An internal gear machining tool

Abstract

This utility model discloses an internal gear machining tool, relating to the field of machining technology. It includes a insert holder and a machining shaft. The outer surface of the machining shaft has a first mounting groove, and a second mounting groove is formed on the side of the first mounting groove. The first mounting groove and the second mounting groove communicate internally, and a limiting block is installed inside the second mounting groove. The insert holder is installed in the first mounting groove, and the limiting block mounts the insert holder onto the machining shaft. This utility model also features a second through hole at the center of the cutting head, and third through holes on the other outer surfaces of the cutting head not connected to the cutting tool holder. All third through holes communicate with the second through holes, facilitating the discharge of chips generated during the cutting process.

Description

Technical Field

[0001] This utility model relates to the field of machining technology, and in particular to a tool for machining internal gears. Background Technology

[0002] Traditional internal gear teeth are relatively deep. When machining with a taper shank cutter, one type of cutter can only machine one type of tooth. Furthermore, the multiple cutting heads of the taper shank cutter during machining make chip removal difficult. In addition, current machining tools have limited functionality and cannot be used simultaneously to cut teeth of different specifications.

[0003] Chinese utility model patent CN202479621U discloses a gear machining tool. The technical solution includes a front end cover, a rear end cover, a cutting part, and a guide shaft. The cutting part is an internal gear cutting insert, which includes a base and internal cutting teeth on the base that match the shape of the gear to be machined. The rake face of the internal cutting teeth is higher than the cutting edge plane of the internal gear cutting insert, and the rake face is located on the feed port side of the internal gear cutting insert. The groove depth of the internal cutting teeth on the discharge port side of the internal gear cutting insert is greater than the groove depth of the internal cutting teeth on the feed port side of the internal gear cutting insert. This utility model uses a structure where the rake face is higher than the cutting edge plane, making machining easier, allowing for a larger rake angle and cutting edge, facilitating chip removal, and providing durability. However, it cannot cut teeth of varying depths.

[0004] Therefore, it is necessary to design a new type of internal gear machining tool that can not only effectively remove waste chips, but also cut teeth of different specifications. Utility Model Content

[0005] To address the existing problems of inconvenient waste removal and limited functionality, this utility model provides an internal gear machining tool.

[0006] To achieve the objectives of this utility model, the technical solution adopted is as follows:

[0007] An internal gear machining tool includes a cutting insert and a machining shaft. The outer surface of the machining shaft is provided with a first mounting groove, and a second mounting groove is provided on the side of the first mounting groove. The first mounting groove and the second mounting groove are in communication, and a limiting block is installed in the second mounting groove. The cutting insert is installed in the first mounting groove, and the limiting block is used to install the cutting insert on the machining shaft.

[0008] Based on the above technical solution, further, the depth of the first mounting groove is greater than the depth of the second mounting groove.

[0009] Based on the above technical solution, the limiting block further includes a horizontal part and a vertical part, wherein the horizontal part and the vertical part are integrally formed or detachably connected.

[0010] Based on the above technical solution, the horizontal part and the vertical part are connected to form an L-shaped shape.

[0011] Furthermore, based on the above technical solution, a limiting part is provided between the first mounting slot and the second mounting slot.

[0012] Based on the above technical solution, a first through hole is provided on the transverse part, and a second through hole is provided on the machining shaft on the opposite side of the second mounting groove with the first mounting groove as the axis. When the limiting block is pushed forward, the first through hole and the second through hole just overlap.

[0013] Based on the above technical solution, the blade inserter further includes a cutting head and a cutting shank, which are connected by an integral molding process.

[0014] Based on the above technical solution, a first through hole is provided at the middle position of the cutting tool holder.

[0015] Based on the above technical solution, the cutting tool head is further provided with a second through hole and a third through hole, and the third through hole is connected to the second through hole.

[0016] Based on the above technical solution, further, one end of the cutting tool holder is installed in the first mounting groove.

[0017] Compared with the prior art, the beneficial effects of this utility model are specifically reflected in:

[0018] (1) This utility model provides a second through hole at the center of the cutting head, and a third through hole on the other outer surfaces of the cutting head that are not connected to the cutting shank. All the third through holes are connected to the second through hole, so that the waste generated during the cutting process can be discharged from these through holes.

[0019] (2) This utility model sets multiple second mounting slots at different height positions of the machining shaft to facilitate the installation of different sized inserts, thereby achieving the cutting of internal teeth of different sizes.

[0020] (3) The blade inserter of this utility model is detachably mounted on the machining shaft. It has a simple structure and is easy to disassemble. When some of the blade inserters are damaged, only the damaged parts can be replaced, which reduces production costs and extends service life. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the machining shaft in this utility model;

[0022] Figure 2 This is a partial structural diagram of the blade inserter in this utility model;

[0023] Figure 3 This is a schematic diagram of the cutting head structure in this utility model;

[0024] Figure 4 This is a schematic diagram of the limiting block in this utility model;

[0025] Reference numerals: 1. Cutting head; 2. Cutting shank; 3. First through hole; 4. Second through hole; 5. Third through hole; 6. Machining shaft; 7. First mounting groove; 8. Second mounting groove; 9. First through hole; 10. Second through hole; 11. Horizontal part; 12. Vertical part. Detailed Implementation

[0026] The present invention will be further described and illustrated below with reference to the accompanying drawings and specific embodiments. The technical features of each embodiment of the present invention can be combined accordingly, provided that there is no mutual conflict.

[0027] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below. Technical features in various embodiments of this utility model can be combined appropriately without conflict.

[0028] In the description of this utility model, it should be understood that when an element is considered to be "connected" to another element, it can be directly connected to the other element or indirectly connected, i.e., there is an intermediate element. Conversely, when an element is said to be "directly" connected to another element, there is no intermediate element.

[0029] In the description of this utility model, it should be understood that the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include at least one of those features.

[0030] Example

[0031] Combination Figures 1-4 As shown, this embodiment provides an internal gear machining tool, which includes a cutting insert and a machining shaft 6. The cutting insert can be provided in one or more pieces, and the cutting insert is detachably mounted on the machining shaft 6.

[0032] In this embodiment, a certain number of first mounting grooves 7 are uniformly provided on the outer surface of the machining shaft 6. A second mounting groove 8 is provided on the side of the first mounting groove 7. The groove depth of the first mounting groove 7 is greater than the groove depth of the second mounting groove 8. The first mounting groove 7 and the second mounting groove 8 are internally connected.

[0033] Furthermore, several second mounting slots 8 are provided, each containing a limiting block. Each limiting block includes a horizontal portion 11 and a vertical portion 12. The horizontal portion 11 and the vertical portion 12 can be integrally formed or detachably connected, forming an L-shape after connection. The horizontal portion 11 can move within the second mounting slot 8. It should be noted that multiple second mounting slots 8 are provided at different heights of the machining shaft 6 to facilitate the installation of inserts of different sizes, thereby achieving the cutting of internal teeth of different sizes. Pushing the vertical portion 12 advances the horizontal portion 11 within the second mounting slot 8, extending it beyond the second mounting slot 8. It should be noted that a limiting portion is provided between the first mounting slot 7 and the second mounting slot 8, serving as the final position for the vertical portion 12 to advance forward.

[0034] Furthermore, a first through hole 9 is provided on the transverse portion 11. With the first mounting groove 7 as the axis, a second through hole 10 is provided on the machining shaft 6 opposite to the second mounting groove 8, and the side of the second through hole 10 communicates with the first mounting groove 7. When the limiting block is pushed forward, the transverse portion 11 of the limiting block can enter the position below the second through hole 10, communicating with the first mounting groove 7. At this time, the second through hole 10 and the first through hole 9 overlap vertically. By using mounting screws, bolts, or other fasteners to fix the first through hole 9 and the second through hole 10, the connection between the limiting block and the machining shaft 6 can be achieved. It should be noted that, depending on the actual situation, a threaded structure can be provided in the first through hole 9 and / or the second through hole 10.

[0035] In this embodiment, the blade inserter includes a cutting head 1 and a cutting shank 2, which can be connected in an integral molding manner.

[0036] Furthermore, a first through hole 3 is provided in the middle position of the cutting tool holder 2. During installation, one end of the cutting tool holder 2 is installed in the first mounting groove 7, and the transverse part 11 of the limiting block passes through the first through hole 3. When the limiting block and the machining shaft 6 are connected, the cutting tool holder 2 is also fixed on the machining shaft 6.

[0037] In some other embodiments, the blade inserter has the same structure, but the size can be different. By installing blade inserters of different sizes, teeth of different specifications or depths can be processed.

[0038] In this embodiment, the cutting head 1 can be shaped like a triangular pyramid, with the pointed end facing outwards for rapid cutting. Specifically, a second through hole 4 is provided at the center of the cutting head 1, while third through holes 5 are provided on the outer surfaces of the other sides of the cutting head 1 that are not connected to the cutting shank 2, and all the third through holes 5 communicate with the second through hole 4. The purpose of providing the second through hole 4 and multiple third through holes 5 is to allow waste chips generated during the cutting process to be discharged from these through holes. It should be noted that this tool can be used for machining parts with internal tooth structures.

[0039] The above are merely embodiments of this utility model, described in a relatively specific and detailed manner, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. An inner tooth processing tool characterized by, It includes a blade inserter and a machining shaft. The outer surface of the machining shaft is provided with a first mounting groove, and a second mounting groove is provided on the side of the first mounting groove. The first mounting groove and the second mounting groove are connected internally, and a limiting block is installed in the second mounting groove. The insert cutter is installed in the first mounting slot and mounted on the machining axis by a limiting block.

2. A tool according to claim 1, wherein The depth of the first mounting groove is greater than the depth of the second mounting groove.

3. A tool according to claim 1, wherein The limiting block includes a horizontal part and a vertical part, wherein the horizontal part and the vertical part are integrally formed or detachably connected.

4. A tool according to claim 3, wherein the tool is a tool for machining an internal toothing. The horizontal and vertical parts are connected to form an L-shaped structure.

5. A tool according to claim 1, wherein A limiting part is provided between the first mounting slot and the second mounting slot.

6. A tool according to claim 3, wherein A first through hole is provided on the transverse part. With the first mounting groove as the axis, a second through hole is provided on the machining shaft on the opposite side of the second mounting groove. When the limiting block is pushed forward, the first through hole and the second through hole just overlap.

7. A tool according to claim 1, wherein The blade inserter includes a cutting head and a cutting shank, and the cutting head and the cutting shank are connected by an integral molding process.

8. A tool according to claim 7, wherein The cutting tool holder has a first through hole at the middle position.

9. A tool according to claim 7, wherein The cutting tool head has a second through hole and a third through hole, and the third through hole is connected to the second through hole.

10. A tool according to claim 7, wherein One end of the cutting tool holder is installed in the first mounting slot.

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