End face grinding mechanism for bearing end cover

Abstract

The utility model discloses an end face polishing mechanism of a bearing end cover, which comprises a rack, a central through hole is formed in the middle of a top plate of the rack, a spline sleeve is inserted and sleeved in the central through hole, the outer side wall of the spline sleeve is welded and fixed on the inner side wall of the central through hole, and a vertically extending central spline through hole is formed in the middle of the spline sleeve. A spline bulge on the outer side wall of the main spline shaft is inserted into a spline groove in the inner side wall of the central spline through hole and is matched with the spline groove; the polishing device can automatically polish and is good in polishing effect.

Description

Technical field:

[0001] The utility model relates to the technical field of sliding bearing processing equipment, and more specifically to an end surface grinding mechanism of a bearing end cover. Background technology:

[0002] Both ends of the sliding bearing are provided with sealing end covers, i.e. bearing end covers, which can prevent the internal lubricating oil from leaking;

[0003] During the manufacturing process of the bearing end cover, it is first processed by casting or forging, and then machined by a machine tool to make it into a component corresponding to the design size. Among them, it has a ring-shaped end face, which is used to be installed on the bearing body. Therefore, the precision requirement of this end face is relatively high. Generally, after the machining is completed, the roughness of the end face cannot meet the requirements, and there are burrs, etc., so manual grinding is required. Manual grinding generally uses a polishing machine, which is relatively inefficient and requires a large amount of manual labor. Utility model content:

[0004] The utility model aims to overcome the deficiencies of the prior art and provides an end face grinding mechanism for a bearing end cover, which can grind automatically and has a good grinding effect.

[0005] The solution of the utility model to solve the technical problem is:

[0006] A bearing end cover end surface grinding mechanism comprises a frame, a central through hole is formed in the middle of a top plate of the frame, a spline sleeve is inserted into the central through hole, an outer wall of the spline sleeve is welded and fixed to an inner wall of the central through hole, a vertically extending central spline through hole is formed in the middle of the spline sleeve, a main spline shaft is inserted into the spline sleeve, a spline protrusion on the outer wall of the main spline shaft is inserted into a spline groove on the inner wall of the central spline through hole and matched with the spline groove;

[0007] The top end of the main spline shaft extends out of the top end of the spline sleeve and is fixed with a horizontal support plate, and the top surface of the horizontal support plate is fixed with a bearing end cover to be processed;

[0008] An intermediate horizontal plate is fixed at the lower part of the frame, and a vertical rotating shaft is movably connected to the middle part of the intermediate horizontal plate through a bearing, and the upper part of the vertical rotating shaft is a stud, which is screwed into a screw hole in the middle part of the bottom surface of the main spline shaft, and the bottom of the vertical rotating shaft extends out of the bottom surface of the intermediate horizontal plate and is fixed with a lower transmission gear, and a lower horizontal plate is provided below the intermediate horizontal plate, and a lifting servo motor is fixed on the bottom surface of the lower horizontal plate, and the top end of the output shaft of the lifting servo motor extends out of the lower horizontal plate and is fixed with a driving gear, and the driving gear is meshed with the lower transmission gear;

[0009] An upper support frame is fixed to the top surface of the top plate of the frame, a lifting cylinder is fixed to the middle of the top surface of the top plate of the upper support frame, the bottom end of the push rod of the lifting cylinder extends out of the bottom surface of the top plate of the upper support frame and is fixed with a lifting plate, an annular guide rail is fixed to the bottom surface of the lifting plate, the moving trolley is installed on the annular guide rail, a grinding motor is installed at the bottom of the moving trolley, a grinding head is fixed on the bottom output shaft of the grinding motor, and the bottom end of the grinding head faces the top surface of the bearing end cover.

[0010] A circular concave hole is formed in the middle of the top surface of the horizontal support plate, the limit plate is inserted into the circular concave hole, the outer wall of the limit plate is close to the inner wall of the circular concave hole, the limit plate is fixedly connected to the bottom surface of the circular concave hole by bolts, an annular raised ring is formed on the edge of the top surface of the limit plate, the bottom surface of the bearing end cover is pressed against the top surface of the limit plate, and the outer wall of the bearing end cover is close to the inner wall of the annular raised ring.

[0011] The front, rear, left and right parts of the top surface of the horizontal support plate are fixed with side clamping cylinders, the ends of the push rods of the side clamping cylinders are fixed with clamping blocks, the bottom surfaces of the clamping blocks are fixed with sliding blocks, and a plurality of guide rails are fixed on the top surface of the horizontal support plate below the clamping blocks, and the upper parts of the guide rails are inserted into the slide grooves formed on the bottom surfaces of the corresponding sliding blocks.

[0012] An anti-sliding block is fixed on the inner end surface of the clamping block, and the inner wall surface of the anti-sliding block is an arc-shaped wall surface, which is pressed against the outer side wall of the bearing end cover.

[0013] The outer side wall and the inner side wall of the annular guide rail are formed with a raised ring with a V-shaped cross section arranged transversely;

[0014] The mobile trolley includes a horizontal connecting plate of the trolley, and four guide wheels are movably connected to the top surface of the horizontal connecting plate of the trolley through a hinge shaft. An annular groove is laterally arranged in the middle of the guide wheel, and the cross-section of the annular groove is also a V-shape, which corresponds to the raised circle. The outer raised circle is inserted into the annular grooves of the two outer guide wheels, and the inner raised circle is inserted into the annular grooves of the two inner guide wheels. The annular groove corresponds to and cooperates with the raised circle. With this structure, the guide wheel can move along the annular guide rail.

[0015] A driving motor is fixed on the top surface of the horizontal connecting plate of the trolley, a rotating gear is fixed on the upper output shaft of the driving motor, an annular gear ring is fixed on the upper part of the inner wall of the annular guide rail, and the rotating gear is meshed with the inner tooth portion of the annular gear ring.

[0016] A horizontal plate is fixed to the bottom of the horizontal connecting plate of the trolley, and vertical plates are fixed to the left and right parts of the bottom of the horizontal plate. Both ends of the horizontal moving screw are movably connected to the two vertical plates through bearings. A moving motor is fixed to the outer wall of one of the vertical plates. The moving motor drives the horizontal moving screw to rotate, and the moving block is screwed to the horizontal moving screw. The moving motor can be operated to realize the moving block to move left and right.

[0017] The outstanding effects of the utility model are:

[0018] It clamps and fixes the bearing end cover through four side clamping cylinders, can adjust the height, and can automatically grind with good grinding effect, greatly reducing the amount of manual labor. Description of the drawings:

[0019] Figure 1 It is a partial structural schematic diagram of the utility model;

[0020] Figure 2 yes Figure 1 A partial enlarged view of

[0021] Figure 3 yes Figure 1 a partial enlarged view of another part;

[0022] Figure 4 It is a partial top view of the horizontal support plate. Specific implementation method:

[0023] For example, see Figures 1 to 4 As shown, an end face grinding mechanism of a bearing end cover comprises a frame 10, a central through hole 11 is formed in the middle of a top plate of the frame 10, a spline sleeve 12 is inserted into the central through hole 11, an outer side wall of the spline sleeve 12 is welded and fixed to the inner side wall of the central through hole 11, a vertically extending central spline through hole is formed in the middle of the spline sleeve 12, a main spline shaft 13 is inserted into the spline sleeve 12, and a spline protrusion on the outer side wall of the main spline shaft 13 is inserted into a spline groove on the inner side wall of the central spline through hole and matches with the spline groove;

[0024] The top end of the main spline shaft 13 extends out of the top end of the spline sleeve 12 and is fixed with a horizontal support plate 14, and the bearing end cover 100 to be processed is fixed on the top surface of the horizontal support plate 14;

[0025] An intermediate horizontal plate is fixed to the lower part of the frame 10, and a vertical rotating shaft 15 is movably connected to the middle part of the intermediate horizontal plate through a bearing. The upper part of the vertical rotating shaft 15 is a stud, which is screwed in the screw hole in the middle part of the bottom surface of the main spline shaft 13. The bottom of the vertical rotating shaft 15 extends out of the bottom surface of the intermediate horizontal plate and is fixed with a lower transmission gear 16. A lower horizontal plate is provided below the intermediate horizontal plate, and a lifting servo motor 17 is fixed to the bottom surface of the lower horizontal plate. The top end of the output shaft of the lifting servo motor 17 extends out of the lower horizontal plate and is fixed with a driving gear 171, which is meshed with the lower transmission gear 16. With the above structure, it can be operated by the lifting servo motor 17, so that the driving wheel 171 drives the lower transmission gear 16 to rotate, so that the vertical rotating shaft 15 rotates, thereby realizing the up and down movement of the main spline shaft 13 and the height adjustment of the horizontal support plate 14.

[0026] Furthermore, an upper support frame 20 is fixed to the top surface of the top plate of the frame 10, a lifting cylinder 21 is fixed to the middle of the top surface of the top plate of the upper support frame 20, the bottom end of the push rod of the lifting cylinder 21 extends out of the bottom surface of the top plate of the upper support frame 20 and is fixed with a lifting plate 22, a plurality of upper vertical guide rods 221 are fixed to the top surface of the lifting plate 22, and the upper vertical guide rods 221 are inserted into the corresponding guide through holes on the top plate of the upper support frame 20;

[0027] A circular guide rail 23 is fixed to the bottom surface of the lifting plate 22, and the moving trolley 30 is installed on the circular guide rail 23. A grinding motor 40 is installed at the bottom of the moving trolley 30, and a grinding head 41 is fixed on the bottom output shaft of the grinding motor 40, and the bottom end of the grinding head 41 faces the top end surface of the bearing end cover 100.

[0028] An annular limit plate 131 is fixed to the bottom end surface of the main spline shaft 13, and the diameter of the outer wall of the annular limit plate 131 is larger than the outer diameter of the spline sleeve 12; the annular limit plate 131 can limit the rising distance of the main spline shaft 13 to prevent excessive lifting.

[0029] A plurality of vertical guide posts 141 are fixed to the bottom surface of the edge of the horizontal support plate 14, and the vertical guide posts 141 are inserted into the guide holes formed on the top plate of the frame 10. An inner guide sleeve is fixed to the inner side wall of the guide hole, and the vertical guide posts 141 are inserted into the corresponding inner guide sleeve, and the outer side wall of the vertical guide post 141 is in close contact with the inner side wall of the corresponding inner guide sleeve.

[0030] Furthermore, a circular concave hole is formed in the middle of the top surface of the horizontal support plate 14, the limiting plate is inserted into the circular concave hole, the outer wall of the limiting plate is closely attached to the inner wall of the circular concave hole, the limiting plate is fixedly connected to the bottom surface of the circular concave hole by bolts, the edge of the top surface of the limiting plate is formed with an annular raised ring 1, the bottom surface of the bearing end cover 100 is pressed against the top surface of the limiting plate, and the outer wall of the bearing end cover 100 is closely attached to the inner wall of the annular raised ring 1. The limiting plate can be replaced as needed, so that the inner diameter of the annular raised ring 1 on the corresponding limiting plate matches the outer diameter on the outer wall of the bearing end cover 100 to be processed, so as to meet the processing and use of a certain specification of the bearing end cover 100 with a small difference in outer diameter.

[0031] Furthermore, the front, rear, left and right parts of the top surface of the horizontal support plate 14 are fixed with side clamping cylinders 142, the ends of the push rods of the side clamping cylinders 142 are fixed with clamping blocks 143, the bottom surface of the clamping block 143 is fixed with a slider 144, and a plurality of guide rails 145 are fixed on the top surface of the horizontal support plate 14 below the clamping block 144, and the upper part of the guide rails 145 are inserted into the slide grooves formed on the bottom surfaces of the corresponding sliders 144.

[0032] An anti-sliding block 146 is fixed to the inner end surface of the pressing block 143 . The inner wall surface of the anti-sliding block 146 is an arc-shaped wall surface, which is pressed against the outer wall of the bearing end cover 100 .

[0033] The outer side wall and the inner side wall of the annular guide rail 23 are formed with a raised ring with a V-shaped cross section arranged transversely;

[0034] The mobile trolley 30 includes a trolley horizontal connecting plate 31, and four guide wheels 32 are movably connected to the top surface of the trolley horizontal connecting plate 31 through a hinge shaft. An annular groove is horizontally provided in the middle of the guide wheel 32, and the cross section of the annular groove is also V-shaped, which corresponds to the raised ring. The outer raised ring is inserted into the annular grooves of the two outer guide wheels 32, and the inner raised ring is inserted into the annular grooves of the two inner guide wheels 32. The annular groove corresponds to and matches the raised ring.

[0035] A driving motor 33 is fixed to the top surface of the trolley horizontal connecting plate 31 , a rotating gear 34 is fixed to the upper output shaft of the driving motor 33 , an annular gear ring 231 is fixed to the upper portion of the inner wall of the annular guide rail 23 , and the rotating gear 34 meshes with the inner teeth of the annular gear ring 231 .

[0036] A transverse horizontal plate 35 is fixed to the bottom surface of the trolley horizontal connecting plate 31, and vertical plates are fixed to the left and right parts of the bottom surface of the transverse horizontal plate 35. The two ends of the transverse moving screw 36 are movably connected to the two vertical plates through bearings, and a moving motor 37 is fixed to the outer wall of one of the vertical plates. The output shaft of the moving motor 37 is a spline shaft, which is inserted into the spline hole at one end of the transverse moving screw 36 and drives the transverse moving screw 36 to rotate. The moving block 361 is screwed on the transverse moving screw 36, and the top surface of the moving block 361 is fixed with an upper sliding block 362. The bottom surface of the transverse horizontal plate 35 is fixed with a transverse guide rail 351, and the transverse guide rail 351 is inserted into the arc guide groove formed on the top surface of the upper sliding block 362.

[0037] When this embodiment is used, a limiting plate matching with the bearing end cover 100 to be processed is first installed at the circular concave hole, and then the bearing end cover 100 to be processed is inserted into the annular raised ring 1 of the limiting plate, the bottom surface of the bearing end cover 100 is pressed against the top surface of the limiting plate, and the outer wall of the bearing end cover 100 is tightly attached to the inner wall of the annular raised ring 1, so as to achieve limiting;

[0038] Then, the push rods of all side clamping oil cylinders 142 are pushed so that the inner wall surface of the anti-sliding block 146 is pressed against the outer wall of the bearing end cover 100 to achieve clamping and fixing;

[0039] Then, the push rod of the lifting cylinder 21 pushes the bottom end of the grinding head 41 to approach the annular top surface of the bearing end cover 100, and then, the lifting servo motor 17 is operated to lift the horizontal support plate 14. At the same time, the grinding motor 40 is operated to rotate the grinding head 41 until the annular top surface of the bearing end cover 100 is polished by the bottom end of the grinding head 41, indicating that the two are in contact. At this time, the lifting servo motor 17 is controlled by the control host to stop running, and then the drive motor 33 is controlled to run, so that the mobile trolley 30 moves along the annular guide rail 23, so that the grinding head 41 is circularly moved. The circular guide rail 23 is moved in a circular shape, wherein the central axis of the circular concave hole coincides with the central axis of the circular concave hole, that is, coincides with the central axis of the bearing end cover 100. At this time, the corresponding position of the annular top surface of the bearing end cover 100 is polished. After polishing one circle, the driving motor 33 stops running and then reverses. At the same time, the moving motor 37 is operated to make the moving block 361 move horizontally, and the position of the polishing head 41 is changed, so that it can polish the corresponding part of the annular top surface of the bearing end cover 100 at this time. In this way, the annular top surface of the bearing end cover 100 can be polished completely;

[0040] Each time the moving trolley 30 moves one circle along the annular guide rail 23 , it needs to move one circle in the reverse direction to prevent the electrical connection wires of the moving motor 37 and the driving motor 33 from being entangled and to ensure normal operation.

[0041] All the oil cylinders in this embodiment are connected to the hydraulic system through connecting oil pipes. The hydraulic system includes an oil pump, an oil tank and a control valve. All components are connected by connecting oil pipes. It is a conventional structure and will not be described in detail here. The electrical equipment in the hydraulic system and other electrical equipment in this embodiment are electrically connected to the control host through electrical connecting lines and are controlled and operated by the control host. They are all conventional structures and will not be described in detail here.

Claims

1. A bearing end cover end surface grinding mechanism, comprising a frame (10), characterized in that: A central through hole (11) is formed in the middle of the top plate of the frame (10), a spline sleeve (12) is inserted into the central through hole (11), the outer wall of the spline sleeve (12) is welded and fixed to the inner wall of the central through hole (11), a vertically extending central spline through hole is formed in the middle of the spline sleeve (12), a main spline shaft (13) is inserted into the spline sleeve (12), and a spline protrusion on the outer wall of the main spline shaft (13) is inserted into a spline groove on the inner wall of the central spline through hole and matches with the spline groove; The top end of the main spline shaft (13) extends out of the top end of the spline sleeve (12) and is fixed with a horizontal support plate (14), and a bearing end cover (100) to be processed is fixed on the top surface of the horizontal support plate (14); An intermediate horizontal plate is fixed at the lower part of the frame (10), and a vertical rotating shaft (15) is movably connected to the middle part of the intermediate horizontal plate through a bearing, and the upper part of the vertical rotating shaft (15) is a stud, which is screwed into a screw hole in the middle part of the bottom surface of the main spline shaft (13), and the bottom of the vertical rotating shaft (15) protrudes from the bottom surface of the intermediate horizontal plate and is fixed with a lower transmission gear (16), and a lower horizontal plate is provided below the intermediate horizontal plate, and a lifting servo motor (17) is fixed on the bottom surface of the lower horizontal plate, and the top end of the output shaft of the lifting servo motor (17) protrudes from the lower horizontal plate and is fixed with a driving gear (171), and the driving gear (171) is meshed with the lower transmission gear (16); An upper support frame (20) is fixed to the top surface of the top plate of the frame (10), a lifting cylinder (21) is fixed to the middle of the top surface of the top plate of the upper support frame (20), the bottom end of the push rod of the lifting cylinder (21) extends out of the bottom surface of the top plate of the upper support frame (20) and is fixed to a lifting plate (22), an annular guide rail (23) is fixed to the bottom surface of the lifting plate (22), a moving trolley (30) is mounted on the annular guide rail (23), a grinding motor (40) is mounted at the bottom of the moving trolley (30), a grinding head (41) is fixed to the bottom output shaft of the grinding motor (40), and the bottom end of the grinding head (41) faces the top surface of the bearing end cover (100).

2. The end surface grinding mechanism of a bearing end cover according to claim 1, characterized in that: An annular limiting plate (131) is fixed to the bottom end surface of the main spline shaft (13), and the diameter of the outer wall of the annular limiting plate (131) is greater than the outer diameter of the spline sleeve (12); A plurality of vertical guide columns (141) are fixed to the bottom surface of the edge of the horizontal support plate (14), and the vertical guide columns (141) are inserted into guide through holes formed on the top plate of the frame (10).

3. The end surface grinding mechanism of a bearing end cover according to claim 1, characterized in that: A circular concave hole is formed in the middle of the top surface of the horizontal support plate (14), a limiting plate is inserted into the circular concave hole, an outer wall of the limiting plate is in close contact with an inner wall of the circular concave hole, the limiting plate is fixedly connected to the bottom surface of the circular concave hole by bolts, an annular raised ring (1) is formed on the edge of the top surface of the limiting plate, the bottom surface of the bearing end cover (100) is pressed against the top surface of the limiting plate, and the outer wall of the bearing end cover (100) is in close contact with the inner wall of the annular raised ring (1).

4. The end surface grinding mechanism of a bearing end cover according to claim 1, characterized in that: The front, rear, left and right parts of the top surface of the horizontal support plate (14) are all fixed with side clamping cylinders (142), the ends of the push rods of the side clamping cylinders (142) are all fixed with clamping blocks (143), the bottom surface of the clamping blocks (143) is fixed with sliding blocks (144), and a plurality of guide rails (145) are fixed on the top surface of the horizontal support plate (14) below the clamping blocks (143), and the upper parts of the guide rails (145) are inserted into the slide grooves formed on the bottom surfaces of the corresponding sliding blocks (144).

5. The end surface grinding mechanism of a bearing end cover according to claim 4, characterized in that: An anti-sliding block (146) is fixed on the inner end surface of the pressing block (143); the inner wall surface of the anti-sliding block (146) is an arc-shaped wall surface, which is pressed against the outer wall of the bearing end cover (100).

6. The end surface grinding mechanism of a bearing end cover according to claim 1, characterized in that: A plurality of upper vertical guide rods (221) are fixed to the top surface of the lifting plate (22), and the upper vertical guide rods (221) are inserted into corresponding guide through holes on the top plate of the upper support frame (20).

7. The end surface grinding mechanism of a bearing end cover according to claim 1, characterized in that: The outer side wall and the inner side wall of the annular guide rail (23) are formed with a raised ring with a V-shaped cross section arranged transversely; The mobile trolley (30) comprises a trolley horizontal connecting plate (31), and four guide wheels (32) are movably connected on the top surface of the trolley horizontal connecting plate (31) through a hinge shaft. An annular groove is transversely provided in the middle of the guide wheel (32), and the cross section of the annular groove is also V-shaped, which corresponds to the raised ring. The outer raised ring is inserted into the annular grooves of the two outer guide wheels (32), and the inner raised ring is inserted into the annular grooves of the two inner guide wheels (32). The annular groove corresponds to and matches the raised ring. A driving motor (33) is fixed on the top surface of the trolley horizontal connecting plate (31), a rotating gear (34) is fixed on the upper output shaft of the driving motor (33), an annular gear ring (231) is fixed on the upper part of the inner wall of the annular guide rail (23), and the rotating gear (34) is meshed with the inner tooth portion of the annular gear ring (231).

8. The end surface grinding mechanism of a bearing end cover according to claim 7, characterized in that: A transverse horizontal plate (35) is fixed to the bottom surface of the trolley horizontal connecting plate (31), and vertical plates are fixed to the left and right parts of the bottom surface of the transverse horizontal plate (35). The two ends of the transverse moving screw (36) are movably connected to the two vertical plates through bearings. A moving motor (37) is fixed to the outer wall of one of the vertical plates. The moving motor (37) drives the transverse moving screw (36) to rotate. The moving block (361) is screwed on the transverse moving screw (36), and an upper sliding block (362) is fixed to the top surface of the moving block (361). A transverse guide rail (351) is fixed to the bottom surface of the transverse horizontal plate (35), and the transverse guide rail (351) is inserted into an arc-shaped guide groove formed on the top surface of the upper sliding block (362).

9. The end surface grinding mechanism of a bearing end cover according to claim 2, characterized in that: An inner guide sleeve is fixed on the inner side wall of the guide through hole formed on the top plate of the frame (10), the vertical guide column (141) is inserted into the corresponding inner guide sleeve, and the outer side wall of the vertical guide column (141) is tightly attached to the inner side wall of the corresponding inner guide sleeve.

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