Grinding and polishing device for valve element inner hole of automobile electromagnetic valve

Abstract

The invention relates to the technical field of electromagnetic valve element inner hole grinding, and discloses an automobile electromagnetic valve element inner hole grinding and polishing device which comprises a clamping assembly, a grinding assembly is installed at the front end of the clamping assembly, a cooling liquid pipe is installed on the clamping assembly, and a deep grinding mechanism is further installed at the rear end of the clamping assembly. The deep grinding mechanism comprises a first filter plate and a second filter plate, the first filter plate and the second filter plate are matched to screen abrasive particles, a high-molecular polymer is arranged in the deep grinding mechanism, the abrasive particles and the high-molecular polymer are mixed to form a viscoelastic body, and the viscoelastic body is squeezed into an inner hole of the valve element and grinds the deep position of the inner hole; a clamping hole is formed in the fixing plate, rail grooves are formed in the two sides of the clamping hole correspondingly, sliding blocks are movably connected into the rail grooves in a sleeved mode correspondingly, elastic clamping strips are fixedly installed at the inner side ends of the sliding blocks correspondingly, and the device has the automatic grinding function and can grind the deep position of an inner hole of the valve element.

Description

Technical Field

[0001] This invention relates to the field of grinding technology for the inner bore of solenoid valve cores, and more specifically to a grinding and polishing device for the inner bore of automotive solenoid valve cores. Background Technology

[0002] When manufacturing solenoid valve cores, there are often many burrs and flashes in the inner hole. This requires a grinding device to grind and polish the inner hole of the solenoid valve core. However, the existing grinding devices still have the following shortcomings in actual use. First, when grinding the inner hole of the solenoid valve core using existing grinding equipment, workers often need to hold the grinding equipment to grind and polish the inner hole of the solenoid valve core and its adjacent planes. This method is inconvenient and has a low degree of automation. Secondly, existing grinding devices typically use high-speed rotating grinding rollers to grind the inner hole of the solenoid valve core. Because the inner hole of the solenoid valve core is small and its internal channels are complex, when workers use high-speed rotating grinding rollers to grind the inner hole of the solenoid valve core, they can often only grind to a shallow part of the inner hole and grind adjacent planes. However, it is difficult to grind the burrs and flashes deep inside the inner hole of the solenoid valve core. In other words, the functionality of existing grinding devices is poor. Therefore, in order to solve the above problems, it is necessary to provide a grinding and polishing device for the inner hole of the valve core of an automotive solenoid valve. Summary of the Invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a grinding and polishing device for the inner hole of the valve core of an automotive solenoid valve, so as to solve the problems existing in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a grinding and polishing device for the inner hole of an automotive solenoid valve core, comprising a clamping assembly, a grinding assembly installed at the front end of the clamping assembly, a coolant pipe installed on the clamping assembly, and a deep grinding mechanism installed at the rear end of the clamping assembly, the deep grinding mechanism comprising a first filter plate and a second filter plate, the first filter plate and the second filter plate cooperating to screen abrasive particles; The deep grinding mechanism contains a polymer. The abrasive particles are mixed with the polymer to form a viscoelastic body. The viscoelastic body is squeezed into the inner hole of the valve core and ground deep inside the hole.

[0005] Furthermore, the clamping assembly includes a fixed plate with clamping holes. Track grooves are formed on both sides of the clamping holes, and sliders are movably fitted into each track groove. Elastic clamping strips are fixedly installed on the inner ends of each slider, and clamping screws are movably fitted onto the outer ends of each slider via bearings. Fixed blocks are fixedly installed at both outer ends of the track grooves. The clamping screws are threadedly connected to the fixed blocks, and handwheels are fixedly installed at the ends of the shafts of the clamping screws. The coolant pipe is mounted on the fixed plate.

[0006] Furthermore, the grinding assembly includes two horizontal plates, which are symmetrically installed on the upper and lower ends of the fixed plate. Horizontal end blocks are fixedly installed at both ends of each horizontal plate, and horizontal guide posts are fixedly connected between the horizontal end blocks. A horizontal moving plate is movably sleeved on the horizontal guide post, and a horizontal lead screw is threadedly sleeved on the horizontal moving plate. The horizontal lead screw is movably sleeved between the two horizontal end blocks, and a horizontal motor is connected to the end of the shaft of the horizontal lead screw. The horizontal motor is fixedly installed on one side of the horizontal end block.

[0007] Furthermore, vertical guide posts are fixedly connected between the horizontal moving plates, and two vertical moving plates are movably sleeved on the vertical guide posts. A vertical screw is threadedly sleeved on each vertical moving plate, and the vertical screw is movably sleeved between the upper and lower horizontal moving plates. A vertical motor is connected to the end of the shaft of the vertical screw, and the vertical motor is fixedly installed on the horizontal moving plate.

[0008] Furthermore, connecting plates are fixedly installed between both ends of the vertical moving plate, an axial column is fixedly connected between the connecting plates, an axial screw is movably sleeved between the connecting plates, a shaft moving plate is threadedly sleeved on the axial screw, the shaft moving plate is movably sleeved with the axial column, and an axial motor is connected to the end of the shaft of the axial screw, the axial motor is fixedly installed on the connecting plate.

[0009] Furthermore, a grinding motor is fixedly mounted on the shaft plate, and a grinding rod is fixedly mounted on the drive shaft of the grinding motor.

[0010] Furthermore, the deep grinding mechanism includes a filtrate chamber, which is fixedly installed on the bottom side of a fixed plate. A grid plate is provided on the front side of the filtrate chamber, and a sealing plate is fixedly installed on the bottom of the filtrate chamber. First filter plates are fixedly installed on the rear back plate of the filtrate chamber. A middle plate is installed at the bottom of the back plate of the filtrate chamber, and a second filter plate is fixedly installed on the middle plate. An upper cylinder plate is fixedly installed at the upper end of the filtrate chamber. A lower arc cylinder is movably installed between the middle plates, and the lower arc cylinder is adapted to the upper cylinder plate. When the lower arc cylinder and the upper cylinder plate are joined, a complete silo is formed. Side plates are provided on both sides of the lower arc cylinder. The side plate is movably sleeved with the upper cylinder plate. A through groove is provided on the bottom side of each side plate. A coupling electric cylinder is fixedly installed on both sides of the upper cylinder plate. The drive shaft of the coupling electric cylinder is fixedly connected to the side plates on both sides respectively. A push block is provided on the middle plate. A mixing electric cylinder is provided on the outside of the filtrate chamber. The drive shaft of the mixing electric cylinder is fixedly connected to the push block. An end cylinder plate is fixedly installed at the rear end of the upper cylinder plate and the rear end of the lower arc cylinder. Side plates are fixedly installed at both ends of the rear side of the filtrate chamber. The mixing electric cylinder is fixedly installed on the side plates. A water box is fixedly installed at the bottom of the middle plate.

[0011] Furthermore, the polymer is stored in the lower arc cylinder, and the polymer is polybutene.

[0012] Furthermore, a connecting ring block is fixedly installed at the joint between the upper cylinder plate and the clamping hole, a rear seat is fixedly installed at the rear end of the side plate, a lower cylinder is opened at the bottom of the rear seat, the lower cylinder is aligned with the lower arc cylinder, a movable plug is movably sleeved in the lower cylinder, a stirring motor is installed at the front end of the movable plug, an electric heating stirring shaft is provided on the drive shaft of the stirring motor, a lower electric cylinder is fixedly installed on the outer side of the rear seat, and the drive shaft of the lower electric cylinder is fixedly connected to the movable plug.

[0013] Furthermore, an upper silo is provided on the upper part of the rear seat, and a compression plug is movably sleeved in the upper silo. The upper silo is aligned with the cylinder hole of the upper cylinder plate. An upper electric cylinder is fixedly installed on the outer side of the rear seat. The drive shaft of the upper electric cylinder is fixedly connected to the compression plug. A cover plate is fixedly installed on the upper silo.

[0014] The technical effects and advantages of this invention are as follows: When in use, the grinding motor drives the grinding rod to rotate at high speed, thereby grinding the inner hole of the solenoid valve core clamped in the clamping hole. The horizontal motor drives the horizontal screw to rotate, thereby driving the horizontal moving plate to move laterally. The vertical motor drives the vertical screw to rotate, thereby driving the vertical moving plate to move longitudinally. The axial motor drives the axial screw to rotate, thereby driving the axial moving plate to move along the axial direction of the grinding rod. In this way, the grinding position of the grinding rod can be automatically adjusted, improving the grinding convenience and automation of the device. After the grinding rod grinds the shallow inner hole of the solenoid valve core and adjacent surfaces, the coolant, mixed with the hard particles generated during the grinding process, flows from the grid plate into the filter chamber. After preliminary filtration by the first filter plate, larger hard particles that easily abrade the inner hole of the solenoid valve core are intercepted. Extremely small hard particles that do not have a grinding effect are filtered out by the water flow from the second filter plate and collected in the water box. At this point, the second filter plate retains the fine hard particles suitable for grinding the inner hole of the valve core after screening. Then, the mixing electric cylinder drives the pusher to move, mixing these fine hard particles as abrasive with the polybutene material at the lower arc cylinder. The lower electric cylinder then drives the movement... The plunger moves forward, causing the electric heating stirring shaft to enter the lower arc cylinder. The electric heating stirring shaft heats the mixture here, and the stirring motor drives the electric heating stirring shaft to stir the mixture, thereby forming a viscoelastic body mixed with abrasive. After the electric heating stirring shaft returns to its original position, the engaging electric cylinder drives the side plate to move the lower arc cylinder upward, so that the lower arc cylinder and the upper cylinder plate are joined to form a complete silo. Driven by the upper electric cylinder, the extrusion plunger squeezes the viscoelastic body in the silo through the connecting ring block into the inner hole of the solenoid valve core. When the viscoelastic body flows in the inner hole, the abrasive it carries can grind the burrs and flashes deep in the inner hole, thereby improving the grinding functionality of the device. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the clamping component structure of the present invention; Figure 3 This is a schematic diagram of the grinding component structure of the present invention; Figure 4 This is a schematic diagram of the structure at the grid plate of the present invention; Figure 5 This is a schematic diagram of the structure at the lower arc cylinder of the present invention; Figure 6 This is a schematic diagram of the structure at the connecting ring block of the present invention; Figure 7 This is a schematic cross-sectional view of the deep grinding mechanism of the present invention.

[0016] The attached figures are labeled as follows: 1. Clamping assembly; 101. Fixing plate; 102. Clamping hole; 103. Rail groove; 104. Slider; 105. Elastic clamping bar; 106. Clamping screw; 107. Fixing block; 108. Handwheel; 2. Grinding assembly; 201. Horizontal plate; 202. Horizontal end block; 203. Horizontal guide post; 204. Horizontal moving plate; 205. Horizontal screw; 206. Horizontal motor; 207. Vertical guide post; 208. Vertical moving plate; 209. Vertical screw; 210. Vertical motor; 211. Connecting plate; 212. Axial column; 213. Axial screw; 214. Shaft moving plate; 215. Axial motor; 216. Grinding motor; 217. Grinding rod; 3. 4. Coolant pipe; 4. Deep grinding mechanism; 401. Filter tank; 402. Grid plate; 403. Sealing plate; 404. First filter plate; 405. Middle plate; 406. Second filter plate; 407. Upper cylinder plate; 408. Lower arc cylinder; 409. Side plate; 410. Through groove; 411. Engaging electric cylinder; 412. Push block; 413. Mixing electric cylinder; 414. End cylinder plate; 415. Side plate; 416. Water box; 417. Connecting ring block; 418. Rear seat; 419. Lower silo; 420. Movable plug; 421. Stirring motor; 422. Electric heating stirring shaft; 423. Lower electric cylinder; 424. Upper silo; 425. Extrusion plug; 426. Upper electric cylinder; 427. Cover cylinder plate. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The grinding and polishing device for the inner hole of the valve core of an automotive solenoid valve involved in the present invention is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Reference Figure 1 The present invention provides a grinding and polishing device for the inner hole of an automotive solenoid valve core, including a clamping assembly 1, a grinding assembly 2 installed at the front end of the clamping assembly 1, a coolant pipe 3 installed on the clamping assembly 1, and a deep grinding mechanism 4 installed at the rear end of the clamping assembly 1. When in use, the device uses clamping assembly 1 to clamp and fix the solenoid valve core, and grinding assembly 2 to grind the inner hole of the solenoid valve core clamped by clamping assembly 1. During the grinding process, coolant pipe 3 is connected to a coolant pump and delivers coolant to the grinding area, thereby cooling the valve core during grinding. Grinding assembly 2 can automatically adjust the grinding position, and deep grinding mechanism 4 can perform a deeper grinding work on the valve core after grinding by grinding assembly 2. Since the coolant delivery effect of the coolant pipe 3 is a conventional technique known to those skilled in the art, the external coolant pump and coolant tank will not be described in detail in this embodiment.

[0019] Reference Figure 2 The clamping assembly 1 includes a fixed plate 101, a clamping hole 102 is provided in the fixed plate 101, and rail grooves 103 are provided on both sides of the clamping hole 102. A slider 104 is movably sleeved in each rail groove 103. An elastic clamping strip 105 is fixedly installed on the inner end of each slider 104. A clamping screw 106 is movably sleeved on the outer end of each slider 104 through a bearing. A fixing block 107 is fixedly installed on both outer ends of the rail groove 103. The clamping screw 106 is threadedly sleeved with the fixing block 107 respectively. A handwheel 108 is fixedly installed on the end of the shaft of the clamping screw 106. The coolant pipe 3 is installed on the fixed plate 101. When in use, the solenoid valve core is placed in the clamping hole 102, and the elastic clamping strips 105 on both sides are clamped by rotating the handwheels 108 at both ends, thereby realizing the clamping and fixing function of the solenoid valve core.

[0020] Reference Figure 3 The grinding assembly 2 includes two horizontal plates 201, which are symmetrically installed at the upper and lower ends of the fixed plate 101. Horizontal end blocks 202 are fixedly installed at both ends of the horizontal plates 201. A horizontal guide post 203 is fixedly connected between the horizontal end blocks 202. A horizontal moving plate 204 is movably sleeved on the horizontal guide post 203. A horizontal screw 205 is threadedly sleeved on the horizontal moving plate 204. The horizontal screw 205 is movably sleeved between the two horizontal end blocks 202. A horizontal motor 206 is connected to the end of the shaft of the horizontal screw 205. The horizontal motor 206 is fixedly installed on one side of the horizontal end block 202. A vertical guide post 207 is fixedly connected between the horizontal moving plates 204. Two vertical moving plates 208 are movably sleeved on the vertical guide post 207. A vertical screw 209 is threadedly sleeved on the vertical moving plate 208. The vertical screw 209 is movably sleeved between the upper and lower horizontal moving plates 204. A vertical motor 210 is connected to the end of the shaft of the vertical screw 209. The vertical motor 210 is fixedly installed on the horizontal moving plate 204. A connecting plate 211 is fixedly installed between both ends of the vertical plate 208. An axial column 212 is fixedly connected between the connecting plates 211. An axial screw 213 is movably sleeved between the connecting plates 211. A shaft moving plate 214 is threadedly sleeved on the axial screw 213. The shaft moving plate 214 is movably sleeved with the axial column 212. An axial motor 215 is connected to the end of the shaft of the axial screw 213. The axial motor 215 is fixedly installed on the connecting plate 211. A grinding motor 216 is fixedly mounted on the shaft plate 214, and a grinding rod 217 is fixedly mounted on the drive shaft of the grinding motor 216. When in use, the grinding motor 216 drives the grinding rod 217 to rotate at high speed, thereby grinding the inner hole of the solenoid valve core clamped in the clamping hole 102. The horizontal motor 206 drives the horizontal lead screw 205 to rotate, thereby driving the horizontal moving plate 204 to move laterally. The vertical motor 210 drives the vertical lead screw 209 to rotate, thereby driving the vertical moving plate 208 to move longitudinally. The axial motor 215 drives the axial lead screw 213 to rotate, thereby driving the axial moving plate 214 to move along the axial direction of the grinding rod 217. In this way, the grinding position of the grinding rod 217 can be automatically adjusted, improving the grinding convenience and automation of the device.

[0021] Reference Figures 4-7 The deep grinding mechanism 4 includes a filtrate chamber 401, which is fixedly installed on the bottom side of the fixed plate 101. A grid plate 402 is provided on the front side of the filtrate chamber 401, and a sealing plate 403 is fixedly installed on the bottom of the filtrate chamber 401. First filter plates 404 are fixedly installed on the rear back plate of the filtrate chamber 401. A middle plate 405 is installed at the bottom of the back plate of the filtrate chamber 401, and a second filter plate 406 is fixedly installed on the middle plate 405. An upper cylinder plate 407 is fixedly installed at the upper end of the filtrate chamber 401. A lower arc cylinder 408 is movably installed between the middle plates 405. The lower arc cylinder 408 is adapted to the upper cylinder plate 407, and when the lower arc cylinder 408 and the upper cylinder plate 407 are joined, a complete cylinder is formed. Side plates 409 are provided on both sides of the lower arc cylinder 408. Plate 409 is movably sleeved with upper cylinder plate 407. The bottom side of side plate 409 is provided with through groove 410. Both sides of upper cylinder plate 407 are fixedly installed with engagement electric cylinder 411. The drive shaft of engagement electric cylinder 411 is fixedly connected to the side plates 409 on both sides respectively. Push block 412 is provided on middle plate 405. Mixing electric cylinder 413 is provided on the outside of filtrate chamber 401. The drive shaft of mixing electric cylinder 413 is fixedly connected to push block 412. End cylinder plate 414 is fixedly installed at the rear end of upper cylinder plate 407 and the rear end of lower arc cylinder 408. Side plate 415 is fixedly installed at both ends of the rear side of filtrate chamber 401. Mixing electric cylinder 413 is fixedly installed on side plate 415. Water box 416 is fixedly installed at the bottom of middle plate 405. The first filter plate 404 is an 80-mesh filter screen, the second filter plate 406 is a 120-mesh filter screen, and the lower arc cylinder 408 contains polybutene material; A connecting ring block 417 is fixedly installed at the joint between the upper cylinder plate 407 and the clamping hole 102. A rear seat 418 is fixedly installed at the rear end of the side plate 415. A lower cylinder 419 is opened at the bottom of the rear seat 418. The lower cylinder 419 is aligned with the lower arc cylinder 408. A movable plug 420 is movably sleeved in the lower cylinder 419. A stirring motor 421 is installed at the front end of the movable plug 420. An electric heating stirring shaft 422 is provided on the drive shaft of the stirring motor 421. A lower electric cylinder 423 is fixedly installed on the outside of the rear seat 418. The drive shaft of the lower electric cylinder 423 is fixedly connected to the movable plug 420. An upper silo 424 is provided on the upper part of the rear seat 418. A compression plug 425 is movably sleeved in the upper silo 424. The upper silo 424 is aligned with the cylinder hole of the upper cylinder plate 407. An upper electric cylinder 426 is fixedly installed on the outer side of the rear seat 418. The drive shaft of the upper electric cylinder 426 is fixedly connected to the compression plug 425. A cover plate 427 is fixedly installed on the upper silo 424. In use, before clamping, the rear end through hole of the solenoid valve core is aligned with the inner hole of the connecting ring block 417, so that the rear end plane of the valve body fits against the plane of the connecting ring block 417. After the grinding rod 217 grinds the shallow part of the inner hole of the solenoid valve core and the adjacent plane, the coolant mixed with the hard particles generated during the grinding process flows from the grid plate 402 into the filter tank 401. After the initial filtration by the first filter plate 404, the larger hard particles that are easy to wear the inner hole of the solenoid valve core are intercepted. The extremely small hard particles that do not have the grinding effect are filtered out by the water flow from the second filter plate 406 and flow into the water box 416 for collection. At this time, the second filter plate 406 retains the fine hard particles that are suitable for grinding the inner hole of the valve core after screening. At this time, the mixing cylinder 413 drives the push block 412 to move, and uses these fine hard particles as abrasives to grind the lower arc cylinder 408. The polybutene material is mixed at the location. The lower electric cylinder 423 drives the movable plug 420 to move forward, so that the electric heating stirring shaft 422 enters the lower arc cylinder 408. The electric heating stirring shaft 422 heats the mixture here. The stirring motor 421 drives the electric heating stirring shaft 422 to stir the mixture, thereby forming a viscoelastic body mixed with abrasive. After the electric heating stirring shaft 422 is reset, the engaging electric cylinder 411 drives the side plate 409 to move the lower arc cylinder 408 upward, so that the lower arc cylinder 408 and the upper cylinder plate 407 are joined to form a complete silo. Under the drive of the upper electric cylinder 426, the extrusion plug 425 squeezes the viscoelastic body in the silo into the inner hole of the solenoid valve core through the connecting ring block 417. When the viscoelastic body flows in the inner hole, the abrasive it carries can grind the burrs and flashes deep in the inner hole, thereby improving the grinding functionality of the device.

[0022] The working principle of this invention is as follows: When the device is in use, the grinding motor 216 can drive the grinding rod 217 to rotate at high speed, thereby grinding the inner hole of the solenoid valve core clamped in the clamping hole 102. The horizontal motor 206 can drive the horizontal lead screw 205 to rotate, thereby driving the horizontal moving plate 204 to move laterally. The vertical motor 210 can drive the vertical lead screw 209 to rotate, thereby driving the vertical moving plate 208 to move longitudinally. The axial motor 215 can drive the axial lead screw 213 to rotate, thereby driving the axial moving plate 214 to move along the axial direction of the grinding rod 217. Through the above methods, the grinding position of the grinding rod 217 can be automatically adjusted, improving the grinding convenience and automation of the device. After the grinding rod 217 grinds the shallow part of the inner hole of the solenoid valve core and the adjacent plane, the coolant mixed with the hard particles generated during the grinding process flows from the grid plate 402 into the filter tank 401. After the initial filtration by the first filter plate 404, the larger hard particles that are easy to wear the inner hole of the solenoid valve core are intercepted. The extremely small hard particles that do not have a grinding effect are filtered out by the water flow from the second filter plate 406 and flow into the water box 416 for collection. At this time, the second filter plate 406 retains the fine hard particles that are suitable for grinding the inner hole of the valve core after screening. At this time, the mixing electric cylinder 413 drives the pusher 412 to move, and mixes the fine hard particles as abrasive with the polybutene material at the lower arc cylinder 408. The lower electric cylinder 423 drives the movable plug 420 forward. The movement causes the electric heating stirring shaft 422 to enter the lower arc cylinder 408, where it heats the mixture. The stirring motor 421 drives the electric heating stirring shaft 422 to stir the mixture, thereby forming a viscoelastic body mixed with abrasive. After the electric heating stirring shaft 422 returns to its original position, the engaging electric cylinder 411 drives the side plate 409 to move the lower arc cylinder 408 upward, so that the lower arc cylinder 408 and the upper cylinder plate 407 are joined to form a complete silo. Driven by the upper electric cylinder 426, the extrusion plug 425 squeezes the viscoelastic body in the silo into the inner hole of the solenoid valve core through the connecting ring block 417. When the viscoelastic body flows in the inner hole, the abrasive it carries can grind the burrs and flashes deep in the inner hole, thereby improving the grinding functionality of the device.

[0023] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other. In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A grinding and polishing device for the inner hole of an automotive solenoid valve core, comprising a clamping assembly (1), wherein a grinding assembly (2) is mounted on the front end of the clamping assembly (1), and a coolant pipe (3) is mounted on the clamping assembly (1), characterized in that: The rear end of the clamping assembly (1) is also equipped with a deep grinding mechanism (4). The deep grinding mechanism (4) includes a first filter plate (404) and a second filter plate (406), wherein the first filter plate (404) and the second filter plate (406) cooperate to screen abrasive particles; The deep grinding mechanism (4) contains a polymer. The abrasive particles are mixed with the polymer to form a viscoelastic body. The viscoelastic body is squeezed into the inner hole of the valve core and the inner hole is ground.

2. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 1, characterized in that: The clamping assembly (1) includes a fixed plate (101), a clamping hole (102) is provided in the fixed plate (101), and rail grooves (103) are provided on both sides of the clamping hole (102). A slider (104) is movably sleeved in each rail groove (103). An elastic clamping strip (105) is fixedly installed on the inner end of each slider (104). A clamping screw (106) is movably sleeved on the outer end of each slider (104) through a bearing. A fixing block (107) is fixedly installed on both outer ends of the rail groove (103). The clamping screw (106) is threadedly sleeved with the fixing block (107). A handwheel (108) is fixedly installed at the end of the shaft of the clamping screw (106). The coolant pipe (3) is installed on the fixed plate (101).

3. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 2, characterized in that: The grinding assembly (2) includes a horizontal plate (201). There are two horizontal plates (201) and they are symmetrically installed on the upper and lower ends of the fixed plate (101). Horizontal end blocks (202) are fixedly installed on both ends of the horizontal plates (201). Horizontal guide posts (203) are fixedly connected between the horizontal end blocks (202). A horizontal moving plate (204) is movably sleeved on the horizontal guide post (203). A horizontal lead screw (205) is threadedly sleeved on the horizontal moving plate (204). The horizontal lead screw (205) is movably sleeved between the two horizontal end blocks (202). A horizontal motor (206) is connected to the end of the shaft of the horizontal lead screw (205). The horizontal motor (206) is fixedly installed on one side of the horizontal end block (202).

4. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 3, characterized in that: A vertical guide post (207) is fixedly connected between the horizontal moving plates (204). Two vertical moving plates (208) are movably sleeved on the vertical guide post (207). A vertical screw (209) is threadedly sleeved on the vertical moving plate (208). The vertical screw (209) is movably sleeved between the upper and lower horizontal moving plates (204). A vertical motor (210) is connected to the end of the shaft of the vertical screw (209). The vertical motor (210) is fixedly installed on the horizontal moving plate (204).

5. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 4, characterized in that: A connecting plate (211) is fixedly installed between both ends of the vertical moving plate (208). An axial column (212) is fixedly connected between the connecting plates (211). An axial screw (213) is movably sleeved between the connecting plates (211). A shaft moving plate (214) is threadedly sleeved on the axial screw (213). The shaft moving plate (214) is movably sleeved with the axial column (212). An axial motor (215) is connected to the end of the shaft of the axial screw (213). The axial motor (215) is fixedly installed on the connecting plate (211).

6. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 5, characterized in that: A grinding motor (216) is fixedly installed on the shaft plate (214), and a grinding rod (217) is fixedly installed on the drive shaft of the grinding motor (216).

7. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 6, characterized in that: The deep grinding mechanism (4) includes a filtrate chamber (401), which is fixedly installed on the bottom side of the fixed plate (101). A grid plate (402) is provided on the front side of the filtrate chamber (401), a sealing plate (403) is fixedly installed on the bottom of the filtrate chamber (401), and a first filter plate (404) is fixedly installed on the rear back plate of the filtrate chamber (401). A middle plate (405) is installed at the bottom of the back plate of the filtrate chamber (401). A second filter plate (406) is fixedly installed on the middle plate (405), an upper cylinder plate (407) is fixedly installed at the upper end of the filtrate chamber (401), a lower arc cylinder (408) is movably installed between the middle plates (405), the lower arc cylinder (408) is adapted to the upper cylinder plate (407), and a complete chamber is formed when the lower arc cylinder (408) and the upper cylinder plate (407) are joined, and side plates (409) are provided on both sides of the lower arc cylinder (408). The side plate (409) is movably sleeved with the upper cylinder plate (407). A through groove (410) is provided on the bottom side of each side plate (409). Engaging electric cylinders (411) are fixedly installed on both sides of the upper cylinder plate (407). The drive shafts of the engaging electric cylinders (411) are fixedly connected to the side plates (409) on both sides. A push block (412) is provided on the middle plate (405). A mixing electric cylinder is provided on the outer side of the filtrate chamber (401). The mixing cylinder (413) has its drive shaft fixedly connected to the push block (412). The rear end of the upper cylinder plate (407) and the rear end of the lower arc cylinder (408) are both fixedly installed with end cylinder plates (414). The rear ends of the filtrate chamber (401) are both fixedly installed with side plates (415). The mixing cylinder (413) is fixedly installed on the side plates (415). The bottom of the middle plate (405) is fixedly installed with a water box (416).

8. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 7, characterized in that: The polymer is stored in the lower arc cylinder (408), and the polymer is polybutene.

9. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 8, characterized in that: A connecting ring block (417) is fixedly installed at the joint between the upper cylinder plate (407) and the clamping hole (102). A rear seat (418) is fixedly installed at the rear end of the side plate (415). A lower silo (419) is opened at the bottom of the rear seat (418). The lower silo (419) is aligned with the lower arc cylinder (408). A movable plug (420) is movably sleeved in the lower silo (419). A stirring motor (421) is installed at the front end of the movable plug (420). An electric stirring shaft (422) is provided on the drive shaft of the stirring motor (421). A lower electric cylinder (423) is fixedly installed on the outside of the rear seat (418). The drive shaft of the lower electric cylinder (423) is fixedly connected to the movable plug (420).

10. The grinding and polishing device for the inner bore of the automotive solenoid valve core according to claim 9, characterized in that: The upper part of the rear seat (418) is provided with an upper silo (424), and a compression plug (425) is movably sleeved in the upper silo (424). The upper silo (424) is aligned with the cylinder hole of the upper cylinder plate (407). An upper electric cylinder (426) is fixedly installed on the outside of the rear seat (418). The drive shaft of the upper electric cylinder (426) is fixedly connected to the compression plug (425). A cover plate (427) is fixedly installed on the upper silo (424).

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