The CNC machining process refers to the relative path of the turning tool from the tool setting point (or the fixed origin of the machine tool) until it returns to this point and completes the processing procedure, including the relative path of drilling and the CNC blade Select, cut out and other non-drilling empty stroke arrangements relative path. Most of the feed route of the deep processing is carried out along the sequence of the part contours. Therefore, the focus of the work of clarifying the feed process is to clarify the feed process of the initial processing and the empty stroke arrangement.

CNC machining process

First:In machining center processing, the clarification of the processing process generally must comply with the following levels of standards.

1. It should be able to ensure the precision and roughness of the workpiece to be processed.
2. Make the processing process the most concise, reduce the empty travel schedule, and improve the processing efficiency.
3. Simplify the labor of numerical calculation methods as much as possible and simplify the processing procedure.
4. Assembler should be used for some program flows that are repeatedly used.

Second:CNC machining CNC blades should be clamped firmly and not too short in the elastic chuck.

Before each cable cutter, check whether the CNC machined cutter head meets the requirements. The cable cutter length should be established according to the in-depth manufacturing of the operation procedure sheet. Generally, it should be slightly better than the manufacturing depth of 2mm and the elastic clamp should be fully considered. Whether the head collides.

Third:When encountering a situation with a deep level of production and manufacturing.

You can communicate and communicate with the program flow writer, and use the method of two cable cutters as appropriate, that is, first obtain half to 2/3 of the length, and wait for the production to reach a deeper position. If it is longer, it can improve the production efficiency.

CNC machining process

Fourth:When using additional cable nozzles, especially in the deep level of the knife.

The necessary knife length and other data information should be grasped. Before the CNC machining cutter head is installed and operated on the machine, the smoothness of the cutter head is matched with each other. Use a cleaning towel to wipe it clean and tidy. The relative position of the cutter sleeve of the machining center is also cleared to avoid the iron pins of the matching cloth from damaging the accuracy and damaging the machining center.

Firth:The basic principle deviation of CNC machining is caused by the selection of similar machining motion modes or similar CNC blade contours.

It is often called the deviation of the basic principle of processing because of the deviation in the basic principle of processing. If the basic principle deviation is within the allowable range, this type of solution is still feasible. Manufacturing deviations, installation deviations and damage in machine tool applications immediately endanger the processing accuracy of the product workpiece. Among them, the key is the rotational movement of the lathe spindle, the uniform linear movement of the machine tool guide and the deviation of the machine tool transmission gear.

CNC machining process

Sixth:CNC machining includes standard misalignment relative error

The key to precise positioning deviation of CNC machining includes standard misalignment relative error and precise positioning secondary manufacturing deviation. When processing a product workpiece on a machine tool, be sure to select several geometric features on the product workpiece as the precise positioning standard in the production process. If the selected precise positioning reference is inconsistent with the design plan reference, there will be a reference non-pointing deviation. The precise positioning of the surface of the product workpiece and the precise positioning of the tooling and fixture components together produce a precise positioning pair.

The large part transformation of the product workpiece caused by the inaccuracy of the precision positioning pair production and the inter-coating gap between the precision positioning pair is called the precision positioning pair production and manufacturing inaccuracy deviation. The inaccurate manufacturing deviation of the precise positioning pair always occurs when the regression analysis method is selected, and it is not easy to appear when the tool radius compensation method is used.