CNC machining processing principle, processing route, and shortest feed route type and realization method

CNC machining refers to a process method for processing parts on a CNC machine tool. The process procedures of CNC machining machine tool processing and traditional machine tool processing are generally consistent, but significant changes have also taken place. So what are the machining principles of CNC machining, the type of machining route and the shortest feed route, and how to implement it? Let's take a look together next.

Here is the content list:

CNC machining processing principles

CNC machining route

The type and realization method of the shortest feed route of CNC machining

CNC machining processing principles

⑴ The processing of the last process of CNC machining can not affect the positioning and clamping of the next process.

⑵ CNC machining first inside and then outside, that is, the inner cavity (inner hole) is processed first, and then the outer shape is processed.

⑶ The process of machining with the same installation or using the same CNC machining tool should be carried out continuously to reduce errors caused by repositioning or tool change.

⑷ In the same installation, the CNC machining process which has less influence on the rigidity of the workpiece should be carried out first.

CNC machining route

The CNC machining lathe feed processing path refers to the path of the CNC machining turning tool moving from the tool setting point to returning to this point and ending the processing program, including the cutting processing path and the tool cutting person, cutting out, and so on. The feed path of precision CNC machining is executed sequentially along its part contour. Therefore, the focus of determining the feed path of precision CNC machining is to determine the feed path of rough machining and idle stroke.

In precision CNC machining lathe processing, the determination of the processing route generally follows the following principles.

(1) Precision CNC machining should be able to ensure the accuracy and surface roughness of the workpiece to be processed.

(2) Precision CNC machining makes the processing route the shortest, reduces the idle travel time, and improves the processing efficiency.

(3) Try to simplify the workload of numerical calculation and simplify the precision CNC machining program.

(4) For some reusable programs, precision CNC machining subroutines should be used.

Make the precision CNC machining program have the shortest feed route, which can not only save the execution time of the entire machining process but also reduce some unnecessary CNC machining tool consumption and the wear of the sliding parts of the machine tool feed mechanism.

The type and realization method of the shortest feed route of CNC machining

The shortest cutting feed path for CNC machining. The shortest CNC machining cutting feed path can effectively improve production efficiency and reduce CNC machining tool loss. When CNC machining arranges the shortest cutting feed route, it must also ensure the rigidity and processing technology of the workpiece.

The step cutting feed path of CNC machining with a large margin. Two cutting feed routes for blanks with too much margin are listed. It is the wrong step-cutting route.

Continuous cutting feed path of CNC machining. CNC machining can arrange one-cut or multi-cut finishing processes. The finished contour should be continuous CNC machining during the last cutting. At this time, the forward and retreat positions of the tool should be selected appropriately. Try not to arrange cutting out or tool changing pauses in a continuous contour to avoid sudden changes in cutting force. And destroy the process balance of the CNC machining system. Scratches, shape changes, or retained tool marks are caused by the contour of the part.

Special CNC machining feed route. In CNC machining turning processing, under normal circumstances. The longitudinal feed of the CNC machining tool is along the negative direction of the coordinate, but sometimes it is unreasonable to arrange the feed path in the negative direction of the normal, and it may even damage the workpiece.

JOC Machinery Co., Ltd. was founded in the year 2000, specializing in foreign trade of machinery parts and complete sets of equipment. The above is about CNC machining processing principles, processing routes, and shortest feed route types, and implementation methods. If you are interested in CNC machining services, CNC machining center, CNC machining china, and custom CNC machining, you can contact us, our website is http://www.jocmachinery.com. I look forward to your coming and hope to cooperate with you.