Automobile part production clamp

Abstract

The invention discloses an automobile part production clamp, and relates to the technical field of automobile part production equipment, the automobile part production clamp comprises a machining table, driving assemblies are fixedly arranged on the two sides of the top of the machining table, a supporting assembly is fixedly arranged in the middle of the top surface of the machining table, and horizontal clamping assemblies are rotatably arranged on the sides, close to the supporting assembly, of the two driving assemblies. An automobile part can be horizontally clamped through the horizontal clamping assembly, the driving assembly can drive the horizontally-clamped part to rotate, machining equipment can machine multiple faces of the rotated part conveniently, the part does not need to be disassembled during multi-face machining, time and labor are saved, the driving assembly can further drive the horizontal clamping assembly to move transversely, and the machining efficiency is improved. And the chain plates of the flexible clamping assemblies can be attached to the outer surfaces of the parts, so that the parts of different shapes can be conveniently clamped by the clamp, and the application range is wide.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts production equipment, in particular to an automobile parts production fixture. Background Art

[0002] A car is a vehicle with four or more non-track supports, mainly used to carry people and / or goods, or to tow vehicles carrying people and / or goods. The most common ones are cars and trucks.

[0003] Auto parts are the units and products that make up the whole car. The quality and performance of these auto parts affect the safety, comfort and reliability of the car. When drilling and other processing of auto parts, it is necessary to clamp and fix the parts with a fixture to prevent the parts from shifting during the drilling and other processing.

[0004] In the production process of automobile parts such as truck beams, it is often necessary to perform multi-faceted processing on automobile parts such as truck beams. For example, holes need to be drilled on the front and sides of the truck beam. On the one hand, drilling holes can facilitate the installation of equipment such as fuel tanks on the beam, and on the other hand, drilling holes can release the stress of the truck beam. The current automobile parts fixture generally requires the truck beam and other automobile parts to be removed from the fixture and reinstalled after processing one side of the truck beam and other automobile parts. Therefore, when processing a part, it is often necessary to disassemble and assemble it many times, which is not only time-consuming and labor-intensive, but also greatly reduces the processing speed. For this reason, the present application proposes an automobile parts production fixture. Summary of the invention

[0005] The purpose of the present application is to solve the problem that after processing one surface of an automobile part fixture, the part needs to be removed from the fixture and reinstalled to process the other surface of the part.

[0006] To achieve the above object, the present invention provides the following technical solutions: An automobile parts production fixture comprises a processing table, wherein driving components are fixedly arranged on both sides of the top of the processing table, a supporting component is fixedly arranged on the middle of the top surface of the processing table, and horizontal clamping components are rotatably arranged on one side of the two driving components close to the supporting component; The horizontal clamping assembly comprises a fixing frame, two first square rods movably arranged on one side of the fixing frame and symmetrically, and two horizontal clamping plates fixedly arranged at one end of the first square rods, and a flexible clamping assembly is provided on one side of the clamping plate close to the supporting assembly; The flexible clamping assembly includes a fixed sleeve rod rotatably arranged on the outer wall of one end of the first square rod away from the clamping plate, a matching second square rod is slidably arranged inside the fixed sleeve rod, and a chain plate is rotatably arranged between one end of the second square rod and the side of the clamping plate close to the support assembly.

[0007] By adopting the above technical scheme, automobile parts can be horizontally clamped by the horizontal clamping assembly, and the driving assembly can drive the parts to rotate after horizontal clamping, so that the processing equipment can process multiple surfaces of the rotated parts. One side of the chain plate can be pressed on the outer surface of larger automobile parts with different shapes to increase the contact area between the clamp and parts of different shapes, so as to facilitate the clamp to clamp parts of different shapes.

[0008] Optionally, the driving assembly includes a fixing seat fixed on both sides of the top of the processing table, a motor is fixed on the top of the fixing seat, an iron rod is fixed on the output end of the motor, a hydraulic rod is fixed on one end of the iron rod, and the fixing frame is fixed on the output end of the hydraulic rod.

[0009] By adopting the above technical solution, the motor can drive the iron rod and other components to rotate after it is running, and the hydraulic rod can drive the fixed frame to move horizontally after it is extended and retracted.

[0010] Optionally, an electromagnet is fixedly provided on the top of the fixed seat, and the top of the electromagnet cooperates and abuts against the outer wall of the iron rod. Rollers are rotatably provided on the tops of the vertical rods on both sides of the top of the processing table, and the tops of the rollers cooperate and abut against the outer wall of the hydraulic rod.

[0011] By adopting the above technical solution, the electromagnet can absorb the iron rod after being energized to self-lock the rotating iron rod and other components, and the roller can support the rotating hydraulic rod by rotating.

[0012] Optionally, two symmetrically distributed and inclined oblique sleeves are fixedly provided at the edge of one side of the fixed frame away from the driving assembly, the first square rod is slidably arranged in the oblique sleeve, and a connecting rod is rotatably provided on the outer wall of one end of the two first square rods, and a cylinder is fixedly provided in the fixed frame, and one end of the two connecting rods is rotatably connected to the output end of the cylinder, and the output end of the cylinder is located between the two clamping plates, and a first anti-slip rubber pad is fixedly provided on the opposite side of one end of the two clamping plates close to the supporting assembly.

[0013] By adopting the above technical solution, the cylinder will press the two transferred connecting rods toward the supporting assembly side after extension and contraction. At this time, the two first square rods will move obliquely between the two clamping plates, so that the two clamping plates can clamp the automobile parts after approaching each other.

[0014] Optionally, the two adjacent chain plates are rotatably arranged on the opposite sides of the two clamping plates, and a second anti-slip rubber pad is fixedly provided between the side of the chain plate away from the second square rod and the side of the clamping plate close to the supporting assembly, and a first return spring is fixedly provided in the fixed sleeve rod, and one end of the first return spring is fixedly connected to the sliding end of the second square rod.

[0015] By adopting the above technical solution, when the fixed sleeve rod moves toward the supporting assembly side, it will squeeze the first return spring, thereby increasing the elastic force of the first return spring on the second square rod.

[0016] Optionally, the support assembly includes a hydraulic cylinder fixed at the top center of the processing table, and a support plate is rotatably provided on the top of the output end of the hydraulic cylinder.

[0017] By adopting the above technical solution, the hydraulic cylinder can drive the support plate to move up and down after being extended and retracted, so that the support plate can support parts of different sizes and specifications after being raised and lowered.

[0018] Optionally, two collecting grooves symmetrically distributed with the supporting assembly as the center are opened in the middle of the top surface of the processing table, and two groups of second return springs symmetrically distributed are fixed on the inner walls of the collecting grooves. An inclined filter plate is fixed between the top ends of the two groups of second return springs, and the outer wall of the filter plate is in cooperation with and abuts against the inner wall of the collecting groove.

[0019] By adopting the above technical solution, the filter plate can filter and separate the collected waste residue and waste water, making it convenient for people to collect and recycle the waste residue and waste water separately.

[0020] Optionally, a rubber block is fixedly provided on one side of the top of the collecting trough, the top of the rubber block cooperates and abuts against the top of the filter plate, a winding wheel is fixedly provided on the outer wall of the iron rod, a connecting rope is movably wrapped around the outer wall of the winding wheel, and the bottom end of the connecting rope passes through the processing table and is fixed in the middle of the bottom surface of the filter plate.

[0021] By adopting the above technical solution, when it is necessary to clean the waste residue on the filter plate without clamping parts, people can drive the motor to quickly release the connecting rope wound on the winding wheel, so that the filter plate hits the rubber block under the elastic force of the second return spring, and the waste residue attached to the surface of the filter plate can be shaken off over a large area. The shaken waste residue will gather at the top of the bottom end of the inclined filter plate, making it convenient for people to remove the waste residue from the filter screen plate.

[0022] In summary, the present invention includes at least one of the following beneficial effects: 1. The automotive parts can be clamped horizontally by the horizontal clamping assembly. The driving assembly can drive the parts to rotate after being clamped horizontally, which is convenient for the processing equipment to process multiple surfaces of the rotated parts. There is no need to remove the parts for multi-surface processing, which saves time and effort. The driving assembly can also drive the horizontal clamping assembly to move horizontally, which is convenient for the fixture to clamp parts of different sizes. The chain plate of the flexible clamping assembly can fit with the outer surface of the part, which is convenient for the fixture to clamp parts of different shapes, and has a wide range of applications.

[0023] 2. The support assembly can be used to support the bottom of the automobile parts to improve the stability of the parts after clamping. Through the extension and retraction of the cylinder, the two clamping plates can be driven closer to each other to clamp the automobile parts, and elastic force can be applied to the first return spring to make the chain plate fit more stably on the outer surface of the parts.

[0024] 3. The waste residue and waste water generated during processing can be collected through the collection trough, and the filter plate can filter and separate the collected waste residue and waste water, which is convenient for people to collect and recycle the waste residue and waste water separately. When there is no need to clamp the parts, the motor can be driven to quickly release the connecting rope wrapped on the winding wheel, so that the filter plate hits the rubber block under the elastic force of the second return spring, which can shake off the waste residue attached to the surface of the filter plate over a large area, making it convenient for people to collect the waste residue later. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a partial structural internal view of the present invention; Figure 3 The present invention Figure 2 A magnified view of the structure in the middle; Figure 4 It is an internal connection diagram of the fixed sleeve rod and the second square rod of the present invention; Figure 5 is a side view of a support assembly of the present invention; Figure 6 The present invention Figure 2 A magnified view of the structure in middle B.

[0026] Explanation of the accompanying drawings: 1. Processing table; 2. Driving assembly; 21. Fixed seat; 22. Motor; 23. Iron rod; 24. Hydraulic rod; 25. Electromagnet; 26. Winding wheel; 27. Connecting rope; 28. Roller; 3. Horizontal clamping assembly; 31. Fixed frame; 32. Oblique sleeve; 33. First square rod; 34. Clamping plate; 35. Connecting rod; 36. Cylinder; 37. First anti-slip rubber pad; 4. Flexible clamping assembly; 41. Fixed sleeve rod; 42. First return spring; 43. Second square rod; 44. Chain plate; 45. Second anti-slip rubber pad; 5. Support assembly; 51. Hydraulic cylinder; 52. Support plate; 6. Collecting trough; 61. Filter plate; 62. Second return spring; 63. Rubber block. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-6 The present invention is described in further detail.

[0028] The embodiment of the present invention discloses a fixture for producing automobile parts, referring to Figure 1-2, including a processing table 1, driving components 2 are fixedly provided on both sides of the top of the processing table 1, the driving components 2 include fixed seats 21 fixedly provided on both sides of the top of the processing table 1, a motor 22 is fixedly provided on the top of the fixed seat 21, an iron rod 23 is fixedly provided at the output end of the motor 22, the fixed seat 21 can support the motor 22 and other components, and the motor 22 can drive the iron rod 23 and other components to rotate after running, and the motor 22 can rotate forward and reverse, which is the existing technology and will not be elaborated here.

[0029] Reference Figure 1-2 A hydraulic rod 24 is fixed at one end of the iron rod 23. When the iron rod 23 rotates, it can drive the hydraulic rod 24 to rotate. The motor 22 will only drive the hydraulic rod 24 to rotate forward for a few circles and then reverse for a few circles to prevent the motor 22 from continuously rotating forward or reversely, causing the pipeline on the hydraulic rod 24 to be torn off due to rotation and entanglement.

[0030] Reference Figure 1-2 An electromagnet 25 is fixed on the top of the fixing seat 21, and the top of the electromagnet 25 is in contact with the outer wall of the iron rod 23. When the electromagnet 25 is energized, it can absorb the iron rod 23 to self-lock the rotating iron rod 23 and other components. When the electromagnet 25 is energized, the motor 22 is powered off, so that the electromagnet 25 will not affect the normal use of the motor 22.

[0031] Reference Figure 1-2 The tops of the vertical rods on both sides of the top of the processing table 1 are rotatably provided with rollers 28, and the tops of the rollers 28 are in contact with the outer walls of the hydraulic rods 24. The rollers 28 can support the rotating hydraulic rods 24 by rotating and reduce the resistance of the hydraulic rods 24 when rotating.

[0032] Reference Figure 1-2 A support assembly 5 is fixedly provided in the middle of the top surface of the processing table 1, and the support assembly 5 can support the automobile parts on the top. The two driving assemblies 2 are both rotatably provided with a horizontal clamping assembly 3 on one side close to the support assembly 5. After the motor 22 of the driving assembly 2 rotates, it will drive the horizontal clamping assembly 3 to rotate.

[0033] Reference Figure 1-3 The horizontal clamping assembly 3 includes a fixed frame 31, two first square rods 33 movably arranged on one side of the fixed frame 31 and symmetrically, and two horizontal clamping plates 34 fixed at one end of the first square rod 33. The fixed frame 31 is fixed at the output end of the hydraulic rod 24. After the hydraulic rod 24 is extended and retracted, it can drive the fixed frame 31 and other horizontal clamping assemblies 3 to move horizontally.

[0034] Reference Figure 1-3Two symmetrically distributed and inclined oblique sleeves 32 are fixedly provided at the edge of one side of the fixed frame 31 away from the driving assembly 2. The fixed frame 31 can support and fix the oblique sleeves 32. The first square rod 33 is slidably arranged in the oblique sleeves 32. The oblique sleeves 32 can limit the matching first square rod 33 so that the first square rod 33 can only move obliquely.

[0035] Reference Figure 1-3 , a connecting rod 35 is rotatably provided on the outer wall of one end of the two first square rods 33, a cylinder 36 is fixedly provided in the fixing frame 31, and the fixing frame 31 can support and fix the cylinder 36, and one end of the two connecting rods 35 is rotatably connected to the output end of the cylinder 36, and the output end of the cylinder 36 is located between the two clamping plates 34, so that after the cylinder 36 is extended, it will drive the two transferred connecting rods 35 to move toward the side of the support assembly 5. At this time, the two first square rods 33 will move obliquely between the two clamping plates 34, so that the two clamping plates 34 can clamp the automobile parts after approaching each other.

[0036] Reference Figure 1-3 A first anti-skid rubber pad 37 is fixedly provided on the opposite side of one end of the two clamping plates 34 close to the supporting assembly 5. The first anti-skid rubber pad 37 can increase the friction between the clamping plates 34 and the clamped automobile parts, thereby improving the clamping stability.

[0037] Reference Figure 2-4 A flexible clamping assembly 4 is provided on one side of the clamping plate 34 close to the supporting assembly 5. The flexible clamping assembly 4 includes a fixed sleeve rod 41 rotatably arranged on the outer wall of one end of the first square rod 33 away from the clamping plate 34. When the first square rod 33 moves obliquely between the two clamping plates 34, it will also drive the fixed sleeve rod 41 to move toward the supporting assembly 5 side.

[0038] Reference Figure 2-4 A matching second square rod 43 is slidably provided inside the fixed sleeve rod 41, and a first return spring 42 is fixedly provided inside the fixed sleeve rod 41. One end of the first return spring 42 is fixedly connected to the sliding end of the second square rod 43. The first return spring 42 can connect the inside of the fixed sleeve rod 41 and the second square rod 43.

[0039] Reference Figure 2-4 A chain plate 44 is rotatably provided between one end of the second square rod 43 and the side of the clamping plate 34 close to the supporting assembly 5. Two adjacent chain plates 44 are rotatably provided on the opposite sides of the two clamping plates 34. Under the elastic force of the first return spring 42, the second square rod 43 will press one side of the chain plate 44 onto an automotive part with a large volume and an uneven outer surface such as an arc surface, so as to increase the contact area between the clamp and parts of different shapes, making it convenient for the clamp to clamp parts of different shapes.

[0040] Reference Figure 2-4A second anti-skid rubber pad 45 is fixedly provided between the side of the chain plate 44 away from the second square rod 43 and the side of the clamping plate 34 close to the supporting assembly 5. The second anti-skid rubber pad 45 can increase the friction between the chain plate 44 and the automobile parts and improve the clamping stability.

[0041] When the fixing sleeve rod 41 moves toward the supporting assembly 5 until the second anti-skid rubber pad 45 contacts the automobile part, the first return spring 42 is squeezed and the elastic force of the first return spring 42 is enhanced as the fixing sleeve rod 41 continues to move under the obstruction of the automobile part.

[0042] Reference Figure 1 , Figure 2 and Figure 5 The support assembly 5 includes a hydraulic cylinder 51 fixed at the top center of the processing table 1. A support plate 52 is rotatably provided at the top of the output end of the hydraulic cylinder 51. After the hydraulic cylinder 51 is extended and retracted, it can drive the support plate 52 to rise and fall, so that the support plate 52 can support parts of different sizes after it is raised and lowered. After the support plate 52 is rotated, it can fit the bottom of the part after it rotates with the horizontal clamping assembly 3, thereby improving the stability of the support.

[0043] Reference Figure 2 and Figure 6 Two collecting grooves 6 symmetrically distributed with the support assembly 5 as the center are opened in the middle of the top surface of the processing table 1. The waste residue and waste liquid generated during the parts processing can enter the collecting groove 6 with gravity and be collected. Two groups of second return springs 62 symmetrically distributed are fixedly provided on the inner wall of the collecting groove 6. The collecting groove 6 can fix an inclined filter plate 61 between the top ends of the two groups of second return springs 62, and the second return spring 62 can elastically support the filter plate 61.

[0044] Reference Figure 2 and Figure 6 The outer wall of the filter plate 61 is in contact with the inner wall of the collecting tank 6, and the filter plate 61 can filter the waste residue and waste liquid entering the collecting tank 6, so that the waste residue can remain above the filter plate 61. The inclined filter plate 61 facilitates the waste residue to gather at the top of the bottom of the filter plate 61, making it convenient for people to centrally remove the waste residue later.

[0045] Reference Figure 2 and Figure 6 A rubber block 63 is fixedly provided on one side of the top of the collecting tank 6, and the top of the rubber block 63 is in contact with the top of the filter plate 61. The rubber block 63 can limit and block the filter plate 61, so that the top of the filter plate 61 cannot be exposed from the top of the processing table 1 under the elastic force of the second return spring 62.

[0046] Reference Figure 2 and Figure 6A winding wheel 26 is fixedly provided on the outer wall of the iron rod 23, and a connecting rope 27 is movably wound on the outer wall of the winding wheel 26. The bottom end of the connecting rope 27 passes through the processing table 1 and is fixedly provided in the middle of the bottom surface of the filter plate 61. After the iron rod 23 rotates, the connecting rope 27 can be wound or released through the winding wheel 26. The connecting rope 27 can be made of a high-strength rope body such as a steel wire rope that has been rust-proofed.

[0047] The implementation principle of an automobile parts production fixture according to an embodiment of the present invention is as follows: When in use, automobile parts such as truck beams can be placed on the support plate 52 first, and then the automobile parts can be lifted by holding the automobile parts with hands and extending the hydraulic cylinder 51. When the parts are lifted to be flush with the output end of the cylinder 36, people can extend the hydraulic rod 24 to make the two horizontal clamping assemblies 3 move laterally close to each other, and then extend the cylinder 36 after the movement. After the cylinder 36 is extended, the two transferred connecting rods 35 will be moved toward the part side. At this time, the two first square rods 33 will move obliquely between the two clamping plates 34, so that the two clamping plates 34 can clamp the automobile parts after approaching each other.

[0048] When it is necessary to clamp a large automobile part with an irregular outer surface, the hydraulic rod 24 is extended, and the cylinder 36 is extended, so that the two horizontal clamping components 3 can be close to each other and clamp the part through the second anti-slip rubber pad 45. At the same time, when the cylinder 36 is extended, it will drive the first square rod 33 to move obliquely between the two clamping plates 34, and will also drive the fixed sleeve rod 41 to move toward the support component 5 side to apply elastic force to the first return spring 42, so that the chain plate 44 can fit more stably on the outer surface of the part. With the support of the support component 5, parts of different shapes with irregular outer surfaces can be clamped.

[0049] The processing equipment can perform drilling and other processing on the clamped parts. When other surfaces of the part need to be processed, people can cut off the power to the electromagnet 25 and control the motor 22 to rotate forward or reverse to drive the part horizontally clamped by the horizontal clamping assembly 3 to rotate, making it convenient for the processing equipment to process multiple surfaces of the rotated part.

[0050] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A fixture for producing automobile parts, comprising a processing table (1), characterized in that: Drive assemblies (2) are fixedly provided on both sides of the top of the processing table (1), a support assembly (5) is fixedly provided in the middle of the top surface of the processing table (1), and horizontal clamping assemblies (3) are rotatably provided on one side of the two drive assemblies (2) close to the support assembly (5); The horizontal clamping assembly (3) comprises a fixing frame (31), two first square rods (33) movably arranged on one side of the fixing frame (31) and symmetrically arranged, and two horizontal clamping plates (34) fixedly arranged on one end of the first square rods (33), and a flexible clamping assembly (4) is provided on one side of the clamping plate (34) close to the supporting assembly (5); The flexible clamping assembly (4) comprises a fixed sleeve rod (41) rotatably arranged on the outer wall of one end of the first square rod (33) away from the clamping plate (34), a second square rod (43) matching with the first square rod (41) is slidably arranged inside the fixed sleeve rod (41), and a chain plate (44) is rotatably arranged between one end of the second square rod (43) and a side of the clamping plate (34) close to the support assembly (5).

2. The automobile parts production fixture according to claim 1, characterized in that: The driving assembly (2) comprises a fixing seat (21) fixedly arranged on both sides of the top of the processing table (1); a motor (22) is fixedly arranged on the top of the fixing seat (21); an iron rod (23) is fixedly arranged at the output end of the motor (22); a hydraulic rod (24) is fixedly arranged at one end of the iron rod (23); and the fixing frame (31) is fixedly arranged at the output end of the hydraulic rod (24).

3. The automobile parts production fixture according to claim 2, characterized in that: An electromagnet (25) is fixedly provided on the top of the fixing seat (21), and the top of the electromagnet (25) is in contact with the outer wall of the iron rod (23). Rollers (28) are rotatably provided on the tops of the vertical rods on both sides of the top of the processing table (1), and the tops of the rollers (28) are in contact with the outer wall of the hydraulic rod (24).

4. The automobile parts production fixture according to claim 1, characterized in that: Two symmetrically distributed and inclined oblique sleeves (32) are fixedly provided at an edge of one side of the fixed frame (31) away from the driving assembly (2); the first square rod (33) is slidably arranged in the oblique sleeves (32); a connecting rod (35) is rotatably provided on the outer wall of one end of each of the two first square rods (33); a cylinder (36) is fixedly provided in the fixed frame (31); one end of the two connecting rods (35) is rotatably connected to an output end of the cylinder (36); the output end of the cylinder (36) is located between the two clamping plates (34); and a first anti-slip rubber pad (37) is fixedly provided on the opposite side of one end of each of the two clamping plates (34) close to the supporting assembly (5).

5. The automobile parts production fixture according to claim 1, characterized in that: The two adjacent chain plates (44) are rotatably arranged on the opposite sides of the two clamping plates (34), and a second anti-slip rubber pad (45) is fixedly arranged between a side of the chain plate (44) away from the second square rod (43) and a side of the clamping plate (34) close to the support assembly (5).

6. The automobile parts production fixture according to claim 1, characterized in that: A first return spring (42) is fixedly disposed inside the fixed sleeve rod (41), and one end of the first return spring (42) is fixedly connected to the sliding end of the second square rod (43).

7. The automobile parts production fixture according to claim 1, characterized in that: The support assembly (5) comprises a hydraulic cylinder (51) fixedly arranged at the top center of the processing table (1), and a support plate (52) is rotatably provided at the top of the output end of the hydraulic cylinder (51).

8. The automobile parts production fixture according to claim 2, characterized in that: Two collecting grooves (6) are symmetrically distributed with the support assembly (5) as the center at the middle of the top surface of the processing table (1), and two groups of second return springs (62) are symmetrically distributed and fixedly provided on the inner wall of the collecting groove (6), and an inclined filter plate (61) is fixedly provided between the top ends of the two groups of second return springs (62), and the outer wall of the filter plate (61) is in contact with the inner wall of the collecting groove (6).

9. The automobile parts production fixture according to claim 8, characterized in that: A rubber block (63) is fixedly provided on one side of the top of the collecting tank (6), and the top of the rubber block (63) is in contact with the top of the filter plate (61).

10. The automobile parts production fixture according to claim 9, characterized in that: A winding wheel (26) is fixedly provided on the outer wall of the iron rod (23), a connecting rope (27) is movably wound around the outer wall of the winding wheel (26), and the bottom end of the connecting rope (27) passes through the processing table (1) and is fixedly provided in the middle of the bottom surface of the filter plate (61).

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