Positioning device for manufacturing automobile parts

Abstract

The invention provides a positioning device for manufacturing automobile parts, which belongs to the technical field of automobile clamps and comprises a base plate, a concave plate, a moving groove, a first clamping unit, an extension plate, a transverse moving plate, a vertical plate and a second clamping unit. When the two second clamping units move to the positions corresponding to or not corresponding to the positions of the two first clamping units through the transverse moving plate, the two second clamping units can synchronously clamp or break away from the two first clamping units in the moving process of the two first clamping units; the position of the second clamping unit is adjusted through the transverse moving plate, so that the second clamping unit corresponds to or is staggered with the first clamping unit, multiple synchronous clamping of straight and special-shaped pipe accessories is achieved, the clamping stability is enhanced through the design, displacement and shaking of the accessories in the machining or transporting process are prevented, the waiting time is shortened due to synchronous operation, and the machining efficiency is improved. Therefore, the overall production efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile fixtures, and in particular to a positioning device used for manufacturing automobile accessories. Background Art

[0002] Currently, in the manufacturing process of auto parts, fixtures are usually required to keep auto parts in the correct position for easy processing and testing, such as pipe fittings.

[0003] Traditional fixtures are often designed to only fit specific shapes, such as straight pipes, making them ineffective for clamping irregularly shaped and curved pipes. This one-to-one design significantly limits the flexibility and efficiency of production lines. Whenever a different type of pipe needs to be processed, the entire fixture or key components often need to be replaced. This not only increases operational complexity but also incurs additional costs and time. As a result, the fixed design of traditional fixtures makes it difficult to quickly adapt to these changes, hindering the rapid development and production of new products. To address this issue, the present invention proposes a positioning device for manufacturing automotive parts. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a positioning device for manufacturing automobile parts that can overcome the above problems or at least partially solve the above problems.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is: a positioning device for manufacturing automotive accessories, comprising a base plate and a concave plate fixed on the base plate, the top of the concave plate is provided with a movable groove, the inner wall of the movable groove is slidably provided with a pair of clamping units located above the concave plate, and further comprising a pair of extension plates fixed on the concave plate, a transverse movable plate is slidably provided between the two extension plates, a pair of vertical plates are fixed on the top of the transverse movable plate, a pair of vertically symmetrical clamping units are fixed between the two vertical plates and are aligned with the clamping units. The linked clamping units 2, when the positions of the two clamping units 2 correspond to the positions of the two clamping units 1, the two clamping units 2 will synchronously clamp the straight pipe fittings as the two clamping units 1 move toward each other, and will synchronously release the straight pipe fittings as the two clamping units 1 move away from each other; when the positions of the two clamping units 2 do not correspond to the positions of the two clamping units 1, the two clamping units 2 will synchronously clamp the special-shaped pipe fittings as the two clamping units 1 move toward each other, and will synchronously release the special-shaped pipe fittings as the two clamping units 1 move away from each other.

[0006] Preferably, a pair of support plates are fixed on the top of the concave plate, and support grooves are formed on the support plates.

[0007] Preferably, the clamping unit 1 includes an L-shaped movable plate that fits with the inner wall of the movable groove, and corresponding clamping plates 1 are fixed on opposite sides of the two L-shaped movable plates. A driving part is installed on the concave plate, and the output end of the driving part is connected to a bidirectional threaded rod that is rotatably arranged between the side walls of the concave plates, and the two L-shaped movable plates are threadedly connected to the bidirectional threaded rod.

[0008] Preferably, a cavity is provided in the splint, and a filter hole connected to the cavity is evenly provided on the clamping side of the splint, and an air hose is fixed on the L-shaped movable plate, one end of the air hose is connected to the interior of the cavity, and the other end of the air hose is provided with a connecting piece located between the two L-shaped movable plates.

[0009] Preferably, the connecting member includes an air guide cylinder fixed on the top wall of the concave plate, the air guide hose is connected to the interior of the air guide cylinder at one end located outside the clamping plate, a pair of piston blocks are sliding on the inner wall of the air guide cylinder, a push rod is fixed on the piston block, and the push rod is fixed to the L-shaped movable plate at one end located outside the air guide cylinder.

[0010] Preferably, a screw rod is rotatably arranged between the two extension plates, the transverse moving plate is threadedly connected to the screw rod, a sliding sleeve on the transverse moving plate is provided with a guide rod fixed between the two extension plates, and an operating part is fixed on one end of the screw rod extending outside the extension plate.

[0011] Preferably, the operating portion comprises a circular rotating block fixed to an end of the screw rod extending outside the extension plate, and a pair of extension rods are fixed to a surface of the circular rotating block.

[0012] Preferably, the second clamping unit includes a circular connecting tube, a pair of limit bars located between the two vertical plates are fixed on the connecting tube, a vertical rod is slid on the connecting tube, a circular block that fits the inner wall of the connecting tube is fixed at one end of the vertical rod, a spring 1 is sleeved on the vertical rod and fixed between the circular block and the inner wall of the connecting tube, a clamping plate 2 is fixed at the other end of the vertical rod, and a connecting piece 2 is provided between the connecting tube and the L-shaped movable plate.

[0013] Preferably, a second cavity is provided in the second splint, and two filter holes connected to the second cavity are evenly distributed on the clamping side of the second splint, and a second air hose is connected to the connecting tube, and the other end of the second air hose is connected to the interior of the second cavity.

[0014] Preferably, the second connecting member includes a mounting plate fixed on the top of the concave plate, a second air guide cylinder is fixed on the mounting plate, a third air guide hose is connected between the surface of the second air guide cylinder and the surface of the connecting cylinder, a second piston block slides on the inner wall of the second air guide cylinder, a second push rod is fixed on the second piston block, and one end of the second push rod extending outside the second air guide cylinder is fixed on the L-shaped movable plate.

[0015] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art: The present invention uses a transverse movable plate to adjust the position of the second clamping unit so that it corresponds to or is offset from the first clamping unit. This is so that the device can switch clamping modes according to straight and shaped pipe fittings to accurately meet the different clamping requirements of straight and shaped pipe fittings. When processing straight pipe fittings, the transverse movable plate adjusts the second clamping unit to a position corresponding to the first clamping unit, thereby achieving a stable clamping of both ends of the fitting. When facing shaped pipe fittings, the transverse movable plate offsets the second clamping unit so as to clamp specific parts of the fitting at different positions or shapes. At the same time, when the bidirectional threaded rod cooperates with the opposite or opposite movement of the two L-shaped movable plates, the second clamping plate in the clamping unit 2 can be synchronized with the first clamping plate in the clamping unit 1 to clamp or release different pipe fittings. This design not only improves the efficiency and accuracy of the clamping operation, but also reduces the risk of displacement and shaking of pipe fittings during processing or transportation, providing strong guarantees for the stability and safety of the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a positioning device for manufacturing automobile parts provided by the present invention; Figure 2 A schematic diagram of the side structure of a positioning device for manufacturing automotive parts provided by the present invention Figure 1 ; Figure 3 A schematic diagram of the side structure of a positioning device for manufacturing automotive parts provided by the present invention Figure 2 ; Figure 4 A schematic diagram of the top view of a positioning device for manufacturing automotive parts provided by the present invention Figure 1 ; Figure 5 A schematic diagram of the top view of a positioning device for manufacturing automotive parts provided by the present invention Figure 2 ; Figure 6 This is a schematic cross-sectional view of an air guide cylinder of a positioning device for manufacturing automotive accessories provided by the present invention; Figure 7A schematic cross-sectional view of a clamping plate of a positioning device for manufacturing automobile parts provided by the present invention; Figure 8 The present invention provides a schematic cross-sectional view of a second substrate of a positioning device for manufacturing automotive parts.

[0017] In the figure: 1. Base plate; 2. Concave plate; 21. Moving groove; 22. Driving unit; 23. Bidirectional threaded rod; 3. Clamping unit 1; 31. L-shaped moving plate; 32. Clamping plate 1; 33. Cavity 1; 34. Filter hole 1; 35. Air guide hose 1; 36. Connecting piece 1; 361. Air guide cylinder 1; 362. Piston block 1; 363. Push rod 1; 4. Extension plate; 41. Horizontal moving plate; 42. Vertical plate; 43. Screw; 44. Guide rod; 45. Operating unit ;451. Circular rotating block;452. Extension rod;5. Clamping unit two;51. Connecting tube;52. Limiting strip;53. Vertical rod;54. Circular block;55. Spring one;56. Clamp two;57. Connecting piece two;571. Mounting plate;572. Gas cylinder two;573. Gas hose three;574. Piston block two;575. Push rod two;58. Cavity two;59. Filter mesh hole two;510. Gas hose two;6. Support plate;61. Support groove. DETAILED DESCRIPTION

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments so that those skilled in the art can implement the invention with reference to the description.

[0019] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0020] In the description of the present invention, the terms "horizontal", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] Example 1: Reference Figures 1-6A positioning device for manufacturing automotive accessories includes a base plate 1 and a concave plate 2 fixed on the base plate 1, a pair of support plates 6 are fixed on the top of the concave plate 2, and a support groove 61 is opened on the support plate 6. A movable groove 21 is provided on the top of the concave plate 2, and a pair of clamping units 3 located above the concave plate 2 slide on the inner wall of the movable groove 21. The clamping unit 3 includes an L-shaped movable plate 31 that fits with the inner wall of the movable groove 21, and corresponding clamping plates 32 are fixed on the opposite sides of the two L-shaped movable plates 31. A driving part 22 is installed on the concave plate 2, and the output end of the driving part 22 is connected to a bidirectional threaded rod 23 that is rotatably arranged between the side walls of the concave plate 2, and the two L-shaped movable plates 31 are threadedly connected to the bidirectional threaded rod 23.

[0022] When it is necessary to clamp a straight-shaped tubular automotive accessory, the accessory is first placed in the support groove 61 between the two support plates 6, and then the drive unit 22 using a servo motor is started to drive the bidirectional threaded rod 23 to rotate. Since the two L-shaped movable plates 31 are respectively threadedly connected to the two ends of the bidirectional threaded rod 23, and the thread directions are opposite, the two L-shaped movable plates 31 will move toward each other along the movable groove 21. As the L-shaped movable plate 31 moves, the splint 1 32 fixed thereon will also move toward each other, thereby clamping the straight tubular automotive accessory placed on the support plate 6. When it is necessary to release the straight tubular automotive accessory, the drive unit 22 is started to rotate the bidirectional threaded rod 23 in the opposite direction, and the two L-shaped movable plates 31 will move back to back along the movable groove 21, and the splint 1 32 will also release the straight tubular automotive accessory.

[0023] Example 2: Based on the above embodiment, considering that the clamping plate 32 is usually exposed to the workshop environment when not in use, it is easy to be attached with dust, which causes the clamping plate 32 to clamp the pipe fittings, not only causing wear between the pipe fittings and the clamping plate 32, but also the presence of dust may reduce the friction between the clamping plate and the exhaust pipe surface, resulting in a loose clamping, thereby affecting the stability and reliability of the clamping plate. Therefore, based on this problem, reference is made to Figure 6 and Figure 7, a cavity 33 is provided in the splint 32, and a filter hole 34 is evenly provided on the clamping side of the splint 32, which is connected to the cavity 33. An air guide hose 35 is fixed on the L-shaped movable plate 31, and one end of the air guide hose 35 is connected to the interior of the cavity 33. The other end of the air guide hose 35 is provided with a connector 36 located between the two L-shaped movable plates 31. The connector 36 includes an air guide cylinder 361 fixed on the top wall of the concave plate 2, and one end of the air guide hose 35 located outside the splint 32 is connected to the interior of the air guide cylinder 361. A pair of piston blocks 362 are slidably arranged on the inner wall of the air guide cylinder 361, and a push rod 363 is fixed on the piston block 362. The end of the push rod 363 located outside the air guide cylinder 361 is fixed to the L-shaped On the movable plate 31, through such a design, the two clamping plates 32 can move toward each other with the help of the two L-shaped movable plates 31 through the two-way threaded rods 23 before clamping. The push rods 363 corresponding to the two L-shaped movable plates 31 will drive the piston block 362 to slide along the inner wall of the gas cylinder 361, and the compressed gas inside the gas cylinder 361 can be transported into the cavity 33 inside the clamping plate 32 through the gas hose 35, and then discharged through the filter hole 34, forming an air flow to blow away the dust on the clamping surface of the clamping plate 32. This not only reduces the wear on the surface of the clamping plate 32 and the pipe accessories, but also, after cleaning, the surface of the clamping plate 32 will be cleaner, the friction between it and the pipe accessories will increase, and the clamping will be more firm and stable.

[0024] Example 3: Based on the above example, refer to Figure 2-Figure 5, also includes a pair of extension plates 4 fixed on the concave plate 2, a transverse moving plate 41 is slidingly provided between the two extension plates 4, a pair of vertical plates 42 are fixed on the top of the transverse moving plate 41, and a pair of clamping units 2 5 that are symmetrical up and down and linked to the clamping unit 1 3 are fixed between the two vertical plates 42. When the positions of the two clamping units 2 5 correspond to the positions of the two clamping units 1 3, the two clamping units 2 5 synchronously clamp the straight pipe fittings as the two clamping units 1 3 move toward each other, and synchronously release the straight pipe fittings as the two clamping units 1 3 move away from each other. When the positions of the two clamping units 2 5 do not correspond to the positions of the two clamping units 1 3, the two clamping units 2 5 synchronously clamp the special-shaped pipe fittings as the two clamping units 1 3 move toward each other, and synchronously release the special-shaped pipe fittings as the two clamping units 1 3 move away from each other, and move the clamping units 2 5 by the transverse moving plate 41. When element 25 corresponds to the same horizontal position as clamping unit 13, it can respectively clamp the parts of straight pipe fittings near the two ends. When the horizontal moving plate 41 moves clamping unit 25 not to the same horizontal position as clamping unit 13, it can respectively clamp different parts of special-shaped pipe fittings. The purpose of this design is to be able to perform multiple clamping on different pipe fittings, provide a more stable clamping effect, and further prevent the displacement or shaking of different pipe fittings during processing or transportation. At the same time, clamping unit 13 and clamping unit 25 operate synchronously when clamping or disengaging different pipe fittings. Compared with clamping unit 13 and clamping unit 25 clamping in sequence through separate steps, the waiting time that may be generated during separate operation is avoided. This instant response reduces the non-production time in the overall operation cycle and improves production efficiency.

[0025] For the above technical solution, in order to enable the transverse moving plate 41 to move between the two extension plates 4, a screw rod 43 is rotatably provided between the two extension plates 4, the transverse moving plate 41 is threadedly connected to the screw rod 43, and a sliding sleeve is provided on the transverse moving plate 41 with a guide rod 44 fixed between the two extension plates 4, and an operating part 45 is fixed on one end of the screw rod 43 extending outside the extension plate 4. The operating part 45 includes a circular rotating block 451 fixed on the end of the screw rod 43 extending outside the extension plate 4, and a pair of extension rods 452 are fixed on the surface of the circular rotating block 451. When in use, it can be operated by hand by cooperating with the rotation of the circular rotating block 451 and the extension rod 452. The horizontal movable plate 41 threadedly connected to the screw rod 43 can be stably positioned between the two extension plates 4 and moved under the limitation of the guide rod 44, thereby realizing the position adjustment between the clamping unit 2 5 and the clamping unit 1 3. Of course, it needs to be further explained that the horizontal movable plate 41 adopts a handle structure to drive the screw rod 43 because the device is not frequently operated when switching according to different types of pipe fittings, and does not need to adopt an automatic method, which can save the cost of device manufacturing. The bidirectional threaded rod 23 adopts an automatic method because the clamping unit 1 3 and the clamping unit 2 5 need to be clamped and disengaged frequently, so it is more convenient to adopt an automatic method.

[0026] Reference Figures 1-8 In order to enable the clamping unit 2 5 to be clamped synchronously with the clamping unit 1 3 , the clamping unit 2 5 includes a circular connecting tube 51, a pair of limit bars 52 located between the two vertical plates 42 are fixed on the connecting tube 51, a vertical rod 53 is slid on the connecting tube 51, one end of the vertical rod 53 is fixed with a circular block 54 that fits the inner wall of the connecting tube 51, a spring 1 55 is sleeved on the vertical rod 53 and fixed between the circular block 54 and the inner wall of the connecting tube 51, a clamping plate 2 56 is fixed on the other end of the vertical rod 53, and a connecting piece 2 57 is provided between the connecting tube 51 and the L-shaped movable plate 31, and the connecting piece 2 57 includes a mounting plate 571 fixed on the top of the concave plate 2 An air cylinder 2 572 is fixed on the mounting plate 571, and an air hose 3 573 is connected between the surface of the air cylinder 2 572 and the surface of the connecting cylinder 51. A piston block 2 574 slides on the inner wall of the air cylinder 2 572, and a push rod 2 575 is fixed on the piston block 2 574. The push rod 2 575 is located at one end extending outside the air cylinder 2 572 and is fixed on the L-shaped movable plate 31. A cavity 2 58 is provided in the splint 2 56, and filter holes 2 59 connected to the cavity 2 58 are evenly distributed on the clamping side of the splint 2 56. An air hose 2 510 is connected to the connecting cylinder 51, and the other end of the air hose 2 510 is connected to the interior of the cavity 2 58.

[0027] In the above technical solution, the design of the clamping unit 2 5 can utilize the bidirectional threaded rod 23 to cooperate with the two L-shaped movable plates 31. When they move toward each other, the push rod 2 575 correspondingly connected on the two L-shaped movable plates 31 will pull the piston block 2 574 to slide along the inner wall of the gas cylinder 2 572, and the compressed gas inside the gas cylinder 2 572 is transported into the interior of the connecting tube 51 through the gas hose 3 573, which is used to push the circular block 54 to slide along the inner wall of the connecting tube 51 to squeeze the spring 1 55, so that the vertical rod 53 connected to the circular block 54 can drive the clamp plate 2 56 to tightly clamp the upper and lower surfaces of the pipe accessories during the sliding process of the circular block 54.

[0028] At the same time, in the process of the circular block 54 sliding along the inner wall of the connecting tube 51 to drive the clamping of the second splint 56, the circular block 54 can also transport the gas inside the connecting tube 51 into the second cavity 58 through the gas guide hose 2 510, and then discharge it through the filter hole 2 59, forming an air flow to blow away the dust on the clamping surface of the second splint 56. This not only reduces the wear on the surface of the second splint 56 and the pipe accessories, but also, the surface of the cleaned splint 2 56 will be cleaner, the friction between the splint 2 56 and the pipe accessories will increase, and the clamping will be more firm and stable, so that the second splint 56 and the first splint 32 can both be used to clean the dust during the clamping process.

[0029] It should be noted that when the second splint 56 needs to be detached after clamping, the two-way threaded rod 23 cooperates with the two L-shaped movable plates 31 to move in the opposite direction. The internal air pressure of the connecting tube 51 will return to the air guide tube 2 572 again under the transportation of the air guide hose 2 510, so that the circular block 54 can automatically drive the second splint 56 to detach from the surface of the pipe fitting without the support of air pressure and the elastic reset of the spring 1 55.

[0030] The above embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patented invention. It should be noted that those skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention. These variations and improvements are equivalent modifications and improvements to the above embodiments based on the essential technology of the present invention and fall within the scope of protection of the present invention.

Claims

1. A positioning device for manufacturing automobile parts, comprising: A base plate (1) and a concave plate (2) fixed on the base plate (1), wherein a movable groove (21) is provided on the top of the concave plate (2), and a pair of clamping units (3) located above the concave plate (2) slide on the inner wall of the movable groove (21), characterized in that it also includes: a pair of extension plates (4) fixed on the concave plate (2), a transverse movable plate (41) being slidably arranged between the two extension plates (4), a pair of vertical plates (42) being fixed on the top of the transverse movable plate (41), and a pair of vertically symmetrical clamping units (5) being fixed between the two vertical plates (42) and being linked to the clamping unit (3); When the positions of the two clamping units 2 (5) correspond to the positions of the two clamping units 1 (3), the two clamping units 2 (5) synchronously clamp the straight pipe fittings as the two clamping units 1 (3) move toward each other, and synchronously release the straight pipe fittings as the two clamping units 1 (3) move away from each other; When the positions of the two clamping units 2 (5) and the two clamping units 1 (3) do not correspond, the two clamping units 2 (5) clamp the special-shaped pipe fittings synchronously as the two clamping units 1 (3) move toward each other, and release the special-shaped pipe fittings synchronously as the two clamping units 1 (3) move away from each other.

2. A positioning device for manufacturing automobile parts according to claim 1, characterized in that: A pair of support plates (6) are fixed to the top of the concave plate (2), and support grooves (61) are provided on the support plates (6).

3. A positioning device for manufacturing automobile parts according to claim 1, characterized in that: The clamping unit 1 (3) comprises an L-shaped movable plate (31) fitted with the inner wall of the movable groove (21), and corresponding clamping plates 1 (32) are fixed on opposite sides of the two L-shaped movable plates (31). A driving part (22) is installed on the concave plate (2), and the output end of the driving part (22) is connected to a bidirectional threaded rod (23) rotatably arranged between the side walls of the concave plate (2), and the two L-shaped movable plates (31) are threadedly connected to the bidirectional threaded rod (23).

4. A positioning device for manufacturing automobile parts according to claim 3, characterized in that: A cavity (33) is provided in the clamping plate (32); a filter mesh hole (34) connected to the cavity (33) is evenly provided on a clamping side of the clamping plate (32); an air guide hose (35) is fixed to the L-shaped movable plate (31); one end of the air guide hose (35) is connected to the interior of the cavity (33); and the other end of the air guide hose (35) is provided with a connecting piece (36) located between the two L-shaped movable plates (31).

5. A positioning device for manufacturing automobile parts according to claim 4, characterized in that: The connecting member 1 (36) comprises an air guide cylinder 1 (361) fixed on the top wall of the concave plate (2); one end of the air guide hose 1 (35) located outside the clamping plate 1 (32) is connected to the interior of the air guide cylinder 1 (361); a pair of piston blocks 1 (362) slide on the inner wall of the air guide cylinder 1 (361); a push rod 1 (363) is fixed on the piston block 1 (362); and one end of the push rod 1 (363) located outside the air guide cylinder 1 (361) is fixed to the L-shaped movable plate (31).

6. A positioning device for manufacturing automobile parts according to claim 1, characterized in that: A screw rod (43) is rotatably arranged between the two extension plates (4), the transverse moving plate (41) is threadedly connected to the screw rod (43), a guide rod (44) is slidably sleeved on the transverse moving plate (41) and fixed between the two extension plates (4), and an operating portion (45) is fixed to one end of the screw rod (43) extending outside the extension plate (4).

7. A positioning device for manufacturing automobile parts according to claim 6, characterized in that: The operating portion (45) comprises a circular rotating block (451) fixed to an end of the screw rod (43) extending outside the extension plate (4), and a pair of extension rods (452) are fixed to the surface of the circular rotating block (451).

8. A positioning device for manufacturing automobile parts according to claim 3, characterized in that: The clamping unit 2 (5) comprises a circular connecting tube (51), a pair of limiting bars (52) located between the two vertical plates (42) being fixed on the connecting tube (51), a vertical rod (53) sliding on the connecting tube (51), a circular block (54) in contact with the inner wall of the connecting tube (51) being fixed at one end of the vertical rod (53), a spring 1 (55) being sleeved on the vertical rod (53) and fixed between the circular block (54) and the inner wall of the connecting tube (51), a clamping plate 2 (56) being fixed at the other end of the vertical rod (53), and a connecting piece 2 (57) being provided between the connecting tube (51) and the L-shaped movable plate (31).

9. A positioning device for manufacturing automobile parts according to claim 8, characterized in that: A second cavity (58) is provided in the second clamping plate (56); a second filter mesh hole (59) in communication with the second cavity (58) is evenly distributed on one side of the second clamping plate (56); a second air guide hose (510) is in communication with the second cavity (58); the other end of the second air guide hose (510) is in communication with the interior of the second cavity (58).

10. A positioning device for manufacturing automobile parts according to claim 8, characterized in that: The second connecting member (57) comprises a mounting plate (571) fixed on the top of the concave plate (2), a second air guide cylinder (572) being fixed on the mounting plate (571), a third air guide hose (573) being connected between the surface of the second air guide cylinder (572) and the surface of the connecting cylinder (51), a second piston block (574) sliding on the inner wall of the second air guide cylinder (572), a second push rod (575) being fixed on the second piston block (574), and one end of the second push rod (575) extending outside the second air guide cylinder (572) being fixed on the L-shaped movable plate (31).

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