Clamping device for welding of automobile parts

Abstract

The invention provides a clamping device for automobile part welding, and relates to the technical field of automobile part machining, the clamping device comprises a bottom plate, brake universal trundles are fixedly connected to the four corners of the bottom of the bottom plate, four supporting rods are fixedly connected to the top of the bottom plate, and a square hollow pipe is fixedly connected to the top ends of the four supporting rods. According to the clamping device, the extending-in block is inserted into the inner cavity of the clamping block, the clamping block is clamped in the inner cavity of the clamping groove under the elastic force action of the spring, so that the clamp can be replaced, and meanwhile, the clamping precision and efficiency are guaranteed; the forward and reverse motor can be started, and the clamp replacement assembly can move up and down conveniently; by rotating the first rotating rod, the convenient clamp replacing assembly can rotate in the horizontal direction; by rotating the second rotating rod, the convenient clamp replacing assembly can rotate in the vertical direction; and by rotating a third rotating rod, the convenient clamp replacing assembly can rotate by an angle, and multi-angle welding can be completed through single-time clamping in the design.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts processing, in particular to a clamping device for welding automobile parts. Background Art

[0002] Cars are the most important means of transportation in people's lives. People's lives are closely related to the development of the automobile industry. In recent years, the automobile manufacturing industry has developed rapidly in China, the national living standards have been improving, the demand for cars has increased sharply, and the automobile industry has flourished. In the modification of cars, welding clamping devices for automobile parts processing are indispensable.

[0003] However, in the prior art, when using a clamping device for welding automobile parts to fix and clamp automobile parts to be welded, it is found that when it is necessary to change the welding position of the clamped automobile parts, the clamped automobile parts need to be removed first, and after adjusting the angle, they need to be re-fixed, which increases the auxiliary time for welding automobile parts. Summary of the invention

[0004] The purpose of the present invention is to solve the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a clamping device for welding automobile parts, comprising: a base plate, the four corners of the bottom of the base plate are fixedly connected to brake universal casters, the top of the base plate is fixedly connected to four support rods, the top ends of the four support rods are fixedly connected to square hollow tubes, the top ends of the inner cavities of the square hollow tubes are fixedly embedded with a limiting tube, the inner cavity at the bottom end of the square hollow tube is embedded with a threaded rod 1 through a bearing, the bottom end of the threaded rod 1 is connected to a forward and reverse motor, and the output end of the forward and reverse motor is fixedly connected to the threaded rod 1 At the center of the bottom end, the surface of the forward and reverse motors is fixedly embedded in the inner sides of the four support rods, the surface threaded sleeve of the threaded rod one is provided with a square lifting rod, the bottom fixed sleeve of the square lifting rod is provided with a square limiting sleeve, the surface of the threaded rod one is movably embedded in the inner cavity of the square empty tube, the surface of the square lifting rod is movably fitted and embedded in the inner cavity of the limiting tube, the surface of the square limiting sleeve is movably fitted and embedded in the inner cavity of the square empty tube, the top end of the square lifting rod is provided with an angle adjustment assembly, and one end of the angle adjustment assembly is provided with a convenient clamp replacement assembly.

[0006] Furthermore, the angle adjustment assembly includes a horizontal angle adjustment box, and a worm gear 1 is installed on both sides of one end of the horizontal angle adjustment box through bearings, one end of the worm gear 1 is fixedly connected to a rotating rod 1, the surface of the worm gear 1 is meshingly connected to a worm wheel 1, and a rotating shaft 1 is fixedly embedded in the inner cavity of the worm wheel 1, and the surfaces of both ends of the rotating shaft 1 are embedded in the two ends of the horizontal angle adjustment box through bearings, the top of the rotating shaft 1 passes through the surface of the horizontal angle adjustment box and is fixedly connected to a vertical angle adjustment box, and a worm gear 2 is installed on the bottom ends of both sides of the vertical angle adjustment box through bearings, one end of the worm gear 2 is fixedly connected to a rotating rod 2, and the surface of the worm gear 2 is meshingly connected to a worm wheel 2.

[0007] Furthermore, a rotating shaft 2 is fixedly embedded in the inner cavity of the worm gear 2, and both sides of the surface of the rotating shaft 2 are embedded in the two ends of the vertical angle adjustment box through bearings, and both ends of the rotating shaft 2 pass through the side walls of the horizontal angle adjustment box and are fixedly connected to a support plate 1, and the other ends of the two support plates 1 are fixedly connected to a welding angle adjustment box, and a worm gear 3 is embedded in the bottom ends of both sides of the welding angle adjustment box through bearings, one end of the worm gear 3 is fixedly connected to a rotating rod 3, and the surface of the worm gear 3 is meshingly connected to a worm gear 3, and a rotating shaft 3 is fixedly embedded in the inner cavity of the worm gear 3, and the surfaces of both ends of the rotating shaft 3 are embedded in the two ends of the welding angle adjustment box through bearings.

[0008] Furthermore, the convenient clamp replacement assembly includes a replacement box and two extension blocks, one end of the replacement box is provided with an insertion slot, the bottom of the inner cavity of the insertion slot is provided with a T-slot 1, the bottom end of the inner cavity of the T-slot 1 is penetrated by a T-slot 2, a pulling rod is movably embedded in the inner cavity of the T-slot 2, a limiting plate is fixedly sleeved on the middle and upper part of the surface of the pulling rod, the surface of the limiting plate is movably fitted and embedded in the inner cavity of the T-slot 2, a spring is sleeved on the surface of the pulling rod, the top end of the spring is fixedly connected to the bottom of the limiting plate, the bottom end of the spring is fixedly connected to the bottom end of the inner cavity of the T-slot 2, the inner cavity of the bottom end of the pulling rod is fixedly embedded with a grip rod, and the top end of the pulling rod is fixedly connected with a clamping block.

[0009] Furthermore, a card slot is provided at the bottom of the two insertion blocks, one side of one end of the two insertion blocks is fixedly connected to a support plate 2, and the other side of one end of the two insertion blocks is fixedly connected to a clamping plate, one end of the two insertion blocks is provided with a T-slot 3, the inner cavities of the two support plates 2 are threadedly embedded with a threaded rod 2, the inner cavities of one end of the two threaded rods 2 are fixedly embedded with a rotating rod 4, and the surfaces of the other ends of the two threaded rods 2 are installed with an I-shaped clamping plate through a bearing sleeve, and the surfaces of the two I-shaped clamping plate ends correspond to the inner cavities of the two T-slots 3 that are movably fitted and embedded, and the two ends of the inner sides of one clamping plate and one of the I-shaped clamping plates are fixedly connected with clamping teeth, the surfaces of the two insertion blocks can be movably fitted and embedded in the inner cavity of the insertion groove, and the surface of the card block can be movably fitted and embedded in the inner cavity of the two card slots.

[0010] Furthermore, both ends of the inner sides of one of the clamping plates and one of the I-shaped clamping plates are fixedly connected with clamping teeth, the surfaces of the two insertion blocks can be movably fitted and embedded in the inner cavity of the insertion groove, and the surface of the clamping block can be movably fitted and embedded in the inner cavity of the two clamping slots.

[0011] Furthermore, the bottom of the horizontal angle adjustment box is fixedly connected to the top of the square lifting rod.

[0012] Furthermore, the other end of the replacement box is fixedly connected to one end of the rotating shaft three.

[0013] Compared with the prior art, the advantages and positive effects of the present invention are:

[0014] 1. In the present invention, the insertion block is inserted into the inner cavity of the clamping block, and the clamping block is clamped in the inner cavity of the clamping slot under the elastic force of the spring. This design can replace the clamp according to the welding shape requirements of automobile parts, while ensuring the clamping accuracy and efficiency.

[0015] 2. The present invention can start the forward and reverse motors, and the convenient clamp replacement assembly can move up and down; by rotating the rotating rod one, the convenient clamp replacement assembly can be rotated in the horizontal direction; by rotating the rotating rod two, the convenient clamp replacement assembly can be rotated in the vertical direction; by rotating the rotating rod three, the convenient clamp replacement assembly can be rotated at an angle. This design allows multi-angle welding to be completed in a single clamping, saving auxiliary time. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of the overall structure of a clamping device for welding automobile parts provided by the present invention;

[0017] Figure 2 A front cross-sectional view of a clamping device for welding automobile parts provided by the present invention;

[0018] Figure 3A schematic diagram of a clamping device for welding automobile parts provided by the present invention;

[0019] Figure 4 A schematic diagram of a clamping device for welding automobile parts provided by the present invention at position B;

[0020] Figure 5 A schematic diagram of a clamping device for welding automobile parts provided by the present invention at position C;

[0021] Figure 6 A schematic diagram of a clamping device for welding automobile parts provided by the present invention at position D;

[0022] Figure 7 A schematic diagram of a convenient clamp replacement assembly of a clamping device for welding automobile parts provided by the present invention;

[0023] Figure 8 A partial schematic diagram of a convenient clamp replacement assembly of a clamping device for welding automobile parts provided by the present invention;

[0024] Fig. 9 A schematic diagram of the clamping teeth of a clamping device for welding automobile parts provided by the present invention;

[0025] Fig.10 A side sectional view of a convenient clamp replacement assembly of a clamping device for welding automobile parts provided by the present invention.

[0026] Legend:

[0027] 1. Bottom plate; 101. Brake universal caster; 102. Support rod; 103. Square hollow tube; 104. Limiting tube; 105. Threaded rod 1; 106. Forward and reverse motor; 107. Square lifting rod; 108. Square limiting sleeve; 2. Angle adjustment assembly; 201. Horizontal angle adjustment box; 202. Worm 1; 203. Rotating rod 1; 204. Worm wheel 1; 205. Rotating shaft 1; 206. Vertical angle adjustment box; 207. Worm 2; 208. Rotating rod 2; 209. Worm wheel 2; 210. Rotating shaft 2; 211. Support plate 1; 212. Welding angle Degree adjustment box; 213, worm three; 214, rotating rod three; 215, worm wheel three; 216, rotating shaft three; 3, convenient fixture replacement assembly; 301, replacement box; 302, insertion slot; 303, T-slot one; 304, T-slot two; 305, pulling rod; 306, limiting plate; 307, spring; 308, gripping rod; 309, clamping block; 310, extending block; 311, clamping slot; 312, supporting plate two; 313, clamping plate; 314, T-slot three; 315, threaded rod two; 316, rotating rod four; 317, I-shaped clamping plate; 318, clamping teeth. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-10 The present invention provides a technical solution: a clamping device for welding automobile parts, comprising: a bottom plate 1, the four corners of the bottom of the bottom plate 1 are fixedly connected with brake universal casters 101, the top of the bottom plate 1 is fixedly connected with four support rods 102, the tops of the four support rods 102 are fixedly connected with square hollow tubes 103, the top of the inner cavity of the square hollow tube 103 is fixedly embedded with a limiting tube 104, the inner cavity at the bottom end of the square hollow tube 103 is embedded with a threaded rod 105 through a bearing, the bottom end of the threaded rod 105 is connected with a forward and reverse motor 106, and the output end of the forward and reverse motor 106 is fixedly connected to the center of the bottom end of the threaded rod 105 The surfaces of the forward and reverse motors 106 are fixedly embedded in the inner sides of the four support rods 102, the surface of the threaded rod 105 is threadedly sleeved with a square lifting rod 107, the bottom end of the square lifting rod 107 is fixedly sleeved with a square limiting sleeve 108, the surface of the threaded rod 105 is movably embedded in the inner cavity of the square empty tube 103, the surface of the square lifting rod 107 is movably fitted and embedded in the inner cavity of the limiting tube 104, the surface of the square limiting sleeve 108 is movably fitted and embedded in the inner cavity of the square empty tube 103, and the top of the square lifting rod 107 is provided with an angle adjustment component 2, and one end of the angle adjustment component 2 is provided with a convenient clamp replacement component 3.

[0030] Specifically: insert the insertion block 310 into the inner cavity of the clamping block 309, and the clamping block 309 is clamped in the inner cavity of the clamping slot 311 under the elastic force of the spring 307. This design can replace the clamp according to the welding shape requirements of the automotive parts, while ensuring the clamping accuracy and efficiency; the forward and reverse motor 106 can be started, and the convenient clamp replacement component 3 can move up and down; by rotating the rotating rod 1 203, the convenient clamp replacement component 3 can be rotated in the horizontal direction; by rotating the rotating rod 208, the convenient clamp replacement component 3 can be rotated in the vertical direction movement; by rotating the rotating rod three 214, the convenient clamp replacement component 3 can be rotated, so that a single clamping design can complete multi-angle welding, saving auxiliary time; the movement of the limiting tube 104 and the square limiting sleeve 108 is limited to prevent the square lifting rod 107 from escaping from the inner cavity of the square empty tube 103; the square lifting rod 107 is tightly attached to the inner cavity of the limiting tube 104, and the square limiting sleeve 108 is tightly attached to the inner cavity of the square empty tube 103, limiting the square lifting rod 107 to prevent the square lifting rod 107 from rotating with the threaded rod 105.

[0031] In one embodiment, the angle adjustment assembly 2 includes a horizontal angle adjustment box 201, and a worm 202 is installed on both sides of one end of the horizontal angle adjustment box 201 through bearings, one end of the worm 202 is fixedly connected to a rotating rod 203, the surface of the worm 202 is meshingly connected to a worm wheel 204, and the inner cavity of the worm wheel 204 is fixedly embedded with a rotating shaft 205. The surfaces of both ends of the rotating shaft 205 are embedded in the two ends of the horizontal angle adjustment box 201 through bearings, the top of the rotating shaft 205 passes through the surface of the horizontal angle adjustment box 201 and is fixedly connected to a vertical angle adjustment box 206, and the bottom ends of both sides of the vertical angle adjustment box 206 are embedded with worms 207 through bearings, one end of the worm 207 is fixedly connected to a rotating rod 208, and the surface of the worm 207 is meshingly connected to a worm wheel 209.

[0032] Specifically, Figure 5 As shown: by rotating the rotating rod 203, the worm 202 follows the rotating rod 203 to rotate, and the worm wheel 204 follows the worm 202 to rotate, so that the convenient clamp replacement component 3 can be rotated in the horizontal direction, and the worm wheel 204 self-locks the worm 202; by rotating the rotating rod 208, the worm 207 follows the rotating rod 208 to rotate, and the worm wheel 209 follows the worm 207 to rotate, so that the convenient clamp replacement component 3 can be rotated in the vertical direction, and the worm wheel 209 self-locks the worm 207.

[0033] In one embodiment, a rotating shaft 210 is fixedly embedded in the inner cavity of the worm gear 209, and both sides of the surface of the rotating shaft 210 are embedded in the two ends of the vertical angle adjustment box 206 through bearings. Both ends of the rotating shaft 210 pass through the side walls of the horizontal angle adjustment box 201 and are fixedly connected to a support plate 1 211. The other ends of the two support plates 211 are fixedly connected to a welding angle adjustment box 212. A worm 3 213 is embedded in the bottom ends of both sides of the welding angle adjustment box 212 through bearings, one end of the worm 3 213 is fixedly connected to a rotating rod 3 214, and the surface of the worm 3 213 is meshingly connected to a worm gear 3 215, and a rotating shaft 3 216 is fixedly embedded in the inner cavity of the worm gear 3 215. The surfaces of both ends of the rotating shaft 3 216 are embedded in the two ends of the welding angle adjustment box 212 through bearings.

[0034] Specifically, Figure 6 As shown: by rotating the rotating rod three 214, the worm three 213 rotates following the rotating rod three 214, and the worm wheel three 215 rotates following the worm wheel three 213, the convenient clamp replacement component 3 can be rotated, and at the same time, the worm wheel three 215 self-locks the worm wheel three 213.

[0035] In one embodiment, the convenient clamp replacement assembly 3 includes a replacement box 301 and two extension blocks 310, an insertion slot 302 is provided at one end of the replacement box 301, a T-slot 1 303 is provided at the bottom of the inner cavity of the insertion slot 302, a T-slot 2 304 is provided through the bottom of the inner cavity of the T-slot 1 303, a pulling rod 305 is movably embedded in the inner cavity of the T-slot 2 304, a limiting plate 306 is fixedly sleeved on the middle and upper part of the surface of the pulling rod 305, the surface of the limiting plate 306 is movably fitted and embedded in the inner cavity of the T-slot 2 304, a spring 307 is sleeved on the surface of the pulling rod 305, the top end of the spring 307 is fixedly connected to the bottom of the limiting plate 306, the bottom end of the spring 307 is fixedly connected to the bottom end of the inner cavity of the T-slot 2 304, a gripping rod 308 is fixedly embedded in the inner cavity of the bottom end of the pulling rod 305, and a clamping block 309 is fixedly connected to the top of the pulling rod 305.

[0036] Specifically, Figure 6 As shown: the limiting plate 306 is movably embedded in the inner cavity of the second T-slot 304 , and the limiting plate 306 can limit the movement of the pulling rod 305 to ensure that a part of the clamping block 309 is always movably embedded in the inner cavity of the first T-slot 303 .

[0037] In one embodiment, the bottom of the two insertion blocks 310 is provided with a slot 311, one side of one end of the two insertion blocks 310 is fixedly connected to a support plate 2 312, the other side of one end of the two insertion blocks 310 is fixedly connected to a clamping plate 313, one end of the two insertion blocks 310 is provided with a T-slot 314, the inner cavity of the two support plates 2 312 is threadedly embedded with a threaded rod 2 315, the inner cavity of one end of the two threaded rods 2 315 is fixedly embedded with a rotating rod 4 316, and the two The surfaces of the other ends of the two threaded rods 315 are installed with I-shaped clamps 317 through bearing sleeves, and the surfaces of one ends of the two I-shaped clamps 317 are movably fitted and embedded in the inner cavities of the two T-slots 314, and the two ends of the inner sides of one clamp 313 and one I-shaped clamp 317 are fixedly connected with clamping teeth 318, the surfaces of the two extension blocks 310 can be movably fitted and embedded in the inner cavity of the insertion groove 302, and the surface of the clamping block 309 can be movably fitted and embedded in the inner cavities of the two clamping grooves 311.

[0038] Specifically, Figure 8-9 As shown: a fixture with clamping teeth 318 can be selected for round automobile parts, and a fixture without clamping teeth 318 can be selected for flat automobile parts. A suitable fixture can be selected according to the shape of the automobile parts to be welded.

[0039] In one embodiment, both ends of the inner side of one of the clamping plates 313 and one of the I-shaped clamping plates 317 are fixedly connected with clamping teeth 318, the surfaces of the two insertion blocks 310 can be movably fitted and embedded in the inner cavity of the insertion groove 302, and the surface of the clamping block 309 can be movably fitted and embedded in the inner cavity of the two clamping grooves 311.

[0040] Specifically, Fig.10 As shown: under the action of the elastic force of the spring 307 , the clamping block 309 is embedded in the inner cavity of the clamping slot 311 to fix the insertion block 310 .

[0041] In one embodiment, the bottom of the horizontal angle adjustment box 201 is fixedly connected to the top of the square lifting rod 107 .

[0042] Specifically, Figure 5 As shown: the bottom end of the horizontal angle adjustment box 201 is fixedly connected to the top end of the square lifting rod 107 to fix the angle adjustment component 2 so that the angle adjustment component 2 can move up and down with the square lifting rod 107.

[0043] In one embodiment, the other end of the replacement box 301 is fixedly connected to one end of the rotating shaft three 216 .

[0044] Specifically, Figure 6 As shown: one end of the replacement box 301 is fixedly connected to one end of the rotating shaft 3 216 to fix the convenient clamp replacement component 3, so that the convenient clamp replacement component 3 can be rotated horizontally, vertically and at an angle.

[0045] Working principle: After the clamping device for welding auto parts is pushed to the required welding position by holding the square hollow tube 103 or the square lifting rod 107 and cooperating with the brake universal caster 101, the four brake universal casters 101 are fixed and connected to an external power supply device to provide power for the device, and the external controller is associated with the forward and reverse motor 106 for control.

[0046] Select a suitable fixture according to the shape of the automotive parts to be welded. For round automotive parts, a fixture with clamping teeth 318 can be selected, and for flat automotive parts, a fixture without clamping teeth 318 can be selected. Pull the grip 308 downward, and the block 309 moves downward accordingly. The spring 307 is deformed under the force, and the insertion block 310 can be pulled out. After releasing the grip 308, the block 309 returns to its original position under the action of the elastic force of the spring 307, completing the disassembly of the fixture, and then the required fixture can be replaced.

[0047] The insertion block 310 is inserted into the inner cavity of the clamping block 309. The clamping block 309 moves downward due to the compression of the insertion block 310. The limiting plate 306 moves downward following the clamping block 309. The spring 307 is deformed due to the compression of the limiting plate 306. When the insertion block 310 moves to a suitable position, the clamping block 309 moves upward under the elastic force of the spring 307 and engages in the inner cavity of the clamping slot 311, thereby fixing the insertion block 310 and completing the installation of the fixture.

[0048] This design allows the fixture to be replaced according to the welding shape requirements of automotive parts, while ensuring clamping accuracy and efficiency.

[0049] The forward and reverse motor 106 can be started by an external controller, and the output end of the forward and reverse motor 106 drives the threaded rod 105 to rotate. Since the threaded rod 105 is threadedly connected to the square lifting rod 107, the rotating forward and reverse motor 106 can drive the square lifting rod 107 to move up and down, and the convenient clamp replacement component 3 can move up and down; by rotating the rotating rod 1 203, the worm 1 202 follows the rotating rod 1 203 to rotate, and the worm wheel 1 204 follows the worm 1 202 to rotate, and the convenient clamp replacement component 3 can be rotated in the horizontal direction; by rotating the rotating rod 208, the worm 207 follows the rotating rod 208 to rotate, and the worm wheel 209 follows the worm 207 to rotate, and the convenient clamp replacement component 3 can be rotated in the vertical direction; by rotating the rotating rod 3 214, the worm 3 213 follows the rotating rod 3 214 to rotate, and the worm wheel 3 215 follows the worm 3 213 to rotate, and the convenient clamp replacement component 3 can rotate an angle;

[0050] This design can adjust the position of the clamped auto parts according to the welding requirements of the auto parts, and multi-angle welding can be completed in a single clamping, saving auxiliary time.

[0051] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A clamping device for welding automobile parts, characterized in that: include: A base plate (1), the four corners of the bottom of the base plate (1) are fixedly connected with brake universal casters (101), the top of the base plate (1) is fixedly connected with four support rods (102), the tops of the four support rods (102) are fixedly connected with square hollow tubes (103), the top of the inner cavity of the square hollow tube (103) is fixedly embedded with a limit tube (104), the inner cavity of the bottom end of the square hollow tube (103) is embedded with a threaded rod (105) through a bearing, the bottom end of the threaded rod (105) is connected with a forward and reverse motor (106), the output end of the forward and reverse motor (106) is fixedly connected to the center of the bottom end of the threaded rod (105), and the surface of the forward and reverse motor (106) is fixedly connected to the center of the bottom end of the threaded rod (105). Embedded in the inner side of the four support rods (102), the surface threaded sleeve of the threaded rod (105) is provided with a square lifting rod (107), the bottom fixed sleeve of the square lifting rod (107) is provided with a square limiting sleeve (108), the surface of the threaded rod (105) is movably embedded in the inner cavity of the square hollow tube (103), the surface of the square lifting rod (107) is movably fitted and embedded in the inner cavity of the limiting tube (104), the surface of the square limiting sleeve (108) is movably fitted and embedded in the inner cavity of the square hollow tube (103), the top end of the square lifting rod (107) is provided with an angle adjustment component (2), and one end of the angle adjustment component (2) is provided with a convenient clamp replacement component (3).

2. The clamping device for welding automobile parts according to claim 1, characterized in that: The angle adjustment assembly (2) comprises a horizontal angle adjustment box (201), a worm (202) being embedded and installed on both sides of one end of the horizontal angle adjustment box (201) through bearings, one end of the worm (202) being fixedly connected to a rotating rod (203), a worm wheel (204) being meshingly connected to the surface of the worm (202), a rotating shaft (205) being fixedly embedded in the inner cavity of the worm wheel (204), and the surfaces of both ends of the rotating shaft (205) being connected to the rotating rod (203). The top end of the rotating shaft 1 (205) passes through the surface of the horizontal angle adjustment box (201) and is fixedly connected to the vertical angle adjustment box (206). The bottom ends of both sides of the vertical angle adjustment box (206) are embedded with worm gear 2 (207) through bearings. One end of the worm gear 2 (207) is fixedly connected to the rotating rod 2 (208). The surface of the worm gear 2 (207) is meshedly connected to the worm wheel 2 (209).

3. The clamping device for welding automobile parts according to claim 2, characterized in that: A rotating shaft 2 (210) is fixedly embedded in the inner cavity of the worm gear 2 (209), and both sides of the surface of the rotating shaft 2 (210) are embedded in the two ends of the vertical angle adjustment box (206) through bearings. Both ends of the rotating shaft 2 (210) penetrate the side wall of the horizontal angle adjustment box (201) and are fixedly connected to a supporting plate 1 (211). The other ends of the two supporting plates 1 (211) are fixedly connected to a welding angle adjustment box (212). A worm gear 3 (213) is embedded in the bottom ends of both sides of the welding angle adjustment box (212) through bearings. One end of the worm gear 3 (213) is fixedly connected to a rotating rod 3 (214). The surface of the worm gear 3 (213) is meshingly connected to a worm gear 3 (215). A rotating shaft 3 (216) is fixedly embedded in the inner cavity of the worm gear 3 (215), and the surfaces of both ends of the rotating shaft 3 (216) are embedded in the two ends of the welding angle adjustment box (212) through bearings.

4. The clamping device for welding automobile parts according to claim 1, characterized in that: The convenient fixture replacement assembly (3) comprises a replacement box (301) and two insertion blocks (310), one end of the replacement box (301) is provided with an insertion slot (302), the bottom of the inner cavity of the insertion slot (302) is provided with a T-slot 1 (303), the bottom end of the inner cavity of the T-slot 1 (303) is penetrated by a T-slot 2 (304), a pulling rod (305) is movably embedded in the inner cavity of the T-slot 2 (304), and a limiting plate (305) is fixedly sleeved on the middle and upper part of the surface of the pulling rod (305). 6), the surface of the limit plate (306) is movably fitted and embedded in the inner cavity of the second T-slot (304), the surface of the pulling rod (305) is sleeved with a spring (307), the top end of the spring (307) is fixedly connected to the bottom of the limit plate (306), the bottom end of the spring (307) is fixedly connected to the bottom end of the inner cavity of the second T-slot (304), the inner cavity at the bottom end of the pulling rod (305) is fixedly embedded with a grip rod (308), and the top end of the pulling rod (305) is fixedly connected with a clamping block (309).

5. The clamping device for welding automobile parts according to claim 4, characterized in that: A slot (311) is provided at the bottom of the two insertion blocks (310), one side of one end of the two insertion blocks (310) is fixedly connected to a support plate 2 (312), the other side of one end of the two insertion blocks (310) is fixedly connected to a clamping plate (313), one end of the two insertion blocks (310) is provided with a T-slot 3 (314), the inner cavity of the two support plates 2 (312) is threadedly embedded with a threaded rod 2 (315), the inner cavity of one end of the two threaded rods 2 (315) is fixedly embedded with a rotating rod 4 (316), the surface of the other end of the two threaded rods 2 (315) is installed with an I-shaped clamping plate (317) through a bearing sleeve, and the surface of one end of the two I-shaped clamping plates (317) is correspondingly and movably fitted in the inner cavity of the two T-slots 3 (314).

6. The clamping device for welding automobile parts according to claim 5, characterized in that: The two ends of the inner sides of one of the clamping plates (313) and one of the I-shaped clamping plates (317) are fixedly connected with clamping teeth (318), the surfaces of the two insertion blocks (310) can be movably fitted and embedded in the inner cavity of the insertion groove (302), and the surface of the clamping block (309) can be movably fitted and embedded in the inner cavities of the two clamping grooves (311).

7. The clamping device for welding automobile parts according to claim 2, characterized in that: The bottom of the horizontal angle adjustment box (201) is fixedly connected to the top of the square lifting rod (107).

8. The clamping device for welding automobile parts according to claim 4, characterized in that: The other end of the replacement box (301) is fixedly connected to one end of the rotating shaft three (216).

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