A bearing superfinishing machine

Abstract

The application discloses a bearing superfinishing machine, which comprises a bottom plate and a base, one side of the top of the bottom plate is fixedly connected with the base, one end of the other side of the top of the bottom plate is fixedly connected with a side frame, a driving structure is rotationally connected in the inside of the mounting frame, and the inside of the driving structure is wrapped with a bearing main body. The bearing superfinishing machine is provided with a guide structure, a guide sliding rail is slidably connected at the top of the base, the guide sliding rail is indirectly connected with a top cover through a limiting sheet, the top cover is pushed to the bearing main body direction, the bearing main body inner wall is contacted with the outside of the polishing pipe sleeve under the hinged structure of the connecting frame and the reinforcing sleeve, and polishing is carried out, the transverse moving distance of the guide structure is limited, the rotating amplitude of the reinforcing sleeve cannot affect the contact force of the bearing main body inner wall and the outside of the polishing pipe sleeve, the reciprocating movement of the top cover is more stable through the guide sliding rail, the polishing precision is avoided from being reduced due to external force, and the stability of the superfinishing machine is improved.

Description

Technical Field

[0001] This invention relates to the field of bearing ultra-precision machining technology, and particularly to a bearing ultra-precision machining center. Background Technology

[0002] As a relatively precise mechanical part, bearings require high precision during manufacturing to ensure a low coefficient of friction and reduce wear caused by friction. Therefore, specialized ultra-precision bearing machines are used for the machining of bearings.

[0003] When performing fine grinding on bearings, common ultraprecision machines mostly employ methods such as fixing and vibration prevention to avoid deviations in bearing grinding caused by loosening, vibration, or external forces. By moving the bearing, the grinding assembly performs fine grinding along the inner or outer wall of the bearing. After ultraprecision grinding, the friction precision of the bearing's inner or outer wall is significantly reduced, thereby reducing wear caused by friction during use. Therefore, appropriate ultraprecision machines are needed in the bearing processing to perform fine grinding on the inner or outer wall of the bearing, making the bearing smoother and more wear-resistant. Common ultraprecision machines have good fine grinding effects, but some problems still exist:

[0004] Because the inner wall of the bearing is polished by moving the bearing during the polishing process, the movement of the bearing is easily affected by factors such as the magnitude and amplitude of the external force, which can cause slight vibrations in the movement of the bearing and thus affect the precision of the fine polishing of the bearing. Summary of the Invention

[0005] The purpose of this invention is to provide a bearing ultra-precision machine to solve the defect that existing bearing ultra-precision machines are prone to reduced grinding accuracy due to bearing movement.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a bearing ultraprecision machine, comprising a base plate and a base, wherein a base is fixedly connected to one side of the top of the base plate, and a side frame is fixedly connected to one end of the other side of the top of the base plate. A first guide plate is installed at the top of the base, and a guide structure is provided above the base. The guide structure includes a guide slide rail, a limiting piece, a plug rod, a rear cover plate, and a top cover. The guide slide rail is installed at both ends of the top of the base. A connecting frame is provided on one side of the guide structure. A motor is provided at one end of the side frame. A first pulley passes through the interior of the side frame. Adjustment structures are provided on both sides of the interior of the side frame. A mounting frame is provided at the other end of the side frame. A second pulley is provided at one end of the mounting frame. A drive structure is rotatably connected inside the mounting frame, and a bearing body is enclosed inside the drive structure.

[0007] In use, the bearing body is fitted inside the reinforcing sleeve and installed on the outside of the grinding tube sleeve through a clamp and fastening flange, so that the bearing body is connected to the adjusting head. When the motor starts, it will drive the grinding tube sleeve to rotate at high speed through the transmission of the belt and the first and second pulleys. Then, through the repeated high-frequency lateral push and pull guide structure, the inner wall of the bearing body is brought into contact with the grinding tube sleeve and ground, thus completing the reprocessing of the bearing body.

[0008] Preferably, limiting pieces are fixedly connected to both sides of the outer side wall of the guide slide rail, an insert rod passes through the outer side of the guide slide rail, a rear cover plate is installed on one side of the guide slide rail, and a top cover is installed on the outer side of the guide slide rail.

[0009] Preferably, the limiting pieces are symmetrically distributed on both sides of the outer wall of the guide rail, and the guide rail and the rear cover plate have a sliding structure.

[0010] Preferably, the adjustment structure includes a guide groove, a guide block, a mounting plate, a support plate, a rotating head, and an adjusting screw. The guide groove is opened on both sides inside the side frame, and a guide block is slidably connected inside the guide groove. One end of the guide block is fixedly connected to the mounting plate.

[0011] Preferably, a support plate is fixedly connected to the top of the side frame, and a rotating head is rotatably connected inside the support plate. An adjusting screw is fixedly connected to the bottom of the rotating head. By rotating the rotating head, the mounting plate drives the motor and the first pulley to adjust the height under the sliding structure of the guide groove and the guide block.

[0012] Preferably, the guide groove and the guide block have a sliding structure, and the mounting plate and the adjusting screw have a threaded connection structure, so that the height of the motor can be moved.

[0013] Preferably, the drive structure includes a grinding sleeve, an adjusting head, a reinforcing sleeve, a clamping sleeve, a fastening flange, and an adjusting handle. The grinding sleeve passes through the interior of the mounting frame, and an adjusting head is installed at one end of the outer wall of the grinding sleeve. A bearing body is sleeved on the outer side of the grinding sleeve.

[0014] Preferably, a reinforcing sleeve is fitted on the outer side of the bearing body, a retaining sleeve is installed at one end of the reinforcing sleeve, a fastening flange is installed at one end of the retaining sleeve, and an adjusting handle is installed on the outer side of the adjusting head. The lateral movement distance of the guide structure is limited, so that the rotation amplitude of the reinforcing sleeve will not affect the contact force between the inner wall of the bearing body and the outer side of the grinding tube sleeve.

[0015] Preferably, the cross-sectional area of ​​the outer diameter of the grinding sleeve is smaller than that of the mounting bracket, which has a rotating structure, and the outer side of the fastening flange is embedded with the adjusting handle, thereby making the movement of the guide rail more stable.

[0016] The present invention provides a bearing ultra-precision machine, which has the following advantages: by setting a guide structure, a guide rail is slidably connected to the top of the base, and the guide rail is indirectly connected to the top cover through a limiting piece. Pushing the top cover towards the bearing body, under the hinge structure of the connecting frame and the reinforcing sleeve, allows the inner wall of the bearing body to contact the outer side of the grinding tube sleeve for grinding. Moreover, the lateral movement distance of the guide structure is limited, so the rotation amplitude of the reinforcing sleeve will not affect the contact force between the inner wall of the bearing body and the outer side of the grinding tube sleeve. The reciprocating movement of the top cover is more stable through the guide rail, thereby avoiding the reduction of grinding accuracy due to external forces and improving the stability of the ultra-precision machine.

[0017] By setting an adjustment structure, since the lower part of the outer wall of the adjustment screw is threaded to the top of the mounting plate, the mounting plate drives the motor and the first pulley to adjust the height by rotating the rotating head under the sliding structure of the guide groove and the guide block. This makes the motor drive more stable and improves the functionality of the ultra-precision machine.

[0018] By incorporating a drive structure, the bearing body is directly fitted onto the outside of the grinding tube sleeve, and a reinforcing sleeve is fitted onto the outside of the bearing body. The adjusting head can be turned by adjusting the handle and placed outside the reinforcing sleeve, thus allowing the bearing body to rotate but preventing it from moving outward. When removing the bearing, it can be removed by turning the adjusting head with the adjusting handle, thereby improving the convenience of the ultra-precision machine. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the three-dimensional partial disassembly structure of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the adjustment structure of the present invention;

[0022] Figure 4 This is a three-dimensional disassembled structural diagram of the adjustment structure of the present invention;

[0023] Figure 5 For the present invention Figure 4 Enlarged cross-sectional view of point A in the middle section;

[0024] Figure 6 This is a three-dimensional structural diagram of the driving structure of the present invention;

[0025] Figure 7 This is a three-dimensional disassembled structural diagram of the driving structure of the present invention.

[0026] In the diagram: 1. Base plate; 2. Base; 3. First guide plate; 4. Guide structure; 401. Guide slide rail; 402. Limiting piece; 403. Insert rod; 404. Rear cover plate; 405. Top cover; 5. Side frame; 6. Motor; 7. First pulley; 8. Adjustment structure; 801. Guide groove; 802. Guide block; 803. Mounting plate; 804. Support plate; 805. Rotating head; 806. Adjusting screw; 9. Mounting bracket; 10. Connecting bracket; 11. Second pulley; 12. Drive structure; 1201. Grinding sleeve; 1202. Adjusting head; 1203. Reinforcing sleeve; 1204. Compression sleeve; 1205. Fastening flange; 1206. Adjusting handle; 13. Bearing body. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Please see Figures 1-7 The present invention provides a bearing ultra-precision machine, comprising a base plate 1 and a base 2. A first guide plate 3 is installed on the top of the base 2. A connecting frame 10 is provided on one side of the guide structure 4. A motor 6 is provided at one end of the side frame 5. A first pulley 7 passes through the interior of the side frame 5. A mounting frame 9 is provided at the other end of the side frame 5. A second pulley 11 is provided at one end of the mounting frame 9. A bearing body 13 is enclosed inside the drive structure 12. A guide structure 4 is provided above the base 2. The guide structure 4 includes a guide slide rail 401 and a limiting plate. 402, insert rod 403, rear cover plate 404 and top cover 405, guide rail 401 is installed at both ends of the top of base 2, limit piece 402 is fixedly connected to both sides of the outer side wall of guide rail 401, insert rod 403 passes through the outer side of guide rail 401, rear cover plate 404 is installed on one side of guide rail 401, top cover 405 is installed on the outer side of guide rail 401, limit piece 402 is symmetrically distributed on both sides of the outer side wall of guide rail 401, guide rail 401 and rear cover plate 404 have a sliding structure.

[0029] See attached document Figure 1 and Figure 2When the ultra-precision machine performs fine machining on the bearing, the bearing body 13 is fitted inside the reinforcing sleeve 1203 and installed on the outside of the grinding tube sleeve 1201 via the clamping sleeve 1204 and the fastening flange 1205, so that the bearing body 13 is connected to the adjusting head 1202. When the motor 6 starts, it will drive the grinding tube sleeve 1201 to rotate at high speed through the transmission of the belt and the first pulley 7 and the second pulley 11. Then, by repeatedly pushing and pulling the top cover 405 at high frequency, the inner wall of the bearing body 13 contacts the grinding tube sleeve 1201 and is ground, thus completing the reprocessing of the bearing body 13. During this process, to avoid external force vibration during the fine grinding of the moving bearing, To facilitate this movement, a guide rail 401 is slidably connected to the top of the base 2, and a limiting piece 402 indirectly connects the guide rail 401 to the top cover 405. Pushing the top cover 405 towards the bearing body 13, the inner wall of the bearing body 13 can contact the outer side of the grinding tube sleeve 1201 for grinding under the hinge structure of the connecting frame 10 and the reinforcing sleeve 1203. The lateral movement distance of the guide structure 4 is limited, so the rotation amplitude of the reinforcing sleeve 1203 will not affect the contact force between the inner wall of the bearing body 13 and the outer side of the grinding tube sleeve 1201. The guide rail 401 makes the reciprocating movement of the top cover 405 more stable, thereby avoiding the reduction of grinding accuracy due to external forces.

[0030] Adjustment structures 8 are provided on both sides inside the side frame 5. The adjustment structure 8 includes a guide groove 801, a guide block 802, a mounting plate 803, a support plate 804, a rotating head 805, and an adjusting screw 806. The guide groove 801 is provided on both sides inside the side frame 5. The guide block 802 is slidably connected inside the guide groove 801. The mounting plate 803 is fixedly connected to one end of the guide block 802. The support plate 804 is fixedly connected to the top of the side frame 5. The rotating head 805 is rotatably connected inside the support plate 804. The adjusting screw 806 is fixedly connected to the bottom end of the rotating head 805. The guide groove 801 and the guide block 802 have a sliding structure. The mounting plate 803 and the adjusting screw 806 have a threaded connection structure.

[0031] See attached document Figure 1 , Figure 3 , Figure 4 and Figure 5 Since bearings of different specifications have different materials, sizes and other specifications, the grinding speed needs to be adjusted, which requires replacing the first pulley 7. In order to make the drive of motor 6 more stable, its height also needs to be adjusted. Since the lower part of the outer wall of the adjusting screw 806 is threaded to the top of the mounting plate 803, by rotating the rotating head 805, the mounting plate 803 drives the motor 6 and the first pulley 7 to adjust their height under the sliding structure of the guide groove 801 and the guide block 802, so as to make the drive of motor 6 more stable.

[0032] The mounting frame 9 is internally connected to a drive structure 12, which includes a grinding sleeve 1201, an adjusting head 1202, a reinforcing sleeve 1203, a clamping sleeve 1204, a fastening flange 1205, and an adjusting handle 1206. The grinding sleeve 1201 extends through the interior of the mounting frame 9. The adjusting head 1202 is installed at one end of the outer wall of the grinding sleeve 1201. A bearing body 13 is fitted on the outer side of the grinding sleeve 1201. A reinforcing sleeve 1203 is fitted on the outer side of the bearing body 13. A clamping sleeve 1204 is installed at one end of the reinforcing sleeve 1203. A fastening flange 1205 is installed at one end of the clamping sleeve 1204. An adjusting handle 1206 is installed on the outer side of the adjusting head 1202. The cross-sectional area of ​​the outer diameter of the grinding sleeve 1201 is smaller than that of the mounting frame 9, and it is a rotating structure. The outer side of the fastening flange 1205 and the adjusting handle 1206 are embedded in each other.

[0033] See attached document Figure 6 and Figure 7 When installing and using this ultra-precision machine, in order to make the disassembly and assembly of the bearing body 13 more convenient, the bearing body 13 can be directly fitted on the outside of the grinding tube sleeve 1201, and a reinforcing sleeve 1203 can be fitted on the outside of the bearing body 13. Under the action of the adjusting handle 1206, the adjusting head 1202 can be turned and blocked on the outside of the reinforcing sleeve 1203, so that the bearing body 13 can rotate but cannot move outward. When disassembling, the adjusting head 1202 can be turned on the adjusting handle 1206 to remove it.

[0034] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A bearing ultraprecision machine, comprising a base plate (1) and a base (2), characterized in that: A base (2) is fixedly connected to one side of the top of the base plate (1), and a side frame (5) is fixedly connected to one end of the other side of the top of the base plate (1); a first guide plate (3) is installed at the top of the base (2), and a guide structure (4) is provided above the base (2). The guide structure (4) includes a guide rail (401), a limiting piece (402), a plug rod (403), a rear cover plate (404), and a top cover (405). The guide rail (401) is installed at both ends of the top of the base (2), and a connecting frame (10) is provided on one side of the guide structure (4). A motor (6) is provided at one end of the side frame (5), and a first pulley (7) runs through the inside of the side frame (5). Adjustment structures (8) are provided on both sides of the inside of the side frame (5). A mounting frame (9) is provided at the other end of the side frame (5), and a second pulley (11) is provided at one end of the mounting frame (9). A drive structure (12) is rotatably connected inside the mounting frame (9), and a bearing body (13) is enclosed inside the drive structure (12). Limiting plates (402) are fixedly connected to both sides of the outer side wall of the guide rail (401). A rod (403) is inserted through the outer side of the guide rail (401). A rear cover plate (404) is installed on one side of the guide rail (401), and a top cover (405) is installed on the outer side of the guide rail (401). The limiting pieces (402) are symmetrically distributed on both sides of the outer wall of the guide rail (401). The guide rail (401) and the rear cover plate (404) have a sliding structure. The driving structure (12) includes a grinding sleeve (1201), an adjusting head (1202), a reinforcing sleeve (1203), a clamping sleeve (1204), a fastening flange (1205), and an adjusting handle. (1206) The grinding sleeve (1201) passes through the interior of the mounting bracket (9). An adjusting head (1202) is installed at one end of the outer wall of the grinding sleeve (1201). A bearing body (13) is sleeved on the outer side of the grinding sleeve (1201). A reinforcing sleeve (1203) is sleeved on the outer side of the bearing body (13). A retaining sleeve (1204) is installed at one end of the reinforcing sleeve (1203). A fastening flange (1205) is installed at one end of the retaining sleeve (1204). An adjusting handle (1206) is installed on the outer side of the adjusting head (1202).

2. The bearing ultraprecision machine according to claim 1, characterized in that: The adjustment structure (8) includes a guide groove (801), a guide block (802), a mounting plate (803), a support plate (804), a rotating head (805), and an adjustment screw (806). The guide groove (801) is opened on both sides inside the side frame (5). The guide block (802) is slidably connected inside the guide groove (801). One end of the guide block (802) is fixedly connected to the mounting plate (803).

3. The bearing ultraprecision machine according to claim 2, characterized in that: The top of the side frame (5) is fixedly connected to a support plate (804), and a rotating head (805) is rotatably connected inside the support plate (804). An adjusting screw (806) is fixedly connected to the bottom of the rotating head (805).

4. A bearing ultraprecision machine according to claim 2, characterized in that: The guide groove (801) and the guide block (802) are in a sliding structure, and the mounting plate (803) and the adjusting screw (806) are in a threaded connection structure.

5. A bearing ultraprecision machine according to claim 1, characterized in that: The cross-sectional area of ​​the outer diameter of the grinding sleeve (1201) is smaller than that of the mounting bracket (9), which has a rotating structure. The outer side of the fastening flange (1205) and the adjusting handle (1206) have an inlaid structure.

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