A welding device for processing automobile parts

Abstract

The application provides a welding device for automobile part processing, and belongs to the technical field of laser welding. The welding device comprises a welding head supporting module and a shaft part supporting module, and the welding head supporting module is located above the shaft part supporting module. The welding head supporting module comprises a portal frame, a motor A is arranged in the middle of the outer wall of one side of the portal frame, the output end of the motor A is fixedly connected with a rotating disc I, a tooth opening I is reserved on the outer circumferential surface of the rotating disc I, and a rotating ring is movably arranged on the portal frame. Through the opposite axial movement of the double welding heads, the movement track of the double welding heads is in a symmetrical state, and the circumferential direction of the double welding heads can be adjusted under the rotation of the rotating sleeve, so that symmetrical welding can be performed again, the welding of the 360-degree full range of the joint of the two shaft parts is realized, the welding heat and stress can be evenly distributed through the symmetrical welding operation of the joint of the two shaft parts, the welding seams are evenly distributed, and local overheating is reduced.

Description

Technical Field

[0001] This invention belongs to the field of laser welding technology, and specifically relates to a welding device for processing automotive parts. Background Technology

[0002] The automotive parts industry provides corresponding parts and components for the automotive manufacturing industry. Automotive parts generally refer to all parts and components other than the car frame. Currently, automotive parts contain a variety of shaft parts. Some shaft parts need to be butt-welded together. Since the welding surface of shaft parts is curved, the shaft parts need to be clamped and rotated axially during the welding process to achieve the welding of the curved surface.

[0003] The prior art document (application number: 202410076775.0, "An Automatic Welding Device for Automotive Parts Processing") discloses an automatic welding device for automotive parts processing, comprising a worktable, a lifting mechanism, a clamping mechanism, and a welding mechanism. The worktable has an internal cavity with multiple through slots, the two ends of which connect to the internal cavity and the external surface of the worktable. Multiple lifting mechanisms are provided and respectively disposed on the worktable. Each lifting mechanism lifts two shaft-like parts to be welded, and multiple lifting rollers clamp the shaft-like parts, thus facilitating rotation of the shaft-like parts by the clamping mechanism. Simultaneous movement of the multiple lifting rollers towards the center ensures that the two shaft-like parts to be welded remain coaxial, automatically aligning their axes without additional operations, thereby improving welding efficiency.

[0004] Existing technologies employ the self-rotation of two shaft-like parts to achieve omnidirectional welding at the joint. However, single-point continuous welding combined with the rotating state of the joint can easily lead to localized overheating and uneven stress distribution. Furthermore, after the two shaft-like parts move towards each other in the horizontal direction and come into contact, they are made to rotate synchronously using friction before surface welding. However, when welding two shaft-like parts, the gap needs to be selectively controlled within the process standard range according to the welding process. (Too small a gap can easily lead to incomplete penetration at the weld root and reduced joint strength due to insufficient penetration depth; too large a gap can easily lead to burn-through and defects such as weld beads and porosity.) Moreover, when the two shaft-like parts rotate synchronously using the friction generated by mutual compression, the contact surface of the two shaft-like parts gradually softens during the welding process, reducing or even eliminating the friction, making it difficult to maintain synchronous rotation of the two shaft-like parts, which is not conducive to comprehensive welding. Summary of the Invention

[0005] In view of the above situation and to overcome the defects of the prior art, the present invention provides a welding device for processing automotive parts, the purpose of which is to solve the problems mentioned above.

[0006] This invention provides a welding device for processing automotive parts, comprising a welding head support module and a shaft-type part support module, with the welding head support module located above the shaft-type part support module. The welding head support module includes: a gantry frame; a motor A is mounted on the center of one outer wall of the gantry frame; the output end of motor A is fixedly connected to a rotating disk; a toothed groove is pre-drilled on the outer circumferential surface of the rotating disk; a rotating ring is movably mounted on the gantry frame; a second toothed groove is pre-drilled on the outer circumferential surface of the rotating ring; the first and second teeth mesh with each other; a rotating sleeve is mounted at one end of the rotating ring; and a symmetrical welding module is mounted on the rotating sleeve. The symmetrical welding module includes: a pair of motor seats symmetrically positioned on the upper part of the outer circumferential surface of the rotating sleeve, one of which... Motor B is mounted on the outer surface of a motor base. The output end of motor B is fixedly connected to a worm gear, which consists of two worm gears with opposite directions of rotation. A pair of supports are symmetrically mounted on the outer circumference of the rotating sleeve between the motor bases. A rotating disk II rotates on one side of the outer surface of each support. A toothed groove III is reserved on the outer circumference of the rotating disk II, and a turbine is mounted in the center of one side wall of the rotating disk II. The turbine and the worm gear are connected for transmission. A pair of axially movable rings are movably mounted on the inner surface of the rotating sleeve. A toothed groove IV is reserved on the outer circumference of the axially movable rings. The toothed groove IV and the toothed groove III mesh with each other. A welding head seat is mounted on the inner surface of each pair of axially movable rings. A welding head is mounted on one side of the welding head seat, and the two welding heads are at the same horizontal height.

[0007] Preferably, the shaft component support module includes: a support platform, which includes a pair of mirror-image support plates and a connecting plate fixed between the bottoms of the pair of support plates, the upper end of the support platform being fixedly connected to the lower end of the gantry frame; a groove, which is reserved in the center of the support platform, and the welding head support module is located in the groove; a pair of shaft component fastening modules, one set of which is fixedly connected to the support platform, and the other set of which is movably installed in the support platform, with each pair of shaft component fastening modules located to the left and right of the groove; a traction module, which is installed on the movable shaft component fastening module; and a weld measurement module, which is installed on the movable shaft component fastening module and connected to the traction module, wherein when the traction shaft component fastening module moves left and right in the support platform, the traction module... Simultaneously, the traction welding measurement module measures the shaft parts fastened to the movable shaft parts fastening module. The shaft parts fastening module includes a rotating platform and a support block. The support block is fixed to the center of one outer surface of the rotating platform. An electric push rod is installed at the center of the upper end of the support block. The output end of the electric push rod passes through the support block and is mounted on a U-shaped platform. A fastening unit is installed on the U-shaped platform to fasten the shaft parts. The traction module includes a rotating column, which is rotatably mounted on the rotating platform. Both ends of the rotating column pass through the rotating platform and are located on the left and right sides of the platform, respectively. A rotating disk three is installed at one end of the rotating column. A thread five is reserved on the outer surface of the rotating disk three. A bracket is installed at the other end of the rotating column. The bracket is movable on the support platform. A thread is reserved on the outer surface of the rotating column. A traction guide platform is installed on the inner surface of the support platform. The traction guide platform and the thread are movably connected.

[0008] Preferably, the fastening unit includes a fastening frame and a pair of fastening feet. One side of the top of the fastening feet is screwed to a connecting strip A, and the other side of the connecting strip A is screwed to the fastening frame. The other side of the top of the fastening feet is screwed to one side of a right-angled strip. A linear platform is installed in the fastening frame. The linear platform is screwed to a connecting strip B along one side of the horizontal direction. The lower part of the connecting strip B is screwed to the other side of the right-angled strip. A rotating rod is embedded at the right angle of the right-angled strip. The rotating rod is screwed to the fastening frame. A motor D is installed in the U-shaped platform. The rotating part of the motor D is fixedly connected to a stud B. The stud B and the linear platform are threaded together.

[0009] Preferably, the welding joint measurement module includes an arched guide opening reserved on the outer surface of the variable platform and an arched guide platform movable in the arched guide opening. A measuring sleeve is fixedly connected to the outer surface of the arched guide platform, a distance sensor is installed on the outer surface of the measuring sleeve, and a ring is installed on the side surface of the measuring sleeve adjacent to the distance sensor.

[0010] Preferably, a set of movable platforms on a set of shaft fastening modules is fixedly connected to a support platform, and a T-shaped guide platform is fixedly connected to the outer surface of the movable platform on another set of shaft fastening modules. A linear guide opening is reserved on the inner surface of the support platform in a horizontal position. The T-shaped guide platform is movably installed in the linear guide opening. A power unit is installed on the support platform. The power unit is used to pull the T-shaped guide platform to move in the linear guide opening to adjust the position of the shaft fastening module. The power unit includes a motor C and a stud A. The stud A is screwed into the linear guide opening and threaded to the T-shaped guide platform. The rotating part of the motor C is fixedly connected to the stud A.

[0011] The beneficial effects of this invention are as follows:

[0012] 1. This invention uses two welding heads that move axially in opposite directions to ensure symmetrical movement trajectories. By rotating the rotating sleeve, the circumferential position of the two welding heads can be adjusted to perform symmetrical welding again, achieving 360-degree welding at the joint of two shaft-like parts. By performing symmetrical welding operations at the joint of two shaft-like parts, welding heat and stress can be evenly distributed, ensuring uniform weld distribution, reducing local overheating, and guaranteeing consistent weld parameters, thus reducing the defect rate. Furthermore, 360-degree welding can be achieved without rotating the shaft-like parts themselves.

[0013] 2. This invention uses a pair of shaft-type parts fastening modules, which are respectively fixedly installed and movable, to cooperate with each other. The pair of shaft-type parts in a fastened state can be controlled to move towards each other to adjust the gap at the joint of the pair of shaft-type parts. This allows the gap to be selectively controlled within the process standard range according to the welding process when welding the pair of shaft-type parts, thereby ensuring the quality of the welding. The fastening unit also ensures the firmness of the shaft-type parts fastening and prevents the shaft-type parts from loosening and shaking during welding, which would affect the welding quality.

[0014] 3. This invention uses a shaft fastening module to fasten shaft parts, eliminating the need for workers to pick up the shaft parts and pass them through the fastening unit, making the fastening of shaft parts easy and convenient.

[0015] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a top view of the present invention;

[0018] Figure 2 This is a schematic diagram of the shaft-type part support module structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the welding head support module structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the gantry structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the rotating sleeve structure of the present invention;

[0022] Figure 6 This is a schematic diagram of the axially variable ring structure of the present invention;

[0023] Figure 7 For the present invention Figure 3 Enlarged diagram at point F in the diagram;

[0024] Figure 8 For the present invention Figure 2 Enlarged diagram of point D in the diagram;

[0025] Figure 9 For the present invention Figure 1 Enlarged diagram of point E in the diagram;

[0026] Figure 10 This is a schematic diagram of the fastening unit structure of the present invention;

[0027] Figure 11 This is a schematic diagram of the connection structure between the fastening foot and the right-angled strip of the present invention;

[0028] Figure 12 This is a schematic diagram of the shaft-type part fastening module structure of the present invention;

[0029] Figure 13 This is a schematic diagram of the welding joint measurement module structure of the present invention;

[0030] Figure label:

[0031] 1. Welding head support module; 11. Gantry frame; 12. Motor A; 13. Rotating disk one; 14. Rotating ring; 15. Rotating sleeve; 16. Symmetrical welding module; 161. Motor seat; 162. Motor B; 163. Worm gear; 164. Support; 165. Rotating disk two; 166. Turbine; 167. Axial moving ring; 168. Welding head seat; 169. Welding head; 2. Shaft parts support module; 21. Support platform; 211. Support plate; 212. Connecting plate; 22. Groove; 23. Shaft parts fastening module; 2301. T-shaped guide platform; 2302. Linear guide opening; 2303. Motor C; 2304. Stud A; 231. 232. Variable platform; 233. Support block; 234. Electric push rod; 235. Fastening unit; 2341. Fastening frame; 2342. Fastening foot; 2343. Connecting strip A; 2344. Right angle strip; 2345. Stud B; 2346. Linear platform; 2347. Connecting strip B; 2348. Rotating rod; 2349. Motor D; 235. U-shaped platform; 24. Traction module; 241. Rotating column; 242. Rotating disc three; 243. Bracket; 244. Threaded joint; 245. Traction guide platform; 25. Welding joint measurement module; 251. Arched guide opening; 252. Arched guide platform; 253. Measuring sleeve; 254. Distance sensor; 255. Ring. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0033] Example 1

[0034] Reference Figure 1 , Figures 3-7 A welding device for processing automotive parts includes a welding head support module 1 and a shaft part support module 2, wherein the welding head support module 1 is located above the shaft part support module 2.

[0035] The welding head support module 1 includes: a gantry frame 11, a motor A12 installed in the center of one outer wall of the gantry frame 11, a rotating disk 13 fixedly connected to the output end of the motor A12, a toothed opening 1 reserved on the outer circumferential surface of the rotating disk 13, a rotating ring 14 movably installed on the gantry frame 11, a toothed opening 2 reserved on the outer circumferential surface of the rotating ring 14, the toothed opening 1 and the toothed opening 2 meshing together, a rotating sleeve 15 installed at one end of the rotating ring 14, and a symmetrical welding module 16 installed on the rotating sleeve 15;

[0036] The symmetrical welding module 16 includes: a pair of motor seats 161 symmetrically arranged on the upper part of the outer peripheral surface of the rotating sleeve 15, a motor B162 is installed on the outer surface of one of the motor seats 161, the output end of the motor B162 is fixedly connected to the worm 163, the worm 163 is composed of two worms with opposite directions of rotation fixedly connected, a pair of supports 164 are symmetrically arranged on the outer peripheral surface of the rotating sleeve 15 between the pair of motor seats 161, a rotating disk 165 is rotated on one side of the outer surface of each of the supports 164, a toothed groove 3 is reserved on the outer peripheral surface of the rotating disk 165, and a turbine 166 is installed in the center of one side wall of the rotating disk 165, the turbine 166 and the worm 163 are connected in a transmission.

[0037] A pair of axially movable rings 167 are movably mounted on the inner surface of the rotating sleeve 15. The outer circumferential surface of the axially movable ring 167 is reserved with four teeth. The four teeth and the three teeth mesh together. Welding head seats 168 are mounted on the inner surface of each pair of axially movable rings 167. Welding heads 169 are mounted on one side of the welding head seat 168. The two welding heads 169 are at the same horizontal height.

[0038] In this embodiment, when welding the joint of two shaft-like parts, the joint of the two shaft-like parts and the rotating sleeve 15 are placed on the same horizontal axis, and the two welding heads 169 are located outside the joint. When performing the welding operation, the motor B162 in the symmetrical welding module 16 is first controlled to work. The motor B162 pulls the two worm gears 163 to rotate. Through the transmission between the worm gears 163 and the turbine 166, the worm gears 163 pull the turbine 166 to rotate. At this time, the turbine 166 pulls the rotating disk 165 to rotate. Through the meshing connection between the rotating disk 165 and the axial changing ring 167, the rotating disk 165 pulls the axial changing ring 167 to rotate. The welding head seat 168 and the welding head 169 on the axial changing ring 167 move axially synchronously. The two welding heads 169 rotate in opposite or opposite directions. The welding heads 169 are symmetrically welded to the joint of the two shaft-like parts. The symmetrical welding is used to achieve 180-degree welding of the outer circumferential surface of the joint.

[0039] Then, the output end of motor A12 is adjusted to drive the rotating disk 13 to rotate. Through the meshing connection between the rotating disk 13 and the rotating ring 14, the rotating disk 13 drives the rotating ring 14 to rotate. The rotating sleeve 15 on the rotating ring 14 rotates synchronously. At this time, the symmetrical welding module 16 on the rotating sleeve 15 rotates synchronously, and the welding head 169 moves axially. The angle of the welding head 169 in the symmetrical welding module 16 can be adjusted so that the welding head 169 can continue to symmetrically weld the unwelded position at the joint of the two shaft parts, so as to achieve all-round welding at the joint.

[0040] By having the double welding heads 169 move axially in opposite directions to ensure their trajectories are symmetrical, and by rotating the rotating sleeve 15, the circumferential position of the double welding heads 169 can be adjusted to perform symmetrical welding again, thus achieving 360-degree all-round welding at the joint of the two shaft parts. By performing symmetrical welding operations at the joint of the two shaft parts, welding heat and stress can be evenly distributed, ensuring uniform weld distribution, reducing local overheating, and ensuring consistent weld parameters, thereby reducing the defect rate.

[0041] Example 2

[0042] Reference Figures 1-2 , Figures 8-13 The shaft-type part support module 2 includes:

[0043] The support platform 21 includes a pair of mirror-image support plates 211 and a connecting plate 212 fixed between the bottoms of the pair of support plates 211. The upper end of the support platform 21 is fixedly connected to the lower end of the gantry frame 11.

[0044] Groove 22 is reserved in the center of the support platform 21, and the welding head support module 1 is located in groove 22;

[0045] Shaft component fastening module 23, a pair of shaft component fastening modules 23 are installed, one set of shaft component fastening modules 23 is fixed to the support platform 21, and the other set of shaft component fastening modules 23 is movably installed in the support platform 21. The pair of shaft component fastening modules 23 are located on the left and right sides of the groove 22. The shaft component fastening module 23 includes a movable platform 231 and a support block 232. The support block 232 is fixed to the center of an outer surface of the movable platform 231. An electric push rod 233 is installed at the center of the upper end of the support block 232. The output end of the electric push rod 233 passes through the support block 232 and is installed on a U-shaped platform 235. A fastening unit 234 is installed on the U-shaped platform 235. The fastening unit 234 is used to fasten the shaft component.

[0046] The traction module 24 is mounted on the movable shaft fastening module 23. The traction module 24 includes a rotating column 241, which is rotatably mounted on the variable platform 231. Both ends of the rotating column 241 pass through the variable platform 231 and are located on the left and right sides of the variable platform 231, respectively. A rotating disk 242 is mounted on one end of the rotating column 241. A thread 5 is reserved on the outer surface of the rotating disk 242. A bracket 243 is mounted on the other end of the rotating column 241. The bracket 243 is movable on the support platform 21. A thread 244 is reserved on the outer surface of the rotating column 241. A traction guide platform 245 is mounted on the inner surface of the support platform 21. The traction guide platform 245 and the thread 244 are movably connected.

[0047] A set of shaft fastening modules 23 has a movable platform 231 fixedly connected to a support platform 21. Another set of shaft fastening modules 23 has a T-shaped guide platform 2301 fixedly connected to the outer surface of the movable platform 231. The inner surface of the support platform 21 has a linear guide opening 2302 reserved in the horizontal direction. The T-shaped guide platform 2301 is movably installed in the linear guide opening 2302. A power unit is installed on the support platform 21. The power unit is used to pull the T-shaped guide platform 2301 to move in the linear guide opening 2302 to adjust the position of the shaft fastening module 23. The power unit includes a motor C2303 and a stud A2304. The stud A2304 is screwed into the linear guide opening 2302 and threaded to the T-shaped guide platform 2301. The rotating part of the motor C2303 is fixedly connected to the stud A2304.

[0048] The welding joint measurement module 25 is mounted on the movable shaft part fastening module 23 and connected to the traction module 24. When the shaft part fastening module 23 moves left and right in the support platform 21, the traction module 24 simultaneously pulls the welding joint measurement module 25 to measure the shaft parts fastened on the movable shaft part fastening module 23. The welding joint measurement module 25 includes an arched guide opening 251 reserved on the outer surface of the moving platform 231 and an arched guide platform 252 movable in the arched guide opening 251. A measuring sleeve 253 is fixed to the outer surface of the arched guide platform 252, and a distance sensor 254 is mounted on the outer surface of the measuring sleeve 253. The distance sensor 254 is an Emerson sensor. The PR6423 non-contact eddy current displacement sensor has a ring 255 mounted on the side surface of the measuring sleeve 253 adjacent to the ranging sensor 254. The outer surface of the ring 255 has a toothed opening six, which meshes with the toothed opening five. The circumference of the opening of the arched guide 251 is smaller than the circumference of the arched guide platform 252 to prevent the arched guide platform 252 from falling out of the arched guide 251.

[0049] One shaft part is fastened using a fixed shaft part fastening module 23, and another shaft part is fastened using a movable shaft part fastening module 23. When fastening the shaft part, the shaft part to be fastened is placed in the support platform 21, and then the output end of the electric push rod 233 is extended to pull the fastening unit 234 downward to fasten the shaft part. Then, the output end of the electric push rod 233 is reset so that the distance the output end of the electric push rod 233 extends is the same as the distance the output end of the electric push rod 233 on the fastening module 23 extends. Therefore, when the shaft part fastening module 23 fastens the shaft part, the user does not need to pick up the shaft part and pass it through the fastening unit 234, making the fastening of the shaft part easy and convenient.

[0050] Then, when connecting the shaft parts after they are fastened, the movable shaft part fastening module 23 is moved toward the fixed shaft part fastening module 23, so that the pair of shaft part fastening modules 23 move closer to each other, and the shaft parts fastened on the pair of shaft part fastening modules 23 are connected. The operation steps of controlling the movable shaft part fastening module 23 are as follows: turn on the motor C2303, use the motor C2303 to pull the stud A2304 to rotate, the stud A2304 pulls the T-shaped guide table 2301 to move, and the T-shaped guide table 2301 pulls the movable shaft part fastening module 23 to move, so as to achieve the connection of the shaft parts.

[0051] When the T-shaped guide platform 2301 pulls the movable shaft fastening module 23 to move, the traction module 24 simultaneously pulls the welding joint measurement module 25 to measure the outer circumferential surface of the shaft fastened on the movable shaft fastening module 23. This eliminates the need for a power unit to pull the welding joint measurement module 25 to rotate, thus avoiding high costs and complex technology. It also ensures that the outer circumferential surface of the shaft is measured during the connection process, realizing the measurement of the coaxiality of the shaft, avoiding skew after welding, and ensuring that the axis coincides.

[0052] The operation steps for the traction module 24 to simultaneously pull the welding measurement module 25 to measure the shaft parts fastened to the movable shaft parts fastening module 23 are as follows: When the T-shaped guide platform 2301 pulls the movable shaft parts fastening module 23 to complete the shaft parts connection, at this moment, the movable shaft parts fastening module 23 simultaneously pulls the rotating column 241 to move. When the rotating column 241 moves, the traction guide platform 245 fixed to the inner surface of the support platform 21 moves in the threaded opening 244 reserved on the outer surface of the rotating column 241, thereby pulling the rotating column 241 to rotate. The rotation of the rotating column 241 pulls the rotating disk 242 to rotate. The rotation of the rotating disk 242 pulls and drives the ring 255 to rotate, which in turn pulls the measuring sleeve 253 to rotate. This in turn pulls the distance sensor 254 installed on the measuring sleeve 253 to rotate one revolution, measuring the outer circumference of the shaft parts. The measured data is then transmitted to the control terminal.

[0053] Example 3

[0054] Reference Figures 1-2 , Figures 8-13 The fastening unit 234 includes a fastening frame 2341 and a pair of fastening feet 2342. A connecting strip A2343 is screwed to one side of the top of each fastening foot 2342, and the other side of the connecting strip A2343 is screwed to the fastening frame 2341. A right-angle strip 2344 is screwed to the other side of the top of each fastening foot 2342. A linear platform 2346 is installed in the fastening frame 2341, and the linear platform 2346 is screwed along one side in a horizontal direction. Next, the connecting strip B2347 is screwed to the other side of the right-angle strip 2344. The right angle of the right-angle strip 2344 is embedded with a rotating rod 2348. The rotating rod 2348 is screwed to the fastening frame 2341. The motor D2349 is installed in the U-shaped platform 235. The rotating part of the motor D2349 is fixed to the stud B2345. The stud B2345 is threaded to the linear platform 2346.

[0055] The operation steps for fastening shaft parts using fastening unit 234 are as follows: Before fastening, a pair of fastening feet 2342 are in an open state. The output end of the electric push rod 233 is extended, pulling the fastening unit 234 downward so that the pair of fastening feet 2342 surround the outer circumference of the shaft part. Then, the motor D2349 is turned on, pulling the stud B2345 to rotate. The rotation of the stud B2345 pulls the linear platform 2346 upward. The linear platform 2346 uses the connecting bar B2347 to pull the right angle bar 2344 to rotate, thereby pulling the pair of fastening feet 2342 to close, thus achieving the fastening of the shaft part.

[0056] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A welding apparatus for processing automotive parts, characterized in that: It includes a welding head support module and a shaft part support module, with the welding head support module located above the shaft part support module; The welding head support module includes: a gantry frame, a motor A installed in the center of one outer wall of the gantry frame, a rotating disk I fixedly connected to the output end of motor A, a toothed opening I reserved on the outer circumference of the rotating disk I, a rotating ring movably installed on the gantry frame, a toothed opening II reserved on the outer circumference of the rotating ring, the toothed opening I and the toothed opening II meshing together, a rotating sleeve installed at one end of the rotating ring, and a symmetrical welding module installed on the rotating sleeve; The symmetrical welding module includes: a pair of motor seats symmetrically arranged on the upper part of the outer peripheral surface of the rotating sleeve; a motor B is installed on the outer surface of one of the motor seats; the output end of motor B is fixedly connected to a worm; the worm is composed of two worms with opposite directions of rotation; a pair of supports are symmetrically installed on the outer peripheral surface of the rotating sleeve between the pair of motor seats; a rotating disk II rotates on one side of the outer surface of each pair of supports; a toothed notch III is reserved on the outer peripheral surface of the rotating disk II; and a turbine is installed in the center of one side wall of the rotating disk II; the turbine and the worm are connected by a drive. A pair of axially movable rings are movably installed on the inner surface of the rotating sleeve. The outer circumferential surface of the axially movable rings is reserved with four teeth. The four teeth and three teeth mesh together. Welding head seats are installed on the inner surface of each pair of axially movable rings. Welding heads are installed on one side of the welding head seats. The two welding heads are at the same horizontal height. The shaft component support module includes: a support platform, which includes a pair of mirror-image support plates and a connecting plate fixed between the bottoms of the pair of support plates; the upper end of the support platform is fixedly connected to the lower end of the gantry. The groove is reserved in the center of the support platform, and the welding head support module is located in the groove; Shaft fastening modules, a pair of shaft fastening modules are installed, one set of shaft fastening modules is fixed in the support platform, and the other set of shaft fastening modules is movably installed in the support platform, with each pair of shaft fastening modules located on the left and right sides of the groove. The traction module is mounted on a movable shaft-type component fastening module. The welding joint measurement module is installed on the movable shaft part fastening module and connected to the traction module. When the traction module moves left and right in the support platform, the traction module simultaneously pulls the welding joint measurement module to measure the shaft parts fastened on the movable shaft part fastening module. The shaft part fastening module includes a movable platform and a support block. The support block is fixed to the center of one outer surface of the movable platform. An electric push rod is installed at the center of the upper end of the support block. The output end of the electric push rod passes through the support block and is mounted on a U-shaped platform. A fastening unit is installed on the U-shaped platform. The fastening unit is used to fasten the shaft part. The traction module includes a rotating column, which is rotatably mounted on a variable platform. Both ends of the rotating column pass through the variable platform and are located on the left and right sides of the platform, respectively. A rotating disk three is mounted on one end of the rotating column, and a tooth five is reserved on the outer surface of the rotating disk three. A bracket is mounted on the other end of the rotating column, and the bracket can be moved on a support platform. A thread is reserved on the outer surface of the rotating column. A traction guide platform is mounted on the inner surface of the support platform, and the traction guide platform and the thread can be movably connected. A set of shaft fastening modules has a movable platform fixedly connected to a support platform. Another set of shaft fastening modules has a T-shaped guide platform fixedly connected to the outer surface of the movable platform. A linear guide opening is pre-drilled on the inner surface of the support platform in a horizontal direction. The T-shaped guide platform is movably installed in the linear guide opening. A power unit is installed on the support platform. The power unit is used to move the T-shaped guide platform within the linear guide opening to adjust the orientation of the shaft fastening module. The power unit includes a motor C and a stud A. The stud A is screwed into the linear guide opening and threaded to the T-shaped guide platform. The rotating part of the motor C is fixedly connected to the stud A. When the T-shaped guide platform moves the movably installed shaft fastening module, the traction module simultaneously pulls the welding point measuring module to rotate one revolution, measuring the outer circumference of the shaft part. This achieves the measurement of the coaxiality of the shaft part, preventing misalignment after welding, ensuring axis coincidence, and eliminating the need for an additional power unit to drive the welding point measuring module to rotate.

2. The welding apparatus for processing automotive parts according to claim 1, characterized in that: The fastening unit includes a fastening frame and a pair of fastening feet. One side of the top of the fastening feet is screwed to a connecting strip A, and the other side of the connecting strip A is screwed to the fastening frame. The other side of the top of the fastening feet is screwed to one side of a right-angled strip. A linear platform is installed in the fastening frame. The linear platform is screwed to a connecting strip B along one side of the horizontal direction. The lower part of the connecting strip B is screwed to the other side of the right-angled strip. A rotating rod is embedded at the right angle of the right-angled strip. The rotating rod is screwed to the fastening frame. A motor D is installed in the U-shaped platform. The rotating part of the motor D is fixed to a stud B. The stud B and the linear platform are threaded together.

3. The welding apparatus for processing automotive parts according to claim 1, characterized in that: The welding measurement module includes an arched guide opening reserved on the outer surface of the variable table and an arched guide platform movable in the arched guide opening. A measuring sleeve is fixed to the outer surface of the arched guide platform, a distance sensor is installed on the outer surface of the measuring sleeve, and a ring is installed on the side surface of the measuring sleeve adjacent to the distance sensor.

Images