CN216680266U

CN216680266U - Single-blade forming cutter for machining inner hole of copper piece spring piece

Info

Publication number: CN216680266U
Application number: CN202123282787.XU
Authority: CN
Inventors: 柳亭亭; 严雪豹; 周雨
Original assignee: Suzhou Tima Precision Machinery Co ltd
Current assignee: Suzhou Tima Precision Machinery Co ltd
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-06-07
Anticipated expiration: 2031-12-24

Abstract

The utility model discloses a single-edge forming cutter for machining an inner hole of a copper piece spring piece, which comprises a cutting part and a handle part, wherein a single-edge forming blade is arranged at the front end of the cutting part and comprises an in-hole chamfer blade, a first arc R blade, a second arc R blade, a third arc R blade and an orifice chamfer blade, the in-hole chamfer blade is arranged at the end part of the cutting part, the first arc R blade is arranged between the in-hole chamfer blade and the second arc R blade in a stepped manner, the third arc R blade is arranged between the second arc R blade and the orifice chamfer blade, the third arc R blade and the second arc R blade are positioned on the same horizontal line, and the orifice chamfer blade and the three arc R blades are arranged adjacently; the chip groove extends to the tail part of the blade part from the chamfer edge in the hole. The utility model integrates the chamfering, the step processing, the forming of the circular arc R in the hole and the orifice chamfering, and the processing of the inner hole of the copper spring piece can be realized by one cutter, thereby improving the processing beat and reducing the processing cost of the workpiece.

Description

Single-blade forming cutter for machining inner hole of copper piece spring piece

Technical Field

The utility model relates to the technical field of cutters, in particular to a single-edge forming cutter for machining an inner hole of a copper spring piece.

Background

Copper spare spring leaf hole is carrying out the hole course of working, need carry out downthehole chamfer to the hole, ladder processing, downthehole circular arc R shaping and drill way chamfer processing, because current cutter function singleness, the processing of one process can only be realized to a section cutter, to the hole processing requirement of calliper, adopt many types of cutters to accomplish usually, change the cutter every time and all need carry out the tool setting, tool changing tool setting occupation time is longer, be used for the processing of a section work piece to many cutters, machining efficiency is low, and the cost is higher.

SUMMERY OF THE UTILITY MODEL

Utility model purpose: the utility model aims to provide a single-edge forming cutter for machining an inner hole of a copper spring piece, which integrates multi-hole inner chamfering, step machining, inner circular arc R forming and orifice chamfering, and can realize machining of the inner hole of the copper spring piece, improve machining rhythm and reduce machining cost of a workpiece.

The technical scheme is as follows: in order to achieve the purpose, the utility model provides a single-edge forming cutter for machining an inner hole of a copper piece spring piece, which comprises a cutting part and a handle part, wherein the front end of the cutting part is provided with a single-edge forming blade, the single-edge forming blade comprises an in-hole chamfer blade, an arc R blade I, an arc R blade II, an arc R blade III and an orifice chamfer blade, the in-hole chamfer blade is arranged at the end part of the cutting part, the arc R blade I is arranged between the in-hole chamfer blade and the arc R blade II and is arranged in a stepped manner, the arc R blade III is arranged between the arc R blade II and the orifice chamfer blade, the arc R blade III and the arc R blade II are positioned on the same horizontal line, and the orifice chamfer blade and the arc R blade are arranged adjacently; the chip groove extends from the chamfer edge in the hole to the tail part of the edge part.

Further, an arc transition section is arranged between the front end and the tail part of the blade part. The design is used for dispersing the stress concentration effect and avoiding the situation of edge breakage in the drilling process.

Further, the included angle formed by the hole inner chamfer edge and the horizontal central axis is 45 degrees.

Further, the edge length between the hole chamfering edge and the first arc R edge is larger than the edge length between the second arc R edge and the third arc R edge.

Further, the orifice chamfer edge forms an angle of 75 ° with the horizontal central axis.

Further, the total blade length of the single-blade forming is less than one half of the blade length.

Further, the blade part and the handle part are provided with an inner cooling channel in a penetrating mode. The design of the inner cooling channel is that,

according to the technical scheme, the utility model has the beneficial effects that:

(1) the single-blade forming cutter for machining the inner hole of the copper spring piece integrates chamfering in the hole, multi-step machining, forming of the inner arc R in the hole and chamfering of the hole opening, and can machine the inner hole of the copper spring piece by one cutter, so that the machining beat is improved, and the machining cost of a workpiece is reduced.

(2) The single-edge forming cutter for machining the inner hole of the copper piece spring piece is used for single-edge cutting, so that the cutting performance is improved, and the service life of the cutter is prolonged; the chamfering treatment can be carried out on the inner hole and the orifice, and the surface quality of the workpiece is ensured.

Drawings

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

FIG. 2 is an end view of the present invention;

fig. 3 is an enlarged partial view of a single-edged profiled edge according to the utility model.

Detailed Description

The utility model is further elucidated with reference to the drawings and the embodiments.

The single-edge forming tool for processing the inner hole of the copper spring piece as shown in the figures 1 to 3 comprises edges

The single-edge forming blade comprises an in-hole chamfer blade 11, an arc R blade 12, an arc R blade 13, an arc R blade three 14 and an orifice chamfer blade 15, wherein the in-hole chamfer blade 11 is arranged at the end part of the blade 1, the arc R blade 12 is arranged between the in-hole chamfer blade 11 and the arc R blade 13 and is arranged in a stepped manner, the arc R blade three 14 is arranged between the arc R blade 13 and the orifice chamfer blade 15, the arc R blade three 14 and the arc R blade two 13 are positioned on the same horizontal line, and the orifice chamfer blade 11 and the arc R blade three 14 are arranged adjacently; the junk slots 16 extend from the bore chamfer edge 11 to the tail of the edge portion 1.

In this embodiment, an arc transition section 17 is provided between the front end and the tail end of the blade portion 1.

In this embodiment, the angle between the hole chamfer 11 and the horizontal central axis is 45 °.

In this embodiment, the edge length between the hole chamfer edge 11 and the first arc R edge 12 is longer than the edge length between the second arc R edge 13 and the third arc R edge 14.

In this embodiment, the angle formed by the orifice chamfer edge 11 and the horizontal central axis is 75 °.

In the embodiment, the total edge length of the single-edge molding A is less than half of the edge length.

In the embodiment, the blade part 1 and the handle part 2 are provided with an inner cooling channel 3.

The examples are given solely for the purpose of illustration and are not to be construed as limitations of the present invention, as various equivalents will occur to those skilled in the art upon reading the present invention and are intended to be within the scope of the utility model as defined in the claims appended hereto.

Claims

1. The utility model provides a processing copper spare spring leaf hole's single-edge shaping sword which characterized in that: the single-edge forming cutter comprises a cutting part (1) and a handle part (2), wherein the front end of the cutting part (1) is provided with a single-edge forming cutter (A), the single-edge forming cutter comprises an in-hole chamfer cutter (11), a circular arc R cutter (12), a circular arc R cutter (13), a circular arc R cutter (14) and an orifice chamfer cutter (15), the in-hole chamfer cutter (11) is arranged at the end part of the cutting part (1), the circular arc R cutter (12) is arranged between the in-hole chamfer cutter (11) and the circular arc R cutter (13), the three are arranged in a ladder manner, the circular arc R cutter (14) is arranged between the circular arc R cutter (13) and the orifice chamfer cutter (15), the circular arc R cutter (14) and the circular arc R cutter (13) are on the same horizontal line, and the orifice chamfer cutter (15) and the circular arc R cutter (14) are arranged adjacent to each other; the chip groove (16) extends from the chamfer edge (11) in the hole to the tail part of the blade part (1).

2. The single-edge forming tool for machining the inner hole of the copper piece spring piece as claimed in claim 1, wherein: an arc transition section (17) is arranged between the front end and the tail part of the blade part (1).

3. The single-edge forming tool for machining the inner hole of the copper piece spring piece as claimed in claim 2, wherein: the included angle formed by the hole inner chamfer angle blade (11) and the horizontal central axis is 45 degrees.

4. The single-edge forming tool for machining the inner hole of the copper piece spring piece as claimed in claim 3, wherein: the edge length between the hole inner chamfer edge (11) and the circular arc R edge I (12) is longer than the edge length between the circular arc R edge II (13) and the circular arc R edge III (14).

5. The single-edge forming tool for machining the inner hole of the copper piece spring piece as claimed in claim 4, wherein: the included angle formed by the orifice chamfer edge (15) and the horizontal central axis is 75 degrees.

6. The single-edge forming tool for machining the inner hole of the copper piece spring piece as claimed in claim 1, wherein: the total edge length of the single-edge forming edge (A) is less than half of the edge length.

7. The single-edge forming tool for machining the inner hole of the copper piece spring piece as claimed in claim 1, wherein: the cutting part (1) and the handle part (2) are provided with an inner cooling channel (3) in a penetrating way.