CN215880051U

CN215880051U - Star cover hard milling cutter head

Info

Publication number: CN215880051U
Application number: CN202121857690.4U
Authority: CN
Inventors: 汤锋; 郑均
Original assignee: Hangzhou Xinsheng Technology Co ltd
Current assignee: Hangzhou Xinsheng Technology Co ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-02-22
Anticipated expiration: 2032-01-04

Abstract

The utility model relates to the technical field of star-shaped sleeve processing equipment, in particular to a star-shaped sleeve hard milling cutter head. The utility model provides a star cover milling cutter head that firmly, includes the handle of a knife, the terminal lateral wall of handle of a knife has two the same combination formula tool bits, two through hexagon screw symmetry fixed mounting combination formula tool bit overlap joint each other, and two the orthographic projection of the shape that combination formula tool bit made up on the horizontal plane is the profile of tooth structure. According to the combined type tool bit, the two combined type tool bits are arranged on the tool handle through a splicing type scheme, when the combined type tool bits are worn, the tool bits can be directly replaced without being integrally replaced, and the use cost is reduced; according to the milling cutter, the cutter head structure of the milling cutter is designed in a modularized mode, the milling cutter can be machined according to corresponding structures during production, and finally any combination is carried out, so that the production cost can be reduced, and meanwhile, diversified combinations are achieved in the later use process.

Description

Star cover hard milling cutter head

Technical Field

The utility model relates to the technical field of star-shaped sleeve processing equipment, in particular to a star-shaped sleeve hard milling cutter head.

Background

The constant velocity universal joint is a device which connects two shafts with an included angle or a changed mutual position between the shafts and enables the two shafts to transmit power at the same angular velocity, and can overcome the problem of non-constant velocity of the common cross shaft type universal joint. The existing widely adopted constant velocity universal joint mainly comprises a ball-fork universal joint and a ball-cage universal joint, a star-shaped sleeve is used as a necessary part in the ball-cage universal joint, the precision and the strength of the star-shaped sleeve have strict technical requirements, and a ball-end milling cutter is usually used for processing the star-shaped sleeve when the star-shaped sleeve is produced;

the existing milling cutter head for machining the star-shaped sleeve is usually integrally formed and cannot be detached and replaced, and when the cutter head is worn and needs to be replaced, the cutter head needs to be integrally replaced, so that the use and maintenance cost is increased.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a hard milling head for a inner race to solve the problems set forth above in the background art. In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a star cover milling cutter head that firmly, includes the handle of a knife, the terminal lateral wall of handle of a knife has two the same combination formula tool bits, two through hexagon screw symmetry fixed mounting combination formula tool bit overlap joint each other, and two the orthographic projection of the shape that combination formula tool bit made up on the horizontal plane is the profile of tooth structure.

Preferably, two identical mounting grooves are symmetrically formed in two sides of the surface of the cutter handle, and threaded holes are formed in the side walls of the two mounting grooves.

Preferably, the tail end of the hexagonal screw penetrates through the combined type tool bit and is sleeved in the threaded hole in a threaded manner.

Preferably, the combined type tool bit consists of a tool bit seat and a plurality of cutting edges, and the plurality of cutting edges are uniformly arranged on the surface of the tool bit seat.

Preferably, the tops of a plurality of the cutting edges are arranged at the top of the tool bit seat and converged at one point.

Compared with the prior art, the utility model has the beneficial effects that:

according to the combined type tool bit, the two combined type tool bits are arranged on the tool handle through a splicing type scheme, when the combined type tool bits are worn, the tool bits can be directly replaced without being integrally replaced, and the use cost is reduced.

According to the milling cutter, the cutter head structure of the milling cutter is designed in a modularized mode, the milling cutter can be machined according to corresponding structures during production, and finally any combination is carried out, so that the production cost can be reduced, and meanwhile, diversified combinations are achieved in the later use process.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top cross-sectional view of FIG. 1;

FIG. 3 is a perspective view of the modular cutting head of FIG. 1;

FIG. 4 is a schematic view of the shank configuration of FIG. 1;

fig. 5 is a side view of the tool shank of fig. 1.

In the figure: 1. a knife handle; 101. mounting grooves; 102. a threaded hole; 2. a hex screw; 3. a combined type cutter head; 301. a tool bit seat; 302. a blade; 302a, the blade wall.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 5, a star-shaped sleeve hard milling cutter head includes a cutter handle 1, two identical combined cutter heads 3 are symmetrically and fixedly mounted on a side wall of a tail end of the cutter handle 1 through hexagon screws 2, the two combined cutter heads 3 are mutually overlapped, and an orthographic projection of a shape formed by combining the two combined cutter heads 3 on a horizontal plane is a tooth-shaped structure.

In this embodiment, as shown in fig. 4 and 5, two identical mounting grooves 101 are symmetrically formed on two sides of the surface of the tool shank 1, and threaded holes 102 are formed in the side walls of the two mounting grooves 101.

In this embodiment, as shown in fig. 1, the end of the hexagon screw 2 penetrates the modular head 3 and is screwed into the threaded hole 102.

In this embodiment, as shown in fig. 3, the combined type tool bit 3 is composed of a tool bit holder 301 and a plurality of tool bits 302, the number of the tool bits 302 is several, and the plurality of the tool bits 302 are uniformly arranged on the surface of the tool bit holder 301.

In this embodiment, as shown in fig. 3, the tops of the plurality of blades 302 are disposed on the top of the blade holder 301 and converge at a point.

The use method and the advantages of the utility model are as follows: the milling cutter is installed on a machine tool according to a conventional installation mode and then used, when the milling cutter is found to be worn in a period of time, the combined type cutter head 3 can be directly taken down by disassembling the hexagon screw 2 under the condition of not disassembling the milling cutter, and then the brand new combined type cutter head 3 can be replaced, if the cutting edges 302 with different structures need to be replaced, the replacement can be carried out in the same way;

regarding the tool shank 1, please refer to fig. 1, fig. 2, fig. 4 and fig. 5, the tool shank 1 is a conventional tool shank of a milling cutter, and is different from the conventional tool shank in that mounting grooves 101 are formed in both sides of the tail end of the tool shank 1, and the depth of the mounting groove 101 is the same as the thickness of the tool bit holder 301, so that the outer side of the tool bit holder 301 and the surface of the tool shank 1 at the position where the mounting groove 101 is formed can be ensured to be in the same plane, thereby facilitating the processing operation;

as for the mounting groove 101, please refer to fig. 5, the shape of the mounting groove 101 is matched with that of the tool bit holder 301, and there is no specific shape;

referring to fig. 4, the threaded hole 102 may be a conventional threaded hole, and may be matched with the hexagon screw 2;

as for the hexagon screw 2, please refer to fig. 1, the hexagon screw 2 is an inner hexagon screw, and the size of the inner hexagon screw matches with the size of the bit holder 301;

referring to fig. 1, 2 and 3, the top ends of the two combined type cutter heads 3 are overlapped, and the tail ends of the two combined type cutter heads 3 can form a spherical structure after rotating, so that the combined type cutter heads 3 are convenient to process;

referring to fig. 3, the tool tip holder 301 is provided with a cutting edge 302, and in order to prevent insufficient rigidity, the tool tip holder 301 and the cutting edge 302 are designed as an integrated mechanism.

Referring to fig. 3, the blade 302 is in a conventional spiral shape (not shown) or a straight arrangement, and the included angle between the wall 302a of the blade 302 and the blade holder 301 is between 90 degrees and 110 degrees.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a star cover hard milling cutter head, includes handle of a knife (1), its characterized in that: the utility model discloses a combined type screwdriver, including handle of a knife (1), handle of a knife (1) end lateral wall has two the same combination formula tool bits (3) through hexagon screw (2) symmetry fixed mounting, two combination formula tool bit (3) overlap joint each other, and two the orthographic projection of shape on the horizontal plane that combination formula tool bit (3) are made up is the profile of tooth structure.

2. A star-sleeve hard milling head according to claim 1, wherein: two identical mounting grooves (101) are symmetrically formed in two sides of the surface of the cutter handle (1), and threaded holes (102) are formed in the side walls of the two mounting grooves (101).

3. A star-sleeve hard milling head according to claim 2, wherein: the tail end of the hexagonal screw (2) penetrates through the combined tool bit (3) and is sleeved in the threaded hole (102) in a threaded manner.

4. A star-sleeve hard milling head according to claim 1, wherein: the combined type tool bit (3) is composed of a tool bit seat (301) and a plurality of cutting edges (302), wherein the number of the cutting edges (302) is a plurality, and the cutting edges (302) are uniformly arranged on the surface of the tool bit seat (301).

5. The inner star hard milling head as set forth in claim 4, wherein: the tops of a plurality of cutting edges (302) are arranged at the top of the tool bit seat (301) and converged at one point.