CN212976867U

CN212976867U - Hard alloy composite T-shaped cutter

Info

Publication number: CN212976867U
Application number: CN202021158784.8U
Authority: CN
Inventors: 任博远; 王耀江; 王必永; 纪迪; 魏佳; 于忠光
Original assignee: Guohong Tools System Wuxi Co ltd
Current assignee: Guohong Tools System Wuxi Co ltd
Priority date: 2020-03-03
Filing date: 2020-06-19
Publication date: 2021-04-16
Anticipated expiration: 2030-06-19

Abstract

The utility model discloses a compound T type sword of carbide relates to cutting means technical field, and compound T type sword of carbide includes handle of a knife, transition platform, coupling portion and tool bit, is equipped with five cutting edges on the tool bit, and wherein every cutting edge all includes end sword, all sword and rear side sword, is equipped with the facet between end sword and the all sword, and the width of facet is 0.02mm, and the relief angle of all sword is 0. Through the setting of five cutting edges, the cutting mode of traditional four sword edges has been abandoned, make the cutting action more stable more gentle and agreeable, vibration when effectively having reduced the cutter and using, the smooth finish of cell-phone shell processing has been guaranteed, thereby the leakproofness of cell-phone shell has been promoted, setting through the facet, can protect the knife tip in the cutting, the safe operation of tool bit has been guaranteed, the service life of cutter has been improved, the relief angle through week sword sets up to 0, make the cutter adopt extruded form to cut, also can improve the smooth finish on product surface.

Description

Hard alloy composite T-shaped cutter

Technical Field

The utility model relates to a cutting means's technical field especially relates to compound T type sword of carbide.

Background

The preparation of some cell-phone shells in the existing market requires that the cell-phone shell has higher leakproofness, therefore need process the surface finish of cell-phone shell higher when processing cell-phone shell, but present milling cutter vibration is great, can not reach higher finish when leading to processing, simultaneously because the milling cutter size of processing cell-phone shell is all smaller, the edge of a knife and then can be littleer, such edge of a knife very easily takes place to crack.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the technical scheme of the utility model provides a compound T type sword of carbide. The technical scheme is as follows:

the utility model provides a compound T type sword of carbide, including the handle of a knife, the transition platform, joint portion and tool bit, handle of a knife one end is connected with transition platform one end, the other end of transition platform is connected with the one end of joint portion, the other end of joint portion is connected with the one end of tool bit, be equipped with five cutting edges on the tool bit, wherein every cutting edge all includes the end sword, all sword and rear side sword, the end sword is seted up at the other end of tool bit, all sword is seted up on the side of tool bit, rear side sword is seted up and is close to joint portion at the tool bit afterbody, be equipped with the facet between end sword and the all sword, the width of facet is 0.02mm, the relief angle of all sword is 0.

Through the setting of five cutting edges, the cutting mode of traditional four sword edges has been abandoned, make the cutting action more stable more gentle and agreeable, vibration when effectively having reduced the cutter and using, the smooth finish of cell-phone shell processing has been guaranteed, thereby the leakproofness of cell-phone shell has been promoted, and then product quality and yields have been promoted, setting through the facet, can protect the knife tip in the cutting, the safe operation of tool bit has been guaranteed, the service life of cutter is prolonged, the relief angle through week sword sets up to 0, make the cutter adopt extruded form to cut, and then also can improve the smooth finish on product surface.

In particular, the waist line of the transition table makes an angle α with the horizontal, α being 15 °.

The transition table is provided with an angle of 15 degrees, so that stress concentration can be reduced, and the rigidity of the cutter is improved.

Particularly, the cutting edges are uniformly distributed on the cutter head, the length of the cutting edges is 3.3mm, the maximum diameter of the cutting edges is 9.8mm, and the core thickness of the cutter head is 5.5 mm.

In particular, the two relief angles of the trailing edge are γ and δ, respectively, γ being 8 ° and δ being 20 °.

In particular, the other end of the shank is chamfered.

In particular, the hard alloy composite T-shaped cutter is made of hard alloy through integral molding.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the invention, in which:

fig. 1 is a schematic perspective view of a hard alloy composite T-shaped knife according to an embodiment of the present invention;

FIG. 2 is an enlarged view at B of FIG. 1;

fig. 3 is a side view of the cemented carbide composite T-shaped knife of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 2 at A;

FIG. 5 is a schematic view of the front end face of the tool tip;

FIG. 6 is a cross-sectional view of the CC of FIG. 5.

Reference numerals: 1 knife handle, 2 transition table, 3 connecting part, 4 knife heads, 5 small planes, 41 end edges, 42 peripheral edges and 43 rear side edges

Detailed Description

The following disclosure provides many different embodiments or examples for implementing different features of the invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

In order to guarantee the security of the processing smooth finish of cutter simultaneously in fact, the utility model provides a compound T type sword of carbide, technical scheme is as follows:

the present invention will be described in further detail with reference to fig. 1 to 6.

As shown in fig. 1 to 6, the utility model provides a compound T type sword of carbide, including handle of a knife 1, transition platform 2, junction 3 and tool bit 4, handle of a knife 1 one end is connected with 2 one end of transition platform, the other end of transition platform 2 is connected with the one end of junction 3, the other end of junction 3 is connected with the one end of tool bit 4, be equipped with five cutting edges on the tool bit 4, wherein every cutting edge all includes end sword 41, all sword 42 and rear side sword 43, end sword 41 sets up at the other end of tool bit 4, all sword 42 sets up on the side of tool bit 4, rear side sword 43 sets up at the tool bit 4 afterbody and is close to junction 3, be equipped with facet 5 between end sword 41 and the all sword 42, the width of facet 5 is 0.02mm, the relief angle of all sword 42 is 0.

Through the setting of five cutting edges, the cutting mode of traditional four sword edges has been abandoned, make the cutting action more stable more gentle and agreeable, vibration when effectively having reduced the cutter and using, the smooth finish of cell-phone shell processing has been guaranteed, thereby the leakproofness of cell-phone shell has been promoted, and then product quality and yields have been promoted, setting through facet 5, can protect the knife tip in the cutting, the safe operation of tool bit 4 has been guaranteed, the service life of cutter has been improved, the relief angle through week sword 42 sets up to 0, make the cutter adopt extruded form to cut, and then also can improve the smooth finish on product surface.

In particular, the waist line of the transition table 2 forms an angle α with the horizontal, α being 15 °.

The transition table 2 is provided with an angle of 15 degrees, so that stress concentration can be reduced, and the rigidity of the cutter is improved.

In particular, the blades are uniformly distributed on the cutter head 4, the length of the blades is 3.3mm, the maximum diameter of the blades is 9.8mm, and the core thickness of the cutter head 4 is 5.5 mm.

In particular, the two relief angles of the trailing edge 43 are γ and δ, respectively, γ being 8 ° and δ being 20 °.

In particular, the other end of the shank 1 is chamfered.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the description and in the claims does not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. Also, the terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The "one end" and "the other end" merely indicate relative positional relationships, and when the absolute positional relationship of the object to be described is changed, the corresponding positional relationship is also changed accordingly. Further, the term "at least one" as used herein includes one, two or more.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. Hard alloy composite T-shaped cutter, including handle of a knife, transition platform, joint portion and tool bit, handle of a knife one end with transition platform one end is connected, the other end of transition platform with the one end of joint portion is connected, the other end of joint portion with the one end of tool bit is connected, its characterized in that, be equipped with five cutting edges on the tool bit, wherein every the cutting edge all includes end sword, week sword and rear side sword, the end sword is seted up the other end of tool bit, week sword is seted up on the side of tool bit, rear side sword is seted up the tool bit afterbody is close to the joint portion, the end sword with be equipped with the facet between the week sword, the width of facet is 0.02mm, the relief angle of week sword is 0.

2. The carbide composite T-blade as in claim 1, wherein the transition table has a waistline that is at an angle α of 15 ° to the horizontal.

3. The carbide composite T-blade as in claim 1, wherein said cutting edges are uniformly distributed on said blade tip, said cutting edges have a length of 3.3mm, said cutting edges have a maximum diameter of 9.8mm, and said blade tip has a core thickness of 5.5 mm.

4. The cemented carbide composite T-shaped cutter as claimed in claim 1, wherein the two relief angles of the trailing edge are γ and δ, respectively, γ being 8 ° and δ being 20 °.

5. The cemented carbide composite T-shaped cutter as claimed in claim 1, wherein the other end of the shank is chamfered.

6. The composite carbide T-blade of claim 1, wherein the composite carbide T-blade is formed of cemented carbide in one piece.