Air washing device and cleaning method of a grooved flat jig

Abstract

This patent relates to the technical field of quartz crystal resonator manufacturing, specifically a wind washing device and cleaning method for a grooved flat jig, including an X-axis moving part, a wind washing component, and a chain transmission component. The wind washing component is installed on the X-axis moving part, and the chain transmission component is located directly below the X-axis moving part. The wind washing component includes a Y-axis moving part, an air inlet joint, a negative pressure suction port, a number of connecting pipes, a number of connecting hoses, a number of jet nozzles, a number of connecting rods, and a lifting mechanism. The air inlet joint and the negative pressure suction port are both installed on the Y-axis moving part. The lifting mechanism is located among a number of jet nozzles. One end of a number of connecting rods is hinged to the lifting mechanism, and the other ends of a number of connecting rods are respectively hinged to a number of jet nozzles. This solution uses wind washing to quickly complete the cleaning of the jig, avoiding waste of water resources and saving cleaning time at the same time.

Description

Technical Field

[0001] The present invention relates to the technical field of quartz crystal resonator manufacturing, and specifically to a wind washing device and a cleaning method for a grooved flat jig. Background Art

[0002] With the deepening of product miniaturization, the cleanliness requirements for the cleanroom environment are getting higher and higher, especially for the cleanliness of the surface of the jigs for loading products. The traditional water washing method requires ultrasonic water vibration washing and long-term baking in an oven, which is time-consuming and wastes water resources. Summary of the Invention

[0003] The present invention aims to provide a wind washing device and a cleaning method for a grooved flat jig to solve the problems of time-consuming and water resource waste of the traditional water washing method.

[0004] To achieve the above object, the basic solution of the present invention is as follows: A wind washing device for a grooved flat jig includes an X-axis moving member, a wind washing component, and a chain transmission component. The wind washing component is installed on the X-axis moving member, and the chain transmission component is located directly below the X-axis moving member. The wind washing component includes a Y-axis moving member, an air inlet joint, a negative pressure suction port, a plurality of connecting pipes, a plurality of connecting hoses, a plurality of jet nozzles, a plurality of connecting rods, and a lifting mechanism. The Y-axis moving member is installed on the X-axis moving member, the air inlet joint and the negative pressure suction port are both installed on the Y-axis moving member, a plurality of the connecting pipes are all connected to the air inlet joint, a plurality of the connecting hoses are respectively connected to a plurality of the connecting pipes, a plurality of the jet nozzles are respectively connected to a plurality of the connecting hoses, the lifting mechanism is located among a plurality of the jet nozzles, one ends of a plurality of the connecting rods are hinged to the lifting mechanism, and the other ends of a plurality of the connecting rods are respectively hinged to a plurality of the jet nozzles.

[0005] Further, it further includes an ultrasonic vibration washing component, which includes a vibration washing tank and an ultrasonic vibrator. The ultrasonic vibrator is installed in the vibration washing tank, and the vibration washing tank is located directly below the chain transmission component. The chain transmission component includes a bracket, a chain, three pulleys, a support frame, and a plurality of rollers. The support frame is fixed on the bracket, a plurality of the rollers are rotatably connected to the support frame, the three pulleys are distributed in a triangle, two of the pulleys are located at both ends of the support frame, and one of the pulleys is located below the support frame. The chain is wound around the outside of the three pulleys and a plurality of the rollers.

[0006] Further, it further includes a vision component, which includes a connection block, a CCD camera, and an annular light source. The connection block is installed on the X-axis moving member, the CCD camera is installed below the connection block, and the annular light source is installed outside the lens of the CCD camera.

[0007] Further, it further includes a height measurement component, and the height measurement component includes a mounting rod, a mounting block, a sensor support rod, a contact sensor, and a sensor sensing rod. The top end of the mounting rod is mounted on the X-axis moving member, the bottom end of the mounting rod is fixed to the mounting block, the sensor support rod is fixed to the side of the mounting block, the contact sensor is mounted at the bottom of the sensor support rod, a slot is formed in the lower part of the mounting block, the sensor sensing rod is T-shaped, the sensor sensing rod is vertically slidably connected to the bottom of the mounting block, and the upper end of the sensor sensing rod can abut against the contact sensor. The chain transmission component further includes a lifting motor, and the support frame of the chain transmission component is fixedly connected to the output shaft of the lifting motor.

[0008] Further, the chain transmission component further includes two clamping mechanisms, and each clamping mechanism includes a clamping block, a clamping cylinder, and a transverse moving member. The transverse moving members of the two clamping mechanisms are respectively fixed to both sides of the support frame, the clamping cylinder is mounted on the transverse moving member, and the clamping block is mounted on the output shaft of the clamping cylinder.

[0009] Further, the lifting mechanism includes a wind washing motor, a lead screw, and a nut. The lead screw is fixedly connected to the output shaft of the wind washing motor, the nut is threadedly connected to the lead screw, one ends of a plurality of connecting rods are hinged to the outside of the nut, and the other ends of the plurality of connecting rods are respectively hinged to a plurality of air nozzles.

[0010] Further, the bracket includes a portal frame, a support rod, and two telescopic shafts. The telescopic shafts are both fixedly mounted on the portal frame, the support frame is fixed to the two telescopic shafts, the top of the support rod is fixed to the support frame, the bottom of the support rod is rotatably connected to a pulley located below the support frame, the lifting motor is fixed to the portal frame, and the output shaft of the lifting motor is fixed to the support rod.

[0011] Further, it further includes a mounting frame and an air knife. The mounting frame is fixed to the portal frame, the air knife is mounted on the mounting frame, and the air knife is located on the side of the chain above the vibration washing tank.

[0012] A cleaning method for a grooved flat fixture uses a wind washing device for the grooved flat fixture for cleaning, and includes the following steps:

[0013] S1: Benchmark height measurement: The X-axis moving part drives the height measurement component to move above the chain transmission component. The lifting motor drives the support frame to rise, causing the upper surface of the chain to push up the sensor sensing rod, enabling the contact sensor to sense the sensor sensing rod. When the contact sensor first senses the sensor sensing rod, the lifting motor stops rising. Subsequently, the lifting motor starts to descend and stops descending when the contact sensor no longer senses. This repeated movement is carried out, and each time the lifting motor switches between rising and descending, the motion speed pulse signal is halved until the speed drops to the set value. Then, the above actions are stopped, and the height at which the lifting motor currently lifts is recorded as the reference height of the lifting platform.

[0014] S2: Positioning and clamping: Place the fixture to be cleaned on the chain transmission component. The clamping cylinder moves to the lower position, making the clamping block act as a positioning block. The chain moves to the right, bringing the fixture into alignment with the clamping block. The transverse moving part drives the clamping cylinder on the right to move a certain distance to the right away from the right edge of the fixture. The clamping cylinder moves to the upper position, and the transverse moving part again drives the clamping cylinder on the right to move to the left above the right edge of the fixture. The transverse moving part on the other side drives the clamping cylinder on the left to move to the right above the right edge of the fixture. The clamping cylinders on both sides move to the lower position to fix and clamp the fixture.

[0015] S3: Preliminary detection: The X-axis moving part drives the vision component above the fixture position. The CCD camera performs automatic focusing and takes pictures. The generated images are processed to identify and record the abnormal points.

[0016] S4: Actual height measurement: The X-axis moving part drives the height measurement component to move above the chain transmission component. The lifting motor drives the support frame and the roller to rise, causing the upper surface of the fixture to push up the sensor sensing rod, enabling the contact sensor to sense the sensor sensing rod. When the contact sensor first senses the sensor sensing rod, the lifting motor stops rising. Subsequently, the lifting motor starts to descend and stops descending when the contact sensor no longer senses. This repeated movement is carried out, and each time the lifting motor switches between rising and descending, the motion speed pulse signal is halved until the speed drops to the set value. Then, the above actions are stopped, and the height at which the lifting motor currently lifts is recorded as the measured height of the fixture. The fixture thickness = reference height of the lifting platform - measured height of the fixture.

[0017] S5: Preliminary negative pressure cleaning: The X-axis moving part drives the air washing component to the starting point on the right side of the fixture. The Y-axis moving part drives the air washing component to descend to the innermost starting point of the fixture. The lifting motor raises and lowers according to the actual thickness of the fixture so that the surface of the fixture is 4 mm below the lower side of the air washing component, and the negative pressure suction port opens to start suction. The X-axis moving part and the Y-axis moving part move synchronously to make the air washing component follow the set movement route to cover the entire fixture, completing the preliminary negative pressure suction cleaning to remove the floating dust and foreign objects on the surface.

[0018] S6: Strong air washing: The air washing component returns to the starting position. At this time, both the negative pressure suction port and the jet nozzle are in the working state. The air washing motor drives the screw to rotate, so that the nut moves up and down, driving the connecting rod to move, and then adjusting the angle of the jet nozzle so that the air flow angle can blow to the corner of the fixture groove. The X-axis moving part and the Y-axis moving part move synchronously, making the air washing component complete the entire fixture along the set movement route, completing the strong air washing and removing foreign objects in the fixture groove;

[0019] S7: Secondary negative pressure cleaning: The air washing component returns to the starting position, the jet nozzle is closed, and the negative pressure suction port is opened. The X-axis moving part and the Y-axis moving part move synchronously, making the air washing component complete the entire fixture along the set movement route, completing the secondary negative pressure suction cleaning and removing floating dust and foreign objects on the surface;

[0020] S8: Secondary detection: The X-axis moving part drives the vision component above the fixture position. The CCD camera performs automatic focusing and takes pictures. Through the generated images for processing, comparing with the preliminary detection results to determine the cleaning effect. If the cleaning is not thorough, repeat step S7 or repeat steps S6 and S7. If the cleaning is thorough, proceed to the next step;

[0021] S9: Cleaning completed: The clamping cylinder moves to the upper position. The lateral moving part drives the clamping cylinder away from the fixture, the cleaning is completed, and the fixture is taken away;

[0022] S10: Chain cleaning: After each cleaning of the fixture, the air knife starts and the chain rotates one circle to remove the foreign objects remaining on the chain; After every n times of fixture cleaning, the operation is paused. The lifting motor drives the support rod to descend, making the pulley located below the support frame immerse in the vibration cleaning tank. The ultrasonic oscillator starts and the chain moves slowly to perform ultrasonic cleaning on the chain. The air knife starts to remove the water residue on the surface of the chain.

[0023] Beneficial effects of this solution: (1) This solution uses air washing, which can quickly complete the cleaning of the fixture, avoiding wasting water resources and saving cleaning time at the same time.

[0024] (2) In this solution, the jet nozzle in the air washing component can change the jet direction, so as to accurately clean the fixture groove and make the cleaning more thorough.

[0025] (3) This solution is equipped with a height measurement component, which can measure the height of the fixture.

[0026] (4) This solution can automatically clean the chain, ensure the cleanliness of the chain, and avoid secondary pollution to the fixture. Description of the drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment of the present invention;

[0028] Figure 2 For Figure 1 An enlarged schematic diagram of A in

[0029] Figure 3 This is a specific structural schematic diagram of the air-washing component in the embodiment of the present invention. Specific embodiments

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0031] The reference numerals in the specification drawings include: X-axis moving member 1, vision component 2, height measuring component 3, air-washing component 4, mounting rod 5, mounting block 6, sensor support rod 7, contact sensor 8, sensor sensing rod 9, Y-axis moving member 10, air inlet joint 11, negative pressure suction port 12, connecting pipe 13, connecting hose 14, jet nozzle 15, connecting rod 16, air-washing motor 17, lead screw 18, nut 19, chain 20, pulley 21, support frame 22, roller 23, lifting motor 24, gantry 25, support rod 26, telescopic shaft 27, clamping block 28, clamping cylinder 29, lateral moving member 30, vibration washing tank 31, ultrasonic vibrator 32, water inlet 33, water outlet 34, mounting frame 35, air knife 36.

[0032] Embodiment

[0033] Basically as shown in the attached Figure 1 As shown: An air-washing device for a flat fixture with grooves, including an X-axis moving member 1, a vision component 2, a height measuring component 3, an air-washing component 4, a chain 20 transmission component, and an ultrasonic vibration washing component;

[0034] The vision component 2 includes a connecting block, a CCD camera, and an annular light source. The connecting block is installed on the X-axis moving member 1, the CCD camera is installed below the connecting block, and the annular light source is installed outside the lens of the CCD camera;

[0035] Combined with Figure 2 As shown, the height measuring component 3 includes a mounting rod 5, a mounting block 6, a sensor support rod 7, a contact sensor 8, and a sensor sensing rod 9. The top of the mounting rod 5 is installed on the X-axis moving member 1, the bottom end of the mounting rod 5 is fixed to the mounting block 6, the sensor support rod 7 is fixed to the side of the mounting block 6, the contact sensor 8 is installed at the bottom of the sensor support rod 7, the lower part of the mounting block 6 is grooved, the sensor sensing rod 9 is T-shaped, the sensor sensing rod 9 is vertically slidably connected to the bottom of the mounting block 6, and the upper end of the sensor sensing rod 9 can abut against the contact sensor 8;

[0036] Combined Figure 3 As shown, the air-washing assembly 4 is installed on the X-axis moving part 1, and the chain 20 transmission assembly is located directly below the X-axis moving part 1. The air-washing assembly 4 includes a Y-axis moving part 10, an air inlet joint 11, a negative pressure suction port 12, a plurality of connecting pipes 13, a plurality of connecting hoses 14, a plurality of jet nozzles 15, a plurality of connecting rods 16 and a lifting mechanism. The Y-axis moving part 10 is installed on the X-axis moving part 1. Both the Y-axis moving part 10 and the X-axis moving part 1 are linear sliders in the horizontal direction. The air inlet joint 11 and the negative pressure suction port 12 are both installed on the Y-axis moving part 10. A plurality of connecting pipes 13 are all connected to the air inlet joint 11. A plurality of connecting hoses 14 are respectively connected to a plurality of connecting pipes 13. A plurality of jet nozzles 15 are respectively connected to a plurality of connecting hoses 14. The lifting mechanism is located among a plurality of jet nozzles 15. One end of a plurality of connecting rods 16 is hinged to the lifting mechanism, and the other end of a plurality of connecting rods 16 is respectively hinged to a plurality of jet nozzles 15. The lifting mechanism includes an air-washing motor 17, a lead screw 18 and a nut 19. The lead screw 18 is fixedly connected to the output shaft of the air-washing motor 17. The nut 19 is threadedly connected to the lead screw 18. One end of a plurality of connecting rods 16 is hinged to the outside of the nut 19, and the other end of a plurality of connecting rods 16 is respectively hinged to a plurality of jet nozzles 15.

[0037] The chain 20 transmission assembly includes a bracket, a chain 20, three pulleys 21, a support frame 22, a plurality of rollers 23, a lifting motor 24 and two groups of clamping mechanisms. The bracket includes a portal frame 25, a support rod 26 and two telescopic shafts 27. The telescopic shafts 27 are both fixedly installed on the portal frame 25. The support frame 22 is fixed on the two telescopic shafts 27. A plurality of rollers 23 are rotatably connected to the support frame 22. The three pulleys 21 are distributed in a triangle. Two of the pulleys 21 are located at both ends of the support frame 22, and one of the pulleys 21 is located below the support frame 22. The chain 20 is wound around the outside of the three pulleys 21 and a plurality of rollers 23. The top of the support rod 26 is fixed to the support frame 22, and the bottom of the support rod 26 is rotatably connected to the pulley 21 located below the support frame 22. The lifting motor 24 is fixed on the portal frame, and the output shaft of the lifting motor 24 is fixedly connected to the support rod 26. The clamping mechanism includes a clamping block 28, a clamping cylinder 29 and a lateral moving part 30. The lateral moving parts 30 of the two groups of clamping mechanisms are respectively fixed on both sides of the support frame 22. The lateral moving part 30 is a linear slider. The clamping cylinder 29 is installed on the lateral moving part 30, and the clamping block 28 is installed on the output shaft of the clamping cylinder 29.

[0038] The ultrasonic vibration-washing assembly includes a vibration-washing tank 31 and ultrasonic vibrators 32. The ultrasonic vibrators 32 are installed in the vibration-washing tank 31. The vibration-washing tank 31 is located directly below the chain 20 transmission assembly. Water inlets 33 and water outlets 34 are respectively arranged on both sides of the vibration-washing tank 31;

[0039] It further includes a mounting bracket 35 and an air knife 36. The mounting bracket 35 is fixed on the gantry, the air knife 36 is mounted on the mounting bracket 35, and the air knife 36 is located on the side of the chain 20 above the vibration washing tank 31.

[0040] The specific implementation process is as follows:

[0041] S1: Bench height measurement: The X-axis moving part 1 drives the height measurement component 3 to move above the chain 20 transmission component. The lifting motor 24 drives the support frame 22 to rise so that the upper end surface of the chain 20 pushes up the sensor induction rod 9, enabling the contact sensor 8 to sense the sensor induction rod 9. When the contact sensor 8 first senses the sensor induction rod 9, the lifting motor 24 stops rising. Subsequently, the lifting motor 24 starts to descend. When the contact sensor 8 has no induction, it stops descending. This movement is repeated. Each time the lifting motor 24 switches between rising and descending, the motion speed pulse signal is halved until the speed drops to the set value. Then, the above actions are stopped, and the height lifted by the lifting motor 24 at this time is recorded as the reference height of the lifting platform.

[0042] S2: Positioning and clamping: Place the fixture to be cleaned on the chain 20 transmission component. The clamping cylinder 29 moves to the lower position, making the clamping block 28 act as a positioning block. The chain 20 moves to the right, causing the fixture to align with the clamping block 28. The transverse moving part 30 drives the clamping cylinder 29 on the right to move a certain distance to the right to disengage from the right edge of the fixture. The clamping cylinder 29 moves to the upper position. The transverse moving part 30 drives the clamping cylinder 29 on the right to move to the left above the right edge of the fixture again. The transverse moving part 30 on the other side drives the clamping cylinder 29 on the left to move to the right above the right edge of the fixture. The clamping cylinders 29 on both sides move to the lower position to firmly clamp the fixture.

[0043] S3: Preliminary detection: The X-axis moving part 1 drives the vision component 2 to move above the fixture. The CCD camera performs automatic focusing and takes pictures. The generated images are processed to identify and record the abnormal points therein.

[0044] S4: Actual height measurement: The X-axis moving part 1 drives the height measurement component 3 to move above the chain 20 transmission component. The lifting motor 24 drives the support frame 22 and the roller 23 to rise so that the upper end surface of the fixture pushes up the sensor induction rod 9, enabling the contact sensor 8 to sense the sensor induction rod 9. When the contact sensor 8 first senses the sensor induction rod 9, the lifting motor 24 stops rising. Subsequently, the lifting motor 24 starts to descend. When the contact sensor 8 has no induction, it stops descending. This movement is repeated. Each time the lifting motor 24 switches between rising and descending, the motion speed pulse signal is halved until the speed drops to the set value. Then, the above actions are stopped, and the height lifted by the lifting motor 24 at this time is recorded as the measured height of the fixture. The thickness of the fixture = the reference height of the lifting platform - the measured height of the fixture.

[0045] S5: Initial negative pressure cleaning: The X-axis moving part 1 drives the air washing component 4 to move to the starting point on the right side of the fixture. The Y-axis moving part 10 drives the air washing component 4 to descend to the innermost starting point of the fixture. The lifting motor 24 raises and lowers according to the actual thickness of the fixture so that the surface of the fixture is 4 mm below the lower side of the air washing component 4. The negative pressure suction port 12 is opened to start suction. The X-axis moving part 1 and the Y-axis moving part 10 move synchronously to make the air washing component 4 complete the entire fixture along the set movement route, completing the initial negative pressure suction cleaning to remove the floating dust and foreign objects on the surface.

[0046] S6: Strong air washing: The air washing component 4 returns to the starting position. At this time, both the negative pressure suction port 12 and the jet nozzle 15 are in the working state. The air washing motor 17 drives the screw to rotate, thereby causing the nut 19 to move up and down, driving the connecting rod 16 to move, and thus adjusting the angle of the jet nozzle 15 so that the air flow angle can blow to the corners of the fixture groove. The X-axis moving part 1 and the Y-axis moving part 10 move synchronously to make the air washing component 4 complete the entire fixture along the set movement route, completing the strong air washing to remove the foreign objects in the fixture groove.

[0047] S7: Secondary negative pressure cleaning: The air washing component 4 returns to the starting position. The jet nozzle 15 is closed, and the negative pressure suction port 12 is opened. The X-axis moving part 1 and the Y-axis moving part 10 move synchronously to make the air washing component 4 complete the entire fixture along the set movement route, completing the secondary negative pressure suction cleaning to remove the floating dust and foreign objects on the surface.

[0048] S8: Secondary detection: The X-axis moving part 1 drives the vision component 2 above the fixture position. The CCD camera performs automatic focusing and takes pictures. Through the generated images for processing, comparing with the initial detection results, the cleaning effect is judged. If the cleaning is not thorough, repeat step S7 or repeat steps S6 and S7. If the cleaning is thorough, proceed to the next step.

[0049] S9: Cleaning completed: The clamping cylinder 29 moves to the upper position, and the transverse moving part 30 drives the clamping cylinder 29 away from the fixture. The cleaning is completed, and the fixture is taken away.

[0050] S10: Chain 20 cleaning: After each cleaning of the fixture, the air knife 36 is started and the chain 20 rotates one circle to remove the foreign objects remaining on the chain 20. After every 400 times of fixture cleaning, the operation is paused. The lifting motor 24 drives the support rod 26 to descend, so that the pulley 21 located below the support frame 22 is immersed in the vibration washing tank 31. The ultrasonic oscillator 32 is started and the chain 20 moves slowly to perform ultrasonic vibration washing on the chain 20. The air knife 36 is started to remove the water residue on the surface of the chain 20.

[0051] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0052] The above are only embodiments of the present invention. Common general knowledge such as the specific structures and characteristics in the solutions is not described in detail herein. Those of ordinary skill in the art know all the common general knowledge in the technical field to which the invention pertains before the filing date or the priority date, are able to know all the prior art in this field, and have the ability to apply conventional experimental means before this date. Those of ordinary skill in the art can, under the inspiration given in this application, complete and implement this solution in combination with their own abilities. Some typical well-known structures or well-known methods should not become an obstacle for those of ordinary skill in the art to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several deformations and improvements can still be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation effect of the present invention and the practicality of the patent. The protection scope required by this application should be based on the content of its claims, and the specific implementation manners described in the specification can be used to interpret the content of the claims.

Claims

1. An air washing device for a grooved flat fixture, characterized in that: It includes an X-axis moving part, a wind washing component and a chain transmission component. The wind washing component is installed on the X-axis moving part. The chain transmission component is located directly below the X-axis moving part. The wind washing component includes a Y-axis moving part, an air inlet joint, a negative pressure suction port, a plurality of connecting pipes, a plurality of connecting hoses, a plurality of jet nozzles, a plurality of connecting rods and a lifting mechanism. The Y-axis moving part is installed on the X-axis moving part. The air inlet joint and the negative pressure suction port are both installed on the Y-axis moving part. A plurality of the connecting pipes are all connected to the air inlet joint. A plurality of the connecting hoses are respectively connected to a plurality of the connecting pipes. A plurality of the jet nozzles are respectively connected to a plurality of the connecting hoses. The lifting mechanism is located among a plurality of the jet nozzles. One ends of a plurality of the connecting rods are hinged to the lifting mechanism, and the other ends of a plurality of the connecting rods are respectively hinged to a plurality of the jet nozzles; It further includes an ultrasonic vibration washing component. The ultrasonic vibration washing component includes a vibration washing tank and an ultrasonic vibrator. The ultrasonic vibrator is installed in the vibration washing tank. The vibration washing tank is located directly below the chain transmission component. The chain transmission component includes a bracket, a chain, three pulleys, a support frame and a plurality of rollers. The support frame is fixed on the bracket. A plurality of the rollers are rotatably connected to the support frame. The three pulleys are distributed in a triangle. Two of the pulleys are located at both ends of the support frame, and one of the pulleys is located below the support frame. The chain is wound around the outside of the three pulleys and a plurality of rollers; It further includes a height measurement component. The height measurement component includes a mounting rod, a mounting block, a sensor support rod, a contact sensor and a sensor sensing rod. The top end of the mounting rod is installed on the X-axis moving part. The bottom end of the mounting rod is fixed to the mounting block. The sensor support rod is fixed to the side of the mounting block. The contact sensor is installed at the bottom of the sensor support rod. A groove is formed in the lower part of the mounting block. The sensor sensing rod is T-shaped. The sensor sensing rod is vertically slidably connected to the bottom of the mounting block. The upper end of the sensor sensing rod can abut against the contact sensor. The chain transmission component further includes a lifting motor. The support frame of the chain transmission component is fixedly connected to the output shaft of the lifting motor.

2. The air washing device of a grooved flat fixture according to claim 1, characterized in that: It further includes a vision component. The vision component includes a connecting block, a CCD camera and a ring light source. The connecting block is installed on the X-axis moving part. The CCD camera is installed below the connecting block. The ring light source is installed outside the lens of the CCD camera.

3. The air washing device of a grooved flat jig according to claim 2, characterized in that: The chain transmission component further includes two groups of clamping mechanisms. The clamping mechanism includes a clamping block, a clamping cylinder and a lateral moving part. The lateral moving parts of the two groups of clamping mechanisms are respectively fixed on both sides of the support frame. The clamping cylinder is installed on the lateral moving part. The clamping block is installed on the output shaft of the clamping cylinder.

4. The air washing device of a grooved flat jig according to claim 3, characterized in that: The lifting mechanism includes a wind washing motor, a lead screw and a nut. The lead screw is fixedly connected to the output shaft of the wind washing motor. The nut is threadedly connected to the lead screw. One ends of a plurality of the connecting rods are hinged to the outside of the nut, and the other ends of a plurality of the connecting rods are respectively hinged to a plurality of the jet nozzles.

5. The air washing device of a grooved flat jig according to claim 4, characterized in that: The bracket includes a portal frame, a support rod, and two telescopic shafts. The telescopic shafts are fixedly installed on the portal frame. The support frame is fixed on the two telescopic shafts. The top of the support rod is fixed to the support frame. The bottom of the support rod is rotatably connected to a pulley located below the support frame. The lifting motor is fixed on the portal frame, and the output shaft of the lifting motor is fixedly connected to the support rod.

6. The air washing device of a grooved flat fixture according to claim 5, characterized in that: It further includes a mounting bracket and an air knife. The mounting bracket is fixed on the portal frame. The air knife is installed on the mounting bracket, and the air knife is located on the side of the chain above the vibration washing tank.

7. A cleaning method for a grooved flat fixture, characterized in that: Using the air washing device of the grooved flat fixture described in claim 6 for cleaning, it includes the following steps: S1: Benchmark height measurement: The X-axis moving part drives the height measurement component to move above the chain transmission component. The lifting motor drives the support frame to rise so that the upper end surface of the chain pushes up the sensor sensing rod, enabling the contact sensor to sense the sensor sensing rod. When the contact sensor first senses the sensor sensing rod, the lifting motor stops rising. Subsequently, the lifting motor starts to descend. When the contact sensor no longer senses, it stops descending. This movement is repeated. Each time the lifting motor switches between rising and descending, the pulse signal of its movement speed is halved until the speed drops to the set value. Then, the above actions are stopped, and the height at which the lifting motor lifts at present is recorded as the reference height of the lifting platform. S2: Positioning and clamping: Place the fixture to be cleaned on the chain transmission component. The clamping cylinder moves to the lower position, making the clamping block act as a positioning block. The chain moves to the right, causing the fixture to align with the clamping block. The transverse moving part drives the clamping cylinder on the right to move a certain distance to the right away from the right edge of the fixture. The clamping cylinder moves to the upper position. The transverse moving part drives the clamping cylinder on the right to move to the left above the right edge of the fixture again. The transverse moving part on the other side drives the clamping cylinder on the left to move to the right above the right edge of the fixture. The clamping cylinders on both sides move to the lower position to fix and clamp the fixture. S3: Preliminary detection: The X-axis moving part drives the vision component to move above the fixture. The CCD camera performs automatic focusing and takes pictures. The generated images are processed to identify and record the abnormal points among them. S4: Actual height measurement: The X-axis moving part drives the height measurement component to move above the chain transmission component. The lifting motor drives the support frame and the roller to rise so that the upper end surface of the fixture pushes up the sensor sensing rod, enabling the contact sensor to sense the sensor sensing rod. When the contact sensor first senses the sensor sensing rod, the lifting motor stops rising. Subsequently, the lifting motor starts to descend. When the contact sensor no longer senses, it stops descending. This movement is repeated. Each time the lifting motor switches between rising and descending, the pulse signal of its movement speed is halved until the speed drops to the set value. Then, the above actions are stopped, and the height at which the lifting motor lifts at present is recorded as the measured height of the fixture. The thickness of the fixture = reference height of the lifting platform - measured height of the fixture. S5: Initial negative pressure cleaning: The X-axis moving part drives the air washing component to move to the starting point on the right side of the fixture. The Y-axis moving part drives the air washing component to descend to the innermost starting point of the fixture. The lifting motor raises and lowers according to the actual thickness of the fixture so that the surface of the fixture is 4 mm away from the lower side of the air washing component. The negative pressure suction port is opened to start suction. The X-axis moving part and the Y-axis moving part move synchronously to make the air washing component complete the entire fixture along the set movement route, completing the initial negative pressure suction cleaning to remove floating dust and foreign objects on the surface. S6: Strong air washing: The air washing component returns to the starting position. At this time, both the negative pressure suction port and the jet nozzle are in the working state. The air washing motor drives the screw to rotate, so that the nut moves up and down, driving the connecting rod to move, thereby adjusting the angle of the jet nozzle so that the air flow angle can blow to the corners of the fixture grooves. The X-axis moving part and the Y-axis moving part move synchronously to make the air washing component complete the entire fixture along the set movement route, completing the strong air washing to remove foreign objects in the fixture grooves. S7: Secondary negative pressure cleaning: The air washing component returns to the starting position. The jet nozzle is closed and the negative pressure suction port is opened. The X-axis moving part and the Y-axis moving part move synchronously to make the air washing component complete the entire fixture along the set movement route, completing the secondary negative pressure suction cleaning to remove floating dust and foreign objects on the surface. S8: Secondary detection: The X-axis moving part drives the vision component above the fixture. The CCD camera performs automatic focusing and takes pictures. The generated images are processed and compared with the initial detection results to determine the cleaning effect. If the cleaning is not thorough, repeat step S7 or repeat steps S6 and S7. If the cleaning is thorough, proceed to the next step. S9: Cleaning completed: The clamping cylinder moves to the upper position. The horizontal moving part drives the clamping cylinder away from the fixture. The cleaning is completed and the fixture is taken away. S10: Chain cleaning: After each fixture is cleaned, the air knife starts and the chain rotates one circle to remove the foreign objects remaining on the chain. After every n times of fixture cleaning, the operation is paused. The lifting motor drives the support rod to descend so that the pulley located at the lower part of the support frame is immersed in the vibration washing tank. The ultrasonic oscillator starts and the chain moves slowly for ultrasonic vibration washing of the chain. The air knife starts to remove the water residue on the surface of the chain.

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