CN205464384U

CN205464384U - Boring machine adds cutter

Info

Publication number: CN205464384U
Application number: CN201620270547.8U
Authority: CN
Inventors: 张鹏飞; 李志尧; 张波
Original assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Current assignee: Zhengzhou Diamond Precision Manufacturing Co Ltd
Priority date: 2016-03-26
Filing date: 2016-03-26
Publication date: 2016-08-17
Anticipated expiration: 2026-03-26

Abstract

The utility model discloses a boring machine adds cutter, including the handle of a knife, the lower part of handle of a knife is equipped with the tool bit, the left end of tool bit bottom is equipped with knife tip A, the right -hand member of tool bit bottom is equipped with knife tip B, knife tip A's radius of gyration is greater than knife tip B's radius of gyration, knife tip A's the height that highly is higher than knife tip B, the rough machining in -process of bore hole, knife tip B contacts the work piece earlier and processes, and knife tip A contacts the work piece again and processes, this bite that just equals to have reduced the cutter, having avoided the bite, too big and the cutter grinder aggravation decreases, guarantees not lengthen process time in the protection cutter, has reduced workman's intensity of labour, has guaranteed the profit of enterprise.

Description

A kind of Boring machine adds cutter

Technical field

This utility model relates to cutter field, is specially a kind of Boring machine and adds cutter.

Background technology

Along with the development of mechanical technology, it is continuous that mechanical performance and dynamic index are required by automobile equipment Improving, the degree of depth and the diameter of its piston pin hole are also continuously increased, and the requirement to machining accuracy is more and more higher, This results in its difficulty of processing and strengthens, and during roughing, general employing whole hard alloy boring cutter carries out pin-and-hole Roughing, in order to accelerate processing progress, improves working (machining) efficiency, and rough machined bite is the biggest, Chip is in tool surface sliding, thus increases the frictional force of tool surface, exacerbates the abrasion of cutter, fall Low cutter life, adds tool changing frequency, and this increases the time of work pieces process virtually, reduces The efficiency of enterprise, directly affects enterprise profit, and due to the increase of chipping allowance, in tool sharpening Moment of torsion increase so that knife bar deformation aggravation, this just make the depth of parallelism of pin-and-hole in roughing, symmetry with And pin-and-hole is difficult to ensure that technological requirement to the perpendicularity of home record, add the difficulty of subsequent fine processing, not only Postpone completion date, it is also difficult to ensure crudy.

Summary of the invention

The purpose of this utility model is to provide a kind of Boring machine to add cutter, to solve in above-mentioned background technology The problem proposed.

For achieving the above object, this utility model provides following technical scheme: a kind of Boring machine adds cutter, Including handle of a knife, the bottom of described handle of a knife is provided with cutter head, and the left end bottom described cutter head is provided with point of a knife A, described Right-hand member bottom cutter head is provided with point of a knife B, the radius of turn of the described point of a knife A radius of turn more than point of a knife B, The height of the described point of a knife A height higher than point of a knife B.

Preferably, the blade of described point of a knife A and point of a knife B is equipped with the land of 0.1mm.

Preferably, the relief angle of described land is 0 °.

Preferably, the blade anterior angle of described point of a knife A and point of a knife B is 3 °.

Compared with prior art, the beneficial effects of the utility model are: this Boring machine adds the point of a knife A of cutter Radius of turn more than the radius of turn of point of a knife B, the height of the point of a knife A height higher than point of a knife B, bore hole Roughing during, point of a knife B first contacts workpiece and is processed, and point of a knife A contacts workpiece again and is processed, This bite being equal to decrease cutter, it is to avoid bite is excessive and the tool wear aggravated, is protecting Ensure while protecting cutter not extend process time, reduce the labor intensity of workman, it is ensured that enterprise Profit, the blade of this utility model point of a knife A and point of a knife B is equipped with the land of the 0.1mm that relief angle is 0 °, Not only increase the rigidity of point of a knife, moreover it is possible in the case of allowance is gradually increased, play support guide Effect, the blade anterior angle of this utility model point of a knife A and point of a knife B is 3 °, can balance owing to cold welding generates Built-up edge cause negative rake, extrude pin-and-hole blank, eliminate the dither produced therefrom.

Accompanying drawing explanation

Fig. 1 is this utility model structural representation.

In figure: 1, handle of a knife, 2, cutter head, 3, point of a knife A, 4, point of a knife B.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this The scope of utility model protection.

Referring to Fig. 1, this utility model provides a kind of technical scheme: a kind of Boring machine adds cutter, including cutter Handle 1, the bottom of described handle of a knife 1 is provided with cutter head 2, and the left end bottom described cutter head 2 is provided with point of a knife A3, institute State the right-hand member bottom cutter head 2 and be provided with point of a knife B4, the rotation more than point of a knife B4 of the radius of turn of described point of a knife A3 Turn radius, the height of the described point of a knife A3 height higher than point of a knife B4, during the roughing of bore hole, cutter Point B first contacts workpiece and is processed, and point of a knife A contacts workpiece again and is processed, and this is equal to decrease cutter The bite of tool, it is to avoid bite is excessive and the tool wear aggravated, ensures while protection cutter Process time does not extends, and reduces the labor intensity of workman, it is ensured that the profit of enterprise, this utility model It is equipped with the land of the 0.1mm that relief angle is 0 ° on the blade of point of a knife A3 and point of a knife B4, not only increases cutter The rigidity of point, moreover it is possible to play the effect of support guide, this practicality in the case of allowance is gradually increased The blade anterior angle of novel point of a knife A3 and point of a knife B4 is 3 °, can balance the built-up edge generated due to cold welding and make Become negative rake, extrude pin-and-hole blank, eliminate the dither produced therefrom, it is ensured that crudy, Get ready for the follow-up polish carried out.

Embodiment the most of the present utility model, for the ordinary skill people of this area For Yuan, it is possible to understand that can be real to these in the case of without departing from principle of the present utility model and spirit Executing example to carry out multiple change, revise, replace and modification, scope of the present utility model is by claims And equivalent limits.

Claims

1. Boring machine adds a cutter, including handle of a knife (1), it is characterised in that: described handle of a knife (1) Bottom is provided with cutter head (2), and the left end of described cutter head (2) bottom is provided with point of a knife A (3), described cutter head (2) right-hand member of bottom is provided with point of a knife B (4), and the radius of turn of described point of a knife A (3) is more than point of a knife B (4) radius of turn, the height of described point of a knife A (3) height higher than point of a knife B (4).

A kind of Boring machine the most according to claim 1 adds cutter, it is characterised in that: described point of a knife A (3) land of 0.1mm and it is equipped with on the blade of point of a knife B (4).

A kind of Boring machine the most according to claim 2 adds cutter, it is characterised in that: described land Relief angle is 0 °.

A kind of Boring machine the most according to claim 1 adds cutter, it is characterised in that: described point of a knife A And the blade anterior angle of point of a knife B (4) is 3 ° (3).