Positioning machining clamp

Abstract

The invention belongs to the technical field of clamps, and particularly relates to a positioning machining clamp which comprises a mother plate and a retaining plate, round holes are formed in the mother plate and the retaining plate, the round holes of the retaining plate are used for containing machined parts, and the positioning machining clamp further comprises a pressing plate used for pressing the mother plate and the retaining plate. The pressing plate is mounted on the upper surface of the retaining plate; the fixed column is arranged on the pressing plate and the mother plate; due to the fact that the round hole position where the machined part needs to be machined is formed in the mother board, when double-face punching machining is conducted on the machined part, tool interference cannot be generated, meanwhile, the machined part does not need to be taken down and then installed, and use is convenient.

Description

Technical Field

[0001] The invention belongs to the field of fixtures, in particular to a positioning processing fixture. Background Art

[0002] The air suspension system can automatically adjust the hardness of the suspension according to the road conditions and driving requirements. It consists of an air supply system, an electronic control unit, a double-cavity air spring and an electronically controlled shock absorber. It mainly uses the double-cavity air spring to adjust the air in the additional air chamber through the solenoid valve according to the road excitation, thereby automatically adjusting the height of the vehicle body. The base, armature and tether can form an adaptive structure, which is located in the additional air chamber of the double-cavity air spring to control the closing of the solenoid valve. The base adopts a hollow structure, and the internal cavity is composed of multiple rings of different diameters. During the processing, the base can be clamped with a fixture first, and then processed with a grinding machine.

[0003] When double-sided drilling is performed on the base, in the prior art, after the base is clamped by a clamp, after drilling is completed on one side of the base, the base needs to be loosened and turned over, and the base is clamped again by the clamp before the holes on the other side are processed by a grinding machine, which is inconvenient to use.

[0004] To this end, the present invention provides a positioning processing fixture. Summary of the invention

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a positioning processing fixture described in the present invention includes a motherboard and a retaining plate, and circular holes are opened on the motherboard and the retaining plate, and the circular holes of the retaining plate are used to place the workpiece, and also includes: a pressing plate for pressing the motherboard and the retaining plate, and the pressing plate is installed on the upper surface of the retaining plate; a fixing column installed on the pressing plate and the motherboard.

[0007] Preferably, both the motherboard and the retaining plate contain a plurality of circular holes, and after the retaining plate is mounted on the motherboard, the plurality of circular holes on the two plates can be aligned simultaneously.

[0008] Preferably, it also includes: a wiping assembly installed on the retaining plate, the wiping assembly is used to wipe the position on the mother board that contacts the retaining plate, the wiping assembly includes: four rotating rods that are rotatable and symmetrically installed on both sides of the retaining plate; a push plate installed between two symmetrical rotating rods that are respectively located on both sides of the retaining plate, and the push plate is rotatably connected to the rotating rod.

[0009] Preferably, it also includes: a collecting groove provided on the motherboard; a leakage hole provided on the motherboard, through which debris enters the collecting groove; and an air suction device installed in the collecting groove.

[0010] Preferably, the wiping assembly further comprises: a wiping block slidably mounted on the push plate, the wiping block being used to wipe the side of the push plate in contact with the processing debris; and a No. 1 threaded rod for driving the wiping block to move, the No. 1 threaded rod being rotatably mounted on the push plate.

[0011] Preferably, the wiping assembly also includes: a ratchet with a fixed plate installed on the No. 1 threaded rod; a check block for limiting the unidirectional rotation of the ratchet, the check block being slidably connected to the push plate; a slider installed on the push plate for sliding up and down, the slider being located within the moving range of the rotating rod, a telescopic rod being rotatably installed on the slider, the other end of the telescopic rod being rotatably connected to the check block, the slider sliding through the telescopic rod drives the check block to move; a No. 1 torsion spring installed between the No. 1 threaded rod and the rotating rod; a No. 1 spring installed between the slider and the push plate.

[0012] Preferably, it also includes: a plurality of positioning holes opened on the motherboard and the retaining plate, through which the motherboard and the retaining plate are positioned and fixed; a plurality of nozzles fixedly installed on the push plate, both sides of the nozzles can spray, and the nozzles are used to spray and clean the positioning holes on the motherboard and the retaining plate.

[0013] Preferably, it also includes: a support rod detachably mounted on the motherboard; a mounting box slidably mounted on the support rod; and an air bag mounted on the mounting box, wherein the air bag is used to supply air to the nozzle.

[0014] Preferably, the wiping assembly further comprises: a positioning groove provided on the motherboard; and an insert block fixedly mounted on the bottom end of the push plate, wherein the push plate is slidably connected to the positioning groove via the insert block.

[0015] Preferably, it also includes: a ventilation channel opened on the motherboard, the two ends of the ventilation channel are respectively connected to the airbag and the positioning groove, the outlet of the ventilation channel and the positioning hole are on the same line; a blocking block slidably installed on the positioning groove, the blocking block is used to block the ventilation channel, the side wall of the plug block is an inclined surface, the plug block can push the blocking block downward through the inclined surface when moving, and the plug block is connected to the nozzle; a No. 2 spring installed on the blocking block; a pressure plate slidably installed on the installation box; a No. 2 threaded rod driving the pressure plate to move, the No. 2 threaded rod is rotatably connected to the installation box, and a No. 2 torsion spring is installed between the No. 2 threaded rod and the installation box.

[0016] The beneficial effects of the present invention are as follows: 1. The positioning processing fixture described in the present invention opens a circular hole position where the workpiece needs to be processed on the motherboard, so there will be no tool interference when the workpiece is processed on both sides. At the same time, there is no need to remove the workpiece and then install it, which is easy to use.

[0017] 2. The positioning processing fixture described in the present invention can automatically clean the debris on the motherboard and the retaining plate at the fitting position when the motherboard and the retaining plate are installed by setting a push plate, thereby ensuring the installation effect of the motherboard and the retaining plate.

[0018] 3. The positioning processing fixture described in the present invention is equipped with a nozzle. When the push plate cleans the debris at the fitting position of the motherboard and the retaining plate, it cooperates with the air bag to automatically blow air into the positioning holes on the motherboard and the retaining plate to blow away the debris in the positioning holes, thereby facilitating the installation of the motherboard and the retaining plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a three-dimensional diagram of the first embodiment of the present invention; Figure 2 is a cross-sectional view of a workpiece of the present invention; Figure 3 is a stereogram of a second embodiment of the present invention; Figure 4 It is a structural schematic diagram of the wiping component of the present invention Figure 5 It is a structural schematic diagram of the rotating rod and the push plate of the present invention; Figure 6 It is a structural schematic diagram of the nozzle of the present invention; Figure 7 It is a structural schematic diagram of the plug block of the present invention; Figure 8 is a partial horizontal cross-sectional view of the motherboard of the present invention; Fig. 9 It is a schematic diagram of the structure of the air bag and the pressure plate of the present invention; Fig.10 A cross-sectional view of a motherboard of the present invention; In the figure: 1. motherboard; 2. retaining plate; 3. round hole; 4. pressure plate; 5. fixing column; 6. wiping assembly; 61. rotating rod; 62. pushing plate; 63. wiping block; 64. No. 1 threaded rod; 65. ratchet; 66. check block; 67. slider; 68. telescopic rod; 69. No. 1 torsion spring; 610. No. 1 spring; 611. positioning groove; 612. plug block; 7. collecting groove; 8. leakage hole; 9. suction device; 10. positioning hole; 11. nozzle; 12. support rod; 13. installation box; 14. air bag; 15. ventilation channel; 16. blocking block; 17. No. 2 spring; 18. pressure plate; 19. No. 2 threaded rod. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Embodiment 1

[0022] like Figure 1-Figure 2 As shown, a positioning processing fixture described in an embodiment of the present invention includes a motherboard 1 and a retaining plate 2, and circular holes 3 are opened on the motherboard 1 and the retaining plate 2, and the circular holes 3 of the retaining plate 2 are used to place the processing workpiece, and also includes: a pressing plate 4 for pressing the motherboard 1 and the retaining plate 2, and the pressing plate 4 is installed on the upper surface of the retaining plate 2; a fixing column 5 installed on the pressing plate 4 and the motherboard 1.

[0023] Specifically, after the existing clamp clamps the base, after drilling a hole on one side of the base is completed, the base needs to be loosened, the base is turned over, and the clamp is clamped again before the hole on the other side is processed by the grinding machine, which is more troublesome to use. When using the present positioning processing fixture to perform double-sided processing on the base workpiece to be processed, a retaining spring can be first placed in the circular hole 3 of the retaining plate 2. Before processing, the motherboard 1 and the retaining plate 2 are aligned and installed so that the axes of the circular holes 3 on the motherboard 1 and the retaining plate 2 are consistent, and then the workpiece is inserted into the circular hole 3 of the retaining plate 2, and the workpiece is fixed on the retaining plate 2 by the retaining spring. The pressing plate 4 is installed on the retaining plate 2, and then fixed by the fixing column 5, so that the retaining plate 2 and the mother plate 1 can be pressed tightly, that is, the clamping of the workpiece is completed. The mother plate 1 is installed on the mechanical arm of the grinding device, and the grinding device can punch a hole in the center of the workpiece. After processing one side of the workpiece, the mechanical arm can be controlled to drive the mother plate 1 and the workpiece to flip, and then the other side of the workpiece can be punched. Since the mother plate 1 is provided with a position where the workpiece needs to be processed, that is, a circular hole 3, there will be no tool interference when the workpiece is processed. At the same time, there is no need to remove the workpiece and then install it, which is convenient to use.

[0024] like Figure 1 and Figure 2As shown, both the motherboard 1 and the retaining plate 2 contain a plurality of circular holes 3. After the retaining plate 2 is mounted on the motherboard 1, the plurality of circular holes 3 on both can be aligned at the same time.

[0025] Specifically, by providing a plurality of circular holes 3, it is convenient to process a plurality of workpieces at one time, and the use is convenient. Embodiment 2

[0026] like Figure 3 and Figure 5 As shown in Comparative Example 1, another embodiment of the present invention is: It also includes: a wiping assembly 6 installed on the retaining plate 2, the wiping assembly 6 is used to wipe the position on the motherboard 1 that contacts the retaining plate 2, the wiping assembly 6 includes: four rotating rods 61 that are rotatably and symmetrically installed on both sides of the retaining plate 2; a push plate 62 installed between two symmetrical rotating rods 61 that are respectively located on both sides of the retaining plate, and the push plate 62 is rotatably connected to the rotating rods 61.

[0027] Specifically, since the fixture is used in conjunction with the grinding device, the motherboard 1 will contain processing debris. In the initial state, the rotating rod 61 is vertically downward under the action of gravity. When installing the motherboard 1 and the holding plate 2, the holding plate 2 is now placed above the motherboard 1 so that the motherboard 1 is aligned with the holding plate 2, and then the holding plate 2 is moved downward so that the motherboard 1 and the holding plate 2 are attached. During the attachment process, the push plate 62 on the holding plate 2 first contacts the surface of the motherboard 1, and the holding plate 2 continues to move downward, and the rotating rod 61 rotates, so that the two push plates 62 move away from each other. The push plate 62 moves in the direction of rotation, and the push plate 62 can push the debris on the motherboard 1 at the position where the holding plate 2 fits to the left and right sides during the movement, until the motherboard 1 and the holding plate 2 fit together. At this time, the rotating rod 61 is in a horizontal state, and the push plates 62 are located on both sides of the holding plate 2. The debris on the motherboard 1 at the position where the holding plate 2 fits together is pushed to both sides of the holding plate 2; by providing the push plates 62, when the motherboard 1 and the holding plate 2 are installed, the debris on the motherboard 1 at the position where the holding plate 2 fits together can be automatically cleaned, thereby ensuring the installation effect of the motherboard 1 and the holding plate 2.

[0028] like Figure 4 and Figure 8 As shown, it also includes: a collecting groove 7 opened on the motherboard 1; a leakage hole 8 opened on the motherboard 1, and debris enters the collecting groove 7 through the leakage hole 8; and an air suction device 9 installed in the collecting groove 7.

[0029] Specifically, the suction device 9 can adopt a micro suction pump. By setting the collection tank 7 and the suction device 9, the debris pushed to the two sides of the retaining plate 2 can be collected. There is no need to control other devices to process the debris, which is easy to use.

[0030] like Figure 4 , Figure 5 and Figure 6 As shown, the wiping assembly 6 also includes: a wiping block 63 slidably mounted on the push plate 62, the wiping block 63 is used to wipe the side of the push plate 62 that contacts the processing debris; a No. 1 threaded rod 64 for driving the wiping block 63 to move, the No. 1 threaded rod 64 is rotatably mounted on the push plate 62.

[0031] Specifically, after the holding plate 2 is fitted with the motherboard 1, the No. 1 threaded rod 64 is controlled to rotate so that the wiping block 63 slides back and forth on the surface of the push plate 62, so that the debris is scraped by the wiping plate to the leak hole 8 and sucked away by the suction device 9. At the same time, the side of the push plate 62 that contacts the debris is scraped to scrape off the debris attached to the surface and pushed to the leak hole 8 to be sucked away, thereby avoiding the problem of residual debris on the surface.

[0032] like Figure 4 , Figure 6 and Figure 7 As shown, the wiping assembly 6 also includes: a ratchet 65 with a fixed plate installed on the No. 1 threaded rod 64; a check block 66 for limiting the unidirectional rotation of the ratchet 65, the check block 66 being slidably connected to the push plate 62; a slider 67 installed on the push plate 62 for sliding up and down movement, the slider 67 being located within the moving range of the rotating rod 61, a telescopic rod 68 being rotatably installed on the slider 67, the other end of the telescopic rod 68 being rotatably connected to the check block 66, the slider 67 sliding through the telescopic rod 68 to drive the check block 66 to move; a No. 1 torsion spring 69 installed between the No. 1 threaded rod 64 and the rotating rod 61; a No. 1 spring 610 installed between the slider 67 and the push plate 62.

[0033] Specifically, the check block 66 adopts a telescopic structure. When the push plate 62 moves on the surface of the motherboard 1, the rotating rod 61 rotates relative to the push plate 62. The check block 66 restricts the No. 1 threaded rod 64 from rotating together with the rotating rod 61. Therefore, the No. 1 torsion spring 69 is twisted. During the rotation of the rotating rod 61, the slider 67 can be pushed to move downward, so that the No. 1 spring 610 is compressed. The slider 67 moves downward to make the telescopic rod 68 extend and rotate. When the rotating rod 61 is about to rotate to a horizontal state, the telescopic rod 68 cannot be retracted and the check block 66 is pulled. The return block 66 moves in the direction away from the ratchet 65. When the rotating rod 61 is in a horizontal state, the check block 66 does not contact the ratchet 65. Therefore, the ratchet 65 and the No. 1 threaded rod 64 can rotate under the elastic force of the No. 1 torsion spring 69, so that the slider 67 moves back and forth. After the rotating rod 61 keeps the plate 2 separated from the motherboard 1, the rotating rod 61 rotates to a vertical state, and the slider 67 returns to its initial position under the elastic force of the No. 1 spring 610. The slider 67 can push the check block 66 to engage with the ratchet 65 again through the telescopic rod 68.

[0034] like Figure 4 and Figure 6 As shown, it also includes: a plurality of positioning holes 10 opened on the motherboard 1 and the retaining plate 2, and the motherboard 1 and the retaining plate 2 are positioned and fixed by the positioning holes 10; a plurality of nozzles 11 fixedly installed on the push plate 62, and both sides of the nozzles 11 can spray air, and the nozzles 11 are used to spray and clean the positioning holes 10 on the motherboard 1 and the retaining plate 2.

[0035] Specifically, before use, the nozzle 11 is connected to the blowing device. When the push plate 62 slides on the surface of the motherboard 1, when the nozzle 11 is located at the positioning hole 10, the blowing device is controlled to supply air to the nozzle 11. The upper and lower surfaces of the nozzle 11 blow out air to blow air into the positioning hole 10 to blow away the debris in the positioning hole 10, which is convenient for the installation of the motherboard 1 and the retaining plate 2. Since the size of the positioning hole 10 is small and difficult to clean, the method of blowing away the debris by the nozzle 11 jet is simple and convenient to use.

[0036] like Figure 4 and Fig. 9 As shown, it also includes: a support rod 12 detachably mounted on the motherboard 1; a mounting box 13 slidably mounted on the support rod 12; and an air bag 14 mounted on the mounting box 13, wherein the air bag 14 is used to supply air to the nozzle 11.

[0037] Specifically, before use, the support rod 12 and the installation box 13 can be installed on the motherboard 1, and the airbag 14 can be connected to the nozzle 11. During installation, the airbag 14 is pressed to spray the air in the airbag 14 from the nozzle 11 to achieve the action of cleaning the debris of the positioning hole 10. The structure is simple and the price is low.

[0038] like Figure 7 and Figure 8 As shown, the wiping assembly 6 further includes: a positioning groove 611 provided on the motherboard 1 ; and an insert block 612 fixedly mounted on the bottom end of the push plate 62 , wherein the push plate 62 is slidably connected to the positioning groove 611 via the insert block 612 .

[0039] Specifically, before installation, the insert block 612 at the bottom end of the push plate 62 is first inserted into the positioning groove 611, and then the retaining plate 2 is pressed down. There is no need to align in advance, which is convenient to use.

[0040] like Figure 7-Figure 10As shown, it also includes: a ventilation channel 15 opened on the motherboard 1, the two ends of the ventilation channel 15 are respectively connected to the airbag 14 and the positioning groove 611, and the outlet of the ventilation channel 15 is on the same line as the positioning hole 10; a block 16 slidably installed on the positioning groove 611, the block 16 is used to block the ventilation channel 15, the side wall of the plug 612 is an inclined surface, and the plug 612 can push the block 16 to move downward through the inclined surface when moving, and the plug 612 is connected to the nozzle 11; a No. 2 spring 17 installed on the block 16; a pressure plate 18 slidably installed on the installation box 13; a No. 2 threaded rod 19 that drives the pressure plate 18 to move, the No. 2 threaded rod 19 is rotatably connected to the installation box 13, and a No. 2 torsion spring is installed between the No. 2 threaded rod 19 and the installation box 13.

[0041] Specifically, the airbag 14 is located outside the installation box 13 and is provided with a one-way ventilation valve, so that air can only enter the airbag 14 from the outside. Before use, the No. 2 threaded rod 19 is controlled to rotate so that the pressure plate 18 slides to one end of the installation box 13. At this time, the airbag 14 swells, and the external air is sucked into the inside of the airbag 14. The No. 2 torsion spring is twisted. Since the outlet of the ventilation channel 15 is blocked by the block 16, the air in the airbag 14 cannot be discharged. The No. 2 threaded rod 19 has a tendency to rotate under the action of the elastic force of the No. 2 torsion spring, that is, the pressure plate 18 has a tendency to squeeze the airbag 14. When the nozzle 11 on the push plate 62 moves to the positioning hole 10, the plug 612 contacts the block 16 and pushes the block 16 to The air in the airbag 14 can be discharged from the nozzle 11, and the nozzle 11 sprays air to clean the positioning hole 10. After the nozzle 11 on the push plate 62 passes through the positioning hole 10, the plug 612 and the block 16 are not in contact. The block 16 moves upward under the action of the elastic force of the No. 2 spring 17 and blocks the air channel 15 again. There is no need to control the airbag 14 to blow air when the push plate 62 drives the nozzle 11 to move. During the movement of the push plate 62, the nozzle 11 can automatically spray air at the positioning hole 10, which is convenient to use.

[0042] Working principle: Before use, control the No. 2 threaded rod 19 to rotate so that the pressure plate 18 slides to one end of the installation box 13. At this time, the airbag 14 swells, and the external air is sucked into the airbag 14. The No. 2 torsion spring twists. Since the outlet of the ventilation channel 15 is blocked by the block 16, the air in the airbag 14 cannot be discharged. The No. 2 threaded rod 19 has a tendency to rotate under the action of the elastic force of the No. 2 torsion spring, that is, the pressure plate 18 has a tendency to squeeze the airbag 14. Insert the plug 612 at the bottom of the push plate 62 into the positioning groove 611, and then press down the retaining plate 2 to make the rotating rod 61 rotate. The push plates 62 move in the direction away from each other. During the movement, the push plates 62 can push the debris on the motherboard 1 at the position where the holding plate 2 is attached to the left and right sides until the motherboard 1 is attached to the holding plate 2. When the nozzle 11 on the push plate 62 moves to the positioning hole 10, the plug 612 contacts the block 16 and pushes the block 16 to move downward. At this time, the second spring 17 is compressed. After the block 16 moves downward, the ventilation channel 15 is connected with the plug 612 and the nozzle 11, so the pressure plate 18 can move, so that the airbag 14 is squeezed, and the air in the airbag 14 can be discharged from the nozzle 11, and the nozzle 11 sprays The positioning hole 10 is cleaned. After the nozzle 11 on the push plate 62 passes through the positioning hole 10, the plug block 612 is not in contact with the blocking block 16. The blocking block 16 moves upward under the elastic force of the second spring 17 and blocks the ventilation channel 15 again. When the motherboard 1 is in contact with the retaining plate 2, the rotating rod 61 is in a horizontal state, and the push plate 62 is located on both sides of the retaining plate 2. The debris on the motherboard 1 at the position where the retaining plate 2 is in contact is pushed to both sides of the retaining plate 2. The first threaded rod 64 is controlled to rotate, so that the wiper block 63 slides back and forth on the surface of the push plate 62, so that the debris is scraped by the wiper plate to the leak hole 8 and sucked away by the suction device 9. Then, insert the positioning pin into the positioning hole 10, perform preliminary installation of the motherboard 1 and the holding plate 2, and then insert the workpiece into the circular hole 3 of the holding plate 2, fix the workpiece on the holding plate 2 by the retaining spring, and then install the pressing plate 4 on the holding plate 2, and then fix it by the fixing column 5, so that the holding plate 2 and the motherboard 1 can be pressed tightly, and the clamping of the workpiece is completed. The motherboard 1 is installed on the mechanical arm of the grinding device, and the grinding device can punch a hole in the center of the workpiece. After processing one side of the workpiece, the mechanical arm can be controlled to drive the motherboard 1 and the workpiece to flip, so as to punch a hole on the other side of the workpiece.

[0043] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A positioning processing fixture, comprising a motherboard (1) and a holding plate (2), wherein the motherboard (1) and the holding plate (2) are provided with circular holes (3), and the circular holes (3) of the holding plate (2) are used to place a processing workpiece, characterized in that: Also includes: A pressing plate (4) for pressing the motherboard (1) and the retaining plate (2), the pressing plate (4) being mounted on the upper surface of the retaining plate (2); A fixing column (5) is mounted on the pressing plate (4) and the mother plate (1), and the fixing column (5) is used to support the workpiece.

2. A positioning processing fixture according to claim 1, characterized in that: The motherboard (1) and the retaining plate (2) both contain a plurality of circular holes (3); after the retaining plate (2) is mounted on the motherboard (1), the plurality of circular holes (3) on the two can be aligned simultaneously.

3. A positioning processing fixture according to claim 2, characterized in that: Also includes: A wiping assembly (6) mounted on the retaining plate (2), the wiping assembly (6) being used to wipe a position on the motherboard (1) in contact with the retaining plate (2), the wiping assembly (6) comprising: Four rotating rods (61) rotatably and symmetrically mounted on both sides of the retaining plate (2); A push plate (62) is installed between two rotating rods (61) respectively located on two sides and maintained symmetrically, and the push plate (62) is rotatably connected to the rotating rod (61).

4. A positioning processing fixture according to claim 3, characterized in that: Also includes: A collecting groove (7) provided on the motherboard (1); A leakage hole (8) is provided on the motherboard (1), and debris enters the collecting tank (7) through the leakage hole (8); An air suction device (9) installed in the collecting tank (7).

5. A positioning processing fixture according to claim 4, characterized in that: The wiping assembly (6) further comprises: a wiping block (63) slidably mounted on the push plate (62), the wiping block (63) being used to wipe a side of the push plate (62) in contact with machining debris; A No. 1 threaded rod (64) for driving the wiper block (63) to move, wherein the No. 1 threaded rod (64) is rotatably mounted on the push plate (62).

6. A positioning processing fixture according to claim 5, characterized in that: The wiping assembly (6) further comprises: The fixing plate is mounted on a ratchet wheel (65) on the first threaded rod (64); a check block (66) for limiting the one-way rotation of the ratchet wheel (65), the check block (66) being slidably connected to the push plate (62); A slider (67) is mounted on the push plate (62) for sliding up and down movement, the slider (67) is located within the moving range of the rotating rod (61), a telescopic rod (68) is rotatably mounted on the slider (67), the other end of the telescopic rod (68) is rotatably connected to the check block (66), and the slider (67) slides through the telescopic rod (68) to drive the check block (66) to move; A first torsion spring (69) installed between the first threaded rod (64) and the rotating rod (61); A spring (610) is installed between the slider (67) and the push plate (62).

7. A positioning processing fixture according to claim 6, characterized in that: Also includes: a plurality of positioning holes (10) formed on the motherboard (1) and the retaining plate (2), wherein the motherboard (1) and the retaining plate (2) are positioned and fixed via the positioning holes (10); A plurality of nozzles (11) are fixedly mounted on the push plate (62), and both sides of the nozzles (11) are capable of spraying air. The nozzles (11) are used to spray and clean the positioning holes (10) on the motherboard (1) and the retaining plate (2).

8. A positioning processing fixture according to claim 7, characterized in that: Also includes: A support rod (12) detachably mounted on the motherboard (1); A mounting box (13) slidably mounted on the support rod (12); An air bag (14) mounted on the mounting box (13), the air bag (14) being used to supply air to the spray head (11).

9. A positioning processing fixture according to claim 8, characterized in that: The wiping assembly (6) further comprises: A positioning groove (611) formed on the motherboard (1); An insert block (612) is fixedly mounted on the bottom end of the push plate (62), and the push plate (62) is slidably connected to the positioning groove (611) via the insert block (612).

10. A positioning processing fixture according to claim 9, characterized in that: Also includes: A ventilation channel (15) is provided on the motherboard (1), wherein two ends of the ventilation channel (15) are respectively connected to the airbag (14) and the positioning groove (611), and an outlet of the ventilation channel (15) is on the same line as the positioning hole (10); a blocking block (16) slidably mounted on the positioning groove (611) up and down, the blocking block (16) being used to block the ventilation channel (15), the side wall of the insert block (612) being an inclined surface, the insert block (612) being able to push the blocking block (16) downwards via the inclined surface when moving, the insert block (612) being in communication with the nozzle (11); A second spring (17) mounted on the blocking block (16); A pressure plate (18) slidably mounted on the mounting box (13); A No. 2 threaded rod (19) drives the pressure plate (18) to move, the No. 2 threaded rod (19) is rotatably connected to the installation box (13), and a No. 2 torsion spring is installed between the No. 2 threaded rod (19) and the installation box (13).

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