Gear milling tool for large-modulus gear shaft

Abstract

The large-modulus gear shaft gear milling tool comprises a first cushion block and a second cushion block, the first cushion block is detachably connected with a first fixing plate, the second cushion block is detachably connected with a second fixing plate, and a correcting plate is arranged on the outer side of the first cushion block. The first cushion block and the second cushion block as well as the first fixing plate and the second fixing plate are matched with each other, the structure is simple, and the large-modulus gear shaft can be conveniently machined.

Description

Technical Field

[0001] The utility model relates to a tool, in particular to a tool for milling gears of a large-module gear shaft. Background Art

[0002] Gears are widely used in life and are the core components of gear transmission devices. The level of gear manufacturing in my country has been greatly improved, and the processing of ordinary gears has reached a high level. So how to improve the processing efficiency and cost savings of mass production is a problem that the gear manufacturing industry has always been concerned about. As the output torque of the gear transmission device continues to increase, the size of its output gear shaft is also increasing. When processing large-module gear shafts, milling machines are generally unable to process directly due to the large diameter of the gear shaft. Utility Model Content

[0003] The utility model aims to provide a tool for machining splines of gear shafts with through holes on a gear hobbing machine, which solves the problem that milling machines in the prior art cannot directly machine large-module gear shafts.

[0004] To achieve the purpose of the utility model, the utility model comprises: a first cushion block and a second cushion block, wherein the first cushion block is detachably connected to a first fixing plate, the second cushion block is detachably connected to a second fixing plate, and a correction plate is provided on the outer side of the first cushion block.

[0005] The first cushion block is provided with a V-shaped opening, the bottom of the V-shaped opening is provided with a bottom arc, and countersunk holes are provided on both sides of the V-shaped opening.

[0006] A boss is provided at the bottom of the first cushion block.

[0007] The first cushion block and the second cushion block have the same structure.

[0008] The first fixing plate comprises a plate body, a through hole is arranged on the plate body, and a top arc is arranged at the lower part of the plate body.

[0009] The first fixing plate and the second fixing plate have the same structure.

[0010] The distance between the bottom arc of the first cushion block and the bottom thereof is greater than the distance between the bottom arc of the second cushion block and the bottom thereof.

[0011] The correction plate is provided with a waist-shaped hole.

[0012] The correction plate is a polygon having the same number of teeth as the gear shaft to be processed.

[0013] The utility model has a simple structure and is convenient for processing a large-module gear shaft by cooperating with the first cushion block and the second cushion block, the first fixing plate and the second fixing plate. Secondly, the correction plate is used to facilitate the adjustment of the gear indexing alignment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the front view of the utility model. Figure 2 for Figure 1 Left view, Figure 3 for Figure 1 Stereoscopic diagram.

[0015] In the figure: 1 correction plate fixing bolt, 2 correction plate, 3 first cushion block, 4 first fixing plate, 5 first fixing bolt, 6 second cushion block, 7 second fixing plate, 8 second fixing bolt, 9 gear shaft, 10 workbench. DETAILED DESCRIPTION

[0016] like Figure 1 , Figure 2 and Figure 3 The utility model shown includes: a first cushion block 3 and a second cushion block 6. The first cushion block 3 is detachably connected to the first fixing plate 4 through a first fixing bolt 5. The second cushion block 6 is detachably connected to the second fixing plate 7 through a second fixing bolt 8. A correction plate 2 is provided on the outer side of the first cushion block 3. The first cushion block 3 is provided with a V-shaped opening. The bottom of the V-shaped opening is provided with a bottom arc. The bottom arc is convenient for increasing the contact area with the gear shaft. Countersunk holes for connecting the first fixing bolt 5 are provided on both sides of the V-shaped opening. A boss is provided at the bottom of the first cushion block for convenient connection to the workbench. The first cushion block 3 and the second cushion block 6 have the same structure, and the distance between the bottom arc of the first cushion block and the bottom thereof is greater than the distance between the bottom arc of the second cushion block and the bottom thereof. The first fixing plate 4 includes: a plate body, a perforation is provided on the plate body, and a top arc is provided at the lower part of the plate body. The first fixing bolt 5 passes through the perforation on the plate body to connect the first cushion block 3. The first fixing plate and the second fixing plate have the same structure. The correction plate 2 is a polygon with the same number of teeth as the gear shaft 9 to be processed, that is, the correction plate 2 is a regular heptagon, and a waist-shaped hole is provided on the correction plate 2, and a top hole is provided on the top of the gear shaft 9. The correction plate fixing bolt 1 passes through the waist-shaped hole and connects to the top hole of the gear shaft 9. When the correction plate is aligned and indexed, it is only necessary to make one side of the polygon of the alignment plate parallel to the workbench.

[0017] When the utility model is in use, the first cushion block 3 and the second cushion block 6 are respectively fixedly mounted on the workbench 10 of the gantry milling machine to support the two ends of the gear shaft 9. The height difference between the first cushion block 3 and the second cushion block 6 corresponding to the axial diameter position of the gear shaft 9 is verified by dialing, and then the two V-shaped cushion blocks are respectively corrected by dialing to ensure that the centers are in the same straight line and parallel to the X-axis of the gantry milling machine workbench 10. Before milling, the correction plate 2 is installed on the gear tooth end of the gear shaft 9, and the correction plate fixing bolt 1 can be lightly fixed. The gear shaft 9 is hoisted onto the first cushion block 3 and the second cushion block 6, and then the correction plate 2 is aligned by the machine tool dialing, and the correction plate fixing bolt 1 is tightened after adjusting it to the appropriate position through the waist-shaped hole on the correction plate 2, that is, the indexing is aligned. Then the matching first fixing block 4 and the first cushion block 3 are connected by the first fixing bolt 5, and the second fixing block 7 and the second cushion block 6 are connected and pressed against the gear shaft 9 by the second fixing bolt 8. After installation and fixing, the gear milling process can be started.

[0018] The above-mentioned embodiments only express several implementation methods of the utility model, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A large-module gear shaft milling tool, characterized in that: include: A first cushion block and a second cushion block, wherein the first cushion block is detachably connected to a first fixing plate, the second cushion block is detachably connected to a second fixing plate, and a correction plate is disposed on an outer side of the first cushion block.

2. A large-module gear shaft milling tool according to claim 1, characterized in that: The first cushion block is provided with a V-shaped opening, the bottom of the V-shaped opening is provided with a bottom arc, and countersunk holes are provided on both sides of the V-shaped opening.

3. A large-module gear shaft milling tool according to claim 2, characterized in that: A boss is provided at the bottom of the first cushion block.

4. A large-module gear shaft milling tool according to claim 2 or 3, characterized in that: The first cushion block and the second cushion block have the same structure.

5. A large-module gear shaft milling tool according to claim 4, characterized in that: The distance between the bottom arc of the first cushion block and the bottom thereof is greater than the distance between the bottom arc of the second cushion block and the bottom thereof.

6. The large-module gear shaft milling tool according to claim 1, characterized in that: The first fixing plate comprises a plate body, a through hole is arranged on the plate body, and a top arc is arranged at the lower part of the plate body.

7. A large-module gear shaft milling tool according to claim 6, characterized in that: The first fixing plate and the second fixing plate have the same structure.

8. The large-module gear shaft milling tool according to claim 1, characterized in that: The correction plate is provided with a waist-shaped hole.

9. A large-module gear shaft milling tool according to claim 8, characterized in that: The correction plate is a polygon having the same number of teeth as the gear shaft to be processed.

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