Automatic grinding device for hydraulic device accessories

Abstract

The invention discloses an automatic grinding device for hydraulic device accessories, and belongs to the field of hydraulic accessory grinding. An automatic grinding device for hydraulic device accessories comprises a machining table, a mounting seat is fixedly connected to one side of the machining table, a distance adjusting groove is formed in the other side of the machining table, a clamping seat is slidably connected into the distance adjusting groove, a distance adjusting part for driving the clamping seat to move is arranged in the distance adjusting groove, and the automatic grinding device further comprises a grinding assembly; the polishing assembly is arranged between the mounting seat and the clamping seat; according to the hydraulic rod piece polishing device, flow guide blades rapidly rotate in a water storage tank, firstly, water flow drips onto a hydraulic rod piece in rotary polishing along a water spraying pipe, so that the polishing area of the hydraulic rod piece is cooled and lubricated, meanwhile, metal powder and other chippings generated in the polishing process are washed away through the water flow, the cleanliness in the polishing area is improved, and the polishing efficiency is improved. And the sprayed water flow is directionally drained and filtered, so that the water flow is recycled, and the energy-saving effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic fitting grinding, and particularly relates to an automatic grinding device for hydraulic device fittings. Background Art

[0002] A hydraulic device is a system that uses liquid as a working medium to transfer power and motion through pressure. Hydraulic systems are widely used in various industrial equipment, construction machinery, vehicles and other fields, and are favored for their high power density, precise control and reliability; the piston rod in a hydraulic device is a very critical component, responsible for transmitting pushing and pulling forces and achieving linear motion. In order to improve the performance of the piston rod, its surface usually needs to be polished so that it can be used for a long time in a high-precision and high-load environment, thereby ensuring the efficient operation of the hydraulic system.

[0003] Currently, when polishing the surface of the piston rod, a certain amount of debris will be generated in the grinding area, reducing the cleanliness of the grinding area. Moreover, the temperature of the piston rod surface will rise during grinding, which is likely to cause its deformation and excessive wear. Therefore, an automatic grinding device for hydraulic device fittings is proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the prior art that a certain amount of debris will be generated in the grinding area, reducing the cleanliness of the grinding area, and the temperature of the piston rod surface will rise during grinding, which is likely to cause its deformation and excessive wear, and to propose an automatic grinding device for hydraulic device fittings.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions: An automatic grinding device for hydraulic device fittings, including a processing table, a mounting seat is fixedly connected to one side of the processing table, an adjustment groove is opened on the other side of the processing table, a clamping seat is slidably connected in the adjustment groove, and an adjustment part for driving the clamping seat to move is arranged in the adjustment groove. It also includes: a grinding assembly, the grinding assembly is arranged between the mounting seat and the clamping seat, and the grinding assembly is used for grinding hydraulic fittings; a diversion assembly, the diversion assembly is arranged in the processing table, and the diversion assembly is used for cooling and dust removal of the area where the hydraulic fittings are during grinding.

[0006] In order to improve the grinding efficiency, preferably, the grinding assembly includes a shielding ring, a movable seat is fixedly connected to the bottom of the shielding ring, a reciprocating screw is rotatably connected to the side wall of the mounting seat, the movable seat is threadedly sleeved on the reciprocating screw, and the bottom of the movable seat slides in contact with the surface of the processing table, a grinding arc plate is fixedly connected to the inner wall of the shielding ring, a driven clamping shaft is rotatably connected to the mounting seat, an active clamping shaft is rotatably connected to the clamping seat, a driving motor is fixedly connected to the side wall of the clamping seat, and the output shaft of the driving motor is fixedly connected to the end of the active clamping shaft.

[0007] Furthermore, the driven clamping shaft and the active clamping shaft are aligned with each other, the center of the shielding ring coincides with the center of the grinding arc plate, and the center of the grinding arc plate is on the central axis of the driven clamping shaft.

[0008] Furthermore, a driving gear is fixedly connected to the side wall of the driven clamp shaft, a reduction gear plate is rotatably connected to the side wall of the mounting seat, and a driven gear is fixedly connected to one end of the reciprocating screw rod close to the mounting seat, and the driven gear, the reduction gear plate and the driving gear are meshed with each other.

[0009] In order to facilitate the clamping of hydraulic rods of different lengths, preferably, the distance adjusting part includes a distance adjusting screw, the distance adjusting screw is rotatably connected in the distance adjusting groove, the clamping seat is threadedly sleeved on the distance adjusting screw, and the end of the reciprocating screw away from the driven gear passes through the clamping seat and is slidably connected thereto.

[0010] In order to reduce thermal wear during grinding, preferably, the guide assembly includes a water tank, which is opened in the processing table, and a guide blade is rotatably connected in the water tank, and the rotating shaft of the guide blade is connected to the driven clamping shaft through a pulley group. The top of the shielding ring is fixedly connected to a drainage box, and both sides of the inner wall of the shielding ring are fixedly connected to water pipes. The two groups of water pipes are symmetrically distributed on both sides above the grinding arc plate along the center of the grinding arc plate, and the top of the water pipe is connected to the bottom of the inner cavity of the drainage box, and the side wall of the drainage box is fixed and connected with a flow-pushing pipe, and the other end of the flow-pushing pipe is connected to the inner cavity of the water tank.

[0011] In order to achieve the recycling of cooling water flow and improve the energy-saving effect, preferably, a suction groove is opened in the movable seat, and guide grooves are opened at equal intervals on the inner wall of the baffle ring, the suction groove is connected with the inner cavity of the guide groove, and suction pipes are fixed and connected on both sides of the suction groove, drainage grooves are opened on both sides of the water storage tank, the other end of the suction pipe is connected with the inner cavity of the drainage groove, and a filter residue plate is fixedly connected in the drainage groove, a sealing plate is sealed and inserted at the end of the drainage groove, and the output end of the drainage groove and the input end of the flow pushing pipe are respectively located on both sides of the guide blade.

[0012] In order to improve the stability of the hydraulic rod during the grinding process, preferably, a sliding groove is formed in the driven clamping shaft, a top column is slidably connected in the sliding groove, a circular groove is formed in the mounting seat, a piston groove is formed at the top of the circular groove, a piston plate is slidably connected in the piston groove, the rotating shaft of the reduction gear disc penetrates into the circular groove and is fixedly connected with a magnetic plate, the magnetic plate and the piston plate repel each other magnetically, a gas guide ring groove is formed in the mounting seat, the driven clamping shaft passes through the center of the gas guide ring groove, and the sliding groove is communicated with the gas guide ring groove. The gas guide ring groove is communicated with the top cavity of the piston groove through an air charging groove, and a one-way valve is arranged in the air charging groove.

[0013] In order to improve the pumping effect, preferably, a suction pipe is fixedly connected and communicated with the side wall of the piston groove, the other end of the suction pipe is communicated with the upper part of the inner cavity of the water storage tank, and a one-way valve is arranged in the suction pipe.

[0014] In order to facilitate the discharge of the gas charged into the sliding groove, preferably, a pressure relief pipe is fixedly connected and communicated with the side wall of the gas guide ring groove, and a solenoid valve is arranged in the pressure relief pipe.

[0015] Compared with the prior art, the present invention provides an automatic grinding device for hydraulic device accessories, which has the following beneficial effects: 1. In this automatic grinding device for hydraulic device accessories, through the setting of the driven clamping shaft and the pulley group, the guide vane rotates rapidly in the water storage tank. First, the water flow is dripped along the water spraying pipe onto the hydraulic rod being rotated and ground, so as to cool and lubricate the grinding area of the hydraulic rod. At the same time, the metal powder and other debris generated during the grinding process are washed away by the water flow, improving the cleanliness of the grinding area. Moreover, the sprayed water flow is directionally diverted and filtered to realize the recycling of the water flow, improving the energy-saving effect.

[0016] 2. In this automatic grinding device for hydraulic device accessories, through the repulsive action between the magnetic plate and the piston plate, and in cooperation with the setting of the return spring, first, the top column moves towards the hydraulic rod, improving the clamping and fixing effect of the hydraulic rod; secondly, the suction force generated in the piston groove can be transmitted to the water storage tank, thereby improving the suction effect in the water storage tank and facilitating the collection of water flow and impurities.

[0017] 3. In this automatic grinding device for hydraulic device accessories, through the rotation of the driven clamping shaft, in cooperation with the setting of the driven gear, the reduction gear disc and the driving gear, the shielding ring slides reciprocally along the reciprocating screw rod, and the whole hydraulic rod is subjected to reciprocating grinding treatment, effectively improving the grinding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The schematic diagram of the overall front view structure of an automatic grinding device for hydraulic device accessories proposed by the present inventionFigure 1 ; Figure 2 The front view overall structure schematic diagram of an automatic grinding device for hydraulic device fittings proposed by the present invention Figure 2 ; Figure 3 The side view semi-sectional structure schematic diagram of an automatic grinding device for hydraulic device fittings proposed by the present invention; Figure 4 An automatic grinding device for hydraulic device fittings proposed by the present invention Figure 3 The enlarged structure schematic diagram of area A therein; Figure 5 The partial sectional structure schematic diagram of an automatic grinding device for hydraulic device fittings proposed by the present invention; Figure 6 An automatic grinding device for hydraulic device fittings proposed by the present invention Figure 5 The enlarged structure schematic diagram of area B therein; Figure 7 An automatic grinding device for hydraulic device fittings proposed by the present invention Figure 5 The enlarged structure schematic diagram of area C therein; Figure 8 The partial transverse sectional structure schematic diagram of an automatic grinding device for hydraulic device fittings proposed by the present invention.

[0019] In the figure: 1, processing table; 2, mounting seat; 3, distance adjustment groove; 31, clamping seat; 4, shielding ring; 41, moving seat; 42, reciprocating screw; 421, driven gear; 43, grinding arc plate; 44, driven clamping shaft; 441, driving clamping shaft; 442, driving gear; 45, driving motor; 46, reduction gear disc; 5, distance adjustment screw; 6, water storage tank; 61, guide vane; 62, pulley group; 63, drainage box; 631, water spraying pipe; 632, flow pushing pipe; 64, suction flow groove; 641, guide flow groove; 642, suction pipe; 65, drainage groove; 651, filter residue plate; 652, blocking plate; 7, sliding groove; 71, top column; 72, circular groove; 73, piston groove; 731, piston plate; 732, return spring; 733, inflation groove; 734, air extraction pipe; 74, magnetic plate; 75, air guide ring groove; 8, pressure relief pipe. Specific embodiments

[0020] 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.

[0021] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0022] Embodiment: Referring to Figures 1-8 , an automatic grinding device for hydraulic device fittings, comprising a processing table 1, a mounting seat 2 fixedly connected to one side of the processing table 1, an adjusting groove 3 opened on the other side of the processing table 1, a clamping seat 31 slidably connected in the adjusting groove 3, and an adjusting part for driving the clamping seat 31 to move is arranged in the adjusting groove 3. It further includes: a grinding assembly, which is arranged between the mounting seat 2 and the clamping seat 31 and is used for grinding the hydraulic fittings; a diversion assembly, which is arranged in the processing table 1 and is used for cooling and dust removal of the area where the hydraulic fittings are being ground.

[0023] Referring to Figures 1-5 , wherein, the grinding assembly includes a shielding ring 4, a moving seat 41 is fixedly connected to the bottom of the shielding ring 4, a reciprocating screw 42 is rotatably connected to the side wall of the mounting seat 2, the moving seat 41 is threadedly sleeved on the reciprocating screw 42, and the bottom of the moving seat 41 is in sliding fit with the surface of the processing table 1. A grinding arc plate 43 is fixedly connected to the inner wall of the shielding ring 4. A driven clamping shaft 44 is rotatably connected to the mounting seat 2, a driving clamping shaft 441 is rotatably connected to the clamping seat 31, and a driving motor 45 is fixedly connected to the side wall of the clamping seat 31. The output shaft of the driving motor 45 is fixedly connected to the end of the driving clamping shaft 441; the driven clamping shaft 44 and the driving clamping shaft 441 are aligned with each other, the center of the shielding ring 4 coincides with the center of the grinding arc plate 43, and the center of the grinding arc plate 43 is on the central axis of the driven clamping shaft 44; a driving gear 442 is fixedly connected to the side wall of the driven clamping shaft 44, a reduction gear disk 46 is rotatably connected to the side wall of the mounting seat 2, and a driven gear 421 is fixedly connected to one end of the reciprocating screw 42 close to the mounting seat 2. The driven gear 421, the reduction gear disk 46 and the driving gear 442 are meshed with each other; the adjusting part includes an adjusting screw 5, the adjusting screw 5 is rotatably connected in the adjusting groove 3, the clamping seat 31 is threadedly sleeved on the adjusting screw 5, and one end of the reciprocating screw 42 away from the driven gear 421 passes through the clamping seat 31 and is slidably connected thereto.

[0024] Through the arrangement of the above-mentioned structure, the driving motor 45 is turned on to drive the active clamping shaft 441 to rotate, and then drive the driven clamping shaft 44 and the hydraulic rod to rotate at the same time. At this time, the hydraulic rod rotates along the grinding arc plate 43, so as to grind the outer wall of the hydraulic rod, remove burrs and attachments on the outer wall of the hydraulic rod, improve its surface finish, significantly improve its performance and life, and ensure the stability and reliability of the entire hydraulic device; while the driven clamping shaft 44 rotates, the meshing action between the driven gear 421, the reduction gear plate 46 and the driving gear 442 will drive the reciprocating screw 42 to rotate synchronously, so that the moving seat 41 moves back and forth along the reciprocating screw 42 with the shielding ring 4, so that the entire hydraulic rod is comprehensively polished, which effectively improves the grinding efficiency.

[0025] Reference Figures 1-5 and Figure 8 The guide assembly includes a water tank 6, which is arranged in the processing table 1. A guide vane 61 is rotatably connected in the water tank 6. The rotating shaft of the guide vane 61 is connected to the driven clamp shaft 44 through a pulley group 62. A drainage box 63 is fixedly connected to the top of the shielding ring 4. Both sides of the inner wall of the shielding ring 4 are fixedly connected with water spray pipes 631. Two groups of water spray pipes 631 are symmetrically distributed on both sides above the grinding arc plate 43 along the center. The top of the water spray pipe 631 is connected to the bottom of the inner cavity of the drainage box 63. The side wall of the drainage box 63 is fixed and connected with a flow-pushing pipe 632. The other side of the flow-pushing pipe 632 is fixed and connected to the side wall of the drainage box 63. The end is connected with the inner cavity of the water storage tank 6; a suction groove 64 is opened in the movable seat 41, and guide grooves 641 are opened at equal intervals on the inner wall of the shielding ring 4, the suction groove 64 is connected with the inner cavity of the guide groove 641, and both sides of the suction groove 64 are fixed and connected with a suction pipe 642, and both sides of the water storage tank 6 are opened with a drainage groove 65, the other end of the suction pipe 642 is connected with the inner cavity of the drainage groove 65, and a filter residue plate 651 is fixedly connected in the drainage groove 65, and a sealing plate 652 is sealed and inserted at the end of the drainage groove 65, and the output end of the drainage groove 65 and the input end of the push flow pipe 632 are respectively located on both sides of the guide blade 61.

[0026] With the above structure, when the driven clamping shaft 44 rotates, the drive of the pulley set 62 will drive the guide vane 61 to rotate rapidly in the water storage tank 6. At this time, a thrust will be generated on the side close to the flow pushing pipe 632, causing the water flow in the water storage tank 6 to enter the drainage box 63 along the flow pushing pipe 632, and then drip onto the hydraulic rod during rotary grinding through the water spraying pipe 631, so as to cool and lubricate the grinding area of the hydraulic rod. First, it can take away the heat generated during grinding, reduce the surface temperature of the hydraulic rod, and prevent it from deforming due to overheating. Second, it can reduce the friction between the grinding arc plate 43 and the hydraulic rod, making the grinding smoother, and then ensuring the stability and durability of the hydraulic rod and the grinding arc plate 43; In addition, the continuously sprayed water flow can combine with the debris generated by grinding to achieve the function of dust reduction. At the same time, the water flow can wash away the metal powder and other debris generated during the grinding process, improving the cleanliness of the grinding area; At the same time, a suction force will be generated on the side of the water storage tank 6 close to the drainage groove 65 and transmitted to the suction groove 64 along the suction pipe 642, so that the water flow and debris that are thrown onto the inner wall of the grinding arc plate 43 during grinding are sucked into the suction groove 64 along the drainage groove 641, and finally, after being filtered by the slag filtering plate 651, they flow back into the water storage tank 6, so as to realize the collection of debris and the recycling of water flow, improving the energy-saving effect.

[0027] Refer to Figure 5 、 Figure 6 , wherein, a sliding groove 7 is formed in the driven clamping shaft 44, a top column 71 is slidably connected in the sliding groove 7, a circular groove 72 is formed in the mounting seat 2, a piston groove 73 is formed at the top of the circular groove 72, a piston plate 731 is slidably connected in the piston groove 73, a return spring 732 is fixedly connected between the top of the piston plate 731 and the inner top of the piston groove 73, the rotating shaft of the reduction gear disk 46 penetrates into the circular groove 72 and is fixedly connected with a magnetic plate 74, the magnetic plate 74 and the piston plate 731 are magnetically repulsive, a gas guide ring groove 75 is formed in the mounting seat 2, the driven clamping shaft 44 passes through the center of the gas guide ring groove 75, and the sliding groove 7 is communicated with the gas guide ring groove 75. The gas guide ring groove 75 is communicated with the inner top of the piston groove 73 through an air charging groove 733, and a one-way valve is arranged in the air charging groove 733; A suction pipe 734 is fixedly connected and communicated with the side wall of the piston groove 73, the other end of the suction pipe 734 is communicated with the upper part of the inner cavity of the water storage tank 6, and a one-way valve is arranged in the suction pipe 734.

[0028] It should be noted that the one-way valve in the air charging groove 733 can only allow the gas in the piston groove 73 to enter the gas guide ring groove 75; The gas in the suction pipe 734 can only allow the gas in the upper part of the inner cavity of the water storage tank 6 to enter the piston groove 73.

[0029] When the locking cam 731 is in the unlocking state, the locking cam 732 is in the unlocking state, and the locking cam 733 is in the unlocking state, so that the locking cam 733 is in the unlocking state, and the locking cam 734 is in the unlocking state, so that the locking cam 733 is unlocked and the locking cam 734 is in the unlocking state.

[0030] Reference Figure 2 Among them, the side wall of the air guide ring groove 75 is fixed and connected to a pressure relief pipe 8, and a solenoid valve is arranged in the pressure relief pipe 8; after the hydraulic rod is removed after grinding, the solenoid valve in the pressure relief pipe 8 is opened to discharge the gas filled in the air guide ring groove 75, so as to continue to stably clamp the new hydraulic rod.

[0031] Reference Figures 1-8 In the present invention, when in use, the hydraulic rod to be ground passes through the shielding ring 4 and is placed on the grinding arc plate 43, and then one end of the hydraulic rod is against the driven clamping shaft 44, and then the pitch adjusting screw 5 is rotated, so that the clamping seat 31 moves with the active clamping shaft 441 to the side close to the hydraulic rod, and finally the hydraulic rod is clamped and fixed between the active clamping shaft 441 and the driven clamping shaft 44; next, the driving motor 45 is turned on to drive the active clamping shaft 441 to rotate, and then the driven clamping shaft 44 and the hydraulic rod are rotated at the same time, and the hydraulic rod rotates against the grinding arc plate 43 , thereby grinding the outer wall of the hydraulic rod, removing burrs and attachments on the outer wall of the hydraulic rod, improving its surface finish, significantly improving its performance and life, and ensuring the stability and reliability of the entire hydraulic device; while the driven clamp shaft 44 rotates, the meshing action between the driven gear 421, the reduction gear plate 46 and the driving gear 442 will drive the reciprocating screw 42 to rotate synchronously, so that the moving seat 41 moves back and forth along the reciprocating screw 42 with the shielding ring 4, so that the entire hydraulic rod is fully ground, effectively improving the grinding efficiency.

[0032] When the driven clamping shaft 44 rotates, the driving action of the pulley set 62 will drive the guide vane 61 to rotate rapidly in the water storage tank 6. At this time, a thrust will be generated on one side close to the flow pushing pipe 632, causing the water flow in the water storage tank 6 to enter the drainage box 63 along the flow pushing pipe 632, and then drip onto the hydraulic rod during rotary grinding from the water spraying pipe 631, so as to cool and lubricate the grinding area of the hydraulic rod. Firstly, it can take away the heat generated during grinding and reduce the surface temperature of the hydraulic rod. Secondly, it can reduce the friction between the grinding arc plate 43 and the hydraulic rod, making the grinding smoother, and then ensuring the stability and durability of the hydraulic rod and the grinding arc plate 43. In addition, the continuously sprayed water flow can combine with the debris generated by grinding to achieve the dust reduction effect. At the same time, the water flow can wash away the metal powder and other debris generated during the grinding process, improving the cleanliness of the grinding area. At the same time, a suction force will be generated on one side of the water storage tank 6 close to the drainage groove 65 and transmitted to the suction groove 64 along the suction pipe 642, causing the water flow and debris that are thrown onto the inner wall of the grinding arc plate 43 during grinding to be sucked into the suction groove 64 along the drainage groove 641, and finally, after being filtered by the slag filtering plate 651, it will flow back to the water storage tank 6, so as to achieve the collection of debris and the recycling of water flow, improving the energy-saving effect.

[0033] In addition, during the rotation of the reduction gear disc 46, by using the repulsive effect between the magnetic plate 74 and the piston plate 731, when the two are in the repulsive area, the piston plate 731 will move towards the side of the compression return spring 732, so as to compress the gas in the piston groove 73 and open the one-way valve in the air charging groove 733, causing the gas to enter the sliding groove 7 along the air charging groove 733 and the air guiding ring groove 75, making the ejector pin 71 move towards the hydraulic rod, so as to apply an extrusion force to the hydraulic rod and fix it more stably between the driving clamping shaft 441 and the driven clamping shaft 44, preventing it from skewing and improving the grinding effect. Subsequently, when the magnetic plate 74 and the piston plate 731 are out of the repulsive area, the return spring 732 will pull the piston plate 731 back to its original position, generating a suction force in the piston groove 73 and opening the one-way valve in the air extraction pipe 734, causing the suction force to be transmitted to the water storage tank 6, thus improving the suction effect in the water storage tank 6.

[0034] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered by the protection scope of the present invention.

Claims

1. An automatic grinding device for hydraulic device accessories, comprising a processing table (1), characterized in that: One side of the processing table (1) is fixedly connected to a mounting seat (2), and the other side of the processing table (1) is provided with a distance adjustment groove (3), a clamping seat (31) is slidably connected in the distance adjustment groove (3), and a distance adjustment portion for driving the clamping seat (31) to move is provided in the distance adjustment groove (3), and further comprises: A grinding assembly, the grinding assembly being arranged between the mounting seat (2) and the clamping seat (31), and being used for grinding the hydraulic fittings; A flow guide component is arranged in a processing table (1), and is used to cool and remove dust from an area where a hydraulic accessory is being polished.

2. The automatic grinding device for hydraulic device accessories according to claim 1 is characterized in that: The grinding assembly comprises a shielding ring (4), a movable seat (41) is fixedly connected to the bottom of the shielding ring (4), a reciprocating screw (42) is rotatably connected to the side wall of the mounting seat (2), the movable seat (41) is threadedly sleeved on the reciprocating screw (42), and the bottom of the movable seat (41) slides in contact with the surface of the processing table (1), a grinding arc plate (43) is fixedly connected to the inner wall of the shielding ring (4), a driven clamping shaft (44) is rotatably connected to the mounting seat (2), an active clamping shaft (441) is rotatably connected to the clamping seat (31), a driving motor (45) is fixedly connected to the side wall of the clamping seat (31), and an output shaft of the driving motor (45) is fixedly connected to the end of the active clamping shaft (441).

3. The automatic grinding device for hydraulic device accessories according to claim 2, characterized in that: The driven clamping shaft (44) and the active clamping shaft (441) are aligned with each other, the center of the shielding ring (4) coincides with the center of the grinding arc plate (43), and the center of the grinding arc plate (43) is on the central axis of the driven clamping shaft (44).

4. The automatic grinding device for hydraulic device accessories according to claim 2, characterized in that: A driving gear (442) is fixedly connected to the side wall of the driven clamping shaft (44), a reduction gear plate (46) is rotatably connected to the side wall of the mounting seat (2), and a driven gear (421) is fixedly connected to one end of the reciprocating screw rod (42) close to the mounting seat (2), and the driven gear (421), the reduction gear plate (46) and the driving gear (442) are meshedly connected to each other.

5. The automatic grinding device for hydraulic device accessories according to claim 2, characterized in that: The pitch adjusting portion comprises a pitch adjusting screw (5), the pitch adjusting screw (5) being rotatably connected in the pitch adjusting slot (3), the clamping seat (31) being threadedly sleeved on the pitch adjusting screw (5), and the end of the reciprocating screw (42) away from the driven gear (421) passing through the clamping seat (31) and being slidably connected thereto.

6. The automatic grinding device for hydraulic device accessories according to claim 4, characterized in that: The guide assembly comprises a water tank (6), the water tank (6) being arranged in the processing table (1), a guide vane (61) being rotatably connected in the water tank (6), a rotating shaft of the guide vane (61) being transmission-connected to a driven clamp shaft (44) via a belt pulley group (62), a drainage box (63) being fixedly connected to the top of the shielding ring (4), water spray pipes (631) being fixedly connected to both sides of the inner wall of the shielding ring (4), two groups of water spray pipes (631) being symmetrically distributed on both sides above the grinding arc plate (43) along the center, and the top of the water spray pipe (631) being connected to the bottom of the inner cavity of the drainage box (63), a flow-pushing pipe (632) being fixedly connected to the side wall of the drainage box (63), and the other end of the flow-pushing pipe (632) being connected to the inner cavity of the water tank (6).

7. The automatic grinding device for hydraulic device accessories according to claim 6, characterized in that: A suction groove (64) is provided in the movable seat (41), and flow guide grooves (641) are provided on the inner wall of the shielding ring (4) at equal intervals. The suction grooves (64) are connected to the inner cavity of the flow guide groove (641). Both sides of the suction groove (64) are fixed and connected to a suction pipe (642). Both sides of the water storage tank (6) are provided with a drainage groove (65), the other end of the suction pipe (642) is connected to the inner cavity of the drainage groove (65), and a filter residue plate (651) is fixedly connected to the drainage groove (65). A sealing plate (652) is sealed and plugged at the end of the drainage groove (65), and the output end of the drainage groove (65) and the input end of the flow pushing pipe (632) are respectively located on both sides of the guide blade (61).

8. The automatic grinding device for hydraulic device accessories according to claim 6, characterized in that: The driven clamp shaft (44) is provided with a sliding groove (7), a top column (71) is slidably connected to the sliding groove (7), a circular groove (72) is provided in the mounting seat (2), a piston groove (73) is provided at the top of the circular groove (72), a piston plate (731) is slidably connected to the piston groove (73), a return spring (732) is fixedly connected between the top of the piston plate (731) and the top of the piston groove (73), and the rotating shaft of the reduction gear plate (46) passes through the circular groove. A magnetic plate (74) is fixedly connected to the piston plate (72), the magnetic plate (74) and the piston plate (731) are magnetically repelled from each other, an air guide ring groove (75) is provided in the mounting seat (2), the driven clamping shaft (44) passes through the center of the air guide ring groove (75), and the sliding groove (7) is connected to the air guide ring groove (75), the air guide ring groove (75) and the top of the inner cavity of the piston groove (73) are connected via an air charging groove (733), and a one-way valve is provided in the air charging groove (733).

9. The automatic grinding device for hydraulic device accessories according to claim 8, characterized in that: The side wall of the piston groove (73) is fixed and connected to an air extraction pipe (734); the other end of the air extraction pipe (734) is connected to the upper part of the inner cavity of the water storage tank (6); and a one-way valve is arranged in the air extraction pipe (734).

10. The automatic grinding device for hydraulic device accessories according to claim 8, characterized in that: The side wall of the air guide ring groove (75) is fixed and connected to a pressure relief pipe (8), and a solenoid valve is arranged in the pressure relief pipe (8).

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