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Method for enlarging machine tool swing angle stroke by using composite swing angle

A technology of angular stroke and machine tools, which is applied in the direction of large fixed members, metal processing machinery parts, metal processing equipment, etc., can solve the problems of parts that cannot be processed, and achieve the effect of expanding the swing angular stroke

Inactive Publication Date: 2012-07-04
SHENYANG AIRCRAFT CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a certain joint part is to be processed on the above-mentioned five-coordinate vertical milling machine, the internal shape of the part is a ruled surface, the angle between the generatrix of the ruled surface and the Z-axis is 32°, and the coordinate system of the normal machining plan is established. At this time, five coordinates are required. The A-axis swing angle of the coordinate vertical milling machine is 32°, and the B-axis swing angle is equal to 0, which exceeds the stroke of the A-axis and B-axis swing angle of the five-coordinate vertical milling machine, and the part cannot be processed

Method used

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  • Method for enlarging machine tool swing angle stroke by using composite swing angle
  • Method for enlarging machine tool swing angle stroke by using composite swing angle
  • Method for enlarging machine tool swing angle stroke by using composite swing angle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] 1. Each coordinate axis during part processing

[0023] The coordinate axes of the RAMMATIC five-coordinate CNC milling machine are X, Y, Z, A, B, the parallel table is the X axis to the right (the direction cannot be determined), the forward is the Y axis, the vertical table is the Z axis, and it rotates around the X axis Angle A (who rotates around X), and angle B rotates around the Y axis. The RAMMATIC five-coordinate CNC milling machine itself determines the rotation of angle A based on angle B. In the process of part processing, the center point E of the cutting end face of the tool is the center of the tool, the line connecting C′E is the center line of the tool, that is, the tool axis, the direction of the center line is the direction of the tool axis, and the angle between the line C′E of the tool center line and the Z axis is the synthetic spindle swing angle α, such as image 3 shown.

[0024] 2. The relationship between the spindle swing angle and each coor...

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Abstract

The invention discloses a method for enlarging a machine tool swing angle stroke by using a composite swing angle. The method is characterized by comprising the following step of: building a coordinate of rotating a part at an angle Phi, wherein the value of the angle Phi is calculated according to the following formula that Phi is more than or equal to arccos[1 / (31 / 2tgalpha)] and less than or equal to arcsin[1 / (2sinalpha)], and angles A and B are calculated according to the following formulas that A is equal to arcsin(sinPhisinalpha)B is equal to arctg(cosPhitgalpha). The method has the advantage of enlarging the swing angle strokes of a shaft A and a shaft B of a five-axis vertical milling machine.

Description

technical field [0001] This method is used to expand the machining swing angle of the machine tool. Background technique [0002] The range of utilization of the composite pendulum angle is limited to obtain the maximum line cutting pendulum angle, in order to improve the processing efficiency and the surface quality of the parts. [0003] In mechanical processing, the coordinate system is usually established with the machining datum as the first element, which can usually meet the processing requirements of some parts on the machine tool, but some parts have local closed corners when they are processed by five-coordinate vertical milling machines and five electric linkages. Single-axis swing angle overtravel. For example, for the five-coordinate vertical milling machine of the RAMMATIC model, the single swing angle travel of the A and B axes is ±30°. When the five axes are linked, the A-axis swing angle is based on the B-axis swing angle. When a certain joint part is to b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23Q1/25
Inventor 张承冰张弛
Owner SHENYANG AIRCRAFT CORP