CN205437362U

CN205437362U - Diamond reamer

Info

Publication number: CN205437362U
Application number: CN201620239416.3U
Authority: CN
Inventors: 谢家晨; 高勇
Original assignee: JIANGMEN GEWEI PRECISION MACHINERY CO Ltd
Current assignee: JIANGMEN GEWEI PRECISION MACHINERY CO Ltd
Priority date: 2016-03-24
Filing date: 2016-03-24
Publication date: 2016-08-10
Anticipated expiration: 2026-03-24

Abstract

The utility model discloses a diamond reamer, including blade and the handle of a knife that is used for fixed blade, be provided with the diamond cutter head in the blade, the overhead cutting portion that is provided with of diamond cutter, cutting portion include a plurality of cutting face, and the outer fringe setting of blade is the echelonment, and the department of buckling of echelonment outer fringe is provided with the buffering face. Come to carry out multistage processing to the shoulder hole through a plurality of cutting face, the cutting output increases gradually makes the course of working mild, come to locate to go on the smoothness processing to the buckling of inner wall of shoulder hole through the buffering face, the pore wall in the bonnet's after cutting face cooperation buffering face makes the reamer process motor hole does not have li jiao and turnup burr, the damage of sealed oil blanket and pore wall and the oil circuit jam that sharp angle burr dropped and arouses when having avoided the assembly, the less resistance of buffering face processed circular arc in the pore wall during assembly, promote assembly efficiency.

Description

A kind of diamond reamer

Technical field

This utility model relates to a kind of brill, hinge class cutter.

Background technology

The hole wall of the motor aperture of hood is after machining, there is the residual processing such as favourable angle, turnup burr in the turning point of stepped outer rim, can damage hermetic oil seal and hole wall when assembling and produce bits foam, blocking oil circuit, the operation to part and electromotor has undesirable effect.Therefore, it is necessary to be further improved.

Utility model content

This utility model aims to solve the problem that above-mentioned mentioned technical problem, a kind of diamond reamer is provided, including blade with for fixing the handle of a knife of blade, diamond cutter head it is provided with in blade, it is provided with cutting portion on diamond cutter head, cutting portion includes several cutting faces, and the outer rim of blade arranges stepped, and the bending place of stepped outer rim is provided with buffering suface.

Preferably, cutting face is the first arc surface.

Preferably, buffering suface is the second arc surface.

Preferably, cutting face includes the first cutting face and the second cutting face, and the distance of the axis in the first cutting face to handle of a knife is less than the distance in the second cutting face to the axis of handle of a knife.

Preferably, the first cutting face is more than second cutting face distance to the end of handle of a knife to the distance of the end of handle of a knife.

Preferably, blade has several that be arranged in uniform way in the circumference of handle of a knife.

Preferably, handle of a knife being provided with the otch for fixing blade, otch includes axial locating surface and the radial direction locating surface that the outer wall with blade fits.

Preferably, one end of axial locating surface axial locating surface corresponding with blade is arc-shaped.

Preferably, the recess of accommodating diamond cutter head it is provided with in blade.

Provide the benefit that: compared with prior art, a kind of diamond reamer of the present utility model carries out multistage processing by several cutting faces to shoulder hole, cutting output gradually increases so that the course of processing is mild, by buffering suface, the bending place of the inwall of shoulder hole is smoothed, the hole wall of motor aperture of hood after cutting face coordinates buffering suface to make reamer processing does not has Li Jiao and turnup burr, hermetic oil seal and the damage of hole wall and Li Jiao when avoiding assembling, the oil circuit blocking that burr drops caused, the circular arc smaller resistance that during assembling, in hole wall, buffering suface processes, promote efficiency of assembling.

Accompanying drawing explanation

Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail, wherein:

Fig. 1 is the structural representation at a visual angle of diamond reamer；

Fig. 2 is the structural representation at another visual angle of diamond reamer；

Fig. 3 is the structural representation in Fig. 1 after part A amplification；

Fig. 4 is the structural representation in Fig. 1 after part B amplification.

Detailed description of the invention

As Figure 1-Figure 4, a kind of diamond reamer, including blade 1 with for fixing the handle of a knife 2 of blade 1, diamond cutter head 3 it is provided with in blade 1, cutting portion 31 it is provided with on diamond cutter head 3, cutting portion 31 includes several cutting faces, the outer rim 11 of blade 1 arranges stepped, the bending place of stepped outer rim 11 is provided with buffering suface 12, stepped outer rim 11 includes peripheral cutting edge and the chamfering cutting edge of the hole wall of the motor aperture for cutting hood, buffering suface 12 is peripheral cutting edge and the second arc surface of chamfering blades mouth junction, the two ends of buffering suface 12 respectively with peripheral cutting edge and chamfering cutting edge is tangent is connected.

Cutting face preferably includes two the first arc surfaces, it is the first cutting face 311 and the second cutting face 312 respectively, first cutting face 311 is less than second cutting face 312 distance to the axis of handle of a knife 2 to the distance of the axis of handle of a knife 2, and the distance in the first cutting face 311 to the end 21 of handle of a knife 2 is more than the distance in the second cutting face 312 to the end 21 of handle of a knife 2.First cutting face 311 coordinates the second cutting face 312 can repeatedly process shoulder hole, can alleviate the degree of wear of diamond cutter head 3 in the course of processing, improves machining accuracy.

Buffering suface 12 is preferably the second arc surface, diamond reamer when processing shoulder hole, the bending place of the corresponding shoulder hole of buffering suface 12, the processing of buffering suface 12 makes the bending place of shoulder hole smoother, improve the surface smoothness of shoulder hole, enable shoulder hole preferably to match with other workpiece.

Blade 1 has several in the circumference being arranged on handle of a knife 2 in uniform way, the otch 22 for fixing blade 1 it is provided with on handle of a knife 2, otch 22 includes axial locating surface 221 and the radial direction locating surface 222 that the outer wall with blade 1 fits, and one end of axial locating surface 221 and blade 1 correspondence axial locating surface 221 is arc-shaped.

Being provided with the recess 13 of accommodating diamond cutter head 3 in blade 1, cutting face is obliquely installed on recess 13 ground dorsad.

Above example is only in order to illustrate that the technical solution of the utility model is not limited, all any amendments without departing from this utility model spirit and scope or equivalent, and it all should be contained in the range of technical solutions of the utility model.

Claims

1. a diamond reamer, it is characterised in that include blade and for fixing the handle of a knife of blade, being provided with diamond cutter head in blade, diamond cutter head is provided with cutting portion, cutting portion includes several cutting faces, the outer rim of blade arranges stepped, and the bending place of stepped outer rim is provided with buffering suface.

A kind of diamond reamer the most according to claim 1, it is characterised in that described cutting face is the first arc surface.

A kind of diamond reamer the most according to claim 1, it is characterised in that described buffering suface is the second arc surface.

A kind of diamond reamer the most according to claim 1, it is characterised in that described cutting face includes the first cutting face and the second cutting face, and the distance of the axis in the first cutting face to handle of a knife is less than the distance in the second cutting face to the axis of handle of a knife.

A kind of diamond reamer the most according to claim 4, it is characterised in that the distance in described first cutting face to the end of handle of a knife is more than the distance in the second cutting face to the end of handle of a knife.

A kind of diamond reamer the most according to claim 1, it is characterised in that described blade has several that be arranged in uniform way in the circumference of handle of a knife.

A kind of diamond reamer the most according to claim 1, it is characterised in that be provided with the otch for fixing blade on described handle of a knife, otch includes axial locating surface and the radial direction locating surface that the outer wall with blade fits.

A kind of diamond reamer the most according to claim 7, it is characterised in that one end of described axial locating surface axial locating surface corresponding with blade is arc-shaped.

A kind of diamond reamer the most according to claim 1, it is characterised in that be provided with the recess of accommodating diamond cutter head in described blade.