How to formulate a reasonable NC lathe processing process line:
In order to improve the production efficiency of NC lathe, we must first carefully analyze the parts processed by NC lathe and clarify the technical requirements of materials, structural characteristics and tolerance requirements, roughness and heat treatment of parts. Then, on this basis, a reasonable grinding process and a simple machining route are selected.
Development of processing technology: Generally speaking, some parts can have several different processes. The processing processes of parts are different, and there are often significant differences in production efficiency, processing cost and processing accuracy. Therefore, on the premise of ensuring the processing quality of parts, try to improve production efficiency, reduce production cost and formulate reasonable processing technology according to the specific situation of production.
Determination of processing route: correct and simple processing route is the basis to ensure processing quality and improve efficiency. When choosing the machining path of parts, we must follow the principle of determining the machining path in order to improve the production efficiency. The main principles for determining the processing route are: the processing accuracy and part surface roughness must be guaranteed, the efficiency is high, and the processing path should be as small as possible to facilitate the processing path. Programs can be reduced and tool downtime can be reduced. The numerical calculation must be simplified, the number of blocks is small, and the programming workload must be reduced. In addition, when determining the machining path, it is also necessary to consider the machining allowance of the workpiece and the rigidity of the lathe and tool, and determine whether it is one-way or multi-way to complete the machining. At the same time, it must be completed once in a single sub process, multi-directional processing and one-time processing. In this way, the number of times of assembling the workpiece can be reduced, and the operation and clamping time can be effectively shortened. In this way, the machining efficiency can be effectively improved and the position accuracy requirements of parts can be guaranteed.
There are many codes for programming CNC lathes in English, including X, Z, u and W. the x value indicates the movement of the command X axis up and down or front and rear axes. The Z value represents the Z axis. Motion command, these two commands are absolute value commands, and u and W are relative value commands of x-axis and z-axis respectively.