Positioning tool for automobile parts

Abstract

The invention relates to the technical field of positioning tools, and discloses an automobile part positioning tool which comprises a stand, supporting legs are fixedly connected to the bottom of the stand, a turnover mechanism is arranged at the top of the stand, a positioning mechanism is arranged at the top of the turnover mechanism, and a fixing mechanism is arranged at the bottom of the stand. The turnover mechanism comprises a turnover assembly and a sliding assembly, the turnover assembly is arranged at the top of the stand, and the sliding assembly is arranged at the bottom of the turnover assembly. According to the positioning tool for the automobile parts, through the arranged overturning mechanism, a first rotating cylinder is rotationally connected to the outer ring of a first fixing shaft and drives a workbench to rotate through a connecting block, so that a worker can adjust the angle of a workpiece when cutting or polishing the workpiece fixed to the top of the workbench; and the situation that force is inconvenient to apply when a worker treats the corner of the lower side of the workpiece is avoided, and the convenience of treating the workpiece by the worker is improved.

Description

Technical Field

[0001] This invention relates to the field of positioning tooling technology, specifically to a positioning tooling for automotive parts. Background Technology

[0002] An automobile is a vehicle that is powered by its own energy source and can move freely without relying on tracks or electrical infrastructure. In a broader sense, any vehicle with four wheels is generally referred to as an automobile. Automobiles have provided immense convenience for human travel. As people's demands for automobiles have increased, the automobile itself has undergone significant development. Furthermore, the manufacturing process of automobile parts requires the use of positioning equipment for precise positioning.

[0003] According to a patent application published on the patent website, titled "A Positioning Fixture for Automotive Parts (Publication No.: CN 213381196U; Application No.: 202022174317.0)," the positioning device in the above application uses a four-corner clamping plate 7 that is synchronously controlled by the linkage of the turntable 2 and the connecting rod 5, allowing the four corner clamping plates 7 to move inward or outward simultaneously. However, the above device can only clamp workpieces that are equidistant on all four sides. When clamping irregularly shaped workpieces, at most two of the clamping plates 7 will not be able to contact the outer side of the workpiece, resulting in a limited range of applications. In addition, the positioning fixture in the above application is the same as existing common fixtures, which cannot adjust the angle of the fixed workpiece. It is inconvenient for workers to apply force when processing the lower corner of the workpiece, making it inconvenient for workers to use. Summary of the Invention

[0004] The purpose of this invention is to provide a positioning fixture for automotive parts to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a positioning fixture for automotive parts, including a frame, a support leg fixedly connected to the bottom of the frame, a flipping mechanism provided at the top of the frame, a positioning mechanism provided at the top of the flipping mechanism, and a fixing mechanism provided at the bottom of the frame.

[0006] The flipping mechanism includes a flipping component and a sliding component. The flipping component is located on the top of the platform, and the sliding component is located at the bottom of the flipping component.

[0007] The positioning mechanism includes an adjustment component, a pressing component, and a limiting component. The adjustment component is located on top of the flipping component, the sliding component is located inside the top of the adjustment component, and the limiting component is located inside the pressing component.

[0008] The fixing mechanism includes a driving component, a transmission component, and a positioning component. The driving component is located at the bottom of the frame, the transmission component is located at the bottom of the frame above the driving component, and the positioning component is located at the bottom of the frame corresponding to the sliding component.

[0009] According to the above technical solution, the flipping component includes a first fixed frame, which is fixedly connected to the top of the platform. A first fixed shaft is fixedly connected to the inner side of the first fixed frame. A first rotating cylinder is rotatably connected to the outer ring of the first fixed shaft. A connecting block is fixedly connected to the top of the first rotating cylinder. A worktable is fixedly connected to the top of the connecting block.

[0010] According to the above technical solution, the sliding component includes a sliding block, which is slidably connected to the bottom of the workbench. A groove is provided in the bottom of the workbench corresponding to the position of the sliding block. A second fixed frame is fixedly connected to the bottom of the sliding block. A second fixed shaft is fixedly connected to the inner side of the second fixed frame. A second rotating cylinder is rotatably connected to the outer ring of the second fixed shaft. A sliding plate is fixedly connected to the bottom of the second rotating cylinder. The sliding plate is slidably connected to the top of the frame. A limit piece is fixedly connected to the bottom of the sliding plate.

[0011] According to the above technical solution, the adjustment component includes a fixed rod, which is fixedly connected to the top of the workbench. A support beam is fixedly connected to the top of the fixed rod, and a telescopic slide rod is slidably connected inside the support beam. A limit plate is fixedly connected to the outer side of the telescopic slide rod, and a second rotating cylinder is fixedly connected to the inner side of the telescopic slide rod.

[0012] According to the above technical solution, the pressing component includes a fixed screw cylinder, which is fixedly connected to a fixed block. The inner ring of the fixed screw cylinder is threaded with a threaded rod, a torsion disc is fixedly connected to the top of the threaded rod, a connecting cylinder is rotatably connected to the bottom of the threaded rod, and a pressure block is fixedly connected to the bottom of the connecting cylinder.

[0013] According to the above technical solution, the limiting component includes a limiting slide rod, which is fixedly connected to the top of the pressure block at the left and right sides of the threaded rod. The limiting slide rod is slidably connected to the fixed block, and a limiting block is fixedly connected to the top of the limiting slide rod.

[0014] According to the above technical solution, the driving component includes a first supporting rotary cylinder, which is fixedly connected to the front side of the bottom of the frame. A first connecting arm is fixedly connected to the bottom of the first supporting rotary cylinder. A worm gear shaft is rotatably connected to the inner ring of the first connecting arm. A turntable is fixedly connected to the front side of the worm gear shaft. A rocker arm is fixedly connected to the front side of the turntable. A limit slider is fixedly connected to the front side of the frame corresponding to the position of the turntable. A groove is opened on the rear side of the turntable corresponding to the position of the limit slider. A second supporting rotary cylinder is rotatably connected to the rear end of the worm gear shaft. A second connecting arm is fixedly connected to the top of the second supporting rotary cylinder. The second connecting arm is fixedly connected to the bottom of the frame.

[0015] According to the above technical solution, the transmission component includes a worm gear, which meshes with the top of the worm shaft. A double-axis screw is fixedly connected to the inner ring of the worm gear. A third support cylinder is sleeved on the outer ring of the double-axis screw at the left and right sides of the worm gear. A third connecting arm is fixedly connected to the top of the third support cylinder. The third connecting arm is fixedly connected to the bottom of the frame.

[0016] According to the above technical solution, the positioning component includes a rectangular sleeve, which is fixedly connected to the bottom of the frame at the position corresponding to the slide plate. The rectangular sleeve is sleeved on the outer ring of the slide plate. A fixed cylinder is fixedly connected to the outside of the rectangular sleeve. A rubber block is slidably connected inside the fixed cylinder. A connecting slide rod is fixedly connected to the outside of the rubber block. The connecting slide rod is slidably connected to the inside of the outside of the fixed cylinder. A connecting plate is fixedly connected to the outside of the connecting slide rod. A threaded cylinder is fixedly connected to the inside of the connecting plate. The threaded cylinder is threadedly connected to the outer ring of the dual-axis screw.

[0017] Compared with the prior art, the present invention provides a positioning tooling for automotive parts, which has the following advantages: 1. The positioning fixture for automotive parts uses a flipping mechanism. The first rotating cylinder is rotatably connected to the outer ring of the first fixed shaft and drives the worktable to rotate through the connecting block. This allows the operator to adjust the angle of the workpiece when cutting or grinding the workpiece fixed on the top of the worktable. This avoids the inconvenience of applying force when processing the lower corner of the workpiece and increases the convenience of processing the workpiece.

[0018] 2. This automotive component positioning fixture, through its positioning mechanism, allows the fixed block to move back and forth via a telescopic slide rod slidably connected to the support beam. This enables the device to fix workpieces of different lengths. The front and rear fixed blocks can move independently. Compared to existing linkage clamping structures, this device can fix certain irregularly shaped workpieces, increasing its applicability. The limiting slide rod basket, stacked within the fixed block, limits the pressure block, preventing misalignment during lifting and lowering, thus increasing structural stability. The limiting plate limits the telescopic slide rod, ensuring it remains connected to the fixed block during inward movement, further enhancing structural stability.

[0019] 3. This automotive parts positioning fixture, through the set fixing mechanism, allows the operator to simply crank the lever to move the rubber blocks on both sides synchronously outward or inward within the fixed cylinder. This facilitates the operator in positioning or releasing the sliding plate. The operation is simple and easy for the operator to use. When the rubber blocks move inward and come into contact with the outer side of the sliding plate, they generate a large frictional force, preventing the sliding plate from moving up and down within the rectangular sleeve. The operation is simple and easy for the operator to use. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a front view of the structure of the present invention; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the flipping mechanism. Figure 4 This is a schematic diagram of the positioning mechanism. Figure 5 This is a cross-sectional view of the sliding component structure; Figure 6 This is a schematic diagram of the bottom structure of the platform; Figure 7 This is a schematic diagram of the structure of the driver component; Figure 8 yes Figure 7 Enlarged schematic diagram of the structure at point A in the middle; Figure 9 This is a cross-sectional view of the positioning component.

[0021] In the diagram: 1. Tilting mechanism; 11. Tilting assembly; 1101. First fixed frame; 1102. First fixed shaft; 1103. First rotating drum; 1104. Connecting block; 1105. Worktable; 12. Sliding assembly; 1201. Sliding block; 1202. Slide groove; 1203. Second fixed frame; 1204. Second fixed shaft; 1205. Second rotating drum; 1206. Slide plate; 1207. Limiting plate; 2. Positioning mechanism; 21. Adjusting assembly; 2101. Fixed rod; 2102. Support beam; 2103. Telescopic slide rod; 2104. Limiting plate; 2105. Fixed block; 22. Pressing assembly; 2201. Fixed screw barrel; 2202. Threaded rod; 2203. Torque disc; 2204. Connecting rotating drum; 220 5. Pressure block; 23. Limiting assembly; 2301. Limiting slide bar; 2302. Limiting block; 3. Fixing mechanism; 31. Driving assembly; 3101. First supporting rotary cylinder; 3102. First connecting arm; 3103. Worm gear shaft; 3104. Turntable; 3105. Rocker arm; 3106. Limiting slider; 3107. Second supporting rotary cylinder; 3108. Second connecting arm; 32. Transmission assembly; 3201. Worm gear; 3202. Dual-axis screw; 3203. Third supporting rotary cylinder; 3204. Third connecting arm; 33. Positioning assembly; 3301. Rectangular sleeve; 3302. Fixing cylinder; 3303. Rubber block; 3304. Connecting slide bar; 3305. Connecting plate; 3306. Threaded cylinder; 4. Stand; 5. Support leg. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] This invention provides a technical solution: Example 1

[0024] Combination Figures 1 to 3 , Figure 5 and Figure 6 A positioning fixture for automotive parts includes a platform 4, with legs 5 fixedly connected to the bottom of the platform 4, a flipping mechanism 1 on the top of the platform 4, a positioning mechanism 2 on the top of the flipping mechanism 1, and a fixing mechanism 3 on the bottom of the platform 4.

[0025] The flipping mechanism 1 includes a flipping component 11 and a sliding component 12. The flipping component 11 is located on the top of the platform 4, and the sliding component 12 is located at the bottom of the flipping component 11.

[0026] The flipping assembly 11 includes a first fixed frame 1101, which is fixedly connected to the top of the platform 4. A first fixed shaft 1102 is fixedly connected to the inner side of the first fixed frame 1101. A first rotating cylinder 1103 is rotatably connected to the outer ring of the first fixed shaft 1102. A connecting block 1104 is fixedly connected to the top of the first rotating cylinder 1103. A worktable 1105 is fixedly connected to the top of the connecting block 1104. The sliding assembly 12 includes a sliding block 1201, which is slidably connected to the bottom of the worktable 1105. Inside the workbench 1105, a groove 1202 is provided at the bottom of the workbench 1105 corresponding to the position of the sliding block 1201. A second fixed frame 1203 is fixedly connected to the bottom of the sliding block 1201. A second fixed shaft 1204 is fixedly connected to the inner side of the second fixed frame 1203. A second rotating cylinder 1205 is rotatably connected to the outer ring of the second fixed shaft 1204. A slide plate 1206 is fixedly connected to the bottom of the second rotating cylinder 1205. The slide plate 1206 is slidably connected to the top of the frame 4. A limit piece 1207 is fixedly connected to the bottom of the slide plate 1206.

[0027] Furthermore, the first rotating drum 1103 is rotatably connected to the outer ring of the first fixed shaft 1102, which drives the worktable 1105 to rotate through the connecting block 1104. This allows the operator to adjust the angle of the workpiece when cutting or grinding the workpiece fixed on the top of the worktable 1105, avoiding the inconvenience of applying force when processing the lower corner of the workpiece and increasing the convenience of processing the workpiece. Example 2

[0028] See Figure 3 and Figure 4 Furthermore, based on Embodiment 1, the positioning mechanism 2 includes an adjustment component 21, a pressing component 22, and a limiting component 23. The adjustment component 21 is disposed on the top of the flipping component 11, the sliding component 12 is disposed inside the top of the adjustment component 21, and the limiting component 23 is disposed inside the pressing component 22.

[0029] Adjustment component 21 includes a fixed rod 2101, which is fixedly connected to the top of the workbench 1105. A support beam 2102 is fixedly connected to the top of the fixed rod 2101. A telescopic slide rod 2103 is slidably connected inside the support beam 2102. A limit plate 2104 is fixedly connected to the outer side of the telescopic slide rod 2103. A second rotating cylinder 1205 is fixedly connected to the inner side of the telescopic slide rod 2103. Pressing component 22 includes a fixed screw cylinder 2201, which is fixedly connected to the fixed block 2105. A threaded rod 2202 is threadedly connected to the inner ring of the fixed screw cylinder 2201. A torsion disc 2203 is fixedly connected to the top of the threaded rod 2202. A connecting rotating cylinder 2204 is rotatably connected to the bottom end of the threaded rod 2202. The bottom of the connecting drum 2204 is fixedly connected to a pressure block 2205. The limiting component 23 includes a limiting slide rod 2301. The limiting slide rod 2301 is fixedly connected to the top of the pressure block 2205 at the left and right sides of the threaded rod 2202. The limiting slide rod 2301 is slidably connected to the fixed block 2105. The top of the limiting slide rod 2301 is fixedly connected to a limiting block 2302.

[0030] Furthermore, the fixing block 2105 moves back and forth via the telescopic slide rod 2103 slidably connected within the support beam 2102, allowing the device to fix workpieces of different lengths. The fixing blocks 2105 on both the front and rear sides can move independently. Compared to existing linkage clamping structures, this device can fix certain irregularly shaped workpieces, increasing its applicability. The limiting slide rod 2301, arranged in a basket within the fixing block 2105, limits the pressure block 2205, preventing misalignment during lifting and lowering, thus increasing structural stability. The limiting plate 2104 limits the telescopic slide rod 2103, ensuring it remains connected to the fixing block 2105 during inward movement, further enhancing structural stability. Example 3

[0031] See Figure 2 and Figures 6 to 9 Furthermore, based on Embodiment 1 and Embodiment 2, the fixing mechanism 3 includes a driving component 31, a transmission component 32, and a positioning component 33. The driving component 31 is disposed at the bottom of the frame 4, the transmission component 32 is disposed at the bottom of the frame 4 above the driving component 31, and the positioning component 33 is disposed at the bottom of the frame 4 corresponding to the sliding component 12.

[0032] Drive assembly 31 includes a first support rotating cylinder 3101, which is fixedly connected to the front bottom of the frame 4. A first connecting arm 3102 is fixedly connected to the bottom of the first support rotating cylinder 3101. A worm gear shaft 3103 is rotatably connected to the inner ring of the first connecting arm 3102. A turntable 3104 is fixedly connected to the front of the worm gear shaft 3103. A rocker arm 3105 is fixedly connected to the front of the turntable 3104. A lever is fixedly connected to the front of the frame 4 at a position corresponding to the turntable 3104. The slider 3106 is positioned on the rear side of the turntable 3104, corresponding to the position of the slider 3106. A second support cylinder 3107 is rotatably connected to the rear end of the worm shaft 3103. A second connecting arm 3108 is fixedly connected to the top of the second support cylinder 3107. The second connecting arm 3108 is fixedly connected to the bottom of the frame 4. The transmission assembly 32 includes a worm gear 3201, which meshes with the top of the worm shaft 3103. A double-axis screw is fixedly connected to the inner ring of the worm gear 3201. 3202, a third support cylinder 3203 is sleeved on the outer ring of the dual-axis screw 3202, located on both sides of the worm gear 3201. A third connecting arm 3204 is fixedly connected to the top of the third support cylinder 3203 and is fixedly connected to the bottom of the frame 4. The positioning component 33 includes a rectangular sleeve 3301, which is fixedly connected to the bottom of the frame 4 at the position corresponding to the slide plate 1206. The rectangular sleeve 3301 is sleeved on the outer ring of the slide plate 1206. A fixed sleeve 3302 is fixedly connected to the outside of the sleeve 3301. A rubber block 3303 is slidably connected inside the fixed sleeve 3302. A connecting slide rod 3304 is fixedly connected to the outside of the rubber block 3303. The connecting slide rod 3304 is slidably connected to the inside of the outside of the fixed sleeve 3302. A connecting plate 3305 is fixedly connected to the outside of the connecting slide rod 3304. A threaded cylinder 3306 is fixedly connected to the inside of the connecting plate 3305. The threaded cylinder 3306 is threadedly connected to the outer ring of the double-shaft screw 3202.

[0033] Furthermore, by simply cranking the rocker arm 3105, the staff can move the rubber blocks 3303 on both sides outward or inward simultaneously within the fixed cylinder 3302. This facilitates the staff in positioning or releasing the skateboard 1206. The operation is simple and convenient for the staff. When the rubber blocks 3303 move inward and come into contact with the outer side of the skateboard 1206, they generate a large frictional force, preventing the skateboard 1206 from moving up and down within the rectangular sleeve 3301. The operation is simple and convenient for the staff.

[0034] In actual operation, when this device is in use and the angle of the worktable 1105 needs to be adjusted, the operator first moves the worktable 1105 to adjust it to a suitable angle. Then, the operator holds the rocker arm 3105 and rotates it. The rotation of the rocker arm 3105 drives the worm shaft 3103 to rotate via the turntable 3104. The rotation of the worm shaft 3103 drives the double-axis screw 3202 to rotate via the worm wheel 3201. The rotation of the double-axis screw 3202 drives the threaded cylinders 3306 on both sides to move inward synchronously. 306 moves inward, driving the connecting slide bar 3304 to move inward via the connecting plate 3305. The connecting slide bar 3304 moves inward, causing the rubber block 3303 to move inward within the fixed cylinder 3302. The fixed cylinder 3302 moves inward, passing through the rectangular sleeve 3301 and tightly fitting against the outer side of the slide plate 1206. After the outer side of the slide plate 1206 fits against the inner side of the rubber block 3303, a large frictional force is generated, preventing the slide plate 1206 from moving up and down within the rectangular sleeve 3301. At this point, the angle adjustment of the worktable 1105 is completed. When it is necessary to position the workpiece, the worker first places the workpiece to be processed on the top of the workbench 1105. Then, the worker pushes the limiting plates 2104 on the front and rear sides. The movement of the limiting plates 2104 causes the pressure blocks 2205 to move until the pressure blocks 2205 on the front and rear sides are aligned with the front and rear sides of the workpiece below. Then, the worker rotates the torsion plate 2203. The rotation of the torsion plate 2203 causes the threaded rod 2202 to rotate. The threaded rod 2202 rotates and moves downward within the fixed screw cylinder 2201. The downward movement of the threaded rod 2202 causes the pressure blocks 2205 to move downward. The downward movement of the pressure blocks 2205 makes them fit against the front and rear sides of the top of the workpiece, thus completing the workpiece fixing work.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A positioning tool for automobile parts, comprising a stand (4), characterized in that: The bottom of the platform (4) is fixedly connected with a support leg (5), the top of the platform (4) is provided with a flipping mechanism (1), the top of the flipping mechanism (1) is provided with a positioning mechanism (2), and the bottom of the platform (4) is provided with a fixing mechanism (3). The flipping mechanism (1) includes a flipping component (11) and a sliding component (12). The flipping component (11) is disposed on the top of the platform (4), and the sliding component (12) is disposed on the bottom of the flipping component (11). The positioning mechanism (2) includes an adjustment component (21), a pressing component (22), and a limiting component (23). The adjustment component (21) is located on top of the flipping component (11), the sliding component (12) is located inside the top of the adjustment component (21), and the limiting component (23) is located inside the pressing component (22). The fixing mechanism (3) includes a drive component (31), a transmission component (32) and a positioning component (33). The drive component (31) is located at the bottom of the platform (4). The transmission component (32) is located at the bottom of the platform (4) above the drive component (31). The positioning component (33) is located at the bottom of the platform (4) corresponding to the sliding component (12).

2. The positioning tooling for automotive parts as claimed in claim 1 wherein: The flipping assembly (11) includes a first fixed frame (1101), which is fixedly connected to the top of the frame (4). A first fixed shaft (1102) is fixedly connected to the inner side of the first fixed frame (1101). A first rotating cylinder (1103) is rotatably connected to the outer ring of the first fixed shaft (1102). A connecting block (1104) is fixedly connected to the top of the first rotating cylinder (1103). A worktable (1105) is fixedly connected to the top of the connecting block (1104).

3. The positioning fixture for automotive parts according to claim 1, characterized in that: The sliding assembly (12) includes a sliding block (1201), which is slidably connected to the bottom of the workbench (1105). A groove (1202) is provided in the bottom of the workbench (1105) corresponding to the position of the sliding block (1201). A second fixed frame (1203) is fixedly connected to the bottom of the sliding block (1201). A second fixed shaft (1204) is fixedly connected to the inner side of the second fixed frame (1203). A second rotating cylinder (1205) is rotatably connected to the outer ring of the second fixed shaft (1204). A sliding plate (1206) is fixedly connected to the bottom of the second rotating cylinder (1205). The sliding plate (1206) is slidably connected to the top of the frame (4). A limit piece (1207) is fixedly connected to the bottom of the sliding plate (1206).

4. A positioning fixture for automotive parts according to claim 1, characterized in that: The adjustment assembly (21) includes a fixed rod (2101), which is fixedly connected to the top of the workbench (1105). A support beam (2102) is fixedly connected to the top of the fixed rod (2101). A telescopic slide rod (2103) is slidably connected inside the support beam (2102). A limit plate (2104) is fixedly connected to the outside of the telescopic slide rod (2103). A second rotating cylinder (1205) is fixedly connected to the inside of the telescopic slide rod (2103).

5. A positioning fixture for automotive parts according to claim 1, characterized in that: The pressing assembly (22) includes a fixed screw cylinder (2201), which is fixedly connected to the fixed block (2105). The inner ring of the fixed screw cylinder (2201) is threaded with a threaded rod (2202). A torsion disc (2203) is fixedly connected to the top of the threaded rod (2202). A connecting drum (2204) is rotatably connected to the bottom of the threaded rod (2202). A pressure block (2205) is fixedly connected to the bottom of the connecting drum (2204).

6. A positioning fixture for automotive parts according to claim 1, characterized in that: The limiting component (23) includes a limiting slide rod (2301), which is fixedly connected to the top of the pressure block (2205) at the left and right sides of the threaded rod (2202). The limiting slide rod (2301) is slidably connected to the fixed block (2105), and the top of the limiting slide rod (2301) is fixedly connected to the limiting block (2302).

7. A positioning fixture for automotive parts according to claim 1, characterized in that: The drive assembly (31) includes a first support cylinder (3101), which is fixedly connected to the front bottom of the frame (4). A first connecting arm (3102) is fixedly connected to the bottom of the first support cylinder (3101). A worm gear shaft (3103) is rotatably connected to the inner ring of the first connecting arm (3102). A turntable (3104) is fixedly connected to the front side of the worm gear shaft (3103), and a rocker arm is fixedly connected to the front side of the turntable (3104). (3105) A limiting slider (3106) is fixedly connected to the front side of the platform (4) corresponding to the position of the turntable (3104). A groove is opened on the rear side of the turntable (3104) corresponding to the position of the limiting slider (3106). The rear end of the worm shaft (3103) is rotatably connected to a second support cylinder (3107). A second connecting arm (3108) is fixedly connected to the top of the second support cylinder (3107). The second connecting arm (3108) is fixedly connected to the bottom of the platform (4).

8. A positioning fixture for automotive parts according to claim 1, characterized in that: The transmission assembly (32) includes a worm gear (3201), which meshes with the top of the worm shaft (3103). The inner ring of the worm gear (3201) is fixedly connected to a double-shaft screw (3202). The outer ring of the double-shaft screw (3202) is sleeved with a third support cylinder (3203) on the left and right sides of the worm gear (3201). The top of the third support cylinder (3203) is fixedly connected to a third connecting arm (3204), which is fixedly connected to the bottom of the frame (4).

9. A positioning fixture for automotive parts according to claim 1, characterized in that: The positioning component (33) includes a rectangular sleeve (3301), which is fixedly connected to the bottom of the frame (4) at the position corresponding to the slide plate (1206). The rectangular sleeve (3301) is sleeved on the outer ring of the slide plate (1206). A fixed cylinder (3302) is fixedly connected to the outside of the rectangular sleeve (3301). A rubber block (3303) is slidably connected inside the fixed cylinder (3302). A connecting slide rod (3304) is fixedly connected to the outside of the rubber block (3303). The connecting slide rod (3304) is slidably connected to the inside of the outside of the fixed cylinder (3302). A connecting plate (3305) is fixedly connected to the outside of the connecting slide rod (3304). A threaded cylinder (3306) is fixedly connected to the inside of the connecting plate (3305). The threaded cylinder (3306) is threadedly connected to the outer ring of the double-axis screw (3202).

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