Abstract: Jaw tips and jaw tip assemblies for fluid pressure actuated grippers which allow for the gripping, sensing and transferring of a variety of workpieces. Mating concave and convex gripper tips are provided which eliminate or reduce the formation of particulate which flake or peel off a gripper workpiece. Gripper tips having angled workpiece gripping surfaces are provided which allow the gripping of non-flat or non-planar workpieces. Gripper tip assemblies are provided which include sensors which can be used to detect the present or absence of a workpiece. Gripper tip extender assemblies are provided which extend the forward and sideways reach of gripper jaws. Padded gripper tips are provided with gripping surfaces having surface channels formed therein which surface channels direct fluids away from the gripping surfaces.

Abstract: A self-actuating mechanical grapple for lifting and handling an object includes a support housing with upper and lower portions and defining an internal recess. The lower portion of the housing includes a bottom opening which communicates with the recess. Preferably, two or three grapple jaws are provided, the first end portions of which are connected to the housing and the second end portions thereof remain free for engaging an object. The grapple jaws are pivotable between open and closed positions. An actuator member is slidably positioned in the recess for opening and closing the jaws, and includes a cam portion in operative engagement with the first end portions of the jaws in a manner to pivot the jaws when the actuator member moves axially relative to the housing. The actuator member includes a rotatable member with at least one contact member.

Abstract: A modular gripper assembly is provided. The gripper assembly includes a body, a pair of opposable jaw members, a single cam pin and a linkage structure. The body includes a yoke structure defined at one end thereof by a pair of spaced apart wall members and a fluid driven actuator at an opposite end. A stepped-in portion is also provided near the opposite end in which the stepped-in portion extends around the entire periphery of the body.

Abstract: A modular gripper assembly having body with a yoke structure (44) defined at one end thereof and an actuator at an opposite end for reciprocally driving a piston assembly (58) within the yoke structure (44). A pair of opposable jaw members (49) having through-slots (48) formed therein are provided within the yoke structure (44) and coupled to the piston assembly (58) by a cam pin (47) so that at least one of the opposable jaw members (49) pivots when the piston assembly (58) moves withing the yoke structure (44). The jaw members (49) are removable and interchangeable.

Abstract: A gripper that is designed to incorporate the functions of gripping, supporting and pressure tongs into one device. The gripper has two opposing finger sections with interlocking fingers that incline and taper to form a wedge. The interlocking fingers are vertically off-set so that the opposing finger sections may close together allowing the inclined, tapered tips of the fingers to extend beyond the plane defined by the opposing finger section's engagement surface. The range of motion defined by the interlocking relationship of the finger sections allows the gripper to grab, lift and support objects of varying size and shape. The gripper has one stationary and one moveable finger section. Power is provided to the moveable finger section by an actuating device enabling the gripper to close around an object to be lifted. A lifting bail is attached to the gripper and is supported by a crane that provides vertical lift.

Abstract: A modular gripper assembly having body with a yoke structure (44) defined at one end thereof and an actuator at an opposite end for reciprocally driving a piston assembly (58) within the yoke structure (44). A pair of opposable jaw members (49) having through-slots (48) formed therein are provided within the yoke structure (44) and coupled to the piston assembly (58) by a cam pin (47) so that at least one of the opposable jaw members (49) pivots when the piston assembly (58) moves withing the yoke structure (44). The jaw members (49) are removable and interchangeable.

Abstract: A grasping apparatus (10) has multiple fingers (64) joined within slots (56) in the face of a moving piston (50) within a fluid cylinder (20). As the piston (50) moves, cams (62) joined to the fingers (64) are rotated so as to close or open the fingers (64) which are radially mounted. Once actuated the piston (50) is returned to its relaxed position by a spring (70) when fluid pressure is released.

Abstract: A compact high speed gripper assembly includes a simple design with minimal components while providing flexibility for grasping variously sized cartridges. The gripper assembly includes a frame, a rotary solenoid secured to the frame, and first and second gripper jaws movably connected to the frame for movement in opening and closing directions for gripping a cartridge. Each gripper jaw includes a cam surface formed thereon. First and second followers are driven by the rotary solenoid and engaged with the respective cam surface for actuating jaw movement.

Abstract: A fluid operated gripper which possesses a gripper device housing resembling a hollow body and on which a bearing body is secured. On the bearing body at least two relatively moving gripper device jaw carriers are movably mounted in a slot arrangement. A drive piston runs in a piston chamber. The bearing body is designed in the form of an insert body, which is seated like a cartridge in a receiving chamber arranged in an axial extension of the piston chamber. The slot arrangement is overlapped to the side externally by the housing wall, which delimits the receiving chamber, for at least part of its length.

Abstract: The invention concerns a gripper for flat components (38), in particular for circuit boards and circuit foils. The gripper (10) has a gripping slot (20) for holding the component (38) and a clamping element that is tensioned in the direction of the slot opening (22). The clamping element (26) can be pivoted between a clamping position, in which it protrudes into the gripping slot (20) and clamps the component, and an open position in which it is pivoted at least partially out of the gripping slot (20).

Abstract: A collet end effector comprises two jaws pivotably mounted in a housing for movement between an open and a closed position. A collet sleeve surrounds the jaws and is slidably mounted in the housing for movement along the jaws toward and away from a gripping end of the jaws. Each of the jaws has a cam surface; the collet sleeve has collet bearings for riding along the cam surface. The cam surface has a ramp region configured such that as the collet sleeve moves toward the jaws gripping end while the collet bearings ride along the ramp region, the jaws move toward the jaws closed position. The cam surface also has a dwell region extending from the ramp region toward the jaw gripping end configured such that as the collet sleeve moves toward the jaw gripping end while the collet bearings ride along the dwell region, the jaws are maintained in the jaw closed position.

Abstract: A modular gripper assembly having body with a yoke structure defined at one end thereof and an actuator at an opposite end for reciprocally driving a piston assembly within the yoke structure. A pair of opposable jaw members having through-slots formed therein are provided within the yoke structure and coupled to the piston assembly by a cam pin so that at least one of the opposable jaw members pivots when the piston assembly moves washing the yoke structure. The jaw members are removable and interchangeable.

Abstract: A device for manipulating an object, the device including a housing, a first gripping member that is supported by the housing, with the first gripping member having a surface that defines a first bore or a first recess, a second gripping member that is supported by the housing, an activating mechanism capable of causing movement of at least the first gripping member or the second gripping member to place the first gripping member and the second gripping member in gripping relation with the object, and an engagement mechanism supported by the housing, the engagement mechanism capable of engaging the first bore or first recess to selectively prevent movement of the first gripping member away from the activating mechanism.

Abstract: A universal gripper has a movable arm locked in a gripping position by abutting against a movable blocking member. A pair of pivoting arms are maintained in their gripping positions by a blocking member being linearly slid between ends of the arms. Varying movable arm configurations can be easily interchanged with each other and mounted to a body by way of a single fixed pivot pin. The opening angle of a gripper arm can be mechanically limited to various positions by selective positioning of an adjustment member.

Abstract: A microgripper for gripping objects in which gripper arms are actuated against a resilient bias by cams and cam followers powered by a stepper or servo motor operating through a lead screw and nut drive mechanism. Ramp cams, face cams and perimeter cams may be utilized and the arms of the microgripper may be rigidly or pivotally supported at the ends remote from the component gripping ends thereof.

Abstract: Transport star for containers with a basic body which can rotate, on whose circumference several gripper arms, in the form of double levers, are attached in bearings, which can be locked by selflocking in the closed position by means of spreader bodies which are arranged in the basic body so they can rotate. Each gripper arm consists of two parts which are connected to each other by articulation, between which a spring element is inserted, which can be elastically deformed in the closed position. As a result the duration of use of the gripper arms is increased and the range of diameters for the containers to be processed is considerably increased.

Abstract: A spark plug wire puller is described which is actuated by a user squeezing a trigger biased against a handle of the tool which causes two jaw members to come together at gripping ends thereof to squeeze a wire or boot. As the user squeezes the trigger and pulls on the tool, the jaws grip the wire or boot and remove it from the spark plug. The invention is advantageous because it does not rely on a scissors action and it grips the boot in such a way so as not to damage it during the removal process.

Abstract: A universal gripper has a movable arm locked in a gripping position by abutting against a movable blocking member. A pair of pivoting arms are maintained in their gripping positions by a blocking member being linearly slid between ends of the arms. Varying movable arm configurations can be easily interchanged with each other and mounted to a body by way of a single fixed pivot pin. The opening angle of a gripper arm can be mechanically limited to various positions by selective positioning of an adjustment member.

Abstract: A collet to be used in conjunction with a container capping device used primarily in the packaging industry, more particularly for gripping threaded container caps in preparation for the rotation of the caps onto threaded containers. The structure comprises separately pivoting segments for engaging the container cap without significant flexture of the segments.

Abstract: An apparatus for handling a cartridge having a cartridge notch formed therein in a storage library system includes a hand frame adapted for receiving cartridges and a reach carriage assembly movable along the hand frame assembly. A latch arm assembly is pivotally connected to the reach carriage assembly and includes a latch tooth thereon for selectively engaging the cartridge notch. The latch arm assembly is pivotally movable between a latching position, wherein the tooth is positioned for engagement in the notch, and a put position wherein the latch arm is positioned for pushing the cartridge out of the hand frame. Cam devices are provided for pivoting the latch arm assembly between the put position and latching position.

Abstract: A keg roller is provided including a handle with a pair of ends and a pair of roller assemblies each mounted to an associated one of the ends of the handle. The roller assemblies are adapted to rotatably engage a keg such that the same may be rolled by the handle.

Abstract: A plurality of finger-like grippers (12, 13, 14) pivotably supported in a housing (4, 5), and a plunger or piston (7) with a head part (8a) acting on the grippers (12, 13, 4), the piston being supported in such a way that it is free to slide in the housing (4). The grippers are held and guided in openings (17, 18) in the top part (5) of the housing (4) and can pivot about axes transverse to the longitudinal axis (L) of the housing (4, 5), where the pivot axes (a, b, c) of all the grippers are in the same plane (e) and together form a regular polygon surrounding the longitudinal axis (L). The ends of the grippers (12, 13, 14) facing the piston (7) are surrounded as a group by a ring of elastic material or by a garter spring (15), which pulls them toward stop surfaces (4b), which limit the pivoting movement.

Abstract: In a tool changer system comprising one or more tool grippers together with a pressure foot insert change pod supported on a U-V slide which is independent of the machine work table. The slide services a tool magazine mounted on the machine tool in close proximity to the work table. Because the tool changer is independent of the machine table, the selection and retrieval of the next tool to be used is performed while the machine tool is working. Similarly, the replacement of the tool back into its storage location is done while the machine tool is working. The exchanging of the pressure foot insert is done as part of the tool change process. Time is saved because the work table does not have to be moved to position the tool changer under the spindle. In fact, the work table may be moved to the next work location while the tool changer changes the tool in the spindle.

Abstract: A robotic gripper with two fingers for friction gripping. The fingers are self-locking in that an increased resistance to a pulling force results in an increased gripping force. The fingers are mounted onto a thumb that slides in a sleeve. A post extends into slots in the fingers so that movement of the post relative to the thumb causes the fingers to rotate around pivot points on the thumb. The friction force required to move the thumb relative to the sleeve is greater than the friction force required to move the post relative to the thumb. Therefore, movement of the post typically results in rotation of the fingers and a stationary thumb, but there are several ways in which the post can be locked relative to the thumb to provide movement of the thumb relative to the sleeve. The sleeve also includes features so that if an object is being gripped as the post is moving away from the sleeve, the fingers do not grip when the post is retracted.

Abstract: Gripper apparatus for gripping a row of glass containers moving on a lehr conveyor. The apparatus includes a pair of elongated gripping members arranged parallel with one another and relatively movable toward one another to grip a row of glass containers. Actuating means is connected to the gripping members for controlling their relative movement and thus gripping and releasing of the containers. The actuating means may include a series of actuating devices spaced apart along and connected to the gripping members. Those actuating devices are actuable, at least substantially following movement of the gripping members to grip containers on the lehr conveyor, to move the gripping members in a direction away from the lehr conveyor so as to move the depending gripped containers clear of the conveyor.

Abstract: A sheet material carrying device comprises a U-shaped bracket having first and second legs defining a slot therebetween. The first and second legs have leg ends at the ends of the "U"-shaped bracket. Mounted to the first and second legs respectively are first and second opposed facing jaws. The first leg has at its' end a cam follower. The first jaw is pivotally mounted to the first leg and rotatable into the slot. A first jaw engaging lever, having a cam end and an opposed handle end, is pivotally mounted at its'cam end to the first jaw. The cam end comprises a cam surface, whereby the first jaw engaging lever is rotatable by pivoting the handle end about the first jaw so as to engage the cam surface with the cam follower. The first jaw is thereby forced into the slot to frictionally engage a sheet of material placed therein.

Abstract: Present invention provides back-up power tongs for holding a tubular member against rotation of a connected tubular member. The back-up power tongs comprise a body with a front section for receiving the tubular member and a plurality of jaw members for engaging the tubular member. The jaw members are positioned to form a substantially closed perimeter around the tubular member and at least one of the jaw members is a pivotal jaw, moving in a pivotal path to engage the tubular member. An alternate embodiment provides two pivoting jaws and a locking mechanism attached to the end of the pivoting jaws such that the pivoting jaws can be securely interlocked. The improved back-up tongs should not require that the tong body to virtually enclose the pipe and thus will allow the improved back-up tongs to be considerably smaller. The smaller size of the tongs will allow more versatile use since the tongs can operate in areas with less clearance than prior art tongs.

Abstract: The backup tong 10, 110 includes a fluid powered cylinder assembly 72, 172. A wedge 80, 180 is provided at the end of a cylinder rod 76, 176 and forces multiple dies into gripping engagement with the tubular. A pair of links 30, 32 or 130, 132 are driven laterally outward from the centerline 28, 128 of the tong body by the wedge 80, 180, thereby forcing the dies to bite the tubular. The design of the tong is relatively simple and has few moving parts, yet is highly rugged and dependable. Dies 62, 64 and 66 or 162, 164 and 166 may together provide circumferential engagement of at least 270.degree. with a tubular, thereby reliably gripping and minimizing damage to the tubular. The tong 10 includes a door jaw latch pin 58, and is particularly well suited for use on dual tubing strings where there is little axial spacing between the tubing strings.

Abstract: A fabric piece handling apparatus for picking up and placing fabric pieces. The fabric piece handling apparatus includes a pickup assembly having a pair of opposed jaws, a "trapeze" unfolder assembly adjacent to the pickup assembly, and a vacuum assisted magazine for supplying a stack of fabric pieces to the pickup assembly.

Abstract: A gripping device for use in pressing together two radially protruding ends of a hose clamp constituting a spring wire which is wound into a single loop or coil, the diameter of which can be increased by pressing together the two ends of the spring wire. The gripping device has a rigid jaw with a movable jaw hinged thereto, the jaws having gripping devices for gripping the free ends of the spring wire of the hose champ. The relative movement of the jaws is controlled by a first roller and a second roller, the rollers being seated in a roller head, which is moveable and parallel with an additional roller path of the rigid jaw. During movement, the first roller bears against the additional roller path and the second roller against another roller path as a result of which the friction between the individual parts of the gripping device is reduced to a minimum.

Abstract: A magnetic tape cartridge carrier mechanism for transporting a selected one of a number of cartridges to a predetermined position so that writing or reading data from the cartridge may be accomplished. In response to a signal received from data processing equipment or a similar host, the mechanism uses rollers (9) and (14B), motors (13) and (17) and rails (6) and (7) to position itself in front of a particular cell block containing a specific cartridge. From this position, the mechanism selects a cartridge from either of two sides of the apparatus without the necessity of rotating. This is accomplished by inserting a pair of fingers (11A) and (11B) into the cell (3) on the selected side and then moving the fingers together to grasp the selected cartridge. The fingers are then retracted and the mechanism relocated to the predetermined position so data can be read from and/or written to the cartridge.

Abstract: A device for gripping a cylindrical pin. The gripping device has a pair of gripping jaws and a pair of angled levers. The gripping jaws each have interior surfaces disposed in opposing relation and defining a space between the interior surfaces to receive and engage a cylindrical pin. The angled levers each carry one of the gripping jaws near the end of the lever, the levers being further disposed to pivot in angular relation so as to vary the space between the interior surfaces of the gripping jaws and thus grip cylindrical pins of varying sizes. A lock is disposed to cooperate with the angled levers for biasing the angled levers toward each other to engage the cylindrical pin. A handle is attached to the levers for applying a force to the levers and thus to the cylindrical pin engaged by the gripping jaws, the force being directed substantially axially to the cylindrical pin.

Abstract: A portable claw device includes a cylindrical housing having a pair of diametrically opposed vertical slots formed therein. A pair of gripping claws are coupled together by a cross bar with the cross bar slidably received within the pair of diametrically opposed vertical slots of the cylindrical housing. The cross bar has a vertical support bar extending upwardly from a central portion thereof.

Abstract: An automatic loading and unloading system is provided for loading articles supplied from a first location at a rate commensurate with the rate at which articles are supplied from the first location into trays and for unloading the articles from the trays for transport to a second location at a rate commensurate with the demand for articles at the second location, and for balancing a supply of articles loaded onto trays with variations in both the rate of supply thereof and the rate of demand therefor. The system includes a tray loading station, and a tray loading apparatus for loading articles supplied from the first location into trays at tray loading station. An infeed device feeds articles to the loading apparatus in a predetermined, orderly fashion. At a stacking station, a stacking device stacks article-filled trays to form a supply thereof for use on demand. An outfeed device delivers articles on demand to the second location in a predetermined, orderly fashion.

Abstract: A spark plug wire puller is described which is actuated by a user squeezing a trigger biased against a handle of the tool which causes two jaw members to come together at gripping ends thereof to squeeze a wire or boot. As the user squeezes the trigger and pulls on the tool, the jaws grip the wire or boot and remove it from the spark plug. The invention is advantageous because it does not rely on a scissors action and it grips the boot in such a way so as not to damage it during the removal process.

Abstract: An apparatus for gripping hot investment molds either of the ring type or of the oval type, has a plastic handle with an elongated square tube extending therefrom. A trigger in the handle is connected to a linkage rod which pulls back on a closer frame. Rearwardly extending crossed tails of a pair of jaws are squeezed together by rearward movement of the closer, for closing outwardly extending palms of the jaws around an investment mold. The jaw assembly is removable so that jaws having shapes adapted specifically to engage either an investment ring or an investment oval can be provided.

Abstract: A self-contained pick-and-place apparatus for respectively engaging and releasing an elongate group of stacked articles such as an elongate stack of nested can ends comprises an elongate pivot shaft defining a longitudinal axis, a pair of elongated gripping members for surroundingly engaging the articles, and pivot arms coupled with the gripping members and mounted to the pivot shaft for bidirectional pivotal motion about the longitudinal axis for thereby moving the gripping members respectively toward and away from each other. The pivot arms are biased to pivot in a direction for moving the gripping members toward each other. One or more cams are supported by the pivot shaft for movement between a pivot arm open position and a pivot arm closed position.

Abstract: A clam shell action post hole digger includes a pair of opposed movable shovel blades pivotally attached to a cross brace. A combination stationary shaft and an inner movable rod are secured to the cross brace. The rod and shaft each has a handle attached at the upper end to allow the rod to rotate within the shaft by causing the pair of handles to open and close by the user. An eccentric cam plate mounted at the bottom of the rotatable rod causes the pair of shovels to open and close. A spring and pair of locking tangs on the cam plate lock the shovels in the open mode. In an alternate, a locking bar secured to and extending below the cam plate locks the shovels in the open mode. In normal operation the pair of shovels are in the open digging mode. The blade edge on the bottom of each shovel allows the user to form a cylinder-shaped hole by turning and pounding the digger in the ground by gripping and turning the pair of handles.

Abstract: Device for metal cutting a workpiece in a clamping fixture by using tools (WZ) which are removable in alternating sequence from a tool magazine with a sequence control of the machining steps and with a tool spindle unit changing device (4) and with a tool changing device comprised of a movable and rotatable as well as pivotable tongs-type grasp (ZG), the grab jaws (28, 29) of which being aligned to the respective tool removal axis and spindle axis (Z), and a mirror-image jaw profile (30) to receive tools (WZ) with more than two different shank or taper sizes with at least three adjoining arched sections (a, b, d), the radii (ERa, ERb, ERd) of which match the different diameters of at least three shank or taper sizes, and in which the tool spindle unit (10) which is in the working position is insertable into and removable from a receptacle and exchanged for a tool spindle unit (11) in a stand-by position.

Abstract: This invention relates to a mobile robotic arm which is adapted to grasp objects at low-level, intermediate level and high reach areas of a domestic dwelling. The device generally comprises a mobile base having a robotic arm rotatably and pivotally connected thereto. The robotic arm comprises lower arm, mid-arm, and forearm components which are pivotally interconnected and selectively extensible and retractable through the utilization of a controller which is preferably disposed upon an arm rest portion of a wheelchair.

Abstract: A pipe clamp for clamping to a pipe to facilitate lifting and movement of the pipe. The pipe clamp in one aspect has a body member with one fixed arm and with one arm movably connected thereto; or with two arms movably connected to the body member. Preferably, when there are two movable arms, they are urged outwardly by springs biased against the arms and the body member. Gripping elements are provided on the arms and on the body member for contacting the pipe and gripping it. A cylinder movably mounted in a channel in the body member is disposed for movement when a lifting force is applied to a lift member movably connected to the cylinder. As the cylinder moves in response to the lifting force, cam surfaces thereon are forced against rollers movably mounted in plungers, moving the plungers outwardly from the cylinder to contact a portion of the arms thereby forcing the arms toward each other so that a pipe disposed therebetween is clamped between the arms.

Abstract: Lift-clamping device mounted on a movable base for the lifting and transporting of vertically oriented materials. A hinged arm device controlled by an operator using a jack linked to an adjustable clamp mechanism provides a means for lift and support of materials to be transported.

Abstract: A handheld device for picking up objects and its major components are a handgrip assembly, an elongated tubular member, a combination plunger and double bellcrank assembly, and structure connected to the front end of the bellcranks for picking up objects. The structure for picking up objects can be clamshell buckets, gripping jaws, or other desired structure. The combination plunger and double bell crank assembly has an elongated plunger having a head portion on its front end that reciprocates back and forth between the respective left and right side bellcrank members. Cam surfaces on the head portion contact distinctive surfaces of the recesses formed in the bellcrank member causing the structure for picking up objects to open their arms upon travel of the plunger and close their arms upon its return travel.

Abstract: A mechanical hand assembly for use in prosthetic and robotic applications includes multiple fingers pivotally attached to a palm subassembly. The fingers are operatively attached to a central actuating plate so that movement of the actuating plate in opposed directions causes the fingers to bend and straighten. An electric motor drives the actuating plate through a pivotable or tiltable linkage so that when one of the fingers engages an object to be manipulated, the plate tilts and continues to move any opposed fingers toward engagement. Each finger includes a base, a lever arm and multiple phalanges operatively interconnected by gears. Pivotal motion of the lever arm is transmitted to the phalanges through the interconnected phalanges and lever arm and rotation of the gears.

Abstract: A hand apparatus easily attaches and detaches a punch to and from a punch attaching hole of an upper turret of a turret punch press. The hand apparatus includes a vertically and horizontally movable arm, a turnable cylinder attached to an end of the movable arm, and a support cylinder disposed inside the turnable cylinder, such that the support cylinder is horizontally moved and immobilized or restrained relative to the turnable cylinder. A turnable and tiltable hand is disposed inside the support cylinder, and a clamp is disposed at a lower end of the clamp hand.

Abstract: A hypodermic syringe uncapping device includes a housing enclosing two opposed, pivotal arms adapted to grip a cap protecting a hypodermic syringe needle. Upon insertion through a hole in the housing, the capped needle is forced against a movable plunger whose lower end engages one of a number of pins extending from the surface of a rotatable cam located between the arms. Rotation of the cam thus induced allows the arms to pivot toward each other under the urging of an arm-connecting spring, causing the arms to grasp the cap and thereby allow subsequent withdrawal of the needle. When the needle is reinserted in the cap and the cap is again pushed against the plunger, the cam is rotated still further, forcing the arms apart and permitting the cap to be withdrawn from the device.

Abstract: A head case accommodates an axially movable suction nozzle that holds an electric component on a chip by suction at its center. At least four jaws, which are disposed around the center axis of the suction nozzle and adapted to move parallel to the bottom plate of the head case through guide slots radially extending with respect to the same axis, are attached to the bottom plate. Two each of the facing jaws on both sides of the axis are coupled together by means of links and always urged toward the suction nozzle by springs. While expanding rods actuated by pistons open the jaws, the suction nozzle picks up the electric component on a chip by suction. When released on completion of the pick-up, the jaws urged by the springs move an equal distance toward the axis of the suction nozzle parallel to the surface of the bottom plate to squarely hold the four sides of the electric component on a chip, with its center thus held in alignment with the axis of the suction nozzle.

Abstract: A clamp device for transferring a construction material capable of eliminating manual handling of the construction material prior to transferring of the construction material, leading to labor saving. First and second brackets are connected to each other through a joint and a second bracket is engaged with a clamp. The first bracket is suitably mounted on an arm of a civil engineering machine such as a hydraulic shovel and the second bracket is provided with guide slits, in which shafts or pins of the clamp are engagedly fitted.

Abstract: A tool changer for tools of a machine tool has a gripper on which two movable jaws are arranged for positive gripping of the tools and on which is mounted an actuation element which is axially displaceable in the longitudinal axis and swings the jaws around their respective pivot axis into a spread position for inserting and removing the tools and into a closed position for positive gripping of the tools. Between the actuation element and each of the two jaws there are provided one opening linkage and one closing linkage each. Each of the two opening linkages has an oblique surface provided on the actuation element that interacts with an opposing surface provided on the jaw for opening the respective jaw. Each of the two closing linkages has a guide bevel provided on the actuation element which interacts in each case by means of an associated rolling element with a contact surface provided on the jaw for closing the respective jaw. The two closing linkages positively lock the jaws in the closed position.

Abstract: A tool gripper to remove a tool from and position the tool in a work spindle or a tool magazine, respectively, includes two tong-like gripper arms, a support attached to a tool changer on which the two gripper arms are mutually movably mounted, and an operating device to open and close the two gripper arms. To achieve a simple construction with only a few individual parts, and to avoid technically complicated hydraulic or pneumatic driving mechanisms, according to the invention a first spring is disposed between the two gripper arms to provide a closing force. Further, the support having a bore therein, is motor-driven and movably arranged on a column. A pin inserted in the bore, which is axially parallel to the column, may be shifted against a second spring, and a locking member laterally attached to the bore engages between the rear legs of the two gripper arms.