The machining of non-standard parts is a kind of high-efficiency and high-precision machine tool. The workpiece can be completed in a single clamping process. There is also a tool library to automatically change the tool function. The non-standard parts machining center can realize three-axis or three-axis linkage control, and the tool can process complex surface. In addition to the linear interpolation and circular interpolation functions, the non-standard parts machining center also has various processing fixed cycle, automatic compensation of tool radius, automatic compensation of tool length, processing chart display, man-machine dialogue, automatic fault diagnosis, offline programming and other functions.
Non standard parts processing
The processing center of non-standard parts is developed from CNC milling machine. The difference between CNC milling machine and machining center is that the machining center has the ability to automatically change the processing tools. Therefore, by installing different tools in the tool magazine, the processing tools on the spindle can be changed through the automatic tool changing device in one clamping process, so as to realize various processing functions.
1、 Parallelism requirement: the so-called parallelism requirement is the tolerance requirement around the workpiece. For example, for rectangular workpiece, the thickness of the four corners of the workpiece is required to reach a certain tolerance range when processing non-standard parts. If the thickness of the four sides can not meet the tolerance requirements, the parallelism requirements can not be met. It is necessary to readjust the workpiece. The problem may occur in the grinding machine suction cup, which is worn due to excessive use, resulting in parallelism error; it may also be that the grinding wheel is not well dressed, or the grinding wheel is cracked or chipped, and then the grinding wheel needs to be re grinded; it may be that the suction cup is not cleaned up, which requires cleaning the suction cup carefully; or it may be the workpiece It is not well trimmed and burr appears.
2、 Perpendicularity requirement: the so-called perpendicularity requirement is that the side and ground of the workpiece meet the tolerance requirements. Understanding is the cube, from the number axis, divided into XYZ three sides, generally requires XZ, YZ to meet the tolerance requirements. The error is also about the requirement of parallelism. Generally according to the requirements of parallelism on the line.
Non standard parts processing
3、 Other requirements. Such as: finish. It is required to achieve, such as mirror effect.
The role of non-standard parts processing in industrial production involves material, process, cost, quantity of use and other issues. Sometimes many parts can not be produced in large scale by machinery, and small-scale or small-scale non-standard parts processing is needed in the process, and manual work may also be involved in the process. Generally, CNC, rapid tooling, vacuum silicon re mold and other technologies are used to achieve a small amount of production.
