CN214557687U

CN214557687U - Elastic axial avoiding milling cutter

Info

Publication number: CN214557687U
Application number: CN202023104052.3U
Authority: CN
Inventors: 李喜龙; 王继鑫; 刘影; 周全; 崔凤鹏; 张雷; 刘天宇; 姜嘉平
Original assignee: Csic Longjiang Gh Turbine Co ltd
Current assignee: Csic Longjiang Gh Turbine Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-11-02
Anticipated expiration: 2030-12-22

Abstract

An object of the utility model is to provide a milling cutter is dodged to elasticity axial, including cutter body, telescopic link, milling cutter head, the cutter body is hollow structure, and its hollow structure is including flexible chamber, air vent, and the air vent is located flexible chamber top and communicates with each other rather than, and the telescopic link setting is in flexible chamber, and the milling cutter head is installed at the tip of telescopic link, and the cover has the spring on the telescopic link, and the cutter body below is fixed with the baffle. The utility model discloses workable top layer hardness is little, the big part of bottom hardness, and the size of top layer and bottom can not the inaccuracy. When the top layer to the bottom layer of the part is machined, the part can be avoided, the structure of the bottom layer is not damaged, machining of different hardness intervals of the same part can be achieved, and the problem that the traditional milling cutter cannot machine the parts is solved.

Description

Elastic axial avoiding milling cutter

Technical Field

The utility model relates to a machining tool, specifically speaking are milling cutters.

Background

Conventional milling cutters are rotary cutters having one or more teeth that can machine flats, steps, grooves, formed surfaces, and the like. Milling cutters are generally classified into cylindrical milling cutters, face milling cutters, end milling cutters, face-edge milling cutters, angle milling cutters, saw-blade milling cutters, T-shaped milling cutters, and the like. However, when the hardness of the processed materials is different, the hardness of the top layer is small, the hardness of the bottom layer is large, and the precise sizes of the top layer and the bottom layer cannot be measured, the top layer needs to be processed without damaging the bottom layer, and all the conventional milling cutters cannot meet the requirements at present.

Disclosure of Invention

An object of the utility model is to provide a milling cutter is dodged to elasticity axial of the big part of workable top layer hardness little, bottom hardness.

The purpose of the utility model is realized like this:

the utility model relates to a milling cutter is dodged to elasticity axial, characterized by: the milling cutter comprises a cutter body, a telescopic rod and a milling cutter head, wherein the cutter body is of a hollow structure, the hollow structure comprises a telescopic cavity and an air vent, the air vent is positioned above the telescopic cavity and communicated with the telescopic cavity, the telescopic rod is arranged in the telescopic cavity, the milling cutter head is arranged at the end part of the telescopic rod, a spring is sleeved on the telescopic rod, and a baffle is fixed below the cutter body.

The utility model discloses can also include:

1. the telescopic cavity below is the spring chamber, and the diameter in spring chamber is greater than telescopic cavity, and the top of telescopic link sets up the spring and keeps off the shoulder, and the spring is located the spring chamber, and spring one end pushes up on the cutter body inner wall on spring chamber top, and the other end pushes up on the spring keeps off the shoulder, and the baffle restriction spring keeps off the shoulder.

2. The bottom of the telescopic rod is a flat head, the positioning bolt extends into the cutter body through a bolt hole in the cutter body and contacts with the flat head, and a locking nut is screwed on the positioning bolt.

3. The friction force of the positioning bolt on the flat head is between 5 and 10N, and the elastic force of the spring is between 10 and 20N.

4. When the axial feeding machining is carried out, normal machining is carried out when the axial force is not more than 30N; when the axial force is greater than 30N, the spring is compressed to generate a cutter back, so that the bottom layer of the part is protected from being machined.

The utility model has the advantages that: the utility model discloses workable top layer hardness is little, the big part of bottom hardness, and the size of top layer and bottom can not the inaccuracy. When the top layer to the bottom layer of the part is machined, the part can be avoided, the structure of the bottom layer is not damaged, machining of different hardness intervals of the same part can be achieved, and the problem that the traditional milling cutter cannot machine the parts is solved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

The invention will be described in more detail below by way of example with reference to the accompanying drawings:

referring to the drawings, the utility model relates to an elasticity axial dodges milling cutter, its constitution includes

cutter body

1, 1 inside telescopic link 2 that has of cutter body, 2 bottoms of telescopic link and top have flat head 201 and spring fender shoulder 202 respectively, spring fender shoulder 202 upper surface and the contact of spring 3, cutter body 1 passes through screw 5 with baffle 4 to be connected, 2 bottoms of telescopic link are connected with milling cutter head 6, cutter body 1 left side is passed through the bolt hole and is connected with circumference positioning bolt 7, circumference positioning bolt 7 passes through the screw thread and is connected with lock nut 8.

The cutter body 1 is provided with a vent hole 101, and the vent hole 101 is communicated with a telescopic cavity 102.

The circumferential positioning bolt 7 is in contact with the flat head 201, and the contact friction force is between 5 and 10N.

The elasticity of the spring 3 is between 10 and 20N.

Firstly, a spring 3 is placed on a telescopic rod 2, then a flat head 201 at the top of the telescopic rod 2 is aligned to a threaded hole in the left side of a cutter body 1, the telescopic rod 2 and the spring 3 are plugged into the cutter body 1, the telescopic rod 2 is blocked by a baffle 4, the baffle 4 is fixed on the cutter body 1 by a screw, a circumferential positioning bolt 7 is screwed into the cutter body 1 through a thread, the flat head 201 is tightly propped at the right end of the circumferential positioning bolt, the telescopic rod 2 is prevented from rotating circumferentially, a milling head 6 is installed on the telescopic rod 2, and after the installation, the top of the cutter body 1 is connected with a machine tool to be clamped.

Before machining, it is determined that the circumferential positioning bolt 7 is screwed, when axial force is not greater than 30N during axial feed machining, normal machining is performed, when a bottom layer is cut, the axial force is greater than 30N due to the fact that hardness of the bottom layer is large, the spring 3 can be compressed to generate cutter back-off, and the bottom layer of a part is protected from being machined.

Claims

1. The utility model provides a milling cutter is dodged to elasticity axial which characterized by: the milling cutter comprises a cutter body, a telescopic rod and a milling cutter head, wherein the cutter body is of a hollow structure, the hollow structure comprises a telescopic cavity and an air vent, the air vent is positioned above the telescopic cavity and communicated with the telescopic cavity, the telescopic rod is arranged in the telescopic cavity, the milling cutter head is arranged at the end part of the telescopic rod, a spring is sleeved on the telescopic rod, and a baffle is fixed below the cutter body.

2. The resilient axial relief mill according to claim 1, wherein: the telescopic cavity below is the spring chamber, and the diameter in spring chamber is greater than telescopic cavity, and the top of telescopic link sets up the spring and keeps off the shoulder, and the spring is located the spring chamber, and spring one end pushes up on the cutter body inner wall on spring chamber top, and the other end pushes up on the spring keeps off the shoulder, and the baffle restriction spring keeps off the shoulder.

3. The resilient axial relief milling cutter according to claim 1 or 2, wherein: the bottom of the telescopic rod is a flat head, the positioning bolt extends into the cutter body through a bolt hole in the cutter body and contacts with the flat head, and a locking nut is screwed on the positioning bolt.

4. The resilient axial relief mill according to claim 3, wherein: the friction force of the positioning bolt on the flat head is between 5 and 10N, and the elastic force of the spring is between 10 and 20N.

5. The resilient axial relief mill according to claim 4, wherein: when the axial feeding machining is carried out, normal machining is carried out when the axial force is not more than 30N; when the axial force is greater than 30N, the spring is compressed to generate a cutter back, so that the bottom layer of the part is protected from being machined.