Gear grinding fixture adapter

Abstract

The utility model relates to a transfer device to solve the technical problem that the existing gear grinding fixture can only be used on one type of gear grinding machine. After the model of the gear grinding machine changes, the gear grinding fixture that matches the processing equipment needs to be redesigned or customized, which affects the normal production arrangement. The utility model provides a gear grinding fixture transfer device, including a transfer plate; the end face of the transfer plate close to the small end of the stepped through hole is a gear grinding fixture installation surface, a first conical surface is provided between the gear grinding fixture installation surface and the small end of the stepped through hole, the end face of the transfer plate close to the large end of the stepped through hole is a gear grinding machine connection surface, and a second conical surface is provided between the gear grinding machine connection surface and the large end of the stepped through hole; the gear grinding fixture is installed on the gear grinding fixture installation surface, the connecting shaft of the gear grinding fixture is installed in the small end of the stepped through hole, and fits with the first conical surface; the transfer plate is installed on the gear grinding machine through the gear grinding machine connection surface, the main shaft of the gear grinding machine is installed in the large end of the stepped through hole, and fits with the second conical surface.

Description

Technical Field

[0001] The utility model relates to a switching device, in particular to a gear grinding fixture switching device. Background Art

[0002] The gear grinding fixture is an indispensable auxiliary device for the gear grinding machine in the gear grinding operation. The gear grinding fixture is used to clamp and position the gear to be processed during the gear grinding operation. This can ensure that the gear to be processed will not shake during the gear grinding process of the gear grinding machine, and further ensure that the gear grinding machine can grind gears that meet the design requirements.

[0003] The Chinese patent document with the publication number CN218926467U discloses a gear grinding fixture for light hole parts, including a fixture body and a live center. The fixture body is fixedly mounted on the machine tool base of the gear grinding machine, and the live center is fixedly mounted on the machine tool tailstock of the gear grinding machine. The top outer wall of the fixture body is provided with a first conical surface, and the top head of the live center is provided with a second conical surface. The first conical surface and the second conical surface have the same taper. A stepped cavity is provided in the bottom of the fixture body for matching the upper structure of the gear grinding machine. A plurality of bolt holes are provided on the bottom edge of the fixture body for fixing and mounting on the machine tool base of the gear grinding machine by bolts, so as to facilitate installation and disassembly.

[0004] The shortcomings are: the gear grinding fixture is directly connected to the gear grinding machine, which means that one gear grinding fixture can only be installed on one type of gear grinding machine for use, and its versatility is poor; after the model of the gear grinding machine changes, it is necessary to redesign or customize the gear grinding fixture that matches the processing equipment, which affects work efficiency and normal production arrangements. Utility Model Content

[0005] The utility model aims to solve the technical problems that the existing gear grinding fixture can only be used on one type of gear grinding machine and has poor versatility; after the model of the gear grinding machine changes, the gear grinding fixture matching the processing equipment needs to be redesigned or customized, which affects the work efficiency and normal production arrangement, and provides a gear grinding fixture adapter device.

[0006] In order to solve the above technical problems, the technical solutions provided by the utility model are as follows:

[0007] A gear grinding fixture adapter is used to connect the connecting shaft of the gear grinding fixture and the main shaft of the gear grinding machine, and its special features are:

[0008] It includes a transfer plate with a stepped through hole in the middle;

[0009] The end surface of the adapter plate close to the small end of the stepped through hole is a gear grinding fixture mounting surface, a first tapered surface is provided between the gear grinding fixture mounting surface and the small end of the stepped through hole, the large end of the first tapered surface is located on one side of the mounting surface, and the small end thereof is connected to the small end of the stepped through hole;

[0010] The end surface of the adapter plate close to the large end of the stepped through hole is a gear grinding machine connection surface, and a second tapered surface is provided between the gear grinding machine connection surface and the large end of the stepped through hole. The large end of the second tapered surface is located on the side of the gear grinding fixture mounting surface, and its small end is connected to the large end of the stepped through hole;

[0011] The gear grinding fixture is installed on the gear grinding fixture installation surface, the connecting shaft of the gear grinding fixture is installed into the small end of the stepped through hole, and the connecting shaft of the gear grinding fixture is in contact with the first tapered surface;

[0012] The adapter plate is installed on the gear grinding machine through the gear grinding machine connection surface, the main shaft of the gear grinding machine is installed in the large end of the stepped through hole, and the main shaft of the gear grinding machine is fitted with the second conical surface.

[0013] Furthermore, a plurality of threaded holes evenly distributed circumferentially around the central axis of the adapter plate are provided on the gear grinding fixture mounting surface of the adapter plate, and the gear grinding fixture is connected to the adapter plate via a plurality of first bolts having the same number as the threaded holes.

[0014] Furthermore, the adapter plate is provided with a plurality of bolt holes evenly distributed circumferentially around the central axis of the adapter plate, and the bolt holes penetrate the adapter plate;

[0015] The adapter plate is connected to the gear grinding machine via a plurality of second bolts having the same number as the bolt holes.

[0016] Furthermore, the adapter plate is provided with a first oil hole connected to the gear grinding fixture oil circuit, a second oil hole connected to the gear grinding machine oil circuit, and an oil channel for connecting the first oil hole and the second oil hole.

[0017] Furthermore, one end of the oil passage is communicated with the outside of the adapter plate, and an oil plug is provided inside the end.

[0018] Furthermore, positioning holes are provided on the gear grinding machine connection surface and the gear grinding fixture installation surface of the adapter plate.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] 1. The gear grinding fixture adapter provided by the utility model can connect gear grinding fixtures of different models to gear grinding machines through an adapter plate, thereby reducing the economic and time costs caused by the need to redesign or customize the gear grinding fixture due to changes in the gear grinding machine, and also increasing the selection of gear grinding fixtures for the trial production of new products with different parameters.

[0021] 2. The gear grinding fixture adapter provided by the utility model has a simple structure and is easy to use. It is also convenient for calibrating the installation accuracy of the adapter and the gear grinding fixture.

[0022] 3. The gear grinding fixture adapter provided by the utility model realizes the connection between the gear grinding fixture oil circuit and the gear grinding machine oil circuit through the first oil hole, the second oil hole and the oil channel, which helps to ensure that the gear grinding fixture can work normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of an embodiment of the utility model;

[0025] Figure 3 for Figure 1 Bottom view of

[0026] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure along section line AA.

[0027] Explanation of the reference numerals: 1-adapter plate; 2-stepped through hole; 21-first conical surface; 22-second conical surface; 3-gear grinding machine connection surface; 4-gear grinding fixture mounting surface; 5-threaded hole; 6-bolt hole; 7-positioning hole; 8-first oil hole; 9-second oil hole; 10-oil channel; 11-oil plug. DETAILED DESCRIPTION

[0028] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] like Figure 1 and Figure 2 As shown, a gear grinding fixture adapter is used to connect the connecting shaft of the gear grinding fixture and the main shaft of the gear grinding machine, including an adapter plate 1 with a stepped through hole 2 in the middle; the adapter plate 1 is a cylindrical structure;

[0030] The end surface of the adapter plate 1 close to the small end of the stepped through hole 2 is the gear grinding fixture mounting surface 4, and a first tapered surface 21 is provided between the gear grinding fixture mounting surface 4 and the small end of the stepped through hole 2. The large end of the first tapered surface 21 is located on one side of the mounting surface 4, and the small end thereof is connected to the small end of the stepped through hole 2; the gear grinding fixture is installed on the gear grinding fixture mounting surface 4, and the connecting shaft of the gear grinding fixture is installed in the small end of the stepped through hole 2, and the connecting shaft of the gear grinding fixture is in contact with the first tapered surface 21;

[0031] The end face of the adapter plate 1 close to the large end of the stepped through hole 2 is the gear grinding machine connecting surface 3, and a second conical surface 22 is provided between the gear grinding machine connecting surface 3 and the large end of the stepped through hole 2. The large end of the second conical surface 22 is located on the side of the gear grinding fixture mounting surface 4, and its small end is connected to the large end of the stepped through hole 2; the adapter plate 1 is installed on the gear grinding machine through the gear grinding machine connecting surface 3, and the main shaft of the gear grinding machine is installed in the large end of the stepped through hole 2, and the main shaft of the gear grinding machine is in contact with the second conical surface 22.

[0032] like Figure 2 As shown, in order to achieve the connection between the adapter plate 1 and the gear grinding fixture, a plurality of threaded holes 5 uniformly distributed circumferentially around the central axis of the adapter plate 1 are provided on the gear grinding fixture mounting surface 4 of the adapter plate 1, and the gear grinding fixture is connected to the adapter plate 1 by a plurality of first bolts having the same number as the threaded holes 5; the gear grinding fixture and the adapter plate 1 are connected by the first bolts, which can limit the lateral and longitudinal displacement of the gear grinding fixture.

[0033] like Figure 1 As shown, in order to achieve the connection between the adapter plate 1 and the gear grinding machine, a plurality of bolt holes 6 are uniformly distributed circumferentially around the central axis of the adapter plate 1, and the bolt holes 6 penetrate the adapter plate 1; the adapter plate 1 is connected to the gear grinding machine through a plurality of second bolts having the same number as the bolt holes 6; the gear grinding machine and the adapter plate 1 are connected by the second bolts to limit the lateral and longitudinal displacement of the adapter plate 1.

[0034] like Figure 4 As shown, in order for the gear grinding fixture to operate normally after the adapter plate 1 is connected to the gear grinding fixture and the gear grinding machine of different models, the adapter plate 1 is provided with a first oil hole 8 connected to the gear grinding fixture oil circuit, a second oil hole 9 connected to the gear grinding machine oil circuit, and an oil passage 10 for connecting the first oil hole 8 and the second oil hole 9. One end of the oil passage 10 is connected to the outside of the adapter plate 1, and an oil plug 11 is provided inside the end.

[0035] like Figure 1 and Figure 2 As shown, in order to quickly align the gear grinding fixture oil circuit with the first oil hole 8 on the adapter plate 1, and the gear grinding machine oil circuit with the second oil hole 9 on the adapter plate 1 during installation, positioning holes 7 are provided on the gear grinding machine connecting surface 3 of the adapter plate 1 and the gear grinding fixture installation surface 4.

[0036] The specific method of using the utility model gear grinding fixture is:

[0037] Align the positioning hole 7 on the gear grinder connecting surface 3 of the adapter plate 1 with the positioning pin on the gear grinder to ensure that the oil path of the gear grinder is aligned with the second oil hole 9;

[0038] Install the main shaft of the gear grinding machine into the large end of the stepped through hole 2 until the main shaft of the gear grinding machine fits with the second conical surface 22, limit the adapter plate 1 by the second conical surface 22, and fix the adapter plate 1 on the gear grinding machine by the second bolt;

[0039] Use the calibration device to calibrate the radial runout and end runout of the adapter. After the calibration is completed, tighten the bolts; pass oil to the second oil hole 9 to check whether there is any blockage;

[0040] Align the positioning hole 7 on the gear grinding fixture mounting surface 4 of the adapter plate 1 with the positioning pin on the gear grinding fixture, and align the first oil hole 8 with the gear grinding machine oil circuit;

[0041] Install the connecting shaft of the gear grinding fixture into the small end of the stepped through hole 2 of the adapter plate 1 until the connecting shaft of the gear grinding fixture fits the first tapered surface 21, limit the connecting shaft of the gear grinding fixture by the first tapered surface 21, and fix the gear grinding fixture to the threaded hole 5 on the adapter plate 1 by the first bolt;

[0042] Use the calibration device to calibrate the radial runout and end runout of the gear grinding fixture. After the calibration is completed, tighten the bolts; control the gear grinding machine to inject oil into the second oil hole 9, the oil channel 10, and the first oil hole 8 to test whether the gear grinding fixture works;

[0043] After the test is completed, the gear grinding fixture is transferred to a gear grinding machine of a different model.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or replacements within the technical scope disclosed in the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope recorded in the claims.

Claims

1. A gear grinding fixture adapter, used to connect the connecting shaft of the gear grinding fixture and the main shaft of the gear grinding machine, characterized in that: It comprises a transfer plate (1) with a stepped through hole (2) in the middle; The end surface of the adapter plate (1) close to the small end of the stepped through hole (2) is a gear grinding fixture mounting surface (4), a first tapered surface (21) is provided between the gear grinding fixture mounting surface (4) and the small end of the stepped through hole (2), the large end of the first tapered surface (21) is located on one side of the gear grinding fixture mounting surface (4), and the small end thereof is connected to the small end of the stepped through hole (2); The end surface of the adapter plate (1) close to the large end of the stepped through hole (2) is a gear grinding machine connection surface (3), a second tapered surface (22) is provided between the gear grinding machine connection surface (3) and the large end of the stepped through hole (2), the large end of the second tapered surface (22) is located on the side of the gear grinding fixture mounting surface (4), and the small end thereof is connected to the large end of the stepped through hole (2); The gear grinding fixture is installed on the gear grinding fixture installation surface (4), the connecting shaft of the gear grinding fixture is installed in the small end of the stepped through hole (2), and the connecting shaft of the gear grinding fixture is in contact with the first tapered surface (21); The adapter plate (1) is installed on the gear grinding machine via the gear grinding machine connection surface (3), the main shaft of the gear grinding machine is installed in the large end of the stepped through hole (2), and the main shaft of the gear grinding machine is in contact with the second conical surface (22).

2. The gear grinding fixture adapter according to claim 1, characterized in that: A plurality of threaded holes (5) are evenly distributed circumferentially around the central axis of the adapter plate (1) on the gear grinding fixture mounting surface (4) of the adapter plate (1); the gear grinding fixture is connected to the adapter plate (1) via a plurality of first bolts having the same number as the threaded holes (5).

3. The gear grinding fixture adapter according to claim 1, characterized in that: The adapter plate (1) is provided with a plurality of bolt holes (6) uniformly distributed in the circumferential direction around the central axis of the adapter plate (1), and the bolt holes (6) penetrate the adapter plate (1); The adapter plate (1) is connected to the gear grinding machine via a plurality of second bolts having the same number as the bolt holes (6).

4. The gear grinding fixture adapter according to any one of claims 1 to 3, characterized in that: The adapter plate (1) is provided with a first oil hole (8) connected to the gear grinding fixture oil circuit, a second oil hole (9) connected to the gear grinding machine oil circuit, and an oil passage (10) for connecting the first oil hole (8) and the second oil hole (9).

5. The gear grinding fixture adapter according to claim 4, characterized in that: One end of the oil passage (10) is in communication with the outside of the adapter plate (1), and an oil plug (11) is provided inside the end.

6. The gear grinding fixture adapter according to claim 4, characterized in that: Positioning holes (7) are provided on the gear grinding machine connection surface (3) and the gear grinding fixture installation surface (4) of the adapter plate (1).

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