Energy storage battery liquid cooling box welding clamping tooling

Abstract

The present invention discloses a welding clamping tool for a liquid-cooled box of an energy storage battery, comprising: a workbench, a pad provided on the workbench, a first lifting platform provided on the left and right sides of the workbench, a first latch provided on the first lifting platform, a pressing unit provided around the workbench, a bracket clamping mechanism provided on the left and right sides of the workbench, two hook clamping mechanisms, at least two clamping cylinders, and an inner left and right clamping mechanism, a panel positioning seat, a front push cylinder, a horizontal bar positioning seat, two second lifting platforms provided on the front of the workbench, a third latch provided on the second lifting platform, a rear sealing plate positioning seat, a rear push cylinder, two third lifting platforms, an inner front and rear clamping mechanism, a fourth latch provided on the third lifting platform, and an avoidance gap provided on the bottom of the workbench. The tool is simple and reliable to operate, can quickly and accurately position and clamp the various components of the liquid-cooled box, so that the liquid-cooled box can be automatically welded, thereby greatly improving welding efficiency and product quality.

Description

Technical Field

[0001] The invention relates to the field of welding clamping tooling, and in particular to a welding clamping tooling for a liquid cooling box of an energy storage battery. Background Art

[0002] The structure of the liquid cooling box for energy storage batteries includes: a base plate, a panel, horizontal bars, and a rear cover. The left and right sides of the base plate are bent and erected to form the box walls. The panel is welded across the front port of the base plate, the horizontal bar is welded across the bottom of the base plate and is located behind the panel, and the rear cover is welded across the rear port of the base plate. A hook is welded to the front and rear of the left and right outer surfaces of the base plate, and a bracket is welded to the left and right outer surfaces of the front end of the base plate. Workers usually manually position the panel, horizontal bars, rear cover, hooks, and brackets, and then manually weld these components to the base plate. This manual positioning and welding of the liquid cooling box by workers has the disadvantages of low production efficiency, poor positioning accuracy, and poor product quality. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a welding clamping tool for a liquid cooling box of an energy storage battery which can improve the production efficiency and product quality of the liquid cooling box.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is: a welding clamping tool for a liquid-cooled box of an energy storage battery, comprising: a workbench, characterized in that: a pad for supporting a bottom support plate is provided on the workbench, a first lifting platform and a cylinder capable of driving the first lifting platform to lift are respectively provided at the front and rear of the left and right sides of the workbench, a first latch is provided on the first lifting platform, after the four first lifting platforms are raised, the four first latches can respectively rise to the work position for positioning the bottom support plate, and when the bottom support plate is buckled on the workbench, it can be positioned by inserting the four first latches into a hole on the box wall respectively, a number of pressing units capable of pressing the bottom support plate downward onto the workbench are provided around the workbench, and a clamping rack is respectively provided on the left and right sides of the workbench. The clamping mechanism, two hook clamping mechanisms, at least two clamping cylinders, an inner left and right clamping mechanism, the card frame clamping mechanism can press the card frame to the outer side of the bottom tray, the hook clamping mechanism can press the hook to the outer side of the bottom tray, the clamping cylinder can push and press the bottom tray box wall from the outside after extending, the inner left and right clamping mechanisms can push and press the bottom tray box wall from the inside, a panel positioning seat for positioning the panel, a front pushing cylinder that can push the panel from front to back, a horizontal bar positioning seat for positioning the horizontal bar, two second lifting platforms arranged side by side on the left and right and two cylinders that can respectively drive the two second lifting platforms to rise and fall, the panel positioning seat can support the panel, and the panel positioning seat is provided with The second latch is used to be inserted into the hole on the side wall of the panel, and the front positioning wall for the panel to be abutted against. After the front pushing cylinder is extended, the panel can be pressed against the front positioning wall. The horizontal bar positioning seat can support the horizontal bar. A third latch is provided on the second lifting platform. After the two second lifting platforms are raised, the two third latches can respectively rise to the working position for positioning the horizontal bar. When the horizontal bar is placed on the horizontal bar positioning seat, it can be positioned by inserting the two third latches into a hole thereon. A rear sealing plate positioning seat for positioning the rear sealing plate, a rear pushing cylinder that can push the rear sealing plate from back to front, two third lifting platforms arranged side by side on the left and right, and two cylinders that can respectively drive the two third lifting platforms to rise and fall, an inner front and rear clamping mechanism, and the rear sealing plate The positioning seat can support the rear sealing plate, and the third lifting platform is provided with a fourth pin. After the two third lifting platforms are raised, the two fourth pins can respectively rise to the work station for positioning the rear sealing plate. When the rear sealing plate is placed on the rear sealing plate positioning seat, it can be positioned by inserting the two fourth pins into a hole thereon. The rear sealing plate positioning seat is provided with a rear positioning wall for the rear sealing plate to be pressed against the rear positioning wall after the rear pushing cylinder is extended. The inner front and rear clamping mechanisms can push and press the rear sealing plate from the inside, and an avoidance gap is provided on the bottom of the workbench to expose the panel, horizontal bar and rear sealing plate from the bottom, so that after the workbench is flipped 180 degrees, the welding robot can pass through the avoidance gap to weld the panel, horizontal bar and rear sealing plate.

[0005] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: the structure of the inner left and right clamping mechanism includes: a first slide that can slide left and right and is installed on the workbench through a linear guide rail and a first sliding drive mechanism that can drive the first slide to move left and right, and a plurality of push blocks arranged in a front-to-back interval are provided on the first slide. After the first slide moves toward the bottom pallet box wall on its side under the drive of the sliding drive mechanism, the push blocks on it can push and press the bottom pallet box wall from the inside.

[0006] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: the structure of the inner front and rear clamping mechanism includes: a second slide that can slide back and forth and is installed on the workbench through a linear guide rail and a second sliding drive mechanism that can drive the second slide to move back and forth, and a plurality of push blocks arranged at intervals on the left and right are provided on the second slide. After the second slide moves toward the rear sealing plate under the drive of the sliding drive mechanism, the push blocks on it can push and press the rear sealing plate from the inside.

[0007] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: the first sliding drive mechanism and the second sliding drive mechanism both include: a mounting frame fixed on the workbench, a vertical rod, an outer connecting rod, an inner connecting rod, and a cylinder frame, the cylinder frame is located below the workbench, a cylinder is installed on the cylinder frame, one side of the cylinder frame is hinged to the mounting frame, the piston rod of the cylinder is fixed to the lower end of the vertical rod, the upper end of the vertical rod, one end of the outer connecting rod, and one end of the inner connecting rod are hinged together, the other end of the outer connecting rod is hinged to the slide, and the other end of the inner connecting rod is hinged to the mounting frame, a limit block is provided on the top of the mounting frame that can limit the upper end of the vertical rod, the limit block can limit the pushing distance of the slide by limiting the upward movement of the vertical rod, and after the piston rod of the cylinder is contracted, it can drive the slide backward through the outer connecting rod. Conversely, after the piston rod of the cylinder is extended, it can drive the slide forward through the outer connecting rod so that the push block can push.

[0008] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: the structure of the card rack clamping mechanism includes: a support block fixed on the workbench for supporting the card rack, a card base for clamping and positioning the card rack, and a cylinder for driving the card base to move left and right. After the card rack is clamped on the card base, it will be supported by the support block, and then after the cylinder is extended, the card rack will be pressed by the card base and positioned on the outer surface of the bottom support plate. A sensor is provided on the card base for detecting whether the card rack is clamped in place.

[0009] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: the structure of the bracket includes: a vertical plate, a claw is respectively provided on the left and right sides of the vertical plate, and the bracket can be clamped between the two claws, and a high block and a low block are provided on the vertical plate between the two claws. After the bracket is installed between the two claws, it can be clamped into place by respectively leaning against the high block and the low block on both sides.

[0010] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: the structure of the hook clamping mechanism includes: a hook seat for mounting the hook, a cylinder for driving the hook seat to move left and right, and a pressing cylinder for pressing the hook. The hook is clamped on the hook seat, and then after the cylinder is extended, the hook will be pressed by the hook seat to be positioned on the outer surface of the bottom support plate, and then the pressing cylinder will extend to press the upper part of the hook. A sensor is provided on the hook seat to detect whether the hook is clamped in place.

[0011] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: a pressing arm and a 90-degree angle clamping cylinder for driving the pressing arm to press the positioned bracket are respectively provided on the left and right sides of the front end of the workbench.

[0012] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: the structure of the pressing unit includes: a strong flip clamping cylinder, a transmission rod, and a swing rod fixed on the workbench, one end of the transmission rod is connected to the strong flip clamping cylinder, and the other end of the transmission rod is hinged to the middle part of the swing rod, and a pressure block is provided at each end of the swing rod. After the strong flip clamping cylinder drives the transmission rod and the swing rod to flip toward the bottom support plate, the two pressure blocks on the swing rod can press the bottom support plate.

[0013] Furthermore, the aforementioned energy storage battery liquid cooling box welding clamping tooling, wherein: two water-cooling plates arranged side by side and spaced apart are provided on the front end of the workbench, and cooling water flows through the water-cooling plates. The two water-cooling plates are used to abut against the lower surface of the front end of the bottom support plate, so that the bottom support plate can be cooled during welding to prevent deformation of the bottom support plate.

[0014] The advantages of the present invention are: the energy storage battery liquid cooling box welding clamping tooling is simple and reliable to operate, and can quickly and accurately position and clamp the various components of the liquid cooling box, so that the liquid cooling box can be automatically welded, thereby greatly improving welding efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the welding clamping tooling for the liquid cooling box of the energy storage battery described in the present invention.

[0016] Figure 2 It is a structural diagram of the energy storage battery liquid cooling box welding clamping tooling after clamping the bottom support plate, panel, horizontal bar, and rear sealing plate.

[0017] Figure 3 It is a structural schematic diagram of the clamping panel, horizontal bars and rear sealing plate on the welding clamping tooling of the energy storage battery liquid cooling box.

[0018] Figure 4 It is a structural diagram of the sliding drive mechanism.

[0019] Figure 5 It is a structural diagram of the card rack clamping mechanism.

[0020] Figure 6 It is a structural diagram of the hook clamping mechanism.

[0021] Figure 7 Schematic diagram of the structure of the liquid cooling box. DETAILED DESCRIPTION

[0022] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 7As shown, the energy storage battery liquid cooling box welding clamping tool comprises: a workbench 1, a pad 2 for supporting the bottom support plate 24 is provided on the workbench 1, a first lifting platform 3 and a cylinder capable of driving the first lifting platform 3 to move up and down are respectively provided at the front and rear of the left and right sides of the workbench 1, a first latch 4 is provided on the first lifting platform 3, after the four first lifting platforms 3 are raised, the four first latches 4 can respectively rise to the position where the bottom support plate 24 can be positioned, and when the bottom support plate 24 is buckled on the workbench 1, it can be positioned by inserting the four first latches 4 into a hole on the box wall thereof, eleven pressing units 5 are provided around the workbench 1 to press the bottom support plate 24 downward onto the workbench 1, three pressing units 5 are provided on the front end of the workbench 1, two pressing units 5 are provided on the rear end of the workbench 1, and three pressing units 5 are respectively provided on the left and right sides of the workbench 1;On the left and right sides of the workbench 1 are respectively provided with a card frame clamping mechanism 6, two hook clamping mechanisms 7, two clamping cylinders 8, and an inner left and right clamping mechanism 9. The card frame clamping mechanism 6 can press the card frame 29 to be positioned on the outer side of the bottom support plate 24, and the hook clamping mechanism 7 can press the hook 28 to be positioned on the outer side of the bottom support plate 24. After the clamping cylinder 8 is extended, it can push and press the box wall of the bottom support plate 24 from the outside, and the inner left and right clamping mechanism 9 can push and press the box wall of the bottom support plate 24 from the inside. On the front part of the workbench 1, there are provided a panel positioning seat 10 for positioning the panel 25, three front pushing cylinders 11 that can push the panel 25 from front to back, and a horizontal positioning seat 11 for positioning the horizontal positioning seat 1 The horizontal bar positioning seat 12 of the bar 26, two second lifting platforms 13 arranged side by side, and two cylinders that can respectively drive the two second lifting platforms 13 to move up and down, the panel positioning seat 10 can support the panel 25, and the panel positioning seat 10 is provided with a second latch 16 for inserting into the hole on the side wall of the panel 25, and a front positioning wall 15 for the panel 25 to abut. After the front push cylinder 11 is extended, the panel 25 can be pressed against the front positioning wall 15. The horizontal bar positioning seat 12 can support the horizontal bar 26, and the second lifting platform 13 is provided with a third latch 14. After the two second lifting platforms 13 are raised, the two third latches 14 can respectively rise to the position where the horizontal bar 26 can be positioned. When the horizontal bar 26 is placed on the horizontal bar positioning seat 12, it can be positioned by inserting two third latches 14 into a hole thereon respectively. On the rear part of the workbench 1, there are provided a rear sealing plate positioning seat 17 for positioning the rear sealing plate 27, three rear pushing cylinders 18 that can push the rear sealing plate 27 from the back to the front, two third lifting platforms 19 arranged side by side on the left and right, and two cylinders that can respectively drive the two third lifting platforms 19 to move up and down, and an inner front and rear clamping mechanism 20. The rear sealing plate positioning seat 17 can support the rear sealing plate 27. The third lifting platform 19 is provided with a fourth latch 21. After the two third lifting platforms 19 are raised, the two fourth latches 21 can respectively rise to the position where the rear sealing plate 27 can be positioned. At the workstation, when the rear sealing plate 27 is placed on the rear sealing plate positioning seat 17, it can be positioned by inserting two fourth latches 21 into a hole thereon. The rear sealing plate positioning seat 17 is provided with a means for the rear sealing plate 27 to abut against the rear positioning wall 22. After the rear push cylinder 18 is extended, it can press the rear sealing plate 27 against the rear positioning wall 22. The inner front and rear clamping mechanism 20 can push and press the rear sealing plate 27 from the inside. The bottom of the workbench 1 is provided with an avoidance notch 23 that allows the panel 25, horizontal bar 26, and rear sealing plate 27 to be exposed from the bottom. This allows the welding robot to pass through the avoidance notch 23 to weld the panel 25, horizontal bar 26, and rear sealing plate 27 after the workbench 1 is turned 180 degrees.

[0023] In this embodiment, the structure of the inner left and right clamping mechanism 9 includes: a first slide 30 that can slide left and right and is installed on the workbench 1 through a linear guide rail, and a first sliding drive mechanism that can drive the first slide 30 to move left and right. A number of push blocks arranged in a front-to-back interval are provided on the first slide 30. After the first slide 30 moves toward the bottom support plate 24 box wall on its side under the drive of the sliding drive mechanism, the push blocks on it can push and press the bottom support plate 24 box wall from the inside.

[0024] The structure of the inner front and rear clamping mechanism 20 includes: a second slide 31 that can slide back and forth and is installed on the workbench 1 through a linear guide rail, and a second sliding drive mechanism that can drive the second slide 31 to move back and forth. Several push blocks arranged at intervals on the left and right are provided on the second slide 31. After the second slide 31 moves toward the rear sealing plate 27 under the drive of the sliding drive mechanism, the push blocks on it can push and press the rear sealing plate 27 from the inside.

[0025] like Figure 4 As shown, the first sliding drive mechanism and the second sliding drive mechanism both include: a mounting frame 32 fixed on the workbench 1, a vertical rod 33, an outer connecting rod 34, an inner connecting rod 35, and a cylinder frame 36. The cylinder frame 36 is located below the workbench 1. A cylinder is mounted on the cylinder frame 36. One side of the cylinder frame 36 is hinged to the mounting frame 32. The piston rod of the cylinder is fixed to the lower end of the vertical rod 33. The upper end of the vertical rod 33, one end of the outer connecting rod 34, and one end of the inner connecting rod 35 are hinged to each other. The other end of the vertical rod 34 is hingedly connected to the carriage, and the other end of the inner link 35 is hingedly connected to the mounting frame 32. A stopper 37 is provided at the top of the mounting frame 32 to limit the upper end of the vertical rod 33. This stopper 37 limits the upward movement of the vertical rod 33, thereby limiting the distance the carriage can move. When the piston rod of the pneumatic cylinder retracts, it drives the carriage backward via the outer link 34. Conversely, when the piston rod of the pneumatic cylinder extends, it drives the carriage forward via the outer link 34, enabling the push block to push against it. In this embodiment, the maximum upward movement of the vertical rod 33 limited by the stopper 37 is precisely when the outer link 34 and the inner link 35 rotate to a horizontal position and are aligned. At this point, the outer link 34 and the inner link 35 interact to push against the push block, and the outer link 34 and the inner link 35 are in a self-locking state, which can only be released when the vertical rod 33 retracts.

[0026] In actual production, the first sliding drive mechanism and the second sliding drive mechanism have the following advantages compared to direct pushing with a cylinder: when the air pressure is unstable, the thrust fluctuation of the cylinder will be relatively large, making it impossible to push reliably. The sliding drive mechanism in this embodiment will be in a self-locking state when the outer connecting rod 34 and the inner connecting rod 35 are rotated to a horizontal state and are in a straight line. At this time, even if the air pressure is unstable, the pushing force of the outer connecting rod 34 and the inner connecting rod 35 will not be relaxed, so that reliable pushing can be achieved.

[0027] like Figure 5 As shown, the structure of the card rack clamping mechanism 6 includes: a support block 46 fixed on the workbench 1 for supporting the card rack 29, a base for clamping and positioning the card rack 29, and a cylinder for driving the base to move left and right. After the card rack 29 is clamped on the base, it will be supported by the support block 46. Then, after the cylinder is extended, the card rack 29 will be pressed by the base and positioned on the outer surface of the bottom support plate 24. A sensor is provided on the base to detect whether the card rack 29 is clamped in place.

[0028] The structure of the card holder includes: a vertical plate 49, a claw 44 is provided on the left and right sides of the vertical plate 49 respectively, and the card frame 29 can be clamped between the two claws 44, and a high block 47 and a low block 48 are provided on the vertical plate 49 between the two claws 44. After the card frame 29 is installed between the two claws 44, it can be clamped into place by abutting against the high block 47 and the low block 48 on both sides respectively.

[0029] like Figure 6 As shown, the structure of the hook clamping mechanism 7 includes: a hook seat 52 for clamping the hook 28, a cylinder for driving the hook seat 52 to move left and right, and a pressing cylinder 53 for pressing the hook 28. The hook 28 is clamped on the hook seat 52, and then after the cylinder is extended, the hook 28 will be pressed by the hook seat 52 to be positioned on the outer surface of the bottom support plate 24, and then the pressing cylinder 53 will be extended to press the upper part of the hook 28. A sensor is provided on the hook seat 52 for detecting whether the hook 28 is clamped in place.

[0030] On the left and right sides of the front end of the workbench 1 are respectively provided with a pressing arm 38 and a 90-degree angular clamping cylinder 39 for driving the pressing arm 38 to press the positioned clamping frame 29. With this arrangement, when the clamping frame 29 is no longer required, the pressing arm 38 on the 90-degree angular clamping cylinder 39 can rotate 90 degrees and move away from above the clamping frame 29, thereby facilitating the removal of the welded liquid cooling box. The 90-degree angular clamping cylinder is a commercially available cylinder.

[0031] The pressing unit 5 comprises a strong flip clamping cylinder 42 fixed to the workbench 1, a transmission rod 40, and a swing rod 41. One end of the transmission rod 40 is connected to the strong flip clamping cylinder 42, and the other end of the transmission rod 40 is hinged to the middle of the swing rod 41. A pressure block is provided at each end of the swing rod 41. After the strong flip clamping cylinder 42 drives the transmission rod 40 and the swing rod 41 to flip toward the bottom support plate 24, the two pressure blocks on the swing rod 41 can press the bottom support plate 24. The strong flip clamping cylinder is a commercially available cylinder.

[0032] Two water-cooling plates 43 are arranged side by side and spaced apart on the front end of the workbench 1. Cooling water flows through the water-cooling plates 43. The two water-cooling plates 43 are used to abut against the lower surface of the front end of the bottom support plate 24, so that the bottom support plate 24 can be cooled during welding to prevent deformation of the bottom support plate 24.

[0033] During operation, the panel 25 is first placed on the panel positioning seat 10, and the second latches 16 on the panel positioning seat 10 are inserted into the holes on the panel 25 to position the panel 25, and then the front pushing cylinder 11 is extended to press the panel 25 against the front positioning wall 15; then the horizontal bar 26 is placed on the horizontal bar positioning seat 12, the two second lifting platforms 13 are raised, and the two third latches 14 are raised and inserted into the holes on the horizontal bar 26 to position the horizontal bar 26; then the rear sealing plate 27 is placed on the rear sealing plate positioning seat 17, the two third lifting platforms 19 are raised, and the two fourth latches 21 are raised and inserted into the holes on the rear sealing plate 27 to position the rear sealing plate 27, and the rear pushing cylinder 18 is extended to press the rear sealing plate 27 against the rear positioning wall 22, and the push blocks on the inner front and rear clamping mechanisms 20 push the rear sealing plate 27 from the inside. Push and press; then the bottom support plate 24 is buckled and placed on the workbench 1, the four first lifting platforms 3 are raised, the four first latches 4 rise and are respectively inserted into the holes on the bottom support plate 24 to position the bottom support plate 24, and each pressing unit 5 presses the bottom support plate 24; then the two brackets 29 are respectively clamped on their respective brackets, and the four hooks 28 are respectively clamped on their respective hook seats 52, and then the corresponding cylinders are extended to press the two brackets 29 and the four hooks 28 on the outer side of the bottom support plate 24, and the two 90-degree clamping cylinders 39 drive their respective pressing arms 38 to press the two brackets 29 respectively. Finally, the push blocks on the two inner left and right clamping mechanisms 9 push and press the bottom support plate 24 box wall from the inside, and each clamping cylinder 8 pushes and presses the bottom support plate 24 box wall from the outside.

[0034] After the various components on the liquid cooling box are clamped on the tooling, the welding robot first welds the parts on the outside of the liquid cooling box that need to be welded, then the tooling is turned 180 degrees, and then the welding robot passes through the avoidance gap 23 to weld the parts on the inside of the liquid cooling box that need to be welded.

Claims

1. Energy storage battery liquid cooling box welding clamping tool, including: workbench, characterized by: A pad for supporting the bottom plate is provided on the workbench. A first lifting platform and a cylinder capable of driving the first lifting platform to move up and down are respectively provided at the front and rear of the left and right sides of the workbench. A first latch is provided on the first lifting platform. After the four first lifting platforms are raised, the four first latches can respectively rise to the position where the bottom plate can be positioned. When the bottom plate is buckled on the workbench, it can be positioned by inserting the four first latches into a hole on the box wall. There are several pressing units around the workbench that can press the bottom support plate downward onto the workbench. A card rack clamping mechanism, two hook clamping mechanisms, at least two clamping cylinders, and an inner left and right clamping mechanism are respectively provided on the left and right sides of the workbench. The card rack clamping mechanism can press the card rack to position it on the outer side of the bottom support plate, the hook clamping mechanism can press the hook to position it on the outer side of the bottom support plate, and after the clamping cylinder is extended, it can push and press the bottom support plate box wall from the outside, and the inner left and right clamping mechanism can push and press the bottom support plate box wall from the inside. A positioning mechanism is provided on the front of the workbench. The panel positioning seat of the panel, the front pushing cylinder that can push the panel from front to back, the horizontal bar positioning seat for positioning the horizontal bar, two second lifting platforms arranged side by side on the left and right, and two cylinders that can respectively drive the two second lifting platforms to move up and down. The panel positioning seat can support the panel, and the panel positioning seat is provided with a second latch for inserting into the hole on the side wall of the panel, and a front positioning wall for the panel to lean against. After the front pushing cylinder is extended, the panel can be pressed against the front positioning wall. The horizontal bar positioning seat can support the horizontal bar, and a third latch is provided on the second lifting platform. After the two second lifting platforms are raised, the two third latches can The two third lifting platforms are arranged side by side, and two cylinders that can respectively drive the two third lifting platforms to move up and down, and an inner front and rear clamping mechanism, the rear sealing plate positioning seat can support the rear sealing plate, and a fourth latch is provided on the third lifting platform. After the two third lifting platforms are raised, the two fourth latches can be respectively moved up and down. The rear sealing plate is lifted up to the working position where it can position the rear sealing plate. When the rear sealing plate is placed on the rear sealing plate positioning seat, it can be positioned by inserting two fourth pins into a hole thereon respectively. The rear sealing plate positioning seat is provided with a rear positioning wall for the rear sealing plate to be pressed against. After the rear pushing cylinder is extended, the rear sealing plate can be pressed against the rear positioning wall. The inner front and rear clamping mechanisms can push and press the rear sealing plate from the inside. An avoidance gap is provided on the bottom of the workbench to expose the panel, horizontal bar and rear sealing plate from the bottom, so that after the workbench is turned 180 degrees, the welding robot can pass through the avoidance gap to weld the panel, horizontal bar and rear sealing plate.

2. The energy storage battery liquid cooling box welding clamping tool according to claim 1 is characterized in that: The structure of the inner left and right clamping mechanism includes: a first slide that can slide left and right and is installed on the workbench through a linear guide rail, and a first sliding drive mechanism that can drive the first slide to move left and right. A number of push blocks arranged in a front-to-back interval are provided on the first slide. After the first slide moves toward the bottom pallet box wall on its side under the drive of the sliding drive mechanism, the push blocks on it can push and press the bottom pallet box wall from the inside.

3. The energy storage battery liquid cooling box welding clamping tool according to claim 1 is characterized in that: The structure of the inner front and rear clamping mechanism includes: a second slide that can slide back and forth and is installed on the workbench through a linear guide rail, and a second sliding drive mechanism that can drive the second slide to move back and forth. Several push blocks arranged at intervals left and right are provided on the second slide. After the second slide moves toward the rear sealing plate under the drive of the sliding drive mechanism, the push blocks on it can push and press the rear sealing plate from the inside.

4. The energy storage battery liquid cooling box welding clamping tool according to claim 2 or 3, characterized in that: The first sliding drive mechanism and the second sliding drive mechanism both include: a mounting frame fixed on the workbench, a vertical rod, an outer connecting rod, an inner connecting rod, and a cylinder frame. The cylinder frame is located below the workbench, and a cylinder is installed on the cylinder frame. One side of the cylinder frame is hinged to the mounting frame, and the piston rod of the cylinder is fixed to the lower end of the vertical rod. The upper end of the vertical rod, one end of the outer connecting rod, and one end of the inner connecting rod are hinged together. The other end of the outer connecting rod is hinged to the slide, and the other end of the inner connecting rod is hinged to the mounting frame. A limit block that can limit the upper end of the vertical rod is provided on the top of the mounting frame. The limit block can limit the pushing distance of the slide by limiting the upward movement of the vertical rod. After the piston rod of the cylinder is contracted, it can drive the slide backward through the outer connecting rod. Conversely, after the piston rod of the cylinder is extended, it can drive the slide forward through the outer connecting rod so that the push block can push.

5. The energy storage battery liquid cooling box welding clamping tool according to claim 1, 2 or 3, characterized in that: The structure of the card rack clamping mechanism includes: a support block fixed on the workbench for supporting the card rack, a base for mounting and positioning the card rack, and a cylinder for driving the base to move left and right. After the card rack is mounted on the base, it will be supported by the support block. Then, after the cylinder is extended, the card rack will be pressed by the base and positioned on the outer surface of the bottom support plate. A sensor is provided on the base to detect whether the card rack is mounted in place.

6. The energy storage battery liquid cooling box welding clamping tool according to claim 5, characterized in that: The structure of the card holder includes: a vertical plate, a claw is provided on the left and right sides of the vertical plate respectively, and the card frame can be clamped between the two claws, and a high block and a low block are provided on the vertical plate between the two claws. After the card frame is installed between the two claws, it can be clamped into place by abutting against the high block and the low block on both sides respectively.

7. The energy storage battery liquid cooling box welding clamping tool according to claim 1, 2 or 3, characterized in that: The structure of the hook clamping mechanism includes: a hook seat for clamping the hook, a cylinder for driving the hook seat to move left and right, and a pressing cylinder for pressing the hook. The hook is clamped on the hook seat, and then after the cylinder is extended, the hook will be pressed by the hook seat and positioned on the outer surface of the bottom support plate. Then the pressing cylinder will extend to press the upper part of the hook. A sensor is provided on the hook seat to detect whether the hook is clamped in place.

8. The energy storage battery liquid cooling box welding clamping tool according to claim 1, 2 or 3, characterized in that: A pressing arm and a 90-degree angle clamping cylinder for driving the pressing arm to press the positioned bracket are respectively provided on the left and right sides of the front end of the workbench.

9. The energy storage battery liquid cooling box welding clamping tool according to claim 1, 2 or 3, characterized in that: The structure of the pressing unit includes: a strong flip clamping cylinder, a transmission rod, and a swing rod fixed on the workbench. One end of the transmission rod is connected to the strong flip clamping cylinder, and the other end of the transmission rod is hinged to the middle part of the swing rod. A pressure block is provided at each end of the swing rod. After the strong flip clamping cylinder drives the transmission rod and the swing rod to flip toward the bottom support plate, the two pressure blocks on the swing rod can press the bottom support plate.

10. The energy storage battery liquid cooling box welding clamping tool according to claim 1, 2 or 3, characterized in that: Two water-cooling plates are arranged side by side at intervals on the front end of the workbench. Cooling water flows through the water-cooling plates. The two water-cooling plates are used to abut against the lower surface of the front end of the bottom support plate, so that the bottom support plate can be cooled during welding to prevent deformation of the bottom support plate.

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