Power module welding equipment

Abstract

The invention discloses power module welding equipment which comprises a base, a movable plate capable of moving is mounted on the base, four chain wheels are connected through a chain, four limiting welding mechanisms are mounted on the chain, and each limiting welding mechanism comprises four L-shaped plates fixed to the chain and located at the four corners. A laser welding head is installed at the bottom of the L-shaped plate, a rectangular rod which is arranged in a sliding mode and can reset is arranged on the L-shaped plate in a penetrating mode, and a wheel carrier is fixedly connected to the bottom of the rectangular rod. Through cooperation of structures such as an electric push rod, an alignment plate, a rubber suction cup and a pressing wheel, automatic grabbing, alignment and fixing of a cover plate are achieved, and follow-up calibration is not needed; the cover plate is grabbed according to the negative pressure adsorption principle, stability and reliability are achieved, an L-shaped plate is driven to move through chain transmission, an additional driving mechanism is not needed, air is supplied to move a piston to relieve negative pressure, position deviation of the cover plate is avoided, a pressing wheel is matched with an alignment plate, welding quality is ensured, and working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of power supply welding, and in particular to a power supply module welding device. Background Art

[0002] Portable outdoor power bank, also often called portable power station or outdoor power bank, is a highly efficient energy storage device designed to meet the power needs of outdoor activities. Portable outdoor power bank is mainly composed of a shell, a circuit board and a battery, among which the shell is composed of a rectangular shell and a cover plate. After the rectangular shell and the cover plate are snapped together, the connection between the rectangular shell and the cover plate is welded by laser welding to prevent moisture, dust and other external substances from entering the mobile power bank, thereby protecting the safety of the internal circuit and battery.

[0003] The prior art publication number is CN118635671A, which is an outdoor mobile power laser welding device; it includes an equipment frame; a bottom plate is installed on the upper end of the equipment frame, the cross-section of the bottom plate is a T-shaped structure, the vertical section of the bottom plate is provided with a fixing mechanism, and the horizontal section of the bottom plate is provided with a welding mechanism; the present invention pushes the support plate to slide along the guide rail through the pushing part, thereby driving the laser welding assembly to move around the shell to perform welding processing, thereby avoiding interruption of welding, thereby improving the quality of welding, and completing the welding once around a circle, thereby improving the efficiency of shell welding, in addition, the pushing part moves downward to press the cover plate and the rectangular shell through the vacuum suction cup to improve the fit between the cover plate and the rectangular shell, and at the same time, the pushing part pushes the support plate downward through the pressure plate, and the support plate pushes the roller shaft to press against the cover plate through the support and the push-pull rod to further improve the fit between the cover plate and the rectangular shell, thereby improving the welding quality, and thereby improving the sealing performance of the shell.

[0004] The deficiency of the above-mentioned prior art is that the cover plate and the rectangular shell are fitted together by pressing against each other through the roller and the cover plate, which will cause other parts to warp up after welding. Since it is inconvenient to press other sides to fit the rectangular shell during welding of this part, the welding quality is poor, and each side needs to be welded separately, which reduces the efficiency of the battery shell welding process. For this reason, the present application proposes a power module welding device. Summary of the invention

[0005] The purpose of the present invention is to solve the above technical problems and to propose a power module welding device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A power module welding device comprises a base, a movable plate is mounted on the base, and an electric push rod is mounted on the movable plate: The output end of the electric push rod is movably connected with a lifting plate, and the bottom of the lifting plate is rotatably connected with four first shaft rods, and sprockets are installed on the four first shaft rods. The four sprockets are connected by chains, and four limiting welding mechanisms are installed on the chain, and the limiting welding mechanism includes four L-shaped plates fixed on the chain and located at four corners, and a laser welding head is installed at the bottom of the L-shaped plate. A rectangular rod with a sliding arrangement and capable of being reset is penetrated through the L-shaped plate, and a wheel frame is fixedly connected to the bottom of the rectangular rod, and a pressure wheel is rotatably installed on the wheel frame. A plurality of adsorption piston cylinders are installed at the bottom of the lifting plate, and a piston ring is slidably connected in the adsorption piston cylinder, and a first spring is fixed to the piston ring and the adsorption piston cylinder, and the inner wall of the piston ring is fixedly connected with a vertical pipe, and the bottom of the vertical pipe is fixedly connected with a rubber suction cup communicated with it, and an air supply mechanism capable of supplying air to the rubber suction cup is provided between the rectangular rod and the lifting plate.

[0007] Preferably, two brackets are installed on the base, and electric slide rails are installed on the upper ends of the two brackets. Matching electric sliders are slidably connected to the electric slide rails, and the movable plate is installed on the two electric sliders.

[0008] Preferably, the output end of the electric push rod is fixedly connected to a first piston cylinder, a first movable piston is slidably connected inside the first piston cylinder, a second spring is fixed to the first movable piston and the first piston cylinder, a pull rod is fixed to the bottom of the first movable piston, and the pull rod is fixedly connected to the upper end of the lifting plate.

[0009] Preferably, it also includes a driving mechanism for driving the first shaft rod to rotate, the driving mechanism includes a second shaft rod fixedly connected to one of the first shaft rods, the second shaft rod passes through the lifting plate and is rotatably connected thereto, a gearbox is installed on the lifting plate, and synchronous wheels are installed on the shaft rod of the gearbox and the second shaft rod, the two synchronous wheels are connected by a synchronous belt, a second piston cylinder is installed on the lifting plate, the second piston cylinder is connected to the first piston cylinder through a first hose, a second movable piston is slidably connected in the second piston cylinder, a driving rod is fixedly connected to the second movable piston, a connecting block is fixed on the driving rod, a gear is installed on the shaft end of the gearbox, a rack plate meshing with the gear is slidably connected to the lifting plate, and the rack plate is fixedly connected to the connecting block.

[0010] Preferably, a rectangular block is fixed to the upper end of the rectangular rod, and a third spring is fixed to the rectangular block and the L-shaped plate.

[0011] Preferably, the air supply mechanism includes an air supply piston cylinder fixed at the bottom of the lifting plate, the air supply piston cylinder is connected to the adsorption piston cylinder through a second hose, an air supply movable piston is slidably connected inside the air supply piston cylinder, a vertical rod is fixed to the bottom of the air supply movable piston, and the vertical rod is fixedly connected to the rectangular block.

[0012] Preferably, the wheel frame is fixed with an alignment plate connected thereto upwards, and a cut surface is provided on the bottom of the alignment plate and on an end away from the wheel frame.

[0013] Preferably, a short tube is installed on the adsorption piston cylinder, and a one-way valve is installed on the short tube.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The working output end of the electric push rod moves downward so that the cut surface and the plane on the alignment plate are against the cover plate, that is, the cover plate can be limited by the four alignment plates so that it is restricted between the four alignment plates. Due to the setting of the alignment plates, the position of the cover plate has been calibrated when grabbing the cover plate, so the cover plate will be aligned when it is against the fixed shell, and no subsequent calibration is required.

[0015] 2. The output end of the electric push rod moves downward and the rubber suction cup cannot move downward. At this time, relative movement occurs between the piston ring and the adsorption piston cylinder. At this time, the first spring is compressed. Because of the reaction force, the vertical tube squeezes the rubber suction cup so that it can be against the cover plate with a larger area. Since the air is discharged from the adsorption piston cylinder, the interior is in a negative pressure state at this time. As the electric push rod moves upward and resets, the rubber suction cup will be tightly sucked on the cover plate, thereby achieving the capture of the cover plate.

[0016] 3. As the output end of the electric push rod continues to move downward, the vertical pipe drives the piston ring to continue to move upward until it cannot move. At this time, the L-shaped plate and its auxiliary structures move into place, that is, the laser welding head is relative to the gap between the rectangular shell and the cover plate but does not interfere with each other. The bottom of the pressure wheel is located below the cover plate to facilitate subsequent welding work.

[0017] 4. Then, the first movable piston and the first piston cylinder move relative to each other, so that the hydraulic oil in the first piston cylinder can be transported to the second piston cylinder through the first hose, so that the connecting block can move, and the movement of the connecting block drives the rack plate to move, and the second shaft rod can be rotated through transmission, and the rotation of the second shaft rod drives the rotation of the first shaft rod. Through the transmission of the chain and the cooperation of multiple sprockets, the stable rotation of the chain can be realized, and the rotation of the chain can drive the L-shaped plates distributed at the four corners to move, without the need for an additional driving mechanism.

[0018] 5. The bottom of the pressure wheel is located below the cover plate. The movement of the chain drives the L-shaped plate to move, and the movement of the L-shaped plate drives the rectangular rod to move. At this time, the alignment plate is against the cover plate and the rectangular shell. Therefore, when the pressure wheel is against the side of the cover plate, it will not drive the cover plate to move.

[0019] 6. As the chain drives the L-shaped plate to move, the pressure wheel moves up, driving the wheel frame, rectangular rod, rectangular block and vertical rod to move up. The vertical rod moves up, driving the air supply piston to move up. In this way, the air in the air supply piston cylinder can be transported to the adsorption piston cylinder through the second hose. At this time, the adsorption piston cylinder is no longer in a negative pressure state, that is, the rubber suction cup no longer adsorbs the cover plate. Under the action of the four alignment plates, the cover plate and the rectangular shell can be calibrated and limited to avoid deformation of the rubber suction cup adsorbed on the cover plate, which causes the position of the cover plate to shift. This can further ensure the quality of subsequent welding.

[0020] 7. The pressure wheel drives the wheel frame to move upward, and the third spring is stretched at this time, so that the pressure wheel can stably resist the cover plate, and cooperate with the alignment plate to limit the cover plate. The laser welding head can weld the rectangular shell and the cover plate together, that is to say, the rectangular shell and the cover plate can be welded from four sides at the same time, which can greatly improve the work efficiency and ensure that the four sides of the cover plate and the rectangular shell can be tightly against each other, thereby ensuring the quality of welding.

[0021] To summarize, the present invention realizes automatic grabbing, alignment and fixation of the cover plate through the cooperation of structures such as the electric push rod, alignment plate, rubber suction cup and pressure wheel, without the need for subsequent calibration; the cover plate is grabbed stably and reliably by utilizing the negative pressure adsorption principle, and the chain transmission drives the L-shaped plate to move without the need for an additional driving mechanism. The air supply moves the piston to release the negative pressure to avoid the position deviation of the cover plate, and the pressure wheel cooperates with the alignment plate to ensure welding quality and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a structural schematic diagram of a power module welding device proposed by the present invention; Figure 2 This is a rear view of a power module welding device proposed by the present invention; Figure 3 This is a structural schematic diagram of a lifting plate in a power module welding device proposed by the present invention; Figure 4 A rear view of a lifting plate in a power module welding device proposed by the present invention; Figure 5 A front view of a lifting plate in a power module welding device proposed by the present invention; Figure 6 This is a schematic diagram of the structure of the first piston cylinder in a power module welding device proposed by the present invention; Figure 7 A bottom view of a lifting plate in a power module welding device proposed by the present invention; Figure 8 This is a structural schematic diagram of the adsorption piston cylinder in a power module welding device proposed by the present invention; Fig. 9 This is a schematic diagram of the structure of the adsorption piston cylinder in the power module welding equipment proposed by the present invention.

[0023] In the figure: 1 base, 2 bracket, 3 electric slide rail, 4 electric slider, 5 moving plate, 6 electric push rod, 7 first piston cylinder, 8 pull rod, 9 lifting plate, 10 first hose, 11 gearbox, 12 synchronous wheel, 13 synchronous belt, 14 second piston cylinder, 15 connecting block, 16 rack plate, 17 gear, 18 sprocket, 19 chain, 20 L-type plate, 21 second shaft rod, 22 first shaft rod, 23 alignment plate, 24 adsorption piston cylinder, 25 rubber suction cup, 26 second hose, 27 air supply piston cylinder, 28 laser welding head, 29 second spring, 30 driving rod, 31 first movable piston, 32 second movable piston, 33 vertical pipe, 34 wheel frame, 35 pressure wheel, 36 piston ring, 37 third spring, 38 rectangular rod, 39 vertical rod, 40 air supply movable piston, 41 first spring, 42 rectangular block. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Reference Figure 1-Figure 9 A power module welding device includes a base 1, on which a movable plate 5 is installed, wherein two brackets 2 are installed on the base 1, and electric slide rails 3 are installed on the upper ends of the two brackets 2. The electric slide rails 3 are slidably connected with matching electric sliders 4, the movable plate 5 is installed on the two electric sliders 4, and the movable plate 5 is installed with an electric push rod 6.

[0026] The output end of the electric push rod 6 is movably connected to the lifting plate 9, and the output end of the electric push rod 6 is fixedly connected to the first piston cylinder 7, and the first movable piston 31 is slidably connected in the first piston cylinder. The second spring 29 is fixed to the first movable piston 31 and the first piston cylinder 7, and the bottom of the first movable piston 31 is fixed to the pull rod 8, and the pull rod 8 is fixedly connected to the upper end of the lifting plate 9. The bottom of the lifting plate 9 is rotatably connected to four first shaft rods 22, and sprockets 18 are installed on the four first shaft rods 22. The four sprockets 18 are connected by chains 19. Each first shaft rod 22 can also be installed with two sprockets 18 distributed up and down, so that two chains 19 are required for transmission. When the L-shaped plate 20 is installed on the chain 19, it is more stable.

[0027] Among them, it also includes a driving mechanism for driving the first shaft rod 22 to rotate, the driving mechanism includes a second shaft rod 21 fixedly connected to one of the first shaft rods 22, the second shaft rod 21 passes through the lifting plate 9 and is rotatably connected thereto, a gearbox 11 is installed on the lifting plate 9, and a synchronous wheel 12 is installed on the shaft rod of the gearbox 11 and the second shaft rod 21, and the two synchronous wheels 12 are connected by a synchronous belt 13, a second piston cylinder 14 is installed on the lifting plate 9, the second piston cylinder 14 is connected to the first piston cylinder 7 through a first hose 10, a second movable piston 32 is slidably connected in the second piston cylinder 14, a driving rod 30 is fixedly connected to the second movable piston 32, a connecting block 15 is fixedly connected to the driving rod 30, a gear 17 is installed on the shaft end of the gearbox 11, a rack plate 16 meshing with the gear 17 is slidably connected to the lifting plate 9, and the rack plate 16 is fixedly connected to the connecting block 15.

[0028] Four limiting welding mechanisms are installed on the chain 19, and the limiting welding mechanisms include four L-shaped plates 20 fixed on the chain 19 and located at four corners. A laser welding head 28 is installed at the bottom of the L-shaped plate 20. A sliding and resettable rectangular rod 38 is penetrated through the L-shaped plate 20. A rectangular block 42 is fixed to the upper end of the rectangular rod 38, and a third spring 37 is fixed to the rectangular block 42 and the L-shaped plate 20.

[0029] The bottom of the rectangular rod 38 is fixedly connected to a wheel frame 34, and the wheel frame 34 is fixedly connected to an alignment plate 23 upward. The bottom of the alignment plate 23 and the end away from the wheel frame 34 are provided with cut surfaces to facilitate the positioning and adsorption of the cover plate to ensure the accuracy when it is subsequently connected to the rectangular shell, and the cover plate placed on the rectangular shell can also be aligned with the rectangular shell.

[0030] A pressure wheel 35 is rotatably mounted on the wheel frame 34, and a plurality of adsorption piston cylinders 24 are mounted at the bottom of the lifting plate 9, and a short tube is mounted on the adsorption piston cylinder 24, and a one-way valve is mounted on the short tube. The one-way valve only allows the air in the adsorption piston cylinder 24 to be discharged through the short tube, wherein the short tube and the one-way valve are not shown in the figure; a piston ring 36 is slidably connected inside the adsorption piston cylinder 24, and a first spring 41 is fixed to the piston ring 36 and the adsorption piston cylinder 24, and a vertical pipe 33 is fixedly connected to the inner wall of the piston ring 36, and a rubber suction cup 25 connected thereto is fixedly connected to the bottom of the vertical pipe 33, and a through hole communicating with the vertical pipe 33 is provided at the bottom of the rubber suction cup 25.

[0031] An air supply mechanism capable of supplying air to the rubber suction cup 25 is provided between the rectangular rod 38 and the lifting plate 9. The air supply mechanism includes an air supply piston cylinder 27 fixed to the bottom of the lifting plate 9. The air supply piston cylinder 27 is connected to the adsorption piston cylinder 24 through a second hose 26. An air supply movable piston 40 is slidably connected inside the air supply piston cylinder 27. A vertical rod 39 is fixed to the bottom of the air supply movable piston 40, and the vertical rod 39 is fixedly connected to the rectangular block 42.

[0032] Among them, a fixture for clamping the rectangular shell can be installed on the base 1 to ensure the stability of the rectangular shell. Therefore, when the cover plate and the rectangular shell are welded together, the rectangular shell is first fixed, and a platform for placing the cover plate is provided on the base 1; The electric slider 4 moves on the electric slide rail 3, driving the moving plate 5 to move. The moving plate 5 moves and drives the electric push rod 6 and the lifting plate 9 to move to the top of the cover plate. Then the electric push rod 6 is started, and the working output end of the electric push rod 6 moves down, so that the first piston cylinder 7, the pull rod 8, the lifting plate 9, the alignment plate 23 and the plurality of rubber suction cups 25 move down. Then the cut surface and the plane on the alignment plate 23 successively abut against the cover plate, that is, the cover plate can be limited by the four alignment plates 23 so that it is limited between the four alignment plates 23. Then the rubber suction cups 25 are moved downward. The rubber suction cup 25 abuts against the cover plate. As the output end of the electric push rod 6 moves downward and the rubber suction cup 25 cannot move downward, relative movement occurs between the piston ring 36 and the adsorption piston cylinder 24. At this time, the first spring 41 is compressed. Because the reaction force causes the vertical tube 33 to squeeze the rubber suction cup 25 so that it abuts against the cover plate in a larger area, so that the cover plate can be effectively and stably grasped. The piston ring 36 moves upward to squeeze the air and discharge it through the short tube and the one-way valve. It should be noted that when used to grasp the cover plate, the output end of the electric push rod 6 only needs to extend a short distance; Then the output end of the electric push rod 6 moves upward and resets. Since the air is discharged from the suction piston cylinder 24, the interior is in a negative pressure state at this time. As the electric push rod 6 moves upward and resets, the rubber suction cup 25 will be tightly sucked on the cover plate, thus achieving the capture of the cover plate; It should be noted that the third spring 37 is arranged so that even if the suction piston cylinder 24 is in a negative pressure state, a large amount of air in the air supply piston cylinder 27 will not be sucked into the suction piston cylinder 24, thereby preventing the negative pressure suction force at the rubber suction cup 25 from being reduced and causing the cover plate to be unable to be grasped; Next, the electric slider 4 moves and resets on the electric slide rail 3, and moves to the top of the clamped rectangular shell. The output end of the electric push rod 6 moves down again, so that the lifting plate 9 and the captured cover plate move down. Finally, the cover plate abuts against the rectangular shell. Due to the setting of the alignment plate 23, the position of the cover plate has been calibrated when the cover plate is captured. Therefore, when the cover plate abuts against the fixed shell, it will be aligned, and no subsequent calibration is required. As the output end of the electric push rod 6 continues to move downward, the vertical pipe 33 drives the piston ring 36 to continue to move upward until it cannot move. At this time, the L-shaped plate 20 and the auxiliary structure thereon move into place, that is, the laser welding head 28 is opposite to the gap between the rectangular shell and the cover plate but does not abut against it, and the bottom of the pressure wheel 35 is located below the cover plate for subsequent work; Then, the first movable piston 31 and the first piston cylinder 7 move relative to each other, so that the hydraulic oil in the first piston cylinder 7 can be transported to the second piston cylinder 14 through the first hose 10. The hydraulic oil in the second piston cylinder 14 increases and drives the second movable piston 32, the driving rod 30 and the connecting block 15 to move. The movement of the connecting block 15 drives the rack plate 16 to move. The movement of the rack plate 16 drives the gear 17 to rotate. The synchronous wheel 12 rotates through the transmission of the gearbox 11. The second shaft rod 21 rotates through the transmission of the synchronous belt 13. The rotation of the second shaft rod 21 drives the first shaft rod 22 to rotate. The transmission of the chain 19 cooperates with multiple sprockets 18 to achieve stable rotation of the chain 19. The rotation of the chain 19 can drive the L-shaped plates 20 distributed at the four corners to move. At this time, the laser welding head 28 is opposite to the gap between the rectangular shell and the cover plate but does not contact each other. The bottom of the pressure wheel 35 is located below the cover plate. The movement of the chain 19 drives the L-shaped plate 20 to move, and the movement of the L-shaped plate 20 drives the rectangular rod 38 to move. At this time, the alignment plate 23 contacts the cover plate and the rectangular shell. Therefore, when the pressure wheel 35 contacts the side of the cover plate, it will not drive the cover plate to move. As the chain 19 drives the L-shaped plate 20 to move, the pressure wheel 35 moves upward, driving the wheel frame 34, the rectangular rod 38, the rectangular block 42 and the vertical rod 39 to move upward, and the vertical rod 39 moves upward, driving the air supply piston 40 to move upward, so that the air in the air supply piston cylinder 27 can be transported to the adsorption piston cylinder 24 through the second hose 26. At this time, the adsorption piston cylinder 24 is no longer in a negative pressure state, that is, the rubber suction cup 25 no longer adsorbs the cover plate. Under the action of the four alignment plates 23, the cover plate and the rectangular shell can be calibrated and limited to avoid deformation of the rubber suction cup 25 adsorbed on the cover plate, which causes the position of the cover plate to shift, so as to further ensure the quality of subsequent welding; The pressure wheel 35 drives the wheel frame 34 to move upward, and the third spring 37 is stretched at this time, so that the pressure wheel 35 can stably abut against the cover plate, and cooperate with the alignment plate 23 to limit the cover plate, and the laser welding head 28 can weld the rectangular shell and the cover plate together, that is to say, the rectangular shell and the cover plate can be welded from four sides at the same time, which can greatly improve work efficiency and ensure that the four sides of the cover plate and the rectangular shell can be tightly abutted, thereby ensuring the quality of welding.

[0033] After welding is completed, the electric push rod 6 is started to reset its output end, and the staff moves up the four pressure wheels 35, so as to drive the air supply moving piston 40 to move up again, so that the air in the air supply piston cylinder 27 can be transported to the adsorption piston cylinder 24 through the second hose 26. At this time, the adsorption piston cylinder 24 is no longer in a negative pressure state, and the battery shell after welding can be removed; Then proceed to the next cycle and do the welding work.

[0034] In addition, the present invention can adapt to rectangular shells and cover plates of different sizes by adjusting the position and number of the L-shaped plates 20 on the chain 19, thereby improving the versatility and flexibility of the device.

[0035] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A power module welding device, comprising a base (1), a movable plate (5) being mounted on the base (1), an electric push rod (6) being mounted on the movable plate (5), characterized in that: The output end of the electric push rod (6) is movably connected to a lifting plate (9), and the bottom of the lifting plate (9) is rotatably connected to four first shafts (22), and sprockets (18) are installed on the four first shafts (22). The four sprockets (18) are connected by a chain (19), and the chain (19) is equipped with four limit welding mechanisms, and the limit welding mechanism includes four L-shaped plates (20) fixed on the chain (19) and located at four corners, and a laser welding head (28) is installed at the bottom of the L-shaped plate (20), and a rectangular rod (38) that is slidably arranged and can be reset is penetrated through the L-shaped plate (20), and the rectangular rod (38) is provided on the L-shaped plate (20). The bottom of the rod (38) is fixedly connected to a wheel frame (34), a pressure wheel (35) is rotatably mounted on the wheel frame (34), a plurality of adsorption piston cylinders (24) are mounted on the bottom of the lifting plate (9), a piston ring (36) is slidably connected inside the adsorption piston cylinder (24), a first spring (41) is fixed to the piston ring (36) and the adsorption piston cylinder (24), a vertical pipe (33) is fixedly connected to the inner wall of the piston ring (36), a rubber suction cup (25) in communication with the vertical pipe (33) is fixedly connected to the bottom of the vertical pipe (33), and an air supply mechanism capable of supplying air to the rubber suction cup (25) is provided between the rectangular rod (38) and the lifting plate (9).

2. A power module welding device according to claim 1, characterized in that: Two brackets (2) are mounted on the base (1), and electric slide rails (3) are mounted on the upper ends of the two brackets (2). Matching electric sliders (4) are slidably connected to the electric slide rails (3), and the moving plate (5) is mounted on the two electric sliders (4).

3. A power module welding device according to claim 1, characterized in that: The output end of the electric push rod (6) is fixedly connected to a first piston cylinder (7), a first movable piston (31) is slidably connected inside the first piston cylinder (7), a second spring (29) is fixed to the first movable piston (31) and the first piston cylinder (7), a pull rod (8) is fixed to the bottom of the first movable piston (31), and the pull rod (8) is fixedly connected to the upper end of the lifting plate (9).

4. A power module welding device according to claim 3, characterized in that: The invention also comprises a driving mechanism for driving the first shaft (22) to rotate, the driving mechanism comprising a second shaft (21) fixedly connected to one of the first shafts (22), the second shaft (21) passing through the lifting plate (9) and being rotationally connected thereto, the lifting plate (9) being mounted with a gearbox (11), the shaft of the gearbox (11) and the second shaft (21) being mounted with synchronous wheels (12), the two synchronous wheels (12) being connected via a synchronous belt (13), the lifting plate (9) being mounted with a second piston cylinder (14), the The second piston cylinder (14) is connected to the first piston cylinder (7) via a first hose (10); a second movable piston (32) is slidably connected inside the second piston cylinder (14); a driving rod (30) is fixedly connected to the second movable piston (32); a connecting block (15) is fixedly connected to the driving rod (30); a gear (17) is mounted on the shaft end of the gearbox (11); a rack plate (16) meshing with the gear (17) is slidably connected to the lifting plate (9); and the rack plate (16) is fixedly connected to the connecting block (15).

5. The power module welding equipment according to claim 1, characterized in that: A rectangular block (42) is fixed to the upper end of the rectangular rod (38), and a third spring (37) is fixed to the rectangular block (42) and the L-shaped plate (20).

6. A power module welding device according to claim 5, characterized in that: The air supply mechanism comprises an air supply piston cylinder (27) fixed to the bottom of the lifting plate (9), the air supply piston cylinder (27) being connected to the adsorption piston cylinder (24) via a second hose (26), an air supply movable piston (40) being slidably connected inside the air supply piston cylinder (27), a vertical rod (39) being fixed to the bottom of the air supply movable piston (40), and the vertical rod (39) being fixedly connected to the rectangular block (42).

7. The power module welding equipment according to claim 1, characterized in that: The wheel frame (34) is fixed with an alignment plate (23) connected thereto upwards, and a cut surface is provided on the bottom of the alignment plate (23) and on an end away from the wheel frame (34).

8. The power module welding equipment according to claim 1, characterized in that: A short tube is installed on the adsorption piston cylinder (24), and a one-way valve is installed on the short tube.

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