A spindle connection device for a worm wheel gear grinding machine

Abstract

The utility model discloses a spindle connection device for a worm wheel gear grinding machine, comprising: a spindle, an adjustable flange mounted on the spindle, a grinding wheel mounted on the flange, a cover plate mounted on the flange, and the cover plate presses the grinding wheel onto the flange. By mounting a flange with an adjustable gap on the rotating shaft, the gap between the flange and the spindle is controllable, and at the same time, the connection rigidity between the grinding wheel and the spindle is improved, thereby increasing the stability and reliability of the entire device, ensuring the processing accuracy, and increasing the service life of the entire device.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machine devices, in particular to a main shaft connecting device of a worm grinding wheel gear grinding machine. Background Art

[0002] The rapid development of new energy, reducer, medium truck, heavy truck and other industries requires high-precision and high-stability hardened gears. To achieve a stable gear tooth profile error within 2μm, the precision and rigidity of the grinding wheel spindle must be stable and reliable. Among them, the connection between the grinding wheel and the spindle depends on the grinding wheel flange, so the connection rigidity between the grinding wheel flange and the spindle is particularly important.

[0003] However, it is difficult to ensure that the grinding wheel flange and the spindle have strong contact rigidity on both the conical surface and the end surface in the prior art. If the conical surface contacts well, the end surface contact rigidity will be weaker, and vice versa. How to increase the contact pressure between the conical surface and the end surface, and thus improve the contact rigidity, is a technical difficulty. Utility Model Content

[0004] In view of the above defects or shortcomings, the purpose of the utility model is to provide a main shaft connecting device for a worm wheel gear grinding machine.

[0005] In order to achieve the above purpose, the technical solution of the utility model is:

[0006] A main shaft connection device for a worm wheel gear grinder comprises a main shaft, an adjustable flange is mounted on the main shaft, a grinding wheel is clamped and mounted on the flange, a cover plate is mounted on the flange, and the cover plate presses the grinding wheel onto the flange.

[0007] An annular groove is arranged at the end of the flange, and the main shaft is installed in the annular groove.

[0008] The inner wall of the flange is provided with a tapered surface, and the tapered surface is in contact with the main shaft.

[0009] The flange is connected to the main shaft via an adjustable connection mechanism.

[0010] The connecting mechanism is a connecting screw.

[0011] A first aluminum pad is provided on the contact surface between the grinding wheel and the flange.

[0012] A second aluminum pad is arranged between the grinding wheel and the cover plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model provides a main shaft connection device for a worm wheel gear grinding machine. By installing a flange with an adjustable gap on a rotating shaft, the gap between the flange and the main shaft can be controlled. At the same time, the connection rigidity between the grinding wheel and the main shaft is improved, the use stability and reliability of the entire device are increased, the processing accuracy is guaranteed, and the service life of the entire device is increased.

[0015] Furthermore, since the flange is designed with a slotted size, the grinding wheel flange after the slot is conducive to the contact of the cone surface, thereby improving the bonding rigidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a main shaft connection device of a main shaft connection device of a worm wheel gear grinding machine of the utility model;

[0017] Figure 2 It is a schematic diagram of the flange structure of the utility model.

[0018] In the figure, 1 is a cover plate; 3 is a flange; 4 is a grinding wheel; 5 is a connecting screw; 6 is a main shaft; 7 is a screw; 8 is an annular groove; 21 is a first aluminum pad; 22 is a second aluminum pad; 31 is a conical surface. DETAILED DESCRIPTION

[0019] The utility model will be described in detail below in conjunction with the accompanying drawings. 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 protection scope of the utility model.

[0020] like Figure 1 , 2 As shown, the utility model provides a spindle connection device for a worm wheel gear grinding machine, comprising: a spindle 6, an adjustable flange 3 is installed on the spindle 6, a grinding wheel 4 is clamped and installed on the flange 3, a cover plate 1 is installed on the flange 3, and the cover plate 1 presses the grinding wheel 4 onto the flange 3.

[0021] Preferably, the end of the flange 3 in the utility model is provided with an annular groove 8 to form a flange tapered hole, and the flange tapered hole becomes a thin-walled structure, and the spindle 6 is installed in the annular groove 8. In addition, the inner wall of the flange 3 is provided with a tapered surface 31, and the tapered surface 31 is in contact with the spindle 6, that is, the connection mode between the flange 3 and the spindle 6 is a short cone end surface connection. The slot size of the annular groove 8 needs to be reasonably designed, which not only ensures the wall thickness of the tapered hole, but also analyzes and tightens the deformation of the tapered hole when the flange and the spindle are connected. The screw, contact pressure and whether plastic deformation occurs at the bottom of the groove.

[0022] In order to adjust the gap between the flange 3 and the main shaft 6 to meet the rigidity adjustment requirement, the flange 3 is connected to the main shaft 6 via an adjustable connection mechanism. Exemplarily, the connection mechanism is a connection screw 5, and its rigidity is controlled by rotating the connection screw 5 to loosen or tighten it.

[0023] In addition, in the present invention, a first aluminum pad 21 is provided on the contact surface between the grinding wheel 4 and the flange 3 , and a second aluminum pad 22 is provided between the grinding wheel 4 and the cover plate 1 .

[0024] In order to press and fix the grinding wheel 4 and the cover plate 1 , in the utility model, the cover plate 1 is fixedly mounted on the grinding wheel 4 by screws 7 .

[0025] The working principle of the utility model is:

[0026] When there is a small gap between the flange 3 and the spindle 6 axially, when the connecting screws 5 are tightened, the flange tapered hole is elastically deformed. When the connecting screws 5 are tightened, the gap between the flange 3 and the spindle 6 disappears, and the flange tapered hole is in contact with the spindle cone at the same time, which increases the contact pressure of the cone surface and the end surface, improves the contact stiffness, and thus improves the connection rigidity between the grinding wheel flange and the spindle.

[0027] It is obvious to those skilled in the art that the above-mentioned specific examples are only preferred schemes of the present invention. Therefore, the improvements and changes that may be made by those skilled in the art to certain parts of the present invention still reflect the principles of the present invention and achieve the purpose of the present invention, and all belong to the scope of protection of the present invention.

Claims

1. A spindle connection device for a worm wheel gear grinding machine, characterized in that: include: A main shaft (6) is provided with an adjustable flange (3) on which a grinding wheel (4) is mounted in a snap-fit ​​manner; a cover plate (1) is provided on the flange (3); and the cover plate (1) presses the grinding wheel (4) against the flange (3).

2. The main shaft connection device of the worm wheel gear grinding machine according to claim 1, characterized in that: An annular groove (8) is provided at the end of the flange (3), and the main shaft (6) is installed in the annular groove (8).

3. The main shaft connection device of the worm wheel gear grinding machine according to claim 1 or 2, characterized in that: The inner wall of the flange (3) is provided with a tapered surface (31), and the tapered surface (31) is in contact with the main shaft (6).

4. The main shaft connection device of the worm wheel gear grinding machine according to claim 1, characterized in that: The flange (3) is connected to the main shaft (6) via an adjustable connection mechanism.

5. The main shaft connection device of the worm wheel gear grinding machine according to claim 4, characterized in that: The connecting mechanism is a connecting screw (5).

6. The main shaft connection device of the worm wheel gear grinding machine according to claim 1, characterized in that: A first aluminum pad (21) is provided on the contact surface between the grinding wheel (4) and the flange (3).

7. The main shaft connection device of the worm wheel gear grinding machine according to claim 1 or 5, characterized in that: A second aluminum pad (22) is provided between the grinding wheel (4) and the cover plate (1).

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