A laser CMT combined welding equipment and welding method for battery boxes

Abstract

This invention discloses a laser-CMT combined welding equipment and method for battery boxes. The equipment includes a loading frame, a laser welding robot, and a CMT welding robot, all housed within a safe room. A first clamping platform and a second clamping platform are respectively mounted on both sides of the loading frame. A first clamping assembly and a second clamping assembly are respectively mounted on both ends of the first clamping platform, and a third clamping assembly and a fourth clamping assembly are respectively mounted on both ends of the second clamping platform. All four clamping assemblies cooperate with the CMT welding robot, and the first and third clamping assemblies cooperate with the laser welding robot. Four different semi-finished parts are welded onto the first and second clamping platforms respectively. These four semi-finished parts are then welded into a finished product in one operation on other welding equipment. This effectively reduces the number of welding equipment required, lowers investment costs, and improves production efficiency.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to a laser CMT combined welding equipment and welding method for battery boxes. Background Technology

[0002] As the market share of new energy vehicles increases, so do the performance requirements, especially for range, safety, and charging / discharging speed. This necessitates larger battery capacities and improved reliability and stability for these vehicles. The battery box is the carrier of the power battery, and the demands for lightweight and reliable battery boxes are constantly increasing. Currently, most battery boxes are made of aluminum alloy through welding. Given the numerous welding points, using an assembly line for assembly and welding would increase production line costs. Furthermore, welding on a single welding table would mean that loading materials cannot be done during welding, and vice versa, resulting in low processing efficiency. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a laser CMT combined welding equipment and welding method for battery boxes.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A laser-CMT combined welding equipment for battery boxes includes a loading frame, a positioner, a first clamping table, a second clamping table, a first clamping assembly, a second clamping assembly, a third clamping assembly, a fourth clamping assembly, a laser welding robot, a CMT welding robot, a safety chamber, a base, a rotating seat, and a rotation drive. Both the laser welding robot and the CMT welding robot are fixedly installed inside the safety chamber. The base is fixedly installed inside the safety chamber and located between the laser welding robot and the door of the safety chamber. The rotating seat is rotatably mounted on the base. The rotation drive is fixedly installed on the base and used to drive the rotating seat to rotate. The loading frame is fixedly mounted on the base. A first clamping platform and a second clamping platform are respectively mounted on both sides of the loading frame. The first clamping platform and the second clamping platform are respectively connected to the loading frame through the positioner. The first clamping assembly and the second clamping assembly are respectively mounted on both ends of the first clamping platform. The third clamping assembly and the fourth clamping assembly are respectively mounted on both ends of the second clamping platform. The first clamping assembly, the second clamping assembly, the third clamping assembly and the fourth clamping assembly all cooperate with the CMT welding robot. The first clamping assembly and the third clamping assembly both cooperate with the laser welding robot.

[0006] Further, the first clamping assembly includes a first small clamping component, a second small clamping component, a third small clamping component, a fourth small clamping component, a first large clamping component, and a second large clamping component. The first small clamping component, the second small clamping component, and the first large clamping component are disposed on the same side, and the first large clamping component is disposed between the first small clamping component and the second small clamping component. The third small clamping component, the fourth small clamping component, and the second large clamping component are disposed on the same side, and the second large clamping component is disposed between the third small clamping component and the fourth small clamping component. The second small clamping component and the fourth small clamping component are disposed closer to the second clamping assembly.

[0007] The third clamping assembly includes a fifth small clamping component, a sixth small clamping component, a seventh small clamping component, a third large clamping component, and a fourth large clamping component. The third large clamping component and the fourth large clamping component are fixedly disposed on both sides of the middle part of the second clamping platform. The sixth small clamping component is fixedly disposed on the second clamping platform and located between the third large clamping component and the fourth large clamping component. The fifth small clamping component is fixedly disposed on the end of the second clamping platform. The seventh small clamping component is fixedly disposed on the second clamping platform and located between the third large clamping component and the fourth clamping assembly.

[0008] The first small clamping component, the second small clamping component, the third small clamping component, the fourth small clamping component, the fifth small clamping component, the sixth small clamping component, the seventh small clamping component, the first large clamping component, and the third large clamping component all cooperate with the CMT welding robot, and the second large clamping component and the fourth large clamping component both cooperate with the laser welding robot.

[0009] Further, the first, second, third, fourth, fifth, sixth, and seventh small clamping components each include a connecting seat, an adjusting seat, a first part holder, a first cylinder seat, a second cylinder seat, a first cylinder, a second cylinder, a third cylinder, a first clamping block, a second clamping block, a third clamping block, a fourth clamping block, a pressure plate, and a limiting spring plate. The adjusting seat is disposed on the lower end of the connecting seat, the first cylinder seat is fixedly disposed on the lower end of the adjusting seat, the first part holder is fixedly disposed on the upper end of the adjusting seat, and the second cylinder seat is fixedly disposed on the top of the connecting seat. The first cylinder is fixedly disposed on the first cylinder seat, and its output end is hinged to the lower ends of the first and second clamping blocks. The first and second clamping blocks... The middle parts of the first and second clamping blocks are hinged to the ends of the first cylinder seat. The upper ends of the first and second clamping blocks respectively engage with the two ends of the first part on the first part seat. The first part is connected to the second part. The two sides of the second part are engaged with one end of the third and fourth clamping blocks respectively. The middle parts of the third and fourth clamping blocks are hinged to the second cylinder seat. The other end of the third clamping block is hinged to one end of the second cylinder. The other end of the fourth clamping block is hinged to one end of the third cylinder. The other ends of the second and third cylinders are hinged to the second cylinder seat. A pressure plate that engages with the second part is provided on the end of the fourth clamping block. A limiting spring plate that engages with the second part is fixedly provided on the second cylinder seat. The limiting spring plate and the third clamping block are respectively provided on both sides of the second part.

[0010] Furthermore, both the third and fourth clamping blocks are fixedly equipped with manual levers, a first limiting spring piece that cooperates with the third clamping block is provided on one side of the second cylinder seat, a second limiting spring piece that cooperates with the fourth clamping block is provided on the other side of the second cylinder seat, a first detection sensor that cooperates with the first part is provided on the first part seat, and a second detection sensor that cooperates with the second part is provided on the second cylinder seat.

[0011] Furthermore, the upper end of the connecting seat is hinged to the upper end of the adjusting seat, and an adjusting block is fixedly provided on the lower end of the connecting seat. The adjusting block is provided with an adjusting screw that cooperates with the adjusting seat. The connecting seat is provided with an adjusting groove, and a fastening bolt that is threadedly connected to the adjusting seat is provided in the adjusting groove.

[0012] Furthermore, the second large clamping component includes a nut detection structure, which includes a detection bracket, a mounting sleeve, a limiting sleeve, a detection rod, a detection spring, a limiting ring, and a proximity switch. The mounting sleeve is fixed to the first clamping table by the detection bracket. The limiting sleeve is disposed inside the upper end of the mounting sleeve, and the detection rod is slidably disposed inside the limiting sleeve. The upper end of the detection rod passes through the limiting sleeve and engages with the detection nut, while the lower end of the detection rod passes through the limiting ring and engages with the proximity switch. The proximity switch is fixedly disposed on the lower end of the mounting sleeve. The detection spring is sleeved on the detection rod, with one end pressing against the detection rod and the other end pressing against the limiting ring.

[0013] Furthermore, the second clamping assembly includes a third part holder, a first clamping component, a second clamping component, a third clamping component, a third detection sensor, and a fourth detection sensor. The third part holder, the first clamping component, the second clamping component, and the third clamping component are all fixedly mounted on the first clamping table. The first clamping component fastens the third part to the third part holder, the second clamping component fastens the fourth part to the third part, and the third clamping component fastens the fifth part to the third part. The first clamping component is provided with the third detection sensor for detecting the third part, and the second clamping component is provided with the fourth detection sensor for detecting the fourth part.

[0014] The third clamping component includes a tilting cylinder, a clamping seat, a clamping bracket, a positioning end, a pressing end, a pressing rod, a pressing cylinder, and a fifth detection sensor. The fixed part of the tilting cylinder is fixedly mounted on the first clamping table. The clamping seat is fixedly mounted on the output part of the tilting cylinder. The clamping bracket is fixedly mounted on the clamping seat and used to mount the fifth part. The positioning end is fixedly mounted on the clamping seat and engages with one end of the fifth part. The pressing end is fixedly mounted on one end of the pressing rod and engages with the other end of the fifth part. The middle part of the pressing rod is hinged to the clamping seat. The other end of the pressing rod is hinged to one end of the pressing cylinder. The other end of the pressing cylinder is hinged to the clamping seat. The fifth detection sensor is fixedly mounted on the clamping bracket and engages with the fifth part.

[0015] Furthermore, a safety guard plate is fixedly installed on the loading frame, the first clamping platform and the second clamping platform are respectively installed on both sides of the safety guard plate, a protective cover that cooperates with the rotating seat is fixedly installed on the lower side of the safety guard plate, and the base and the rotating drive component are both installed inside the protective cover.

[0016] Furthermore, two detection blocks are provided on the outer wall of the rotating seat, and the line connecting the two detection blocks passes through the axis of the rotating seat. Two sixth detection sensors are provided on the base, each cooperating with one of the two detection blocks. A worker detection sensor is provided at the door of the safety room.

[0017] A welding method for a battery box, using the aforementioned laser CMT combined welding equipment for a battery box, the welding method comprising the following steps:

[0018] S1: On the first fixture table, workers install welding parts on the first small fixture component, the second small fixture component, the third small fixture component, the fourth small fixture component, the first large fixture component, and the second fixture assembly.

[0019] S2: After installation, the operator moves away from the loading frame and then controls the first small clamp component, the second small clamp component, the third small clamp component, the fourth small clamp component, the first large clamp component and the second clamp assembly to clamp the welded parts. Then, the operator controls the rotary drive to drive the rotary seat to rotate horizontally in the positive direction on the base.

[0020] S3: Start the CMT welding robot to weld the parts on the first small clamp component, the second small clamp component, the third small clamp component, the fourth small clamp component, the first large clamp component, and the second clamp assembly. At the same time, on the second clamp table, workers install welding parts on the fifth small clamp component, the sixth small clamp component, the seventh small clamp component, the third large clamp component, and the fourth clamp assembly.

[0021] S4: When the welding of the parts on the first fixture table is completed, and the installation of the parts on the second fixture table is completed, the operator moves away from the loading frame and controls the fifth small fixture component, the sixth small fixture component, the seventh small fixture component, the third large fixture component and the fourth fixture assembly to clamp the welded parts. Then, the operator controls the rotary drive to drive the rotary seat to rotate horizontally in the opposite direction on the base.

[0022] S5: Start the CMT welding robot to weld the parts of the fifth small clamp component, the sixth small clamp component, the seventh small clamp component, the third large clamp component, and the fourth clamp assembly. Simultaneously, on the first clamping table, workers install the welded parts obtained from welding on the first small clamp component, the second small clamp component, the third small clamp component, the fourth small clamp component, and the first large clamp component into the second large clamp component. Remove the parts from the second clamp assembly, and then install the welded parts on the first small clamp component, the second small clamp component, the third small clamp component, the fourth small clamp component, the first large clamp component, and the second clamp assembly.

[0023] S6: When the welding of the parts on the second fixture table is completed, and the installation of the parts on the first fixture table is completed, the operator moves away from the loading frame, and then controls the first small fixture component, the second small fixture component, the third small fixture component, the fourth small fixture component, the first large fixture component, the second large fixture component and the second fixture assembly to clamp the welded parts, and then controls the rotary drive to drive the rotary seat to rotate horizontally in the positive direction on the base.

[0024] S7: Start the CMT welding robot and the laser welding robot. The CMT welding robot welds the parts on the first small clamping component, the second small clamping component, the third small clamping component, the fourth small clamping component, the first large clamping component, and the second clamping assembly. The laser welding robot welds the parts on the second large clamping component. At the same time, on the second clamping table, workers install the welded parts on the fifth small clamping component, the sixth small clamping component, the seventh small clamping component, and the third large clamping component onto the fourth large clamping component, remove the welded parts from the fourth clamping assembly, and then workers install the welded parts on the fifth small clamping component, the sixth small clamping component, the seventh small clamping component, the third large clamping component, and the fourth clamping assembly.

[0025] S8: When the welding of the parts on the first fixture table is completed, and the installation of the parts on the second fixture table is completed, the operator moves away from the loading frame and controls the fifth small fixture component, the sixth small fixture component, the seventh small fixture component, the third large fixture component, the fourth large fixture component and the fourth fixture assembly to clamp the welded parts. Then, the operator controls the rotary drive to drive the rotary seat to rotate horizontally in the opposite direction on the base.

[0026] S9: Start the CMT welding robot and the laser welding robot. The CMT welding robot welds the parts on the fifth small clamping component, the sixth small clamping component, the seventh small clamping component, the third large clamping component, and the fourth clamping assembly. The laser welding robot welds the parts on the fourth large clamping component. Simultaneously, on the first clamping table, the worker installs the welded parts obtained from welding on the first small clamping component, the second small clamping component, the third small clamping component, the fourth small clamping component, and the first large clamping component into the second large clamping component. Remove the parts from the second clamping assembly. Then, install the welded parts on the first small clamping component, the second small clamping component, the third small clamping component, the fourth small clamping component, the first large clamping component, and the second clamping assembly.

[0027] S10: Repeat steps S6 to S9 for continuous production.

[0028] The beneficial effects of this invention are:

[0029] 1) In this technology, four different semi-finished parts are welded on the first fixture table and the second fixture table respectively. Then, the four different semi-finished parts are welded into a product at one time on other welding equipment. This can effectively reduce the investment in the number of welding equipment and reduce the investment cost. The first fixture table and the second fixture table work at the same time, welding is performed on one side and loading and unloading parts on the other side, which can effectively improve production efficiency.

[0030] 2) In this technology, the nut detection structure can effectively detect the nut. The structure is simple and the detection is convenient.

[0031] 3) In this technology, the third and fourth parts are welded together on the second fixture assembly first, and then the third and fifth parts are welded together. This can effectively prevent interference.

[0032] 4) In this technology, the safety protection plate can separate the two tooling tables, so that the light pollution generated during welding will not affect the workers' loading of materials. Attached Figure Description

[0033] Figure 1 A three-dimensional structural diagram of the safe room;

[0034] Figure 2 A 3D structural diagram of the interior of the safe room;

[0035] Figure 3 This is a diagram showing the connection structure of the positioner on the loading frame;

[0036] Figure 4This is a diagram showing the connection structure of the sixth detection sensor on the base;

[0037] Figure 5 This is a diagram showing the connection structure between the first clamping assembly and the second clamping assembly on the first clamping table.

[0038] Figure 6 This is a diagram showing the connection structure between the third and fourth clamping assemblies on the second clamping table.

[0039] Figure 7 Three-dimensional connection structure for small clamp components Figure 1 ;

[0040] Figure 8 Three-dimensional connection structure for small clamp components Figure 2 ;

[0041] Figure 9 A three-dimensional connection structure diagram of the nut detection structure;

[0042] Figure 10 A diagram showing the internal connection structure of the nut inspection structure;

[0043] Figure 11 A three-dimensional connection structure diagram of the second fixture assembly during the welding of the fifth part;

[0044] Figure 12 This is a three-dimensional connection structure diagram of the second fixture assembly when the fifth part is not welded.

[0045] In the diagram, 1-loading frame, 2-positioner, 3-first clamping platform, 4-second clamping platform, 5-first clamping assembly, 6-second clamping assembly, 7-third clamping assembly, 8-fourth clamping assembly, 9-first small clamping component, 10-second small clamping component, 11-third small clamping component, 12-fourth small clamping component, 13-first large clamping component, 14-second large clamping component, 15-fifth small clamping component, 16-sixth small clamping component, 17-seventh small clamping component, 18-third large clamping component Components, 19-Fourth large clamping component, 20-Connecting seat, 21-Adjusting seat, 22-First part holder, 23-First cylinder holder, 24-Second cylinder holder, 25-First cylinder, 26-Second cylinder, 27-Third cylinder, 28-First clamping block, 29-Second clamping block, 30-Third clamping block, 31-Fourth clamping block, 32-Pressure plate, 33-Limiting spring plate, 34-First part, 35-Second part, 36-Manual lever, 37-First limiting spring, 38-Second limiting spring, 3 9-First detection sensor, 40-Second detection sensor, 41-Adjusting block, 42-Adjusting screw, 43-Adjusting groove, 44-Detection bracket, 45-Mounting sleeve, 46-Limit sleeve, 47-Detection rod, 48-Detection spring, 49-Limit ring, 50-Proximity switch, 51-Detection nut, 52-Third part holder, 53-First clamping component, 54-Second clamping component, 55-Third clamping component, 56-Third detection sensor, 57-Fourth detection sensor, 58-Third part, 59 - Fourth part, 60- Fifth part, 61- Tilting cylinder, 62- Fixture seat, 63- Clamping seat, 64- Positioning end, 65- Clamping end, 66- Clamping rod, 67- Clamping cylinder, 68- Fifth detection sensor, 69- Laser welding robot, 70- CMT welding robot, 71- Safety room, 72- Base, 73- Rotary seat, 74- Rotary drive component, 75- Safety protection plate, 76- Protective cover, 77- Detection block, 78- Sixth detection sensor, 79- Worker detection sensor. Detailed Implementation

[0046] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. 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.

[0047] See Figures 1-12 The present invention provides a technical solution:

[0048] A laser-CMT combined welding equipment for battery boxes includes a loading frame 1, a positioner 2, a first clamping table 3, a second clamping table 4, a first clamping assembly 5, a second clamping assembly 6, a third clamping assembly 7, a fourth clamping assembly 8, a laser welding robot 69, a CMT welding robot 70, a safety chamber 71, a base 72, a rotating seat 73, and a rotation drive 74. The laser welding robot 69 and the CMT welding robot 70 are both fixedly installed inside the safety chamber 71. The base 72 is fixedly installed inside the safety chamber 71 and located between the laser welding robot 69 and the door of the safety chamber 71. The rotating seat 73 is rotatably mounted on the base 72, and the rotation drive 74 is fixedly mounted on the base. A base 72 is used to drive a rotating base 73 to rotate. A loading frame 1 is fixedly mounted on the rotating base 73. A first clamping platform 3 and a second clamping platform 4 are respectively mounted on both sides of the loading frame 1. The first clamping platform 3 and the second clamping platform 4 are respectively connected to the loading frame 1 through a positioner 2. A first clamping assembly 5 and a second clamping assembly 6 are respectively mounted on both ends of the first clamping platform 3. A third clamping assembly 7 and a fourth clamping assembly 8 are respectively mounted on both ends of the second clamping platform 4. The first clamping assembly 5, the second clamping assembly 6, the third clamping assembly 7, and the fourth clamping assembly 8 all cooperate with a CMT welding robot 70. The first clamping assembly 5 and the third clamping assembly 7 both cooperate with a laser welding robot 69. The first clamping platform 3 and the second clamping platform 4 are centrally symmetrically arranged on the loading frame 1. The positioner 2, first clamping assembly 5, second clamping assembly 6, third clamping assembly 7, fourth clamping assembly 8, laser welding robot 69, CMT welding robot 70, and rotary drive 74 are all electrically connected to the control center in the prior art. Under the control of the control center, this welding equipment automatically clamps, welds, and releases parts. The rotary drive 74 is a combination structure of a motor and reducer in the prior art. Under the action of the rotary drive 74, the rotating seat 73 rotates 180° forward or 180° backward on the base 72, thereby realizing the exchange welding of parts on the first clamping table 3 and the second clamping table 4. The laser welding robot 69 and the CMT welding robot 70 are both welding robots in the prior art. The loading frame 1 uses two positioners 2 to mount the first clamping table 3 and the second clamping table 4. The positioners 2 are in the prior art. The control center controls the positioners 2 so that the first clamping table 3 and the second clamping table 4 can rotate on the loading frame 1, facilitating welding by the welding robot. The first clamping assembly 5, the second clamping assembly 6, the third clamping assembly 7, and the fourth clamping assembly 8 form four welding groups, each group producing a semi-finished welded part. All four clamping assemblies are controlled by a control center, which clamps the corresponding parts and releases them after welding is complete.The safety room 71 protects the equipment inside and prevents light pollution generated during welding from affecting the outside.

[0049] In some embodiments, the first clamping assembly 5 includes a first small clamping component 9, a second small clamping component 10, a third small clamping component 11, a fourth small clamping component 12, a first large clamping component 13, and a second large clamping component 14. The first small clamping component 9, the second small clamping component 10, and the first large clamping component 13 are disposed on the same side, with the first large clamping component 13 disposed between the first small clamping component 9 and the second small clamping component 10. The third small clamping component 11, the fourth small clamping component 12, and the second large clamping component 14 are disposed on the same side, with the second large clamping component 14 disposed between the third small clamping component 11 and the fourth small clamping component 12. The second small clamping component 10 and the fourth small clamping component 12 are disposed near the second clamping assembly 6. The third clamping assembly 7 includes a fifth small clamping component 15, a sixth small clamping component 16, a seventh small clamping component 17, a third large clamping component 18, and a fourth large clamping component 14. The clamping components 19, 18, and 19 are fixedly mounted on both sides of the middle of the second clamping platform 4. The sixth small clamping component 16 is fixedly mounted on the second clamping platform 4 and located between the third large clamping component 18 and the fourth large clamping component 19. The fifth small clamping component 15 is fixedly mounted on the end of the second clamping platform 4. The seventh small clamping component 17 is fixedly mounted on the second clamping platform 4 and located between the third large clamping component 18 and the fourth clamping assembly 8. The first small clamping component 9, the second small clamping component 10, the third small clamping component 11, the fourth small clamping component 12, the fifth small clamping component 15, the sixth small clamping component 16, the seventh small clamping component 17, the first large clamping component 13, and the third large clamping component 18 all cooperate with the CMT welding robot 70. The second large clamping component 14 and the fourth large clamping component 19 both cooperate with the laser welding robot 69. In this process, primary welded parts are obtained in the first small clamp component 9, the second small clamp component 10, the third small clamp component 11, the fourth small clamp component 12, the first large clamp component 13, the fifth small clamp component 15, the sixth small clamp component 16, the seventh small clamp component 17, and the third large clamp component 18. On the first clamp assembly 5, the primary welded parts obtained in the first small clamp component 9, the second small clamp component 10, the third small clamp component 11, the fourth small clamp component 12, and the first large clamp component 13 are then assembled and welded at the second large clamp component 14 to obtain secondary welded parts. On the third clamp assembly 7, the primary welded parts obtained in the fifth small clamp component 15, the sixth small clamp component 16, the seventh small clamp component 17, and the third large clamp component 18 are then assembled and welded at the fourth large clamp component 19 to obtain secondary welded parts. The first large clamping component 13, the second large clamping component 14, the third large clamping component 18, and the fourth large clamping component 19 are all existing technologies and are controlled by the control center.The parts on the first small clamping component 9, the second small clamping component 10, the third small clamping component 11, the fourth small clamping component 12, the fifth small clamping component 15, the sixth small clamping component 16, the seventh small clamping component 17, the first large clamping component 13, and the third large clamping component 18 are all welded by the CMT welding robot 70, while the parts on the second large clamping component 14 and the fourth large clamping component 19 are all welded by the laser welding robot 69.

[0050] In some embodiments, the first small clamp component 9, the second small clamp component 10, the third small clamp component 11, the fourth small clamp component 12, the fifth small clamp component 15, the sixth small clamp component 16, and the seventh small clamp component 17 each include a connecting seat 20, an adjusting seat 21, a first part seat 22, a first cylinder seat 23, a second cylinder seat 24, a first cylinder 25, a second cylinder 26, a third cylinder 27, a first clamping block 28, a second clamping block 29, and a third clamping block. 30. Fourth clamping block 31, pressing plate 32, and limiting spring plate 33; adjusting seat 21 is set on the lower end of connecting seat 20; first cylinder seat 23 is fixedly set on the lower end of adjusting seat 21; first part seat 22 is fixedly set on the upper end of adjusting seat 21; second cylinder seat 24 is fixedly set on the top of connecting seat 20; first cylinder 25 is fixedly set on first cylinder seat 23 and its output end is hinged to the lower end of first clamping block 28 and second clamping block 29; first clamping block... The middle portions of both the first locking block 28 and the second locking block 29 are hinged to the end of the first cylinder seat 23. The upper ends of the first locking block 28 and the second locking block 29 respectively mate with both ends of the first part 34 on the first part seat 22. The first part 34 is fitted with a second part 35. The two sides of the second part 35 respectively mate with one end of the third locking block 30 and the fourth locking block 31. The middle portions of the third locking block 30 and the fourth locking block 31 are both hinged to the second cylinder seat 24. The other end is hinged to one end of the second cylinder 26, and the other end of the fourth clamping block 31 is hinged to one end of the third cylinder 27. The other ends of the second cylinder 26 and the third cylinder 27 are hinged to the second cylinder seat 24. A clamping plate 32 that cooperates with the second part 35 is provided on the end of the fourth clamping block 31. A limiting spring plate 33 that cooperates with the second part 35 is fixedly provided on the second cylinder seat 24. The limiting spring plate 33 and the third clamping block 30 are respectively provided on both sides of the second part 35. Among them, the first small clamping component 9, the second small clamping component 10, the third small clamping component 11, the fourth small clamping component 12, the fifth small clamping component 15, the sixth small clamping component 16 and the seventh small clamping component 17 are welded to obtain the same welded parts. The function of the connecting seat 20 is to fix the adjusting seat 21 and the second cylinder seat 24 on the first clamping table 3 or the second clamping table 4. The adjusting seat 21 is used to install the first part seat 22 and the first cylinder seat 23. The first part seat 22 is used to install the first part 34. The first cylinder 25 is fixed on the first cylinder seat 23 and drives the first clamping block 28 and the second clamping block 29 to rotate on the first cylinder seat 23. After the first clamping block 28 and the second clamping block 29 rotate, the first part 34 can be clamped or loosened.The second cylinder seat 24 is used to mount the second cylinder 26 and the third cylinder 27. The second cylinder 26 drives the third clamping block 30 to clamp or loosen one side of the second part 35 from one side, and the third cylinder 27 drives the fourth clamping block 31 to clamp or loosen the other side of the second part 35 from the other side. The pressure plate 32 is fixedly mounted on the fourth clamping block 31 to press the edge side of the second part 35. A groove that mates with the second part 35 is provided on the edge side of the second part 35. The function of the limiting spring plate 33 is to limit the second part 35 to prevent the welded product from tilting and becoming unqualified. The first cylinder 25, the second cylinder 26, and the third cylinder 27 are all cylinders in the prior art and are controlled by solenoid valves. The solenoid valves are electrically connected to and controlled by the control center.

[0051] In some embodiments, a manual lever 36 is fixedly provided on both the third clamping block 30 and the fourth clamping block 31. A first limiting spring 37 cooperating with the third clamping block 30 is provided on one side of the second cylinder seat 24, and a second limiting spring 38 cooperating with the fourth clamping block 31 is provided on the other side of the second cylinder seat 24. A first detection sensor 39 cooperating with the first part 34 is provided on the first part seat 22, and a second detection sensor 40 cooperating with the second part 35 is provided on the second cylinder seat 24. The function of the manual lever 36 is to manually control the third clamping block 30 and the fourth clamping block 31 to clamp the second part 35. This clamping is only temporary. Only when the third clamping block 30 and the fourth clamping block 31 are controlled by the second cylinder 26 and the third cylinder 27 respectively to clamp the second part 35 is it considered a long-term clamping. After the long-term clamping, welding work can be performed. The first detection sensor 39 and the second detection sensor 40 are both existing laser sensors. Both are electrically connected to the control center. After the first detection sensor 39 detects the first part 34, it transmits a signal to the control center, which then controls the first cylinder 25 to clamp the first part 34. Similarly, after the second detection sensor 40 detects the second part 35, it transmits a signal to the control center, which then controls the second cylinder 26 and the third cylinder 27 to clamp the second part 35. If no part is detected, clamping will not occur, and the corresponding sensor will transmit a signal to the control center, which will then trigger an alarm using an existing alarm system.

[0052] In some embodiments, the upper ends of the connecting seat 20 and the adjusting seat 21 are hinged, and an adjusting block 41 is fixedly provided on the lower end of the connecting seat 20. The adjusting block 41 is provided with an adjusting screw 42 that cooperates with the adjusting seat 21. The connecting seat 20 is provided with an adjusting groove 43, and a fastening bolt that is threadedly connected to the adjusting seat 21 is provided in the adjusting groove 43. Since there is a certain angle between the connection relationship between the first part 34 and the second part 35, the adjusting screw 42 and the adjusting block 41 are used to drive the adjusting seat 21 to rotate on the connecting seat 20, so that the corresponding connection angle can be adjusted. After the adjustment is completed, the connecting seat 20 and the adjusting seat 21 are fixed by the fastening bolt. Therefore, the connecting seat 20 must be provided with an adjusting groove 43 to facilitate the sliding of the fastening bolt.

[0053] In some embodiments, the second large clamp component 14 includes a nut detection structure, which includes a detection bracket 44, a mounting sleeve 45, a limiting sleeve 46, a detection rod 47, a detection spring 48, a limiting ring 49, and a proximity switch 50. The mounting sleeve 45 is fixed on the first clamping table 3 by the detection bracket 44. The limiting sleeve 46 is provided inside the upper end of the mounting sleeve 45. The detection rod 47 is slidably arranged inside the limiting sleeve 46. The upper end of the detection rod 47 passes through the limiting sleeve 46 and cooperates with the detection nut 51. The lower end of the detection rod 47 passes through the limiting ring 49 and cooperates with the proximity switch 50. The proximity switch 50 is fixedly arranged on the lower end of the mounting sleeve 45. The detection spring 48 is sleeved on the detection rod 47, with one end pressing against the detection rod 47 and the other end pressing against the limiting ring 49. The function of the detection bracket 44 is to install the mounting sleeve 45 on the first fixture table 3. The mounting sleeve 45 is used to install the limit sleeve 46 and the proximity switch 50. The proximity switch 50 is existing technology and is electrically connected to the control center. The limit sleeve 46 is used to install the detection rod 47, the detection spring 48, and the limit ring 49. Under the action of the detection spring 48 and the limit ring 49, the detection rod 47 extends upward and will not contact the proximity switch 50. When the detection nut 51 is present, the detection nut 51 presses against the detection rod 47, and the detection rod 47 will be detected by the proximity switch 50, indicating that the detection nut 51 is present. When the detection nut 51 is not present, the detection rod 47 will not be pressed and will not be detected by the proximity switch 50, indicating that the detection nut 51 is not present and needs to be installed. After the detection nut 51 is installed, the loading frame 1 will rotate, and welding will then proceed.

[0054] In some embodiments, the second clamping assembly 6 includes a third part holder 52, a first clamping member 53, a second clamping member 54, a third clamping member 55, a third detection sensor 56, and a fourth detection sensor 57. The third part holder 52, the first clamping member 53, the second clamping member 54, and the third clamping member 55 are all fixedly mounted on the first clamping table 3. The first clamping member 53 fastens the third part 58 to the third part holder 52, the second clamping member 54 fastens the fourth part 59 to the third part 58, and the third clamping member 55 fastens the fifth part 60 to the third part 58. The first clamping member 53 is provided with a third detection sensor 56 for detecting the third part 58, and the second clamping member 54 is provided with a fourth detection sensor 57 for detecting the fourth part 59. The third part holder 52 supports the third part 58. The fourth part 59 and the fifth part 60 need to be welded on the third part 58. The first clamping component 53, the second clamping component 54, the third detection sensor 56, and the fourth detection sensor 57 are all existing technologies and are electrically connected to the control center. When the third detection sensor 56 detects the third part 58, it transmits a signal to the control center. The control center controls the first clamping component 53 to clamp the third part 58. When the fourth detection sensor 57 detects the fourth part 59, it transmits a signal to the control center. The control center controls the second clamping component 54 to press the fourth part 59 onto the third part 58. Since the welding robot will be blocked by the third clamping component 55 when welding the third part 58 and the fourth part 59, after the welding between the third part 58 and the fourth part 59 is completed, the third clamping component 55 then presses the fifth part 60 onto the third part 58 for welding.

[0055] In some embodiments, the third clamping component 55 includes a tilting cylinder 61, a clamping seat 62, a clamping seat 63, a positioning end 64, a pressing end 65, a pressing rod 66, a pressing cylinder 67, and a fifth detection sensor 68. The fixing part of the tilting cylinder 61 is fixedly mounted on the first clamping table 3. The clamping seat 62 is fixedly mounted on the output part of the tilting cylinder 61. The clamping seat 63 is fixedly mounted on the clamping seat 62 and is used to mount the fifth part 60. The positioning end 64 is fixedly mounted on the clamping seat 62 and cooperates with one end of the fifth part 60. The pressing end 65 is fixedly mounted on one end of the pressing rod 66 and cooperates with the other end of the fifth part 60. The middle part of the pressing rod 66 is hinged to the clamping seat 62. The other end of the pressing rod 66 is hinged to one end of the pressing cylinder 67. The other end of the pressing cylinder 67 is hinged to the clamping seat 62. The fifth detection sensor 68 is fixedly mounted on the clamping seat 63 and cooperates with the fifth part 60. The tilting cylinder 61, the clamping cylinder 67, and the fifth detection sensor 68 are all existing technologies. The solenoid valves controlling the tilting cylinder 61 and the clamping cylinder 67, as well as the fifth detection sensor 68, are all electrically connected to the control center. The fifth detection sensor 68 is used to detect whether the fifth part 60 exists on the fixture seat 62. The fixture seat 62, the clamping seat 63, the positioning end 64, the clamping end 65, the clamping rod 66, and the clamping cylinder 67 work together to fix the fifth part 60 on the fixture seat 62. After welding, the fifth part 60 is released. After the welding between the third part 58 and the fourth part 59 is completed, the tilting cylinder 61 is controlled to press the fifth part 60 onto the third part 58 for welding. After welding, the clamping cylinder 67 first releases the fifth part 60, and then controls the tilting cylinder 61 to move away from the fifth part 60.

[0056] In some embodiments, a safety guard plate 75 is fixedly installed on the loading frame 1. A first clamping platform 3 and a second clamping platform 4 are respectively installed on both sides of the safety guard plate 75. A protective cover 76, which cooperates with the rotating seat 73, is fixedly installed on the lower side of the safety guard plate 75. The base 72 and the rotating drive component 74 are both installed inside the protective cover 76. The welding process is performed by a robot, while the loading and unloading of parts is done manually by workers. The safety guard plate 75 isolates the light generated during welding, protecting the workers' eyes. The base 72 and the rotating seat 73 rotate relative to each other to prevent workers from accidentally putting their hands between them and injuring themselves. The protective cover 76 protects the workers. Since the rotating drive component 74 generates heat during operation, heat dissipation openings are provided on the protective cover 76 for effective heat dissipation.

[0057] In some embodiments, two detection blocks 77 are provided on the outer wall of the rotating base 73, and the line connecting the two detection blocks 77 passes through the axis of the rotating base 73. Two sixth detection sensors 78 are provided on the base 72, each cooperating with one of the two detection blocks 77. A worker detection sensor 79 is provided at the door of the safety room 71. The sixth detection sensors 78 are laser detection sensors in the prior art and are electrically connected to the control center. The two sixth detection sensors 78 cooperate with the two detection blocks 77 respectively. When the rotating base 73 rotates 180 degrees forward, one detection block 77 cooperates with one sixth detection sensor 78; when the rotating base 73 rotates 180 degrees in the reverse direction, the other detection block 77 cooperates with the other sixth detection sensor 78. When a detection block 77 cooperates with a sixth detection sensor 78, the signal from the sixth detection sensor 78 is transmitted to the control center. The control center controls the rotation drive 74 to stop driving the rotating base 73 to rotate. When the rotating base 73 stops, processing, welding, and parts loading and unloading are performed. The worker detection sensor 79 is an infrared sensor in the prior art. The function of the worker detection sensor 79 is to confirm whether the operator has left the safety room 71. After leaving the safety room 71, the signal is transmitted to the control center, which then controls the rotary drive 74 to drive the rotary seat 73 to rotate.

[0058] A welding method for a battery box, using a laser CMT combined welding equipment for a battery box, includes the following steps:

[0059] (1) On the first fixture table 3, workers install welding parts on the first small fixture component 9, the second small fixture component 10, the third small fixture component 11, the fourth small fixture component 12, the first large fixture component 13, and the second fixture assembly 6.

[0060] (2) After installation, the operator moves away from the loading frame 1 and then controls the first small clamp component 9, the second small clamp component 10, the third small clamp component 11, the fourth small clamp component 12, the first large clamp component 13 and the second clamp assembly 6 to clamp the welded parts. Then, the operator controls the rotary drive component 74 to drive the rotary seat 73 to rotate horizontally 180° on the base 72.

[0061] (3) Start the CMT welding robot 70 to weld the parts on the first small clamping component 9, the second small clamping component 10, the third small clamping component 11, the fourth small clamping component 12, the first large clamping component 13 and the second clamping assembly 6. At the same time, on the second clamping table 4, workers install welding parts on the fifth small clamping component 15, the sixth small clamping component 16, the seventh small clamping component 17, the third large clamping component 18 and the fourth clamping assembly 8.

[0062] (4) When the welding of the parts on the first fixture table 3 is completed, the parts on the second fixture table 4 are installed at the same time. The operator moves away from the loading frame 1 and controls the fifth small fixture component 15, the sixth small fixture component 16, the seventh small fixture component 17, the third large fixture component 18 and the fourth fixture assembly 8 to clamp the welded parts. Then, the operator controls the rotary drive component 74 to drive the rotary seat 73 to rotate horizontally in the opposite direction by 180° on the base 72.

[0063] (5) Start the CMT welding robot 70 to weld the parts of the fifth small clamp component 15, the sixth small clamp component 16, the seventh small clamp component 17, the third large clamp component 18 and the fourth clamp assembly 8. At the same time, on the first clamping table 3, the worker installs the welded parts obtained from welding on the first small clamp component 9, the second small clamp component 10, the third small clamp component 11, the fourth small clamp component 12 and the first large clamp component 13 into the second large clamp component 14. Remove the parts on the second clamp assembly 6, and then install the welded parts on the first small clamp component 9, the second small clamp component 10, the third small clamp component 11, the fourth small clamp component 12, the first large clamp component 13 and the second clamp assembly 6.

[0064] (6) When the welding of the parts on the second fixture table 4 is completed, the parts on the first fixture table 3 are installed at the same time. The operator moves away from the loading frame 1 and then controls the first small fixture component 9, the second small fixture component 10, the third small fixture component 11, the fourth small fixture component 12, the first large fixture component 13, the second large fixture component 14 and the second fixture assembly 6 to clamp the welded parts. Then, the rotary drive component 74 is controlled to drive the rotary seat 73 to rotate horizontally 180° on the base 72.

[0065] (7) Start the CMT welding robot 70 and the laser welding robot 69. The CMT welding robot 70 welds the parts on the first small clamping component 9, the second small clamping component 10, the third small clamping component 11, the fourth small clamping component 12, the first large clamping component 13 and the second clamping assembly 6. The laser welding robot 69 welds the parts on the second large clamping component 14. At the same time, on the second clamping table 4, the worker installs the welded parts on the fifth small clamping component 15, the sixth small clamping component 16, the seventh small clamping component 17 and the third large clamping component 18 onto the fourth large clamping component 19, removes the welded parts on the fourth clamping assembly 8, and then the worker installs the welded parts on the fifth small clamping component 15, the sixth small clamping component 16, the seventh small clamping component 17, the third large clamping component 18 and the fourth clamping assembly 8.

[0066] (8) When the welding of the parts on the first fixture table 3 is completed, the parts on the second fixture table 4 are installed at the same time. The operator moves away from the loading frame 1 and controls the fifth small fixture component 15, the sixth small fixture component 16, the seventh small fixture component 17, the third large fixture component 18, the fourth large fixture component 19 and the fourth fixture assembly 8 to clamp the welded parts. Then, the operator controls the rotary drive component 74 to drive the rotary seat 73 to rotate horizontally in the opposite direction by 180° on the base 72.

[0067] (9) Start the CMT welding robot 70 and the laser welding robot 69. The CMT welding robot 70 welds the parts on the fifth small clamping component 15, the sixth small clamping component 16, the seventh small clamping component 17, the third large clamping component 18 and the fourth clamping assembly 8. The laser welding robot 69 welds the parts on the fourth large clamping component 19. At the same time, on the first clamping table 3, the worker installs the welded parts obtained from welding on the first small clamping component 9, the second small clamping component 10, the third small clamping component 11, the fourth small clamping component 12 and the first large clamping component 13 into the second large clamping component 14. Remove the parts on the second clamping assembly 6. Then install the welded parts on the first small clamping component 9, the second small clamping component 10, the third small clamping component 11, the fourth small clamping component 12, the first large clamping component 13 and the second clamping assembly 6.

[0068] (10) Repeat steps S6 to S9 for continuous production. The CMT welding robot 70 and the laser welding robot 69 will return to their initial positions after each welding operation, and will be restarted when welding is required on the first fixture table 3 or the second fixture table 4.

[0069] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "one end", "top", "middle", "other end", "coaxial", "one side", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0070] In this invention, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "fix", "hinged", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0071] The above description is merely a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the concept described herein through the above teachings or related technologies or knowledge. Modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A laser CMT combined welding equipment for battery boxes, characterized in that: The system includes a loading rack (1), a positioner (2), a first clamping table (3), a second clamping table (4), a first clamping assembly (5), a second clamping assembly (6), a third clamping assembly (7), a fourth clamping assembly (8), a laser welding robot (69), a CMT welding robot (70), a safety house (71), a base (72), a rotating seat (73), and a rotating drive (74). The laser welding robot (69) and the CMT welding robot (70) are both fixedly installed in the safety house (71). The base (72) is fixedly installed in the safety house (71) and is located between the laser welding robot (69) and the door of the safety house (71). Rotary components are mounted on the base (72). The rotating seat (73) is fixedly mounted on the base (72) and used to drive the rotating seat (73) to rotate. The loading frame (1) is fixedly mounted on the rotating seat (73). The first clamping table (3) and the second clamping table (4) are respectively mounted on both sides of the loading frame (1). The first clamping table (3) and the second clamping table (4) are respectively connected to the loading frame (1) through the positioner (2). The first clamping assembly (5) and the second clamping assembly (6) are respectively mounted on both ends of the first clamping table (3). The third clamping assembly (7) and the fourth clamping assembly (8) are respectively mounted on both ends of the second clamping table (4). The first clamping assembly (5), the second clamping assembly (6), the third clamping assembly (7) and the fourth clamping assembly (8) all cooperate with the CMT welding robot (70). The first clamping assembly (5) and the third clamping assembly (7) all cooperate with the laser welding robot (69). The first clamping assembly (5) includes a first small clamping component (9), a second small clamping component (10), a third small clamping component (11) and a fourth small clamping component (12), and the third clamping assembly (7) includes a fifth small clamping component (15), a sixth small clamping component (16) and a seventh small clamping component (17). The first small clamp component (9), the second small clamp component (10), the third small clamp component (11), the fourth small clamp component (12), the fifth small clamp component (15), the sixth small clamp component (16), and the seventh small clamp component (17) all include a connecting seat (20), an adjusting seat (21), a first part seat (22), a first cylinder seat (23), a second cylinder seat (24), a first cylinder (25), a second cylinder (26), a third cylinder (27), a first clamping block (28), a second clamping block (29), a third clamping block (30), and a fourth clamping block (31). The first cylinder seat (23) is fixedly mounted on the lower end of the connecting seat (20), and the first part seat (22) is fixedly mounted on the upper end of the adjusting seat (21). The second cylinder seat (24) is fixedly mounted on the top of the connecting seat (20). The first cylinder (25) is fixedly mounted on the first cylinder seat (23) and its output end is hinged to the lower end of the first clamping block (28) and the second clamping block (29). The first clamping block (28) and the first part seat (29) are fixedly mounted on the lower end of the connecting seat (20). The first part seat (22) is fixedly mounted on the lower end of the adjusting seat (21), and the second part seat (24) is fixedly mounted on the upper end of the adjusting seat (20). The first part seat (25) is fixedly mounted on the first cylinder seat (23) and its output end is hinged to the lower end of the first clamping block (28) and the second clamping block (29). The middle parts of the two clamping blocks (29) are hinged to the ends of the first cylinder seat (23). The upper ends of the first clamping block (28) and the second clamping block (29) respectively engage with the two ends of the first part (34) on the first part seat (22). The first part (34) is connected to the second part (35). The two sides of the second part (35) respectively engage with one end of the third clamping block (30) and the fourth clamping block (31). The middle parts of the third clamping block (30) and the fourth clamping block (31) are both hinged to the second cylinder seat (24). The other side of the third clamping block (30) The end of the fourth clamping block (31) is hinged to one end of the second cylinder (26), and the other end of the fourth clamping block (31) is hinged to one end of the third cylinder (27). The other ends of the second cylinder (26) and the third cylinder (27) are hinged to the second cylinder seat (24). The end of the fourth clamping block (31) is provided with a pressing plate (32) that cooperates with the second part (35). The second cylinder seat (24) is fixedly provided with a limiting spring plate (33) that cooperates with the second part (35). The limiting spring plate (33) and the third clamping block (30) are respectively provided on both sides of the second part (35).

2. The laser CMT combined welding equipment for battery boxes according to claim 1, characterized in that: The first clamping assembly (5) further includes a first large clamping component (13) and a second large clamping component (14). The first small clamping component (9), the second small clamping component (10) and the first large clamping component (13) are arranged on the same side, and the first large clamping component (13) is arranged between the first small clamping component (9) and the second small clamping component (10). The third small clamping component (11), the fourth small clamping component (12) and the second large clamping component (14) are arranged on the same side, and the second large clamping component (14) is arranged between the third small clamping component (11) and the fourth small clamping component (12). The second small clamping component (10) and the fourth small clamping component (12) are arranged close to the side of the second clamping assembly (6). The third clamping assembly (7) further includes a third large clamping component (18) and a fourth large clamping component (19). The third large clamping component (18) and the fourth large clamping component (19) are fixedly disposed on both sides of the middle part of the second clamping table (4). The sixth small clamping component (16) is fixedly disposed on the second clamping table (4) and located between the third large clamping component (18) and the fourth large clamping component (19). The fifth small clamping component (15) is fixedly disposed on the end of the second clamping table (4). The seventh small clamping component (17) is fixedly disposed on the second clamping table (4) and located between the third large clamping component (18) and the fourth clamping assembly (8). The first small clamp component (9), the second small clamp component (10), the third small clamp component (11), the fourth small clamp component (12), the fifth small clamp component (15), the sixth small clamp component (16), the seventh small clamp component (17), the first large clamp component (13), and the third large clamp component (18) all cooperate with the CMT welding robot (70), and the second large clamp component (14) and the fourth large clamp component (19) all cooperate with the laser welding robot (69).

3. The laser CMT combined welding equipment for battery boxes according to claim 2, characterized in that: Both the third clamping block (30) and the fourth clamping block (31) are fixedly provided with manual levers (36). A first limiting spring (37) that cooperates with the third clamping block (30) is provided on one side of the second cylinder seat (24). A second limiting spring (38) that cooperates with the fourth clamping block (31) is provided on the other side of the second cylinder seat (24). A first detection sensor (39) that cooperates with the first part (34) is provided on the first part seat (22). A second detection sensor (40) that cooperates with the second part (35) is provided on the second cylinder seat (24).

4. The laser CMT combined welding equipment for battery boxes according to claim 3, characterized in that: The upper end of the connecting seat (20) is hinged to the upper end of the adjusting seat (21). An adjusting block (41) is fixedly provided on the lower end of the connecting seat (20). An adjusting screw (42) that cooperates with the adjusting seat (21) is provided on the adjusting block (41). An adjusting groove (43) is provided on the connecting seat (20). A fastening bolt that is threadedly connected to the adjusting seat (21) is provided in the adjusting groove (43).

5. The laser CMT combined welding equipment for battery boxes according to claim 4, characterized in that: The second large clamp component (14) includes a nut detection structure, which includes a detection bracket (44), a mounting sleeve (45), a limiting sleeve (46), a detection rod (47), a detection spring (48), a limiting ring (49), and a proximity switch (50). The mounting sleeve (45) is fixed to the first clamp table (3) by the detection bracket (44). The limiting sleeve (46) is provided inside the upper end of the mounting sleeve (45), and the limiting sleeve (46) is slidably arranged inside the limiting sleeve (46). The detection rod (47) is provided, with the upper end of the detection rod (47) passing through the limiting sleeve (46) and cooperating with the detection nut (51). The lower end of the detection rod (47) passes through the limiting ring (49) and cooperates with the proximity switch (50). The proximity switch (50) is fixedly installed on the lower end of the mounting sleeve (45). The detection spring (48) is sleeved on the detection rod (47) with one end pressing against the detection rod (47) and the other end pressing against the limiting ring (49).

6. The laser CMT combined welding equipment for battery boxes according to claim 5, characterized in that: The second clamping assembly (6) includes a third part holder (52), a first clamping component (53), a second clamping component (54), a third clamping component (55), a third detection sensor (56), and a fourth detection sensor (57). The third part holder (52), the first clamping component (53), the second clamping component (54), and the third clamping component (55) are all fixedly mounted on the first clamping table (3). The first clamping component (53) fastens the third part (58) to the third part holder (52), the second clamping component (54) fastens the fourth part (59) to the third part (58), and the third clamping component (55) fastens the fifth part (60) to the third part (58). The first clamping component (53) is provided with the third detection sensor (56) for detecting the third part (58), and the second clamping component (54) is provided with the fourth detection sensor (57) for detecting the fourth part (59). The third clamping component (55) includes a tilting cylinder (61), a clamping seat (62), a clamping seat (63), a positioning end (64), a clamping end (65), a clamping rod (66), a clamping cylinder (67), and a fifth detection sensor (68). The fixing part of the tilting cylinder (61) is fixedly mounted on the first clamping table (3). The clamping seat (62) is fixedly mounted on the output part of the tilting cylinder (61). The clamping seat (63) is fixedly mounted on the clamping seat (62) and is used to install the fifth part (60). The positioning end (64) is fixedly mounted on the clamping seat (65). The clamping seat (62) is mounted on and engages with one end of the fifth part (60). The clamping end (65) is fixedly mounted on one end of the clamping rod (66) and engages with the other end of the fifth part (60). The middle part of the clamping rod (66) is hinged to the clamping seat (62). The other end of the clamping rod (66) is hinged to one end of the clamping cylinder (67). The other end of the clamping cylinder (67) is hinged to the clamping seat (62). The fifth detection sensor (68) is fixedly mounted on the clamping seat (63) and engages with the fifth part (60).

7. The laser CMT combined welding equipment for battery boxes according to claim 2, characterized in that: A safety guard plate (75) is fixedly installed on the loading frame (1). The first clamping table (3) and the second clamping table (4) are respectively installed on both sides of the safety guard plate (75). A protective cover (76) that cooperates with the rotating seat (73) is fixedly installed on the lower side of the safety guard plate (75). The base (72) and the rotating drive component (74) are both installed inside the protective cover (76).

8. A laser CMT combined welding equipment for battery boxes according to claim 2, characterized in that: Two detection blocks (77) are provided on the outer wall of the rotating seat (73). The line connecting the two detection blocks (77) passes through the axis of the rotating seat (73). Two sixth detection sensors (78) are provided on the base (72) respectively, which cooperate with the two detection blocks (77). A worker detection sensor (79) is provided at the door of the safety room (71).

9. A welding method for a battery box, using a laser CMT combined welding equipment for a battery box as described in any one of claims 1-8, characterized in that, The welding method includes the following steps: S1: On the first fixture table (3), the worker installs welding parts on the first small fixture component (9), the second small fixture component (10), the third small fixture component (11), the fourth small fixture component (12), the first large fixture component (13), and the second fixture assembly (6); S2: After installation, the operator moves away from the loading frame (1) and then controls the first small clamp component (9), the second small clamp component (10), the third small clamp component (11), the fourth small clamp component (12), the first large clamp component (13) and the second clamp assembly (6) to clamp the welded parts. Then, the operator controls the rotary drive component (74) to drive the rotary seat (73) to rotate 180° horizontally on the base (72). S3: Start the CMT welding robot (70) to weld the parts on the first small clamping component (9), the second small clamping component (10), the third small clamping component (11), the fourth small clamping component (12), the first large clamping component (13), and the second clamping assembly (6). At the same time, on the second clamping table (4), workers install welding parts on the fifth small clamping component (15), the sixth small clamping component (16), the seventh small clamping component (17), the third large clamping component (18), and the fourth clamping assembly (8). S4: When the welding of the parts on the first fixture table (3) is completed, and the installation of the parts on the second fixture table (4) is completed, the operator moves away from the loading frame (1) and controls the fifth small fixture component (15), the sixth small fixture component (16), the seventh small fixture component (17), the third large fixture component (18) and the fourth fixture assembly (8) to clamp the welded parts. Then, the operator controls the rotary drive component (74) to drive the rotary seat (73) to rotate horizontally in the opposite direction by 180° on the base (72). S5: Start the CMT welding robot (70) to weld the parts of the fifth small clamp component (15), the sixth small clamp component (16), the seventh small clamp component (17), the third large clamp component (18) and the fourth clamp assembly (8). At the same time, on the first clamping table (3), the worker installs the welded parts obtained by welding on the first small clamp component (9), the second small clamp component (10), the third small clamp component (11), the fourth small clamp component (12) and the first large clamp component (13) into the second large clamp component (14), remove the parts on the second clamp assembly (6), and then install the welded parts on the first small clamp component (9), the second small clamp component (10), the third small clamp component (11), the fourth small clamp component (12), the first large clamp component (13) and the second clamp assembly (6). S6: When the welding of the parts on the second fixture table (4) is completed, the parts on the first fixture table (3) are installed. The operator moves away from the loading frame (1) and then controls the first small fixture component (9), the second small fixture component (10), the third small fixture component (11), the fourth small fixture component (12), the first large fixture component (13), the second large fixture component (14) and the second fixture assembly (6) to clamp the welded parts. Then, the rotary drive component (74) drives the rotary seat (73) to rotate 180° horizontally in the forward direction on the base (72). S7: Start the CMT welding robot (70) and the laser welding robot (69). The CMT welding robot (70) welds the parts on the first small clamping component (9), the second small clamping component (10), the third small clamping component (11), the fourth small clamping component (12), the first large clamping component (13), and the second clamping assembly (6). The laser welding robot (69) welds the parts on the second large clamping component (14). At the same time, the laser welding robot welds the parts on the second clamping table. (4) The worker installs the welded parts on the fifth small clamp component (15), the sixth small clamp component (16), the seventh small clamp component (17) and the third large clamp component (18) onto the fourth large clamp component (19), removes the welded parts on the fourth clamp assembly (8), and then the worker installs the welded parts on the fifth small clamp component (15), the sixth small clamp component (16), the seventh small clamp component (17), the third large clamp component (18) and the fourth clamp assembly (8); S8: When the welding of the parts on the first fixture table (3) is completed, and the installation of the parts on the second fixture table (4) is completed, the operator moves away from the loading frame (1) and controls the fifth small fixture component (15), the sixth small fixture component (16), the seventh small fixture component (17), the third large fixture component (18), the fourth large fixture component (19) and the fourth fixture assembly (8) to clamp the welded parts. Then, the rotary drive component (74) is controlled to drive the rotary seat (73) to rotate horizontally in the opposite direction by 180° on the base (72). S9: Start the CMT welding robot (70) and the laser welding robot (69). The CMT welding robot (70) welds the parts on the fifth small clamping component (15), the sixth small clamping component (16), the seventh small clamping component (17), the third large clamping component (18), and the fourth clamping assembly (8). The laser welding robot (69) welds the parts on the fourth large clamping component (19). At the same time, on the first clamping table (3), the worker moves the first small clamping component (70) to the first clamping table (69). 9) The welded parts obtained by welding on the second small clamping component (10), the third small clamping component (11), the fourth small clamping component (12) and the first large clamping component (13) are installed in the second large clamping component (14), the parts on the second clamping assembly (6) are removed, and then the welded parts are installed on the first small clamping component (9), the second small clamping component (10), the third small clamping component (11), the fourth small clamping component (12), the first large clamping component (13) and the second clamping assembly (6); S10: Repeat steps S6 to S9 for continuous production.

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