Method for quickly establishing numerical control machining coordinate system

Abstract

The method comprises the steps that a square box is installed at a determined position of a numerical control machine tool, the square box is provided with a plurality of hole sites which are regularly distributed, and each hole site has a determined coordinate position; a positioning clamping hole site matched with the hole site of the square box is machined in the blank according to the hole site of the square box; selecting a specific corresponding hole site on the square box according to the positioning and clamping hole site of the blank; a quick clamping device is fixedly installed at the selected hole position of the square box; and the blank is fixed with the quick clamping device through a positioning clamping hole in the blank. According to the method, the processes of design, numerical control programming, workshop system establishment and the like are cooperatively considered, the position of a sample piece in a machine tool is stipulated, a sample piece blank is fixed through cooperation of a rapid clamping device and a square box, the purpose of fusing the system establishment process and the clamping process is achieved, the process of establishing a machining coordinate system through numerical control machining is greatly simplified, and the machining efficiency is improved. And the working efficiency is improved, and part scrapping caused by system building errors is reduced.

Description

technical field [0001] The invention relates to the technical field of numerical control machining, in particular to a method for rapidly establishing a numerical control machining coordinate system. Background technique [0002] The NC machining of non-batch parts inevitably requires the step of establishing a machining coordinate system. The existing method of establishing a system is time-consuming and labor-intensive, and a slight negligence may lead to errors in system establishment, resulting in the scrapping of the entire part. [0003] During the current CNC machining of non-batch parts, there are roughly the following methods for clamping: adhesive or magnetic fixation; clamping by mechanical devices such as pressure plates and vices; clamping by hydraulic or pneumatic fast clamping devices. [0004] The system building methods can be roughly divided into the following two categories: [0005] According to the features of the blank (plane, processed feature void, c...

AI Technical Summary

Problems solved by technology

[0007] The above two methods of establishing the machining coordinate system must be measured by the equipment probe, and then converted to the machining coordinate system. The difference is that the first method is to dot the characteristics of the blank, which is affected by the accuracy of the blank feature and the accuracy of the system is low.

The second method is to dot the characteristics of the quick clamping device. Although the accuracy has been improved, the process of establishing the system is still complicated, time-consuming and error-prone

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