CN212857937U

CN212857937U - High-precision taper ball milling cutter for processing impeller

Info

Publication number: CN212857937U
Application number: CN202020630644.XU
Authority: CN
Inventors: 奚旭; 奚志宇
Original assignee: Wuxi Ruibang Tool Technology Co ltd
Current assignee: Wuxi Ruibang Tool Technology Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2021-04-02
Anticipated expiration: 2030-04-23

Abstract

The utility model provides a high accuracy tapering ball milling cutter of processing impeller has solved the problem that straight-bar milling cutter need constantly adjust the milling cutter angle when processing the blade. The utility model discloses a cut the axle and establish the handle of a knife at cutting axle rear portion, cut the axle and be thick structure after thin before for, cut epaxial spiral around being equipped with a plurality of cutting edge, form spiral chip groove between the adjacent cutting edge, the front end of cutting the axle constitutes the end sword jointly with the front end of cutting edge. The cutting shaft is designed to be of a front-thin and rear-thick structure, the cutting blade is spirally arranged on the cutting shaft, the cutting blade is attached to the blade when the blade is machined, then the blade attachment cutting blade is directly pushed to spirally advance, multiple angle adjustment of the milling cutter is not needed, cutting processing of burrs and burrs on the impeller can be achieved, and machining speed is high.

Description

High-precision taper ball milling cutter for processing impeller

Technical Field

The utility model relates to the technical field of machining, especially indicate a high accuracy tapering ball milling cutter of processing impeller.

Background

More burrs and burrs can be left after the impeller is cast, and the burrs and burrs need to be subjected to chip cutting by a milling cutter and removed. The molded surface of the impeller blade is a space free-form surface, the shape is complex, the requirements of the size of the blade part, the line profile degree, the blade waviness, the surface roughness and the like are high, when the straight-rod-shaped milling cutter is used for processing, the angle of the milling cutter needs to be continuously adjusted to adapt to the thickness and radian change of the blade, the operation is troublesome, and the processing time is long.

SUMMERY OF THE UTILITY MODEL

Need constantly adjust the problem of milling cutter angle when processing the blade in order to solve the straight-bar milling cutter who exists among the background art, the utility model provides a high accuracy tapering ball milling cutter of processing impeller.

The technical scheme of the utility model is that: the high-precision taper ball milling cutter for processing the impeller comprises a cutting shaft and a cutter handle arranged at the rear part of the cutting shaft, wherein the cutting shaft is of a front-thin and rear-thick structure, a plurality of cutting edges are spirally wound on the cutting shaft, spiral chip grooves are formed between adjacent cutting edges, and the front end of the cutting shaft and the front end of each cutting edge jointly form an end edge.

The spiral chip groove is of a structure with a narrow front part and a wide rear part.

The rear part of the spiral chip pocket is connected with a relief angle gradually and smoothly transited to the tool shank.

The number of the cutting edges is 2-5.

The front end of the cutting shaft is of a conical ball structure, and the conical ball and the front end of the cutting edge jointly form an end edge.

The utility model has the advantages that: the utility model discloses the processing of mainly used blade, (1) the axle of cutting is established to the thick structure in thin back before, and the cooperation spiral is established and is cut epaxial cutting edge, when processing the blade, makes cutting edge and blade laminating, then directly promotes blade laminating cutting edge spiral and gos forward, need not to carry out a lot of angle modulation to milling cutter, can realize cutting the processing to deckle edge, the burr on the impeller, and process velocity is fast. (2) The rear part of the spiral chip pocket is provided with a relief angle which gradually and smoothly transits to the cutter handle, so that the abrasive resistance of the cutting edge is increased, and the service life of the cutter is prolonged. (3) The spiral chip flutes formed between adjacent cutting edges are designed to be of a structure with a narrow front part and a wide rear part, so that impurities falling into the spiral chip flutes after cutting are easily discharged from a rear corner, the situation that the surfaces of the impeller are scratched due to the fact that the cut impurities rub with the surfaces of the blades is avoided, and the surface processing smoothness of the impeller is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the main structure of the present invention;

in the figure, 1, shank, 2, cutting edge, 3, end edge, 4, relief angle, 5, helical chip flute.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

Example 1: a high-precision taper ball milling cutter for processing an impeller is shown in figure 1 and comprises a cutting shaft and a cutter handle 1 arranged at the rear part of the cutting shaft, wherein the cutting shaft is of a front-thin and rear-thick structure, 2-5 cutting edges 2 can be spirally wound on the cutting shaft, and the number of the cutting edges 2 in the embodiment is 3. The cutting shaft is designed to be of a front-thin and rear-thick structure, the cutting blade 2 is spirally arranged on the cutting shaft, when the blade is machined, the cutting blade 2 is attached to the blade, then the blade attaching cutting blade 2 is directly pushed to spirally advance, multiple angle adjustment of a milling cutter is not needed, cutting processing of burrs and burrs on the impeller can be achieved, and machining speed is high. The front end of the cutting shaft is of a conical ball structure, and the conical ball and the front end of the cutting edge 2 jointly form an end edge 3. Spiral chip flutes 5 are formed between adjacent cutting edges 2, so that the wear resistance of the cutting edges is improved, and the service life of the cutter is prolonged. The spiral chip flute 5 is of a structure with a narrow front part and a wide rear part, so that impurities falling into the spiral chip flute 5 after cutting are easily discharged from the rear angle 4, the situation that the cut impurities rub with the surface of a blade to cause scratches on the surface of the impeller is avoided, and the surface processing smoothness of the impeller is improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a high accuracy tapering ball milling cutter of processing impeller which characterized in that: including cutting the axle and establishing handle of a knife (1) at cutting the axle rear portion, the cutting axle is thick structure after thin, cuts epaxial spiral around being equipped with a plurality of cutting edge (2), forms spiral chip groove (5) between adjacent cutting edge (2), end sword (3) are constituteed jointly to the front end of cutting the axle and the front end of cutting edge (2), spiral chip groove (5) are preceding narrow wide structure after, the rear portion of spiral chip groove (5) is connected with relief angle (4) to the smooth transition that advances gradually of handle of a knife (1).

2. A high precision tapered ball mill for machining impellers according to claim 1, wherein: the number of the cutting edges (2) is 2-5.

3. A high precision tapered ball mill for machining impellers according to claim 2, wherein: the front end of the cutting shaft is of a conical ball structure, and the conical ball and the front end of the cutting edge (2) jointly form an end edge (3).