CN210451028U

CN210451028U - Composite cutter

Info

Publication number: CN210451028U
Application number: CN201921320176.XU
Authority: CN
Inventors: 王友群; 阮捍; 刘金生; 王浩龙
Original assignee: Guangdong Daofu Precision Technology Co ltd
Current assignee: Guangdong Daofu Precision Technology Co ltd
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2020-05-05
Anticipated expiration: 2029-08-14

Abstract

The utility model relates to the field of cutters, in particular to a composite cutter, wherein a boring cutter head convexly extends at the axis of the front end of the composite cutter, and a milling cutter head convexly extends at the non-axis of the front end; the cutting part of the compound cutter is provided with a boring cutter head and a milling cutter head, the boring cutter head is used for machining a center hole of a product, the two milling cutter heads are used for forming the side edge of the product, and a cutter is multipurpose.

Description

Composite cutter

Technical Field

The utility model relates to a cutter field, concretely relates to compound tool.

Background

The term tool is generally understood to mean a metal cutting tool, since the tools used in machine manufacturing are basically used for cutting metal materials. In the process of machining and producing the workpiece, the working procedures such as drilling, chamfering and the like are required to be carried out by using a cutter, but the working efficiency is quite low because each working procedure needs a special cutter to carry out independent machining.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the not enough among the prior art, and provide combination cutting tool, this combination cutting tool can the quire multi-purpose, and lifting efficiency, reduce cost.

The purpose of the utility model is realized through the following technical scheme:

and providing a composite cutter, wherein a boring cutter head protrudes and extends from the axis of the front end of the composite cutter, and a milling cutter head protrudes and extends from the non-axis of the front end.

The two milling cutter heads are respectively positioned on two sides of the boring cutter head, and the two milling cutter heads are circumferentially arranged by taking the axis of the composite cutter as the circle center.

The two milling cutter heads are symmetrically arranged by taking the axis of the compound cutter as a center, and the directions of cutting edges of the two milling cutter heads are opposite.

Wherein the cutting diameter of the boring bit is smaller than the cutting diameter of the milling bit.

The milling cutter comprises a boring cutter head, a milling cutter head and two chip grooves, wherein the two chip grooves are further included, one chip groove is located between the boring cutter head and one milling cutter head, and the other chip groove is located between the boring cutter head and the other milling cutter head.

The utility model has the advantages that: the utility model discloses a compound tool, compound tool's cutting part include the bore hole tool bit and mill the tool bit, and the bore hole tool bit is used for processing the centre bore of product, and when compound tool cut, the side that the product can be cut in the rotation of mill tool bit, and the bore hole tool bit mutually supports with the mill tool bit and makes the cutter of this embodiment can realize the quire multi-purpose, also can save the process time of product simultaneously, practices thrift the cutter cost, has guaranteed product size's stability.

Drawings

The present invention is further explained by using the drawings, but the embodiments in the drawings do not constitute any limitation to the present invention, and for those skilled in the art, other drawings can be obtained according to the following drawings without any inventive work.

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

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a schematic structural view of another viewing angle of the compound cutting tool of the present invention.

Fig. 1 to 3 include:

the tool comprises a tool shank part 1, a cutting part 2, a reinforcing rib 20, a boring tool bit 3, a flank surface 30, a first milling tool bit 40, a second milling tool bit 41 and

chip grooves

50 and 51.

Detailed Description

The invention will be further described with reference to the following examples.

The composite cutting tool of the present invention, as shown in fig. 1 and 3, includes a shank portion 1 and a cutting portion 2 provided at a front end of the shank portion 1. The cutting part 2 comprises a boring head 3 and a milling head projecting forward: the boring cutter head 3 is a drill bit, and the boring cutter head 3 is arranged at the axis A of the cutter handle part 1; the number of the milling cutter heads is two, namely a first milling cutter head 40 and a second milling cutter head 41, the first milling cutter head 40 and the second milling cutter head 41 are respectively positioned at two sides of the boring cutter head 3, and the first milling cutter head 40 and the second milling cutter head 41 are both circumferentially arranged by taking the axis A of the composite cutter as the center of a circle, namely when the composite cutter cuts, the cutting paths of the first milling cutter head 40 and the second milling cutter head 41 are on the same circumferential line. The first milling cutter head 40 and the second milling cutter head 41 are symmetrically arranged by taking the axis A of the composite cutter as a center, and the orientation of the cutting edge of the first milling cutter head 40 is opposite to that of the cutting edge of the second milling cutter head 41, so that when the composite cutter is used for cutting, the two milling cutter heads cut along the same direction, and the cutting efficiency is high. The boring cutter head 3 is used for machining a center hole of a product, the first milling cutter head 40 and the second milling cutter head 41 of the milling cutter head are arranged on two sides of the boring cutter head 3, when the compound cutter is used for cutting, the first milling cutter head 40 and the second milling cutter head 41 rotate around the axis A of the cutter handle portion 1, the first milling cutter head 40 and the second milling cutter head 41 can cut the side edge of the product, the boring cutter head 3 and the milling cutter heads are matched with each other to achieve the multipurpose of the cutter, the machining time of the product can be saved, the cost of the cutter is saved, the error superposition of the product size precision caused by the fact that the cutter is installed for many times can be prevented, and the stability of the product size is guaranteed. The orientation of the cutting edges of the first milling cutter head 40 is opposite to the orientation of the cutting edges of the second milling cutter head 41. The cutting part 2 is provided with two

chip removal grooves

50 and 51, wherein one chip removal groove 50 is positioned between the boring cutter head 3 and the first milling cutter head 40, and the other chip removal groove 51 is positioned between the boring cutter head 3 and the second milling cutter head 41, the structure arrangement enables chips cut by the first milling cutter head 40, chips cut by the second milling cutter head 41 and chips drilled by the boring cutter head 3 to be rapidly discharged through the

chip removal grooves

50 and 51, meanwhile, the cut redundant heat is also taken out through the chips, and the

chip removal grooves

50 and 51 play a role in chip removal and heat dissipation. In another, less preferred embodiment, when the compound tool is cutting, the cutting paths of the first and second

milling cutter heads

40, 41 are on the same circumferential line, the cutting edges of the first milling cutter head 40 are oriented in the opposite direction to the cutting edges of the second milling cutter head 41, but the first and second

milling cutter heads

40, 41 are not arranged symmetrically about the axis a of the compound tool.

The angle between the flank 30 of the end edge of the boring cutter head 3 and the front end of the shank portion 1 is 10 ° to 20 °, preferably, the angle between the flank 30 of the end edge of the boring cutter head 3 and the front end of the shank portion 1 is 10 °, 15 ° or 20 °, which is set to facilitate the discharge of chips after cutting. The cutting diameter of the boring head is smaller than the cutting diameter of the milling head, the distance between the first 40 and the second 41 milling head of the milling head being 10cm to 13 cm.

As shown in fig. 2, the junction of the root of the first milling cutter head 40 and the front end of the cutter handle portion 1, the junction of the root of the second milling cutter head 41 and the front end of the cutter handle portion 1 are all provided with a reinforcing rib 20, the reinforcing rib 20 is provided with an inclined surface, an included angle between the inclined surface and the axis a of the cutter handle portion 1 is 45 degrees, a chamfer on the outer side edge of a processed product is 45 degrees, the product is smooth and excessive, barbs and the like cannot appear, and the appearance is attractive.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A compound tool, characterized in that: the axis of the front end of the composite cutter is convexly extended with a boring cutter head, and the non-axis of the front end is convexly extended with a milling cutter head.

2. The composite tool as set forth in claim 1, wherein: the two milling cutter heads are respectively positioned on two sides of the boring cutter head, and the two milling cutter heads are circumferentially arranged by taking the axis of the composite cutter as the circle center.

3. The composite tool as set forth in claim 2, wherein: two milling cutter head, the position with compound tool's axle center sets up as central symmetry, and two milling cutter head's cutting edge opposite direction.

4. The composite tool as set forth in claim 1, wherein: the cutting diameter of the boring cutter head is smaller than that of the milling cutter head.

5. The composite tool as set forth in claim 2, wherein: and reinforcing ribs are arranged at the joints of the roots of the two milling cutter heads and the front end of the compound cutter.

6. The composite tool according to any one of claims 1-5, wherein: still include two junk grooves, one of them junk groove is located between bore hole tool bit and one of them milling cutter head, another junk groove is located between bore hole tool bit and another milling cutter head.