CN104439448A

CN104439448A - Numerical control machining method for part with non-open structure

Info

Publication number: CN104439448A
Application number: CN201410701813.3A
Authority: CN
Inventors: 唐臣升; 沙春鹏; 蔡森; 刘舒红; 于江; 王德生; 陶云泽; 康秋; 李研; 王玉娇; 马达
Original assignee: Shenyang Aircraft Industry Group Co Ltd
Current assignee: Shenyang Aircraft Industry Group Co Ltd
Priority date: 2014-11-28
Filing date: 2014-11-28
Publication date: 2015-03-25

Abstract

The invention relates to a numerical control machining method for a part with a non-open structure. The numerical control machining method comprises steps as follows: 1), an angle head and a cutter are selected according to the structure of a machined part, and the cutter, the angle head and a numerical control knife handle are sequentially mounted together and are not interfered with the machined part under the premise that the machining requirement is met; 2), the cutter, the angle head and the numerical control knife handle are sequentially mounted on a machine tool spindle; 3), parameters of the cutter, the angle head and mutual relation of the cutter and the angle head are measured and taken as compensating parameters for five-coordinate numerical control machining; 4), a preposition procedure for numerical control machining is designed according to data of a machined surface and cutter parameters; 5), the preposition procedure for numerical control machining is converted to a postposition procedure by special software by adopting data parameters in the step 3 and parameters of the angle head and a machine tool, and the machining process of the part is free from interference; and 6), numerical control machining of the part with the non-open structure is performed. With adoption of the numerical control machining method, the machined part has good machining accuracy, and the efficiency is high.

Description

A kind of numerical-control processing method of non-open design part

Technical field

The present invention relates to a kind of numerical-control processing method of non-open design part, belong to digital control processing field.

Background technology

Along with the development of Digit Control Machine Tool, Computerized Numerical Control processing technology is more and more universal.And current Computerized Numerical Control processing technology is only suitable for the part for open design, comprises band and close the open design at angle, and for the processing of non-open design part only for manual inefficient approximate processing, the quality of precision and surface to be machined far from.Therefore, a difficult problem urgently to be resolved hurrily during digital control processing for non-open design part.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of numerical-control processing method of non-open design part, and this numerical-control processing method adopts specific purpose tool to carry out digital control processing, makes the good processing accuracy of part to be processed, efficiency high.

For overcoming the above problems, concrete technical scheme of the present invention is as follows: a kind of numerical-control processing method of non-open design part, comprises the following steps:

1) according to part to be processed structure choice angle head and cutter, and cutter, angle head and numerical control handle of a knife are installed together successively, and ensure that cutter, angle head are not interfered mutually with numerical control handle of a knife and part to be processed under the prerequisite meeting the processing of non-open design part by numerical control;

2) by cutter, angle head and numerical control handle of a knife in order together be arranged on machine tool chief axis;

3) Tool in Cutting sword end face center is measured to the distance of the distance of angle head two crossing point of axes and angle head two crossing point of axes, angle head two crossing point of axes to numerical control knife arbor to the distance of datum level, and as the compensating parameter of Five Axis digital control processing;

4) data of surface to be machined and cutter parameters application universal numerical control machining prgraming Software for Design are gone out the preposition program of digital control processing, this preposition program is to process non-open design design of part;

5) adopt the angle of the data parameters in step 3 and angle head two axial lines, the machine tool chief axis radius of gyration and lathe shaft arrangement that the preposition program application specific software of digital control processing is converted into rearmounted program, ensure that the process of part processing is without interference;

6) rearmounted program is adopted to carry out digital control processing to non-open design part.

The numerical-control processing method of this non-open design part adopts the cooperation of cutter, angle head and procedure, solving current Computerized Numerical Control processing technology can not the processing problems of Directly solution open design part by no means, thus greatly improves crudy and the efficiency of non-open design part.

Accompanying drawing explanation

Fig. 1 is the front view of non-open design part.

Fig. 2 is the top view of non-open design part.

Fig. 3 is that the processing of non-open design part by numerical control uses cutter, angle head and numerical control handle of a knife to coordinate schematic diagram.

Fig. 4 is non-open design part by by position schematic diagram.

The wherein outline projection line of the non-open design part of 1-; 2-non-open design part Internal periphery projection line; The width of 3-non-open design part entrance; The length of 4-non-open design part entrance and Internal periphery; 5-non-open design part Internal periphery width; 6-numerical control handle of a knife; 7-numerical control end mill; 8-angle head; 9-angle head two crossing point of axes are to numerical control knife arbor to the distance of datum level; The angle of 10-angle head two axis; 11-angle head and numerical control handle of a knife coupling part cross section full-size; The sword of 12-numerical control end mill is long; 13-Tool in Cutting sword end face center is to the distance of angle head two crossing point of axes; 14-is the processed position of non-open design part embodiment.

Detailed description of the invention

As shown in Figure 1, Figure 2 and Figure 4, embodiment is a kind of part of non-open design, and processed position is as shown in blacking part in Fig. 4.The width of this non-open design part entrance is 45mm, and the entrance of non-open design part and the length of Internal periphery are 120mm, and the width of non-open design part Internal periphery is 125mm; The ISO50 numerical control handle of a knife of employing standard; The diameter of numerical control end mill is φ 6, and sword is long is 41mm; The angle of angle head two axis is 90 °, angle head two crossing point of axes to numerical control knife arbor to the distance of benchmark be 130mm, angle head and numerical control handle of a knife coupling part cross section full-size are 25mm, Tool in Cutting sword end face center is 71mm to the distance of angle head two crossing point of axes, and its concrete processing method comprises the following steps:

1) according to part to be processed structure choice angle head and cutter, and cutter, angle head and numerical control handle of a knife are installed together successively, and ensure under the prerequisite meeting the processing of non-open design part by numerical control, cutter, angle head are interfered mutually with numerical control handle of a knife and part to be processed, and wherein in Fig. 4, blacking part is working position;

2) by cutter, angle head and numerical control handle of a knife in order together be arranged on machine tool chief axis, as shown in Figure 3;

5) adopt the angle of the data parameters in step 3 and angle head two axial lines, the machine tool chief axis radius of gyration and lathe shaft arrangement that the preposition program application specific software of digital control processing is converted into rearmounted program, ensure that the process of processing parts is without interference;

Apply the numerical-control processing method of this non-open design part to process this embodiment part, solving current Computerized Numerical Control processing technology can not the processing processing problems of Directly solution open design part by no means, thus drastically increases crudy and the efficiency of this non-open design part.

Claims

1. a numerical-control processing method for non-open design part, is characterized in that comprising the following steps:

1) according to part to be processed structure choice angle head and cutter, and cutter, angle head and numerical control handle of a knife are installed together successively, and ensure that cutter, angle head are interfered mutually with numerical control handle of a knife and part to be processed under the prerequisite meeting the processing of non-open design part by numerical control;