Bearing inner slide way polishing device

Abstract

The invention provides a bearing inner slide way polishing device which comprises a polishing table, the surface of the polishing table is provided with a movable bearing frame and a positioning bearing frame for supporting the bottom of a bearing, and the polishing table is used for positioning the bearing and polishing equipment; the driving component is used for driving the movable bearing frame and the positioning bearing frame, and the bearing rotates on the surfaces of the movable bearing frame and the positioning bearing frame; the movable sliding plate is slidably connected to the surface of the polishing table; the lifting plate is vertically and fixedly mounted on the surface of the movable sliding plate and used for adjusting the polishing height and displacement of the bearing; the polishing frame is connected to the surface of the lifting plate in a sliding manner and is used for driving and fixing a polishing wheel; the movable bearing frame and the positioning bearing frame are arranged to support the bottom of the bearing, the driving component is arranged to drive the movable bearing frame and the positioning bearing frame, so that the bearing can rotate along the movable bearing frame and the positioning bearing frame, the polishing range is enlarged, and the spline is arranged for limiting, so that the movable bearing frame can move along the driving shaft, and the driving function of the driving shaft is not affected.

Description

Technical Field

[0001] The invention belongs to the field of bearing polishing, in particular to a bearing inner slideway polishing device. Background Art

[0002] Polishing of shaft parts is an important step to ensure that the surface roughness reaches high standards. Bearings are important components of mechanical transmission, and the inner slide and outer ring are important parts of bearings. The precision and surface quality of the inner slide and outer ring have a great influence on the service life and performance of bearings. Therefore, during the production and processing, the inner slide and outer ring of the bearing need to be polished.

[0003] The main grinding tool for polishing the inner and outer rings of bearings is the grinding wheel. When selecting a grinding wheel, factors such as the grinding wheel grain size and grinding wheel hardness need to be considered. Generally speaking, a grinding wheel with fine grain size and high hardness can improve the surface quality of the inner and outer rings of bearings. When polishing the inner slideway of a bearing, pay attention to the following issues: When polishing, depending on the size of the bearing, you need to pay attention to the center of the bearing and the direction must be consistent to ensure the concentricity of the inner slide. When polishing, if the center of the circle cannot be kept horizontal, the grinding wheel will collide with the inner slide of the bearing. If a fixed polishing wheel is currently used, it will be conducive to polishing bearings of different sizes. If an adjustable one is used, the fixed position of the bearing needs to be adjusted according to the polishing wheel.

[0004] In summary, the present invention provides a bearing inner slideway polishing device to solve the above-mentioned problems. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a bearing inner slideway polishing device to solve the problems in the prior art that attention should be paid to the center of the bearing, the direction should be consistent, and the concentricity of the inner slideway should be ensured.

[0006] A bearing inner slideway polishing device: The polishing table has a movable bearing frame and a positioning bearing frame on its surface for supporting the bottom of the bearing, which are used to position the bearing and the polishing equipment; A driving component drives the movable bearing frame and the positioning bearing frame, and the bearing rotates on the surface of the movable bearing frame and the positioning bearing frame; The sliding plate is moved and slidably connected to the surface of the polishing table; A lifting plate, which is vertically and fixedly mounted on the surface of the moving slide, is used to adjust the height and displacement of the bearing polishing; A polishing frame is slidably connected to the surface of the lifting plate to drive and fix the polishing wheel; The two-stage adjustment mechanism is connected between the movable bearing frame and the movable slide plate, and is used to adjust the horizontal displacement of the lifting plate and the movable bearing frame. The lifting plate is aligned with the position of the inner diameter center axis of the bearing to be polished, and is always in the middle of the movable bearing frame and the positioning bearing frame; A top plate is installed on the top of the lifting plate, a double-axis cylinder is installed on the top of the top plate, a piston rod of the double-axis cylinder movably penetrates the top plate and is connected to a bearing positioning roller frame, and a bearing positioning roller is installed in the bearing positioning roller frame.

[0007] Furthermore, the driving component includes a driving shaft, a driving shaft frame and a driving motor, the driving shaft is arranged at the same end of the movable bearing frame and the positioning bearing frame, the driving shaft frame and the driving motor are installed on the surface of the polishing table, the driving shaft is rotatably connected to the driving shaft frame, and the driving motor is arranged at one end of the driving shaft and connected to the driving shaft through a coupling.

[0008] Furthermore, the movable bearing frame includes a movable slide, the bottom of the movable slide is slidably arranged in a bearing frame slide groove opened on the surface of the polishing table, the surface of the movable slide is rotatably connected to a movable bearing guide roller through a guide shaft, one end of the guide shaft movably passes through the movable slide and is fixedly connected to a movable guide roller gear, and a meshing movable gear is vertically arranged on one side of the movable guide roller gear.

[0009] Furthermore, an "L"-shaped gear frame is fixedly connected to one side of the movable slide close to the movable guide roller gear, and the meshing movable gear is rotatably connected to the gear frame via a rotating shaft. The meshing movable gear and the movable guide roller gear are bevel gears and are meshingly connected. A matching through hole is provided in the middle of the rotating shaft, and the driving shaft movably passes through the matching through hole, and a spline strip is provided on the surface of the driving shaft and is matched with the matching through hole.

[0010] Furthermore, the positioning bearing frame includes a positioning frame, a positioning bearing roller and a meshing gear assembly. The positioning frame is installed on a polishing table, and the positioning bearing roller is rotatably installed on the surface of the positioning frame. The meshing gear assembly includes a matching bevel gear 1 and a matching bevel gear 2. The middle part of the matching bevel gear 2 is vertically connected to the surface of the driving shaft. The positioning bearing roller passes through the power shaft, movably penetrates the positioning frame, and is fixedly connected to the matching bevel gear 1. The matching bevel gear 1 is vertically meshed with the matching bevel gear 2.

[0011] Furthermore, the two-stage adjustment mechanism includes a locking tooth plate, a movable tooth plate and a two-stage gear, one end of the movable tooth plate is fixedly connected to the movable slide, the bottom of the movable tooth plate is slidably connected to the polishing table, the locking tooth plate is installed on the polishing table and is arranged opposite to the teeth on the movable tooth plate, the two-stage gear is arranged between the locking tooth plate and the movable tooth plate, one side surface of the two-stage gear is rotatably connected to the bottom of the movable slide through a gear shaft, and the two-stage gear is respectively meshed and connected to the locking tooth plate and the movable tooth plate.

[0012] Furthermore, two track bars are installed on the polishing table, and slides are slidably connected to the track bars respectively. The movable slide plate is fixedly connected to the surface of the slide, and one end of the gear shaft is rotatably connected to the side wall of one of the slides.

[0013] Furthermore, the polishing frame includes a polishing positioning plate, which is rotatably connected to a rotating sleeve, one end of the rotating sleeve passes through the polishing positioning plate, a rotating shaft rod is movably provided in the rotating sleeve, the rotating shaft rod and the rotating sleeve are a spline shaft and a spline sleeve, and a longitudinal key strip is provided on the surface of the rotating shaft rod, a servo motor is installed on the side of the polishing positioning plate close to the movable bearing frame, one end of the servo motor movably passes through the polishing positioning plate and is fixedly connected to a power wheel, the power wheel is connected to the surface of the rotating sleeve by a belt drive, a cylinder frame is installed on the side of the polishing positioning plate away from the movable bearing frame, a hydraulic rod is installed on the cylinder frame, the piston rod of the hydraulic rod passes through the cylinder frame and is rotatably connected to one end of the rotating shaft rod, and a polishing wheel is installed on the other end of the rotating shaft rod.

[0014] Furthermore, a slide groove is opened on the lifting plate along its length direction, the polishing positioning plate is slidably connected in the slide groove, and a locking screw is connected to the top of the polishing positioning plate. One end of the locking screw passes through the top of the lifting plate and passes out from the top of the slide groove, and is rotatably connected to the surface of the polishing positioning plate. The locking screw is connected to the polishing positioning plate by threads.

[0015] Furthermore, a locking hydraulic rod is installed on the surface of the polishing table, and a piston rod of the locking hydraulic rod is fixedly connected to the bottom of the moving slide plate.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention supports the bottom of the bearing by providing a movable bearing frame and a positioning bearing frame, and drives the two by providing a driving component so that the bearing can rotate along the two to increase the polishing range, and provides a spline limiter so that the movable bearing frame can move along the drive shaft without affecting the drive function of the drive shaft.

[0017] 2. The present invention provides a two-stage adjustment mechanism, which can double the position of the movable bearing frame according to the spacing when adjusting the position of the lifting plate, so that the lifting plate is always maintained between the movable bearing frame and the positioning bearing frame. Therefore, the center axis of the bearing is always in the length direction of the lifting plate. By adjusting the height of the polishing frame on the lifting plate, the position of the center of the circle can be further determined to prevent eccentricity during polishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The present invention is a three-dimensional Figure 1 ; Figure 2 The present invention is a three-dimensional Figure 2 ; Figure 3 is a three-dimensional diagram of the driving component of the present invention; Figure 4 It is a three-dimensional diagram of the two-stage adjustment mechanism of the present invention; Figure 5 is a three-dimensional diagram of the polishing table of the present invention; Figure 6 This is a disassembled diagram of the polishing frame of the present invention; Figure 7 It is a three-dimensional diagram of a lifting plate of the present invention.

[0019] In the figure: 1. Polishing table; 2. Lifting plate; 3. Polishing frame; 301. Polishing positioning plate; 302. Cylinder frame; 303. Rotating sleeve; 304. Rotating shaft rod; 305. Servo motor; 306. Hydraulic rod; 307. Locking screw; 4. Top plate; 5. Driving component; 501. Driving shaft; 502. Driving shaft frame; 503. Driving motor; 6. Two-stage adjustment mechanism; 601. Locking gear plate; 602. Moving gear plate; 603. Two-stage gear; 7. Mobile bearing frame; 701. Mobile slide; 702. Mobile bearing guide roller; 703. Mobile guide roller gear; 704. Engaging mobile gear; 8. Positioning bearing frame; 801. Positioning frame; 802. Positioning bearing roller; 803. Matching bevel gear one; 804. Matching bevel gear two; 9. Mobile slide plate; 10. Slide; 11. Track bar; 12. Bearing frame slide; 13. Locking hydraulic rod; 14. Bearing positioning roller; 15. Double-axis cylinder. DETAILED DESCRIPTION

[0020] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figure 1-Figure 7 As shown, the present invention provides a bearing inner slideway polishing device: The polishing table 1 is provided with a movable bearing frame 7 and a positioning bearing frame 8 for supporting the bottom of the bearing, and is used to position the bearing and the polishing equipment; The driving component 5 drives the movable bearing frame 7 and the positioning bearing frame 8, and the bearings rotate on the surfaces of the movable bearing frame 7 and the positioning bearing frame 8; A movable slide plate 9 is slidably connected to the surface of the polishing table 1; A lifting plate 2, vertically and fixedly mounted on the surface of the moving slide plate 9, is used to adjust the height and displacement of the bearing polishing; The polishing frame 3 is slidably connected to the surface of the lifting plate 2 to drive and fix the polishing wheel; The second-stage adjustment mechanism 6 is connected between the movable bearing frame 7 and the movable slide plate 9, and is used to adjust the horizontal displacement of the lifting plate 2 and the movable bearing frame 7. The lifting plate 2 is aligned with the position of the inner diameter center axis of the bearing to be polished, and is always in the middle of the movable bearing frame 7 and the positioning bearing frame 8; The top plate 4 is installed on the top of the lifting plate 2. A double-axis cylinder 15 is installed on the top of the top plate 4. The piston rod of the double-axis cylinder 15 movably passes through the top plate 4 and is connected to a bearing positioning roller frame. A bearing positioning roller 14 is installed in the bearing positioning roller frame.

[0022] As an embodiment of the present invention, the driving component 5 includes a driving shaft 501, a driving shaft frame 502 and a driving motor 503, the driving shaft 501 is arranged at the same end of the movable bearing frame 7 and the positioning bearing frame 8, the driving shaft frame 502 and the driving motor 503 are installed on the surface of the polishing table 1, the driving shaft 501 is rotatably connected to the driving shaft frame 502, and the driving motor 503 is arranged at one end of the driving shaft 501 and is connected to the driving shaft 501 through a coupling.

[0023] As an embodiment of the present invention, the movable bearing frame 7 includes a movable slide 701, the bottom of the movable slide 701 is slidably set in the bearing frame slide groove 12 opened on the surface of the polishing table 1, the surface of the movable slide 701 is rotatably connected to the movable bearing guide roller 702 through the guide shaft, one end of the guide shaft movably passes through the movable slide 701, and is fixedly connected to the movable guide roller gear 703, and a meshing movable gear 704 is vertically set on one side of the movable guide roller gear 703.

[0024] As an embodiment of the present invention, an "L"-shaped gear frame is fixedly connected to one side of the movable slide 701 close to the movable guide roller gear 703, and the meshing movable gear 704 is rotatably connected to the gear frame through a rotating shaft. The meshing movable gear 704 and the movable guide roller gear 703 are bevel gears and are meshingly connected. A matching through hole is opened in the middle of the rotating shaft, and the driving shaft 501 movably passes through the matching through hole, and a spline strip is provided on the surface of the driving shaft 501 and is matched with the matching through hole.

[0025] Among them, Figure 3 , a matching through hole passes through the gear frame, and the driving shaft 501 passes through the middle of the gear frame. When the movable bearing frame 7 moves left and right, the meshing movable gear 704 also moves back and forth on the surface of the driving shaft 501. When the driving motor 503 drives the driving shaft 501, the driving shaft 501 can drive the meshing movable gear 704 to rotate through the spline bar, and at the same time does not affect the meshing movable gear 704 moving back and forth on the driving shaft 501. When the meshing movable gear 704 rotates, it can drive the movable guide roller gear 703 to rotate, thereby realizing the rotation of the movable bearing guide roller 702 on the movable bearing frame 7.

[0026] As an embodiment of the present invention, the positioning bearing frame 8 includes a positioning frame 801, a positioning bearing roller 802 and a meshing gear assembly. The positioning frame 801 is installed on the polishing table 1, and the positioning bearing roller 802 is rotatably installed on the surface of the positioning frame 801. The meshing gear assembly includes a matching bevel gear 1 803 and a matching bevel gear 2 804. The middle part of the matching bevel gear 2 804 is vertically connected to the surface of the driving shaft 501. The positioning bearing roller 802 passes through the power shaft, movably penetrates the positioning frame 801, and is fixedly connected to the matching bevel gear 1 803. The matching bevel gear 1 803 is vertically meshed with the matching bevel gear 2 804.

[0027] Among them, Figure 1 The positioning bearing frame 8 is arranged corresponding to the movable bearing frame 7, the positioning bearing roller 802 and the movable bearing guide roller 702 are parallel, supported on the outer wall of the bearing, and cooperate with the bearing positioning roller 14 at the upper end to form a clamping structure in three directions to clamp the outer periphery of the bearing.

[0028] As an embodiment of the present invention, the two-stage adjustment mechanism 6 includes a locking tooth plate 601, a moving tooth plate 602 and a two-stage gear 603. One end of the moving tooth plate 602 is fixedly connected to the moving slide 701, and the bottom of the moving tooth plate 602 is slidably connected to the polishing table 1. The locking tooth plate 601 is installed on the polishing table 1 and is arranged opposite to the teeth on the moving tooth plate 602. The two-stage gear 603 is arranged between the locking tooth plate 601 and the moving tooth plate 602. One side surface of the two-stage gear 603 is rotatably connected to the bottom of the moving slide 9 through a gear shaft, and the two-stage gear 603 is respectively meshed and connected to the locking tooth plate 601 and the moving tooth plate 602.

[0029] Among them, Figure 4The movable tooth plate 602 is arranged parallel to the locking tooth plate 601. When the second-stage gear 603 moves, the movable tooth plate 602 is first pushed forward. Secondly, the locking tooth plate 601 is fixed. Therefore, when the second-stage gear 603 translates, the second-stage gear 603 will rotate along the locking tooth plate 601, further pushing the movable tooth plate 602 to move forward or backward, and move at a double pitch.

[0030] As an embodiment of the present invention, two track bars 11 are installed on the polishing table 1, and slides 10 are slidably connected to the track bars 11 respectively. The movable slide 9 is fixedly connected to the surface of the slide 10, and one end of the gear shaft is rotatably connected to the side wall of one of the slides 10.

[0031] Among them, Figure 4-Figure 5 The slide 10 slides on the track bar 11, and the slide drives the gear shaft to move forward and backward, thereby driving the second-stage gear 603 to move forward and backward. When the moving slide plate 9 is pushed to translate, the displacement of the moving bearing frame 7 can be adjusted, and the lifting plate 2 always remains in the middle position between the moving bearing frame 7 and the positioning bearing frame 8.

[0032] As an embodiment of the present invention, the polishing frame 3 includes a polishing positioning plate 301, on which a rotating sleeve 303 is rotatably connected, one end of the rotating sleeve 303 passes through the polishing positioning plate 301, and a rotating shaft rod 304 is movably arranged in the rotating sleeve 303, the rotating shaft rod 304 and the rotating sleeve 303 are a spline shaft and a spline sleeve, and the surface of the rotating shaft rod 304 is provided with a longitudinal key strip, a servo motor 305 is installed on the side of the polishing positioning plate 301 close to the movable bearing frame 7, one end of the servo motor 305 movably passes through the polishing positioning plate 301 and is fixedly connected to a power wheel, the power wheel and the surface of the rotating sleeve 303 are connected by a belt drive, a cylinder frame 302 is installed on the side of the polishing positioning plate 301 away from the movable bearing frame 7, a hydraulic rod 306 is installed on the cylinder frame 302, the piston rod of the hydraulic rod 306 passes through the cylinder frame 302, and is rotatably connected to one end of the rotating shaft rod 304, and a polishing wheel is installed on the other end of the rotating shaft rod 304.

[0033] As an embodiment of the present invention, a slide groove is opened on the lifting plate 2 along its length direction, and the polishing positioning plate 301 is slidably connected in the slide groove. A locking screw 307 is connected to the top of the polishing positioning plate 301. One end of the locking screw 307 passes through the top of the lifting plate 2 and passes out from the top of the slide groove, and is rotatably connected to the surface of the polishing positioning plate 301. The locking screw 307 is connected to the polishing positioning plate 301 by threads.

[0034] Among them, Figure 6The locking screw 307 rotates, driving the polishing positioning plate 301 to move up and down, thereby adjusting the height of the polishing wheel. The polishing wheel can be driven to rotate by the servo motor 305. When the servo motor 305 is started, it drives the power wheel to rotate, and then the belt rotating sleeve 303 rotates, so that the polishing wheel follows the rotation. The hydraulic rod pushes the polishing wheel to move back and forth, and moves back and forth inside the slideway in the bearing, and multi-displacement polishing is performed.

[0035] As an embodiment of the present invention, a locking hydraulic rod 13 is installed on the surface of the polishing table 1 , and the piston rod of the locking hydraulic rod 13 is fixedly connected to the bottom of the moving slide 9 .

[0036] Among them, Figure 7 , the locking hydraulic rod 13 is started, pushing the moving slide plate 9 to move, thereby adjusting the position of the moving bearing frame 7 and the lifting plate 2.

[0037] When polishing the bearing, first place the bearing between the movable bearing frame 7 and the positioning bearing frame 8, the outer wall of the bearing and the movable bearing guide roller 702 and the positioning bearing roller 802, use the driving motor 503 to drive the driving shaft 501 to rotate, and then drive the movable bearing guide roller 702 and the positioning bearing roller 802, the top of the bearing is restricted by the liftable bearing positioning roller 14, and the surfaces of the movable bearing guide roller 702, the positioning bearing roller 802 and the bearing positioning roller 14 are all covered with anti-slip sleeves to prevent the bearing from shifting.

[0038] When adjusting according to the size of the bearing, the locking hydraulic rod 13 can be used to push the entire lifting plate 2 to move, and the position of the movable bearing frame 7 can be adjusted by using the two-stage adjustment mechanism 6, and then the rotation of the locking screw 307 can be used to drive the polishing positioning plate 301 to move on the lifting plate 2, and adjust according to the center height of the bearing; During polishing, the servo motor 305 is used to drive the rotating sleeve 303 to rotate, and the locking screw 307 pushes the rotating shaft 304 to move back and forth, so that the polishing wheel can move back and forth inside the inner slideway of the bearing and perform polishing.

[0039] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A bearing inner slideway polishing device, characterized in that: A polishing table (1) is provided with a movable bearing frame (7) and a positioning bearing frame (8) on its surface for supporting the bottom of the bearing, and is used for positioning the bearing and the polishing equipment; A driving component (5) drives the movable bearing frame (7) and the positioning bearing frame (8), so that the bearings rotate on the surfaces of the movable bearing frame (7) and the positioning bearing frame (8); A movable slide plate (9) slidably connected to the surface of the polishing table (1); A lifting plate (2) is vertically and fixedly mounted on the surface of the moving slide plate (9) and is used to adjust the height and displacement of the bearing polishing; A polishing frame (3) is slidably connected to the surface of the lifting plate (2) to drive and fix the polishing wheel; A two-stage adjustment mechanism (6) connected between the movable bearing frame (7) and the movable slide plate (9) for adjusting the horizontal displacement of the lifting plate (2) and the movable bearing frame (7), wherein the lifting plate (2) is aligned with the position of the inner diameter center axis of the bearing to be polished and is always located in the middle of the movable bearing frame (7) and the positioning bearing frame (8); A top plate (4) is mounted on the top of the lifting plate (2), a double-axis cylinder (15) is mounted on the top of the top plate (4), a piston rod of the double-axis cylinder (15) movably passes through the top plate (4) and is connected to a bearing positioning roller frame, and a bearing positioning roller (14) is mounted in the bearing positioning roller frame.

2. The bearing inner slideway polishing device according to claim 1, characterized in that: The driving component (5) comprises a driving shaft (501), a driving shaft frame (502) and a driving motor (503); the driving shaft (501) is arranged at the same end of the movable bearing frame (7) and the positioning bearing frame (8); the driving shaft frame (502) and the driving motor (503) are mounted on the surface of the polishing table (1); the driving shaft (501) is rotatably connected to the driving shaft frame (502); and the driving motor (503) is arranged at one end of the driving shaft (501) and is connected to the driving shaft (501) via a coupling.

3. The bearing inner slideway polishing device according to claim 1, characterized in that: The movable bearing frame (7) comprises a movable slide (701), the bottom of the movable slide (701) being slidably arranged in a bearing frame slide groove (12) provided on the surface of the polishing table (1), the surface of the movable slide (701) being rotatably connected to a movable bearing guide roller (702) via a guide shaft, one end of the guide shaft movably passing through the movable slide (701) and being fixedly connected to a movable guide roller gear (703), and a meshing movable gear (704) being vertically arranged on one side of the movable guide roller gear (703).

4. The bearing inner slideway polishing device as claimed in claim 3, characterized in that: An "L"-shaped gear rack is fixedly connected to one side of the movable slide (701) close to the movable guide roller gear (703); the meshing movable gear (704) is rotatably connected to the gear rack via a rotating shaft; the meshing movable gear (704) and the movable guide roller gear (703) are bevel gears and are meshingly connected; a matching through hole is provided in the middle of the rotating shaft; the driving shaft (501) movably penetrates the matching through hole; and a spline strip is provided on the surface of the driving shaft (501) and is matched with the matching through hole.

5. The bearing inner slideway polishing device as claimed in claim 2, characterized in that: The positioning bearing frame (8) comprises a positioning frame (801), a positioning bearing roller (802) and a meshing gear assembly. The positioning frame (801) is mounted on the polishing table (1). The positioning bearing roller (802) is rotatably mounted on the surface of the positioning frame (801). The meshing gear assembly comprises a matching bevel gear 1 (803) and a matching bevel gear 2 (804). The middle portion of the matching bevel gear 2 (804) is vertically connected to the surface of the driving shaft (501). The positioning bearing roller (802) movably penetrates the positioning frame (801) through the power shaft and is fixedly connected to the matching bevel gear 1 (803). The matching bevel gear 1 (803) is vertically meshed with the matching bevel gear 2 (804).

6. The bearing inner slideway polishing device as claimed in claim 3, characterized in that: The two-stage adjustment mechanism (6) comprises a locking tooth plate (601), a movable tooth plate (602) and a two-stage gear (603); one end of the movable tooth plate (602) is fixedly connected to the movable slide (701); the bottom of the movable tooth plate (602) is slidably connected to the polishing table (1); the locking tooth plate (601) is mounted on the polishing table (1) and is arranged opposite to the teeth on the movable tooth plate (602); the two-stage gear (603) is arranged between the locking tooth plate (601) and the movable tooth plate (602); one side surface of the two-stage gear (603) is rotatably connected to the bottom of the movable slide (9) via a gear shaft; the two-stage gear (603) is meshedly connected to the locking tooth plate (601) and the movable tooth plate (602), respectively.

7. The bearing inner slideway polishing device as claimed in claim 6, characterized in that: Two track bars (11) are installed on the polishing table (1), and slide tables (10) are slidably connected to the track bars (11), respectively. The movable slide plate (9) is fixedly connected to the surface of the slide table (10), and one end of the gear shaft is rotatably connected to the side wall of one of the slide tables (10).

8. The bearing inner slideway polishing device according to claim 1, characterized in that: The polishing frame (3) comprises a polishing positioning plate (301), a rotating sleeve (303) is rotatably connected to the polishing positioning plate (301), one end of the rotating sleeve (303) passes through the polishing positioning plate (301), a rotating shaft (304) is movably arranged in the rotating sleeve (303), the rotating shaft (304) and the rotating sleeve (303) are a spline shaft and a spline sleeve, and a longitudinal key strip is arranged on the surface of the rotating shaft (304), and a servo motor (305) is installed on the side of the polishing positioning plate (301) close to the movable bearing frame (7). ), one end of the servo motor (305) movably passes through the polishing positioning plate (301) and is fixedly connected to a power wheel, the power wheel is connected to the surface of the rotating shaft sleeve (303) through a belt drive, a cylinder frame (302) is installed on the side of the polishing positioning plate (301) away from the movable bearing frame (7), a hydraulic rod (306) is installed on the cylinder frame (302), a piston rod of the hydraulic rod (306) passes through the cylinder frame (302) and is rotatably connected to one end of a rotating shaft rod (304), and a polishing wheel is installed on the other end of the rotating shaft rod (304).

9. The bearing inner slideway polishing device as claimed in claim 8, characterized in that: The lifting plate (2) is provided with a slideway groove along its length direction, the polishing positioning plate (301) is slidably connected in the slideway groove, the top of the polishing positioning plate (301) is connected with a locking screw (307), one end of the locking screw (307) penetrates through the top of the lifting plate (2) and passes out from the top of the slideway groove, and is rotatably connected to the surface of the polishing positioning plate (301), and the locking screw (307) is connected to the polishing positioning plate (301) by means of threads.

10. The bearing inner slideway polishing device according to claim 1, characterized in that: A locking hydraulic rod (13) is installed on the surface of the polishing table (1), and a piston rod of the locking hydraulic rod (13) is fixedly connected to the bottom of the moving slide plate (9).

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