Finish machining method for large parts difficult to cut

A technology for machining and difficult-to-cut parts, applied in the field of finishing of large and difficult-to-cut parts, can solve the problem of high processing cost, improve production efficiency, ensure product quality, and reduce machining errors.

Active Publication Date: 2011-05-18
HUBEI SANJIANG SPACE XIANFENG ELECTRONICS&INFORMATION CO LTD
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  • Abstract
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Problems solved by technology

The current approach is to continuously improve tool q

Method used

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  • Finish machining method for large parts difficult to cut
  • Finish machining method for large parts difficult to cut
  • Finish machining method for large parts difficult to cut

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[0015] The embodiments of the present invention will now be described with reference to the accompanying drawings, in which similar element numbers represent similar elements. As mentioned above, the present invention provides an adaptive compensation method for tool wear in the machining process. The adaptive compensation for tool wear is adopted to effectively reduce part errors due to tool wear and improve the machining accuracy and production efficiency of the parts.

[0016] The technical solutions of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Such as figure 1 As shown, the adaptive compensation method for tool wear in the machining process of this embodiment includes the following steps:

[0017] Step S101: Generate a part contour finishing track. Specifically, the contour finishing trajectory of the part can be compiled manually, or can be programmed by PRO-E (Parametric Technology Corporation-Engi...

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Abstract

The invention discloses a finish machining method for large parts difficult to cut, which comprises the following steps of: (1) generating a part profile finish machining track; (2) selecting a machining tool to perform finish machining on the part profile according to the part profile finish machining track; (3) measuring the part profile subjected to finish machining to obtain a machining errorcompared with a theoretical value of the part profile; (4) generating a new part machining track according to the machining error, wherein the new part machining track and the part profile subjected to finish machining are in mirror image relationship relative to the theoretical part profile; and (5) adopting another machining tool same as the machining tool, and performing finish machining on the part subjected to primary finish machining by adopting machining parameters same as those in the primary finish machining according to the new part machining track. In the method, tool wear adaptivecompensation is adopted, part errors generated due to tool wear are effectively reduced, and the part machining accuracy and production efficiency are improved.

Description

technical field [0001] The invention relates to the field of numerical control machining, in particular to a finishing method for large and difficult-to-cut parts. Background technique [0002] With the continuous improvement of technical requirements for model products, some difficult-to-cut materials are more and more widely used, and the machining accuracy requirements of parts are also getting higher and higher. At present, the machining of these parts is mainly completed by CNC machining. However, in the processing engineering of large workpieces of difficult-to-cut materials, due to the long processing time of workpieces, the process is difficult to control, and it is easy to cause workpiece shape and size errors due to continuous wear of tools. Through experiments, it is found that before the machining tool is scrapped, the error caused by the wear of the tool will cause the error between the theoretical machining value and the actual machining value of the part to be...

Claims

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Application Information

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IPC IPC(8): B23Q15/12B23Q23/00
Inventor 王晓兵王国营赵凯熊大成
Owner HUBEI SANJIANG SPACE XIANFENG ELECTRONICS&INFORMATION CO LTD
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