Precise grinding device for automobile parts

Abstract

The invention is suitable for the technical field of grinding, and provides an automobile part precise grinding device which comprises a main body frame and a plurality of sets of control seats, the control seats are slidably installed on the main body frame, and the main body frame is further provided with fixing claw discs corresponding to the control seats in position; three groups of grinding mechanisms are arranged on each group of control seats; and the grinding mechanism comprises a lifting block, a supporting ring, a rotating box and a precise cooling type grinding assembly used for synchronously spraying cooling liquid, and a driving assembly used for driving the supporting ring to rotate is arranged on the lifting block. The problems that in the prior art, the supply mode of cooling liquid is extensive, a grinding area cannot be precisely cooled, the axis of a part and the axis of a main shaft of a grinding machine possibly generate tiny deviation through manual clamping, cylindricity errors are caused, and the machining quality of automobile parts is affected are solved.

Description

Technical Field

[0001] The invention relates to the technical field of grinding, in particular to a precision grinding device for automobile parts. Background Art

[0002] With the rapid development of the global automobile industry, competition in the automobile market is becoming increasingly fierce. Consumers have higher and higher expectations for automobile performance, safety, comfort and durability. As the key support for the overall performance of automobiles, the quality and precision of automobile parts directly affect the overall quality of automobiles. For example, key engine parts such as crankshafts, camshafts, gears in transmissions, and brake discs in brake systems, their dimensional accuracy, surface roughness, shape accuracy and other parameters must be controlled within extremely strict tolerances. High-precision parts can effectively reduce vibration and noise during the operation of automobiles, reduce wear, improve transmission efficiency, and thus improve fuel economy and the overall reliability of vehicles.

[0003] When grinding cylindrical parts (such as shafts, sleeves, and supports), the existing grinding devices use a relatively rough cooling method, which cannot accurately cool the grinding area. In addition, manual clamping may cause a slight offset between the axis of the part and the axis of the grinder spindle, thereby causing cylindrical errors and affecting the processing quality of automotive parts. Therefore, in view of the above situation, it is urgent to provide a precision grinding device for automotive parts to overcome the shortcomings in current practical applications. Summary of the invention

[0004] The object of the present invention is to provide a precision grinding device for automobile parts, aiming to solve the problems in the above-mentioned background technology.

[0005] The present invention is achieved in that a precision grinding device for automobile parts comprises: A main frame and a control seat, wherein the control seat is slidably mounted on the main frame in multiple groups, and the main frame is also provided with a fixed claw plate corresponding to the position of the control seat; Grinding mechanism, three groups of grinding mechanisms are arranged on each control seat, and the control seat is equipped with a lifting mechanism for driving the three groups of grinding mechanisms to move independently. During processing, any two groups of grinding mechanisms are used to fix the cylindrical parts, and the other group of grinding mechanisms is used to grind the fixed cylindrical parts; The grinding mechanism includes a lifting block, a support ring, a rotating box and a precision cooling grinding component for synchronously spraying coolant. The lifting block is slidably installed on the control seat, and the lifting block is connected to the lifting mechanism in the control seat. The support ring is fixedly installed on the lifting block, the rotating box is rotatably installed in the support ring, and the lifting block is provided with a driving component for driving the support ring to rotate. The precision cooling grinding component is evenly arranged in multiple groups in the circumferential direction of the rotating box.

[0006] As a further solution of the present invention: a liquid guide cavity and an air guide cavity are respectively opened in the support ring, and a connection hole group is opened on the lifting block, and the connection hole group includes a liquid guide hole connected to the liquid guide cavity and an air guide hole connected to the air guide cavity.

[0007] As a further solution of the present invention: the rotating box is a circular ring structure, and a slot rotatably connected to the supporting ring is provided on the side wall of the rotating box.

[0008] As a further solution of the present invention: the precision cooling grinding assembly comprises: An introduction tube, which is fixedly mounted on the side wall of the rotating box and is connected to the liquid guiding cavity; A translation tube connected to the introduction tube, wherein the translation tube is slidably mounted on the introduction tube, and a translation assembly for driving the translation tube to move is arranged in the rotating box; A support tube connected to the translation tube, the support tube is slidably installed in the translation tube, and a grinding block is fixedly installed at one end of the support tube away from the translation tube, a liquid spraying hole is opened on the grinding block, and a connecting cavity for connecting the support tube with the liquid spraying hole is provided in the grinding block; A flow control block, wherein the flow control block is fixedly installed in the translation tube, and a blocking block for blocking the flow control block is also provided at one end of the support tube close to the introduction tube; And a second spring for elastically supporting the support tube, one end of the second spring is fixedly connected to the flow control block, and the other end of the second spring is fixedly connected to the support tube.

[0009] As a further solution of the present invention: the translation assembly includes: A linkage frame, wherein the linkage frame is fixedly mounted on the translation tube; A control box fixedly mounted in the rotating box, wherein a piston plate 1 is slidably mounted in the control box, and a spring 1 for elastically supporting the piston plate 1 is arranged in the control box; A linkage rod slidably mounted on the control box, one end of the linkage rod being fixedly connected to the piston plate, and the other end of the linkage rod being fixedly connected to the linkage frame; And a shunt pipe, one end of which is communicated with the control box, and the other end of which is fixedly mounted on the side wall of the rotating box and communicated with the air guide cavity.

[0010] As a further solution of the present invention: the driving assembly includes a motor arranged in the lifting block, a driving gear is fixedly mounted on the output shaft of the motor, and an outer gear ring meshing with the driving gear is fixedly mounted on the bottom of the rotating box.

[0011] As a further solution of the present invention: it also includes an auxiliary component for timely cleaning debris on the surface of cylindrical parts.

[0012] As a further solution of the present invention: the auxiliary component comprises: A support box, the support box is fixedly mounted on the grinding block, and a piston plate three is slidably mounted in the support box; Push rod 2, the push rod 2 is fixedly mounted on the piston plate 3, and a round hole slidably connected to the push rod 2 is opened on the side wall of the support box; A scraper strip, the scraper strip being fixedly mounted on an end of the push rod 2 away from the piston plate 3; A spring four for elastically pressing the piston plate three, wherein the spring four is located in the support box; And a pneumatic component for driving the piston plate to perform three intermittent movements.

[0013] As a further solution of the present invention: the pneumatic component comprises: A compression box fixedly mounted on the rotating box, wherein a piston plate 2 is slidably mounted in the compression box, and a spring 3 for elastically pressing the piston plate 2 is also arranged in the compression box; A telescopic tube, which is used to connect the compression box and the support box; wherein the compression box and the support box are both pre-filled with gas; A push rod 1 is slidably mounted on the compression box, one end of the push rod 1 is fixedly connected to the piston plate 2, and the other end of the push rod 1 is rotatably mounted with a guide wheel; And a push block used for cooperating with the guide wheel to push the push rod to move, and multiple groups of the push blocks are fixedly installed on the support ring.

[0014] Compared with the prior art, the invention has the following beneficial effects: the control seat is moved to the highest point by using the lifting mechanism 1, so that one end of the cylindrical component is fixed to the fixed claw disk, and then the lifting mechanism 1 is used to drive the control seat to move to one side of the fixed claw disk, so that the other end of the cylindrical component passes through the rotating box, and any two of the grinding mechanisms can be used to fix the cylindrical component. After the cylindrical component is fixed, the control seat is moved up a distance again, so that the cylindrical component is separated from the fixed claw disk, and the remaining grinding mechanism can be used to grind the cylindrical component. Specifically, the driving assembly in the group of grinding mechanisms drives the rotating box to rotate in the support ring, and the cooling liquid can be accurately sprayed on the grinding position while the precision cooling grinding assembly is used to realize the grinding process, so that the cooling effect is better. The lifting mechanism 2 can adjust the fixed position, that is, the grinding position, by driving the grinding mechanism to move. Any two of the three grinding mechanisms are used to fix the cylindrical component, so that the axis of the cylindrical component is in line with the axis around which the precision cooling grinding assembly rotates, thereby effectively improving the grinding accuracy. The present invention, through the setting of the grinding mechanism, avoids the problem that the existing grinding device, when grinding cylindrical parts (such as shafts, sleeves and supports), has a relatively rough supply method of coolant and cannot accurately cool the grinding area, and manual clamping may cause a slight offset between the axis of the part and the axis of the grinder spindle, thereby causing cylindricity errors and affecting the processing quality of automobile parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the grinding mechanism in the present invention.

[0017] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at point A in the middle.

[0018] Figure 4 for Figure 2 Schematic diagram of the structure viewed from above.

[0019] Figure 5 for Figure 2 Schematic diagram of the cross-sectional structure of the middle support ring.

[0020] Figure 6 for Figure 5 Schematic diagram of the enlarged structure at point B in the middle.

[0021] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure of the rotating box.

[0022] Figure 8It is a schematic diagram of the structure of the precision cooling grinding assembly in the present invention.

[0023] Fig. 9 for Figure 7 Schematic diagram of the cross-sectional structure of the control box.

[0024] Fig.10 It is a schematic diagram of the cross-sectional structure of the support tube and the translation tube in the present invention.

[0025] Fig.11 for Fig.10 Schematic diagram of the enlarged structure at point C in the middle.

[0026] Fig.12 It is a schematic diagram of the structure of the auxiliary components in the present invention.

[0027] In the accompanying drawings: 1-main frame, 2-control seat, 3-fixed claw plate, 4-support ring, 5-rotating box, 6-lifting block, 7-outer gear ring, 8-push block, 9-compression box, 10-grinding block, 11-push rod one, 12-guide wheel, 13-telescopic tube, 14-support box, 15-scraper, 16-control box, 17-support tube, 18-translation tube, 19-driving gear, 20-connecting hole group, 21-introduction tube, 22-shunt tube, 23-liquid guide cavity, 24-air guide cavity, 25-push rod two, 26-linkage rod, 27-linkage frame, 28-piston plate one, 29-spring one, 30-flow control block, 31-spring two, 32-blocking block, 33-piston plate two, 34-spring three, 35-spring four, 36-piston plate three. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The specific implementation of the present invention is described in detail below in combination with specific embodiments.

[0029] See also Figure 1-Figure 12 , an embodiment of the present invention provides a precision grinding device for automobile parts, the precision grinding device for automobile parts comprising: A main frame 1 and a control seat 2, wherein the control seat 2 is slidably mounted in multiple groups on the main frame 1, and the main frame 1 is also provided with a fixed claw plate 3 corresponding to the position of the control seat 2; wherein the main frame 1 may be provided with a lifting mechanism 1 for driving the multiple groups of control seats 2 to move independently, and the lifting mechanism 1 and the fixed claw plate 3 may both adopt existing public technologies; Grinding mechanism, three groups of grinding mechanisms are arranged on each group of control seats 2, and the control seat 2 is equipped with a lifting mechanism 2 for driving the three groups of grinding mechanisms to move independently. During processing, any two groups of grinding mechanisms are used to fix the cylindrical parts, and the other group of grinding mechanisms is used to grind the fixed cylindrical parts; The grinding mechanism includes a lifting block 6, a support ring 4, a rotating box 5 and a precision cooling grinding component for synchronously spraying coolant. The lifting block 6 is slidably installed on the control seat 2, and the lifting block 6 is connected to the lifting mechanism in the control seat 2. The support ring 4 is fixedly installed on the lifting block 6, the rotating box 5 is rotatably installed in the support ring 4, and the lifting block 6 is provided with a driving component for driving the support ring 4 to rotate. The precision cooling grinding component is evenly arranged in multiple groups in the circumferential direction of the rotating box 5.

[0030] In the embodiment of the present invention, aqueous coolant is preferably used. When in use, the control seat 2 is moved to the highest point by using the lifting mechanism 1, so that one end of the cylindrical component is fixed to the fixed claw plate 3, and then the lifting mechanism 1 is used to drive the control seat 2 to move to one side of the fixed claw plate 3, so that the other end of the cylindrical component passes through the rotating box 5, and any two sets of grinding mechanisms can be used to fix the cylindrical component. After the cylindrical component is fixed, the control seat 2 is moved up a distance again, so that the cylindrical component is separated from the fixed claw plate 3, and the remaining set of grinding mechanisms can be used to realize the grinding of the cylindrical component. Specifically, the driving component in this group of grinding mechanisms drives the rotating box 5 to rotate in the support ring 4, and while the precision cooling grinding component is used to realize the grinding process, the coolant can be accurately sprayed on the grinding position, and the cooling effect is better. The lifting mechanism 2 can adjust the fixed position, i.e., the grinding position, by driving the grinding mechanism to move. Any two of the three grinding mechanisms can be used to fix the cylindrical parts, so that the axis of the cylindrical parts is in line with the axis around which the precision cooling grinding assembly rotates, thereby effectively improving the grinding accuracy. Both the lifting mechanism 1 and the lifting mechanism 2 can adopt electric telescopic rods, electric guide rails, or screw lifting mechanisms, which are not specifically limited here. Compared with the prior art, the present invention avoids the problem that the existing grinding device, through the setting of the grinding mechanism, has a relatively rough supply method of coolant when grinding cylindrical parts (such as shafts, sleeves, and supports), and cannot accurately cool the grinding area. Manual clamping may cause a slight offset between the axis of the part and the axis of the grinder spindle, thereby causing a cylindricity error and affecting the processing quality of automotive parts.

[0031] In one embodiment of the present invention, see Figure 1-Figure 12The support ring 4 is provided with a liquid guide cavity 23 and an air guide cavity 24, respectively. The lifting block 6 is provided with a connection hole group 20, and the connection hole group 20 includes a liquid guide hole connected to the liquid guide cavity 23 and an air guide hole connected to the air guide cavity 24; The rotating box 5 is a circular ring structure, and a slot rotatably connected to the supporting ring 4 is provided on the side wall of the rotating box 5; The precision cooling grinding assembly comprises: An introduction tube 21, wherein the introduction tube 21 is fixedly mounted on the side wall of the rotating box 5, and the introduction tube 21 is connected to the liquid guiding cavity 23; A translation tube 18 connected to the introduction tube 21, wherein the translation tube 18 is slidably mounted on the introduction tube 21, and a translation assembly for driving the translation tube 18 to move is disposed in the rotation box 5; A support tube 17 connected to the translation tube 18, wherein the support tube 17 is slidably mounted in the translation tube 18, and a grinding block 10 is fixedly mounted on one end of the support tube 17 away from the translation tube 18, wherein a liquid spraying hole is provided on the grinding block 10, and a connecting cavity for connecting the support tube 17 with the liquid spraying hole is provided in the grinding block 10; A flow control block 30, wherein the flow control block 30 is fixedly installed in the translation tube 18, and a blocking block 32 for blocking the flow control block 30 is also provided at one end of the support tube 17 close to the introduction tube 21; and a second spring 31 for elastically supporting the support tube 17, wherein one end of the second spring 31 is fixedly connected to the flow control block 30, and the other end of the second spring 31 is fixedly connected to the support tube 17; The translation assembly comprises: A linkage frame 27, wherein the linkage frame 27 is fixedly mounted on the translation tube 18; A control box 16 fixedly mounted in the rotating box 5, wherein a piston plate 28 is slidably mounted in the control box 16, and a spring 29 for elastically supporting the piston plate 28 is provided in the control box 16; A linkage rod 26 slidably mounted on the control box 16, one end of the linkage rod 26 is fixedly connected to a piston plate 28, and the other end of the linkage rod 26 is fixedly connected to a linkage frame 27; and a shunt pipe 22, one end of which is communicated with the control box 16, and the other end of which is fixedly mounted on the side wall of the rotating box 5 and communicated with the air guide cavity 24; The driving assembly includes a motor disposed in the lifting block 6 , a driving gear 19 is fixedly mounted on the output shaft of the motor, and an outer gear ring 7 meshing with the driving gear 19 is fixedly mounted on the bottom of the rotating box 5 .

[0032] In this embodiment, when in use, the connecting hole group 20 is connected to the external gas source and the coolant supply device respectively, and the gas is introduced first. After the gas passes through the gas guide cavity 24 and enters the shunt tube 22, the shunt tube 22 guides the gas into the control box 16, thereby pushing the piston plate 128 to move. The piston plate 128, the linkage rod 26 and the linkage frame 27 can drive the translation tube 18 to move. The translation tube 18 can use the flow control block 30 to drive the spring 2 31 and the support tube 17 to move, so that the support tube 17 drives the grinding block 10 to press against the cylindrical component. If the cylindrical component needs to be fixed, the gas pressure is increased so that the spring 2 31 is compressed between the flow control block 30 and the support tube 17, thereby increasing the pressing force of the grinding block 10, and realizing the pressing and fixing of the cylindrical component. At the same time, after the spring 2 31 is compressed, the blocking block 32 will be pressed into the flow control block 30 to block the flow control block 30. At this time, the coolant is introduced again, and the coolant entering the introduction pipe 21 from the liquid guide cavity 23 will be blocked in the introduction pipe 21 by the blocking block 32. In the grinding mechanism that needs to be ground, the gas pressure is appropriately reduced (that is, the blocking block 32 will not block the flow control block 30), so that the coolant in the introduction pipe 21 will pass through the flow control block 30, the translation tube 18 and the support tube 17 into the connecting cavity of the grinding block 10, and finally sprayed between the grinding block 10 and the cylindrical component through the spray hole on the grinding block 10, thereby improving the cooling effect. The motor, the driving gear 19 and the outer gear ring 7 are used to drive the rotating box 5 to rotate, thereby driving the grinding block 10 to rotate around the cylindrical component to complete the grinding process; By using the coordinated arrangement of the blocking block 32, the second spring 31 and the flow control block 30, the three grinding mechanisms can be fed with gas and coolant at the same time, making the three grinding mechanisms more coordinated. During the grinding process, by adjusting the gas pressure, the pressure of the grinding block 10 during grinding can be adjusted. At the same time, the working states of the three groups of grinding mechanisms can be switched, that is, the switching between the fixing function and the grinding function, which is convenient for grinding the top, bottom and middle of cylindrical parts, and is more practical.

[0033] In one embodiment of the present invention, see Figure 1-Figure 12 , also includes auxiliary components for timely cleaning of debris from the surface of cylindrical parts; The auxiliary components include: A support box 14, wherein the support box 14 is fixedly mounted on the grinding block 10, and a piston plate 36 is slidably mounted in the support box 14; A second push rod 25, wherein the second push rod 25 is fixedly mounted on the third piston plate 36, and a round hole slidably connected to the second push rod 25 is opened on the side wall of the support box 14; A scraper strip 15, wherein the scraper strip 15 is fixedly mounted on an end of the push rod 25 away from the piston plate 3 36; A spring four 35 for elastically pressing the piston plate three 36, wherein the spring four 35 is located in the support box 14; and a pneumatic assembly for driving the piston plate three 36 to intermittently move; The pneumatic assembly comprises: A compression box 9 fixedly mounted on the rotating box 5, wherein a second piston plate 33 is slidably mounted in the compression box 9, and a third spring 34 for elastically pressing the second piston plate 33 is also arranged in the compression box 9; The telescopic tube 13 is used for connecting the compression box 9 and the support box 14; wherein the compression box 9 and the support box 14 are both pre-filled with gas; A push rod 11 is slidably mounted on the compression box 9, one end of the push rod 11 is fixedly connected to the piston plate 2 33, and the other end of the push rod 11 is rotatably mounted with a guide wheel 12; And a push block 8 for cooperating with the guide wheel 12 to push the push rod 11 to move, and multiple groups of the push blocks 8 are fixedly installed on the support ring 4.

[0034] In the present embodiment, the rotating box 5 will drive the guide wheel 12 to rotate synchronously during the rotation process. When the guide wheel 12 is pressed onto the push block 8, the guide wheel 12 will push the push rod 11 to move into the compression box 9. The push rod 11 can drive the gas in the compression box 9 to enter the support box 14 through the telescopic tube 13 by driving the piston plate 2 33 to move, thereby pushing the piston plate 3 36 in the support box 14 to move. The piston plate 3 36 can drive the scraper 15 to press against the cylindrical component through the push rod 25. Through the reset action of the spring 4 35 and the spring 3 34, when the guide wheel 12 is separated from the push block 8, the scraper 15 will reset, thereby realizing intermittent contact between the scraper 15 and the cylindrical component, effectively scraping off the debris on the surface of the cylindrical component. By adjusting the length of the protruding part of the push block 8, the contact time of the scraper 15 and the cylindrical component can be adjusted. In the actual production process, it can be set according to needs.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "slide", "rotate", "fix", "have" and the like should be understood in a broad sense, for example, it can be a welding connection, a bolt connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A precision grinding device for automobile parts, comprising a main frame and a control seat, wherein the control seat is slidably mounted on the main frame in multiple groups, and the main frame is also provided with a fixed claw plate corresponding to the position of the control seat, characterized in that: Also includes: Grinding mechanism, three groups of grinding mechanisms are arranged on each control seat, and the control seat is equipped with a lifting mechanism for driving the three groups of grinding mechanisms to move independently. During processing, any two groups of grinding mechanisms are used to fix the cylindrical parts, and the other group of grinding mechanisms is used to grind the fixed cylindrical parts; The grinding mechanism includes a lifting block, a support ring, a rotating box and a precision cooling grinding component for synchronously spraying coolant. The lifting block is slidably installed on the control seat, and the lifting block is connected to the lifting mechanism in the control seat. The support ring is fixedly installed on the lifting block, the rotating box is rotatably installed in the support ring, and the lifting block is provided with a driving component for driving the support ring to rotate. The precision cooling grinding component is evenly arranged in multiple groups in the circumferential direction of the rotating box.

2. The automobile parts precision grinding device according to claim 1, characterized in that: The support ring is provided with a liquid guiding cavity and an air guiding cavity respectively, and the lifting block is provided with a connection hole group, and the connection hole group includes a liquid guiding hole connected with the liquid guiding cavity and an air guiding hole connected with the air guiding cavity.

3. The automobile parts precision grinding device according to claim 1, characterized in that: The rotating box is a circular ring structure, and a slot rotatably connected to the supporting ring is provided on the side wall of the rotating box.

4. The automobile parts precision grinding device according to claim 2, characterized in that: The precision cooling grinding assembly comprises: An introduction tube, which is fixedly mounted on the side wall of the rotating box and is connected to the liquid guiding cavity; A translation tube connected to the introduction tube, wherein the translation tube is slidably mounted on the introduction tube, and a translation assembly for driving the translation tube to move is arranged in the rotating box; A support tube connected to the translation tube, the support tube is slidably installed in the translation tube, and a grinding block is fixedly installed at one end of the support tube away from the translation tube, a liquid spraying hole is opened on the grinding block, and a connecting cavity for connecting the support tube with the liquid spraying hole is provided in the grinding block; A flow control block, wherein the flow control block is fixedly installed in the translation tube, and a blocking block for blocking the flow control block is also provided at one end of the support tube close to the introduction tube; And a second spring for elastically supporting the support tube, one end of the second spring is fixedly connected to the flow control block, and the other end of the second spring is fixedly connected to the support tube.

5. The automobile parts precision grinding device according to claim 4, characterized in that: The translation assembly comprises: A linkage frame, wherein the linkage frame is fixedly mounted on the translation tube; A control box fixedly mounted in the rotating box, wherein a piston plate 1 is slidably mounted in the control box, and a spring 1 for elastically supporting the piston plate 1 is arranged in the control box; A linkage rod slidably mounted on the control box, one end of the linkage rod being fixedly connected to the piston plate, and the other end of the linkage rod being fixedly connected to the linkage frame; And a shunt pipe, one end of which is communicated with the control box, and the other end of which is fixedly mounted on the side wall of the rotating box and communicated with the air guide cavity.

6. The automobile parts precision grinding device according to claim 1, characterized in that: The driving assembly comprises a motor arranged in the lifting block, a driving gear is fixedly mounted on the output shaft of the motor, and an outer gear ring meshing with the driving gear is fixedly mounted on the bottom of the rotating box.

7. The automobile parts precision grinding device according to claim 4, characterized in that: Also included are auxiliary components for timely cleaning of debris from the surface of cylindrical parts.

8. The automobile parts precision grinding device according to claim 7, characterized in that: The auxiliary components include: A support box, the support box is fixedly mounted on the grinding block, and a piston plate three is slidably mounted in the support box; Push rod 2, the push rod 2 is fixedly mounted on the piston plate 3, and a round hole slidably connected to the push rod 2 is opened on the side wall of the support box; A scraper strip, the scraper strip being fixedly mounted on an end of the push rod 2 away from the piston plate 3; A spring four for elastically pressing the piston plate three, wherein the spring four is located in the support box; And a pneumatic component for driving the piston plate to perform three intermittent movements.

9. The automobile parts precision grinding device according to claim 8, characterized in that: The pneumatic assembly comprises: A compression box fixedly mounted on the rotating box, wherein a piston plate 2 is slidably mounted in the compression box, and a spring 3 for elastically pressing the piston plate 2 is also arranged in the compression box; A telescopic tube, which is used to connect the compression box and the support box; wherein the compression box and the support box are both pre-filled with gas; A push rod 1 is slidably mounted on the compression box, one end of the push rod 1 is fixedly connected to the piston plate 2, and the other end of the push rod 1 is rotatably mounted with a guide wheel; And a push block used for cooperating with the guide wheel to push the push rod to move, and multiple groups of the push blocks are fixedly installed on the support ring.

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