Abstract: A table assembly is used to support a workpiece to facilitate bending of the workpiece. The table assembly is attached to a press brake system and include a base and a clamp. The clamp is movable relative to the base to enable placement of the workpiece onto the base, and the clamp secures the workpiece to the base to block relative movement between the workpiece and the press brake system without additional user operations. The workpiece is secured via the table assembly without a manual force (e.g., to hold the workpiece in place) while the press brake system operates to bend the workpiece. The table assembly reduces, limits, or eliminates certain user operations during metalworking. The table assembly improves user experience (e.g., reduce an amount of manual labor) and/or efficiency associated with press brake operations.

Abstract: An apparatus for converting a single-station vise to a double-station vise includes a pair of end converter jaws, a central converter jaw, and two pairs of shafts configured to extend along opposite sides of the single-station vise. Each of the shafts in the first pair is mounted for sliding movement relative to the first end converter jaw and fixed with respect to the second end converter jaw; each of the shafts in the second pair is fixed relative to the first end converter jaw and mounted for sliding movement relative to the second converter jaw; and all of the shafts are mounted for sliding movement relative to the central converter jaw.

Abstract: A workpiece clamping device having at least one base body. A first clamping body and a second clamping body are movably supported on the at least one base body in a clamping direction. A threaded spindle extends along a spindle longitudinal axis. The spindle longitudinal axis is orientated in clamping direction. It has a first thread section for the first clamping body and a second thread section for the second clamping body. A first coupling body has a first counter thread portion and a second coupling body has a second counter thread portion. In a coupling position the counter thread portions are in engagement with the assigned thread section respectively. In a decoupling position the counter thread portion is disengaged from the assigned thread section. In this decoupling position a movement of the clamping bodies is possible without rotation of the threaded spindle.

Abstract: An apparatus for supporting a vehicle door, the apparatus comprising a base, a first support column mounted on the base, a lift device mounted on the first support column, the lift device comprising at least a first lift bar and a second lift bar each for engaging and together supporting a vehicle door and an actuator operatively coupled to the lift device. When actuated, the actuator imparts vertical movement to the lift device thereby imparting vertical movement to the vehicle door by way of the first lift bar and second lift bar. A second support column is mounted on the base, and the lift device is mounted on and guided by the first support column and the second support column. A load-bearing bridge member spans a space between the first support column and second support column above the base, and the actuator is mounted on the bridge member.

Abstract: A compressor for a shock absorber is provided, including a stretching mechanism and a clamping mechanism. The stretching mechanism includes a first main body and a second main body. The first main body is movably connected with the second main body. The clamping mechanism includes a first abutting assembly and a second abutting assembly which are configured to clamp the shock absorber.

Abstract: A vice including two clamping gaps (10, 20). A first body (1) includes a first jaw (11) and a second body (2) includes a second jaw (21), between which is formed a first clamping gap (10). A third body (3) is connected by an axis (9) to the first body (1), wherein the third body (3) includes a third jaw (31), which is adapted to rotate around the axis (9). The first body (1) includes a fourth jaw (41) opposite the third jaw (31), wherein between the third jaw (31) and the fourth jaw (41) is formed a second clamping gap (20).

Abstract: A handwheel assembly includes a housing. A shaft having a central axis is rotatably supported by the housing. A locking device is rigidly attached to the housing. A rotary gear is circumferentially disposed over the shaft. A handwheel is circumferentially disposed over the shaft. The rotary gear and handwheel are operable to slide along the shaft from a first locked position to a second unlocked position. In the first locked position, the rotary gear is engaged with the locking device to rotationally lock the shaft. In the second unlocked position, the rotary gear is disengaged from the locking device to allow the shaft to rotate.

Abstract: A workpiece for securing the slide and frame components of a variety of polymeric handgun, the workpiece secured within a vise to alternatively anchor the slide components within linear channels within the sides of the upper extension of the workpiece or anchor the slide extensions incorporated within the inverted frame component within transverse mounted side clamping members attaching through appropriately selected plurality of transverse bores within the workpiece, the workpiece providing a secure attachment for each component for tooling, repair, modification or other gunsmith related activities without damage to the components.

Abstract: A pressure-adjusting apparatus for vise including a bolt and a pressure-adjusting element is provided. The bolt having a plurality of positioning holes is adapted for connecting to a vise. The pressure-adjusting element is sleeved onto the bolt movably. The distance between the pressure-adjusting element and the vise can be changed by moving the pressure-adjusting element so as to adjust the clamping force of the vise. A positioning member of the pressure-adjusting element is stocked in one of the positioning holes when the pressure-adjusting element is moving so that the pressure-adjusting element can be fixed at a preset location. Thus, the pressure-adjusting apparatus for vise of the present invention is more convenient for pressure adjustment.

Abstract: A work bench including a frame and a table surface connected to the frame. The table surface includes first and second table surface members. The first table surface member is movably coupled with the frame and has first and second ends. The work bench also includes a first user-actuatable drive member for moving the first end of the first table surface member, a second user-actuatable drive member for moving the second end of the first table surface member and a third user-actuatable drive member for moving the first end and the second end of the first table surface member concurrently.

Abstract: A work table having elevated support members is disclosed. The work table includes a plurality of generally parallel support arrangements. Each of the plurality of generally parallel support arrangements including a plurality of raised portions, wherein the plurality of raised portions are distributed substantially evenly along each of the plurality of generally parallel support arrangements. Each of the plurality of raised blocks defines an opening configured for receiving an attachment. The work table also includes an adaptor plate. The adapter plate may include a base member and a plurality of inserts, wherein the plurality of inserts are spaced apart for insertion into a plurality of raised block openings to removably attach the adaptor plate to the work table.

Abstract: A coaxial concentric double-jaw vice comprises a base frame defining a longitudinal sliding groove, first and second movable jaws mounted on the base frame and movable along the sliding groove, a control rod set inserted through the first and second movable jaws and received in the sliding groove, a fixed screw rod mounted on the control rod set and screw-connected with the first movable jaw, a movable screw rod sleeved onto the control rod set and screw-connected with the second movable jaw and rotatable with the control rod set and movable axially along the control rod set by an external force, a clutch mounted in the control rod set, and a driving mechanism mounted in the control rod set and connectable to the control rod set by the clutch for rotating the control rod set.

Abstract: A device for holding a workpiece, the device comprising a base, a first jaw member, a movable jaw member, and features which allow the movable jaw member to be moved in large increments relative to the first jaw member in addition to features which allow the movable jaw member to be moved in smaller increments. The device can include a drive member operably engaged with the base and the movable jaw member such that the operation of the drive member can move the movable jaw member in small increments. The movable jaw member can include a connection member which can operatively engage the movable jaw member with the drive member. The connection member can be moved between first and second positions to disengage the movable jaw member from the drive member such that the movable jaw member can be slid relative to the first jaw member in large increments.

Abstract: A device for holding a workpiece, the device comprising a base, a first jaw member, a movable jaw member, and features which allow the movable jaw member to be moved in large increments relative to the first jaw member in addition to features which allow the movable jaw member to be moved in smaller increments. The device can include a drive member operably engaged with the base and the movable jaw member such that the operation of the drive member can move the movable jaw member in small increments. The movable jaw member can include a connection member, or claw, which can operatively engage the movable jaw member with the drive member. The connection member can be moved between first and second positions to disengage the movable jaw member from the drive member such that the movable jaw member can be slid relative to the first jaw member in large increments.

Abstract: A pin clamp assembly having a body, a locating pin, an actuator, a drive rod, a cam, and a finger is provided. The locating pin is coupled to the body and movable between extended and retracted positions. The drive rod is movable relative to the locating pin. The cam is movable relative to the locating pin and the drive rod. The finger is coupled to the drive rod and movable between extended and retracted positions. Actuation of the actuator causes the drive rod to move which extends the finger without moving the locating pin. Also, continued retraction of the drive rod after the finger has extended causes the cam to move out from the slot in the body to allow the locating pin to retract.

Abstract: A work bench having elevated support members. The work bench may comprise a generally rectangular frame defined by two elongated members and two side members; a support base for supporting the generally rectangular frame in a generally horizontal plane; a plurality of cross members disposed in between the two side members, each of the plurality of cross members being generally parallel to the two side members and being coupled to the two elongated members; and a plurality of raised blocks located on top of each of the two side members and each of the plurality of cross members, wherein the plurality of raised blocks located on each of the two side members are distributed substantially evenly along each of the two side members, and the plurality of raised blocks located on each of the plurality of cross members are distributed substantially evenly along each of the plurality of cross members.

Abstract: A clamping device includes a supporting base, a frame member, two slidable members, and a bolt. The frame member is mounted on the supporting base and defines a through hole. The frame member further defines two mounting holes on two opposite walls of the through hole. Each slidable member comprises a clamping portion and a matching portion connected to each other, each clamping portion defines a clamping surface. The clamping surface defines clamping grooves. A saw-toothed structure is formed on an inner wall of each clamping groove. Each matching portion is received in the through hole and defines a threaded hole. The bolt is threaded and passes through the threaded holes. The threads of the bolt engage with the threaded holes, two ends of the bolt are respectively received in the mounting holes. The two slidable members slide towards or slide away from each other when the bolt is rotated.

Abstract: A micro-adjustable parallel bench vise includes a slide holder having a top dovetail rail, a vise body having a bottom dovetail groove coupled to the dovetail rail of the slide holder and holding a fixed jaw member, a screw holder slidably mounted in the top side of the vise body, a screw rod threaded into the screw holder and rotatable to move the screw holder relative to the vise body. When multiple vise bodies are mounted on the slide holder in parallel, they are micro-adjustable to hold a workpiece or multiple workpieces precisely in position.

Abstract: An apparatus and method for separating a pin tool from a shoulder tool, after the pin tool and shoulder tool have become welded together during a friction stir welding operation. In one exemplary embodiment a frame is used to support the shoulder tool. A fluid pressure actuating assembly is used for gradually exerting a force on the pin tool while the shoulder tool is held stationary within the frame. The gradually increasing force gradually breaks the weld and separates the pin tool from the shoulder tool without damaging the pin tool.

Abstract: A five axis vise includes two separated vise body portions that are supported on a machine tool table or other support that fixes the vise body portions in position. The vise body portions have jaws spaced up from the machine tool table sufficiently to permit machining five surfaces of a work piece held in the jaws. A vise screw is rotatably mounted in one of the vise body portions, and extends to the other vise body portion to actuate a movable jaw on the other vise body portion. The vise screw is threaded into a jaw nut that has a drive surface that engages and drives a driven surface on the movable jaw, with the drive and driven surfaces being inclined relative to the axis of force application to provide a downward force component on the movable jaw as it is tightened. The vise screw is an assembly of a threaded shank or shaft and a hub that is rotatably mounted in one of the body portions, with the threaded shank or shaft being locked in position in the hub.

Abstract: A power-actuated vise apparatus includes a first jaw which is disposed on a base, and a second jaw which is supported by a carrier to be movable in a longitudinal direction by an angular force in an initial course. The carrier is further pressed by a linear force in a subsequent course to bring the second jaw into tightened engagement with a workpiece against the first jaw. A servo control mechanism is disposed to drive a torque transmitting member so as to transmit a torque force. A force coupler unit is configured to couple the torque transmitting member to the carrier and to take up the torque force from the torque transmitting member to result in generation of the angular force and the linear force.

Abstract: A coupling for securing a first element to a second element includes an actuation bolt, a clamping jaw mounted on the first element which comprises a bore having a threaded part which defines a nut that threadedly engages the actuation bolt, and a torque limitation device positioned between the actuation bolt and the bore for transmitting the rotational movement of the actuation bolt directly to the clamping jaw to thereby rotate the clamping jaw about the axis. In operation, when an external force acting on the clamping jaw is greater that the force generated against the bore by the torque limitation device, rotation of the actuation bolt will result in translation of the clamping jaw, and when the external force acting on the clamping jaw is less than the force generated against the bore by the torque limitation device, rotation of the actuation bolt will rotate the clamping jaw about the axis.

Abstract: Clamping means which may be used with soldering pliers, having a first element (18) and a second element (20) relatively displaceable by the action of a screw (10) that can be rotated about an axis (XX) by the action of a motor (M); a nut (12) cooperating with the screw (10) and which can be driven in the direction of the screw axis (XX), the screw being coupled to the first element (18); first guiding means (34L) defining linear guidance parallel to the axis (XX) of the screw to prevent rotation of the nut (12) in a first phase of displacement of the nut; and second helicoidal guiding means (34H) extending with the axis (XX) of the screw (12) and which has an thread inverted in relation to the screw thread to allow the nut (12) to rotate in the same direction of rotation as the screw (10) in a second nut displacement phase; in addition to a compensation system (46) arranged between the first element (18) and a mobile support (14) coupled to the nut (12) in order to reinitialize the position of the first elem

Abstract: A micro-adjustable parallel bench vise includes a slide holder having a top dovetail rail, a vise body having a bottom dovetail groove coupled to the dovetail rail of the slide holder and holding a fixed jaw member, a screw holder slidably mounted in the top side of the vise body, a screw rod threaded into the screw holder and rotatable to move the screw holder relative to the vise body. When multiple vise bodies are mounted on the slide holder in parallel, they are micro-adjustable to hold a workpiece or multiple workpieces precisely in position.

Abstract: An improved sine vise that overcomes the deficiencies and limitations of conventional sine vises through the use of the following features: a circular sawtooth ratchet quick clamping system; a rotating dual jaw with one V cut depression face; a set of extended opening upper jaw lips; angle adjustment stays with counter rotating locking screws; a T shaped jaw clamping drawbar; a zero tolerance roll hinge; and a lipped vise base adapted for robust clamping to the cutting tool table with conventional T slot bolts and dogs.

Abstract: A tail vise is disclosed. The novel tail vise includes a longitudinally extending guide secured to or integrated into a surface, which has an axially threaded bore to receive a threaded vise rod, a compression housing slideably surrounding said longitudinally extending guide, and a threaded vise rod connected to said compression housing, threaded through the axially threaded bore of said longitudinally extending guide. The compression housing is slideably attached to the guide and spinably secured to the threaded vise rod, and therein serves as the means of compression.

Abstract: A tool holding and working piece-clamping assembly has a stand, a driving device, a threaded rod, a rail assembly, a brake post, a working piece-clamping device and a tool holding device. The working piece-clamping device has an upper clamping device slidably connected to the rail assembly and a lower clamping device corresponding to the upper clamping. The working piece-clamping device has a brake electrically connected to a contact switch and slidably mounted on a brake post. The tool holding device is slidably connected to the rail assembly and has a connecting base screwed with the threaded rod. With such an arrangement, only one threaded rod with a driving device is needed to actuate the tool holding device and the working piece-clamping device to operate. Consequently, the consumption of power can be reduced.

Abstract: A clamping device having a front member, a back member opposing the front member, a pair of opposing side members, a stop block and a clamping mechanism. The side members extend between and connect the front member and the back member. The work piece is supported by and between the side members. The stop block is interposed between the back member and the work piece. The clamping mechanism, which is operatively coupled between the front member and the work piece, exerts a clamping force against the work piece to press the work piece against the stop block. In this way, the work piece is clamped between the front member and the back member.

Abstract: The apparatus comprises a box shaped body and a clamping member, movably supported between first and second operative positions to lock and respectively release a work piece. A linear detecting device generates a set of control signals for a control unit, during the movement between the operative positions of the clamping arm. The detecting device comprises a first and a second sensor and indexing means in the form of a comb-shaped member having spaced apart teeth to sequentially activate the sensors and provide the set of control signals during the movement of the clamping member.

Abstract: The clamping device for clamping work pieces comprises a box-shaped casing and a pivotally supported clamping arm operatively connected to a control actuator. The clamping device comprises at least a first and a second sensor for detecting and monitoring operative positions of the clamping arm; the sensors are adjustably fastened to a base plate comprising a plurality of anchoring bushes for the sensors spaced apart and aligned in a longitudinal direction of a base plate. Each sensor is removably secured to the base plate by fasteners, which engage with respective anchoring bushes.

Abstract: The device includes a mechanism movable at least partially in translation and an electrical actuating element. The mechanism and the electrical actuating element are mounted head to tail, so as to reduce the size of the body of the device.

Abstract: A positioning device for determining the position of an object includes an anchoring surface, a first movable carriage on which the object is loaded and which has a means for suctioning onto the anchoring surface, a second movable carriage which has a drive assembly and which is connected with the first movable carriage as needed, and a connecting means which controls the connection of the first and second movable carriages. The first and second movable carriages are connected by the drive assembly and the first movable carriage is conveyed to a predetermined position on the anchoring surface and is suctioned and anchored on the anchoring surface at this position by a means for breaking the connection between the first and second movable carriages and for performing the suctioning to position the object.

Abstract: A workpiece support assembly includes an elongated workpiece support structure and a pair of support members pivotally connected to one another towards upper ends thereof. The support members are pivotally movable between an open position and a folded position. The workpiece support structure has a workpiece support surface constructed and arranged to support a portion of a workpiece. The workpiece support assembly further includes a tabletop assembly. The tabletop assembly is movable into a deployed position in which the tabletop is disposed substantially horizontally in overlying relation to the workpiece support structure, with the pair of support members in their open operative position. The deployed tabletop presents an upper tabletop surface to support a workpiece. The tabletop assembly is movable, with the pair of support members in their open operative position, into a storage position which exposes the elongated workpiece support surface.

Abstract: A vise includes a screw rod extended through an adjustable and a fixed jaw. The adjustable jaw is internally provided with a cam sleeve having a centered cam-shaped bore and two opposite arms outward projected therefrom. The cam-shaped bore is slightly larger than an outer diameter of the screw rod, and provided at one lateral surface with a small length of screw threads. When the screw rod is turned clockwise, it brings the cam sleeve to rotate at the same time while moves in the cam-shaped bore to mesh with the screw threads in the bore, causing the cam sleeve to axially move along the screw rod and finely shifts the adjustable jaw relative to the fixed jaw. And, when the screw rod is turned counterclockwise, it disengages from the screw threads in the cam-shaped bore, allowing the cam sleeve to freely and quickly move along the screw rod.

Abstract: The invention relates to a tensioning device, in particular a machine vice, with a base body, with a stationary jaw attached thereto and with a movable jaw opposite this, for whose adjustment there is provided a tension rod, wherein the tension rod comprises a support bearing via which the movable jaw is supported by way of a compression rod. The object of the invention is to specify a tensioning device which permits a quick tensioning also of differently dimensioned subjects and furthermore offers the largest possible protection from contamination of the functional parts. This object is achieved in that the movable jaw is formed lockable at various distances to the stationary jaw with the compression rod, preferably by way of clamping bodies.

Abstract: A slender cylindrical torque-limiting handle for a machinist's vise is built along an internal shaft. A drive clutch with a distal end coupling engaging the vise shaft of a vise, and a proximal end presenting a multiple tooth inclined plane, is affixed to the shaft. A pressure clutch, fitted about the shaft, has a distal end multiple tooth inclined plane complimentary to, and mating with, the multiple tooth inclined plane of the drive clutch. A given rotational torque in a one rotational direction applied to the pressure clutch about the shaft will, in accordance with the extent to which the distal end of the pressure clutch is held pressured to the proximal end of the drive clutch, produce a correspondingly associated angular rotation of the drive clutch, tightening the vise until, at a preset torque, the pressure clutch will thereafter slip relative to the drive clutch.

Abstract: A mechanic's bench vise which is easy to use and increases the maximum level of clamping force on a workpiece in a pair of jaws of the vise. Another benefit is that it allows a vise to be used performing operations such as installing bushings, die punching holes, and setting rivets. One feature of the invention is that it measures the amount of torque which is applied to the torque arm. The invention broadly comprises a vise having at least one long slender torque arm for opening and closing a pair of jaws of a vise and a ratchet for opening and closing a pair of jaws of the vise. In a first aspect of the invention, the torque arm is not intended to be removed from the vise during normal service. In a second aspect, the length of the torque arm is adjustable. In a third aspect, the torque is removable for shipping and storage and to allow the use of different style and length torque arms.

Abstract: The invention relates to a tensioning device, in particular a machine vice, with a base body, with a stationary jaw attached thereto and with a movable jaw opposite this, for whose adjustment there is provided a tension rod, wherein the tension rod comprises a support bearing via which the movable jaw is supported by way of a compression rod. The object of the invention is to specify a tensioning device which permits a quick tensioning also of differently dimensioned subjects and furthermore offers the largest possible protection from contamination of the functional parts. This object is achieved in that the movable jaw is formed lockable at various distances to the stationary jaw with the compression rod, preferably by way of clamping bodies.

Abstract: A vise includes a base with a fixed jaw and a screw extends through the base and a movable jaw is connected to the screw. A frame is fixedly connected to the base and a first wedge ramp extends from the frame. A sleeve movably extends through the frame and a second wedge ramp extends from the sleeve. A spring is mounted to the screw and received in the sleeve. An end of the screw extends through the spring and extends from the hole in the frame. A crank handle is connected to the end of the screw. When the sleeve is rotated to match two respective high points of the two ramps, the sleeve and the screw are shifted and quickly clamp the object by movement of the screw.

Abstract: A device to protect apparatus has a movable section moved alternately by drive means housed in a fixed casing of said apparatus, this alternating motion relative to the fixed casing creating an opening that expands and contracts in a lengthwise direction. The protection device comprises: a plurality of protection elements each having at least one covering portion designed to transversally close said opening and extending lengthwise; means for fixing one end of the protection device to the apparatus; and means for fixing the opposite end of the protection device to the movable part of the apparatus, retaining means also being envisaged for connecting adjacent protection elements to one another and designed to allow the plurality of protection elements to telescopically extend and retract so as to close off said opening lengthwise as the opening expands and contracts.

Abstract: A vise is composed of a base, a first transmission block, a second transmission block, a first movable jaw mounted on the first transmission block, a second movable jaw mounted on tee second transmission block, a control rod located in a slot of the base such that the control rod is engaged with the first transmission block and the second transmission block and that the control rod is capable of being actuated by a handle to drive the movable jaws to move toward or away from a fixed jaw located between the two movable jaws. The first transmission block is provided with two guide rods and a locating mechanism fastened with the guide rods.

Abstract: A work bench includes a frame, a bench surface on the frame with the bench surface including at least two members, one of which is movable along the frame for clamping a workpiece between the members. A mechanism for moving the member includes two screws coupled with the members. The two screws are spaced with the member for moving the member upon rotation of the screws. A sprocket is coupled with each of the screws. A transmission belt or chain is coupled with the sprockets. At least one handle is coupled with one of the screws to rotate the screws. At least one clutch is coupled with the at least one screw to limit clamping pressure on the workpiece. The clutch enables rotation of one screw with respect to the other screw so that workpieces may be clamped between the members and clamping of the workpiece may be accomplished by rotation of the screws with one hand of the operator. Also, a guard may be present which covers the transmission belt or chain.

Abstract: A method for attaching a jaw to a vise-like workholding apparatus. The method includes placing the jaw member onto a support member of the workholding apparatus in a first direction that is perpendicular to a worksurface of the workholding apparatus. The jaw member is placed such that at least a portion of the support member is received within a cavity in the jaw member in a first released position. The method also includes applying a first axial force in a first axial direction to the jaw member to cause the jaw member to move axially in the first axial direction to a second position wherein it is retained on the support member.

Abstract: An improved vise with a fixed jaw and a movable jaw which is guided by a lead screw to move along a pair of ways guiding the movable jaw. The movable jaw is adjusted to maintain a face which is precisely parallel with a face of the fixed jaw. The movable jaw is constructed of an upper component which travels on the ways, and a U-shaped lower member which inserts and telescopes into the upper component. The two jaw members contact at a chamfered face which cants or tilts the upper jaw member so that the movable jaw construction can be leveled. Leveling assures that the upper and lower jaw members cooperate, thereby interacting with a tapered face between the two to change the relative angle. In effect, the movable jaw face is maintaining precisely parallel and overcomes off center mounting of a workpiece.

Abstract: A clamping device for at least one adjustable element has at least one adjusting spindle designed to receive a crank for adjusting the element. Upon pushing the crank unto the adjusting spindle, a signal for releasing the clamping action is triggered.

Abstract: An improved vise of the type comprising an elongated base defined by opposed, spaced-apart end edges and spaced-apart side edges, including a planar upper surface, and adapted to be mounted on the work surface of a machine that performs machining operations; an elongated first jaw fixedly mounted at one end of the base and having a jaw portion extending a short distance above the upper surface thereof; an elongated second jaw moveably mounted on the planar upper surface of the base, spaced-apart from the fixed jaw and parallel thereto, having a jaw portion extending a likewise short distance above the plane; opening/closing means passing underneath the planar upper surface and received in the second jaws in captive movement with the first jaw for drawing the jaws together and forcing them apart, and including a handle for turning the shaft means with respect to the jaws; the improvement comprising a plurality of elongated, floating jaw members, each member defined by a smooth base for sliding movement over th

Abstract: A worktable includes two beams and two pairs of legs pivotally coupled to the beams for forming a foldable base. A plate is disposed on two seats and two fasteners may secure the plate and the seats on the beams. Two bolts are rotatably received in the beams and two slides are threaded with the bolts and slidably received in the beams. Two blocks are slidably disposed on the beams for supporting another plate, and two fasteners may secure the plate and the blocks to the slides for allowing the worktable to be easily assembled and disassembled.

Abstract: A vice jaw assembly mounted upon a precision machining piece of equipment, the equipment including a platform accessible by a machining tool. The vice assembly includes a base which is fixedly secured upon the platform and first and second spaced apart jaw members which are in turn mounted upon the base. A crank mechanism is employed for actuating at least one of the jaw members in directions towards and away from each other. First and second spacer blocks are secured to the first and second jaw members, respectively, by mounting bolts which extend through aligned apertures between the spacer blocks and jaw members. A mounting pin secures to the first spacer block and extends through an aperture in the second spaced apart spacer block. Additional intermediate and floating spacer blocks are arrayed at predetermined locations between the first and second spacer blocks and each includes an additional aperture formed therethrough which receives in inserting fashion the mounting pin.

Abstract: The clamping device includes a body with two slides which can slide therein. The slides each carry a jaw that can be shifted opposite to the other jaw by an axially movable screw spindle. A central jaw can be fixed in the central region of the body. An abutment part is arranged at an operating end of the body, in the lower region of the slide and of the body facing away from the jaw. The abutment part has a lug which can shift to a limited extent in an end recess of the base part of the body. A spring arrangement is supported at one end on the lug and at the other end in a pocket of the base part. The abutment part includes a finger which engages in a longitudinal groove provided at the underside of the slide and carries a clamping element at its free end facing towards the central jaw, with which device the finger can be jammed in the longitudinal groove.

Abstract: A machine vise has lateral cuttings outlets (10). Two wipers are provided on the slide (6). The first wiper (7) cooperates with the surface of a cylindrical region (2) of the spindle (1). The second wiper (8) clears the cuttings from the thread (4) of the spindle (1).