CN214443363U

CN214443363U - T-shaped milling cutter suitable for high-speed machining

Info

Publication number: CN214443363U
Application number: CN202023124266.7U
Authority: CN
Inventors: 龚国锋; 张伟彪; 樊剑峰; 顾羽
Original assignee: Shanghai Huasheng Precision Machinery Technology Co ltd
Current assignee: Shanghai Huasheng Precision Machinery Technology Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-10-22
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses a T type milling cutter suitable for high-speed processing relates to the cutter for the lathe, mainly includes cutting part, stalk portion and sets up the neck between cutting part and stalk portion, the cutting part includes cutter body and sword tooth, the cutter body with the coaxial setting of neck, the sword tooth sets up in the week side of cutter body, the sword tooth has all been seted up on the both sides of cutter body axis direction and has been kept away from the face of empting, keep away one side that the face of empting deviates from sword tooth sword blade front end on being located the sword tooth, the face of keeping away with the terminal surface contained angle alpha of cutter body axial side direction is 2-5. The utility model has the advantages of simple structure helps promoting the rigidity of sword tooth to and promote the stability of milling cutter in the cutting operation.

Description

T-shaped milling cutter suitable for high-speed machining

Technical Field

The utility model relates to a cutter for the lathe especially relates to a T type milling cutter suitable for high-speed processing.

Background

A milling cutter is a rotating tool for milling machining having one or more cutter teeth. When in work, each cutter tooth cuts off the allowance of the workpiece in sequence and intermittently. The milling cutter is mainly used for processing planes, steps, grooves, forming surfaces, cutting workpieces and the like on a milling machine. Milling cutters include T-type milling cutters, which are also known as T-slot cutters. T-shaped milling cutters are used to machine T-shaped grooves in various machine tables or other components.

When the milling cutter on the market is used for processing an object, a worker firstly installs the milling cutter on a machine tool and then enters the T-shaped groove from the direction parallel to the groove wall of the T-shaped groove to carry out cutting processing operation.

In this case, in the milling cutter, the cutting force applied to the milling cutter face is large during the high-speed rotation operation, and the milling cutter face is easily worn. Meanwhile, in high-speed cutting operation, the milling cutter is subjected to larger vibration force, so that the stability of the milling cutter in the cutting operation is reduced, the machining precision is easily influenced, and a part to be improved exists.

SUMMERY OF THE UTILITY MODEL

To the technical problem, the utility model aims at providing a T type milling cutter suitable for high-speed processing, with the help of setting up on the side of sword tooth and keeping away the face of vacancy, the cutting force that the dispersion sword tooth received to reduce the wearing and tearing that the sword tooth surface received, the rigidity of sword tooth has obtained the improvement, and when the cutting force that receives simultaneously was less, milling cutter's vibration range reduced, and milling cutter's stability in the cutting operation is higher.

The above technical purpose of the present invention can be achieved by the following technical solutions: the knife comprises a cutting part, a handle part and a neck part arranged between the cutting part and the handle part, wherein the cutting part comprises a knife body and knife teeth, the knife body and the neck part are coaxially arranged, the knife teeth are arranged on the peripheral side of the knife body, the knife teeth are arranged on two sides of the axis direction of the knife body and are provided with clearance surfaces, the clearance surfaces are arranged on one side of the knife teeth, which deviates from the front ends of knife teeth, and the clearance surfaces and the end surface included angle of the side direction of the axis of the knife body are 2-5 degrees.

By adopting the technical scheme, when the milling cutter rotates at a high speed, the clearance avoiding surface arranged on the cutter tooth is beneficial to dispersing the cutting force applied to the cutter tooth, and the abrasion applied to the surface of the cutter tooth is reduced, so that the rigidity of the cutter tooth is improved; when the cutting force applied to the cutter teeth is reduced, the vibration amplitude of the milling cutter is small, so that the stability of the milling cutter in the cutting operation is improved, and the machining precision is improved.

The utility model discloses further set up to: and an inclined conical surface is formed on one side of the handle part close to the neck part.

By adopting the technical scheme, the milling cutter enters the T-shaped groove from the direction parallel to the groove wall of the T-shaped groove to perform cutting operation, and the oblique conical surface is beneficial to preventing the handle part from impacting the surface of an object in which the T-shaped groove is positioned, so that the abrasion to the milling cutter is reduced.

The utility model discloses further set up to: the cutter teeth are uniformly arranged on the cutter body around the periphery of the cutter body at intervals.

By adopting the technical scheme, the cutter body is provided with the six cutter teeth, so that the precision of the cutting operation of the milling cutter is ensured.

The utility model discloses further set up to: the cutter body is provided with chip grooves, and the groove roots of the two adjacent chip grooves are arranged at intervals of 55 degrees, 60 degrees and 65 degrees around the axis of the blade part.

Through adopting above-mentioned technical scheme, carry out cutting process to T type groove with the help of asymmetric design's cutting part, help dispersing milling cutter to receive the cutting force for milling cutter's vibration range reduces, thereby promotes the stability to T type groove processing operation.

The utility model discloses further set up to: the radial relief angle of the cutter teeth includes a first relief angle and a second relief angle, the first relief angle being 10-14 °, and the second relief angle being 14-18 °.

Through adopting above-mentioned technical scheme, when milling cutter carries out the cutting process operation to T type groove, first radial relief angle and the radial relief angle of second are compared in setting up single relief angle, help reducing on the sword tooth and deviate from the side of cutting the mouth and rub between the T type groove face to reduce the wearing and tearing to milling cutter sword tooth.

The utility model discloses further set up to: the radial rake angle of the cutter teeth is 8-12 degrees.

By adopting the technical scheme, the radial rake angle is set between 8 degrees and 12 degrees, so that the sharpness of the cutter teeth is improved, and the improvement of the precision of the cutting operation of the milling cutter is facilitated.

The utility model discloses further set up to: the included angle of the groove wall of the chip groove is 65-80 degrees.

By adopting the technical scheme, the included angle between the chip grooves is set to be 65-80 degrees, which is beneficial to ensuring that metal chips generated in the cutting operation can be smoothly discharged.

The utility model discloses further set up to: the helix angle of the cutter teeth is 5-9 degrees.

By adopting the technical scheme, compared with a straight-edge milling cutter, the helical angle of the cutter teeth of the milling cutter is set between 5 degrees and 9 degrees, and the cutter teeth are gradually cut into and cut out along the cutting edge, so that the stability of the cutting process is improved.

Compared with the prior art, the beneficial effects of the utility model are as follows:

(1) the clearance avoiding surface is arranged on the side surface of the cutter tooth, so that the cutting force borne by the cutter tooth is dispersed, the abrasion borne by the surface of the cutter tooth is reduced, the rigidity of the cutter tooth is improved, and when the cutting force borne by the cutter tooth is small, the vibration amplitude of the milling cutter is reduced, and the stability of the milling cutter in the cutting operation is higher;

(2) the number of the cutter teeth on the cutter body is set to six, and the cutter teeth are set to be asymmetric, so that the accuracy of cutting operation and the rigidity of the cutter teeth are guaranteed.

Drawings

FIG. 1 is a schematic axial view of the overall structure of a T-shaped milling cutter suitable for high-speed machining according to the present embodiment;

FIG. 2 is a front view of the present embodiment, which primarily embodies a T-mill cutter adapted for high speed machining;

fig. 3 is a sectional view mainly showing the blade structure in this embodiment.

Reference numerals: 1. a blade part; 11. a cutter body; 12. cutter teeth; 2. a handle; 3. a neck portion; 4. an air avoidance surface; 5. an oblique conical surface; 6. a chip groove.

Detailed Description

The present invention will be described in further detail with reference to the following examples and drawings, but the embodiments of the present invention are not limited thereto.

Referring to fig. 1 and 2, a T-shaped milling cutter suitable for high-speed machining includes a blade 1, a shank 2, and a neck 3 disposed between the blade 1 and the shank 2, the blade 1 being located on a side of the neck 3 away from the shank 2. The blade part 1 comprises a cutter body 11 and cutter teeth 12, the cutter body 11 and a neck part 3 are coaxially arranged, six cutter teeth 12 are uniformly arranged around the periphery of the cutter body 11 at intervals, each cutter tooth 12 is provided with a clearance surface 4 on two sides of the cutter body 11 in the axial direction, and the included angle between the clearance surface 4 and the end surface of the cutter body 11 in the axial direction is 2-5 degrees, preferably 3 degrees.

In application, a worker installs the milling cutter on a machine tool, and the machine tool drives the milling cutter to enter the T-shaped groove from the direction parallel to the groove wall of the T-shaped groove to be machined to carry out cutting machining operation. At this time, the relief surface 4 provided on the cutter tooth 12 disperses the cutting force received by the cutter tooth 12.

Referring to fig. 2 and 3, the side of the handle 2 adjacent to the neck 3 is formed with a tapered surface 5. The radial relief angle of the cutter tooth 12 includes a first relief angle of 10 ° to 14 °, preferably β 12 °, and a second relief angle of 14 ° to 18 °, preferably 18 °. The radial rake angle of the cutter teeth 12 is 8-12, preferably 10. The helix angle of the cutter teeth 12 is 7 °. The cutter body 11 is provided with chip grooves 6, and the groove roots of adjacent chip grooves 6 are arranged at intervals of 55 degrees, 60 degrees and 65 degrees. The angle between the flute walls of the flutes 6 is set between 65 ° and 80 °, preferably 70 °.

The implementation principle of the above embodiment is as follows: in application, a worker installs the milling cutter on a machine tool, the machine tool drives the milling cutter to enter the T-shaped groove from the direction parallel to the groove wall of the T-shaped groove to be machined, and the milling cutter performs cutting machining operation on the T-shaped groove through high-speed rotation.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a T type milling cutter suitable for high-speed processing, mainly includes cutting part (1), stalk portion (2) and sets up neck (3) between cutting part (1) and stalk portion (2), its characterized in that, cutting part (1) includes cutter body (11) and sword tooth (12), cutter body (11) with neck (3) coaxial setting, sword tooth (12) set up on the week side of cutter body (11), sword tooth (12) have all seted up on the both sides of cutter body (11) axis direction and have kept away from sky face (4), keep away one side that face (4) are located sword tooth (12) and deviate from sword tooth (12) sword front end, keep away the terminal surface contained angle of face (4) and cutter body (11) axial side direction and be 2-5.

2. The T-shaped milling cutter for high-speed machining according to claim 1, characterized in that the shank (2) is formed with a beveled surface (5) on the side adjacent to the neck (3).

3. The T-shaped milling cutter adapted for high speed machining according to claim 1, wherein six cutter teeth (12) are provided on the cutter body (11) at regular intervals around the circumference of the cutter body (11).

4. The T-shaped milling cutter suitable for high-speed machining according to claim 1, wherein the cutter body (11) is provided with chip grooves (6), and the groove roots of two adjacent chip grooves (6) are arranged at intervals of 55 degrees, 60 degrees and 65 degrees around the axis of the blade (1).

5. The T-shaped milling cutter suitable for high speed machining according to claim 1, wherein the radial clearance angle of the cutter tooth (12) comprises a first clearance angle of 10 ° -14 ° and a second clearance angle of 14 ° -18 °.

6. The T-shaped milling cutter adapted for high speed machining according to claim 1, characterized in that the radial rake angle of the cutter teeth (12) is 8 ° -12 °.

7. T-shaped milling cutter adapted for high-speed machining according to claim 4, characterized in that the included angle between the flute walls of the flutes (6) is 65-80 °.

8. The T-shaped milling cutter adapted for high speed machining according to claim 1, characterized in that the helix angle of the cutter teeth (12) is 5 ° -9 °.