13results about "Cooled electrodes" patented technology

A first electrode coolant path is configured to cool a first welding electrode by liquid coolant flowing from a supply path through the first electrode coolant path to a return path. A second electrode coolant path is configured to cool a second welding electrode by liquid coolant flowing from the supply path through the second electrode coolant path to the return path. Three or more valves are configured to stop or reduce liquid coolant flow through the first or second electrode coolant path and configured to stop or reduce liquid coolant backflow from the return path when the first or second welding electrode is at least partially detached. At least one valve is coupled in the first or second electrode coolant path. A drawback apparatus generates a suction force to draw liquid coolant away from a gap formed when the first or second welding electrode is at least partially detached.

A first electrode coolant path is configured to cool a first welding electrode by liquid coolant flowing from a supply path through the first electrode coolant path to a return path. A second electrode coolant path is configured to cool a second welding electrode by liquid coolant flowing from the supply path through the second electrode coolant path to the return path. Three or more valves are configured to stop or reduce liquid coolant flow through the first or second electrode coolant path and configured to stop or reduce liquid coolant backflow from the return path when the first or second welding electrode is at least partially detached. At least one valve is coupled in the first or second electrode coolant path. A drawback apparatus generates a suction force to draw liquid coolant away from a gap formed when the first or second welding electrode is at least partially detached.

The electrode of the resistance spot welding apparatus includes a base portion, a tip portion, and a tapered portion located between and connecting the base portion and the tip portion. A cooling channel is formed inside the electrode to deliver a cooling fluid flow therethrough. The cooling channel includes at least one channel bend, wherein the cooling channel bends 180 degrees between the channel inlet and the channel outlet.

An electrode of a resistance spot welding apparatus includes a base portion, a tip portion and a tapered portion positioned between and connecting the base portion and the tip portion. A cooling channel is formed internal to the electrode to convey a flow of cooling fluid therethrough. The cooling channel includes at least one channel turn portion where the cooling channel turns 180 degrees between a channel inlet and a channel outlet.

An electrode of a resistance spot welding machine comprises a base section, a tip section, and a tapered section that connects the base and tip sections. A cooling channel is formed inside the electrode through which a current of cooling fluid flows. The cooling channel includes at least one channel bend where the cooling channel bends by 180 degrees between a channel inlet and a channel outlet.

The present invention relates to a resistance welding system for nut control; the resistance welding system uses a resistance welding method in the process of welding nuts to metal sheets; detects the situations of the parameters are in or out of tolerance values that the parameter can be nut lengths, nut inner diameter differences and acceptability of welding seam riser heights, by makes control them at the welding process and gives warning according to situation; enables automatic control to different types of nuts on a component in processes where multiple nuts are welded onto one component by maintaining a recipeable and sequential welding process via calling registered welding properties for the corresponding nut; it also relates to a resistance welding nut control system that prevents the operator from taking the wrong nut and loading it into the machine.

Welding electrodes, methods, and vehicles are provided. The welding electrodes include a body that includes a weld face on a distal end of the body configured to contact a workpiece and apply an electrical current thereto. The body has a maximum diameter of 13 millimeters or less. The welding electrode includes an insulative material covering at least a portion of the body, the insulative material configured to mitigate current shunting upon contact between the insulative material and a workpiece of a workpiece stack-up while using the welding electrode to resistance weld the workpiece stack-up.

The invention relates to a device (25) for supplying a coolant, in particular water, to a machining device (2), such as a welding device or a welding robot, the machining device (2) having at least two regions or tools (16a, 16b) intended to be cooled, such as weld caps, wherein the areas or tools (16a, 16b) intended to be cooled are contained in an open or closed coolant circuit having a supply side (20) and a return side (21), where the vacuum generating unit is located in the return side (21), and where each area or tool (16a, 16b) to be cooled has a supply side inlet (18a, 18b) and a return side outlet (19a, 19b); wherein valves (22a, 22b, 22c, 22d) are arranged upstream of each supply-side inlet (18a, 18b) and downstream of each return-side outlet (19a, 19b) of the region or tool (16a, 16b) to be cooled. The invention also relates to a cooling water system comprising such a device (5) for supplying coolant, a coolant supply line, a coolant return line, a coolant supply valve, a coolant return valve, a signal transmitter and a vacuum generating unit.

The present invention provides a low-voltage, high-current, lightweight spot welding machine, comprising a housing and a welding power source including a first electrode and a second electrode, each of which is partially protruding from the housing, a movable arm structure including a movable arm and a flanged nut, one end of the movable arm is connected to the flanged nut, a connection block is disposed between the first conductive bridge and the second conductive bridge, and a driving device, a driving rod of the driving device is connected to the flanged nut and located at the bottom of the housing, a fixed arm is connected to the movable arm through a side connection plate, the side connection plate is fixedly connected to the fixed arm and the connection block through a number of fixing bolts, and the side connection plate is rotatably connected to the flange structure, wherein the side connection plate connects the movable arm structure, the connection block, the driving device and the fixed arm to form a force connection mechanism for the welding tongs of the spot welding machine, which is integrally attached to the welding power source. The present invention makes the structure of the movable arm and the fixed arm compact, realizes the miniaturization of the welding tongs, and facilitates the removal of the welding tongs from the welding power source, and allows for quick switching between two types of welding tongs.

A low-voltage high-current light-weight spot welding machine includes a welding power supply device, wherein the welding power supply device includes a casing, a first electrode and a second electrode; a movable arm assembly, including a movable arm and at least one nut flange, wherein an end of the movable arm is connected with the at least one nut flange; at least one connection block, provided in between the first conductivity block and the first electrode; a drive assembly, wherein a drive rod of the drive assembly is connected with the at least one nut flange, the drive rod is located on the casing; a static arm, wherein the static arm is connected with the second electrode via a second conductivity bridge, and the lateral connection plates are rotatably connected at the at least one flange structure.

The invention relates to a device for supplying coolant (25) to a processing device (2) to be supplied with fluid coolant, in particular water, for example a welding device or a welding robot, wherein the processing device (2) has at least two regions to be cooled or tools to be cooled (16a, 16b), for example welding caps, wherein the regions to be cooled or the tools to be cooled (16a, 16b) are integrated into an open or closed coolant circuit having a supply side (20) and a return side (21), wherein a vacuum-generating unit is located in the return side and wherein the regions to be cooled or the tools to be cooled (16a, 16b) each have a supply side inlet (18a, 18b) and a return side outlet (19a, 19b), wherein a valve (22a, 22b, 22c, 22d) is arranged upstream of each supply side inlet (18a, 18b) and downstream of each return side outlet (19a, 19b) of the regions to be cooled or tools to be cooled (16a, 16b). The invention also relates to a cooling water system comprising: such a device for supplying coolant (5); a coolant supply line; a coolant return line; a coolant supply valve; a coolant return valve; a signal transmitter; and a vacuum-generating unit.

The invention relates to the technical field of electrode assemblies, and discloses a welding electrode assembly which comprises an electrode holding rod, and the left side and the right side of the electrode holding rod are fixedly connected with electrode plates. The blowing part comprises an inlet pipe fixedly connected to the top of the electrode holding rod, a connecting sleeve is fixedly connected to the top of the inner wall of the electrode holding rod and communicates with the inlet pipe, a connecting plate is fixedly connected to the bottom of the connecting sleeve, a connecting pipe is fixedly connected to the surface of the connecting sleeve, and a connecting ring is fixedly connected to the surface of the connecting pipe; the surface of the connecting ring is fixedly connected with an air blowing pipe. The blowing component is arranged, compressed air is pumped into the inlet pipe through the air compressor, the compressed air enters the connecting pipe from the connecting sleeve, then enters the annular plate from the moving pipe and is blown out from the air outlet holes, and welding slag on the nut can be cleaned through the blowing component.

An apparatus for cooling-water extraction for a robot installation plate is characterized by an adjustable extraction volume. The extraction volume is achieved by a sufficiently large extraction cylinder which has a maximum extraction volume, wherein the extraction volume is adjusted by a mechanical stroke limit of a piston located in the extraction cylinder. In at least one embodiment, the mechanical stroke limit is realized by an adjustment screw that is on or in the extraction cylinder. The adjustment screw forms a stop that provides an end position limit or stroke limit of the piston.