Self-adjusting annular backer for bearing roller end face machining

Abstract

The utility model relates to a self-adjusting annular backer for bearing roller end face machining. The self-adjusting annular backer comprises a rectangular positioning base, a conical open hole is formed in the front end face of the base, a spherical positioning concave hole is formed in the bottom of a groove hole, and a center hole extending backwards is formed in the middle of the bottom face of the positioning concave hole. A conical annular backer is inserted into an opening of the base, the front end of the annular backer extends out of the front end face of the base, a spherical shell-shaped adjusting head is formed at the rear end of the annular backer, and an adjusting hole is formed in the middle of the adjusting head. A conical positioning block is inserted into the annular backer, a spherical positioning head is formed at the rear end of the positioning block, an insertion shaft is formed on the outer wall of the rear end of the positioning head, the insertion shaft penetrates through the adjusting hole of the adjusting head and is inserted into the center hole of the base, and the adjusting head on the annular backer is clamped between the inner wall of the positioning concave hole and the outer wall of the positioning head. The annular backer can rotate universally by itself when supporting the end face of the roller, and the supporting face of the backer is attached to the end face of the roller.

Description

Technical field:

[0001] The utility model relates to the technical field of roller end surface machining datum, in particular to a self-adjusting annular backer for bearing roller end surface machining. Background technology:

[0002] Rollers are an important part of tapered roller bearings. Roller processing requires machining of their outer walls and grinding of both end faces of the rollers to ensure the parallelism and surface finish of both end faces of the rollers. At present, when machining the end faces of rollers, the unmachined end faces of the rollers are placed against the reference backing and the other end faces of the rollers are ground. However, there is a deviation in the verticality between the unmachined end faces of the rollers and the central axis of the rollers, while the reference backing is fixed. Therefore, the end faces of the rollers with end face grinding are still not perpendicular to the central axis, which will affect the quality of the products. Furthermore, some people have proposed to use the outer wall of the roller as the main reference for grinding, that is, the cylindrical surface where the outer wall of the roller is located and the plane of the wear and movement of the grinding wheel are perpendicular, thereby ensuring that the machined end face of the roller is perpendicular to the central axis of the roller. However, while positioning the outer wall of the roller, in order to prevent the axial movement of the positioning roller, it is necessary to provide limited support for the end face on the unprocessed side. If the existing fixed backrest is used, there is a situation where the support surface of the backrest and the end face of the roller are not flush, and effective support cannot be performed. Therefore, it is necessary to design a backrest that can fit flush with the end face of the roller. Utility model content:

[0003] The purpose of the utility model is to address the deficiencies of the prior art and to provide a self-adjusting annular backer for processing the end face of a bearing roller. The annular backer can perform universal rotation on its own when supporting the end face of the roller, so that the supporting surface of the backer and the end face of the roller are in contact, and can rotate with the roller.

[0004] Can be universally rotated to achieve a circular backing

[0005] A self-adjusting annular backer for processing the end face of a bearing roller comprises a rectangular base, a front end face of the base is formed with a conical opening, a bottom of the opening is formed with a spherical positioning concave hole, and a center hole extending backward is formed in the middle of the bottom surface of the positioning concave hole;

[0006] A conical annular backer is inserted into the opening of the base, the front end of the annular backer extends out of the front end surface of the base, the rear end is formed with a spherical shell-shaped adjusting head, and the middle part of the adjusting head is formed with an adjusting hole; a conical positioning block is inserted into the annular backer, the rear end of the positioning block is formed with a spherical positioning head, the outer wall of the rear end of the positioning head is formed with an insertion shaft, the insertion shaft passes through the adjusting hole of the adjusting head and is inserted into the central hole of the base, and the adjusting head on the annular backer is clamped between the inner wall of the positioning concave hole and the outer wall of the positioning head;

[0007] An annular groove is formed on the outer wall of the insertion shaft; a slot connected to the central hole is formed on the upper end surface of the base, a card plate is inserted in the slot, and the lower end of the card plate is inserted in the groove of the insertion shaft.

[0008] Preferably, the spherical center of the bottom surface of the positioning recessed hole on the base, the spherical center of the positioning head on the positioning block and the spherical center of the adjusting head on the annular backer coincide with each other.

[0009] Preferably, the diameter of the outer circle of the front end surface of the annular backer is smaller than the diameter of the entrance of the opening on the base, and the diameter of the inner circle of the front end surface of the annular backer is larger than the diameter of the front end surface of the positioning head.

[0010] Preferably, the front end of the positioning head extends out of the front end face of the base, the front end faces of the positioning head, the base and the annular backing are parallel, and the distance from the front end face of the positioning head to the front end face of the base is smaller than the distance from the front end face of the annular backing to the front end face of the base.

[0011] Preferably, a rectangular nylon anti-collision pad is fixedly connected to the front end surface of the base, a circular hole opposite to the opening is formed in the middle of the nylon anti-collision pad, an annular backer is inserted into the circular hole of the nylon anti-collision pad, and the front end surface of the annular backer is flush with the front end surface of the nylon anti-collision pad.

[0012] Preferably, the aperture of the adjusting hole on the annular backrest is larger than the diameter of the insertion shaft on the positioning block, and a plurality of steel balls are respectively embedded on the inner and outer walls of the adjusting head around the adjusting hole. The steel balls respectively abut against the inner wall of the positioning recess and the outer wall of the positioning head and are distributed in a ring around the central axis of the insertion shaft.

[0013] Preferably, a threaded hole connected to the slot is formed on the upper end surface of the base, a top screw is screwed into the threaded hole, and the lower end of the top screw abuts against the upper end surface of the clamping plate.

[0014] The beneficial effects of the utility model are:

[0015] The annular backer can perform universal rotation by itself when supporting the end face of the roller, so that the supporting surface of the backer and the end face of the roller are fitted together, and can rotate with the roller, so as to facilitate the processing of the end face of the roller. Description of the drawings:

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the utility model in a front view;

[0018] Figure 3 It is a half-section schematic diagram of the utility model in the side view direction;.

[0019] In the figure: 1. base; 11. opening; 12. positioning recessed hole; 13. center hole; 14. slot; 15. threaded hole; 2. annular backing; 21. adjusting head; 3. positioning block; 31. positioning head; 32. plug-in shaft; 33. slot; 4. clamping plate; 5. top screw; 6. steel ball; 7. nylon anti-collision pad; 71. round hole. Specific implementation method:

[0020] Example: See Figures 1 to 3 As shown, a self-adjusting annular backer for processing the end face of a bearing roller comprises a rectangular base 1, a conical opening 11 is formed on the front end face of the base 1, a spherical positioning recess 12 is formed on the bottom of the opening 11, and a center hole 13 extending backward is formed in the middle of the bottom face of the positioning recess 12;

[0021] A conical annular backer 2 is inserted into the opening 11 of the base 1, the front end of the annular backer 2 extends out of the front end surface of the base 1, and a spherical shell-shaped adjusting head 21 is formed at the rear end, and an adjusting hole is formed in the middle of the adjusting head 21; a conical positioning block 3 is inserted into the annular backer 2, and a spherical positioning head 31 is formed at the rear end of the positioning block 3, and an insert shaft 32 is formed on the outer wall of the rear end of the positioning head 31, and the insert shaft 32 passes through the adjusting hole of the adjusting head 21 and is inserted into the central hole 13 of the base 1, and the adjusting head 21 on the annular backer 2 is clamped between the inner wall of the positioning recessed hole 12 and the outer wall of the positioning head 31;

[0022] An annular groove 33 is formed on the outer wall of the insertion shaft 32; a slot 14 connected to the center hole 13 is formed on the upper end surface of the base 1, and a card plate 4 is inserted into the slot 14, and the lower end of the card plate 4 is inserted into the groove 33 of the insertion shaft 32.

[0023] The spherical center of the bottom surface of the positioning recessed hole 12 on the base 1, the spherical center of the positioning head 31 on the positioning block 3 and the spherical center of the adjusting head 21 on the annular backer 2 coincide with each other, so that the annular backer 2 will not get stuck when rotating.

[0024] The diameter of the outer circle of the front end surface of the annular backer 2 is smaller than the diameter of the entrance of the opening 11 on the base 1 , and the diameter of the inner circle of the front end surface of the annular backer 2 is larger than the diameter of the front end surface of the positioning head 31 .

[0025] The front end of the positioning head 31 extends out of the front end face of the base 1, and the front end faces of the positioning head 31, the base 1 and the annular backer 2 are parallel. The distance from the front end face of the positioning head 31 to the front end face of the base 1 is smaller than the distance from the front end face of the annular backer 2 to the front end face of the base 1. The front end face of the annular backer 2 is the reference surface of the end face of the positioning roller. When the annular backer 2 is rotated and adjusted, the positioning head 31 is located in the annular backer 2 and will not interfere with the roller.

[0026] A rectangular nylon anti-collision pad 7 is fixedly connected to the front end surface of the base 1, and a circular hole 71 opposite to the opening 11 is formed in the middle of the nylon anti-collision pad 7. The annular backer 2 is inserted into the circular hole 71 of the nylon anti-collision pad 7. The front end surface of the annular backer 2 is flush with the front end surface of the nylon anti-collision pad 7. The roller collides with the nylon anti-collision pad 7 without being scratched.

[0027] The aperture of the adjustment hole on the annular backer 2 is larger than the diameter of the insertion shaft 32 on the positioning block 3. A plurality of steel balls 6 are respectively embedded on the inner and outer walls of the adjustment head 21 around the adjustment hole. The steel balls 6 respectively abut against the inner wall of the positioning recess 12 and the outer wall of the positioning head 31 and are distributed in a ring shape around the central axis of the insertion shaft 32. The steel balls 6 can realize the rotation of the annular backer 2 as rolling friction to reduce wear.

[0028] A threaded hole 15 connected to the slot 14 is formed on the upper end surface of the base 1 , a top screw 5 is screwed into the threaded hole 15 , and the lower end of the top screw 5 abuts against the upper end surface of the clamping plate 4 , and the top screw 5 is used to limit the clamping plate 4 from leaving the clamping slot 33 .

[0029] Working principle: The utility model is a self-adjusting annular backer for processing the end face of a bearing roller. The self-adjusting annular backer adopts a positioning base 1 as a bearing support of an annular backer 2. The annular backer 2 is connected to the positioning base 1 through a spherical structure, so that the annular backer 2 can perform universal rotation on the positioning base 1; on the end face of the processed roller, the end face of the roller moves and abuts against the annular backer 2, and the annular backer 2 can self-adjust and fit on the end face of the roller based on the force of the roller, thereby providing effective support for the end face processing of the roller.

[0030] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A self-adjusting annular backer for machining the end face of a bearing roller, comprising a rectangular base (1), a front end face of the base (1) being formed with a conical opening (11), characterized in that: A spherical positioning recessed hole (12) is formed at the bottom of the opening (11), and a center hole (13) extending backward is formed in the middle of the bottom surface of the positioning recessed hole (12); A conical annular backer (2) is inserted into the opening (11) of the base (1), the front end of the annular backer (2) extends out of the front end surface of the base (1), and the rear end is formed with a spherical shell-shaped adjusting head (21), and the middle part of the adjusting head (21) is formed with an adjusting hole; a conical positioning block (3) is inserted into the annular backer (2), the rear end of the positioning block (3) is formed with a spherical positioning head (31), and the outer wall of the rear end of the positioning head (31) is formed with an insertion shaft (32), the insertion shaft (32) passes through the adjusting hole of the adjusting head (21) and is inserted into the central hole (13) of the base (1), and the adjusting head (21) on the annular backer (2) is clamped between the inner wall of the positioning recessed hole (12) and the outer wall of the positioning head (31); An annular groove (33) is formed on the outer wall of the insertion shaft (32); a slot (14) connected to the center hole (13) is formed on the upper end surface of the base (1); a card plate (4) is inserted into the slot (14); and the lower end of the card plate (4) is inserted into the groove (33) of the insertion shaft (32).

2. The self-adjusting annular backer for machining the end surface of a bearing roller according to claim 1, characterized in that: The spherical center of the bottom surface of the positioning recessed hole (12) on the base (1), the spherical center of the positioning head (31) on the positioning block (3) and the spherical center of the adjusting head (21) on the annular backer (2) coincide with each other.

3. The self-adjusting annular backer for machining the end surface of a bearing roller according to claim 2, characterized in that: The diameter of the outer circle of the front end surface of the annular backer (2) is smaller than the diameter of the entrance of the opening (11) on the base (1), and the diameter of the inner circle of the front end surface of the annular backer (2) is larger than the diameter of the front end surface of the positioning head (31).

4. The self-adjusting annular backer for machining the end surface of a bearing roller according to claim 3, characterized in that: The front end of the positioning head (31) extends out of the front end face of the base (1); the front end faces of the positioning head (31), the front end faces of the base (1) and the front end face of the annular backer (2) are parallel; the distance from the front end face of the positioning head (31) to the front end face of the base (1) is smaller than the distance from the front end face of the annular backer (2) to the front end face of the base (1).

5. The self-adjusting annular backer for machining the end surface of a bearing roller according to claim 4, characterized in that: A rectangular nylon anti-collision pad (7) is fixedly connected to the front end surface of the base (1); a circular hole (71) opposite to the opening (11) is formed in the middle of the nylon anti-collision pad (7); the annular backer (2) is inserted into the circular hole (71) of the nylon anti-collision pad (7); and the front end surface of the annular backer (2) is flush with the front end surface of the nylon anti-collision pad (7).

6. The self-adjusting annular backer for machining the end surface of a bearing roller according to claim 2, characterized in that: The diameter of the adjustment hole on the annular backer (2) is larger than the diameter of the insertion shaft (32) on the positioning block (3). A plurality of steel balls (6) are respectively embedded on the inner and outer walls of the adjustment head (21) around the adjustment hole. The steel balls (6) respectively abut against the inner wall of the positioning recessed hole (12) and the outer wall of the positioning head (31) and are distributed in an annular shape around the central axis of the insertion shaft (32).

7. The self-adjusting annular backer for machining the end surface of a bearing roller according to claim 2, characterized in that: A threaded hole (15) connected to the slot (14) is formed on the upper end surface of the base (1), a top screw (5) is screwed into the threaded hole (15), and the lower end of the top screw (5) abuts against the upper end surface of the clamping plate (4).

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