Laser welding tooling for preventing welding deviation

Abstract

The invention discloses a laser welding tool for preventing welding deviation, which relates to the field of laser welding technology, including a base, a bracket and a laser welding gun, wherein the top of the base is respectively fixed with a column and a bracket, and the top of the bracket is equipped with a laser welding gun. The laser welding tool for preventing welding deviation uses a driving mechanism, a feeding mechanism and a flipping mechanism in combination, drives the cylindrical battery cell of the battery to rotate through four driving wheels, guides the positive electrode cap out of the feeding channel through the feeding mechanism, and drives the positive electrode cap to be close to the positive terminal center of the cylindrical battery cell by squeezing and pushing the positioning ring through a telescopic rod, and the positioning ring assists the positive electrode cap to follow the rotation of the cylindrical battery cell through a plurality of groups of balls, so when the driving mechanism drives the cylindrical battery cell to rotate, the positive electrode cap will also rotate synchronously, and when the laser welding gun is started, the laser welding gun will emit a laser beam to uniformly weld the contact edge of the positive electrode cap and the cylindrical battery cell to prevent deviation during laser welding processing.

Description

Technical Field

[0001] The invention relates to the technical field of laser welding, in particular to a laser welding tool for preventing welding deviation. Background Art

[0002] Laser welding is an efficient and precise welding method that uses a high-energy-density laser beam as a heat source. Laser welding provides a high-energy-density heat source that enables deep welding and rapid molten pool formation, resulting in uniform, defect-free welds. This high-quality welding ensures that automotive batteries have sufficient stability and reliability during production. In the production of automotive batteries, laser welding tooling can be used to achieve rapid battery production.

[0003] According to a battery cap welding device with patent publication number CN210024179U, the battery cell is fixed by a battery cell fixing member, which can ensure the stability of the tab on the battery cell during the welding process and avoid the tab tilting;

[0004] The battery cell in this technical solution is stuck in the fixing part, and the cap is pushed to fit tightly against the battery cell's pole ear through the action of the cylinder's push rod. This still lacks positioning restrictions on the welding parts during welding, so the welding process still has the problem of offset welding. Therefore, we proposed a laser welding tool to prevent welding offset. Summary of the invention

[0005] The object of the present invention is to provide a laser welding tool for preventing welding deviation, so as to solve the problems raised by the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser welding tool for preventing welding deviation, comprising a base, a bracket and a laser welding gun, the top of the base is respectively fixed with a column and a bracket, the top of the column is provided with a flipping mechanism for supporting the workpiece, the top of the bracket is installed with a laser welding gun, the inner side of the bracket is welded with a reinforcing plate, the bracket is provided with a driving mechanism, the driving mechanism comprises a mounting plate fixed to the outer side of the bracket, the outer side of the mounting plate is installed with a driving motor, the middle part of the inner side of the mounting plate is provided with a driving gear connected to the output end of the driving motor, the inner side of the mounting plate is also connected with a transmission gear meshing with the driving gear, the central axis of the transmission gear is connected with a sliding tube a through a coupling, the interior of the sliding tube a is plugged with a sliding column a, and one end of the sliding column a is movably connected with the driving wheel through a coupling;

[0007] A limiting disk is fixed on the reinforcement plate, an adjusting disk is arranged on the upper side of the limiting disk, the driving wheel penetrates the inclined groove on the surface of the limiting disk and the arc groove on the surface of the adjusting disk at the same time, a tension spring is connected between the outer edge of the adjusting disk and the inner wall of the bracket, a telescopic rod is installed in the middle of the limiting disk, a positioning ring is fixed to the bottom end of the telescopic rod, a plurality of ball bearings are embedded in the inner wall edge of the positioning ring opening, an extrusion strip is fixed to the lower side of the outer wall of the telescopic rod, and a feeding mechanism is arranged on the lower side of the driving mechanism.

[0008] Preferably, the feeding mechanism includes a feeding trough welded to the lower edge of the reinforcement plate, the feeding trough consists of a straight trough and a curved trough, an inlet trough is fixed at one end of the curved trough of the feeding trough, a cylinder is installed on the side of the inlet trough, a push plate is fixed on the output rod of the cylinder, and the push plate is slidably inserted from the side of the inlet trough.

[0009] Preferably, a reserved hole is opened on the side wall of the curved channel of the feeding channel, and a rotating plate is connected to the reserved hole through a rotating shaft, a torsion spring is sleeved on the rotating shaft of the rotating plate, and a check block inserted into the curved channel is fixed on the end of the rotating plate away from the torsion spring.

[0010] Preferably, a guide opening is provided at the top of the straight channel of the feeding channel, a limit frame is slidably arranged in the guide opening, a guide rod is fixed at the bottom end of the limit frame, a support spring is sleeved on the outer side of the guide rod, a convex block is fixed on the surface of the feeding channel close to the guide opening, and the guide rod slides through the middle of the convex block;

[0011] A guide rail is fixed to the edge of one side of the top of the straight channel of the feeding channel away from the guide opening, and a rotating frame is rotatably connected to the middle of the guide rail, and the upper end of the rotating frame is in contact with the extrusion bar.

[0012] Preferably, the flipping mechanism includes a servo motor installed on the top of the column, a sliding tube b is fixed to the output end of the servo motor, a sliding column b is arranged on the inner side of the sliding tube b, the sliding column b is composed of a polygonal column rod and a cylindrical rod, the polygonal column rod of the sliding column b is slidably connected to the sliding tube b, a horizontal rod is slidably connected to the middle part of the column, a bevel gear a is movably connected to the end of the horizontal rod away from the column, the cylindrical rod of the sliding column b is connected to a vertical plate through a bearing sleeve, and the bottom end of the vertical plate is welded to the horizontal rod.

[0013] Preferably, a bevel gear b and a flip seat 1 are fixed on the cylindrical rod of the sliding column b respectively, and a bevel gear c is also sleeved on the outer side of the cylindrical rod of the sliding column b. The bevel gear c is a hollow structure, and one end of the bevel gear c is fixed to the flip seat 2.

[0014] Preferably, a docking sleeve is fixed to the end of the flip seat 2 away from the bevel gear c, and the cylindrical rod of the sliding column b is connected to the docking sleeve through a bearing. Trays are fixed on the plane sides of the flip seat 1 and the flip seat 2, and several groups of rollers are embedded and installed on the inner wall of the tray. A supporting ring is fixed to the open side of the tray.

[0015] Preferably, a transverse movement mechanism is arranged below the flipping mechanism, and the transverse movement mechanism includes a transverse rod and a tooth plate horizontally fixed on the lower side of the column, and the outer sliding sleeve of the transverse rod is provided with a vertical plate, and the upper side of the vertical plate is connected to the cylindrical rod of the sliding column b through a bearing, and the cylindrical rod of the sliding column b extends through the vertical plate and is fixed to the large toothed plate, and the outer edge of the large toothed plate is provided with a tooth surface and an arc strip, and the middle part of the vertical plate is rotatably connected to a worm, and one end of the worm is fixed with a small toothed plate arranged directly below the large toothed plate.

[0016] Preferably, a fixing frame is installed on the side of the vertical plate away from the small toothed plate, and the interior of one end of the fixing frame is connected with a transverse gear through a rotating shaft. A worm wheel connected to the worm is fixed on the side of the transverse gear, and the bottom of the transverse gear is meshingly connected to the toothed plate.

[0017] Preferably, a baffle is welded to the side edge of the base close to the column, a material storage rack is fixed to the inner side of the baffle, and a guide strip is welded to the upper edge of the baffle close to the material storage rack.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The laser welding tooling for preventing welding deviation uses a driving mechanism, a feeding mechanism and a flipping mechanism in combination. The cylindrical battery cell of the battery is driven to rotate by four driving wheels. The positive electrode cap is guided out of the feeding channel by the feeding mechanism, and the positive electrode cap is driven to be close to the positive terminal center of the cylindrical battery cell by squeezing and pushing the positioning ring by the telescopic rod. The positioning ring assists the positive electrode cap to rotate with the cylindrical battery cell through a plurality of groups of balls. Therefore, when the driving mechanism drives the cylindrical battery cell to rotate, the positive electrode cap will also rotate synchronously. When the laser welding gun is started, the laser welding gun will emit a laser beam to uniformly weld the contact edge of the positive electrode cap and the cylindrical battery cell to prevent deviation during laser welding processing.

[0020] 2. The laser welding tooling for preventing welding deviation uses a flip mechanism and a lateral movement mechanism in combination, and realizes intermittent alternating motion of 180° forward rotation and 180° reverse rotation through a servo motor, so as to ensure that the laser welding tooling can realize stable and reliable intermittent welding, so that the flip seat 1 and the flip seat 2 can drive the welded batteries and the unwelded batteries to rotate alternately, and can realize alternate clamping and exporting of the batteries, reduce the operation time of battery clamping and removal, save manpower auxiliary operation, and can realize rapid replacement of batteries to be welded, improve the processing efficiency of batteries during laser welding, and facilitate batch welding processing of batteries;

[0021] 3. The laser welding tooling for preventing welding deviation installs the positive cap of the battery into the inlet groove, and drives the push plate to squeeze the positive cap in the inlet groove and send it into the curved groove of the feeding groove by starting the cylinder. At the same time, the positive cap will squeeze the check block at the end of the rotating plate when moving. When the positive cap is pushed away from the contact with the check block by the push plate, the reverse reset of the torsion spring will drive the check block to rotate in the opposite direction, so that the positive cap can be prevented from moving back through the check block, ensuring that the feeding mechanism has an anti-backward function when conveying the positive cap. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the flipping mechanism of the present invention in the first-angle flipping state;

[0023] Figure 2 It is a schematic diagram of the three-dimensional structure of the flipping mechanism of the present invention in the second-angle flipping state;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the flipping mechanism of the present invention in the flipping state at a third angle;

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the flipping mechanism of the present invention in the fourth flipping state;

[0026] Figure 5 It is a schematic diagram of the first three-dimensional structure of the linkage of the support, the driving mechanism and the feeding mechanism of the present invention;

[0027] Figure 6 A second three-dimensional structural schematic diagram of the linkage of the support, the driving mechanism and the feeding mechanism of the present invention;

[0028] Figure 7 It is a first three-dimensional structural schematic diagram of the driving mechanism of the present invention;

[0029] Figure 8 is a second three-dimensional structural schematic diagram of the driving mechanism of the present invention;

[0030] Fig. 9 It is a first three-dimensional structural schematic diagram of the feeding mechanism of the present invention;

[0031] Fig.10 It is a second three-dimensional structural schematic diagram of the feeding mechanism of the present invention;

[0032] Fig.11 It is a schematic diagram of the three-dimensional structure of the rotating plate of the present invention;

[0033] Fig.12 It is a schematic diagram of the cutaway structure of the feeding channel of the present invention;

[0034] Fig.13 It is a schematic diagram of the three-dimensional structure of the feed chute and guide rail combination of the present invention;

[0035] Fig.14 A schematic diagram of a first three-dimensional structure of a telescopic rod and a limiting frame used in combination with the present invention;

[0036] Fig.15 A schematic diagram of a second three-dimensional structure of the telescopic rod and the limiting frame used in combination with the present invention;

[0037] Fig.16 It is a schematic diagram of a first three-dimensional structure of the linkage between the flipping mechanism and the transverse movement mechanism of the present invention;

[0038] Fig.17 It is a schematic diagram of a second three-dimensional structure of the linkage between the flipping mechanism and the transverse movement mechanism of the present invention;

[0039] Fig.18 It is a schematic diagram of a three-dimensional structure of a combination of a flip seat 1 and a flip seat 2 of the present invention;

[0040] Fig.19 It is a schematic diagram of the three-dimensional explosion structure of the flipping mechanism of the present invention;

[0041] Fig. 20 It is a schematic diagram of the three-dimensional structure of the laser welding gun welding process of the present invention.

[0042] In the figure: 1, base; 101, column; 2, bracket; 201, laser welding gun; 202, reinforcement plate; 3, driving mechanism; 301, mounting plate; 302, driving motor; 303, driving gear; 304, transmission gear; 305, slide tube a; 306, slide column a; 307, adjustment plate; 308, limit plate; 309, tension spring; 310, driving wheel; 311, telescopic rod; 312, positioning ring; 313, ball; 314, extrusion strip; 4, feeding mechanism; 401, feeding trough; 402, inlet trough; 403, cylinder; 404, push plate; 405, rotating plate; 406, torsion spring; 407, check block; 408, guide port; 409, limit frame; 41 0. Guide rod; 411. Support spring; 412. Guide rail; 413. Rotating frame; 5. Turning mechanism; 501. Servo motor; 502. Slide tube b; 503. Slide column b; 504. Horizontal rod; 505. Bevel gear a; 506. Bevel gear b; 507. Turning seat one; 508. Bevel gear c; 509. Turning seat two; 510. Docking sleeve; 511. Tray; 512. Supporting ring; 6. Transverse mechanism; 601. Crossbar; 602. Tooth plate; 603. Vertical plate; 604. Large toothed disc; 6041. Arc strip; 605. Small toothed disc; 606. Worm; 607. Fixed frame; 608. Worm wheel; 609. Transverse gear; 7. Baffle; 8. Storage rack; 9. Guide strip. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] See also Figure 1-Figure 8 , Fig.14 , Fig.15 and Fig. 20The present invention provides a technical solution: a laser welding tool for preventing welding deviation, comprising a base 1, a bracket 2 and a laser welding gun 201, a column 101 and a bracket 2 are respectively fixed on the top of the base 1, a flip mechanism 5 for supporting a workpiece is arranged on the top of the column 101, a laser welding gun 201 is installed on the top of the bracket 2, a reinforcing plate 202 is welded on the inner side of the bracket 2, a driving mechanism 3 is arranged on the bracket 2, and the driving mechanism 3 comprises a mounting plate 301 fixed on the outer side of the bracket 2, a driving motor 302 is installed on the outer side of the mounting plate 301, a driving gear 303 connected to the output end of the driving motor 302 is arranged in the middle of the inner side of the mounting plate 301, and a gear meshing with the driving gear 303 is also connected to the inner side of the mounting plate 301 Transmission gear 304, the central axis of the transmission gear 304 is connected to a slide tube a305 through a coupling, a slide column a306 is inserted inside the slide tube a305, one end of the slide column a306 is movably connected to the driving wheel 310 through a coupling, the size of the slide column a306 matches the internal size of the slide tube a305, and the slide column a306 and the slide tube a305 are slidingly telescopically connected, the cross section of the slide column a306 is a non-circular structure, and the cross section of the slide column a306 is set to a non-circular structure, when the driving wheel 310 adjusts its position in the inclined groove on the surface of the limit plate 308, it is convenient to drive the slide column a306 and the slide tube a305 to perform telescopic adjustment, and at the same time, it can ensure that the slide tube a305 can drive the slide column a306 to follow the rotation when rotating;

[0045] A limiting disk 308 is fixed on the reinforcement plate 202, and an adjusting disk 307 is arranged on the upper side of the limiting disk 308. The arc groove on the surface of the adjusting disk 307 and the center of the circle of the adjusting disk 307 are eccentrically designed. The driving wheel 310 penetrates the inclined groove on the surface of the limiting disk 308 and the arc groove on the surface of the adjusting disk 307 at the same time. A tension spring 309 is connected between the outer edge of the adjusting disk 307 and the inner wall of the bracket 2. A telescopic rod 311 is installed in the middle of the limiting disk 308, and a positioning ring 312 is fixed to the bottom end of the telescopic rod 311. A plurality of balls 313 are embedded in the inner wall edge of the opening of the positioning ring 312. The positioning ring 312 is a trumpet-shaped annular structure, so that the positioning ring 312 can clamp the protruding end of the positive cap. An extrusion strip 314 is fixed to the lower side of the outer wall of the telescopic rod 311, and a feeding mechanism 4 is arranged on the lower side of the driving mechanism 3.

[0046] In specific implementation, when the flip mechanism 5 drives the flip seat 1 507 or the flip seat 2 509 to clamp the positive end of the cylindrical battery cell between the four driving wheels 310, the four driving wheels 310 are clamped on the outer peripheral side of the cylindrical battery cell through the traction of the tension spring 309 on the adjusting disk 307. At this time, the driving motor 302 is started to drive the driving gear 303 to rotate, and the driving gear 303 is simultaneously engaged with four transmission gears 304 of the same specifications, so that the four transmission gears 304 rotate in the same direction and at the same speed, so that the rotating transmission gear 304 drives the driving wheel 310 to rotate through the retractable sliding slide tube a305 and the slide column a306, and then drives the cylindrical battery cell to rotate through the four driving wheels 310.

[0047] See also Figure 5 , Figure 6 , Figure 9-12 The feeding mechanism 4 includes a feeding channel 401 welded to the lower edge of the reinforcing plate 202. The feeding channel 401 is composed of a straight channel and a curved channel. An inlet channel 402 is fixed at one end of the curved channel of the feeding channel 401. A cylinder 403 is installed on the side of the inlet channel 402. A push plate 404 is fixed on the output rod of the cylinder 403. The push plate 404 is slidably inserted from the side of the inlet channel 402.

[0048] A reserved hole is provided on the side wall of the curved channel of the feeding channel 401, and a rotating plate 405 is connected to the reserved hole through a rotating shaft, a torsion spring 406 is sleeved on the rotating shaft of the rotating plate 405, and a check block 407 inserted into the curved channel is fixed at one end of the rotating plate 405 away from the torsion spring 406, and the check block 407 is a right-angled triangle structure.

[0049] During the specific implementation, the positive electrode cap of the battery is loaded into the inlet groove 402, and the push plate 404 is driven by the starting cylinder 403 to squeeze the positive electrode cap in the inlet groove 402 and send it into the curved groove of the feeding groove 401. At the same time, the positive electrode cap will squeeze the check block 407 at the end of the rotating plate 405 when moving, so that the inclined surface of the check block 407 can push the rotating plate 405 to rotate around the rotating axis when being squeezed, and the rotating plate 405 will squeeze the torsion spring 406 when rotating. When the positive electrode cap is sent by the push plate 404 to break away from the contact with the check block 407, the torsion spring 406 is reversed and reset to drive the check block 407 to rotate in the opposite direction, so that the positive electrode cap can be prevented from moving back through the check block 407, thereby ensuring that the feeding mechanism 4 has an anti-backward function when conveying the positive electrode cap.

[0050] See also Figure 1-Figure 4 , Figure 16-Figure 19The flip mechanism 5 includes a servo motor 501 installed on the top of the column 101, a slide tube b502 is fixed to the output end of the servo motor 501, a slide tube b502 is arranged on the inner side of the slide tube b502, and the slide tube b503 is composed of a polygonal column rod and a cylindrical rod. The polygonal column rod of the slide tube b503 is slidably connected with the slide tube b502. Through the sliding of the polygonal column rod of the slide tube b503 and the slide tube b502, it is ensured that the slide tube b503 and the slide tube b502 can also rotate synchronously when they slide and retract relatively. A horizontal rod 504 is slidably connected to the middle part of the column 101, and a bevel gear a505 is movably connected to the end of the horizontal rod 504 away from the column 101. The cylindrical rod of the slide tube b503 is connected with a vertical plate through a bearing sleeve, and the bottom end of the vertical plate is welded to the horizontal rod 504;

[0051] Bevel gear b506 and flip seat 1 507 are fixed on the cylindrical rod of sliding column b503 respectively. Bevel gear c508 is also sleeved on the outer side of the cylindrical rod of sliding column b503. Bevel gear c508 is a hollow structure. One end of bevel gear c508 is fixed to flip seat 2 509. Bevel gear b506 and bevel gear c508 are respectively meshed on both sides of bevel gear a505, ​​so that bevel gear b506 and bevel gear c508 rotate in opposite directions, ensuring that flip seat 1 507 and flip seat 2 509 achieve coaxial reversal effect on sliding column b503.

[0052] A docking sleeve 510 is fixed to the end of the flip seat 2 509 away from the bevel gear c508, and the cylindrical rod of the sliding column b503 is sleeved with the docking sleeve 510 through a bearing. By setting the docking sleeve 510, it can be ensured that the flip seat 1 507 and the flip seat 2 509 have sufficient stability when they rotate relative to each other; a tray 511 is fixed to the plane side of the flip seat 1 507 and the flip seat 2 509, and a plurality of groups of rollers are embedded and installed on the inner wall of the tray 511. By installing a plurality of groups of rollers on the inner wall of the tray 511, the cylindrical battery of the battery can be rotated smoothly. The core can be assisted in rotation by the rollers in the tray 511 to reduce the friction generated by the rotation; a supporting ring 512 is fixed on the open side of the tray 511, and the supporting ring 512 adopts an arc structure. The supporting ring 512 can prevent the cylindrical battery cell of the battery from loosening and falling off during installation. When the flip seat 1 507 or the flip seat 2 509 drives the cylindrical battery cell in the supporting ring 512 to flip and tilt upward, the cylindrical battery cell will slide along the supporting ring 512 into the tray 511, thereby realizing stable clamping and limiting of the cylindrical battery cell.

[0053] During the specific implementation, the cylindrical battery cell of the battery is placed in the supporting ring 512 on the lower side of the flip seat 509, and the servo motor 501 is started to rotate forward, so that the servo motor 501 drives the sliding column b503 to rotate through the sliding tube b502 at the output end, so that the sliding column b503 drives the bevel gear b506 and the flip seat 1 507 to rotate forward. Since the bevel gear b506 and the bevel gear c508 are symmetrically meshed and connected on the left and right sides of the bevel gear a505, ​​the bevel gear c508 is reversed on the cylindrical rod of the sliding column b503, so that the bevel gear c508 drives the flip seat 2 509 to reverse;

[0054] When the flip seat 2 509 rotates upward to lift the cylindrical battery cell through the supporting ring 512, the flip seat 1 507 will rotate the welded battery back through the tray 511. At this time, the welded battery and the unwelded battery can be driven to rotate alternately through the flip seat 1 507 and the flip seat 2 509. When the servo motor 501 is started to rotate alternately forward and reverse, the batteries can be alternately clamped and exported, which is convenient to reduce the operation time of battery clamping and removal, save manpower auxiliary operations, and can quickly replace the battery to be welded, thereby improving the processing efficiency of the battery during laser welding.

[0055] See also Figure 1-Figure 4 , Fig.16 , Fig.17 and Fig.19 , a transverse movement mechanism 6 is arranged below the flip mechanism 5, and the transverse movement mechanism 6 includes a transverse rod 601 and a tooth plate 602 horizontally fixed on the lower side of the column 101, and a vertical plate 603 is provided on the outer sliding sleeve of the transverse rod 601. By setting the transverse rod 601, the transverse gear 609 can drive the vertical plate 603 to move smoothly in the horizontal direction when the tooth plate 602 is meshed in the forward and reverse directions. The upper side of the vertical plate 603 is connected to the cylindrical rod of the sliding column b503 through a bearing, and the cylindrical rod of the sliding column b503 penetrates and extends out of the vertical plate 603 and is fixed to the large toothed disk 604. The outer edge of the large toothed disk 604 is provided with a tooth surface and an arc strip 6041. The middle part of the vertical plate 603 is rotatably connected with a worm 606, and one end of the worm 606 is fixed with a small toothed disk 605 arranged just below the large toothed disk 604;

[0056] A fixing frame 607 is installed on the side of the vertical plate 603 away from the small toothed plate 605. The interior of one end of the fixing frame 607 is connected with a transverse gear 609 through a rotating shaft. When the transverse gear 609 meshes and rolls on the toothed plate 602, it can drive the vertical plate 603 and the sliding column b503 to move laterally. A worm wheel 608 connected to the worm 606 is fixed on the side of the transverse gear 609. The bottom of the transverse gear 609 is meshed with the toothed plate 602. Through the meshing transmission of the worm 606 and the worm wheel 608, the transverse gear 609 has a self-locking function when rotating.

[0057] During specific implementation, the servo motor 501 is controlled by a program to realize intermittent alternating motion of 180° forward rotation and 180° reverse rotation; when the servo motor 501 drives the slide tube b502 to rotate forward 45°, the flip seat 2 509 will drive the unwelded battery to rotate in the opposite direction to a horizontal placement state, and the flip seat 1 507 will drive the welded battery to rotate forward to a vertical placement state, and at the same time, the slide column b503 will drive the large toothed disc 604 to rotate forward 45°, and the large toothed disc 604 will slide with the small toothed disc 605 through the arc strip 6041 on the outer edge during the process of rotating forward 45°, thereby preventing the small toothed disc 605 from rotating. During the first forward rotation of the servo motor 501 by 45°, the forward rotating flip seat 1 507 drives the battery in the tray 511 that has been welded to squeeze the driving wheel 310 from bottom to top, so that the driving wheel 310 moves along the inclined groove on the surface of the limiting plate 308 in a direction away from the center of the circle of the limiting plate 308. At the same time, the driving wheel 310 squeezes the arc groove on the surface of the adjusting plate 307, so that the adjusting plate 307 rotates and stretches the tension spring 309. The flip seat 1 507 can complete the separation of the battery from the driving mechanism 3 when driving the battery in the tray 511 to rotate forward.

[0058] When the servo motor 501 drives the slide tube b502 to rotate 90° again, the flip seat 2 509 will drive the unwelded battery to rotate reversely from the horizontal placement state to the vertical placement state, and the flip seat 1 507 will drive the welded battery to rotate forwardly from the vertical placement state to the horizontal placement state. At the same time, the slide column b503 will drive the large toothed disc 604 to rotate 90° again, and the large toothed disc 604 will mesh with the small toothed disc 605 through the tooth surface on the outer edge during the process of rotating forward 90°, so that the small toothed disc 605 can complete multiple circles of rotation. During the second forward rotation of 90° by the servo motor 501, the small toothed disc 605 drives the worm 606 to mesh with the worm wheel 608 to rotate in the forward direction, so that the worm wheel 608 drives the transverse gear 609 to roll forward on the toothed plate 602 by a preset distance, thereby causing the transverse gear 609 to drive the fixed frame 607, the sliding column b503 and the horizontal rod 504 to move away from the column 101. At this time, the flip seat 2 509 moves horizontally to the position where the flip seat 1 507 was originally located, so that the flip seat 2 509 drives the battery to complete the positioning and alignment with the driving mechanism 3, and when the flip seat 1 507 drives the battery to be placed horizontally, the staff can quickly take out the laser-welded battery;

[0059] When the servo motor 501 drives the slide tube b502 to continue rotating 45°, the flip seat 2 509 will drive the unwelded battery to rotate in the opposite direction from the vertical placement state to the inclined placement state to be sent into the driving mechanism 3, and the flip seat 1 507 will drive the supporting ring 512 to rotate forward from the horizontal placement state to the downward inclined placement state. At the same time, the slide column b503 will drive the large toothed disc 604 to continue rotating 45°, and the large toothed disc 604 will slide with the small toothed disc 605 through the arc strip 6041 on the outer edge during the process of rotating forward 45°, thereby limiting the angle of the small toothed disc 605 and ensuring that the worm 606 and the worm wheel 608 are self-locking for the rotation of the transverse gear 609. During the third forward rotation of the servo motor 501 by 45°, the staff can clamp the unwelded cylindrical battery cells into the supporting ring 512 of the flip seat 1 507, and at the same time, the flip seat 2 509 drives the cylindrical battery cells in the tray 511 to squeeze the driving wheel 310 from top to bottom, so that the driving wheel 310 moves along the inclined groove on the surface of the limiting disk 308 in the direction away from the center of the circle of the limiting disk 308, and the driving wheel 310 squeezes the arc groove on the surface of the adjusting disk 307, so that the adjusting disk 307 rotates and stretches the tension spring 309. When the flip seat 2 509 drives the cylindrical battery cells in the tray 511 to be completely stuck between the four driving wheels 310, the tension spring 309 is shortened and reset to clamp the cylindrical battery cells of the battery, so as to ensure that the driving mechanism 3 drives the battery in the tray 511 to rotate in a circle through the driving wheel 310 during operation;

[0060] On the contrary, when the servo motor 501 drives the slide tube b502 to reverse 180°, the transverse movement mechanism 6 will realize reverse movement and reset, and will cause the flip seat 1 507 to drive the cylindrical battery cell to flip and get stuck in the driving mechanism 3, and the flip seat 2 509 will drive the welded battery to flip and be exported from the driving mechanism 3, and the servo motor 501 will realize intermittent alternating motion of 180° forward rotation and 180° reverse rotation, ensuring that the laser welding tooling can realize stable and reliable intermittent welding.

[0061] See also Figure 1-Figure 4 A baffle 7 is welded to the side edge of the base 1 near the column 101, a storage rack 8 is fixed to the inner side of the baffle 7, a guide bar 9 is welded to the upper edge of the baffle 7 near the storage rack 8, two groups of guide bars 9 are provided, and each group of guide bars 9 is provided with two parallel guide bars, and the guide bars 9 are arc-shaped structures, and the cylindrical battery cells placed in the supporting ring 512 are protected by the guide bars 9 to prevent the cylindrical battery cells from slipping when the flip mechanism 5 is rotated at an angle.

[0062] In specific implementation, when the flip seat 1 507 or the flip seat 2 509 is flipped to a downward tilted placement, the cylindrical battery cell is placed in the corresponding supporting ring 512, and one end of the cylindrical battery cell is supported by the storage rack 8 on the inner side of the baffle 7; when the flip seat 1 507 or the flip seat 2 509 drives the supporting ring 512 to flip from a downward tilted placement to a horizontal placement, the cylindrical battery cell placed in the supporting ring 512 will fit against the guide bar 9 to flip, thereby preventing the cylindrical battery cell from slipping when being flipped and conveyed; conversely, when the flip seat 1 507 or the flip seat 2 509 drives the supporting ring 512 to flip the welded battery from a horizontal placement to a downward tilted placement, the guide bar 9 can also prevent the battery from slipping, thereby ensuring that the battery has an anti-fall protection effect during clamping and flipping transportation.

[0063] See also Figure 6 , Fig. 9 , Figure 13-Figure 15 and Fig. 20 A guide opening 408 is provided at the top of the straight channel of the feeding channel 401, a limit frame 409 is slidably arranged in the guide opening 408, a guide rod 410 is fixed at the bottom end of the limit frame 409, a support spring 411 is sleeved on the outer side of the guide rod 410, a convex block is fixed on the surface of the feeding channel 401 near the guide opening 408, and the guide rod 410 slides through the middle of the convex block;

[0064] A guide rail 412 is fixed to the edge of one side of the straight channel top of the feeding channel 401 away from the guide opening 408 , and a rotating frame 413 is rotatably connected to the middle of the guide rail 412 , and the upper end of the rotating frame 413 abuts against the extrusion bar 314 .

[0065] In a specific implementation, when the positive electrode cap moves from the curved groove of the feeding trough 401 to the straight groove, the positive electrode caps placed one by one will squeeze and push the previous positive electrode cap to be transported in the direction of the guide rail 412. When the positive electrode cap is led out from the top of the straight groove of the feeding trough 401, the positive electrode cap will move up between the limit frame 409 and the guide rail 412, and the protruding end of the positive electrode cap will squeeze the rotating frame 413 on the upper edge of the guide rail 412, so that the rotating frame 413 pushes the squeezing bar 314 when rotating, so that the squeezing bar 314 drives the telescopic rod 311 to shorten. , so that the shortened telescopic rod 311 will drive the positioning ring 312 away from the limiting frame 409, and when the rotating frame 413 is out of contact with the protruding end of the positive electrode cap, the telescopic rod 311 can drive the extrusion bar 314 to push the rotating frame 413 in the opposite direction by resetting, so that the rotating frame 413 rotates, and the telescopic rod 311 can drive the positioning ring 312 at the end to clamp the protruding end of the positive electrode cap when resetting, so that the positive electrode cap is positioned and restricted on the surface of the limiting frame 409 by the positioning ring 312, so as to prevent the placement of the positive electrode cap from being offset;

[0066] When the flip mechanism 5 is used to drive the flip seat 1 507 or the flip seat 2 509 to insert the cylindrical battery cell between the four driving wheels 310, the edge of the cylindrical battery cell will squeeze the limit frame 409, so that the limit frame 409 slides in the guide port 408, and at the same time, the limit frame 409 compresses the support spring 411 in the convex block on the side of the feeding trough 401 through the guide rod 410. At this time, when the limit frame 409 is pressed into the inside of the guide port 408, the limit frame 409 will break away from the obstruction of the positive cap, and at the same time, the positive end of the cylindrical battery cell will complete the positioning with the positive cap. At the same time, the telescopic rod 311 extends and pushes the positioning ring 312 to drive the positive electrode cap to be close to the center of the positive end of the cylindrical battery cell, and the positioning ring 312 can assist the positive electrode cap to rotate with the cylindrical battery cell through a plurality of groups of balls 313 on the inner wall. Therefore, when the driving mechanism 3 drives the cylindrical battery cell inside the tray 511 to rotate, the positive electrode cap will complete synchronous rotation with the cylindrical battery cell. When the laser welding gun 201 on the top of the bracket 2 is started, the laser welding gun 201 will emit a laser beam to evenly weld the contact edge between the positive electrode cap and the cylindrical battery cell to prevent defects during laser welding;

[0067] On the contrary, when the cylindrical battery cell and the positive electrode cap are welded and guided out from the four driving wheels 310 through the flipping mechanism 5, the support spring 411 will reset and extend, and the support spring 411 will push the limit frame 409 to reset and slide in the guide port 408, so that the limit frame 409 is re-blocked on one side of the positioning ring 312, ensuring that the feeding mechanism 4 can still position and block the placement of the positive electrode cap when it subsequently transports the positive electrode cap to one side of the limit frame 409.

[0068] To summarize, the base 1 is installed on the designated production station, and the flip seat 1 507 and the flip seat 2 509 are driven by the flip mechanism 5 to intermittently and alternately clamp the positive end of the cylindrical battery cell between the four driving wheels 310 of the driving mechanism 3, and the driving motor 302 drives the driving gear 303 and the clamped battery to rotate, and the positive electrode cap is sent to the front of the positioning ring 312 through the feeding mechanism 4, so that the positioning ring 312 positions the positive electrode cap, and then the laser welding gun 201 on the top of the bracket 2 is started, so that the laser welding gun 201 emits a laser beam to complete uniform welding of the contact edge of the positive electrode cap and the cylindrical battery cell. The laser welding tool can realize mass welding production of batteries. The laser welding tool can not only produce automotive batteries but also produce battery products used in other equipment. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0069] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A laser welding tool for preventing welding deviation, comprising a base (1), a bracket (2) and a laser welding gun (201), characterized in that: A column (101) and a bracket (2) are fixed to the top of the base (1), a turning mechanism (5) for supporting a workpiece is arranged on the top of the column (101), a laser welding gun (201) is installed on the top of the bracket (2), a reinforcing plate (202) is welded on the inner side of the bracket (2), a driving mechanism (3) is arranged on the bracket (2), the driving mechanism (3) comprises a mounting plate (301) fixed to the outer side of the bracket (2), and a driving motor (301) is installed on the outer side of the mounting plate (301). 02), a driving gear (303) connected to the output end of the driving motor (302) is arranged in the middle of the inner side of the mounting plate (301), and a transmission gear (304) meshing with the driving gear (303) is also connected to the inner side of the mounting plate (301), and the central axis of the transmission gear (304) is connected to a sliding tube a (305) through a coupling, and a sliding column a (306) is inserted into the interior of the sliding tube a (305), and one end of the sliding column a (306) is movably connected to the driving wheel (310) through a coupling; A limit plate (308) is fixed on the reinforcing plate (202), an adjusting plate (307) is arranged on the upper side of the limit plate (308), the driving wheel (310) penetrates the inclined groove on the surface of the limit plate (308) and the arc groove on the surface of the adjusting plate (307), a tension spring (309) is connected between the outer edge of the adjusting plate (307) and the inner wall of the bracket (2), a telescopic rod (311) is installed in the middle of the limit plate (308), a positioning ring (312) is fixed at the bottom end of the telescopic rod (311), a plurality of balls (313) are embedded in the inner wall edge of the opening of the positioning ring (312), an extrusion strip (314) is fixed on the lower side of the outer wall of the telescopic rod (311), and a feeding mechanism (4) is arranged on the lower side of the driving mechanism (3); The flip mechanism (5) comprises a servo motor (501) mounted on the top of the column (101); a slide tube b (502) is fixed to the output end of the servo motor (501); a slide column b (503) is arranged on the inner side of the slide tube b (502); the slide column b (503) is composed of a polygonal column rod and a cylindrical rod; the polygonal column rod of the slide column b (503) is slidably connected to the slide tube b (502); a horizontal rod (504) is slidably connected to the middle of the column (101); an end of the horizontal rod (504) away from the column (101) is movably connected to a bevel gear a (505); the cylindrical rod of the slide column b (503) is connected to a vertical plate via a bearing sleeve, and the bottom end of the vertical plate is welded to the horizontal rod (504); A bevel gear b (506) and a first flip seat (507) are fixed to the cylindrical rod of the slide column b (503), and a bevel gear c (508) is sleeved on the outer side of the cylindrical rod of the slide column b (503). The bevel gear c (508) is a hollow structure, and one end of the bevel gear c (508) is fixed to the second flip seat (509); A docking sleeve (510) is fixed to one end of the flip seat 2 (509) away from the bevel gear c (508); the cylindrical rod of the sliding column b (503) is sleeved with the docking sleeve (510) via a bearing; trays (511) are fixed to the plane sides of the flip seat 1 (507) and the flip seat 2 (509); a plurality of groups of rollers are embedded and installed on the inner wall of the tray (511); and a supporting ring (512) is fixed to the open side of the tray (511).

2. A laser welding tool for preventing welding deviation according to claim 1, characterized in that: The feeding mechanism (4) comprises a feeding channel (401) welded to the lower edge of the reinforcing plate (202), the feeding channel (401) being composed of a straight channel and a curved channel, an inlet channel (402) being fixed at one end of the curved channel of the feeding channel (401), a cylinder (403) being installed on the side of the inlet channel (402), a push plate (404) being fixed on the output rod of the cylinder (403), and the push plate (404) being slidably inserted from the side of the inlet channel (402).

3. A laser welding tool for preventing welding deviation according to claim 2, characterized in that: A reserved hole is provided on the side wall of the curved channel of the feeding channel (401), and a rotating plate (405) is connected to the reserved hole via a rotating shaft, a torsion spring (406) is sleeved on the rotating shaft of the rotating plate (405), and a check block (407) inserted into the curved channel is fixed to one end of the rotating plate (405) away from the torsion spring (406).

4. The laser welding tool for preventing welding deviation according to claim 3 is characterized in that: A guide opening (408) is provided at the top of the straight channel of the feeding channel (401), a limit frame (409) is slidably arranged in the guide opening (408), a guide rod (410) is fixed at the bottom end of the limit frame (409), a support spring (411) is sleeved on the outer side of the guide rod (410), a convex block is fixed on the surface of the feeding channel (401) near the guide opening (408), and the guide rod (410) is slidably passed through the middle of the convex block; A guide rail (412) is fixed to the edge of one side of the straight channel top end of the feeding channel (401) away from the guide opening (408), and a rotating frame (413) is rotatably connected to the middle of the guide rail (412), and the upper end of the rotating frame (413) is in contact with the extrusion bar (314).

5. The laser welding tool for preventing welding deviation according to claim 1, characterized in that: A transverse movement mechanism (6) is arranged below the flip mechanism (5), and the transverse movement mechanism (6) comprises a transverse rod (601) and a tooth plate (602) horizontally fixed to the lower side of the vertical column (101); a vertical plate (603) is provided on the outer sliding sleeve of the transverse rod (601); the upper side of the vertical plate (603) is connected to the cylindrical rod of the sliding column b (503) through a bearing; the cylindrical rod of the sliding column b (503) extends through the vertical plate (603) and is fixed to a large toothed disc (604); a tooth surface and an arc strip (6041) are arranged on the outer edge of the large toothed disc (604); a worm (606) is rotatably connected to the middle part of the vertical plate (603); a small toothed disc (605) arranged directly below the large toothed disc (604) is fixed to one end of the worm (606).

6. The laser welding tool for preventing welding deviation according to claim 5, characterized in that: A fixing frame (607) is installed on the side of the vertical plate (603) away from the small toothed plate (605); a transverse gear (609) is connected to the interior of one end of the fixing frame (607) via a rotating shaft; a worm wheel (608) connected to the worm (606) is fixed to the side of the transverse gear (609); and the bottom of the transverse gear (609) is meshingly connected to the toothed plate (602).

7. The laser welding tool for preventing welding deviation according to claim 1, characterized in that: A baffle (7) is welded to the side edge of the base (1) close to the column (101), a material storage rack (8) is fixed to the inner side of the baffle (7), and a guide strip (9) is welded to the upper edge of the baffle (7) close to the material storage rack (8).

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