CN202199859U

CN202199859U - An edge-less reamer

Info

Publication number: CN202199859U
Application number: CN2011202835854U
Authority: CN
Inventors: 杨岳峰
Original assignee: Hengyang Fengshun Automobile Axle Co Ltd
Current assignee: Hengyang Fengshun Automobile Axle Co Ltd
Priority date: 2011-08-05
Filing date: 2011-08-05
Publication date: 2012-04-25
Anticipated expiration: 2021-08-05

Abstract

An edge-less reamer for mechanical processing comprises a reamer handle and a reamer head and is characterized in that the outer circumferential surface of the reamer head is provided with axial blade grooves; blades are disposed in the blade grooves; the outer side surfaces of the blades are arc-shaped surfaces consistent with the outer circumferential surface of the reamer head and exposed out of the outer circumferential surface of the reamer head for 1 to 2 mm; the outer circumferential surface of the reamer head is provided with symmetrical indent circular arc transitional surfaces on both sides of the blade grooves; and the indent circular arc transitional surfaces and the outer circumferential surface of the reamer head form front and rear included angles ranging from -30 degrees to -60 degrees. The edge-less reamer realizes cutting processing of inner holes of workpieces through extrusion during working and has low mechanical allowance, thereby effectively reducing surface unevenness of processed inner holes and improving geometrical processing precision of the inner holes; and has a simple structure and low cost, is easy to operate, and is extremely suitable for processing of inner holes with relatively high precision.

Description

A kind of non-blade reamer

Technical field

The utility model relates to a kind of machining tool, particularly a kind of non-blade reamer.

Background technology

At present, in the mechanical processing technique, the cutter that the fine finishining of workpiece endoporus is generally used is for there being the sword reamer, and blade quick abrasion in the use is difficult to guarantee the roughness of bore area after the blade wearing and tearing, and cost is high, uses inconvenient.

Summary of the invention

The purpose of the utility model is in order to overcome above-mentioned weak point, and provides a kind of simple in structure, and cost is low, and is easy to operate, is fit to the non-blade reamer of degree of precision endoporus processing.

The purpose of the utility model is achieved in that a kind of non-blade reamer; Comprise handle of a knife, cutter head; It is characterized in that having the axial cutters film trap on the cutter head periphery, blade be installed in the insert groove, the blade lateral surface for the arcwall face consistent with the cutter head periphery, expose cutter head periphery 1-2 ㎜; The indent arc transition face of symmetry is arranged on the cutter head periphery of insert groove both sides, and the forward and backward angle of indent arc transition face and cutter head periphery is-30 °～-60 °.

The utility model, is realized workpiece endoporus cut with the mode of pushing during operation owing to adopt above design; The waste material that produces is discharged from the gap of indent arc transition face, and allowance is little, thereby effectively reduces the surface roughness value of processed endoporus; Improve the geometry machining accuracy of endoporus, simple in structure, cost is low; Easy to operate, be particularly suitable for the processing of degree of precision endoporus.

Description of drawings

Fig. 1 is the utility model example structure sketch map;

Fig. 2 is the right view of Fig. 1.

The specific embodiment

Combine the accompanying drawing illustrated embodiment that the utility model is made detailed description at present.

Like Fig. 1, shown in Figure 2; A kind of non-blade reamer comprises handle of a knife 1, cutter head 2, has four axial cutters film traps 3 on cutter head 2 peripheries equably; Blade 4 is installed in the insert groove 3; Blade 4 lateral surfaces for the arcwall face consistent with cutter head 2 peripheries, expose cutter head 2 peripheries 1-2 ㎜, the indent arc transition face 5 of symmetry is arranged on cutter head 2 peripheries of insert groove 3 both sides, the forward and

backward angle

6,7 of indent arc transition face 5 and cutter head 2 peripheries is-30 °～-60 °.

Claims

1. non-blade reamer; Comprise handle of a knife (1), cutter head (2); It is characterized in that having axial cutters film trap (3) on cutter head (2) periphery; Blade (4) is installed in the insert groove (3); Blade (4) lateral surface for the arcwall face consistent with cutter head (2) periphery, expose cutter head (2) periphery 1-2 ㎜, the indent arc transition face (5) of symmetry is arranged on cutter head (2) periphery of insert groove (3) both sides, forward and backward angle (6), (7) of indent arc transition face (5) and cutter head (2) periphery are-30 °～-60 °.

2. a kind of non-blade reamer as claimed in claim 1 is characterized in that having four axial cutters film traps (3) equably on cutter head (2) periphery.