Accurate grinding tool for gear shaft

Abstract

The utility model relates to the technical field of machining, in particular to a gear shaft accurate grinding tool which comprises an output shaft and a connecting piece, a mounting hole is coaxially formed in one end of the output shaft, one end of the connecting piece is coaxially embedded in the mounting hole, a spline is arranged on the periphery of the other end of the connecting piece, and the spline is used for being embedded in a positioning groove of a workpiece to be machined. The spline is matched with the positioning groove of the to-be-machined workpiece, so that the output shaft can drive the to-be-machined workpiece to rotate so as to machine the outer circle of the to-be-machined workpiece, the outer wall of the to-be-machined workpiece is not shielded, the outer wall of the to-be-machined workpiece can be conveniently machined at a time, and the machining efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical processing, and in particular to a gear shaft fine grinding tool. Background Art

[0002] In the field of mechanical processing, machining the external diameter of workpieces has always been a critical step. Traditional machining methods typically require inserting the workpiece into a fixture, then using an additional fixture to clamp the outer wall of the workpiece, rotating the workpiece for grinding. However, this method presents a significant problem: the portion of the workpiece held by the fixture cannot be machined, requiring the workpiece to be removed and re-machined. This repeated clamping and re-orientation not only increases operational complexity but also reduces machining efficiency. Utility Model Content

[0003] In order to simplify the operating steps of workpiece installation and improve processing efficiency, the present application provides a gear shaft fine grinding tool.

[0004] The present application provides a gear shaft fine grinding tool that adopts the following technical solution:

[0005] A gear shaft fine grinding tool comprises an output shaft and a connecting piece; the output shaft comprises a mounting section, a connecting section and a transmission section; the mounting section is coaxially connected to one end of the connecting section; the transmission section is coaxially connected to the other end of the connecting section; the connecting piece is coaxially fixedly connected to the end of the mounting section away from the connecting section; a mounting hole is coaxially provided at one end of the mounting section along the axis of the mounting section; one end of the connecting piece is coaxially embedded in the mounting hole; a spline is provided on the outer periphery of the other end of the connecting piece; the spline is used to be embedded in the positioning groove of the workpiece to be processed.

[0006] By adopting the above technical solution, the spline cooperates with the positioning groove of the workpiece to be processed, so that the output shaft can drive the workpiece to be processed to rotate so as to process the outer circle of the workpiece to be processed, so that the outer wall of the workpiece to be processed is unobstructed, which facilitates the processing of the outer wall of the workpiece to be processed at one time and improves the processing efficiency.

[0007] Preferably, a limiting ring is provided on the outer periphery of the connecting piece; the limiting ring is located on the side of the spline close to the mounting section; the surface of the limiting ring on the side away from the spline abuts against the end of the mounting section away from the connecting section.

[0008] By adopting the above technical solution, the output shaft is abutted by the limiting ring, which improves the stability of the connection between the connecting member and the output shaft; it helps to achieve the positioning of the connecting member and the output shaft along the axial direction, and facilitates the fixation of the connecting member and the output shaft.

[0009] Preferably, the connecting piece and the mounting section are fixedly connected by argon arc welding.

[0010] By adopting the above technical solution, the fixed connection between the connecting piece and the output shaft is achieved through argon arc welding, thereby improving the structural strength of the connection between the connecting piece and the output shaft and increasing the service life of the output shaft.

[0011] Preferably, it further comprises an abutment ring; the abutment ring is coaxially fixedly connected to one end of the mounting section away from the connecting section; the abutment ring is used to abut one end of the workpiece to be processed close to the mounting section.

[0012] By adopting the above technical solution, an abutment ring is provided for abutting the workpiece to be processed, thereby reducing the possibility of frequent collisions between the output shaft and the workpiece to be processed, causing wear of the output shaft, and improving the service life of the output shaft.

[0013] Preferably, an annular groove is provided on the outer periphery of one end of the mounting section away from the connecting section; the abutting ring is embedded in the annular groove.

[0014] By adopting the above technical solution, a ring groove is provided for the abutment ring to be embedded, thereby improving the stability of the connection between the abutment ring and the output shaft, facilitating the abutment ring and the tailstock to cooperate and tighten against the workpiece, and improving the reliability of equipment processing.

[0015] Preferably, the abutment ring and the annular groove are interference fit.

[0016] By adopting the above technical solution, the abutment ring and the ring groove are interference fit, which improves the stability of the connection between the abutment ring and the output shaft, reduces the possibility of the abutment ring falling off during use, and improves the reliability of equipment processing.

[0017] Preferably, an abutment bevel is provided on the outer periphery of the abutment ring; the abutment bevel is used to fit with the chamfer at the notch of the positioning groove of the workpiece to be processed.

[0018] By adopting the above technical solution, a tightening bevel is set so that when the workpiece to be processed is installed on the main shaft, the tightening bevel fits into the chamfer at the notch of the positioning groove of the workpiece to be processed, thereby improving the stability of the workpiece to be processed during processing and improving the reliability of the equipment.

[0019] Preferably, the abutment ring is made of tungsten steel.

[0020] By adopting the above technical solution, the tungsten steel material has a higher hardness to ensure the stability of the workpiece during processing; the tungsten steel material has strong wear resistance, which helps to increase the service life of the abutment ring.

[0021] In summary, this application includes at least one of the following beneficial technical effects:

[0022] 1. The spline cooperates with the positioning groove of the workpiece to be processed, so that the output shaft can drive the workpiece to be processed to rotate so as to process the outer circle of the workpiece to be processed, so that the outer wall of the workpiece to be processed is unobstructed, which facilitates the processing of the outer wall of the workpiece to be processed at one time and improves the processing efficiency;

[0023] 2. The fixed connection between the connector and the output shaft is achieved through argon arc welding to improve the structural strength of the connection between the connector and the output shaft and increase the service life of the output shaft;

[0024] 3. An abutment ring is provided for abutting the workpiece to be processed, thereby reducing the possibility of frequent collisions between the output shaft and the workpiece to be processed, causing wear of the output shaft, and increasing the service life of the output shaft; a tightening bevel is provided so that when the workpiece to be processed is installed on the main shaft, the tightening bevel fits into the chamfer at the notch of the positioning groove of the workpiece to be processed, thereby improving the stability of the workpiece to be processed during processing and improving the reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural diagram of the gear shaft fine grinding tooling.

[0026] Figure 2 It is a partial cross-sectional view of a gear shaft fine grinding tool.

[0027] Description of reference numerals:

[0028] 1. Output shaft; 11. Mounting section; 111. Mounting hole; 112. Ring groove; 113. Connecting hole; 12. Connecting section; 121. Conical surface; 13. Transmission section; 14. First chamfer; 15. Second chamfer;

[0029] 2. Connector; 21. Spline; 22. Limiting ring; 23. Third chamfer;

[0030] 3. Abutment ring; 31. Abutment slope. DETAILED DESCRIPTION

[0031] The present application is further described in detail below with reference to the accompanying drawings.

[0032] Reference Figure 1The embodiment of the present application discloses a gear shaft fine grinding tool including an output shaft 1. The output shaft 1 includes a transmission section 13, a connecting section 12, and a mounting section 11. The transmission section 13 is coaxially fixedly connected to one end of the connecting section 12, and the outer periphery of the transmission section 13 is used for the transmission component to be mounted. The outer wall of the connecting section 12 is a conical surface 121, and the cross-sectional area of ​​the connecting section 12 gradually decreases along the axis of the connecting section 12 toward the direction close to the transmission section 13. In this embodiment, the conical surface 121 is a Morse No. 5 conical surface. The diameter of the transmission section 13 near one end of the connecting section 12 is smaller than the diameter of the connecting section 12 near one end of the transmission section 13, and a first chamfer 14 is provided at the connection between the transmission section 13 and the connecting section 12. The mounting section 11 is coaxially fixedly connected to the other end of the connecting section 12. The diameter of the mounting section 11 near one end of the connecting section 12 is smaller than the diameter of the connecting section 12 near one end of the mounting section 11, and a second chamfer 15 is provided at the connection between the mounting section 11 and the connecting section 12. In this embodiment, the transmission section 13, the connecting section 12 and the installation section 11 are integrally formed.

[0033] Reference Figure 1 and Figure 2 A gear shaft fine grinding tool also includes a connector 2. The connector 2 is coaxially fixedly connected to the end of the mounting section 11 away from the connecting section 12. In this embodiment, the connector 2 and the mounting section 11 are fixedly connected by argon arc welding. The mounting section 11 is coaxially provided with a mounting hole 111 at one end along the axial direction of the mounting section 11. One end of the connector 2 is coaxially embedded in the mounting hole 111. The outer periphery of the end of the connector 2 embedded in the mounting hole 111 is provided with a third chamfer 23. The third chamfer 23 is used for abutting the wall of the mounting hole 111. A spline 21 is provided on the outer periphery of the other end of the connector 2. The spline 21 is used to be embedded in the positioning groove of the workpiece to be processed, and the positioning groove is adapted to the spline 21. A limiting ring 22 is coaxially fixedly connected to the outer periphery of the connector 2. The limiting ring 22 is located on the side of the spline 21 close to the mounting section 11. The surface of the limiting ring 22 on the side away from the spline 21 abuts against the end of the mounting section 11 away from the connecting section 12. In this embodiment, the minor diameter of the spline 21 is larger than the outer diameter of the limiting ring 22 .

[0034] A connecting hole 113 is provided on the wall of the mounting hole 111 near the connecting section 12 , and the connecting hole 113 is connected to the outside. In this embodiment, the axis of the connecting hole 113 is perpendicular to the axis of the mounting hole 111 .

[0035] A gear shaft fine grinding tool also includes an abutment ring 3. The abutment ring 3 is coaxially fixedly connected to the end of the mounting section 11 away from the connecting section 12, and the abutment ring 3 is used to abut the end of the workpiece to be processed close to the mounting section 11. In this embodiment, the abutment ring 3 is made of tungsten steel. An annular groove 112 is provided on the outer periphery of the end of the mounting section 11 away from the connecting section 12. The abutment ring 3 is embedded in the annular groove 112. The inner wall of the abutment ring 3 fits with the groove wall of the annular groove 112. The end of the abutment ring 3 away from the connecting member 2 abuts with the bottom of the annular groove 112. The abutment ring 3 and the annular groove 112 have an interference fit. An abutment bevel 31 is provided on the outer periphery of the side of the abutment ring 3 away from the bottom of the annular groove 112. The abutment bevel 31 is used to fit with the chamfer at the notch of the positioning groove of the workpiece to be processed. In this embodiment, the cone angle of the abutment bevel 31 is 60 degrees.

[0036] The implementation principle of a gear shaft fine grinding tool in an embodiment of the present application is as follows: the output shaft 1 is installed on the grinding machine, and the output shaft 1 is connected to the motor so that the motor can drive the output shaft 1 to rotate, so that the end of the output shaft 1 close to the connecting member 2 extends out of the frame, and the positioning groove of the workpiece to be processed is sleeved on the outer periphery of the connecting member 2, so that the spline 21 of the connecting member 2 is adapted to the positioning groove, so that the connecting member 2 is connected to the keyway of the workpiece to be processed; when the tailstock of the grinding machine abuts the other end of the workpiece to be processed, the chamfer at the notch of the positioning groove of the workpiece to be processed is matched with the abutment bevel 31 of the abutment ring 3, thereby achieving the fixation of the workpiece to be processed, and facilitating the output shaft 1 to drive the workpiece to be processed to rotate.

[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A gear shaft fine grinding tool, characterized by: The invention comprises an output shaft (1) and a connecting member (2); the output shaft (1) comprises a mounting section (11), a connecting section (12) and a transmission section (13); the mounting section (11) is coaxially connected to one end of the connecting section (12); the transmission section (13) is coaxially connected to the other end of the connecting section (12); the connecting member (2) is coaxially fixedly connected to the end of the mounting section (11) away from the connecting section (12); a mounting hole (111) is coaxially provided at one end of the mounting section (11) along the axis of the mounting section (11); one end of the connecting member (2) is coaxially embedded in the mounting hole (111); a spline (21) is provided on the outer periphery of the other end of the connecting member (2); the spline (21) is used to be embedded in a positioning groove of a workpiece to be processed.

2. The gear shaft fine grinding tool according to claim 1, characterized in that: A limiting ring (22) is provided on the outer periphery of the connecting member (2); the limiting ring (22) is located on a side of the spline (21) close to the mounting section (11); a surface of the limiting ring (22) away from the spline (21) abuts against an end of the mounting section (11) away from the connecting section (12).

3. The gear shaft fine grinding tool according to claim 1, characterized in that: The connecting piece (2) and the mounting section (11) are fixedly connected by argon arc welding.

4. The gear shaft fine grinding tool according to claim 1, characterized in that: It also includes an abutment ring (3); the abutment ring (3) is coaxially fixedly connected to one end of the installation section (11) away from the connection section (12); the abutment ring (3) is used to abut one end of the workpiece to be processed close to the installation section (11).

5. The gear shaft fine grinding tool according to claim 4, characterized in that: An annular groove (112) is provided on the outer periphery of one end of the mounting section (11) away from the connecting section (12); the abutting ring (3) is embedded in the annular groove (112).

6. The gear shaft fine grinding tool according to claim 5, characterized in that: The abutment ring (3) and the annular groove (112) are interference fit.

7. The gear shaft fine grinding tool according to claim 4, characterized in that: An abutment bevel (31) is provided on the outer periphery of the abutment ring (3); the abutment bevel (31) is used to fit with the chamfer at the notch of the positioning groove of the workpiece to be processed.

8. The gear shaft fine grinding tool according to claim 7, characterized in that: The abutment ring (3) is made of tungsten steel.

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