CN102225478B

CN102225478B - Method for machining profile of rotating spigot part

Info

Publication number: CN102225478B
Application number: CN 201110150074
Authority: CN
Inventors: 王家颖
Original assignee: Harbin Aircraft Industry Group Co Ltd
Current assignee: Harbin Aircraft Industry Group Co Ltd
Priority date: 2011-06-03
Filing date: 2011-06-03
Publication date: 2012-12-12
Anticipated expiration: 2031-06-03
Also published as: CN102225478A

Abstract

The invention belongs to the technical field of machining of mechanical parts, and particularly relates to a method for machining a profile of a rotating spigot part. The invention provides a numerical control machining method so as to ensure the machining precision requirement of the spigot profile of the spigot part. By virtue of calculating the width precision of a cutter and the spigot of the part, the radial feeding route and axial machining route can be set, and the machining tolerance of the spigot is 0.001mm in order to ensure the smoothness requirement. The profile of the rotating spigot part can be machined completely only by one time, and the site machining effect is good, thus completely achieving the requirement on the quality of the spigot part.

Description

A kind of processing method of rotating shape in the socket part

Technical field

The invention belongs to the machine components processing technique field, particularly relate to a kind of rotation socket machining parts.

Background technology

In the prior art; A kind of processing method is when this parts with socket of processing, adopt earlier interior socket to part partly to carry out roughing after, carry out the fine finishining of shape in the socket again; When making in this way; Because the generation of the cutter relieving phenomenon of part can make the part socket produce distortion, thereby not reach the parts size precision requirement.Another kind of processing method is earlier in the jack part allowance, again in the processing of polishing of pincers worker in-process.Through the jack part of artificial parts of polishing, the cambered surface phenomenon can occur like this, the part thickness is unstable, and size is unstable, be difficult to reach the requirement of parts size precision, and the long processing time working (machining) efficiency is low.

Summary of the invention

The objective of the invention is:

The purpose of this invention is to provide a kind of numerical-control processing method, guarantee the interior shape dimensioned required precision of socket of socket part.

Technical scheme of the present invention is:

This method may further comprise the steps:

The first step according to form height degree in the part socket, is divided into some axial stratifications by every layer of 0.5MM with it;

Second step, according to following feed path each axial stratification of shape in the socket is processed,

The feed path starting point is part socket first outside center line; Mill socket second outside first inflexion point from lighting cutter along center line; From this first inflexion point turn 90 degrees partially to second inflexion point to walk close to shape in the socket, the distance between first inflexion point and second inflexion point is: half of shape width and tolerance sum deducts the value of tool radius in the socket; Since second inflexion point shape in the socket is processed the 3rd inflexion point until first outside of getting back to part; To walk close to shape in another socket, the distance between the 3rd inflexion point and the quadrupole deflector point is from the 3rd inflexion point skew 90 degree to quadrupole deflector points: a times of the distance between first inflexion point and second inflexion point; Since the quadrupole deflector point shape in this socket is processed till second outside of part; Cutter lifting makes cutter get back to next axial stratification feed path starting point of first outside center line; Cutter is climb cutting to the processing mode of shape in the socket;

The 3rd step, circulate above-mentioned second step, shape machines in socket.

In order to guarantee the requirement of fineness, the processing tolerance of socket is 0.001mm.

Advantage of the present invention is:

Adopt this method, only need processing once just can accomplish the processing of shape in the socket part, not only shortened process time but also improved crudy, effect is remarkable, and is practical.

Description of drawings

Accompanying drawing 1 is the support shaft view among the embodiment.

Accompanying drawing 2 is the feed path sketch map of each layer, and wherein, 1 is the feed path starting point, and 2 is first inflexion point, and 3 is second inflexion point, and 4 is the 3rd inflexion point, and 5 is the quadrupole deflector point, and 6 is the cutter lifting point.

Accompanying drawing 3 is the feed path sketch map of embodiment.

The specific embodiment

Below be a specific embodiment of this method:

The part that will process in the present embodiment is a support, requires jack part width 50mm, and the socket height is 142.388mm, therefore selects for use ￠ 32R5 milling cutter to process, and cutter length is 150mm, and the outstanding output of cutter is 145mm, can satisfy the requirement of socket height.After radial path was set and woven, setting shaft was to hierarchical path again.

According to this socket height, set every layer of cutting 0.5mm, be divided into 304 axial stratifications.Process to one deck wherein is following: feed path starting point 1 is part socket first outside center line; Mill socket second outside first inflexion point 2 from starting point 1 cutter along center line; From this first inflexion point 2 turn 90 degrees partially to second inflexion point 3 to walk close to shape in the socket, the distance between first inflexion point 2 and second inflexion point 3 is: 16.715mm; Since second inflexion point 3 shape in the socket is processed the 3rd inflexion point 4 until first outside of getting back to part; To walk close to shape in another socket, the distance between the 3rd inflexion point 4 and the quadrupole deflector point 5 is: 33.43mm from the 3rd inflexion point 4 skews 90 degree to quadrupole deflector points 5; Since quadrupole deflector point 5 shape in this socket is processed till second outside of part; Put 6 cutter liftinves from cutter lifting, make cutter get back to next axial stratification feed path starting point of first outside center line; Cutter is climb cutting to the processing mode of shape in the socket.Use the said method circulation that all 304 axial stratifications are processed, promptly accomplish the processing of this socket part.

Through the radially feed path of setting certainly and axial machining path, the part jack part that processes only needs processing once just can machine.Through calculating cutter and the requirement of part socket width accuracy, the machining path tool track of the setting that provides establishment is for the processing tolerance that requires socket that guarantees fineness is 0.001mm like this.This method field machining is effective, reaches the requirement of socket part quality fully.

Claims

1. processing method of rotating shape in the socket part is characterized in that this method may further comprise the steps:

The feed path starting point is part socket first outside center line; Mill socket second outside first inflexion point from lighting cutter along center line; From this first inflexion point turn 90 degrees partially to second inflexion point to walk close to shape in the socket, the distance between first inflexion point and second inflexion point is: half of shape width and tolerance sum deducts the value of tool radius in the socket; Since second inflexion point shape in the socket is processed the 3rd inflexion point until first outside of getting back to part; To walk close to shape in another socket, the distance between the 3rd inflexion point and the quadrupole deflector point is from the 3rd inflexion point skew 90 degree to quadrupole deflector points: two times of the distance between first inflexion point and second inflexion point; Since the quadrupole deflector point shape in this socket is processed till second outside of part; Cutter lifting makes cutter get back to next axial stratification feed path starting point of first outside center line; Cutter is climb cutting to the processing mode of shape in the socket;

The 3rd step, circulate above-mentioned second step, shape machines in socket.

2. a kind of processing method of rotating shape in the socket part as claimed in claim 1 is characterized in that the processing tolerance is 0.001mm in this method.