Part positioning mechanism for automobile part machining and welding

Abstract

The invention discloses a part positioning mechanism for automobile part machining and welding, and relates to the technical field of automobile part positioning mechanisms, the part positioning mechanism comprises a bottom plate, a motor A is fixedly mounted on the side face of the bottom plate, and a bidirectional lead screw A is mounted at the output end of the motor A. According to the device, a motor B drives a rotating plate A and a rotating plate B to rotate, after the rotating plate A and the rotating plate B rotate to be in a horizontal state with a bottom plate, automobile parts can be placed on the top faces of the rotating plate A and the rotating plate B, at the moment, an electric push rod is opened, and the electric push rod can drive a connecting plate A to slide on the surface of the rotating plate A; and meanwhile, a clamping plate A is driven by a rotating rod A to slide on the surface of a rotating plate A, a rack A is driven to move, the rack A drives a rack B to move through a gear A when moving, so that a connecting plate B, a rotating rod B and a clamping plate B are driven to move, the parts are clamped through the clamping plate A and the clamping plate B, and installation of the automobile parts can be completed at the moment.

Description

Technical Field

[0001] The invention relates to the technical field of automobile component positioning mechanisms, in particular to a component positioning mechanism for automobile component processing and welding. Background Art

[0002] In the process of automobile parts processing and welding, the design and application of positioning mechanism is very important. It can ensure the accurate alignment of various parts during welding, thereby improving welding quality, efficiency and production consistency.

[0003] For example, the "A component positioning mechanism for automobile component processing and welding" with publication number: CN114029684A includes: a bearing base plate, on the top of which are fixedly installed a spacing controllable mechanism, a surface protection mechanism and a convenient angle adjustment mechanism, a track slideway is provided on the top of the bearing base plate, and the spacing controllable mechanism includes two movable slides, and one side of the outer wall of the two movable slides is provided with a mounting hole A, so that the welds on the two components are gradually contacted, and the rotation rate of the threaded rod is controlled according to the material and hardness of the component to prevent the pressure at the weld from exceeding the maximum range that the component material can withstand, and it also effectively solves the problem that the existing equipment structure is relatively rigid and cannot be flexibly adjusted, so that the equipment can completely overlap the welds of the two, shorten the spacing at the welds, and allow the welding material to be completely attached to the surface of the component, thereby improving the structure of the processed component during later use. It is not easy to loosen and has a longer service life.

[0004] However, in the prior art, although this type of automobile parts positioning mechanism can make the welding material completely adhere to the surface of the parts, improve the structure of the processed parts during later use, and prolong the service life, it is lacking in the disassembly and assembly of automobile parts. Since this type of positioning mechanism does not have a structure for flipping the loaded pallet, this will require the staff to adjust the clamping mechanism while holding the automobile parts when installing the automobile parts. If the automobile parts are large in size and heavy in weight, the staff will lose their hands and drop the automobile parts when holding them, thereby causing the automobile parts to be damaged. Summary of the invention

[0005] The object of the present invention is to provide a parts positioning mechanism for automobile parts processing and welding, so as to solve the problem that the automobile parts welding positioning mechanism proposed in the above background technology does not have a structure for auxiliary installation of automobile parts, resulting in the parts falling and being damaged when installing automobile parts.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a parts positioning mechanism for automobile parts processing and welding, comprising a bottom plate, a motor A is fixedly installed on the side of the bottom plate, a bidirectional screw rod A is installed on the output end of the motor A, a connecting block A and a connecting block B are slidably connected inside the bottom plate, a bracket A and a bracket B are fixedly installed on the top surfaces of the connecting block A and the connecting block B, the motor B is fixedly installed on the side of the bracket A and the bracket B, a rotating plate A and a rotating plate B are installed on the output ends of the two groups of motors B, and the surface of the rotating plate A is fixedly installed There is an electric push rod, and a rotating plate A is installed at the output end of the motor B. The surface of the connecting plate A is rotatably connected to a rotating rod A, one end of the rotating rod A is fixedly installed with a splint A, the bottom surface of the connecting plate A is fixedly installed with a rack A, the surface of the rotating plate A is rotatably connected to a gear A, the inner side surface of the bracket A is rotatably connected to a roller, a limiting groove A is provided on the side of the bottom plate, the inside of the rotating plate A is rollingly connected to a rotating rod B, one end of the rotating rod B is rotatably connected to the connecting plate B, and the other end is rotatably connected to the splint B, and the top surface of the connecting plate B is fixedly installed with a rack B.

[0007] Preferably, a universal self-locking wheel is fixedly installed on the bottom surface of the base plate, a push handle is fixedly installed on the side of the base plate, the rack A and the rack B are meshed with the gear A, the rotating rod A is rollingly connected to the rotating plate A, the rack A is slidingly connected to the connecting plate B, and the rack B is slidingly connected to the connecting plate A.

[0008] Preferably, the connecting plate A and the connecting plate B are both slidably connected to the rotating plate A, the splint A and the splint B are both slidably connected to the rotating plate A, the rotating plate A is rotationally connected to the bracket A, and the rotating plate B is rotationally connected to the bracket B.

[0009] Preferably, the bidirectional screw rod A is rotationally connected to the base plate, the connecting block A and the connecting block B are both connected to the bidirectional screw rod A through threads, and the bracket A and the bracket B are both slidingly connected to the base plate.

[0010] Preferably, a motor C is fixedly installed on the side of the base plate, a bidirectional screw rod B is installed on the output end of the motor C, a connecting block C and a connecting block D are slidably connected inside the base plate, the base plate is rotatably connected inside the bidirectional screw rod C, a gear B and a gear C are fixedly installed in the middle of the bidirectional screw rod B and the bidirectional screw rod C respectively, a connecting rod A and a connecting rod B are rotatably connected inside the connecting block C and the connecting block D respectively, the base plate is slidably connected inside the limit plate, and a top plate is fixedly installed on the top surface of the limit plate.

[0011] Preferably, the surfaces of the gear B and the gear C are sleeved with a tooth chain, the gear B and the gear C are meshed with the tooth chain, and the bidirectional screw rod B is rotationally connected to the base plate.

[0012] Preferably, the connecting block C is connected to the bidirectional screw rod B via a threaded connection, the connecting block D is connected to the bidirectional screw rod C via a threaded connection, and the connecting rod A and the connecting rod B are both rotatably connected to the top plate.

[0013] Preferably, the internal rotation of the rotating plate B is connected with a bidirectional screw rod D, one end of the bidirectional screw rod D is fixedly installed with a turning handle, the surface of the rotating plate B is provided with a limiting groove B, the internal sliding connection of the limiting block A and the limiting block B of the limiting groove B, the surfaces of the limiting block A and the limiting block B are respectively fixedly installed with a positioning rod A and a positioning rod B, and the surface of the rotating plate B is provided with a scale groove.

[0014] Preferably, the surfaces of the rotating plate A and the rotating plate B are both provided with scale grooves, and the surfaces of the rotating plate A and the rotating plate B are both provided with positioning rods A, positioning rods B and bidirectional screw rods D.

[0015] Preferably, the limit block A and the limit block B are both connected to the bidirectional screw rod D through threads, and the positioning rod A and the positioning rod B are both connected to the rotating plate B through sliding connection.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the motor B drives the rotating plate A and the rotating plate B to rotate. After the rotating plate A and the rotating plate B rotate to a horizontal state with the bottom plate, the automobile parts can be placed on the top surface of the rotating plate A and the rotating plate B. At this time, the electric push rod is opened, and the electric push rod drives the connecting plate A to slide on the surface of the rotating plate A, and also drives the clamping plate A to slide on the surface of the rotating plate A through the rotating rod A, and also drives the rack A to move. When the rack A moves, it drives the rack B to move through the gear A, thereby driving the connecting plate B, the rotating rod B and the clamping plate B to move, so that the parts are clamped by the clamping plates A and the clamping plates B, and the installation of the automobile parts can be completed at this time.

[0017] 2. In the present invention, the bidirectional screw rod B is driven to rotate by the motor C. When the bidirectional screw rod B rotates, it drives the gear B to rotate. When the gear B rotates, it drives the gear C to rotate through the tooth chain, thereby driving the bidirectional screw rod C to rotate. When the bidirectional screw rods B and C rotate, they drive the connecting block C and the connecting block D to move inside the bottom plate. When the connecting block C and the connecting block D move, they drive the connecting rod A and the connecting rod B to rotate, thereby driving the top plate to move upward. When the top plate moves upward, it drives the limit plate to slide inside the bottom plate. After the top plate moves to the bottom of the component, the component can be supported, thereby supporting the newly welded automotive components and preventing them from breaking when they are removed from the fixed structure.

[0018] 3. In the present invention, by rotating the handle, the handle will drive the bidirectional screw D to rotate, and the bidirectional screw D will drive the slider A and the slider B to move toward each other inside the limit groove B, thereby driving the positioning rod A and the positioning rod B to move toward each other, and the positions of the positioning rod A and the positioning rod B are observed through the scale groove, thereby completing the positioning of the parts, avoiding the situation where the two groups of parts are misaligned after the automobile parts are fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a parts positioning mechanism for automobile parts processing and welding according to the present invention; Figure 2 A longitudinal sectional view of a bottom plate in a parts positioning mechanism for automobile parts processing and welding according to the present invention; Figure 3 It is a schematic diagram of the exploded structure of the transfer plate A, the connecting plate A, the connecting plate B and the motor A in the parts positioning mechanism for automobile parts processing and welding of the present invention; Figure 4 The present invention is a component positioning mechanism for automobile component processing and welding Figure 3 The enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the exploded structure of the motor C, the bidirectional screw rod B and the top plate in a parts positioning mechanism for automobile parts processing and welding of the present invention; Figure 6 The present invention is a component positioning mechanism for automobile component processing and welding Figure 5 The enlarged view of point B in the middle; Figure 7 It is a schematic diagram of the exploded structure of a bidirectional screw rod D, a turning handle, a positioning rod A and a positioning rod B in a parts positioning mechanism for automobile parts processing and welding of the present invention; Figure 8 The present invention is a component positioning mechanism for automobile component processing and welding Figure 7 Enlarged view of point C in the middle.

[0020] In the figure: 100, bottom plate; 101, universal self-locking wheel; 102, push handle; 103, motor A; 104, two-way screw rod A; 105, connecting block A; 106, connecting block B; 107, bracket A; 108, bracket B; 109, rotating plate A; 110, motor B; 111, rotating plate B; 112, electric push rod; 113, roller; 114, limiting groove A; 115, gear A; 116, connecting plate A; 117, rotating rod A; 118, clamping plate A; 119, rack A; 120, limiting block A; 121, connecting plate B; 122, Turning rod B; 123, splint B; 124, rack B; 200, motor C; 201, bidirectional screw rod B; 202, connecting block C; 203, connecting rod A; 204, top plate; 205, gear B; 206, bidirectional screw rod C; 207, gear C; 208, toothed chain; 209, connecting block D; 210, connecting rod B; 211, limit plate; 300, turning handle; 301, bidirectional screw rod D; 302, limit slot B; 303, scale slot; 304, limit block B; 305, positioning rod A; 306, limit block C; 307, positioning rod B. DETAILED DESCRIPTION

[0021] 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 implementation regulations described 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.

[0022] Example 1: Reference Figure 1-4As shown: A parts positioning mechanism for automobile parts processing and welding, including a base plate 100, a motor A103 is fixedly installed on the side of the base plate 100, a bidirectional screw rod A104 is installed on the output end of the motor A103, a connecting block A105 and a connecting block B106 are slidably connected inside the base plate 100, a bracket A107 and a bracket B108 are fixedly installed on the top surfaces of the connecting block A105 and the connecting block B106, respectively, a motor B110 is fixedly installed on the side of the bracket A107 and the bracket B108, and a rotating plate A104 is installed on the output end of the motor B110. 09, an electric push rod 112 is fixedly installed on the surface of the rotating plate A109, and a connecting plate A116 is installed on the output end of the electric push rod 112. A rotating rod A117 is rotatably connected to the surface of the connecting plate A116, and a clamping plate A118 is fixedly installed on one end of the rotating rod A117. A rack A119 is fixedly installed on the bottom surface of the connecting plate A116. A gear A115 is rotatably connected to the surface of the rotating plate A109. A roller 113 is rotatably connected to the inner side of the bracket A107. A limiting groove A114 is provided on the side of the bottom plate 100. The inside of the rotating plate A109 is rotatably connected to the rotating rod A117. Rod B122, one end of the rotating rod B122 is rotatably connected to the connecting plate B121, and the other end is rotatably connected to the clamping plate B123, the top surface of the connecting plate B121 is fixedly installed with a rack B124, the bottom surface of the bottom plate 100 is fixedly installed with a universal self-locking wheel 101, and the side of the bottom plate 100 is fixedly installed with a push handle 102, the rack A119 and the rack B124 are meshed with the gear A115, the rotating rod A117 is rollingly connected to the rotating plate A109, the rack A119 is slidingly connected to the connecting plate B121, and the rack B124 is connected to the connecting plate A11 6, the connecting plate A116 and the connecting plate B121 are both slidingly connected to the rotating plate A109, the splint A118 and the splint B123 are both slidingly connected to the rotating plate A109, the rotating plate A109 and the bracket A107 are rotationally connected, the rotating plate B111 and the bracket B108 are rotationally connected, the two-way screw rod A104 is rotationally connected to the base plate 100, the connecting block A105 and the connecting block B106 are both threadedly connected to the two-way screw rod A104, and the bracket A107 and the bracket B108 are both slidingly connected to the base plate 100.

[0023] In this embodiment, the motor B110 drives the rotating plate A109 and the rotating plate B111 to rotate. After the rotating plate A109 and the rotating plate B111 rotate to a horizontal state with the bottom plate 100, the automobile parts can be placed on the top surface of the rotating plate A109 and the rotating plate B111. At this time, the electric push rod 112 is opened, and the electric push rod 112 drives the connecting plate A116 to slide on the surface of the rotating plate A109, and also drives the clamping plate A118 to slide on the surface of the rotating plate A109 through the rotating rod A117. The rack A119 moves, and when the rack A119 moves, it drives the rack B124 to move through the gear A115, thereby driving the connecting plate B121, the rotating rod B122 and the clamping plate B123 to move, so that the parts are clamped by the clamping plates A118 and B123. After the parts are fixed, the rotating plates A109 and B111 can be driven to rotate by the motor B110. After the rotating plates A109 and B111 rotate to a vertical state with the bottom plate 100, the installation of the automobile parts can be completed; The motor A103 drives the bidirectional screw rod A104 to rotate. When the bidirectional screw rod A104 rotates, it drives the connecting block and the connecting block B106 to slide in the base plate 100, thereby driving the bracket A107 and the bracket B108 to slide on the base plate 100. At this time, the bracket A107 drives the roller 113 to roll in the limiting groove A114, thereby driving the rotating plate A109 and the rotating plate B111 to move through the bracket A107 and the bracket B108, thereby completing the splicing of automobile parts.

[0024] Embodiment 2: Figure 5-6 As shown, a motor C200 is fixedly installed on the side of the base plate 100, a bidirectional screw rod B201 is installed on the output end of the motor C200, a connecting block C202 and a connecting block D209 are slidably connected inside the base plate 100, a bidirectional screw rod C206 is rotatably connected inside the base plate 100, a gear B205 and a gear C207 are fixedly installed in the middle of the bidirectional screw rod B201 and the bidirectional screw rod C206, a connecting rod A203 and a connecting rod B210 are rotatably connected inside the connecting block C202 and the connecting block D209, and the inside of the base plate 100 The gear B205 and the gear C207 are slidably connected with a limit plate 211, and a top plate 204 is fixedly installed on the top surface of the limit plate 211. A tooth chain 208 is provided on the surface of the gear B205 and the gear C207, and the gear B205 and the gear C207 are meshed with the tooth chain 208. The bidirectional screw rod B201 is rotationally connected to the base plate 100, the connecting block C202 is threadedly connected to the bidirectional screw rod B201, the connecting block D209 is threadedly connected to the bidirectional screw rod C206, and the connecting rod A203 and the connecting rod B210 are rotationally connected to the top plate 204.

[0025] In this embodiment, the motor C200 drives the bidirectional screw rod B201 to rotate. When the bidirectional screw rod B201 rotates, it drives the gear B205 to rotate. When the gear B205 rotates, it drives the gear C207 to rotate through the tooth chain 208, thereby driving the bidirectional screw rod C206 to rotate. When the bidirectional screw rods B201 and C206 rotate, they drive the connecting block C202 and the connecting block D209 to move inside the bottom plate 100. When the connecting block C202 and the connecting block D209 move, they drive the connecting rod A203 and the connecting rod B210 to rotate, thereby driving the top plate 204 to move upward. When the top plate 204 moves upward, it drives the limit plate 211 to slide inside the bottom plate 100. After the top plate 204 moves to the bottom of the component, the component can be supported, thereby supporting the newly welded automotive components and preventing them from breaking when they are removed from the fixed structure.

[0026] Embodiment 3: According to Figure 7-8 As shown, the rotating plate B111 is internally connected to a bidirectional screw rod D301, one end of which is fixedly mounted with a rotating handle 300, a limiting groove B302 is provided on the surface of the rotating plate B111, and a limiting block A120 and a limiting block B304 are internally slidably connected to the limiting groove B302, and a positioning rod A305 and a positioning rod B307 are fixedly mounted on the surfaces of the limiting block A120 and the limiting block B304, respectively. A scale groove 303 is provided on the surface, and a scale groove 303 is provided on the surface of the rotating plate A109 and the rotating plate B111. A positioning rod A305, a positioning rod B307 and a bidirectional screw rod D301 are provided on the surface of the rotating plate A109 and the rotating plate B111. The limit block A120 and the limit block B304 are connected to the bidirectional screw rod D301 through threads, and the positioning rod A305 and the positioning rod B307 are slidably connected to the rotating plate B111.

[0027] In this embodiment, by rotating the handle 300, the handle 300 will drive the bidirectional screw D301 to rotate, and the bidirectional screw D301 will drive the slider A and the slider B to move towards each other inside the limit groove B302, thereby driving the positioning rod A305 and the positioning rod B307 to move towards each other, and the positions of the positioning rod A305 and the positioning rod B307 are observed through the scale groove 303, thereby completing the positioning of the parts, avoiding the misalignment of the two groups of parts after the automobile parts are fixed.

[0028] The use method and working principle of this device: When it is necessary to weld automobile parts, first turn on the motor B110, and the motor B110 will drive the rotating plate A109 and the rotating plate B111 to rotate. After the rotating plate A109 and the rotating plate B111 rotate to a horizontal state with the bottom plate 100, the automobile parts can be placed on the top surface of the rotating plate A109 and the rotating plate B111. At this time, turn on the electric push rod 112, and the electric push rod 112 will drive the connecting plate A116 to slide on the surface of the rotating plate A109, and at the same time drive the clamping plate A118 to rotate through the rotating rod A117. The surface of plate A109 slides, and the rack A119 is also driven to move. When the rack A119 moves, it drives the rack B124 to move through the gear A115, thereby driving the connecting plate B121, the rotating rod B122 and the clamping plate B123 to move, so that the parts are clamped by the clamping plates A118 and B123. After the parts are fixed, the rotating plates A109 and B111 can be driven to rotate by the motor B110. After the rotating plates A109 and B111 are rotated to be perpendicular to the bottom plate 100, the installation of the automobile parts can be completed; When the installed auto parts need to be spliced, the motor A103 only needs to be turned on, and the motor A103 will drive the bidirectional screw A104 to rotate. When the bidirectional screw A104 rotates, it will drive the connecting block and the connecting block B106 to slide in the bottom plate 100, thereby driving the bracket A107 and the bracket B108 to slide on the bottom plate 100. At this time, the bracket A107 will drive the roller 113 to roll in the limiting groove A114, thereby driving the rotating plate A109 and the rotating plate B111 to move through the bracket A107 and the bracket B108, thereby completing the splicing of the auto parts; When the welded automobile parts need to be disassembled from the rotating plate A109 and the rotating plate B111, it is only necessary to turn on the motor C200, and the motor C200 will drive the bidirectional screw rod B201 to rotate, and the bidirectional screw rod B201 will drive the gear B205 to rotate when rotating, and the gear B205 will drive the gear C207 to rotate through the tooth chain 208, thereby driving the bidirectional screw rod C206 to rotate, and the bidirectional screw rods B201 and C206 will drive the connecting block C202 and the connecting block when rotating. D209 moves inside the bottom plate 100, and the connecting block C202 and the connecting block D209 drive the connecting rod A203 and the connecting rod B210 to rotate when moving, thereby driving the top plate 204 to move upward, and the top plate 204 drives the limit plate 211 to slide inside the bottom plate 100 when moving upward. After the top plate 204 moves to the bottom of the component, the component can be supported, thereby supporting the newly welded automobile component and preventing it from breaking when being removed from the fixed structure; When installing automobile parts on the rotating plate A109 and the rotating plate B111, first rotate the turning handle 300. When the turning handle 300 is rotated, the bidirectional screw rod D301 is driven to rotate. When the bidirectional screw rod D301 is rotated, the slider A and the slider B are driven to move toward each other inside the limiting groove B302, thereby driving the positioning rod A305 and the positioning rod B307 to move toward each other. The positions of the positioning rod A305 and the positioning rod B307 are observed through the scale groove 303, thereby completing the positioning of the parts, avoiding the misalignment of the two groups of parts after the automobile parts are fixed.

[0029] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A component positioning mechanism for automobile component processing and welding, comprising a base plate (100), characterized in that: A motor A (103) is fixedly mounted on the side of the base plate (100), and a bidirectional screw rod A (104) is mounted on the output end of the motor A (103). A connecting block A (105) and a connecting block B (106) are slidably connected inside the base plate (100), and a bracket A (107) and a bracket B (108) are fixedly mounted on the top surfaces of the connecting block A (105) and the connecting block B (106), respectively. A motor B (110) is fixedly mounted on the sides of the bracket A (107) and the bracket B (108), and a rotating plate A (109) is fixedly mounted on the output end of the motor B (110). An electric push rod (112) is fixedly mounted on the surface of the rotating plate A (109), and a connecting plate A (116) is mounted on the output end of the electric push rod (112). The surface of the connecting plate A (116) is rotatably connected to a rotating rod A (117), one end of the rotating rod A (117) is fixedly mounted with a clamping plate A (118), the bottom surface of the connecting plate A (116) is fixedly mounted with a rack A (119), the surface of the rotating plate A (109) is rotatably connected to a gear A (115), the inner side surface of the bracket A (107) is rotatably connected to a roller (113), a side surface of the bottom plate (100) is provided with a limiting groove A (114), the interior of the rotating plate A (109) is rotatably connected to a rotating rod B (122), one end of the rotating rod B (122) is rotatably connected to a connecting plate B (121), and the other end is rotatably connected to a clamping plate B (123), and the top surface of the connecting plate B (121) is fixedly mounted with a rack B (124).

2. A parts positioning mechanism for automobile parts processing and welding according to claim 1, characterized in that: A universal self-locking wheel (101) is fixedly mounted on the bottom surface of the base plate (100), a push handle (102) is fixedly mounted on the side surface of the base plate (100), the rack A (119) and the rack B (124) are meshed with the gear A (115), the rotating rod A (117) is rollingly connected to the rotating plate A (109), the rack A (119) is slidingly connected to the connecting plate B (121), and the rack B (124) is slidingly connected to the connecting plate A (116).

3. The component positioning mechanism for automobile component processing and welding according to claim 1, characterized in that: The connecting plate A (116) and the connecting plate B (121) are both slidably connected to the rotating plate A (109), the clamping plate A (118) and the clamping plate B (123) are both slidably connected to the rotating plate A (109), the rotating plate A (109) is rotationally connected to the bracket A (107), and the rotating plate B (111) is rotationally connected to the bracket B (108).

4. The component positioning mechanism for automobile component processing and welding according to claim 1, characterized in that: The bidirectional screw rod A (104) is rotationally connected to the bottom plate (100), the connecting block A (105) and the connecting block B (106) are both connected to the bidirectional screw rod A (104) via threads, and the bracket A (107) and the bracket B (108) are both slidably connected to the bottom plate (100).

5. The component positioning mechanism for automobile component processing and welding according to claim 2, characterized in that: A motor C (200) is fixedly mounted on the side of the base plate (100), a bidirectional screw rod B (201) is mounted on the output end of the motor C (200), a connecting block C (202) and a connecting block D (209) are slidably connected inside the base plate (100), a bidirectional screw rod C (206) is rotatably connected inside the base plate (100), a gear B (205) and a gear C (207) are fixedly mounted in the middle of the bidirectional screw rod B (201) and the bidirectional screw rod C (206), a connecting rod A (203) and a connecting rod B (210) are rotatably connected inside the connecting block C (202) and the connecting block D (209), a limiting plate (211) is slidably connected inside the base plate (100), and a top plate (204) is fixedly mounted on the top surface of the limiting plate (211).

6. A parts positioning mechanism for automobile parts processing and welding according to claim 5, characterized in that: A toothed chain (208) is sleeved on the surfaces of the gear B (205) and the gear C (207), and the gear B (205) and the gear C (207) are meshed with the toothed chain (208), and the bidirectional screw rod B (201) is rotationally connected to the bottom plate (100).

7. The component positioning mechanism for automobile component processing and welding according to claim 5, characterized in that: The connection block C (202) is connected to the bidirectional screw rod B (201) via a threaded connection, the connection block D (209) is connected to the bidirectional screw rod C (206) via a threaded connection, and the connection rod A (203) and the connection rod B (210) are both rotationally connected to the top plate (204).

8. The component positioning mechanism for automobile component processing and welding according to claim 2, characterized in that: The rotating plate B (111) is internally rotatably connected to a bidirectional screw rod D (301), one end of which is fixedly mounted with a rotating handle (300), a surface of the rotating plate B (111) is provided with a limit groove B (302), the interior of the limit groove B (302) is slidably connected to a limit block A (120) and a limit block B (304), the surfaces of the limit block A (120) and the limit block B (304) are respectively fixedly mounted with a positioning rod A (305) and a positioning rod B (307), and the surface of the rotating plate B (111) is provided with a scale groove (303).

9. A parts positioning mechanism for automobile parts processing and welding according to claim 8, characterized in that: The surfaces of the rotating plate A (109) and the rotating plate B (111) are both provided with scale grooves (303), and the surfaces of the rotating plate A (109) and the rotating plate B (111) are both provided with positioning rods A (305), positioning rods B (307) and bidirectional screw rods D (301).

10. The component positioning mechanism for automobile component processing and welding according to claim 8, characterized in that: The limit block A (120) and the limit block B (304) are both connected to the bidirectional screw rod D (301) via threads, and the positioning rod A (305) and the positioning rod B (307) are both slidably connected to the rotating plate B (111).

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