Abstract: A machine and method for the finishing of gears with a finishing tool, in particular a grinding wheel; the machine having a plurality of workpiece carrier slides, a plurality of workpiece carrier spindles, each of which is mounted on a respective workpiece carrier slide, and a plurality of loading-unloading stations; each workpiece carrier spindle is rotating and supports a gear; each workpiece carrier slide slides from a respective loading-unloading station to a working station and vice versa; in which the control unit synchronizes the rotation of each gear with the rotation of the finishing tool outside of the working station so that by entering the working station the gear meshes with the finishing tool without collisions.

Abstract: A gear machining device for machining a gear by using a machining tool which has a rotation axis inclined relative to a rotation axis of a workpiece and feeding the machining tool relatively in the rotation axis direction of the workpiece by rotating the machining tool in synchronization with a rotation of the workpiece. The gear machining device includes a tool state memorizing portion for memorizing a tool state including a position or a posture of the machining tool relative to the workpiece for machining a tooth bottom, first and second side surfaces of the gear and a machining control portion for controlling machining of the workpiece under each tool state of the machining tool memorized in the tool state memorizing portion.

Abstract: A wire electrode for spark erosion is proposed, having a total diameter between 0.05 and 0.4 mm, an inner steel core made of steel and an outer coating surrounding the steel core, which electrode is cost-effective and simultaneously satisfies the mechanical and electrical demands placed thereon, it is further proposed that the coating has an iron-zinc alloy layer and the thickness of the iron-zinc alloy layer at its thinnest point is greater than 5% of the total diameter and at its thickest point is less than 25% of the total diameter.

Abstract: A laser assembly is disclosed. The laser assembly includes a carrier for mounting a semiconductor laser diode (LD) and a capacitor thereon. The carrier provides, in a top surface thereof, a metal pattern having a die area for mounting the LD through a brazing material, a mounting area, and an auxiliary area for absorbing a surplus brazing material. The capacitor is mounted on the mounting area closer to the LD through another brazing material.

Abstract: A method and apparatus for TIG welding and starting a TIG welding process includes limiting the pulse width of a power circuit when a TIG start is being performed, and monitoring for the creation of a welding arc. After the welding arc has been detected the limiting of the pulse width is ended.

Abstract: Methods and apparatus for a material cutting system are provided. The system has a table for receiving a work piece. A cutting head cuts the work piece on the table and includes a positioning apparatus. The positioning apparatus moves the cutting head relative to the work piece at an angle relative to a planar surface of the work piece. The material cutting system also includes a computerized numeric controller (CNC) controlling the positioning apparatus. The CNC references a table of values within application software to find a material value and a work piece thickness value within the table to determine the angle from the perpendicular to produce a kerf edge that is formed at a particular angle to the work piece planar surface.

Abstract: Embodiments of a the present disclosure include a remote control system for a welding system having a control device and control circuitry configured to select a first operating parameter adjustment for a first operating parameter of the welding system based on a first actuation of the control device, wherein the first operating parameter adjustment comprises an adjustment to a rate of change of the first operating parameter.

Abstract: A method and apparatus for providing a welding type power is disclosed. It includes an outer housing having a wind tunnel within the outer housing. Air flows through the wind tunnel in an air flow direction. The width of the tunnel is less at one location than at another location. Electrical components receive power and provide a welding type output. A first group of those components require air flow for cooling, and are disposed at least partially in the wind tunnel. A second group of components are not disposed in the wind tunnel. The wind tunnel can also change direction.

Abstract: A method and apparatus for air carbon arc cutting (CAC-A) using a welding-type power supply includes selecting a CAC-A mode and providing current in a CAC-A mode at a selected current setpoint. Start and restrike algorithms can be used that are specifically for CAC-A.

Abstract: A method and apparatus for providing welding type power, including a power and control circuit is disclosed. The power circuit provides welding, control and aux power. The control and aux power are provided with a transformer, and secondary windings for control and aux power are wound on a single bobbin, with a winding separator separating them. Air vents, which can be formed by fins on the bobbin or separator allow cooling of the inner winding.

Abstract: A method and apparatus for providing welding-type power supply includes a power circuit and a controller. The power circuit receives input power and provides welding type power and auxiliary power. It is controlled on a control input. The power circuit also includes an auxiliary power transformer. A temperature responsive component is mounted in the auxiliary power transformer and provides a temperature signal indicative of the temperature in the auxiliary power transformer. The controller controls a cooling fan for the aux power transformer and/or turns off the aux power output in response to the sensed temperature.

Abstract: A welding power source configured to receive an input power includes a plurality of components and supervising circuitry configurable in a plurality of modes. The plurality of components include power conversion circuitry and background power supply. The supervising circuitry is configured to distribute the input power to the plurality of components based at least in part on a mode of the plurality of modes. The plurality of modes include a welding mode configured to distribute the input power to the power conversion circuitry and to the background power supply. The plurality of modes also include a monitoring mode configured to distribute the input power to the background power supply, and to not distribute the input power to the power conversion circuitry.

Abstract: Disclosed is a wire feeder including a housing having wire inlet and outlet regions. In some approaches, a tensioning assembly includes a pivotable tension arm and a pivotable tension knob assembly. The pivotable tension arm has a pivot axis oriented perpendicular to the direction of a wire fed through the wire feeder, while the pivotable tension knob assembly has a pivot axis oriented parallel to the direction of the wire fed through the wire feeder. A roller assembly includes a drive roller rotatably coupled to the pivotable tension arm, and a feed roller coupled to the housing. The feed roller is positionable opposite the drive roller to receive a welding wire therebetween and to move the welding wire from the wire inlet region to the wire outlet region. A gear assembly transmits rotational motion from a motor to the feed roller.

Abstract: A contactor providing for electrical contact in a welding torch includes a body member having first and second opposite sides, and adjacent pivot and head portions. The pivot portion has an outwardly curved contact surface on the second side providing a pivot point. The head portion also has a contact surface on the second side. The pivot portion has a shorter length between the first and second sides than the head portion. The contactor may be pivotally mounted in a torch connector body. At least one resilient member urges the contact surface of the pivot portion into engagement with an inner flange surface of the connector body, and biases the head portion into an opening in the torch connector body. The contact surface of the head portion is engageable with a torch neck inserted into the torch connector body, and provides an electrical connection between the torch body and neck.

Abstract: A portable welding system casing includes front, rear, top and bottom portions. First and second side members can each have a plurality of fastening lug portions. The first and second side members may each have a recess so that the recess of the first side member receives a first perimeter edge of the front, rear, top and bottom portions and the recess of the second side member receives a second perimeter edge of the front, rear, top and bottom portions. A plurality of handle members can be coupled between associated fastening lug portions of the first and second side member. First and second foot members coupled to respective surfaces of the front, rear and bottom portions. The resulting casing has improved structural strength and rigidity.

Abstract: In a conventional spot welding gun, since pressurizing force due to a movable electrode is measured by a pressure sensor at each of a plurality of attitudes, calibration work is complicated. A spot welding system 10 includes a spot welding gun having an opposite electrode 44, a movable electrode 48, and a drive part 52, a position detection part 54 that detects a position of the movable electrode 48, and a pressure change calculation part that calculates an amount of change between first pressurizing force at a first attitude and second pressurizing force at a second attitude based on a first position of the movable electrode 48 when the drive part 52 has been driven by a first pressurizing force command at the first attitude, a second position of the movable electrode 48 when the drive part 52 has been driven by the first pressurizing force command at the second attitude, and the first pressurizing force command. The first pressurizing force command and the first pressurizing force coincide with each other.

Abstract: A method for ablating a workpiece by a pulsed laser beam includes pretreating a workpiece surface of the workpiece by moving the pulsed laser beam over the workpiece surface along a surface path, first consecutive laser pulses of the pulsed laser beam having a first pulse overlap on the workpiece surface in a path direction, and ablating the pretreated workpiece surface by moving the pulsed laser beam over the workpiece surface along the surface path multiple times. The second consecutive laser pulses of the pulsed laser beam have a second pulse overlap on the workpiece surface in the path direction, and the second pulse overlap is less than the first pulse overlap.

Abstract: A laser cutting device, including a laser beam generation unit emitting a laser beam; an optical system on a traveling path of the laser beam; a laser main body providing a passage through which the laser beam travels towards a substrate after passing through the optical system; a suction unit coupled to a header of the laser main body and sucking impurities, the suction unit including a curved surface therein; and a collection unit connected to the suction unit and collecting discharged impurities, the impurities being discharged to the collection unit along the curved surface inside the suction unit.

Abstract: A machine for additive manufacturing positions a film having additive material relative to a substrate. The additive material is melted onto the substrate or previously formed layers of a workpiece using a laser. The substrate/workpiece and/or the film can be positioned in multiple axes so that complex shapes can be formed without extraneous supporting structures. The film-based delivery of the additive material allows deposition in orientations other than horizontal as is required for powder-only additive manufacturing and also avoids the inconvenience of collecting and recycling unused loose powdered metal.

Abstract: A system for automatically inspecting and trimming a ceramic patch antenna includes an inspection apparatus electrically connected to a radio frequency component testing fixture. The inspection apparatus is inputted standard parameters of electrical characteristics of the ceramic patch antenna. The ceramic patch antenna is arranged on the radio frequency component testing fixture. Then, the inspection apparatus is configured to measure electrical characteristics of the ceramic patch antenna and to judge whether the electrical characteristics of the ceramic patch antenna are the same as the standard parameters or not. The inspection apparatus is configured to drive a trimming machine for trimming a radiation metal surface of the ceramic patch antenna if the electrical characteristics of the ceramic patch antenna are different from the stand parameters.

Abstract: The present invention relates to transient liquid phase sinter pastes for electronic interconnects, and sinter paste application and processing methods.

Abstract: An electrode includes a working end portion defining a first truncated cone. A seating end portion defines a second truncated cone and including a threaded portion having a plurality of threads with a thread angle of 55°. An elongated body defines a longitudinal axis. The elongated body is located between the seating end portion and the working end portion. A method is also disclosed.

Abstract: [Object] There is provided a flux-cored wire capable of obtaining a weld metal having excellent low temperature toughness and improving welding efficiency, in which preheating performed for preventing cold cracking can be omitted or simplified. [Means for Solving Problems] The flux-cored wire includes one or more of CaF2, BaF2, SrF2, MgF2, and LiF and, when a total amount thereof is defined as a, the ? is 2.0% to 7.0%, by mass %, with respect to a total mass of the flux-cored wire, one or more of a Ti oxide, a Si oxide, a Mg oxide, an Al oxide, a Zr oxide, and a Ca oxide are included in the flux-cored wire, and when a total amount thereof is defined as ?, the ? is 0.2% to 0.9%, by mass %, with respect to the total mass of the flux-cored wire, a ratio of an amount of the CaF2 with respect to the ? is 0.90 or more, and a ratio of the ? with respect to the ? is 3.0 or more and 15.0 or less.

Abstract: A hybrid braze tapes includes a braze tape layer comprising a braze alloy composition and a binder, and, a polytetrafluoroethylene (“PTFE”) tape layer disposed adjacent a surface of the braze tape layer.

Abstract: Various welding accessory apparatus are disclosed herein. A welding accessory apparatus can include a welding lens and a vacuum assembly. The welding lens can be configured to filter at least one of ultraviolet, infrared, and visible light to a shade number of at least two. The vacuum assembly can have at least one intake aperture positioned proximate to the welding lens. A welding accessory apparatus can include a welding lens and a flexible curtain. The welding lens can be configured to filter at least one of ultraviolet, infrared, and visible light to a shade number of at least two. The flexible curtain can be positioned proximate to the welding lens and can be configured to provide protection from sparks and spatter generated during welding. A welding accessory apparatus can include a shielding strip and a fastening member. The shielding strip can be one of fabric and flexible film. The shielding strip can be configured to provide protection from sparks and spatter generated during welding.

Abstract: A workpiece positioner is includes a main positioner body including first and second end plate members. The main positioner body also includes a pair of tubular structural members extending between and interconnecting the end plate members, a number of substantially co-planar panel sections disposed between the first and second end plate members, and a number of spaced-apart reinforcing ribs interspersed between the panel sections, the reinforcing ribs also disposed between and interconnecting the tubular structural members. Each of the reinforcing ribs has two opposite side edges, each formed with an arcuate outline shape. The workpiece positioner may also include two or four workpiece support arms attached to the main positioner body, where each of the support arms may have a workpiece-supporting turntable mounted thereon, and may further include first and second shield members attached to the respective tubular members. A method of operating a workpiece processing machine is also described.

Abstract: A method is used to produce a piston pump having a housing and a piston subassembly. The piston subassembly is displaceably guided in the housing and has a first, rod-like piston element and a second, sleeve-like piston element. The second piston element is connected to the first piston element via a press fit. At least one transverse bore and a longitudinal bore are arranged in the second piston element. A stop edge for the housing is arranged on the second piston element. The piston subassembly also has an inlet valve, which includes a receiving element, in which an inlet valve spring and an inlet valve sealing element are arranged. The piston subassembly also has a corresponding inlet valve seat, which is arranged on the second piston element. While the second piston element is being machined, the press fit and the longitudinal bore are produced and/or finished in one step.

Abstract: The basic body of the magnetic clamping plate, particularly the basic body (1) of the radial magnetic clamping plate, which contains of at least one annulus (2) that is seamless, rolled, and forged. The method of production of the basic body of the magnetic clamping plate, particularly method of production of the basic body of the radial magnetic clamping plate, where semi-finished product of at least one annulus (2) is created first by rolling and/or forging with subsequent machining, whereas in case the basic body (1) of the magnetic clamping plate contains of at least two annuluses (2), the semi-finished product is machined so that technological shape and size of the annulus (2) are created, whereas both annuluses (2) are arranged so that they are mutually connected.

Abstract: A method, non-transitory computer-readable storage medium, and tool changing system for changing tools on a machine. The tool changing system includes a tool magazine, a tool transporter, and an automatic tool changer (ATC). The ATC includes a tool holder and a tool changer. The tool magazine is configured to store at least one tool received at the tool loading station. The tool transporter is configured to transport a tool from the tool loading station or the tool magazine to a tool transfer position of the ATC, and to hold the tool at the tool transfer position during an automatic tool change process. The tool holder is configured to hold the tool at the tool transfer position during the automatic tool change process when the tool transporter is not positioned at the tool transfer position. The tool changer is configured to provide the tool at the tool transfer position to a tool change position of a machine during the automatic tool change process.

Abstract: A backlash automatic detection system comprises a control device and a machine tool. The machine tool comprises a servo driver, a lead screw, a nut seat and a platform. The method comprises: entering an initial state and outputting a control command to the servo driver through the control device; driving the lead screw by the servo driver to move the nut seat towards a first direction and changing the movement direction of the nut seat towards a reverse second direction by the servo driver; defining a backlash phenomenon period according to one time point at which the nut seat starts to move towards the second direction and another time point at which the platform is driven to move by the nut seat; defining the displacement of the nut seat corresponding to the backlash phenomenon period as a backlash value.

Abstract: A hand-held power-tool device includes at least one coupling device, which has at least one contact receiving region, and which is configured to couple an optional additional module to at least one energy supply unit, in at least one operating state. The at least one contact receiving region has (i) at least one receiving opening configured to receive a corresponding contact element of the optional additional module, and (ii) at least one dirt removal opening.

Abstract: A method for treating a surface of inorganic flooring (e.g., concrete, terrazzo, or a ceramic) includes applying a composition that includes a silicate to a surface of the inorganic flooring and, while the composition is present on the surface, polishing the surface. The silicate may be a lithium polysilicate and/or a colloidal silica. The composition may further include a surfactant and/or a leveling agent. When the composition is applied to the surface of the inorganic flooring, gravity may enable it to spread substantially evenly across the surface. The acts of applying and polishing may be repeated. Such a treatment may result in a surface that has a glossiness that reflects at least about 80% of incident light when the incident light is directed toward the composition at an angle of 60° to the surface.

Abstract: A machine tool of high-frequency vibration is provided. A main shaft structure of the machine tool comprises a rotating shaft, the end of which is provided with a tool holder chuck for fixing a tool holder; the upper portion of which is provided with a rotating coil portion; the main shaft structure is correspondingly provided with a stationary coil portion; and the tool holder is provided with a high-frequency vibration module. By non-contact coils, an external electric power/signal can be transmitted into the high-frequency vibration module to avoid a wear phenomenon in a contact-rotating electrode. Because the inductive coil is arranged outside of the tool holder, the manufacturing cost of the tool holder is reduced, and the convenience of changing the tool holder is increased. Moreover, the machining stability and efficiency of the tool holder are improved by a control method of sensing/feedback signals with wireless transmission.

Abstract: The invention provides a cloth taking-up device including: a platform, on which glue/cloth to be taken-up are disposed; and a clamp part movable with respect to the platform, which can clamp a roller and roll the glue/cloth to be taken-up successively onto the roller. An outside surface of the platform has an included angle of 0°-180° with respect to the horizontal plane, on which the glue/cloth to be taken-up are disposed, and the clamp part can keep the roller in parallel with the outside surface. The cloth taking-up device can avoid uneven pressure applied to the glue/cloth to be taken-up in the down-press manner, improving uniformity of taken-up glue/cloth. Meanwhile, the foreign matters on the glue/cloth to be taken-up can easily fall off, and the foreign matters on the rollers cannot drop onto the glue/cloth to be taken-up with the rotation, thereby ensuring glue/cloth taking-up quality.

Abstract: A method of forming a recess in a surface of a substrate includes: providing an abrasive article comprising a structured abrasive member disposed along a peripheral surface of a support member, frictionally contacting the structured abrasive layer with a surface of a substrate, longitudinally advancing the structured abrasive layer relative to the surface of the substrate; and rotating at least one of the abrasive article or the substrate relative to the other around a rotational axis perpendicular to the surface of the substrate such that the structured abrasive layer maintains contact with and abrades the surface of the substrate. The structured abrasive member comprises a structured abrasive layer comprising shaped abrasive composites secured to a backing, wherein the backing is proximate to the support member. The shaped abrasive composites comprise abrasive particles retained in a binder material.

Abstract: A finishing device includes a finishing tool having a grinding face and a finishing-tool holder configured to hold the finishing tool. The finishing-tool holder is movably guided on a pivot support which is pivotable about a pivot axis. A force-generating apparatus is configured to generate a pressing force, by means of which the grinding face of the finishing tool is pressed against a workpiece to be machined. The force-generating apparatus is arranged on a mounting apparatus for pivotally mounting the pivot support. A force-transmitting apparatus is configured to transmit the pressing force from the force-generating apparatus to the finishing-tool holder.

Abstract: A method of polishing a substrate is disclosed. The method includes irradiating the substrate with light; measuring intensity of the reflected light; producing spectral waveform representing relationship between relative reflectance and wavelength of the light; performing a Fourier transform process on the spectral waveform to determine a thickness of the film and a corresponding strength of frequency component; determining whether the determined thickness of the film is reliable or not by comparing the strength of frequency component with a threshold value; calculating a defective data rate representing a proportion of the number of unreliable measured values to the total number of measured values; and changing the threshold value based on the defective data rate.

Abstract: Hard-material, flat-surfaced workpieces such as semiconductor wafers or sapphire disks are attached with vacuum to the flexible elastomeric membrane of a rotatable wafer carrier that allows one surface of the workpiece to be in conformal abrading contact with a moving flat-surfaced abrasive. The elastomeric membrane external wafer attachment surface has a pattern of recessed vacuum grooves where vacuum supplied to the grooves firmly attach the rigid-material silicon wafer in flat-surfaced contact with the membrane. The attached wafer seals the vacuum grooves. A flexible thin metal annular membrane support disk is attached to the membrane within an abrading-pressure chamber where attached drive pins engage matching holes in the wafer carrier provide rotational torque to the wafer and restrain it laterally against abrading forces. Wafer polishing pressure is applied uniformly over the wafer surface. The rotating wafer peripheral edge does not contact a rigid retaining ring during a wafer polishing procedure.

Abstract: In accordance with an embodiment, a polishing method includes supplying slurry to a surface of a polishing layer including a polymer, and bringing a polishing object into contact with the polishing layer to polish the polishing object. The polishing layer has a fibrous first substance mixed therein or contains a second substance. The second substance is higher in specific heat and higher in thermal conductivity than the polymer in such a manner that the second substance is surrounded by the polymer.

Abstract: A chemical mechanical polishing machine includes a polishing head assembly including a polishing head body and a membrane disposed at a bottom of the polishing head body. The bottom surface of the membrane includes a hydrophobic area and a hydrophilic area.

Abstract: A method of controlling polishing includes polishing a substrate and receiving an identification of a selected spectral feature, a wavelength range having a width, and a characteristic of the selected spectral feature to monitor during polishing. A sequence of spectra of light from the substrate is measured while the substrate is being polished. A sequence of values of the characteristic of the selected spectral feature is generated from the sequence of spectra. For at least some spectra from the sequence of spectra, a modified wavelength range is generated based on a position of the spectral feature within a previous wavelength range used for a previous spectrum in the sequence of spectra, the modified wavelength range is searched for the selected spectral feature, and a value of a characteristic of the selected spectral feature is determined.

Abstract: The abrasive nozzle head includes, within a hollow head body mounted to a nozzle adapter supplying high pressure water: a water nozzle; a mixing chamber; and an abrasive nozzle, which are arranged coaxially with the nozzle adapter. The abrasive nozzle head is provided with an abrasive supply portion that supplies an abrasive to the mixing chamber. The head body has a recessed hole formed by drilling from a side surface, the recessed hole intersecting with the jet axis of a water jet. A mixer member is removably inserted into the recessed hole, and formed with the mixing chamber and an abrasive supply port. The abrasive nozzle head also includes: a positioning portion that positions the mixing chamber coaxially with the water nozzle and the abrasive nozzle when the mixer member is fully inserted; and a fixing portion that releasably fixes the mixer member in the fully inserted position.

Abstract: The present invention provides a system and method for wirelessly controlling a water jet machine by way of a wireless connection between the water jet machine and a computing device. The computing device provides an interface for controlling the operating device either directly to the water jet machine or via a control unit which is removably connected to the water jet machine. The water jet machine or control unit communicates wirelessly with the computing device, allowing a user to move about freely while still controlling the water jet machine. The control unit may include at least one valve for use in controlling the operating device.

Abstract: An abrasive article includes a body having abrasive grains contained within a bond material comprising a metal or metal alloy, wherein the body comprises a ratio of VAG/VBM of at least about 1.3, wherein VAG is the volume percent of abrasive grains within the total volume of the body and VBM is the volume percent of bond material within the total volume of the body.

Abstract: A mixture for fabricating a cutting table, the cutting table, and a method of fabricating the cutting table. The mixture includes a cutting table powder and a binder. The binder includes at least one carbide formed from an element selected from at least one of Groups IV, V, and VI of the Periodic Table. The carbide is in its nonstoichiometric and/or stoichiometric form. The binder can include the element. In certain embodiments, the binder includes one or more of the cutting table powder and a catalyst. The cutting table is formed by sintering the mixture using a solid phase sintering process or a near solid phase sintering process. When forming or coupling the cutting table to a substrate, a divider is positioned and coupled therebetween to ensure that the sintering process that forms the cutting table occurs using the solid phase sintering process or the near solid phase sintering process.

Abstract: Processes for pre-sharpening cutting structures comprising particles of superabrasive material such as diamond grit, dispersed in a metal matrix material such as cemented tungsten carbide. Matrix material may be removed from a surface of a cutting structure to a desired depth to expose superabrasive particles within the matrix material adjacent the surface, and to increase exposure of partially exposed superabrasive particles at the surface. Electrodischarge machining (EDM), laser machining, electrolytic etching and chemical etching may also be employed. Pre-sharpened cutting structures are also disclosed.

Abstract: A grinding apparatus has a spindle, a first wheel mount fixed to the lower end of the spindle, and a first grinding wheel mounted on the first wheel mount. The first grinding wheel has a first base and first abrasive members arranged annularly along the outer circumference of the first base in the form of a ring. A second wheel mount inside the first wheel mount is vertically movable. A second grinding wheel is mounted on the second wheel mount in concentric relationship with the first grinding wheel. The second grinding wheel includes a second base having an outer diameter smaller than the inner diameter of the ring formed by the first abrasive members. A plurality of second abrasive members are arranged annularly along the outer circumference of the second base in the form of a ring. The second wheel mount moves forward and away from a chuck table.

Abstract: An adapter according to one aspect is an adapter for fixing to a shaft of a grinding machine a grinding wheel having a through-hole where the shaft is inserted. The adapter is provided with a main body having at least a portion thereof inserted into the through-hole, the main body including an outer wall that contacts a wall of the through-hole and an inner wall that forms an opening that corresponds to the shaft, and a plurality of reinforcing parts provided in predetermined intervals along a circumferential direction of the main body. Each reinforcing part extends from the inner wall to the outer wall, and a notch is formed in each reinforcing part.

Abstract: A pin clamp assembly has a housing, an actuating device and a movable locating pin. A clamping device is coupled with the actuating device to move within the locator pin. The clamping device includes a rod and a finger. The finger extends and retracts in and out of the locating pin to enable the locating pin and clamping device to be moved so that the clamping finger clamps a workpiece.

Abstract: A clamp apparatus including first and second clamp arms, which are supported rotatably on a body, with a cover being installed to cover outer sides of the body. The cover includes openings through which portions of the first and second clamp arms are inserted and rotatably operated. An unloading tray is arranged in the body at a position below the openings in the direction of gravity. Spatter, which invades into the clamp apparatus from the openings when a welding operation is carried out on a workpiece that is clamped by the first and second clamp arms, is deposited on the unloading tray, and the spatter is eliminated by taking out the unloading tray to the exterior of the clamp apparatus.