CN206335181U

CN206335181U - Compound counterbore knife

Info

Publication number: CN206335181U
Application number: CN201621477940.0U
Authority: CN
Inventors: 陶峰伟; 焦宗行; 胡晓东
Original assignee: Suzhou Petec Metal Industry Co Ltd
Current assignee: Jiangsu Peitake Sheet Metal Industry Co., Ltd.
Priority date: 2016-12-30
Filing date: 2016-12-30
Publication date: 2017-07-18
Anticipated expiration: 2026-12-30

Abstract

The utility model provides a kind of compound counterbore knife, including handle of a knife, the front end of the handle of a knife is work head, the work head includes all face milling cutters, the height of all face milling cutters is equal to the depth of counterbore and the profile of its side face cutting edge and the profile of counterbore are identical, the front end of all face milling cutters is guide part, fixed mesa and self-lubricating plane bearing are provided between the handle of a knife and all face milling cutters, the self-lubricating plane bearing is intended for maximum inner diameter of the radius more than the counterbore of workpiece to be processed, the fixed mesa and self-lubricating plane bearing.The beneficial effects of the utility model are mainly reflected in：Simple and ingenious structure, the accuracy problem that counterbore is processed on relative soft material can be solved well.

Description

Compound counterbore knife

Technical field

The utility model is related to cutting tool technical field, more particularly to a kind of compound counterbore knife.

Background technology

It can often use riveted structure in industrial every field, therefore can open up and some match somebody with somebody with rivet on workpiece The rivet hole of conjunction, in order to not protrude from workpiece surface, these rivet holes typically use counter bore structure.For the work of iron and steel material quality Part is general to be prepared using counterbore drilling row.And for the workpiece of aluminum alloy material, because material is softer, is crept into and gone using counterbore The problem of positioning is inaccurate can be produced during preparation, the counterbore so processed can produce inclination, and defect rate is high.

Utility model content

The purpose of this utility model be overcome the shortcomings of prior art exist there is provided a kind of compound counterbore knife.

The purpose of this utility model is achieved through the following technical solutions：

A kind of compound counterbore knife, including handle of a knife, the front end of the handle of a knife is work head, and the work head includes all facing cuts Knife, the height of all face milling cutters is equal to the depth of counterbore and the profile of its side face cutting edge and the profile of counterbore are identical, described The front end of all face milling cutters is guide part, and fixed mesa and self-lubricating plane bearing are provided between the handle of a knife and all face milling cutters, The self-lubricating plane bearing is intended for workpiece to be processed, and the radius of the fixed mesa and self-lubricating plane bearing is more than described The maximum inner diameter of counterbore.

It is preferred that, the angle between the cutting edge and its axis of all face milling cutters is less than 45 °.

It is preferred that, the guide part has chamfering in cylinder, its distalmost end.

It is preferred that, the length of the guide part is more than the depth of the counterbore.

It is preferred that, the handle of a knife, fixed mesa, guide part are integrated.

It is preferred that, the side face milling cutter has dismountable wolfram steel cutting edge.

It is preferred that, the self-lubricating plane bearing periphery is connected in the fixed mesa inner ring.

The beneficial effects of the utility model are mainly reflected in：Simple and ingenious structure, can be solved in relatively soft material well The accuracy problem that counterbore is processed on material.

Brief description of the drawings

Technical solutions of the utility model are described further below in conjunction with the accompanying drawings：

Fig. 1：Schematic diagram of the present utility model.

Embodiment

The utility model is described in detail below with reference to embodiment shown in the drawings.But these embodiment party Formula is not limited to the utility model, structure that one of ordinary skill in the art is made according to these embodiments, method or Conversion functionally is all contained in protection domain of the present utility model.

As shown in figure 1, the utility model discloses a kind of compound counterbore knife, including handle of a knife 1, the front end of the handle of a knife 1 is Work head.Specifically, work head includes all face milling cutters 4, the height of all face milling cutters 4 be equal to the depth H of counterbore and its The profile of side face cutting edge is identical with the profile of counterbore.It is preferred that, the folder between the cutting edge and its axis of all face milling cutters 4 Angle is less than 45 °, so, prevents that circumferential cutting force is excessive and causes tipping.Certainly, all face milling cutters 4 can be using dismountable Wolfram steel cutting edge, this quick-disassembly structure has been prior art, be will not be repeated here.

The front end of all face milling cutters 4 is guide part 5, and the guide part 5 has chamfering in cylinder, its distalmost end.Institute The length for stating guide part 5 is more than the depth H of the counterbore.The purpose so designed is that can play to lead for follow-up milling well To effect.

Due to relatively soft metal works, when counterbore processing is carried out, it is easy to excessive or processing can be processed Tilt, therefore the present invention is provided with fixed mesa 2 and self-lubricating plane bearing 3, institute between the handle of a knife 1 and all face milling cutters 4 State self-lubricating plane bearing 3 and be intended for workpiece to be processed, the radius of the fixed mesa 2 and self-lubricating plane bearing 3 is more than institute State the maximum inner diameter of counterbore.The periphery of self-lubricating plane bearing 3 is connected in the inner ring of fixed mesa 2.Work as the utility model Compound counterbore knife when being processed, the height that all face milling cutters 4 can carry out milling is just equal to the depth H of counterbore because The self-lubricating plane bearing 3 and fixed mesa 2 can be connected to workpiece surface, and the counterbore so processed just meets processing It is required that, and under the guiding of guide part 5, contacted with workpiece inner wall for face, it will not also produce the technical problems such as inclined hole.

It is preferred that, the handle of a knife 1, fixed mesa 2, guide part 5 can be integrated.The utility model is simple in construction It is ingenious, the accuracy problem that counterbore is processed on relative soft material can be solved well.

It should be understood that, although the present specification is described in terms of embodiments, but not each embodiment only includes one Individual independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art will should say Bright book is as an entirety, and technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can With the other embodiment of understanding.

The a series of tool described in detail only for feasibility embodiment of the present utility model of those listed above Body illustrates that they are simultaneously not used to limit protection domain of the present utility model, all to be made without departing from the utility model skill spirit Equivalent implementations or change should be included within protection domain of the present utility model.

Claims

1. compound counterbore knife, it is characterised in that：Including handle of a knife（1）, the handle of a knife（1）Front end be work head, the work head Including all face milling cutters（4）, all face milling cutters（4）Height be equal to counterbore depth（H）And the profile of its side face cutting edge with The profile of counterbore is identical, all face milling cutters（4）Front end be guide part（5）, the handle of a knife（1）With all face milling cutters（4）Between Provided with fixed mesa（2）And self-lubricating plane bearing（3）, the self-lubricating plane bearing（3）Workpiece to be processed is intended for, institute State fixed mesa（2）With self-lubricating plane bearing（3）Radius be more than the counterbore maximum inner diameter.

2. compound counterbore knife according to claim 1, it is characterised in that：All face milling cutters（4）Cutting edge and its axle Angle between line is less than 45 °.

3. compound counterbore knife according to claim 1, it is characterised in that：The guide part（5）In cylinder, its distalmost end With chamfering.

4. compound counterbore knife according to claim 3, it is characterised in that：The guide part（5）Length be more than it is described heavy The depth in hole（H）.

5. compound counterbore knife according to claim 1, it is characterised in that：The handle of a knife（1）, fixed mesa（2）, guide part （5）It is integrated.

6. compound counterbore knife according to claim 5, it is characterised in that：All face milling cutters（4）With dismountable tungsten Steel cutting edge.

7. compound counterbore knife according to claim 1, it is characterised in that：The self-lubricating plane bearing（3）Periphery clamping In the fixed mesa（2）Inner ring.