Ball groove grinding wheel structure

Abstract

The utility model discloses a ball groove grinding wheel structure which comprises a grinding wheel base body and a grinding wheel disc, a grinding wheel seat is integrally formed on the end portion of the grinding wheel base body, and the grinding wheel disc is sleeved outside the grinding wheel seat. A plurality of polishing parts are arranged in the circumferential direction of the grinding wheel disc and are distributed around the central axis of the grinding wheel disc at intervals in the circumferential direction; the polishing part is provided with a first polishing surface and two second polishing surfaces; the two second polishing faces are connected to the two sides of the first polishing face in an inclined mode. According to the ball groove grinding wheel structure, the grinding wheel base can be integrally formed on the grinding wheel base body, then the grinding wheel disc structure is arranged on the grinding wheel base, and the assembling process is simplified.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding tools, in particular to a ball groove grinding wheel structure. Background Art

[0002] Currently, the needle roller grooves in CVT transmissions are designed to ensure good contact and power transmission between the drive belt (usually a metal or steel belt) and the pulleys. These tiny grooves, designed into the tapered surface of the pulleys, increase belt stability and reduce sliding losses during variable diameter sliding, thereby improving transmission efficiency.

[0003] When processing pulleys, grinding wheels are generally used for processing. However, existing grinding wheels are usually split structures and need to be processed separately and then assembled, which makes processing difficult. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a ball groove grinding wheel structure, which can integrally form a grinding wheel seat on a grinding wheel base, and then set a grinding wheel disc structure on the grinding wheel seat, thereby simplifying the assembly process.

[0005] The purpose of this utility model is achieved by the following technical solutions:

[0006] A ball groove grinding wheel structure includes a grinding wheel base and a grinding wheel disc, wherein a grinding wheel seat is integrally formed at the end of the grinding wheel base, and the grinding wheel disc is mounted outside the grinding wheel seat; a plurality of grinding parts are provided on the circumference of the grinding wheel disc, and the plurality of grinding parts are spaced apart around the central axis of the grinding wheel disc; the grinding part has a first grinding surface and two second grinding surfaces; the two second grinding surfaces are obliquely connected to both sides of the first grinding surface.

[0007] Furthermore, an avoidance groove is provided between two adjacent polishing parts.

[0008] Furthermore, the inner wall of the avoidance groove is an arc concave surface.

[0009] Furthermore, two sides of the arc concave surface are connected to the second polishing surfaces of two adjacent polishing parts.

[0010] Furthermore, a limiting seat is integrally formed on the periphery of the grinding wheel base, the limiting seat is protruded from the outer peripheral wall of the grinding wheel base and is formed as a limiting step at the end of the grinding wheel seat; the grinding wheel disc abuts against the limiting step.

[0011] Furthermore, the grinding wheel seats are provided at both ends of the limiting seat.

[0012] Furthermore, a connecting channel is provided in the middle of the grinding wheel base; the connecting channel passes through one of the grinding wheel seats to the limiting seat and then passes through to the other grinding wheel seat.

[0013] Furthermore, the grinding part is made of CBN abrasive material.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The grinding wheel disc on the grinding wheel base can be used to grind with multiple grinding parts to be processed. Since the multiple grinding parts have conical grinding surfaces, grinding is performed with the first grinding surface in contact, and the inclined second grinding surfaces on both sides guide the grinding. It can also guide the grinding chips to be discharged from the side to prevent accumulation on the grinding part and affect the grinding accuracy.

[0016] In addition, the grinding wheel seat is directly integrated with the grinding wheel base, and the grinding wheel disc can be directly assembled to reduce secondary assembly. The grinding wheel disc is directly assembled based on the grinding wheel base, reducing looseness caused by secondary assembly, and thus the grinding process is more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a cross-sectional view of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the grinding wheel base of the utility model;

[0020] Figure 4 This is a schematic structural diagram of the frosting disc of the present utility model.

[0021] In the figure: 10, grinding wheel base; 11, grinding wheel seat; 12, limit seat; 121, limit step; 13, connection channel; 20, grinding wheel disc; 21, grinding part; 211, first grinding surface; 212, second grinding surface; 22, avoidance groove. DETAILED DESCRIPTION

[0022] Below, the present invention is further described with reference to the accompanying drawings and specific embodiments:

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0025] like Figures 1-4 The structure of a ball-grooved grinding wheel shown includes a grinding wheel base 10 and a grinding wheel disc 20. A grinding wheel seat 11 is integrally formed at the end of the grinding wheel base 10. The grinding wheel disc 20 is mounted on the outside of the grinding wheel seat 11 and is fixedly connected to the grinding wheel seat 11. Specifically, a plurality of grinding portions 21 are provided circumferentially around the grinding wheel disc 20, and the plurality of grinding portions 21 are spaced apart and circumferentially distributed around the central axis of the grinding wheel disc 20. In addition, the grinding portion 21 has a first grinding surface 211 and two second grinding surfaces 212, and the two second grinding surfaces 212 are obliquely connected to the two sides of the first grinding surface 211. Thus, the two inclined second grinding surfaces 212 and the middle first grinding surface 211 form a tapered grinding portion 21.

[0026] On the basis of the above structure, the ball groove grinding wheel structure of the present invention is used. When in use, the grinding wheel base 10 can be connected to the rotating shaft of the grinding machine, so that the rotation of the rotating shaft of the grinding machine can drive the grinding wheel base 10 to rotate, and the grinding wheel disc 20 on the grinding wheel base 10 can be used to grind with multiple grinding parts 21 to be processed. Since the multiple grinding parts 21 have conical grinding surfaces, the first grinding surface 211 is used for contact grinding, and the inclined second grinding surfaces 212 on both sides guide the grinding, and can also guide the grinding chips to be discharged from the side to prevent accumulation on the grinding part 21 and affect the grinding accuracy.

[0027] In addition, the grinding wheel seat 11 is directly integrated with the grinding wheel base 10, and the grinding wheel disc 20 can be directly assembled, reducing secondary assembly. The grinding wheel disc 20 is directly assembled with the grinding wheel base 10, reducing looseness caused by secondary assembly, so the grinding process is more stable.

[0028] Furthermore, an avoidance groove 22 is provided between the two adjacent grinding parts 21, so that the grinding chips guided by the second grinding surfaces 212 on both sides can enter the avoidance groove 22, preventing them from accumulating on the surface of the grinding wheel 20, thereby reducing the uneven grinding caused by the accumulation of surface grinding chips.

[0029] Furthermore, the inner wall of the avoidance groove 22 is an arc concave surface. Compared with a straight surface, the arc concave surface can reduce the corner structure caused by the straight surface setting and reduce the accumulation of wear chips at the corner position, so that the wear chips are easier to be discharged.

[0030] More specifically, both sides of the arc concave surface are connected to the second grinding surfaces 212 of two adjacent grinding parts 21 , that is, the inclined second grinding surfaces 212 directly guide the grinding chips into the arc surface, making it easier to remove the grinding chips.

[0031] Furthermore, a limiting seat 12 is integrally formed on the periphery of the grinding wheel base 10, and the limiting seat 12 is protruded from the outer peripheral wall of the grinding wheel base 10 and formed as a limiting step 121 at the end of the grinding wheel seat 11; the grinding wheel disc 20 abuts against the limiting step 121, so that after the grinding wheel disc 20 is assembled to the grinding wheel base 10, it can be limited and abutted in the axial direction by the limiting step 121, thereby bearing the force of the grinding wheel disc 20, and the overall grinding process is smoother.

[0032] Furthermore, grinding wheel seats 11 are provided at both ends of the limit seat 12, that is, the grinding wheel disc 20 can be clamped at both ends of the grinding wheel base 10 through the grinding wheel seat 11, and the limiting steps 121 on both sides are used to achieve limiting abutment and force bearing, so that grinding at both ends can be achieved and the grinding process can be smooth.

[0033] Furthermore, a through-passage 13 is provided in the middle of the grinding wheel base 10; the through-passage 13 extends from one grinding wheel seat 11 to the stop seat 12 and then to the other grinding wheel seat 11. The through-passage 13 allows the rotating shaft of the grinding machine to pass through, and the rotating shaft of the grinding machine can be installed in the hole via a bearing to support the high speed operation of the grinding wheel base 10 during operation, ensuring smooth operation.

[0034] Furthermore, the grinding portion 21 is made of CBN abrasive material (also known as cubic boron nitride material) in the prior art. Specifically, the CBN abrasive is electroplated onto the grinding portion 21 of the grinding wheel 20 using a buried sand method, so that the CBN abrasive is evenly coated.

[0035] Those skilled in the art can make various other corresponding changes and deformations based on the technical solutions and concepts described above, and all of these changes and deformations should fall within the scope of protection of the claims of the present utility model.

Claims

1. A ball groove grinding wheel structure, characterized in that: It includes a grinding wheel base and a grinding wheel disc, wherein a grinding wheel seat is integrally formed at the end of the grinding wheel base, and the grinding wheel disc is mounted outside the grinding wheel seat; a plurality of grinding parts are provided on the circumference of the grinding wheel disc, and the plurality of grinding parts are spaced apart around the central axis of the grinding wheel disc; the grinding part has a first grinding surface and two second grinding surfaces; the two second grinding surfaces are obliquely connected to both sides of the first grinding surface.

2. The ball groove grinding wheel structure according to claim 1, characterized in that: An avoidance groove is provided between two adjacent polishing parts.

3. The ball groove grinding wheel structure according to claim 2, characterized in that: The inner wall of the avoidance groove is an arc concave surface.

4. The ball groove grinding wheel structure according to claim 3, characterized in that: Both sides of the arc concave surface are connected to the second polishing surfaces of two adjacent polishing parts.

5. The ball groove grinding wheel structure according to any one of claims 1 to 4, characterized in that: The outer periphery of the grinding wheel base is integrally formed with a limiting seat, which is protruding from the outer peripheral wall of the grinding wheel base and forms a limiting step at the end of the grinding wheel seat; the grinding wheel disc abuts against the limiting step.

6. The ball groove grinding wheel structure according to claim 5, characterized in that: The grinding wheel seats are provided at both ends of the limiting seat.

7. The ball groove grinding wheel structure according to claim 6, characterized in that: A connecting channel is provided in the middle of the grinding wheel base; the connecting channel passes through one of the grinding wheel seats to the limiting seat and then passes through to the other grinding wheel seat.

8. The ball groove grinding wheel structure according to any one of claims 1 to 4, characterized in that: The grinding part is made of CBN abrasive material.

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