Grinding tool for grinding surface of inner hole on boring machine
By designing a grinding tool for boring machines, the sandpaper is tightened using brackets and bolt structures, the problem of the sandpaper not being able to fit closely with the main body of the abrasive is improved, and the sandpaper temperature is avoided through the heat dissipation mechanism.
Patent Information
- Application Number
- CN202421153143.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-24
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2034-05-24
AI Technical Summary
In the abrasive tools used to polish the inner hole surface on the existing boring machines, the sandpaper cannot be tightly attached to the main body of the abrasive tool, resulting in the sandpaper swing during the grinding process, affecting the grinding quality.
A grinding tool for polishing the inner hole surface on the boring machine is designed, using structures such as brackets and bolts. The pressure plate is pushed out by rotating the bolts, the sandpaper is fixed, and the sandpaper is tightened through the screws and spring mechanisms to make it get along with the mill. It has a tight fit with the body.
Through this design, the sandpaper is closely fitted with the abrasive body, avoiding the swing of the sandpaper, improving the grinding quality, and effectively dissipating heat by increasing the contact area of air or coolant, avoiding excessive temperature of the sandpaper.
Smart Images
Figure CN222520959U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a grinding tool for grinding the surface of an inner hole on a boring machine. Background Art
[0002] A boring machine is a type of machine tool that is widely used in the daily production of the machinery manufacturing industry. It is mainly used to process the inner holes of parts. After the inner holes are processed, they need to be polished with a grinder to improve the smoothness and coaxiality of the inner holes and ensure the accuracy of assembly.
[0003] However, during the use of the existing grinding tool, in order to avoid overcutting of the protruding part of the honing head, a ring-shaped part is installed on the outside of the grinding tool body by means of screws, and finally a screw-extrusion clamping plate is installed on the ring-shaped part to clamp the sandpaper and the grinding tool body. However, this method will cause the sandpaper and the grinding tool body to not be able to fit tightly to each other, so the sandpaper will swing during the grinding process, which will affect the grinding quality. Therefore, a grinding tool for grinding the inner hole surface on a boring machine is proposed to solve the above problem. Utility Model Content
[0004] In order to make up for the above shortcomings, the utility model provides a grinding tool for grinding the inner hole surface on a boring machine, aiming to improve the problem in the prior art that the sandpaper and the grinding tool body cannot be closely attached to each other, resulting in the swing of the sandpaper during the grinding process and thus affecting the grinding quality.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a grinding tool for grinding the surface of an inner hole on a boring machine, comprising a bracket, the bottom of the bracket is fixedly connected to the grinding tool body, and sandpaper is arranged on the outside of the grinding tool body, and support frames are fixedly connected to the two sides of the outer wall of the bracket, and bolts are threadedly connected to the middle parts of the support frames on both sides, and pressure plates are rotatably connected to the proximal sides of the bolts on both sides, and the outer walls of the pressure plates on both sides are respectively slidably connected to the insides of the brackets on both sides, and top plates are arranged on the proximal sides of the pressure plates on both sides, the top plate on the left side of the bracket is fixedly connected to the bracket, and a screw is threadedly connected to the outer side of the middle part of the top plate on the right side of the bracket, and the screw passes through the pressure plate on the right side of the bracket, a pressure block is arranged between the pressure plate and the top plate, and the pressure block contacts the sandpaper, springs are arranged on the far sides of the outer walls of the bolts on both sides, and guide components are arranged on the outer walls of the pressure plates on both sides.
[0006] As a further description of the above technical solution:
[0007] A pressing groove is provided on one side of the top plate close to the pressing plate, the pressing block is located inside the pressing groove, and a through hole is provided on the outer side of the middle part of the supporting frame on the right side.
[0008] As a further description of the above technical solution:
[0009] The guide assembly comprises a sliding block, the inner wall of the support frame is provided with a sliding groove, and the sliding block is slidably connected inside the sliding groove.
[0010] As a further description of the above technical solution:
[0011] One end of the bolt close to the pressure plate is fixedly connected with a rotating plate, one side of the pressure plate close to the bolt is fixedly connected with a clamping ring, and the rotating plate is rotatably connected inside the clamping ring.
[0012] As a further description of the above technical solution:
[0013] A top block is fixedly connected to the bottom surface of the abrasive tool body, and the sandpaper is located inside the top block.
[0014] As a further description of the above technical solution:
[0015] The top block is arranged in a ring shape, and the first support plate and the second support plate are respectively fixedly connected to two sides of the inside of the top block.
[0016] As a further description of the above technical solution:
[0017] The first support plate and the second support plate are both arranged in a transverse V-shape, and the opening directions of the first support plate and the second support plate are both toward the middle of the top block.
[0018] As a further description of the above technical solution:
[0019] Baffles are fixedly connected to the front and rear sides of the tops of both sides of the mold body, and arc surfaces are arranged on the tops of both sides of the mold body.
[0020] The utility model has the following beneficial effects:
[0021] 1. In the utility model, the pressure plate on the left side can be pushed out by rotating the bolt on the left side of the bracket. At this time, the left side of the sandpaper can be pressed between the pressure plate and the top plate on the left side of the bracket. Then, the right side of the sandpaper can be installed between the pressure plate and the top plate on the right side of the bracket by screws. At this time, the bolt on the right side of the bracket can be rotated to drive the right side of the sandpaper close to the bracket. Therefore, the sandpaper can be tensioned to make the sandpaper fit tightly with the abrasive tool body, thereby ensuring the quality of grinding.
[0022] 2. In the utility model, by setting the top block in a ring shape and providing a plurality of first support plates and a second support plate, a plurality of through holes are formed in the top block, the first support plate and the second support plate, thereby increasing the contact area between the device and the air or the coolant, thereby facilitating heat dissipation and preventing the abrasive particles on the sandpaper from falling off due to excessively high sandpaper temperature. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1This is a three-dimensional structural schematic diagram of a grinding tool for grinding the surface of an inner hole on a boring machine proposed by the utility model;
[0024] Figure 2 This is a schematic diagram of the structure of a support portion of a grinding tool for grinding the surface of an inner hole on a boring machine proposed by the utility model;
[0025] Figure 3 This is a structural exploded view of a pressure plate portion of a grinding tool for grinding the inner hole surface on a boring machine proposed by the utility model;
[0026] Figure 4 The utility model discloses a front sectional view of a pressing plate of a grinding tool for grinding the surface of an inner hole on a boring machine.
[0027] Legend:
[0028] 1. Bracket; 2. Abrasive tool body; 3. Sandpaper; 4. Support frame; 5. Bolts; 6. Pressure plate; 7. Top plate; 8. Pressure block; 9. Spring; 10. Pressure groove; 11. Slide groove; 12. Slider; 13. Turn plate; 14. Retaining ring; 15. Baffle; 16. Top block; 17. First support plate; 18. Second support plate; 19. Arc surface; 20. Screws. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the specification of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0030] Reference Figure 1 , Figure 3 and Figure 4The utility model provides an embodiment: a grinding tool for grinding the inner hole surface on a boring machine, comprising a bracket 1, a grinding tool body 2 is fixedly connected to the bottom of the bracket 1, and sandpaper 3 is arranged on the outside of the grinding tool body 2, support frames 4 are fixedly connected to the two sides of the outer wall of the bracket 1, bolts 5 are threadedly connected to the middle parts of the support frames 4 on both sides, and pressure plates 6 are rotatably connected to the adjacent sides of the bolts 5 on both sides, and the outer walls of the pressure plates 6 on both sides are respectively slidably connected to the inside of the brackets 1 on both sides, and top plates 7 are arranged on the adjacent sides of the pressure plates 6 on both sides, the top plate 7 on the left side of the bracket 1 is fixedly connected to the bracket 1, and a screw 20 is threadedly connected to the outer side of the middle part of the top plate 7 on the right side of the bracket 1, and the screw 20 passes through the pressure plate 6 on the right side of the bracket 1, and a pressure block 8 is arranged between the pressure plate 6 and the top plate 7, and the pressure block 8 is in contact with the sandpaper 3, springs 9 are arranged on the far sides of the outer walls of the bolts 5 on both sides, and guide components are arranged on the outer walls of the pressure plates 6 on both sides.
[0031] When in use, first insert the left side of the sandpaper 3 between the pressure plate 6 and the top plate 7 on the left side of the bracket 1, rotate the bolt 5 on the left side of the bracket 1 to make the pressure plate 6 on the left side of the bracket 1 close to the top plate 7 on the left side of the bracket 1, at this time, the left side of the sandpaper 3 can be fixed on the left side of the bracket 1, and then the right side of the sandpaper 3 is inserted between the pressure plate 6 and the top plate 7 on the right side of the bracket 1, and the pressure plate 6 and the top plate 7 on the right side of the bracket 1 are installed together with the screw 20, at this time, the right side of the sandpaper 3 can be fixed, and then the bolt 5 on the right side of the bracket 1 is rotated to drive the pressure plate 6 and the top plate 7 on the right side of the bracket 1 close to the bracket 1, and then the sandpaper 3 can be pulled. At this time, the sandpaper 3 can be tensioned to make it close to the bracket 1 and the abrasive tool body 2, so that the sandpaper 3 can be prevented from loosening, thereby ensuring the quality of grinding.
[0032] Reference Figure 2 , Figure 3 and Figure 4 A pressing groove 10 is provided on one side of the top plate 7 near the pressing plate 6, the pressing block 8 is located inside the pressing groove 10, and a through hole is provided on the outer side of the middle part of the right support frame 4. The guide assembly includes a slider 12, a slide groove 11 is provided on the inner wall of the support frame 4, and the slider 12 is slidably connected inside the slide groove 11.
[0033] By pressing the pressing block 8 tightly against the inside of the pressing groove 10, the two sides of the sandpaper 3 can be respectively in contact with the pressing block 8 and the pressing groove 10, thereby increasing the contact area between the three, thereby improving the fixing effect of the sandpaper 3, and through the through hole on the right support frame 4, it is convenient to use a tool to rotate the screw 20. The sliding groove 11 can guide the movement direction of the slider 12, thereby guiding the movement direction of the pressing plate 6.
[0034] Reference Figure 3 and Figure 4One end of the bolt 5 close to the pressure plate 6 is fixedly connected with a rotating plate 13 , and one side of the pressure plate 6 close to the bolt 5 is fixedly connected with a clamping ring 14 , and the rotating plate 13 is rotatably connected inside the clamping ring 14 .
[0035] By clamping the rotating plate 13 inside the clamping ring 14 , the clamping ring 14 can be used to provide installation space for the bolt 5 and the rotating plate 13 .
[0036] Reference Figure 1 and Figure 2 The bottom surface of the abrasive tool body 2 is fixedly connected with a top block 16, and the sandpaper 3 is inside the top block 16. The top block 16 is set in an annular shape, and the first support plate 17 and the second support plate 18 are fixedly connected to the two sides of the top block 16. The first support plate 17 and the second support plate 18 are both set in a transverse V shape, and the opening directions of the first support plate 17 and the second support plate 18 are both toward the middle of the top block 16.
[0037] By installing a top block 16 at the bottom of the mold body 2, and installing a first support plate 17 and a second support plate 18 inside the top block 16, the contact area between the bottom of the device and the airflow and the coolant can be increased. Therefore, the heat generated by the sandpaper 3 when grinding the inner hole of the component can be transferred to the top block 16, the first support plate 17 and the second support plate 18, so that the high temperature generated during grinding can be dissipated in time to avoid the abrasive particles on the sandpaper falling off due to the sandpaper temperature being too high.
[0038] Reference Figure 1 and Figure 2 The front and rear sides of the tops of both sides of the mold body 2 are fixedly connected with baffles 15, and the tops of both sides of the mold body 2 are provided with arc surfaces 19.
[0039] By installing baffles 15 on both sides of the top of the mold body 2, the baffles 15 can be used to limit the sandpaper 3, and the corners of the top of both sides of the mold body 2 are provided with arc surfaces 19, so that the sandpaper 3 can be prevented from being scratched by sharp points.
[0040] Working principle: When in use, first take out the sandpaper 3, then insert the left side of the sandpaper 3 between the pressure plate 6 and the top plate 7 on the left side of the bracket 1, and make the grinding surface of the sandpaper 3 face the bolt 5 on the left side of the bracket 1, and then by rotating the bolt 5 on the left side of the bracket 1, the pressure plate 6 on the left side of the bracket 1 can be close to the top plate 7 on the left side of the bracket 1, and the left side of the sandpaper 3 can be pressed between the pressure plate 6 and the top plate 7 on the left side of the bracket 1, and the sandpaper 3 can be squeezed by the pressing block 8 to enter the pressing groove 10 of the top plate 7. At this time, the left side of the sandpaper 3 can be installed on the left side of the bracket 1, and then the sandpaper 3 is pulled to wrap around the abrasive tool body 2 and the top block 16, and then the right side of the sandpaper 3 is inserted between the pressure plate 6 and the top plate 7 on the right side of the bracket 1, and then the screw 20 is rotated to clamp the pressure plate 6 and the top plate 7 on the right side of the bracket 1 to each other, and then the bolt 5 on the right side of the bracket 1 is rotated. At this time, the pressure plate 6 and the top plate 7 on the right side of the bracket 1 can be close to the bracket 1, and the sandpaper 3 will be driven The right side of the paper 3 is close to the right side of the bracket 1, at this time, the sandpaper 3 can be pulled, thereby tightening the sandpaper 3, making it fit tightly with the bracket 1 and the top block 16, and when the bolt 5 is rotated to extend the pressure plate 6, the countersunk position of the bolt 5 will gradually approach the bracket 1, so the spring 9 can be squeezed. At this time, the spring 9 can be compressed, and the bolt 5 can be supported by the elastic force of the spring 9, which can prevent the bolt 5 from rotating during the grinding operation, and the heat generated during the grinding process will be transferred to the sandpaper 3. At this time, the heat will accumulate on the sandpaper 3, the top block 16, the first support plate 17 and the second support plate 18. At this time, the multiple through holes between the top block 16, the first support plate 17 and the second support plate 18 can be used to increase the contact area between the top block 16, the first support plate 17 and the second support plate 18 and the air and coolant, so the heat can be dissipated in time, thereby preventing the sandpaper 3 from being overheated and causing the abrasive particles on the sandpaper 3 to fall off.
[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A grinding tool for grinding the surface of an inner hole on a boring machine, comprising a bracket (1), characterized in that: The bottom of the bracket (1) is fixedly connected to a mold body (2), and sandpaper (3) is arranged on the outside of the mold body (2). Support frames (4) are fixedly connected to both sides of the outer wall of the bracket (1), and bolts (5) are threadedly connected to the middle of the support frames (4) on both sides. The proximal sides of the bolts (5) on both sides are rotatably connected to pressure plates (6), and the outer walls of the pressure plates (6) on both sides are respectively slidably connected to the inside of the brackets (1) on both sides, and top plates (7) are arranged on the proximal sides of the pressure plates (6) on both sides. The top plate (7) on the left side of the bracket (1) is fixedly connected to the bracket (1), and a screw (20) is threadedly connected to the outer side of the middle part of the top plate (7) on the right side of the bracket (1), and the screw (20) passes through the pressure plate (6) on the right side of the bracket (1), and a pressure block (8) is arranged between the pressure plate (6) and the top plate (7), and the pressure block (8) is in contact with the sandpaper (3), and springs (9) are arranged on the far sides of the outer walls of the bolts (5) on both sides, and guide components are arranged on the outer walls of the pressure plates (6) on both sides.
2. The grinding tool for grinding the inner hole surface on a boring machine according to claim 1, characterized in that: A pressing groove (10) is provided on one side of the top plate (7) close to the pressing plate (6), the pressing block (8) is located inside the pressing groove (10), and a through hole is provided on the outer side of the middle part of the right support frame (4).
3. The grinding tool for grinding the inner hole surface on a boring machine according to claim 1, characterized in that: The guide assembly comprises a sliding block (12); a sliding groove (11) is provided on the inner wall of the support frame (4); and the sliding block (12) is slidably connected inside the sliding groove (11).
4. The grinding tool for grinding the inner hole surface on a boring machine according to claim 1, characterized in that: One end of the bolt (5) close to the pressure plate (6) is fixedly connected to a rotating plate (13), and one side of the pressure plate (6) close to the bolt (5) is fixedly connected to a clamping ring (14), and the rotating plate (13) is rotatably connected inside the clamping ring (14).
5. The grinding tool for grinding the inner hole surface on a boring machine according to claim 1, characterized in that: A top block (16) is fixedly connected to the bottom surface of the grinding tool body (2), and the sandpaper (3) is located inside the top block (16).
6. The grinding tool for grinding the inner hole surface on a boring machine according to claim 5, characterized in that: The top block (16) is arranged in a ring shape, and a first support plate (17) and a second support plate (18) are respectively fixedly connected to two sides of the inside of the top block (16).
7. A grinding tool for grinding the inner hole surface on a boring machine according to claim 6, characterized in that: The first support plate (17) and the second support plate (18) are both arranged in a transverse V-shape, and the opening directions of the first support plate (17) and the second support plate (18) are both oriented toward the middle of the top block (16).
8. The grinding tool for grinding the inner hole surface on a boring machine according to claim 1, characterized in that: Baffles (15) are fixedly connected to the front and rear sides of the tops of both sides of the mold body (2), and curved surfaces (19) are provided on the tops of both sides of the mold body (2).