CN213469723U

CN213469723U - Primary and secondary cutter

Info

Publication number: CN213469723U
Application number: CN202022089774.XU
Authority: CN
Inventors: 张静安; 董海军; 罗国华; 祁水清
Original assignee: Ningbo Longyuan Precision Machinery Co ltd
Current assignee: Ningbo Longyuan Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-18
Anticipated expiration: 2030-09-22

Abstract

The utility model relates to a primary and secondary cutter, including female sword handle of a knife, female sword tool bit, son sword handle of a knife and son sword tool bit, son sword tool bit one end install son sword handle of a knife, set groove has been seted up along the axial on the lateral wall of this son sword handle of a knife one end, female sword tool bit one end install female sword handle of a knife, this female sword tool bit other end has evenly arranged a plurality of around the circumference and has milled the cutting edge, the terminal surface middle part of the female sword tool bit other end be provided with the round hole, son sword tool bit one end pack into in the round hole, the outside of female sword tool bit be provided with two set screw side by side, this set screw one end stretches into set groove in, two set screw are located set groove's both ends respectively. The utility model discloses can once only process all processes, improve work efficiency greatly.

Description

Primary and secondary cutter

Technical Field

The utility model relates to an automobile parts processing technology field especially relates to a primary and secondary cutter.

Background

When an automobile part is machined, a stepped hole is sometimes machined in a workpiece, and the inner wall of the stepped hole needs to be subjected to surface milling treatment. The general operation is to prepare two tools, one for machining the inner wall of a large-point hole and the other for machining the inner wall of a small-point hole. If one cutter can be used for machining, the cost of the cutter and the cutter changing time are saved inevitably.

Disclosure of Invention

The utility model aims to solve the technical problem that a primary and secondary cutter is provided, all processes of disposable processing have improved work efficiency greatly.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a primary and secondary cutter, includes mother sword handle of a knife, mother sword tool bit, son sword handle of a knife and son sword tool bit, son sword tool bit one end install son sword handle of a knife, positioning groove has been seted up along the axial on the lateral wall of this son sword handle of a knife one end, mother sword tool bit one end install mother sword handle of a knife, this mother sword tool bit other end has evenly arranged a plurality of around the circumference and has milled the cutting edge, the terminal surface middle part of the mother sword tool bit other end be provided with the round hole, son sword handle of a knife one end pack into in the round hole, the outside of mother sword tool bit be provided with two set screw side by side, this set screw one end stretches into positioning groove, two set screw are located positioning groove's both.

As right technical scheme a supplement, the lateral wall of the female sword tool bit other end on lie in and all be equipped with a chip groove between per two adjacent milling cutter sword.

As right technical scheme a supplement, sub-sword tool bit and sub-sword handle of a knife integrated into one piece.

As right technical scheme a supplement, female sword handle of a knife and female sword tool bit integrated into one piece.

As a supplement to the technical scheme of the utility model, the sub-knife head be the heliciform.

Has the advantages that: the utility model relates to a primary and secondary cutter, a secondary tool comprises a secondary cutter handle and a secondary cutter head, the secondary cutter head is used for milling the inner hole with small aperture, the primary cutter comprises a primary cutter handle and a primary cutter head, and the primary cutter head is used for milling the inner hole with large aperture; the subsidiary prop is convenient to replace, and can be taken out only by unscrewing the two positioning screws; the auxiliary knife handle is prevented from rotating through the matching of the positioning screw and the positioning groove. The utility model discloses a cutter can all processes of disposable processing, has improved work efficiency greatly.

Drawings

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

FIG. 2 is a schematic structural view of the subsidiary prop of the present invention;

fig. 3 is a schematic structural diagram of the master prop of the present invention.

The figure is as follows: 1. the milling cutter comprises a main cutter handle, 2 a main cutter head, 3 a milling cutter edge, 4 a chip groove, 5 a positioning screw, 6 a sub cutter handle, 7 a sub cutter head, 8 a positioning groove, 9 and a circular hole.

Detailed Description

The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

The embodiment of the utility model relates to a primary and secondary cutter, as shown in figures 1-3, comprising a primary cutter handle 1, a primary cutter head 2, a secondary cutter handle 6 and a secondary cutter head 7, wherein the secondary tool comprises the secondary cutter handle 6 and the secondary cutter head 7, the secondary cutter head 7 is used for milling small-aperture inner holes, the primary cutter comprises the primary cutter handle 1 and the primary cutter head 2, the primary cutter head 2 is used for milling large-aperture inner holes, the secondary cutter handle 6 is installed at one end of the secondary cutter head 7, a positioning groove 8 is axially arranged on the side wall at one end of the secondary cutter handle 6, the primary cutter handle 1 is installed at one end of the primary cutter head 2, a plurality of milling cutters 3 are evenly arranged at the other end of the primary cutter head 2 around the circumference, a circular hole 9 is arranged in the middle part of the end face of the other end of the primary cutter head 2, one end of the secondary cutter 6 is arranged in the circular hole 9, two positioning screws 5 are arranged at the outer side by side of the, one end of the positioning screw 5 extends into the positioning groove 8, the two positioning screws 5 are respectively positioned at two ends of the positioning groove 8, and the positioning screw 5 is matched with the positioning groove 8 to prevent the rotation of the sub-knife handle 6. The subsidiary prop can be changed into different models as long as the size of the subsidiary knife handle 6 of the subsidiary prop is kept unchanged. The subsidiary prop is convenient to replace, and the subsidiary prop can be taken out only by unscrewing the two positioning screws 5.

The side wall of the other end of the female cutter head 2 is provided with a chip groove 4 between every two adjacent milling cutter edges 3, and the chip groove 4 can discharge waste materials generated by the milling cutter edges 3.

The sub-knife head 7 and the sub-knife handle 6 are integrally formed, and the connection strength and the stability between the sub-knife head 7 and the sub-knife handle 6 can be effectively guaranteed through the integral forming.

Female sword handle of a knife 1 and female sword tool bit 2 integrated into one piece, joint strength and stability between female sword handle of a knife 1 and the female sword tool bit 2 can effectively be guaranteed to integrated into one piece.

The sub-knife head 7 is spiral.

The inner wall of the round hole 9 can be provided with internal threads, and the outer wall of the sub-knife handle 6 is provided with external threads, so that the sub-knife handle 6 is conveniently connected with the round hole 9.

Claims

1. A primary and secondary cutter is characterized in that: comprises a main knife handle (1), a main knife head (2), a sub knife handle (6) and a sub knife head (7), wherein the sub knife handle (6) is arranged at one end of the sub knife head (7), a positioning groove (8) is axially arranged on the side wall of one end of the sub-knife handle (6), a main knife handle (1) is arranged at one end of the main knife head (2), the other end of the main cutter head (2) is uniformly provided with a plurality of milling cutter edges (3) around the circumference, the middle part of the end surface of the other end of the female cutter head (2) is provided with a round hole (9), one end of the sub-knife handle (6) is arranged in the round hole (9), two positioning screws (5) are arranged on the outer side of the main knife head (2) side by side, one end of each positioning screw (5) extends into the corresponding positioning groove (8), and the two positioning screws (5) are respectively positioned at two ends of the corresponding positioning groove (8).

2. The primary and secondary cutter of claim 1, wherein: the side wall of the other end of the female cutter head (2) is provided with a chip groove (4) between every two adjacent milling cutting edges (3).

3. The primary and secondary cutter of claim 1, wherein: the sub-knife head (7) and the sub-knife handle (6) are integrally formed.

4. The primary and secondary cutter of claim 1, wherein: the female knife handle (1) and the female knife head (2) are integrally formed.

5. The primary and secondary cutter of claim 1, wherein: the sub-knife head (7) is spiral.