Wire harness welding equipment

Abstract

This application discloses a wire harness welding device, which includes a mounting component, a conveyor mechanism, a clamping mechanism, and a welding mechanism. The mounting component is mounted on the conveyor mechanism. The clamping mechanism includes two clamping arms and a driving member, which is mounted on the mounting component and is configured to drive the two clamping arms to move closer or further apart to clamp a first wire harness. The conveyor mechanism drives the clamping mechanism to move back and forth between a mounting base and a second wire harness via the mounting component. The welding mechanism includes a welding torch and a mounting base. The mounting base includes a first mounting part, a second mounting part, and a fastener. The first mounting part is connected to the mounting component, and the welding torch is mounted on the second mounting part. Either the first or second mounting part forms a mounting hole, and the other forms an arc-shaped groove. The mounting hole and the arc-shaped groove are aligned, and the fastener locks the first and second mounting parts by fitting into the arc-shaped groove and the mounting hole. After the fastener is unlocked, the second mounting part can rotate along a vertical plane to adjust the angle of the welding torch.

Description

Technical Field

[0001] This application relates to the field of wire harness welding technology, and more particularly to wire harness welding apparatus. Background Technology

[0002] With the development of technology, car rearview mirrors have heating functions. During the production of these rearview mirrors, the rearview mirror housing needs to be pre-installed on the workbench first, and then the sensor connected to the second wiring harness is assembled on the housing. Subsequently, the first wiring harness is soldered to the second wiring harness.

[0003] Existing wire harness welding equipment uses two robotic arms. One arm houses the clamping mechanism for holding the first wire harness, while the other arm houses the welding torch. When one robotic arm moves the clamping mechanism and the first wire harness it holds to a position where they are in contact with the second wire harness, the other robotic arm adjusts the angle of the welding torch based on the positions of the housing, the second wire harness, and the clamping mechanism, aligning the welding nozzle with the point where the first and second wire harnesses meet. Clearly, this design, where two robotic arms separately drive the clamping mechanism and the welding torch, inevitably increases the footprint of the wire harness welding equipment, hindering its overall layout. Utility Model Content

[0004] To address the aforementioned technical problems and achieve at least one advantage of this application, this application provides a wire harness welding apparatus. The wire harness welding apparatus welds a first wire harness to a second wire harness assembled on a housing using a welding wire. The housing is placed on a processing table, and at least one mounting seat is installed around the periphery of the processing table. The first wire harness is pre-positioned on the mounting seat. The wire harness welding apparatus includes:

[0005] Installation components;

[0006] A conveyor belt mechanism, wherein the mounting component is mounted on the conveyor belt mechanism;

[0007] A clamping mechanism includes two clamping arms and a driving component. The driving component is mounted on the mounting member. Both clamping arms are connected to the driving component. The driving component is configured to drive the two clamping arms to move closer or further apart from each other to clamp the first wire harness. The conveying mechanism drives the clamping mechanism to move back and forth between the mounting base and the second wire harness through the mounting member.

[0008] A welding mechanism includes a welding torch and an assembly base. The assembly base includes a first assembly part and a second assembly part. The second assembly part is angularly adjustable and mounted on the first assembly part. The welding torch has a welding nozzle that is aligned with the weld seam between the first wire harness and the second wire harness. The welding torch is used to heat the welding wire, and the molten droplets connect the second wire harness to the first wire harness.

[0009] According to one embodiment of this application, the welding mechanism further includes a height adjustment member, which is mounted on the mounting member, and the first assembly part is connected to the height adjustment member. The height adjustment member is used to drive the assembly seat to move vertically.

[0010] According to one embodiment of this application, the mounting base further includes a fastener. The first mounting part is connected to the mounting member, and the welding torch is mounted on the second mounting part. Either the first mounting part or the second mounting part forms a mounting hole, and the other forms an arc-shaped groove. The mounting hole and the arc-shaped groove are aligned. The fastener locks the first mounting part and the second mounting part by fitting into the arc-shaped groove and the mounting hole. After the fastener is unlocked, the second mounting part can rotate along a vertical plane. The first mounting part forms a sliding groove, and the second mounting part slidably engages with the sliding groove formed by the first mounting part.

[0011] According to one embodiment of this application, the wire harness welding device further includes a fume collection mechanism, which includes a fume collection pipe and a negative pressure forming member. The fume collection pipe is installed on the second assembly part, wherein the fume collection pipe forms a fume collection port. The fume collection port is close to the welding nozzle and faces the weld seam between the first wire harness and the second wire harness. One end of the fume collection pipe away from forming the fume collection port is connected to a purifier. The negative pressure forming member is installed on the fume collection pipe and is used to draw in the gas at the fume collection port. The fume generated during the welding process is discharged from the fume collection port through the fume collection pipe to the purifier under the negative pressure.

[0012] According to one embodiment of this application, the wire harness welding device further includes a welding wire supply mechanism, which includes a wire supply tube and a connecting member. The connecting member is installed on the welding torch, and the wire supply tube is installed on the connecting member. The wire supply tube forms a wire outlet and a wire inlet, wherein the wire outlet is close to the welding nozzle, and the welding wire passes through the wire supply tube from the wire inlet and extends out from the wire outlet. The welding wire extending from the wire outlet extends to below the welding nozzle.

[0013] According to one embodiment of this application, the welding wire supply mechanism includes a wire feeder and a wire storage component. The wire storage component includes a wire release roller, on which a coiled welding wire is sleeved. The wire release roller is rotatably mounted on the mounting component. The coiled welding wire has a free end, which passes through the wire supply tube from the wire inlet and extends out from the wire outlet. The wire feeder is mounted on the wire supply tube to feed the welding wire from the wire inlet to the wire outlet.

[0014] According to one embodiment of this application, the connecting member includes a first connector, a second connector, and a locking fastener. The first connector is installed on the welding torch, and the wire feed tube is installed on the second connector. The first connector forms a first connecting hole, and the second connector forms a second connecting hole. The locking fastener locks the second connector and the first connector by fitting into the first connecting hole and the second connecting hole. After the locking fastener is unlocked, the second connector can rotate along a vertical plane, causing the second connector to drive the wire feed tube to rotate.

[0015] According to one embodiment of this application, the wire harness welding device further includes a wire pressing mechanism, which includes a lower pressing member and a lifting member. The lifting member is mounted on the mounting member, and the lower pressing member is connected to the lifting member. The lifting member can drive the lower pressing member to move vertically, and the bottom wall of the lower pressing member can abut against one end of the first wire harness held by the clamping arm near the second wire harness.

[0016] According to one embodiment of this application, the bottom wall of the pressing member forms a limiting groove, the pressing member moves downward to move the wire harness into the limiting groove, and the inner wall of the pressing member forming the limiting groove is in contact with the outer wall of the first wire harness.

[0017] According to one embodiment of this application, the mounting base includes a fixed part, a movable part, and an elastic member. The fixed part is fixedly mounted on the periphery of the processing table, and the movable part is rotatably mounted on the periphery of the processing table. The first wire harness is clamped between the fixed part and the movable part. The two ends of the elastic member are respectively connected to the movable part and the processing table. When the end of the movable part away from the fixed part is pressed down, the fixed part and the movable part release the first wire harness. The elastic member undergoes elastic deformation and has a tendency to drive the movable part to reset. The wire harness welding device further includes a holding mechanism. The holding mechanism includes a pressure member and a driving member. The driving member is mounted on the mounting member, and the pressure member is connected to the driving member. The driving member is used to drive the pressure member to move up and down. When the two clamping arms clamp the first wire harness clamped by the fixed part and the movable part, the pressure member is located directly above the end of the movable part away from the fixed part. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the first wire harness, the housing, the second wire harness, the processing table, and the mounting base of this application is shown.

[0019] Figure 2 A diagram illustrating a usage scenario of the wire harness welding apparatus described in this application is shown.

[0020] Figure 3A partial structural schematic diagram of the wire harness welding device described in this application is shown.

[0021] Figure 4 A schematic diagram of the structure of the mounting component, the clamping mechanism, the wire pressing mechanism, and the releasing mechanism described in this application is shown.

[0022] Figure 5 An exploded view of a portion of the wire harness welding apparatus described in this application is shown.

[0023] Figure 6 An exploded view of a portion of the structure of the welding wire supply mechanism described in this application is shown. Detailed Implementation

[0024] The following description is intended to disclose this application and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of this application defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of this application.

[0025] Those skilled in the art should understand that, in the disclosure of this application, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this application.

[0026] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0027] refer to Figures 1 to 2 A preferred embodiment of the wire harness welding apparatus according to this application will be described in detail below. The wire harness welding apparatus welds a first wire harness 91 to a second wire harness 93 assembled on a housing 92 using welding wire, wherein the housing 92 is placed on a processing table 94. At least one mounting base 95 is installed around the periphery of the processing table 94, and the first wire harness 91 is pre-positioned on the mounting base 95.

[0028] refer to Figures 2 to 4 Specifically, the wire harness welding device includes a belt moving mechanism 10, a mounting component 20, a clamping mechanism 30, and a welding mechanism 40.

[0029] The clamping mechanism 30 includes two clamping arms 31 and a driving member 32. The driving member 32 is mounted on the mounting member 20, and both clamping arms 31 are connected to the driving member 32. The driving member 32 is configured to drive the two clamping arms 31 to move closer or further apart to clamp the first wire harness 91. The mounting member 20 is mounted on the conveyor mechanism 10, which drives the mounting member 20 to move, so that the conveyor mechanism 10 drives the clamping mechanism 30 back and forth between the mounting base 95 and the second wire harness 93 via the mounting member 20. The welding mechanism 40 includes a welding torch 41 and a mounting base 42. The mounting base 42 is mounted on the mounting member 20, and the welding torch 41 is mounted on the mounting base 42. The welding torch 41 has a welding nozzle 411, which is aligned with the weld seam between the first wire harness 91 and the second wire harness 93. The welding torch 41 is used to heat the welding wire to generate molten droplets, such that the molten droplets connect the first wire harness 91 to the second wire harness 93.

[0030] Specifically, after the driving member 32 drives the two clamping arms 31 to move away from each other, the conveyor mechanism 10 drives the clamping mechanism 30 to move to the mounting base 95 through the mounting member 20, and the first wire harness 91 pre-installed in the mounting base 95 is placed between the two clamping arms 31. Then, the driving member 32 drives the two clamping arms 31 to move closer to each other to clamp the first wire harness 91. Then, the conveyor mechanism 10 drives the clamping mechanism 30 to move closer to the welding part of the second wire harness 93 through the mounting member 20, so that the first wire harness 91 and the second wire harness 93 are connected. Then, the welding torch 41 welds the first wire harness 91 to the second wire harness 93.

[0031] As an example, the conveyor mechanism 10 is implemented as a robotic arm.

[0032] Preferably, anti-slip textures are formed on the opposite sidewalls of the two clamping arms 31 to increase the coefficient of friction of the clamping arms 31, so that the two clamping arms 31 can stably clamp the first wire harness 91.

[0033] As an example, the drive member 32 is implemented to include a pneumatic finger.

[0034] In one embodiment, the mounting base 42 is fixedly mounted on the mounting member 20.

[0035] refer to Figure 3 and Figure 5In another embodiment, the welding mechanism 40 further includes a height adjustment member 43. The height adjustment member 43 is mounted on the mounting member 20, and the mounting base 42 is connected to the height adjustment member 43. The height adjustment member 43 drives the mounting base 42 to move vertically, causing the mounting base 42 to move the welding torch 41 up and down. It is understood that when the height adjustment member 43 drives the mounting base 42 upward, the height of the welding torch 41 is raised, thus preventing the welding torch 41 from colliding with lower components during the process of the conveyor mechanism 10 moving the clamping mechanism 30 closer to the mounting base 95. After the first wire harness 91 moves to the welding position with the second wire harness 93, the height adjustment member 43 drives the welding torch 41 downward via the mounting base 42, causing the welding torch 41 to weld the first wire harness 91 to the second wire harness 93.

[0036] As an example, the height adjustment element 43 is implemented as a cylinder.

[0037] Preferably, the mounting base 42 includes a first mounting part 421 and a second mounting part 422. The first mounting part 421 is connected to the height adjustment member 43, the welding torch 41 is mounted on the second mounting part 422, and the second mounting part 422 is rotatably mounted on the first mounting part 421 in a vertical plane to adjust the angle of the welding torch 41.

[0038] Specifically, the mounting base 42 further includes a fastener 423. One of the first mounting portion 421 and the second mounting portion 422 forms a mounting hole 4201, and the other forms an arc-shaped groove 4202, with the mounting hole 4201 and the arc-shaped groove 4202 aligned. The fastener 423 locks the first mounting portion 421 and the second mounting portion 422 by fitting into the arc-shaped groove 4202 and the mounting hole 4201. After the fastener 423 is unlocked, the second mounting portion 422 can rotate along a vertical plane, thereby adjusting the angle of the welding torch 41 so that the welding torch 41 can weld different welding parts, enabling the wire harness welding device to process different housings.

[0039] In one embodiment, the fastener 423 is implemented as a bolt, the inner wall of the mounting hole 4201 is formed with an internal thread, and the shank of the bolt passes through the arcuate groove 4202 and is threadedly connected to the mounting hole 4201. To facilitate understanding of this embodiment by those skilled in the art, the following description uses the example of the first mounting portion 421 forming the mounting hole 4201 and the second mounting portion 422 forming the arcuate groove 4202. After the shank of the bolt is loosened from the thread of the mounting hole 4201, the head of the bolt moves away from the second mounting portion 422, allowing the second mounting portion 422 to rotate relative to the first mounting portion 421. The operator adjusts the welding torch 41 to a suitable angle according to the welding position. Subsequently, after the shank of the bolt is tightened from the thread of the mounting hole 4201, the second mounting portion 422 is locked between the head of the bolt and the first mounting portion 421 to maintain the angle of the welding torch 41.

[0040] Preferably, the first assembly part 421 further forms a sliding groove 42101, and the second assembly part 422 is slidably engaged with the sliding groove 42101 formed by the first assembly part 421. The sliding groove 42101 is used to improve the stability of the second assembly part 422 when sliding.

[0041] refer to Figure 3 Furthermore, the wire harness welding device also includes a fume collection mechanism 50.

[0042] The fume collection mechanism 50 includes a fume collection pipe 51 and a negative pressure forming member 52. The fume collection pipe 51 is installed on the second assembly part 422, forming a fume collection port 5101. The fume collection port 5101 is close to the welding nozzle 411 and faces the weld seam between the first wire harness 91 and the second wire harness 93. One end of the fume collection pipe 51 away from the fume collection port 5101 is connected to a purifier. The negative pressure forming member 52 is installed on the fume collection pipe 51 and is used to draw gas from the fume collection port 5101, creating a negative pressure state at the fume collection port 5101. The fumes generated during welding are drawn from the fume collection port 5101 through the fume collection pipe 51 to the purifier under the negative pressure, so that the purifier can treat the harmful gases generated during welding, thereby preventing the harmful gases from spreading into the working environment and reducing harm to workers.

[0043] As an example, the negative pressure forming element 52 is implemented to include a negative pressure pump.

[0044] Preferably, the inner diameter of the end of the smoke collecting pipe 51 that forms the smoke collecting port 5101 gradually increases from the end away from the weld to the end closer to the weld, so that the end of the smoke collecting pipe 51 that forms the smoke collecting port 5101 is funnel-shaped, thereby increasing the air intake of the smoke collecting port 5101 and improving the smoke removal effect.

[0045] refer to Figure 5 and Figure 6 Furthermore, the wire harness welding device also includes a welding wire supply mechanism 60.

[0046] The welding wire supply mechanism 60 includes a wire supply tube 61 and a connecting member 62. The connecting member 62 is mounted on the welding torch 41, and the wire supply tube 61 is mounted on the connecting member 62, such that the wire supply tube 61 moves with the welding torch 41. The wire supply tube 61 forms an outlet 6101 and an inlet 6102, wherein the outlet 6101 is close to the welding nozzle 411, and the welding wire passes through the wire supply tube 61 from the inlet 6102 and extends out from the outlet 6101. The welding wire extending from the outlet 6101 extends to below the welding nozzle 411 so that the welding torch 41 heats the welding wire to generate molten droplets, thereby connecting the first wire bundle 91 to the second wire bundle 93.

[0047] Preferably, the welding wire supply mechanism 60 includes a wire feeder 63, which is installed on the wire supply tube 61 to feed the welding wire from the wire inlet 6102 to the wire outlet 6101.

[0048] refer to Figure 3 Furthermore, the welding wire supply mechanism 60 includes a wire storage component 64, which includes a wire feeding roller 641. A coiled welding wire is sleeved on the wire feeding roller 641, and the wire feeding roller 641 is rotatably mounted on the mounting member 20. The coiled welding wire has a free end that passes through the wire inlet 6102, through the wire supply tube 61, and extends out from the wire outlet 6101. The rotation of the wire feeding roller 641 drives the coiled welding wire to unwind, thereby supplying welding wire to the wire supply tube 61.

[0049] Preferably, the wire storage component 64 further includes a drive member 642, the wire feeding roller 641 is connected to the drive member 642, the drive member 642 drives the wire feeding roller 641 to rotate, and the drive member 642 drives the wire feeding roller 641 to rotate so as to drive the wire feeding roller 641 to unwind the welding wire.

[0050] In one example, the drive element 642 is implemented to include a motor.

[0051] refer to Figure 5 and Figure 6Preferably, the connecting member 62 includes a first connecting member 621, a second connecting member 622, and a locking member 623. The first connecting member 621 is mounted on the welding torch 41, and the wire feed tube 61 is mounted on the second connecting member 622. The first connecting member 621 forms a first connecting hole 62101, and the second connecting member 622 forms a second connecting hole 62201. The locking member 623 locks the second connecting member 622 and the first connecting member 621 by fitting into the first connecting hole 62101 and the second connecting hole 62201. After the locking member 623 is unlocked, the second connecting member 622 can rotate along a vertical plane, causing the second connecting member 622 to drive the wire feed tube 61 to rotate, thereby adjusting the angle of the wire feed tube 61 to suit different models of the housing 92.

[0052] In one embodiment, the locking fastener 623 is implemented as a bolt. The first connector 621 has two connecting ears 6211, and both connecting ears 6211 form the first connecting hole 62101. The second connector 622 is located between the two connecting ears 6211. The hole wall of the first connecting hole 62101 formed by at least one of the connecting ears 6211 is formed with an internal thread. The shank of the locking fastener 623 passes through one of the first connecting holes 62101 and the second connecting hole 62201 and is threadedly connected to the other first connecting hole 62101. After the locking fastener 623 is tightened, the second connector 622 is locked between the two connecting ears 6211 to fix the wire feed tube 61. After the locking fastener 623 is loosened, the second connector 622 can rotate relative to the first connector 621, thereby adjusting the angle of the wire feed tube 61.

[0053] refer to Figure 4 Furthermore, the wire harness welding device also includes a wire pressing mechanism 70, which includes a lower pressing member 71 and a lifting member 72. The lifting member 72 is mounted on the mounting member 20, and the lower pressing member 71 is connected to the lifting member 72. The lifting member 72 can drive the lower pressing member 71 to move vertically, and the bottom wall of the lower pressing member 71 can abut against the end of the first wire harness 91 held by the clamping arm 31 near the second wire harness 93.

[0054] Specifically, when the clamping mechanism 30 moves the first wire harness 91 to be in contact with the second wire harness 93, the lifting member 72 drives the pressing member 71 to move down, so that the pressing member 71 presses down on one end of the first wire harness 91 near the second wire harness 93 and fixes it to the housing 92, so as to prevent the first wire harness 91 from shifting and ensure the firmness of the connection between the first wire harness 91 and the second wire harness 93.

[0055] In one example, the lifting member 72 is implemented as a cylinder.

[0056] Preferably, the bottom wall of the pressing member 71 forms a limiting groove 7101. The pressing member 71 moves downward to allow the wire harness to enter the limiting groove 7101. The inner wall of the pressing member 71 forming the limiting groove 7101 fits against the outer wall of the first wire harness 91 to increase the contact area between the pressing member 71 and the first wire harness 91, thereby improving the fixing effect of the pressing member 71 on the first wire harness 91.

[0057] In one embodiment, one end of the pressing member 71 forming the limiting groove 7101 is located between the clamping arm 31 and the welding gun 41, so that the fixing position of the pressing member 71 on the first wire harness 91 is close to the welding part of the second wire harness 93, thereby further improving the fixing effect of the pressing member 71 on the first wire harness 91.

[0058] Preferably, the mounting base 95 includes a fixed portion 951, a movable portion 952, and an elastic element 953. The fixed portion 951 is fixedly mounted on the periphery of the processing table 94, and the movable portion 952 is rotatably mounted on the periphery of the processing table 94, with the first wire harness 91 clamped between the fixed portion 951 and the movable portion 952. The two ends of the elastic element 953 are respectively connected to the movable portion 952 and the processing table 94. When the end of the movable portion 952 away from the fixed portion 951 is pressed down, the fixed portion 951 and the movable portion 952 release the first wire harness 91, and the elastic element 953 undergoes elastic deformation and tends to push the movable portion 952 back to its original position.

[0059] Furthermore, the wire harness welding device also includes a holding mechanism 80, which includes a pressure-applying member 81 and a driving member 82. The driving member 82 is mounted on the mounting member 20, and the pressure-applying member 81 is connected to the driving member 82. The driving member 82 is used to drive the pressure-applying member 81 to move up and down. When the two clamping arms 31 clamp the first wire harness 91 held by the fixed part 951 and the movable part 952, the pressure-applying member 81 is located directly above the end of the movable part 952 away from the fixed part 951. Then, the driving member 82 drives the pressure-applying member 81 to move downward, causing the movable part 952 to rotate. Consequently, the fixed part 951 and the movable part 952 release the first wire harness 91, so that the clamping mechanism 30 can move the first wire harness 91 away from the mounting base 95. After the pressure member 81 moves away from the movable part 952, the movable part 952 is reset under the elastic force of the elastic member 953.

[0060] As an example, the driving member 82 is implemented as a cylinder.

[0061] Those skilled in the art should understand that the embodiments of this application described above and shown in the accompanying drawings are merely examples and do not limit the scope of this application. The advantages of this application have been fully and effectively implemented. The functional and structural principles of this application have been demonstrated and explained in the embodiments, and any variations or modifications can be made to the implementation of this application without departing from the stated principles.

Claims

1. A wire harness welding device, wherein the wire harness welding device welds a first wire harness to a second wire harness assembled on a housing using a welding wire, wherein the housing is placed on a processing table, and at least one mounting seat is installed around the periphery of the processing table, and the first wire harness is pre-positioned on the mounting seat, characterized in that, The wire harness welding device includes: Installation components; A conveyor belt mechanism, wherein the mounting component is mounted on the conveyor belt mechanism; A clamping mechanism includes two clamping arms and a driving component. The driving component is mounted on the mounting member. Both clamping arms are connected to the driving component. The driving component is configured to drive the two clamping arms to move closer or further away from each other to clamp the first wire harness. The conveying mechanism drives the clamping mechanism to move back and forth between the mounting base and the second wire harness through the mounting member. A welding mechanism includes a welding torch and an assembly base. The assembly base includes a first assembly part and a second assembly part. The first assembly part is connected to the mounting component. The welding torch is mounted on the second assembly part. The second assembly part is mounted on the first assembly part at an adjustable angle. The welding torch has a welding nozzle aligned with the weld seam between the first wire harness and the second wire harness. The welding torch is used to heat the welding wire, and the molten droplets connect the second wire harness to the first wire harness.

2. The wire harness welding device according to claim 1, characterized in that, The welding mechanism further includes a height adjustment component, which is mounted on the mounting component, and the first assembly part is connected to the height adjustment component. The height adjustment component is used to drive the assembly base to move vertically.

3. The wire harness welding device according to claim 2, characterized in that, The mounting base also includes a fastener. One of the first mounting portion and the second mounting portion forms a mounting hole, and the other forms an arc-shaped groove. The mounting hole and the arc-shaped groove are aligned. The fastener locks the first mounting portion and the second mounting portion by fitting into the arc-shaped groove and the mounting hole. After the fastener is unlocked, the second mounting portion can rotate along a vertical plane. The first mounting portion forms a sliding groove, and the second mounting portion is slidably engaged with the sliding groove formed by the first mounting portion.

4. The wire harness welding apparatus according to any one of claims 1 to 3, characterized in that, The wire harness welding device further includes a smoke collection mechanism, which includes a smoke collection pipe and a negative pressure forming member. The smoke collection pipe is installed on the second assembly part, and the smoke collection pipe forms a smoke collection port. The smoke collection port is close to the welding nozzle and faces the weld seam between the first wire harness and the second wire harness. The negative pressure forming member is installed on the smoke collection pipe and is used to draw gas from the smoke collection port.

5. The wire harness welding apparatus according to claim 4, characterized in that, The wire harness welding device further includes a welding wire supply mechanism, which includes a wire supply tube and a connecting member. The connecting member is installed on the welding torch, and the wire supply tube is installed on the connecting member. The wire supply tube forms a wire outlet and a wire inlet, wherein the wire outlet is close to the welding nozzle, the welding wire passes through the wire supply tube from the wire inlet and extends out from the wire outlet, and the welding wire extending out from the wire outlet extends to below the welding nozzle.

6. The wire harness welding apparatus according to claim 5, characterized in that, The welding wire supply mechanism includes a wire feeder and a wire storage component. The wire storage component includes a wire release roller, on which a coiled welding wire is sleeved. The wire release roller is rotatably mounted on the mounting component. The coiled welding wire has a free end, which passes through the wire supply tube from the wire inlet and extends out from the wire outlet. The wire feeder is mounted on the wire supply tube to feed the welding wire from the wire inlet to the wire outlet.

7. The wire harness welding apparatus according to claim 6, characterized in that, The connecting component includes a first connector, a second connector, and a locking fastener. The first connector is mounted on the welding torch, and the wire feed tube is mounted on the second connector. The first connector forms a first connecting hole, and the second connector forms a second connecting hole. The locking fastener locks the second connector and the first connector by fitting into the first connecting hole and the second connecting hole. After the locking fastener is unlocked, the second connector can rotate along a vertical plane, causing the second connector to drive the wire feed tube to rotate.

8. The wire harness welding apparatus according to claim 7, characterized in that, The wire harness welding device further includes a wire pressing mechanism, which includes a lower pressing member and a lifting member. The lifting member is installed on the mounting member, and the lower pressing member is connected to the lifting member. The lifting member can drive the lower pressing member to move vertically, and the bottom wall of the lower pressing member can abut against one end of the first wire harness held by the clamping arm near the second wire harness.

9. The wire harness welding apparatus according to claim 8, characterized in that, The bottom wall of the pressing member forms a limiting groove. The pressing member moves downward to allow the wire harness to enter the limiting groove. The inner wall of the pressing member forming the limiting groove is in contact with the outer wall of the first wire harness.

10. The wire harness welding apparatus according to claim 9, characterized in that, The mounting base includes a fixed part, a movable part, and an elastic member. The fixed part is fixedly mounted on the periphery of the processing table, and the movable part is rotatably mounted on the periphery of the processing table. The first wire harness is clamped between the fixed part and the movable part. The two ends of the elastic member are respectively connected to the movable part and the processing table. When the end of the movable part away from the fixed part is pressed down, the fixed part and the movable part release the first wire harness. The elastic member undergoes elastic deformation and has a tendency to drive the movable part to reset. The wire harness welding device also includes a holding mechanism. The holding mechanism includes a pressure member and a driving member. The driving member is mounted on the mounting member, and the pressure member is connected to the driving member. The driving member is used to drive the pressure member to move up and down. When the two clamping arms clamp the first wire harness held by the fixed part and the movable part, the pressure member is located directly above the end of the movable part away from the fixed part.

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