High-precision grinding device for metal parts

Abstract

The invention relates to the field of metal part machining equipment, in particular to a high-precision metal part polishing device which comprises an operation table, and a clamping unit for clamping and rotating a part and a polishing unit are arranged on the operation table. The grinding unit comprises a polishing frame slidably connected with the operation table, the polishing frame is connected with a sliding barrel through a telescopic piece, a plurality of slidable polishing blocks are arranged in the sliding barrel, an outward pushing assembly is arranged in the sliding barrel to push the polishing blocks outwards to make contact with the parts, and therefore multi-point polishing of the parts is achieved in a self-adaptive mode. In addition, a water collecting groove is formed in the surface of the operation table, the outward pushing assembly comprises a water pump and a water supply pipe, and the water supply pipe is connected between the water pump and the sliding barrel to achieve cooling and cleaning functions. The polishing device achieves the effects of improving the polishing precision and prolonging the service life of equipment.

Description

Technical Field

[0001] The present application relates to the technical field of parts processing, and in particular to a high-precision grinding device for metal parts. Background Art

[0002] During the processing of metal parts, some rough areas such as burrs will be produced. Generally, they need to be polished with sandpaper or a polishing plate to make the surface of high-precision parts smooth. In order to improve work efficiency, some standard parts can also be automatically polished with a grinding device.

[0003] The grinding device in the related art often includes an operating table, on which a clamping unit for clamping and rotating the parts and a grinding unit for grinding the parts are arranged. The grinding unit can be moved relative to the operating table to achieve uniform grinding of all parts of the parts.

[0004] With respect to the above-mentioned related technologies, the inventors believe that the following defects exist: when the component is a structure with a flat side wall such as a cylinder, the grinding plate can stably fit the surface of the component for grinding, but when the side wall of the component is a curved surface, it is necessary to first process a grinding plate corresponding to the curved surface and then replace it. That is, the grinding device in the related technology cannot adaptively adjust to the surface curve of the component, so it needs to be improved. Summary of the invention

[0005] In order to improve the adaptability to parts with curved surfaces, the present application provides a high-precision grinding device for metal parts.

[0006] The present application provides a high-precision grinding device for metal parts, which adopts the following technical solution: A high-precision grinding device for metal parts comprises an operating table, the operating table is provided with a clamping unit for clamping and rotating the parts and a grinding unit for grinding the parts, the grinding unit comprises a polishing frame, the polishing frame is slidably connected to the operating table, and a polishing drive assembly for driving the polishing frame to slide is provided between the polishing frame and the operating table, the polishing frame is connected to a slide cylinder through a telescopic part, a plurality of polishing blocks are provided inside the slide cylinder, and the plurality of polishing blocks are slidably connected to the slide cylinder, and a push-out assembly for pushing the plurality of polishing blocks outwards to abut against the parts is provided inside the slide cylinder.

[0007] By adopting the above technical solution, the high-precision grinding device for metal parts can realize efficient and accurate grinding of parts with different shapes and surface characteristics. Specifically: The clamping unit on the operating table can stably fix and rotate the parts to ensure stability during the grinding process.

[0008] The sliding connection between the polishing frame and the operating table and the design of its drive assembly enable the polishing unit to move flexibly on the operating table to achieve uniform polishing of all parts of the component.

[0009] The multiple polishing blocks in the slide are pushed toward the surface of the component through the push-out assembly, so that the multiple polishing blocks can fit closely to the surfaces of components of different shapes, especially the curved parts, and can adaptively realize multi-point polishing, thereby improving the grinding quality and efficiency.

[0010] The use of telescopic parts further enhances the position adjustment capability of the polishing frame, allowing the polishing unit to better adapt to parts of different sizes.

[0011] Preferably, a plurality of the polishing blocks are each provided with a rotating shaft, and a sliding groove is provided inside the sliding cylinder for the rotating shaft to be inserted into and for freely rotating and sliding.

[0012] By adopting the above technical solution, the polishing block can rotate and slide freely inside the slide barrel, so as to better adapt to the surfaces of parts with different shapes and improve the uniformity and efficiency of grinding. At the same time, this design can also reduce the friction between the polishing block and the slide barrel, and extend the service life of the equipment.

[0013] Preferably, a water collecting tank is provided on the surface of the operating table, and the extrapolation assembly includes a water pump and a water supply pipe, the water supply pipe is connected between the water pump and the slide cylinder, and the water pump is located in the water collecting tank.

[0014] By adopting the above technical solution, the water collection tank can collect and recycle the coolant or grinding chips generated during the grinding process, reduce environmental pollution, and facilitate cleaning and maintenance.

[0015] The push-out assembly uses a water pump and a water supply pipe to use the thrust of the water flow to push the polishing block outward, which can not only ensure that the coolant can be evenly distributed on each polishing block, improving the grinding quality and efficiency everywhere, but also achieve stable push-out of the polishing block. In addition, when the equipment is not working, the polishing block can also automatically fall back and be stored inside the slide.

[0016] The water pump is located in the water collection tank, which realizes the recycling of coolant, reduces energy consumption and improves the overall performance of the equipment.

[0017] Preferably, the side walls of the polishing blocks are provided with water-permeable grooves, and the water-permeable grooves of adjacent polishing blocks form a water-permeable hole.

[0018] By adopting the above technical solution, the side wall of the polishing block is provided with a water-permeable groove, and the water-permeable grooves of adjacent polishing blocks form a water-permeable hole, which can more effectively guide the coolant or lubricating liquid into the polishing area, improve the cooling and lubrication effects, reduce heat accumulation during the polishing process, extend the service life of the polishing block, and ensure the polishing quality.

[0019] Preferably, one end of the water supply pipe located inside the slide cylinder is arranged in a direction away from the plurality of polishing blocks.

[0020] By adopting the above technical solution, the water flow first impacts the bottom of the slide tube, so that the inside of the slide tube is filled with water and a certain water pressure is maintained. The stable water pressure is used to push the polishing blocks outward, thereby effectively preventing the water flow from directly impacting the polishing blocks, avoiding unstable movement of the polishing blocks due to the impact of the water flow, thereby improving the stability and accuracy of the grinding process. At the same time, this design can also ensure that the water flow is evenly distributed in the gaps between the polishing blocks, enhance the cooling and lubrication effects, and extend the service life of the polishing blocks.

[0021] Preferably, a plurality of overflow plates are provided at the bottom of the water collecting tank, and a sedimentation area is formed between adjacent overflow plates.

[0022] By adopting the above technical solution, several overflow plates arranged at the bottom of the sump can effectively guide the direction of water flow, slow down the water flow rate, and prevent dust splashing caused by water flow impact. At the same time, the sedimentation area formed between adjacent overflow plates can effectively collect and precipitate the dust and impurities generated during the grinding process, thereby improving the cleanliness of the grinding environment and reducing environmental pollution.

[0023] Preferably, a dust filter sponge strip is provided on the top of the overflow plate.

[0024] By adopting the above technical solution, the dust filter sponge strip can further effectively absorb and filter the dust generated during the grinding process, preventing the dust from entering the subsequent sedimentation area, thereby keeping the water clean, reducing the impact on subsequent circulating water, improving the grinding quality and efficiency, and extending the service life of the equipment.

[0025] Preferably, a mounting hole is provided on the top of the overflow plate, the dust filter sponge strip is inserted into the mounting hole and can slide up and down, and a suspended foam strip is provided on the top of the dust filter sponge strip.

[0026] By adopting the above technical solution, the suspended foam strip set on the top of the dust filter sponge strip can always float on the water surface, thereby further intercepting and absorbing impurities on the water surface, enhancing the filtering effect, and ensuring the quality of water used in the grinding process. In addition, as the liquid level changes, the suspended foam strip can move up and down synchronously, so that the effective filtering area of ​​the dust filter sponge strip actually extending out of the installation hole can be dynamically adjusted by itself.

[0027] Preferably, the driving end of the telescopic member is connected to an adjusting frame, the slide cylinder is rotationally connected to the adjusting frame, and the adjusting frame is further provided with a locking member for locking the angle of the slide cylinder.

[0028] By adopting the above technical solution, the angle adjustment and fixation of the slide can be realized, so as to better adapt to the surfaces of parts with different shapes and improve the grinding quality and efficiency. Specifically, the driving end of the telescopic member is connected to the adjustment frame, so that the slide can move with the adjustment frame, and the rotational connection between the slide and the adjustment frame allows the slide to rotate within a certain range to adapt to different grinding angles. The locking member on the adjustment frame can lock the position of the slide after adjusting the angle to ensure stability during the grinding process.

[0029] Preferably, the locking member includes a locking bolt, the adjusting frame is provided with a clearance hole for the locking bolt to pass through, the outer wall of the sliding cylinder is provided with a locking hole for the end of the locking bolt to extend into, and the end of the locking bolt abuts against the bottom wall of the locking hole.

[0030] By adopting the above technical solution, the locking bolt can accurately fix the angle of the slide barrel, ensuring that the polishing block remains stable during operation, thereby improving the grinding accuracy and efficiency. At the same time, the design of the end of the locking bolt abutting against the bottom wall of the locking hole further enhances the reliability of locking, prevents the slide barrel angle from changing due to vibration during the grinding process, and ensures the grinding quality.

[0031] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting a slide and several polishing blocks, and using an outward push assembly to push the polishing blocks outward until they are against the parts, adaptive adjustment of curved parts is achieved, and the adaptability and polishing effect of the polishing device for parts of different shapes are improved; 2. The polishing block is equipped with a rotating shaft and can rotate and slide freely in the slide cylinder, ensuring that the polishing block can flexibly adjust its position when contacting the parts, enhancing the uniformity and stability of the polishing process; 3. A water collection tank is set on the surface of the operating table. The push-out assembly includes a water pump and a water supply pipe. Water is transported to the inside of the slide barrel through the water supply pipe, which effectively reduces the temperature during the grinding process and reduces thermal damage. At the same time, it helps to clean up the debris generated during the grinding process and keep the working environment clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 This is a structural schematic diagram for illustrating the connection relationship between the overflow plate and the operating table in the embodiment of the present application; Figure 3 This is a structural schematic diagram for illustrating the connection relationship between the polishing block and the slide cylinder in the embodiment of the present application; Figure 4 This is a structural schematic diagram for illustrating the connection relationship between the dust filter sponge strip and the overflow plate in the embodiment of the present application; Figure 5It is a structural schematic diagram used to reflect the connection relationship between the adjustment frame and the slide cylinder in the embodiment of the present application.

[0033] In the figure: 1. Operating table; 10. Water collecting tank; 11. Clamping unit; 2. grinding unit; 21. polishing frame; 22. polishing drive assembly; 23. telescopic member; 24. adjustment frame; 25. slide cylinder; 26. polishing block; 260. water-permeable groove; 27. rotating shaft; 270. slide groove; 3. Extrapolation assembly; 31. Water pump; 32. Water supply pipe; 4. Overflow plate; 40. Sedimentation area; 41. Mounting hole; 42. Dust filter sponge strip; 43. Suspended foam strip; 5. Locking piece; 51. Clearance hole; 52. Locking hole. DETAILED DESCRIPTION

[0034] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.

[0035] The inventor of the present application found that metal parts will produce some rough places such as burrs during the processing process, and generally need to be polished and polished with sandpaper or a polishing plate to make the surface of high-precision parts smooth. In order to improve work efficiency, some standard parts can also be automatically polished and polished by a polishing device. To this end, the present application mainly adopts the following scheme, namely a high-precision polishing device for metal parts, including an operating table, a clamping unit for clamping and rotating parts and a polishing unit for polishing parts are arranged on the operating table, the polishing unit includes a polishing frame, the polishing frame is slidably connected to the operating table, and a polishing drive assembly for driving the polishing frame to slide is arranged between the polishing frame and the operating table, the polishing frame is connected to a slide cylinder through a telescopic member, a plurality of polishing blocks are arranged inside the slide cylinder, and a plurality of polishing blocks are slidably connected to the slide cylinder, and an extrapolation assembly for pushing a plurality of polishing blocks outward to abut against the parts is arranged inside the slide cylinder, so as to achieve the effect of improving the adaptability of parts with curved surfaces. The present application is further described in detail below. Example

[0036] Reference Figure 1The embodiment of the present application provides a high-precision grinding device for metal parts, including a square operating table 1, on which a clamping unit 11 for clamping and rotating parts is provided. In the present embodiment, there are two clamping units 11, which are respectively provided at both ends of the operating table 1. The clamping unit 11 clamps the workpiece with a clamping claw, and cooperates with the motor to realize the rotation of the workpiece in the clamping state, so as to facilitate the subsequent grinding and polishing of the workpiece during the rotation process. In the actual scenario, the two clamping units 11 are also equipped with a moving device to move at least one of the clamping units 11 to facilitate the picking and placing of the workpiece, but since this part of the technical content is not related to the main invention content of the present application and various types of moving devices can be known in the prior art, it will not be repeated in this embodiment.

[0037] Reference Figure 2 A grinding unit 2 is also provided in the middle of the operating table 1. The grinding unit 2 is located between the two clamping units 11 and is used to grind various parts of the workpiece. The grinding unit 2 includes a columnar polishing frame 21. The polishing frame 21 and the operating table 1 are slidably connected by means of a slide groove 270. A polishing drive assembly 22 for driving the polishing frame 21 to slide is provided between the polishing frame 21 and the operating table 1. The polishing drive assembly 22 uses a screw rod passing through the polishing frame 21 and cooperating with a motor to realize the movement control of the polishing frame 21. The motor drives the screw rod to rotate forward and backward to realize the lateral reciprocating movement of the grinding unit 2, so as to finally realize multiple grinding and polishing of various parts of the workpiece.

[0038] Reference Figure 2 and Figure 3 The top of the polishing frame 21 is connected with a telescopic member 23. In this embodiment, the telescopic member 23 is a cylinder. In other embodiments, the telescopic member 23 can also be a hydraulic cylinder or an electric push rod. The specific selection depends on the load and speed requirements of the actual application. For example, if the load is large, a hydraulic cylinder can be selected to increase the thrust; if a quick response is required, an electric push rod can be selected to increase the response speed. The driving end of the telescopic member 23 is fixedly connected with an adjustment frame 24. The adjustment frame 24 is a frame structure with a U-shaped cross section. A slide cylinder 25 is arranged inside the adjustment frame 24, and a plurality of polishing blocks 26 for grinding and polishing the workpiece are arranged inside the slide cylinder 25.

[0039] Reference Figure 3, the polishing blocks 26 inside the slide 25 can be made of wear-resistant materials, such as silicon carbide, aluminum oxide, etc. The polishing blocks 26 are all provided with a rotating shaft 27, and correspondingly, the inner wall of the slide 25 is symmetrically provided with a slide groove 270, and the two ends of the rotating shaft 27 are respectively inserted into the slide groove 270 and can rotate and slide freely. The advantage of this design is that the polishing block 26 can freely adjust its position (slide and rotate) inside the slide 25, so as to better adapt to parts with different curved surfaces. For example, when the curvature of the part is large, the polishing block 26 will automatically adjust to a suitable angle so that the end face fits better with the part, ensuring that the contact area is maximized, thereby improving the polishing effect.

[0040] Reference Figure 2 and Figure 3 , an outward push assembly 3 for pushing a plurality of polishing blocks 26 outward to abut against the parts is also provided inside the slide 25. In this embodiment, the outward push assembly 3 includes a water pump 31 and a water supply pipe 32. A water collecting tank 10 is provided on the top surface of the operating table 1. The water pump 31 is installed in the water collecting tank 10 on the surface of the operating table 1 to absorb the water in the water collecting tank 10. The polishing rack 21 is located above the water collecting tank 10. The water supply pipe 32 is connected between the water pump 31 and the slide 25, so that water can be pumped into the slide 25 during the processing to spray and cool the polishing part, and the debris and dust in the polishing process can be dissolved in the water and then fall back into the water collecting tank 10.

[0041] The working principle of the push-out assembly 3 in this embodiment is to use water pressure to push a plurality of polishing blocks 26, and the water supply pipe 32 is located at one end of the slide 25 and is arranged in the direction opposite to the plurality of polishing blocks 26, which can ensure that the water flow is evenly distributed in the entire slide 25, so that after the entire slide 25 is in a relatively stable water pressure, the plurality of polishing blocks 26 are pushed to abut against the parts by water pressure. This design can not only push the polishing blocks 26 outward, but also take away the heat and dust generated during the grinding process through the water flow, thereby improving the grinding quality and the safety of the working environment. In other embodiments, the push-out assembly 3 can also be a spring or other elastic component used to push a plurality of polishing blocks 26 outward, or it can also be used synchronously with the spring in combination with water pressure.

[0042] Reference Figure 2 The design of the water collection tank 10 is also very important. It can collect wastewater and dust generated during the grinding process. In this embodiment, a plurality of overflow plates 4 are evenly distributed at the bottom of the water collection tank 10. A sedimentation area 40 is formed between adjacent overflow plates 4. The water flow containing debris can automatically precipitate the debris under the interception effect of the plurality of overflow plates 4, so that the upper clear liquid can overflow to the water pump 31 for continuous reuse.

[0043] Reference Figure 4In addition, a mounting hole 41 is provided on the top of the overflow plate 4, and a dust filter sponge strip 42 is inserted into the mounting hole 41. The dust filter sponge strip 42 can slide up and down, and a suspended foam strip 43 is glued and fixed on the top of the dust filter sponge strip 42, and the suspended foam strip 43 can always be suspended on the water surface. Such a design can use the dust filter sponge strip 42 to filter the overflow part of the water body, and the suspended foam strip 43 can also intercept the suspended particles suspended on the water surface. On the whole, the dust filter sponge and the suspended foam strip 43 can cooperate with each other to effectively filter out large particles of impurities in the wastewater, prevent clogging of the water pump 31 or the water supply pipe 32, so as to continuously purify the water quality and improve the stability of continuous operation.

[0044] Reference Figure 3 , the side wall of the polishing block 26 is provided with a water-permeable groove 260. When several polishing blocks 26 are inclined and fit together, the water-permeable grooves 260 of adjacent polishing blocks 26 can enclose a water-permeable hole. This design can further improve the uniform distribution of water flow and enhance the cooling and dust removal effects. Specifically, the water-permeable groove 260 can be arc-shaped or straight-line-shaped, and the specific shape can be adjusted according to actual needs. The size and number of the enclosed water-permeable holes can also be designed according to the number and size of the polishing blocks 26. For example, if there are more polishing blocks 26 and the size is smaller, more water-permeable holes can be designed to increase the coverage area of ​​the water flow; if there are fewer polishing blocks 26 and the size is larger, larger water-permeable holes can be designed to increase the speed and pressure of the water flow. The design of the water-permeable groove 260 can further improve the uniformity of the water flow and ensure that each polishing block 26 can obtain sufficient cooling and lubrication. For example, when the water flow enters the interior of the slide 25, it will be evenly distributed between the polishing blocks 26 through the water-permeable holes, taking away the heat and dust generated during the grinding process, and improving the grinding quality and the safety of the working environment.

[0045] Reference Figure 5 The slide 25 is rotatably connected to the adjustment frame 24, and the adjustment frame 24 is also provided with a locking member 5 for locking the angle of the slide 25. For example, when the part of the workpiece to be polished must be fitted at a special angle, the angle adjustment of the slide 25 can be achieved by rotating and locking the slide. In this embodiment, the locking member 5 is a locking bolt, and the adjustment frame 24 is provided with a clearance hole 51 for the locking bolt to pass through. The outer wall of the slide 25 is provided with a locking hole 52 for the end of the locking bolt to extend into. In the locked state, the end of the locking bolt is pressed against the bottom wall of the locking hole 52 to achieve stable locking. When adjustment is required, the locking bolt is loosened to rotate the slide 25. This design can adjust the angle of the slide 25 more flexibly, and the operation is convenient. In addition, this design can ensure that the slide 25 can be firmly locked after the angle is adjusted, and will not loosen due to external vibration or impact.

[0046] The implementation principle of this embodiment is: place the parts between the two clamping units 11, start the clamping unit 11 so that the parts are stably clamped and rotated, and then start the telescopic member 23 and the polishing drive assembly 22 to make the slide 25 close to the parts to be polished. The angle of the slide 25 can be adjusted in advance according to the shape of the parts to ensure the best contact state between the polishing block 26 and the surface of the parts. The locking member 5 can ensure that the slide 25 can be firmly locked after the angle is adjusted and will not loosen due to external vibration or impact. In addition, the outer push assembly 3 is restarted to push the polishing block 26 outward through the water pump 31 and the water supply pipe 32, so that it is in close contact with the surface of the parts, so that the surface of the parts can be polished more closely. This design not only improves the adaptability and flexibility of the polishing device, but also significantly improves the polishing effect and production efficiency, while ensuring the stability of the work. In addition, a plurality of overflow plates 4 are arranged at the bottom of the water collection tank 10, and a sedimentation area 40 is formed between adjacent overflow plates 4, which can effectively collect and filter large particles of impurities generated during the polishing process. A dust filter sponge strip 42 is provided on the top of the overflow plate 4. The dust filter sponge strip 42 is inserted into the mounting hole 41 on the top of the overflow plate 4 and can slide up and down. A suspended foam strip 43 is provided on the top of the dust filter sponge strip 42 to further filter out fine particles in the wastewater and keep the water clean. This design not only improves the adaptability and flexibility of the grinding device, but also significantly improves the grinding effect and production efficiency, while ensuring the safety of the working environment.

[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-precision grinding device for metal parts, comprising an operating table (1), wherein the operating table (1) is provided with a clamping unit (11) for clamping and rotating the parts and a grinding unit (2) for grinding the parts, characterized in that: The polishing unit (2) comprises a polishing frame (21), the polishing frame (21) is slidably connected to the operating table (1), and a polishing drive assembly (22) for driving the polishing frame (21) to slide is arranged between the polishing frame (21) and the operating table (1), the polishing frame (21) is connected to a slide cylinder (25) via a telescopic member (23), a plurality of polishing blocks (26) are arranged inside the slide cylinder (25), the plurality of polishing blocks (26) are slidably connected to the slide cylinder (25), and an outward push assembly (3) for pushing the plurality of polishing blocks (26) outwards to abut against parts is arranged inside the slide cylinder (25).

2. A high-precision grinding device for metal parts according to claim 1, characterized in that: A plurality of the polishing blocks (26) are each provided with a rotating shaft (27), and a sliding groove (270) is provided inside the slide cylinder (25) for the rotating shaft (27) to be inserted and for freely rotating and sliding.

3. The high-precision grinding device for metal parts according to claim 1, characterized in that: The surface of the operating table (1) is provided with a water collecting tank (10), the extrapolation assembly (3) comprises a water pump (31) and a water supply pipe (32), the water supply pipe (32) is connected between the water pump (31) and the slide cylinder (25), and the water pump (31) is located in the water collecting tank (10).

4. A high-precision grinding device for metal parts according to claim 3, characterized in that: The side wall of the polishing block (26) is provided with a water-permeable groove (260), and the water-permeable grooves (260) of adjacent polishing blocks (26) form a water-permeable hole.

5. The high-precision grinding device for metal parts according to claim 3, characterized in that: One end of the water supply pipe (32) located inside the slide cylinder (25) is arranged in a direction away from the plurality of polishing blocks (26).

6. The high-precision grinding device for metal parts according to claim 3, characterized in that: A plurality of overflow plates (4) are arranged at the bottom of the water collecting tank (10), and a sedimentation area (40) is formed between adjacent overflow plates (4).

7. A high-precision grinding device for metal parts according to claim 6, characterized in that: A dust filtering sponge strip (42) is arranged on the top of the overflow plate (4).

8. The high-precision grinding device for metal parts according to claim 7, characterized in that: The overflow plate (4) is provided with a mounting hole (41) at the top, the dust filter sponge strip (42) is inserted into the mounting hole (41) and can slide up and down, and a suspension foam strip (43) is provided at the top of the dust filter sponge strip (42).

9. The high-precision grinding device for metal parts according to claim 1, characterized in that: The driving end of the telescopic member (23) is connected to an adjusting frame (24), the slide cylinder (25) and the adjusting frame (24) are rotatably connected, and the adjusting frame (24) is also provided with a locking member (5) for locking the angle of the slide cylinder (25).

10. A high-precision grinding device for metal parts according to claim 9, characterized in that: The locking member (5) comprises a locking bolt, the adjusting frame (24) is provided with a clearance hole (51) for the locking bolt to pass through, the outer wall of the slide cylinder (25) is provided with a locking hole (52) for the end of the locking bolt to extend into, and the end of the locking bolt abuts against the bottom wall of the locking hole (52).

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