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CN-121988960-A - High-efficiency flying welding positioning device and positioning method

CN121988960ACN 121988960 ACN121988960 ACN 121988960ACN-121988960-A

Abstract

The application relates to a high-efficiency flying welding positioning device and a positioning method, wherein the positioning device comprises a frame, a left truss and a right truss are arranged on the frame, two ends of the left truss or two ends of the right truss move along the length direction of the frame, two copper nozzle pressing mechanisms are respectively arranged on the left truss and the right truss, each copper nozzle pressing mechanism comprises a mounting frame, the mounting frame comprises a sliding plate, a lifting plate and a mounting plate, the sliding plates of two adjacent copper nozzle pressing mechanisms are simultaneously mounted on one supporting beam, the supporting beam moves along the length direction of the frame through a large-stroke moving mechanism, lifting cylinders are arranged on the sliding plate and fixed on the sliding plate, an output shaft of each lifting cylinder is connected with the lifting plate, the mounting plate is mounted at the bottom of the lifting plate, two rows of copper nozzle pressing mechanisms are arranged on the mounting plate, and the copper nozzle pressing mechanisms correspond to palladium pieces to be welded one by one. The application has the effects of simplifying mechanism configuration, saving production beats, improving production efficiency and improving welding precision.

Inventors

  • WANG LIANG
  • YU ZHAOJIE
  • LI YINGJUN
  • Yin Juliang
  • YU DINGSHAN

Assignees

  • 常州孟腾智能装备有限公司

Dates

Publication Date
20260508
Application Date
20260331

Claims (10)

  1. 1. The high-efficiency flying welding positioning device is characterized by comprising a frame, wherein a left truss and a right truss are arranged on the frame, and both ends of the left truss or both ends of the right truss move along the length direction of the frame; Two sets of copper mouth pressing mechanisms are respectively arranged on the left truss and the right truss, and the front projection of the two sets of copper mouth pressing mechanisms of the left truss on the palladium sheet and the front projection of the two sets of copper mouth pressing mechanisms of the right truss on the palladium sheet can completely cover a row of palladium sheets to be welded; Each set of copper mouth compressing mechanism comprises a mounting frame, the mounting frame comprises a sliding plate, a lifting plate and a mounting plate, the sliding plates of two adjacent sets of copper mouth compressing mechanisms are simultaneously mounted on a supporting beam, the supporting beam moves along the length direction of a frame through a large-stroke moving mechanism, lifting electric cylinders are arranged on the sliding plate and fixedly mounted on the sliding plate through connecting frames, an output shaft of each lifting electric cylinder is connected with the lifting plate, the lifting electric cylinders drive the lifting plate to lift, the mounting plate is mounted at the bottom of the lifting plate, two rows of compressing copper mouths are arranged on the mounting plate, and the compressing copper mouths correspond to palladium sheets to be welded one by one.
  2. 2. The high-efficiency flying welding positioning device according to claim 1, wherein the large-stroke moving mechanism comprises a large-stroke motor, a large-stroke gear and a large-stroke rack, both ends of the supporting beam are provided with sliding frames, the large-stroke motor is fixedly arranged on the sliding frames, an output shaft of the large-stroke motor penetrates through the sliding frames from top to bottom and is rotationally connected with the sliding frames, the large-stroke gear is coaxially connected to the output shaft of the large-stroke motor, the large-stroke rack is fixedly arranged on the top surface of the frame, the length direction of the large-stroke rack is consistent with the length direction of the frame, and the large-stroke gear is meshed with the large-stroke rack; The large-stroke motor drives the large-stroke gear to rotate, the large-stroke gear moves along the length direction of the large-stroke rack, the sliding frame moves along the length direction of the large-stroke rack, and the supporting beam moves along the length direction of the rack with the corresponding left truss or right truss.
  3. 3. The high efficiency flying welding positioning device as set forth in claim 1, wherein the sliding plate is moved in the length direction of the support beam by a small stroke adjusting mechanism on the corresponding support beam.
  4. 4. The high-efficiency flying welding positioning device according to claim 3, wherein the small stroke adjusting mechanism comprises a small stroke motor and small stroke gears, the small stroke motor is fixedly arranged on the sliding plate through a fixed bracket, the small stroke gears are coaxially connected to an output shaft of the small stroke motor, a small stroke rack is fixedly arranged on the top surface of each supporting beam, the length direction of the small stroke rack is consistent with the length direction of the supporting beam, and two small stroke gears corresponding to two adjacent copper nozzle pressing mechanisms are meshed with one small stroke rack at the same time; The small stroke motor drives the small stroke gear to rotate, and the small stroke gear moves along the length direction of the small stroke rack, so that the sliding plate moves along the length direction of the small stroke rack.
  5. 5. The high-efficiency flying welding positioning device according to claim 1, wherein the mounting plate is provided with a mounting block for mounting the compression copper nozzle, the mounting block is connected to the bottom surface of the mounting plate through a connecting spring, the top end of the connecting spring is fixedly connected with the mounting plate, the bottom end of the connecting spring is fixedly connected with the mounting block, the mounting block is provided with a mounting hole for mounting the compression copper nozzle, the mounting plate is provided with a containing hole for containing the compression copper nozzle, and the mounting hole is communicated with the containing hole; The bottom surface of every installation piece all is equipped with miniature camera, and miniature camera shoots the position that corresponds the palladium piece and feeds back to control system.
  6. 6. The high-efficiency flying welding positioning device according to claim 5, wherein the circumferential side wall of the compression copper nozzle is coaxially connected with an anti-falling ring, the inner circumferential wall of the mounting hole is provided with a movable circular groove for the anti-falling ring to move, the diameter of the movable circular groove is larger than the outer diameter of the anti-falling ring, the diameter of the mounting hole is larger than the outer diameter of the compression copper nozzle, and the outer diameter of the protection circular ring is larger than the diameter of the mounting hole; the top surface of the mounting block is provided with a first adjusting air tap and a second adjusting air tap, the first adjusting air tap and the second adjusting air tap are symmetrically arranged on two radial sides of the compression copper tap, and air outlets of the first adjusting air tap and the second adjusting air tap face the compression copper tap; the regulating air tap I is externally connected with an air source I, the air source I pumps normal pressure air to the regulating air tap I through an air pump, the normal pressure air is blown to the compression copper tap through the regulating air tap I, the air pump I is arranged on the lifting plate, the air pump I is connected with a plurality of regulating air tap I through a shunt row I and a shunt pipe I, the total air inlet end of the shunt row I is connected with the air outlet end of the air pump I, the air outlet end of the shunt row I is corresponding to and connected with the shunt pipe I and the regulating air tap I, a flow valve I is arranged on each shunt pipe I, and the flow valve I controls the air flow in the shunt pipe I; The second external air source of regulation air cock, air source two pumps normal pressure gas through the air pump to the second regulation air cock, the normal pressure gas rethread adjusts the second air cock and blows to compressing tightly the copper mouth, air pump two is installed on the lifter plate, air pump two is connected with a plurality of regulation air cock through reposition of redundant personnel row two and shunt tubes, the total inlet end of reposition of redundant personnel row two is connected with the end of giving vent to anger of air pump two, the branch outlet end of reposition of redundant personnel row two corresponds and is connected with shunt tubes two with adjusting air cock, set up a flow valve two on every shunt tubes, the gas flow in the shunt tubes two is controlled to flow valve two.
  7. 7. The high-efficiency flying welding positioning device according to claim 6, wherein the top of the compression copper nozzle is provided with a sealing cover plate, an air inlet pipe is arranged on the sealing cover plate at a position close to the side edge of the sealing cover plate, the bottom end of the air inlet pipe stretches into the compression copper nozzle, and the bottom end of the air inlet pipe is at a certain distance from the bottom end of the compression copper nozzle; the air inlet pipe is externally connected with an air source III, the air source III pumps normal pressure air through an air pump three-way, the normal pressure air is blown into the compression copper nozzle through the air inlet pipe, the air pump III is arranged on the lifting plate, the air pump III is connected with a plurality of air inlet pipes through a shunt valve III and a shunt pipe III, the total air inlet end of the shunt valve III is connected with the air outlet end of the air pump III, and the air outlet end of the shunt valve III corresponds to and is connected with the shunt pipe III; The air inlet pipe is provided with an air pressure sensor which is used for detecting the air pressure inside the compression copper nozzle and feeding the air pressure back to the control system; When the air pressure sensor detects that the air pressure value is lower than the set value, the copper nozzle and the palladium sheet are not completely aligned, at the moment, the first flow valve on the first air nozzle is adjusted to enable the air flow capacity in the pipeline to be increased, the second flow valve on the second air nozzle is adjusted to enable the air flow capacity in the pipeline to be reduced, if the air pressure value continues to be lowered, the first flow valve on the first air nozzle is adjusted to enable the air flow capacity in the pipeline to be reduced, and the second flow valve on the second air nozzle is adjusted to enable the air flow capacity in the pipeline to be increased until the air pressure value reaches the set range.
  8. 8. The high-efficiency flying welding positioning device according to claim 7, wherein the high-pressure jet assembly comprises a high-pressure nozzle and a guide block, the high-pressure nozzle is externally connected with a gas source IV, the gas source IV pumps high-pressure gas through the high-pressure nozzle in a four-way mode, a guide channel is formed in the guide block, the guide channel is obliquely arranged, the lowest end of the guide channel is connected with the gas outlet end of the high-pressure nozzle, the highest end of the guide channel is closer to the sealing cover plate than the lowest end, a communication hole communicated with the guide channel is formed in the side wall of the compression copper nozzle, and the high-pressure gas blows to the guide channel through the high-pressure nozzle and impacts the sealing cover plate along the guide channel, so that the sealing cover plate is opened; The air pump IV is arranged on the lifting plate, the air pump IV is connected with the plurality of high-pressure nozzles through a shunt row IV and a shunt pipe IV, the total air inlet end of the shunt row IV is connected with the air outlet end of the air pump IV, the air outlet end of the shunt row IV corresponds to and is connected with the shunt pipe IV and the high-pressure nozzles, each shunt pipe IV is provided with a pressurizing valve, and the pressurizing valve pressurizes the air before entering the high-pressure nozzles.
  9. 9. A high efficiency flying welding positioning method, using the flying welding positioning device of any one of claims 1-8, comprising the steps of: S1, regarding the position of a leftmost row of battery core electrode posts and palladium sheets as a first row of welding positions; When the welding robot initially welds, the left truss and the right truss move to a first row of welding positions at the same time, the two rows of compression copper nozzles of the left truss are aligned with the two rows of compression copper nozzles of the right truss and the corresponding palladium sheets, then the compression copper nozzles are adjusted to a proper position by a small-stroke adjusting mechanism through shooting and feedback of a miniature camera, and the welding robot is started to weld the battery core pole column and the palladium sheets at the first row of welding positions; when the battery cell pole column and the palladium sheet at the first row of welding positions are welded, the welding robot moves from the position of the left truss to the position of the right truss; S2, after the welding robot finishes welding half of the palladium sheets corresponding to the left truss at the first row of welding positions, the welding robot continues to weld half of the palladium sheets corresponding to the right truss at the same row of welding positions, namely half of the palladium sheets corresponding to the right truss at the first row of welding positions, and meanwhile, the left truss moves to the right by a distance of one palladium sheet interval so that the left compression copper nozzle of the left truss is aligned with the palladium sheet of the second row of welding positions; S3, when the welding robot finishes welding half of the palladium sheets corresponding to the right truss at the first row of welding positions, the welding robot continues to weld half of the palladium sheets corresponding to the right truss at the next row of welding positions, namely, half of the palladium sheets corresponding to the right truss at the second row of welding positions; when the battery cell pole column and the palladium sheet at the second row of welding positions are welded, the welding robot moves from the position of the right truss to the position of the left truss; S4, after the welding robot finishes welding half of the palladium sheets corresponding to the right truss at the second row of welding positions, the welding robot continues to weld half of the palladium sheets corresponding to the left truss at the same row of welding positions, namely half of the palladium sheets corresponding to the left truss at the second row of welding positions, and meanwhile, the right truss moves to the right by a distance of two palladium sheets to align the left compression copper nozzles of the right truss with the palladium sheets of the third row of welding positions; s5, when the welding robot finishes welding half of the palladium sheets corresponding to the left truss at the second row of welding positions, the welding robot continues to weld half of the palladium sheets corresponding to the left truss at the next row of welding positions, namely, half of the palladium sheets corresponding to the left truss at the third row of welding positions; When the battery cell pole column and the palladium sheet at the third row of welding positions are welded, the welding robot moves from the position of the left truss to the position of the right truss; S6, after the welding robot finishes welding half of the palladium sheets corresponding to the left truss at the third welding position, the welding robot continues to weld half of the palladium sheets corresponding to the right truss at the same welding position, namely, the half of the palladium sheets corresponding to the right truss at the third welding position, and meanwhile, the left truss moves to the right by a distance of two palladium sheets to align the left compression copper mouth of the left truss with the palladium sheets of the fourth welding position; And from the second row of welding positions, after the welding robot finishes welding one half of palladium sheets corresponding to one side truss at a single row of welding positions, when the welding robot continues to weld one half of palladium sheets corresponding to the other side truss at the same row of welding positions, the truss at the right side just moves the interval between two palladium sheets, and the cycle is performed, so that the welding robot realizes continuous welding.
  10. 10. The high-efficiency flying welding positioning method of claim 9, wherein after the position of the compressed copper nozzle is adjusted by the small-stroke adjusting mechanism, normal-pressure gas is introduced into the air inlet pipe before the welding robot is started for welding, and the air pressure inside the compressed copper nozzle is detected by the air pressure sensor and fed back to the control system; When the air pressure sensor detects that the air pressure value is lower than the set value, the compressed copper nozzle and the palladium sheet are not completely aligned, at the moment, the first flow valve on the first air nozzle is adjusted to enable the air flow capacity in the pipeline to be increased, the second flow valve on the second air nozzle is adjusted to enable the air flow capacity in the pipeline to be reduced, if the air pressure value continues to be lower, the first flow valve on the first air nozzle is adjusted to enable the air flow capacity in the pipeline to be reduced, the second flow valve on the second air nozzle is adjusted to enable the air flow capacity in the pipeline to be increased until the air pressure value reaches the set range, and the compressed copper nozzle and the palladium sheet are completely aligned.

Description

High-efficiency flying welding positioning device and positioning method Technical Field The invention relates to the field of battery module assembly, in particular to a high-efficiency flying welding positioning device and a positioning method. Background In an automatic production line for assembling a battery module, welding of a palladium sheet and a battery core electrode post is one of core processes, and flying welding becomes a main stream process of the process due to high welding efficiency. The flying welding positioning device comprises a left truss and a right truss, wherein copper nozzle pressing mechanisms are arranged on the left truss and the right truss, and the copper nozzle pressing mechanisms press and position the palladium sheet and the battery cell pole. In the prior art, referring to fig. 1, copper mouth compressing mechanisms of a left truss and a right truss are arranged in a single-row copper mouth manner, the left truss is 4 sets of copper mouth compressing mechanisms, the right truss is 4 sets of copper mouth compressing mechanisms, 8 sets of copper mouth compressing mechanisms are provided in total, each set of copper mouth compressing mechanisms is provided with a small stroke adjusting mechanism, 8 sets of small stroke adjusting mechanisms are required in total, and the mechanism configuration cost is high. After the palladium sheet and the battery cell polar columns are pressed and positioned by the positioning device, the right truss moves to the left truss to the middle in the flying welding process of the welding robot, the welding robot welds the left-most row of battery cell polar columns, the welding robot moves to the middle to weld the right truss positioned position, the left truss moves to the right at the moment, the welding robot welds the middle battery cells, and the welding robot moves to the left truss to weld according to the rule alternately and reciprocally. According to the positioning method and the welding process, after the welding robot finishes welding one row of battery cells, the welding robot needs to perform long-distance air operation to the welding position of the next row of battery cells, the production efficiency is low, and the production beat is seriously influenced. Therefore, there is a need for a flying welding positioning device and positioning method that can simplify the mechanism configuration, save the tact time, and improve the production efficiency. Disclosure of Invention In order to solve the technical problems, the application provides a high-efficiency flying welding positioning device and a positioning method. In a first aspect, the present application provides a high efficiency flying welding positioning device. The application provides a high-efficiency flying welding positioning device which adopts the following technical scheme: A high-efficiency flying welding positioning device comprises a frame, wherein a left truss and a right truss are arranged on the frame, and two ends of the left truss or two ends of the right truss move along the length direction of the frame; Two sets of copper mouth pressing mechanisms are respectively arranged on the left truss and the right truss, and the front projection of the two sets of copper mouth pressing mechanisms of the left truss on the palladium sheet and the front projection of the two sets of copper mouth pressing mechanisms of the right truss on the palladium sheet can completely cover a row of palladium sheets to be welded; Each set of copper mouth compressing mechanism comprises a mounting frame, the mounting frame comprises a sliding plate, a lifting plate and a mounting plate, the sliding plates of two adjacent sets of copper mouth compressing mechanisms are simultaneously mounted on a supporting beam, the supporting beam moves along the length direction of a frame through a large-stroke moving mechanism, lifting electric cylinders are arranged on the sliding plate and fixedly mounted on the sliding plate through connecting frames, an output shaft of each lifting electric cylinder is connected with the lifting plate, the lifting electric cylinders drive the lifting plate to lift, the mounting plate is mounted at the bottom of the lifting plate, two rows of compressing copper mouths are arranged on the mounting plate, and the compressing copper mouths correspond to palladium sheets to be welded one by one. Further, the large-stroke moving mechanism comprises a large-stroke motor, a large-stroke gear and a large-stroke rack, wherein sliding frames are arranged at two ends of the supporting beam, the large-stroke motor is fixedly arranged on the sliding frames, an output shaft of the large-stroke motor penetrates through the sliding frames from top to bottom and is rotationally connected with the sliding frames, the large-stroke gear is coaxially connected with the output shaft of the large-stroke motor, the large-stroke rack is fixedly arranged on the top surface of the ra