CN220073305U

CN220073305U - Deep hole inner groove forming cutter

Info

Publication number: CN220073305U
Application number: CN202321700971.8U
Authority: CN
Inventors: 张小龙; 成春雷; 张彦宾; 赵玉田; 管宁静; 杜伟; 张晨宇; 李菲菲; 高家辉; 王进一; 刘世杰
Original assignee: Shanxi North Machine Building Co Ltd
Current assignee: Shanxi North Machine Building Co Ltd
Priority date: 2023-06-30
Filing date: 2023-06-30
Publication date: 2023-11-24
Anticipated expiration: 2033-06-30

Abstract

The utility model belongs to the technical field of machining and discloses a deep hole inner groove forming cutter, which comprises a cutter handle, wherein the cutter handle is a cuboid, one end of the cutter handle is provided with a connecting part, and the other end of the cutter handle is fixedly provided with a cutter head; the cutter head is a triangular prism, the section of the cutter head is matched with the shape of a triangular groove to be processed, the cutter head is obliquely arranged on the upper surface of the cutter handle, and the front cutting edge angle is 75 degrees and the rear cutting edge angle is 6 degrees. Compared with electrolysis and wire-cut electric discharge machining, the technical scheme of the utility model has the characteristics of high efficiency, low machining cost, simple structure and convenient operation, and can obtain higher machining precision and surface finish.

Description

Deep hole inner groove forming cutter

Technical Field

The utility model belongs to the technical field of machining, and particularly relates to a special-shape deep hole inner groove forming tool.

Background

When certain deep hole parts are used for machining inner hole grooves with special shapes, special machining technologies such as electrolysis, wire-cut electric discharge machining and the like are generally adopted. The existing product needs to process a six-equal-division linear groove with a 120-degree triangle shape, as shown in fig. 1, six triangle linear grooves are uniformly distributed in the inner hole of the cylinder part. However, electrolytic processing costs are high; wire electric discharge machining efficiency is low.

Disclosure of Invention

First, the technical problem to be solved

The utility model aims to solve the technical problems that: when the deep hole part inner groove is machined, the electrolytic machining cost is high, and the wire-cut electric discharge machining efficiency is low.

(II) technical scheme

In order to solve the technical problems, the utility model provides a deep hole inner groove forming cutter, which comprises a cutter handle, wherein the cutter handle is a cuboid, one end of the cutter handle is provided with a connecting part, and the other end of the cutter handle is fixedly provided with a cutter head; the cutter head is a triangular prism, the section of the cutter head is matched with the shape of a triangular groove to be processed, the cutter head is obliquely arranged on the upper surface of the cutter handle, and the front cutting edge angle is 75 degrees and the rear cutting edge angle is 6 degrees.

The included angle between the front end face of the cutter head and the vertical direction is 9 degrees.

Wherein, be provided with the transition arc surface between the preceding terminal surface of tool bit and the handle of a knife.

Wherein, the connecting portion of handle of a knife sets up the screw hole that is fixed cutter.

Wherein, the screw hole is countersunk hole structure.

When the tool is used, the corresponding tool bar 3 is connected with the main shaft 2 of the machine tool, the tool body 4 is connected with the tool bar, the tool is placed into the tool body groove and fastened by a screw, and the part to be processed is placed on the V-shaped frame 7 for alignment and clamping.

During processing, processing parameters are adjusted, and the motor 1 drives the cutter bar 3 to drive the cutter body to reciprocate on the guide rail 6.

(III) beneficial effects

Compared with the prior art, the utility model has the following beneficial effects: compared with electrolysis and wire-cut electric discharge machining, the wire-cut electric discharge machining device has the characteristics of high efficiency, low machining cost, simple structure and convenience in operation, and can obtain higher machining precision and surface finish.

Drawings

FIG. 1 is a schematic diagram of a machined part groove;

FIG. 2 is a schematic view of a three-dimensional structure of a tool according to the present utility model;

FIG. 3a is a front cross-sectional view of a tool;

FIG. 3b is a top view of the tool;

FIG. 4 is a three-dimensional pictorial view of a tool and machine tool construction;

fig. 5 is a partially enlarged three-dimensional schematic view of a tool or a machine tool.

Detailed Description

For the purposes of clarity, content, and advantages of the present utility model, a detailed description of the embodiments of the present utility model will be described in detail below with reference to the drawings and examples.

As shown in fig. 2, 3a and 3b, the deep hole inner groove forming cutter comprises a cutter handle, wherein the cutter handle is rectangular, one end of the cutter handle is provided with a connecting part, and the other end of the cutter handle is fixedly provided with a cutter head; the cutter head is a triangular prism, the section of the cutter head is matched with the shape of a triangular groove to be processed, the cutter head is obliquely arranged on the upper surface of the cutter handle, and the front cutting edge angle is 75 degrees and the rear cutting edge angle is 6 degrees.

The included angle between the front end face of the cutter head and the vertical direction is 9 degrees, namely the included angle between the face where I in fig. 3a is located and the vertical direction is 9 degrees, so that larger cutting force can be ensured; in fig. 3a, the position II is a transitional arc surface between the front end surface of the cutter head and the cutter handle, so that the strength of the cutter can be ensured, the chip can be broken smoothly, the chip can be rolled up, and the phenomenon of sticking the cutter can be overcome. Meanwhile, the transition arc surface at the position II increases the radiating surface. The connecting part (namely III) of the cutter handle is provided with a threaded hole for fixing the cutter, and the cutter handle is of a countersunk hole structure, so that smooth discharge of machining scraps is facilitated, and accumulation is avoided.

As shown in fig. 4-5, the corresponding cutter bar 3 is connected with the main shaft 2 of the machine tool, the cutter body 4 is connected with the cutter bar, the cutter 8 is placed into the cutter body groove and fastened by a screw, and the part 5 to be processed is placed on the V-shaped frame 7 for alignment and clamping. During processing, processing parameters are adjusted, and the motor 1 drives the cutter bar 3 and the cutter body to reciprocate on the guide rail 6.

The utility model solves the machining problem of deep hole inner grooves with special shapes, and has the characteristics of high machining precision, good surface quality, simple structure, low machining cost and high efficiency.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims

1. The deep hole inner groove forming cutter is characterized by comprising a cutter handle, wherein the cutter handle is a cuboid, one end of the cutter handle is provided with a connecting part, and the other end of the cutter handle is fixedly provided with a cutter head; the cutter head is a triangular prism, the section of the cutter head is matched with the shape of a triangular groove to be processed, the cutter head is obliquely arranged on the upper surface of the cutter handle, and the front cutting edge angle is 75 degrees and the rear cutting edge angle is 6 degrees.

2. The deep hole inner groove forming tool according to claim 1, wherein the angle between the front end surface of the tool bit and the vertical direction is 9 °.

3. The deep hole inner groove forming tool according to claim 2, wherein a transitional arc surface is arranged between the front end surface of the tool bit and the tool shank.

4. The deep hole inner groove forming tool of claim 1, wherein the connecting portion of the shank is provided as a threaded hole for fixing the tool.

5. The deep hole inner groove forming tool of claim 4, wherein the threaded hole is a counter bore configuration.

6. Deep hole inner groove forming cutter according to claim 1, characterized in that, in use, the corresponding cutter bar (3) is connected with the main shaft (2) of the machine tool, the cutter body (4) is connected with the cutter bar, the cutter is placed into the cutter body groove and fastened by a screw, and the part to be processed is placed on the V-shaped frame (7) for alignment and clamping.

7. The deep hole inner groove forming cutter according to claim 6, wherein during processing, processing parameters are adjusted, and the motor (1) drives the cutter bar (3) to drive the cutter body to reciprocate on the guide rail (6).