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Automatic follow machining method of numerically controlled machine tool

A CNC machine tool and automatic follow-up technology, applied in the direction of digital control, electrical program control, etc., can solve the problems affecting the machining size and machining accuracy, frequent blade damage, complicated machining programs and PLC programming, etc., and achieve the effect of ensuring machining accuracy requirements.

Active Publication Date: 2011-06-01
NANJING CNC MACHINE TOOL
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Problems solved by technology

However, this method has the following disadvantages: when the support of the workpiece supporting mechanism below disappears, the deformation of the part will affect the processing size and processing accuracy; the blade is frequently damaged; when replacing the processed parts, the adjustment of the front and rear support mechanisms is cumbersome; the processing program and PLC programming complex

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  • Automatic follow machining method of numerically controlled machine tool
  • Automatic follow machining method of numerically controlled machine tool
  • Automatic follow machining method of numerically controlled machine tool

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Embodiment Construction

[0022] The present invention will be further described below in conjunction with the accompanying drawings.

[0023] A method of automatic follow-up processing using CNC machine tools figure 1 The schematic diagram of the structure of the machined parts is shown, and the setting of the tool and the direction of the tool is as follows: figure 2 shown. The length of the workpiece to be processed is 12000mm, the diameter is 200mm, and the ratio of shaft diameter to size reaches 60:1. The solid line is the ideal contour of the workpiece, and the dotted line is the curved contour of the workpiece. According to the point C of the workpiece center, the workpiece to be processed is divided into two sections for processing: A-C' section, which is recorded as a section; C'-B section, which is recorded as b section. The specific processing method is as follows:

[0024] (1) Write the processing main program according to the workpiece processing requirements, set the following accurac...

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Abstract

The invention discloses an automatic follow machining method of a numerically controlled machine tool. In the method, deformation displacement of a workpiece to be machined in the vertical direction is detected in real time by using a measuring device; an interruption subroutine is called according to the displacement; and a position of a cutter in the vertical direction is adjusted to guarantee the machining accuracy. By the automatic follow machining method of the numerically controlled machine tool provided by the invention, a follow workpiece supporting mechanism can be saved when long-axis parts are machined, so that the problem caused by supporting variation of the follow workpiece supporting mechanism is solved, and the machining accuracy requirement can be met.

Description

technical field [0001] The invention relates to a processing method of a numerical control machine tool, in particular to an automatic follow-up processing method of a numerical control machine tool for large long-axis parts. Background technique [0002] When machining long-axis parts with CNC machine tools, due to the large shaft-to-diameter ratio of the parts, the processing method of end-to-end clamping is generally used. However, due to the weight of the parts, there will be deformation at both ends in the horizontal direction, which will affect the processing size. and machining accuracy. In order to improve the accuracy of the machining size, the current method is to set the follower support in front of the tool, and set the front and rear two follow-up workpiece support mechanisms at the corresponding positions under the part. According to the actual position of the Z-axis during machining, it is controlled by the machining program programming. The front and rear fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/18
Inventor 赵文祥张志英赵义顺董元辉王斌陈慧
Owner NANJING CNC MACHINE TOOL
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