High-power capacitor energy storage type multi-point gantry row welding machine

Abstract

The invention discloses a high-power capacitor energy storage type multi-point gantry row welding machine, which belongs to the technical field of welding and comprises a capacitor cabinet, a plurality of welding stations are arranged on the peripheral side of the capacitor cabinet in a surrounding manner, and welding machines are arranged in the welding stations; the welding device further comprises a connecting frame which extends to the bottoms of one sides of the multiple welding stations, and the peripheral areas of the welding stations are supported through the connecting frame. According to the multi-station synchronous welding device, through the designed supporting mechanism, the uniform supporting effect can be achieved when a single workpiece is subjected to multi-station synchronous welding through multi-angle supporting at the top of the connecting frame, through arrangement of a capacitor cabinet, the instantaneous welding current can be improved, the requirement for the welding hot melting temperature of different workpieces is met, and the welding efficiency is improved. And the welding supporting stability of the multi-station part is improved through multi-point supporting of the supporting mechanism, and welding deviation is reduced.

Description

Technical Field

[0001] This invention belongs to the field of welding technology, and in particular relates to a high-power capacitor energy storage type multi-point gantry welding machine. Background Technology

[0002] Multi-point gantry welding machines are generally used for batch welding of large metal structural parts. The welding machine usually achieves welding by generating resistance heat between welding electrodes through alternating current. The capacitor energy storage cabinet can charge the capacitor bank by rectified power supply during non-welding cycles. When the welding signal is triggered, the stored energy is released through thyristors or silicon controlled rectifiers to form a high-amplitude, short-pulse DC current, which completes the heating and welding of the weld point in a very short time, improving the welding adaptability.

[0003] In related technologies, due to welding angle and tooling shape issues during the welding of large parts with multiple holes, the welded parts are prone to deformation or misalignment of support points after heating. Especially when welding at multiple stations simultaneously, the support force at some stations is insufficient, causing weld seam offset. It is difficult to adjust the support angle of each weld point simultaneously, thus affecting the coordination and accuracy of multi-station welding, and there is room for improvement. Summary of the Invention

[0004] The purpose of this invention is to solve the problem that insufficient support force at some stations during synchronous welding at multiple stations causes weld seam displacement and makes it difficult to adjust the support angle of each weld point synchronously. Therefore, a high-power capacitor energy storage type multi-point gantry welding machine is proposed.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A high-power capacitor energy storage type multi-point gantry welding machine includes a capacitor cabinet, with multiple welding stations arranged around the capacitor cabinet, and welding machines installed in each welding station. It also includes: a connecting frame that extends to the bottom of one side of multiple welding stations, supporting the perimeter area of ​​the welding stations; The support mechanism is slidably connected to the top of the connecting frame. The support mechanism is slidably connected to the welding fixture of the welding station. A lifting mechanism is provided on one side of the support mechanism. The lifting mechanism is installed on one side of the top of the connecting frame. The support mechanism includes multiple abutting fixtures. The abutting fixtures have irregular abutting surfaces that match the welding area of ​​the workpiece to be processed. The abutting fixtures improve the abutting strength with the welding area of ​​the workpiece to be processed. A buffer mechanism is connected to the bottom of the support mechanism and slidably connected to the top of the connecting frame. The buffer mechanism adapts to the adjustment of the longitudinal height of the support mechanism. An angle control mechanism is connected to the bottom of multiple support mechanisms, and controls the support angle of the top support mechanism.

[0006] As a further description of the above technical solution: The support mechanism also includes: A ring seat is connected to the top of the buffer mechanism. The ring seat has a cavity, and a sliding ring block is slidably connected in the cavity. A threaded sleeve is connected to the top of the sliding ring block. Both sides of the top of the cavity are provided with stroke grooves. The threaded sleeve is slidably connected in the stroke grooves. A fine-tuning screw is threadedly connected in the threaded sleeve. There is a locking clamp between the fine-tuning screw and the threaded sleeve. A guide sleeve is connected to one side of the ring seat. A guide rod is slidably connected inside the guide sleeve. A first spring is sleeved on the outside of the guide rod. The two ends of the first spring are respectively connected to the end of the guide rod and one side of the guide sleeve. The guide rod is inserted into a limiting groove opened on the bottom side of the ring seat cavity.

[0007] As a further description of the above technical solution: It also includes: purge nozzles, with multiple purge nozzles connected in a ring around the abutment fixture.

[0008] As a further description of the above technical solution: A connecting pipe is embedded between the fine-tuning screw and the threaded sleeve. A venting ring is connected to the top of the connecting pipe, and liquid is delivered to the medium cavity of the abutting tool through the venting ring.

[0009] As a further description of the above technical solution: The lifting mechanism includes: A threaded screw is rotatably connected to a movable groove opened at the top of the connecting frame via a rotating shaft and bearings. The movable seat is connected to the threaded screw. A hinge block is connected to the top of the movable seat. A connecting rod is rotatably connected to one side of the hinge block. A lifting sleeve is hinged to the other end of the connecting rod. The lifting sleeve is slidably connected to the outside of the buffer mechanism. The movement of the lifting sleeve pushes the top support mechanism to contact the part to be welded.

[0010] As a further description of the above technical solution: Also includes: A driven bevel gear is connected to the outside of the threaded screw. The driven bevel gear meshes with a driving bevel gear. A rotating rod is connected to one side of the driving bevel gear through a rod body. A bearing seat is sleeved on the outside of the rod body. The bearing seat is connected to one side of the inner cavity of the movable slot. The rotating rod rotates to make the movable seat move outside the threaded screw.

[0011] As a further description of the above technical solution: Also includes: Contact bumps, multiple contact bumps are arranged around the top of the lifting sleeve.

[0012] As a further description of the above technical solution: The buffer mechanism includes: A fixing sleeve is attached to the top of the angle control mechanism; The telescopic tube is slidably connected to the top cavity of the fixed sleeve, and the other end of the telescopic tube is connected to the bottom of the ring seat; The second spring is sleeved outside the telescopic tube, and its two ends are respectively connected to the top of the fixed sleeve and one side of the bottom of the ring seat.

[0013] As a further description of the above technical solution: Also includes: A gasket is attached to the outside of the vent ring and seals the gap between the gasket and the abutment tool. A gas-liquid slip ring is fitted outside the fixed sleeve, and cooling gas is sent into the contact tool through the connecting pipe.

[0014] As a further description of the above technical solution: The angle control mechanism includes: Sprockets, multiple sprockets are rotatably connected to the bottom of the fixed sleeve at corresponding positions, and the multiple sprockets are connected to each other by synchronous chain belt drive; Driven gear, at least one driven gear is connected to the top of the sprocket at the corresponding position, a drive gear is engaged on the driven side, a drive unit is installed on the top of the drive gear, the drive unit is connected to the top of the connecting frame through a mounting plate, and the relative contact angle between the sprocket and the support mechanism is adjusted synchronously by the drive unit.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In this invention, the designed support mechanism can achieve uniform support effect when a single workpiece is simultaneously welded at multiple stations by supporting it at multiple angles on the top of the connecting frame. Furthermore, the setting of the capacitor cabinet can increase the instantaneous welding current and meet the requirements of the welding hot melt temperature for different workpieces. This is beneficial to improve the welding support stability of multi-station parts through the multi-point support of the support mechanism and reduce welding offset.

[0016] 2. In this invention, the abutting fixture can support the bottom position of the part to be welded by its own angle. By rotating, the abutting point of the abutting fixture can be adjusted circumferentially around the threaded sleeve. Furthermore, by pulling the guide rod out of the limiting groove and pulling the slip ring block to slide in the ring seat, the guide rod can adaptively adjust the fulcrum position. The support mechanism can be adjusted in angle, position and height in multiple directions to form a multi-point distributed support structure, which effectively offsets the thermal stress deformation during the welding of large workpieces. Moreover, through the combined design of the buffer mechanism and the support mechanism, the support structure has an adaptive buffer function when subjected to changes in welding load, reducing the risk of workpiece surface deformation.

[0017] 3. In this invention, through the designed angle control mechanism, when it is necessary to adjust the relative angle of the top abutment fixture, the drive unit can be controlled to work. The rotation of the drive unit can drive the drive gear to rotate, the rotation of the drive gear can drive the driven gear to rotate, and the rotation of the driven gear can drive the fixed sleeve and the top abutment fixture to rotate. Multiple sprockets are rotated synchronously by the synchronous chain belt to control the abutment fixture to be adjusted synchronously, so as to adapt to the multi-contact part support control and improve the support effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a high-power capacitor energy storage type multi-point gantry welding machine proposed in this invention; Figure 2 This is a side view of the connecting frame structure of a high-power capacitor energy storage type multi-point gantry welding machine proposed in this invention. Figure 3 The present invention proposes Figure 2 Enlarged structural diagram of section A; Figure 4 This is a top view of the connecting frame structure of a high-power capacitor energy storage type multi-point gantry welding machine proposed in this invention. Figure 5 The present invention proposes Figure 4 Enlarged structural diagram of section B; Figure 6 This is a schematic diagram of the disassembled support mechanism of a high-power capacitor energy storage type multi-point gantry welding machine proposed in this invention. Figure 7 This is a schematic diagram of the buffer mechanism structure of a high-power capacitor energy storage type multi-point gantry welding machine proposed in this invention; Figure 8 This is a schematic diagram of the support mechanism of a high-power capacitor energy storage type multi-point gantry welding machine proposed in this invention. Figure 9 This is a schematic diagram of the transverse structure of the connecting frame of a high-power capacitor energy storage type multi-point gantry welding machine proposed in this invention. Figure 10 The present invention proposes Figure 9 An enlarged structural diagram of section C.

[0019] Legend: 1. Capacitor cabinet; 2. Welding station; 3. Connecting frame; 4. Support mechanism; 401. Abutment fixture; 402. Purge nozzle; 403. Slip ring block; 404. Limiting groove; 405. Threaded sleeve; 406. Fine-tuning screw; 407. Washer ring; 408. Vent ring; 409. Guide sleeve; 410. Guide rod; 411. First spring; 412. Ring seat; 5. Lifting mechanism; 501. Threaded screw; 502. Moving seat; 5 03. Hinge block; 504. Connecting rod; 505. Driven bevel gear; 506. Driven bevel gear; 507. Rotating rod; 508. Lifting sleeve; 509. Contact protrusion; 6. Angle control mechanism; 601. Sprocket; 602. Driven gear; 603. Drive gear; 604. Drive unit; 605. Synchronous chain belt; 7. Buffer mechanism; 701. Fixed sleeve; 702. Second spring; 703. Gas-liquid slip ring; 704. Telescopic tube. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Please see Figures 1-10 The present invention provides a technical solution: a high-power capacitor energy storage type multi-point gantry welding machine, including a capacitor cabinet 1, multiple welding stations 2 arranged around the capacitor cabinet 1, and a welding machine installed in the welding station 2. It also includes: a connecting frame 3, which extends to the bottom of one side of multiple welding stations 2 and supports the surrounding area of ​​the welding station 2; The support mechanism 4 is slidably connected to the top of the connecting frame 3. The support mechanism 4 is slidably connected to the welding fixture of the welding station 2. A lifting mechanism 5 is provided on one side of the support mechanism 4. The lifting mechanism 5 is installed on the top side of the connecting frame 3. The support mechanism 4 includes multiple abutting fixtures 401. The abutting fixtures 401 have irregular abutting surfaces that match the welding area of ​​the workpiece to be processed. The abutting fixtures 401 improve the abutting strength with the welding area of ​​the workpiece to be processed. The buffer mechanism 7 is connected to the bottom of the support mechanism 4 and is slidably connected to the top of the connecting frame 3. The buffer mechanism 7 is adapted to the adjustment of the longitudinal height of the support mechanism 4. An angle control mechanism 6 is connected to the bottom of multiple support mechanisms 4, and the support angle of the top support mechanism 4 is controlled by the angle control mechanism 6.

[0022] Specifically: Through the designed support mechanism 4, a uniform support effect can be achieved when a single workpiece is simultaneously welded at multiple stations by supporting it at multiple angles on the top of the connecting frame 3. Furthermore, the setting of the capacitor cabinet 1 can increase the instantaneous welding current and meet the requirements of the welding hot melt temperature for different workpieces. This is beneficial to improve the welding support stability of multi-station parts through the multi-point support of the support mechanism 4 and reduce welding offset.

[0023] Please see Figures 6-8 Supporting mechanism 4 also includes: The ring seat 412 is connected to the top of the buffer mechanism 7. The ring seat 412 has a cavity, and a sliding ring block 403 is slidably connected in the cavity. A threaded sleeve 405 is connected to the top of the sliding ring block 403. Both sides of the top of the cavity are provided with stroke grooves. The threaded sleeve 405 is slidably connected in the stroke grooves. A fine adjustment screw 406 is threadedly connected in the threaded sleeve 405. A locking clamp is provided between the fine adjustment screw 406 and the threaded sleeve 405. A guide sleeve 409 is connected to one side of the ring seat 412. A guide rod 410 is slidably connected inside the guide sleeve 409. A first spring 411 is sleeved on the outside of the guide rod 410. The two ends of the first spring 411 are respectively connected to the end of the guide rod 410 and one side of the guide sleeve 409. The guide rod 410 is inserted into the limiting groove 404 opened on the bottom side of the cavity of the ring seat 412. A purge nozzle 402, multiple purge nozzles 402 are connected around the abutment tool 401. A connecting pipe is embedded between the fine adjustment screw 406 and the threaded sleeve 405. A venting ring 408 is connected to the top of the connecting pipe. Liquid is delivered to the medium cavity of the abutment tool 401 through the venting ring 408.

[0024] Specifically: Through the designed support structure, when the parts to be welded are fed into the corresponding welding station 2 by the external feeding robot, in order to match the welding angle and weld hole position of the large parts, the abutment fixture 401 can support the bottom position of the parts to be welded by its own angle, which helps to reduce the heating deformation caused by lack of support and improve welding stability. Furthermore, through the designed abutting fixture 401, the abutting fixture 401 can be raised and lowered within the threaded sleeve 405 by turning the fine-tuning screw 406, thereby achieving fine adjustment of the abutting height. Moreover, by rotating, the abutting point of the abutting fixture 401 can be adjusted circumferentially around the threaded sleeve 405. Furthermore, by pulling the guide rod 410 out of the limiting groove 404 and pulling the slip ring block 403 to slide within the ring seat 412, the guide rod 410 can adaptively adjust the fulcrum position to adapt to the angle fine-tuning matching of different irregular surfaces.

[0025] Please see Figures 4-6 The lifting mechanism 5 includes: The threaded screw 501 is rotatably connected to the movable groove opened at the top of the connecting frame 3 via a rotating shaft and bearing; The movable seat 502 is connected to the threaded screw 501. The top of the movable seat 502 is connected to the hinge block 503. One side of the hinge block 503 is rotatably connected to the connecting rod 504. The other end of the connecting rod 504 is hinged to the lifting sleeve 508. The lifting sleeve 508 is slidably connected to the outside of the buffer mechanism 7. The movement of the lifting sleeve 508 pushes the top support mechanism 4 to contact the part to be welded. The movable seat 502 moves by engaging with the threaded groove on the outside of the threaded screw 501 through its internal groove; Also includes: Driven bevel gear 505 is connected to the outside of threaded screw 501. Driven bevel gear 505 meshes with driving bevel gear 506. One side of driving bevel gear 506 is connected to rotating rod 507 through rod body. A bearing seat is sleeved on the outside of rod body. The bearing seat is connected to one side of the inner cavity of the movable groove. The movable seat 502 moves outside of threaded screw 501 by rotating rotating rod 507. Contact bumps 509, multiple contact bumps 509 are arranged around the top of the lifting sleeve 508.

[0026] Specifically: Rotating the rotating rod 507 can drive the driving bevel gear 506 to rotate, which in turn drives the driven bevel gear 505 to rotate, which in turn drives the threaded screw 501 to rotate, which in turn drives the moving seat 502 to move, which in turn drives the top hinge block 503 to pull the connecting rod 504, which in turn drives the other end of the connecting rod 504 to move upward, which in turn drives the top contact protrusion 509 to press the ring seat 412, which in turn pulls the buffer mechanism 7 to unfold, thereby enabling the adaptation capability of the outer curved surface of the workpiece to be processed by controlling the overall height of the contact fixture 401 between multiple workstations.

[0027] Buffer mechanism 7 includes: Fixed sleeve 701 is connected to the top of angle control mechanism 6; The telescopic tube 704 is slidably connected to the top cavity of the fixed sleeve 701, and the other end of the telescopic tube 704 is connected to the bottom of the ring seat 412; The second spring 702 is sleeved on the outside of the telescopic tube 704, and the two ends of the second spring 702 are respectively connected to the top of the fixed sleeve 701 and the bottom side of the ring seat 412; Gasket 407 is connected to the outside of vent ring 408 and seals the gap between it and the abutting tool 401. The gas-liquid slip ring 703 is sleeved on the outside of the fixed sleeve 701. The cooling gas is sent into the contact tool 401 through the connecting pipe connected to the gas-liquid slip ring 703.

[0028] Specifically: Through the designed buffer structure, the telescopic tube 704 can slide within the fixed sleeve 701 to adapt to the abutment support position of the top support mechanism 4. When the telescopic tube 704 is extended, it can pull the second spring 702. The second spring 702 can use its own elasticity to improve the movement stability of the top support mechanism 4 and avoid swaying or deviation.

[0029] Angle control mechanism 6 includes: Sprockets 601, multiple sprockets 601 are rotatably connected to the bottom of the fixed sleeve 701 at the corresponding position, and the multiple sprockets 601 are connected to each other by synchronous chain belt 605. Driven gear 602, at least one driven gear 602 is connected to the top of the sprocket 601 at the corresponding position, a drive gear 603 is meshed on the driven side, a drive unit 604 is mounted on the top of the drive gear 603, the drive unit 604 is connected to the top of the connecting frame 3 through a mounting plate, and the relative contact angle between the sprocket 601 and the support mechanism 4 is adjusted synchronously by the drive unit 604. Specifically: Through the designed angle control mechanism 6, when it is necessary to adjust the relative angle of the top abutment fixture 401, the drive unit 604 can be controlled to work. The rotation of the drive unit 604 can drive the drive gear 603 to rotate, the rotation of the drive gear 603 can drive the driven gear 602 to rotate, and the rotation of the driven gear 602 can drive the fixed sleeve 701 and the top abutment fixture 401 to rotate. Thus, the rotation of multiple sprockets 601 can be adjusted synchronously through the synchronous chain belt 605 to control the synchronous adjustment of the abutment fixture 401, so as to adapt to the multi-contact part support control and improve the support effect.

[0030] Working principle: In use, the abutting fixture 401 can be raised and lowered within the threaded sleeve 405 by turning the fine-tuning screw 406 to achieve fine adjustment of the abutting height. Furthermore, by rotating, the abutting point of the abutting fixture 401 can be adjusted circumferentially around the threaded sleeve 405. By pulling the guide rod 410 out of the limiting groove 404 and pulling the slip ring block 403 to slide within the ring seat 412, the guide rod 410 can adaptively adjust the fulcrum position. Rotating the rotating rod 507 can drive the driving bevel gear 506 to rotate, which in turn drives the driven bevel gear 505 to rotate. The driven bevel gear 505 then drives the threaded screw 501 to rotate. The rotation of the threaded screw 501 can move the moving seat 502. The movement of the moving seat 502 can drive the top hinge block 503 to pull the connecting rod 504. One end of the connecting rod 504 is pulled, which can drive the other end to move upward. When the other end of the connecting rod 504 moves upward, it can drive the top contact protrusion 509 to press the ring seat 412. The ring seat 412 can be pulled by force to unfold the buffer mechanism 7. The telescopic tube 704 slides within the fixed sleeve 701 to adapt to the abutment support position of the top support mechanism 4. When the telescopic tube 704 is extended, it can pull the second spring 702. By controlling the operation of the drive unit 604, the rotation of the drive unit 604 can drive the drive gear 603 to rotate, the rotation of the drive gear 603 can drive the driven gear 602 to rotate, and the rotation of the driven gear 602 can drive the fixed sleeve 701 and the top abutment tool 401 to rotate. The rotation of multiple sprockets 601 is adjusted synchronously by the synchronous chain belt 605 to control the synchronous adjustment of the abutment tool 401.

[0031] In this invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; the term "multiple" refers to two or more unless otherwise explicitly defined. The terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; "linking" can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-power capacitor energy storage type multi-point gantry welding machine, comprising a capacitor cabinet (1), characterized in that, The capacitor cabinet (1) is surrounded by multiple welding stations (2), and welding machines are installed in the welding stations (2); It also includes: a connecting frame (3), which extends to the bottom of one side of multiple welding stations (2) and supports the periphery of the welding stations (2) through the connecting frame (3); The support mechanism (4) is slidably connected to the top of the connecting frame (3). The support mechanism (4) is slidably connected to the welding fixture of the welding station (2). A lifting mechanism (5) is provided on one side of the support mechanism (4). The lifting mechanism (5) is installed on the top side of the connecting frame (3). The support mechanism (4) includes multiple abutting fixtures (401). The abutting fixtures (401) have irregular abutting surfaces that match the welding area of ​​the workpiece to be processed. The abutting strength with the welding area of ​​the workpiece to be processed is improved by the abutting fixtures (401). A buffer mechanism (7) is connected to the bottom of the support mechanism (4). The buffer mechanism (7) is slidably connected to the top of the connecting frame (3). The buffer mechanism (7) adapts to the adjustment of the longitudinal height of the support mechanism (4). An angle control mechanism (6) is connected to the bottom of multiple support mechanisms (4) and controls the support angle of the top support mechanism (4) through the angle control mechanism (6).

2. The high-power capacitor energy storage type multi-point gantry welding machine according to claim 1, characterized in that, The support mechanism (4) also includes: A ring seat (412) is connected to the top of the buffer mechanism (7). The ring seat (412) has a cavity. A sliding ring block (403) is slidably connected in the cavity. A threaded sleeve (405) is connected to the top of the sliding ring block (403). Stroke grooves are provided on both sides of the top of the cavity. The threaded sleeve (405) is slidably connected in the stroke groove. A fine adjustment screw (406) is threadedly connected inside the threaded sleeve (405). A locking clamp is provided between the fine adjustment screw (406) and the threaded sleeve (405). A guide sleeve (409) is connected to one side of the ring seat (412). A guide rod (410) is slidably connected inside the guide sleeve (409). A first spring (411) is sleeved on the outside of the guide rod (410). The two ends of the first spring (411) are connected to the end of the guide rod (410) and one side of the guide sleeve (409), respectively. The guide rod (410) is inserted into the limiting groove (404) opened on the bottom side of the cavity of the ring seat (412).

3. A high-power capacitor-storage multi-point gantry welding machine according to claim 2, characterized in that, Also includes: A purge nozzle (402), a plurality of purge nozzles (402) are connected around the abutment tool (401).

4. A high-power capacitor-storage multi-point gantry welding machine according to claim 3, characterized in that, A connecting pipe is embedded between the fine-tuning screw (406) and the threaded sleeve (405), and a venting ring (408) is connected to the top of the connecting pipe. Liquid is delivered to the medium cavity of the abutting tool (401) through the venting ring (408).

5. A high-power capacitor-storage multi-point gantry welding machine according to claim 4, characterized in that, The lifting mechanism (5) includes: The threaded screw (501) is rotatably connected to the movable groove opened at the top of the connecting frame (3) via a rotating shaft and bearing; The movable seat (502) is connected to the outside of the threaded screw (501). The top of the movable seat (502) is connected to the hinge block (503). One side of the hinge block (503) is rotatably connected to the connecting rod (504). The other end of the connecting rod (504) is hinged to the lifting sleeve (508). The lifting sleeve (508) is slidably connected to the outside of the buffer mechanism (7). The movement of the lifting sleeve (508) pushes the top support mechanism (4) to contact the part to be welded.

6. A high-power capacitor-storage multi-point gantry welding machine according to claim 5, characterized in that, Also includes: Driven bevel gear (505) is connected to the outside of the threaded screw (501). Driven bevel gear (505) meshes with driving bevel gear (506). A rotating rod (507) is connected to one side of the driving bevel gear (506) through a rod body. A bearing seat is sleeved on the outside of the rod body. The bearing seat is connected to one side of the inner cavity of the moving slot. The rotating rod (507) rotates to make the moving seat (502) move outside the threaded screw (501).

7. A high-power capacitor-storage multi-point gantry welding machine according to claim 6, characterized in that, Also includes: Contact bumps (509), multiple contact bumps (509) are arranged around the top of the lifting sleeve (508).

8. A high-power capacitor-storage multi-point gantry welding machine according to claim 4, characterized in that, The buffer mechanism (7) includes: A fixing sleeve (701) is connected to the top of the angle control mechanism (6); The telescopic tube (704) is slidably connected to the top cavity of the fixed sleeve (701), and the other end of the telescopic tube (704) is connected to the bottom of the ring seat (412); The second spring (702) is sleeved outside the telescopic tube (704), and the two ends of the second spring (702) are respectively connected to the top of the fixed sleeve (701) and the bottom side of the ring seat (412).

9. A high-power capacitor-storage multi-point gantry welding machine according to claim 8, characterized in that, Also includes: Gasket (407) is connected to the outside of the vent ring (408) and the gap between the gasket (407) and the abutment tool (401) is closed. A gas-liquid slip ring (703) is sleeved on the outside of the fixed sleeve (701). The gas-liquid slip ring (703) is connected to the connecting pipe to send the cooling gas into the contact tool (401).

10. A high-power capacitor-storage multi-point gantry welding machine according to claim 1, characterized in that, The angle control mechanism (6) includes: A sprocket (601) is rotatably connected to the bottom of a fixed sleeve (701) at a corresponding position. The multiple sprockets (601) are connected to each other by a synchronous chain belt (605). Driven gear (602), at least one driven gear (602) is connected to the top of the sprocket (601) at the corresponding position, a drive gear (603) is engaged on the driven side, a drive unit (604) is installed on the top of the drive gear (603), the drive unit (604) is connected to the top of the connecting frame (3) through a mounting plate, and the relative contact angle between the sprocket (601) and the support mechanism (4) is adjusted synchronously by the drive unit (604).

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