Grinding wheel for gear

Abstract

The utility model discloses a grinding wheel for a gear, which comprises a grinding wheel base body, two grinding bosses are arranged on the grinding wheel base body in the axial direction, the two grinding bosses are respectively arranged at the two ends of the grinding wheel base body in the axial direction in a protruding mode, grinding portions are arranged on the grinding bosses, and the grinding portions are arranged on the grinding wheel base body. And the grinding part is used for grinding an external workpiece. According to the grinding wheel for the gear, the grinding bosses are arranged at the two axial ends of the grinding wheel base body in the protruding mode respectively, the grinding portions used for grinding the gear are arranged on the grinding bosses, the contact area between the grinding wheel and a gear workpiece can be reduced during grinding, and therefore the stress generated when the gear workpiece is ground by the grinding wheel is increased, and the gear workpiece can be prevented from being damaged. And the grinding efficiency is improved.

Description

Technical Field

[0001] The utility model relates to a tool and fixture, in particular to a grinding wheel for gears. Background Art

[0002] With the rapid development of the manufacturing industry, smart manufacturing industries such as mobile phones, automobiles, and automated equipment are increasingly demanding more sophisticated processing. This requires grinding the internal gears of equipment workpieces to meet specified production and manufacturing standards. Currently, gear grinding is primarily performed using grinding wheels. Conventional grinding wheels cannot meet the grinding requirements of gear workpieces with higher hardness, resulting in low grinding efficiency. Furthermore, grinding wheels are prone to causing damage to the gears during the grinding process, affecting the grinding quality. Utility Model Content

[0003] In order to overcome the shortcomings of the existing technology, the utility model provides a grinding wheel for gears, which has grinding bosses protruding from both ends of the axial direction of the grinding wheel base, and a grinding portion for grinding the gear is provided on the grinding bosses, which can reduce the contact area between the grinding wheel and the gear workpiece during grinding, thereby increasing the stress generated on the gear workpiece when being ground by the grinding wheel.

[0004] The purpose of this utility model is achieved by the following technical solutions:

[0005] A grinding wheel for gears, characterized in that it includes a grinding wheel base, a grinding boss is provided in the axial direction of the grinding wheel base, two grinding bosses are provided, and the two grinding bosses are respectively protruded at the two ends of the axial direction of the grinding wheel base, and a grinding part is provided on the grinding boss, which is used to grind external workpieces.

[0006] Furthermore, the grinding portion is an arc-shaped structure provided on the grinding boss.

[0007] Furthermore, the grinding portion includes a first grinding surface and a second grinding surface, the first grinding surface is arranged on the axial end surface of the grinding boss, the second grinding surface is arranged on the circumferential side surface of the grinding boss, and the first grinding surface is connected to the second grinding surface through an arc surface.

[0008] Furthermore, the grinding wheel base is provided with a grinding groove, and the grinding groove is located between the two grinding bosses; the grinding groove is provided with two inclined guide surfaces, and the two inclined guide surfaces are respectively connected to the two second grinding surfaces.

[0009] Furthermore, a notch is provided at an end of the second grinding surface away from the first grinding surface; and the inclined guide surface is connected to the notch.

[0010] Furthermore, the grinding wheel for gears further comprises an abrasive layer, and the abrasive layer is provided on the grinding portion by electroplating.

[0011] Furthermore, a connecting hole is provided on the grinding wheel base, and the connecting hole is used to connect to an external shaft driving device to rotate the grinding wheel base.

[0012] Furthermore, both axial end faces of the grinding wheel base are provided with annular bosses, which are arranged on the inner ring of the first grinding surface. The annular bosses are used to be clamped with an external shielding clamping plate to clamp the grinding wheel base.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. Grinding bosses are provided at both ends of the grinding wheel base in the axial direction, and grinding parts for grinding the gear workpiece are provided on the grinding bosses. This can reduce the contact area between the grinding wheel and the gear workpiece during grinding, thereby increasing the stress generated by the grinding wheel when the gear workpiece is ground, and improving the grinding efficiency of the grinding wheel on the gear workpiece.

[0015] 2. By providing an arc-shaped grinding portion on the grinding boss, the grinding wheel can apply a gentler grinding force to the gear workpiece during the grinding process, thereby avoiding grinding damage to the gear workpiece.

[0016] 3. The chip groove is set between the two grinding bosses, so that the chips generated by the grinding wheel when grinding the gear workpiece can be discharged in time through the chip groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

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

[0019] Figure 3 It is a schematic diagram of the cross-sectional structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the working state of the utility model;

[0021] Figure 5 It is a schematic diagram of the cross-sectional structure of the working state of the utility model.

[0022] In the figure: 10, grinding wheel base; 20, grinding boss; 21, first grinding surface; 22, second grinding surface; 30, grinding groove; 40, notch; 50, connecting hole; 60, annular boss. DETAILED DESCRIPTION

[0023] Below, the present invention is further described with reference to the accompanying drawings and specific embodiments:

[0024] 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.

[0025] 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.

[0026] like Figure 1-5 The grinding wheel for gears shown in the figure includes a grinding wheel base 10. Specifically, two grinding bosses 20 are provided in the axial direction of the grinding wheel base 10, and the two grinding bosses 20 are respectively protruded at the two ends of the axial direction of the grinding wheel base 10, and a grinding part is provided on the grinding boss 20, and the grinding part is used to grind the external workpiece.

[0027] Based on the above structure, when using the grinding wheel for gears of the present invention, the grinding wheel body can be sleeved on the external rotating shaft through the connecting hole 50 provided on the grinding wheel base 10. The external rotating shaft is then rotated after being connected to an external driving device, thereby driving the grinding wheel base 10 to rotate along with the external rotating shaft, so that the gear workpiece to be ground can be ground. Two grinding bosses 20 can be provided in the axial direction of the grinding wheel base 10. Specifically, the two grinding bosses 20 can be respectively provided at the two axial ends of the grinding wheel base 10, and a grinding portion for grinding the external gear workpiece can be provided on the grinding bosses 20. In this way, when the gear workpiece is ground, the contact area between the grinding wheel and the gear workpiece can be reduced, thereby increasing the stress generated by the gear workpiece when the grinding wheel is grinding, and improving the grinding efficiency of the grinding wheel on the gear workpiece.

[0028] In addition, since the grinding wheel base 10 can be clamped and limited at both axial ends by external shielding clamps during the rotation of the grinding wheel base 10, the interference of the axial external force on the grinding wheel grinding process can be shielded during the grinding process, thereby improving the stability of the grinding wheel base 10 during grinding.

[0029] Of course, the grinding wheel base 10 in this embodiment can be realized by using a grinding wheel, a grinding wheel or other structures in the prior art.

[0030] Furthermore, the grinding portion can be provided on the grinding boss 20 in an arc-shaped structure. The arc-shaped structure can share the radial force and axial force generated by the grinding wheel base 10 on the gear workpiece to be ground when the gear workpiece to be ground is ground on the grinding wheel base 10, thereby making the grinding wheel base 10 exert a gentler force on the gear workpiece to be ground, and is not easy to damage the gear workpiece to be ground during the grinding process; the above-mentioned arc-shaped structure can be an arc-shaped or wavy arc-shaped structure.

[0031] Furthermore, the grinding portion includes a first grinding surface 21 and a second grinding surface 22. The first grinding surface 21 can be arranged on the axial end surface of the grinding boss 20, and the second grinding surface 22 can be arranged on the circumferential side surface of the grinding boss 20. Specifically, the grinding operation of the gear workpiece to be ground usually requires grinding the side walls and bottom walls of the tooth grooves between adjacent teeth of the gear to be ground. The grinding wheel can be inserted into the tooth grooves of the gear workpiece for grinding. The first grinding surface 21 abuts against the side wall of the tooth groove and can grind the side wall of the tooth groove, while the second grinding surface 22 abuts against the bottom wall of the tooth groove and can grind the bottom wall of the tooth groove. In this way, the grinding operation of the gear workpiece to be ground can be completed through the grinding cooperation of the first grinding surface 21 and the second grinding surface 22; and the first grinding surface 21 is connected to the second grinding surface 22 through the arc surface, so that the grinding wheel can exert a gentler force on the gear workpiece to be ground, thereby avoiding grinding damage to the gear workpiece.

[0032] Furthermore, the grinding wheel base 10 is provided with a grinding groove 30. Specifically, the grinding groove 30 is located between the two above-mentioned grinding bosses 20. The grinding groove 30 can be provided with two inclined guide surfaces, and the two inclined guide surfaces are respectively connected to the two above-mentioned second grinding surfaces 22; when the gear workpiece to be ground is ground, the grinding wheel base 10 is connected through an external shaft drive device and rotated, thereby driving the grinding wheel base 10 to rotate with the external shaft and thereby generating a grinding effect on the gear workpiece. The second grinding surface 22 can abut against the bottom wall of the tooth groove of the gear workpiece and grind the bottom wall of the tooth groove. During the grinding process, chips will be generated on the bottom wall of the tooth groove. The chips can be guided into the grinding groove through the inclined guide surface, and the grinding groove can rotate with the rotation of the grinding wheel base 10. In this way, the chips can be discharged after the rotation of the grinding wheel base 10 through the grinding groove 30, thereby avoiding the accumulation of chips and affecting the grinding effect.

[0033] In addition, since the two inclined guide surfaces are respectively connected to the two above-mentioned second grinding surfaces 22, the two grinding bosses 20 form an angle groove in the circumferential direction of the grinding wheel base 10, so that there is a certain amount of relaxation space between the two grinding bosses 20. When the grinding wheel performs a grinding operation, the grinding wheel extends into the tooth groove of the gear workpiece, and the tooth groove is ground through the two grinding bosses 20. Since there is a certain amount of relaxation space between the two grinding bosses 20, the grinding bosses 20 have a certain degree of relaxation during grinding, which avoids the grinding wheel from getting stuck or stuck during grinding, thereby improving the grinding efficiency.

[0034] Furthermore, a notch portion 40 may be provided at the end of the second grinding surface 22 away from the first grinding surface 21, and the inclined guide surface may be connected to the notch portion 40; in this way, the chips generated when the second grinding surface 22 grinds the bottom wall of the tooth groove can be discharged to the notch portion 40 in a timely manner, and then guided to the grinding groove by the inclined guide surface for discharge, thereby further improving the discharge efficiency of the chips generated by grinding.

[0035] Furthermore, the above-mentioned grinding wheel for gears also includes an abrasive layer, which can be provided on the grinding part by electroplating; the abrasive layer can be provided on the grinding part by electroplating using the CBN material layer in the prior art, thereby increasing the overall grinding hardness of the grinding wheel; or a diamond material layer can be provided on the CBN material layer by electroplating to further enhance the overall grinding hardness of the grinding wheel, thereby improving the grinding efficiency of the grinding wheel.

[0036] Furthermore, both axial end faces of the grinding wheel base 10 are provided with annular bosses 60, which can be arranged on the inner ring of the first grinding surface 21, and the annular boss 60 is used to clamp the external shielding clamp to clamp the grinding wheel base 10, which can reduce the contact area between the grinding wheel base 10 and the external shielding clamp, thereby increasing the friction between the external shielding clamp and the grinding wheel base 10, so that the grinding wheel base 10 is not easy to loosen and slip, thereby improving the overall stability of the grinding wheel base 10 during the grinding operation.

[0037] 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 grinding wheel for gears, characterized in that: It includes a grinding wheel base, which is axially provided with a grinding boss. There are two grinding bosses, which are respectively protruded at the two ends of the grinding wheel base in the axial direction. The grinding boss is provided with a grinding part, which is used to grind external workpieces.

2. The grinding wheel for gears according to claim 1, characterized in that: The grinding portion is an arc-shaped structure and is arranged on the grinding boss.

3. The grinding wheel for gears according to claim 2, characterized in that: The grinding portion includes a first grinding surface and a second grinding surface. The first grinding surface is annularly arranged on the axial end surface of the grinding boss, and the second grinding surface is annularly arranged on the circumferential side surface of the grinding boss. The first grinding surface is connected to the second grinding surface through an arc surface.

4. The grinding wheel for gears according to claim 3, characterized in that: The grinding wheel base is provided with a grinding chip groove, and the grinding chip groove is located between the two grinding bosses; The grinding chip groove is provided with two inclined guide surfaces, and the two inclined guide surfaces are respectively connected to the two second grinding surfaces.

5. The grinding wheel for gears according to claim 4, characterized in that: A notch is provided at the end of the second grinding surface away from the first grinding surface; and the inclined guide surface is connected to the notch.

6. The grinding wheel for gears according to claim 3, characterized in that: The grinding wheel for gears further comprises an abrasive layer, and the abrasive layer is provided on the grinding portion by electroplating.

7. The grinding wheel for gears according to claim 6, characterized in that: The grinding wheel base is provided with a connecting hole, and the connecting hole is used to be connected to an external shaft driving device to rotate the grinding wheel base.

8. The grinding wheel for gears according to claim 7, characterized in that: Both axial end faces of the grinding wheel base are convexly provided with annular bosses, which are arranged on the inner circle of the first grinding surface. The annular bosses are used to be clamped with an external shielding clamping plate to clamp the grinding wheel base.

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