A weld wheel cleaning system is provided to clean or remove a layer of embedded material and other debris produced from welding from the working surface of a weld wheel. Such a weld wheel cleaning system includes a cleaner with an abrasive material positioned on an outer surface of the cleaner. The cleaner is positionable adjacent to the weld wheel such that the abrasive material is aligned with the working surface of the weld wheel. An actuator can be used to selectively actuate the cleaner with a force sufficient to remove the layer of embedded material from the working surface of the weld wheel with the abrasive material. The debris from the cleaner can be removed by a vacuum.

A removal device of a welding electrode tip includes a first insertion piece and a second insertion piece that are inserted into a space formed between an end surface of a large diameter portion of a shank and an end surface of the welding electrode tip, each of the first insertion piece and the second insertion piece having a wedge shape having a thickness that increases from a front end to a back portion in an insertion direction, wherein the first insertion piece and the second insertion piece have a thickness by overlap of the first insertion piece and the second insertion piece, and the thickness changes from a thickness smaller than a length of the space to a thickness larger than the length of the space according to an overlap amount in the space.

Rivet dispenser reloading systems and methods of use thereof are provided. A non-limiting embodiment of a rivet dispenser reloading system comprises a receiving member defining a channel therein, and a first gate. The rivet receiving member comprises a first port and a second port that communicate with the channel. The first port is configured to receive rivets. The second port is configured to selectively engage with a rivet dispenser and introduce rivets to the rivet dispenser. The channel extends between the first port and the second port and is configured to transport rivets from the first port to the second port in a series arrangement and in a preselected orientation. The first gate is in communication with the second port and is selectively positionable between a first configuration inhibiting movement of rivets through the second port, and a second configuration enabling movement of rivets through the second port.

An electrode-misalignment detection device in a resistance welder that joins members together by holding them between opposing electrodes and applying pressure and electricity thereto includes an electrode misalignment detector that simultaneously approaches outer peripheries of both electrodes to detect misalignment thereof. The electrode misalignment detector includes a clamping member, a signal generator, a non-closed-state detector, and a misalignment determiner. The clamping member is movable toward the electrodes to clamp them from opposite radially outer sides and is settable in a predetermined closed state when the electrodes are located at appropriate positions. The signal generator outputs a movement state signal according to a movement state of the clamping member. The non-closed-state detector detects that the clamping member is in a state other than the predetermined closed state based on the movement state signal. The misalignment determiner determines electrode misalignment if the clamping member is not in the predetermined closed state.

A chip scattering prevention cover (1) is attached to a head portion (6b) of a rotary cutter (6). The cover (1) includes an annular portion (1a) configured to be detachably fitted over an outer peripheral edge of the head portion (6b), and a plate portion (1b) extending inwardly of the annular portion (1a) from an inner circumference portion of the annular portion (1a). The plate portion (1b) is configured to cover a region of a cutout gap (6e) of the rotary cutter (6) corresponding to the head portion (6b) with the annular portion (1a) being fitted over the head portion (6b). The annular portion (1a) and the plate portion (1b) are flush with a surface of the head portion (6b) when the annular portion (1a) is fitted over the head portion (6b).

An example diagnosis system determines a state of a target device that includes a work apparatus. The diagnosis system includes circuitry that is configured to acquire first data generated in response to operating the work apparatus at a first pressure, configured to acquire second data generated in response to operating the work apparatus at a second pressure, configured to calculate a feature quantity indicating a relation between the first data and the second data, and configured to determine the state of the target device based on the feature quantity.

A tip dresser cutter including a circumferential portion having a circular shape rotatable about an axis of rotation, a center portion located radially inward from the circumferential portion proximate the axis of rotation, and a cutting flute extending radially between the center portion and the circumferential portion. The cutting flute including a leading edge, a trailing edge, a radially inward canted surface extending between the leading edge and the trailing edge. The radially inward canted surface includes a first section extending between the center portion and a first location on the cutting flute and a second section extending between the first location on the cutting flute and a second location on the cutting flute. The second section of the radially inward canted surface including a curved portion that is parallel to a plane of rotation of the cutting flute.

A system and method apparatus for purging liquid coolant from liquid coolant lines providing cooling to welding electrodes in a welding apparatus. The system provides a purging fluid of air at a pressure higher than a pressure of the liquid coolant to be purged. High-pressure air is generated by a centralized compressor and distribution system, a local electric pump, or existing robotic arm movements applied to pump bellows mounted thereon. A variety of placements, tie-ins, and hardware for fluid purging line(s) and its valve(s), for coolant supply(ies) and its valve(s), for coolant return(s) and its valve(s), and for liquid coolant line(s) and its valve(s) allow individual liquid coolant lines to be purged independently, with trade-offs of speed to purge, thoroughness of purge, amount of liquid coolant needed to be purged.

A weld wheel cleaning system is provided to clean or remove a layer of embedded material and other debris produced from welding from the working surface of a weld wheel. Such a weld wheel cleaning system includes a cleaner with an abrasive material positioned on an outer surface of the cleaner. The cleaner is positionable adjacent to the weld wheel such that the abrasive material is aligned with the working surface of the weld wheel. An actuator can be used to selectively actuate the cleaner with a force sufficient to remove the layer of embedded material from the working surface of the weld wheel with the abrasive material. The debris from the cleaner can be removed by a vacuum.

A system for electrode dressing including a cutter with a rim and a center land supported on the rim by a number of flutes defining openings between the flutes. The flutes and the center land define a cutting profile of the cutter. The cutter is configured to rotate about an axis passing through the center land. Cutting edges are disposed on the flutes and are made of a first material having a Vickers hardness (HV) of at least 850 HV, overlaid by a second material having a Vickers hardness of at least 3200 HV. The cutter profile comprises a face cutting profile extending radially outward from the axis that is disposed at an angle of less than six-degrees relative to a radial normal of the cutter.