xiehe model

CNC processing technology is a very delicate process, and a little carelessness will lead to product failure, so we must pay great attention to the problems in the CNC processing process. Next, the CNC processing factory will briefly introduce the problems that need attention in the CNC processing process.

(1) Confirm the machining content of the CNC machining center, confirm the installation base surface, machining base surface, machining allowance, etc. of the workpiece, and organize the machining process with the intention of giving full play to the power of the CNC machining center.

(2) For messy parts, because of thermal deformation during processing, internal stress after quenching, and deformation of parts after being pressed, it is difficult to complete the entire process after one clamping. When you can consider two or more clamping.

(3) When organizing the processing procedures, the principle should be from rough to fine. First organize heavy cutting and rough machining, remove the machining allowance on the blank, and then organize the content that does not require high machining accuracy.

(4) Adopt a large flow cooling method. In order to reduce the influence of a large amount of heat generated during processing on the machining accuracy and improve tool durability, a large flow cooling method must be actively adopted.

Confirmation of the road to the CNC processing plant

CNC lathe feed processing path refers to the path that the turning tool moves from the tool setting point (or the fixed origin of the machine tool) until it returns to this point and ends the processing program, including the path of cutting processing and the non-cutting process such as cutting in and out of the tool. Empty travel path.

The feed path of finishing machining is basically carried out along the general order of its parts. Therefore, the key point of confirming the feed path is to confirm the feed path of rough machining and idle stroke.

In CNC lathe processing, the confirmation of the processing path generally follows the following guidelines.

① It should be able to ensure the precision and surface roughness of the workpiece to be processed.

② Make the processing route the shortest, reduce the idle travel time, and improve the processing efficiency.

③ Try to simplify the workload of numerical calculation and simplify the processing procedure.

④ For some repetitive programs, subroutines should be used.

Advantages and disadvantages of CNC processing plants:

CNC machining has the following advantages:

① The number of tooling is greatly reduced, and messy tooling is not required to process parts with messy shapes. If you want to change the shape and size of the part, you only need to modify the part processing program, which is suitable for new product development and modification.

②The processing quality is stable, the processing accuracy is high, and the repetition accuracy is high, which is suitable for the processing requirements of aircraft.

③In the case of multi-variety and small batch production, the production efficiency is high, which can reduce the time for production preparation, machine tool adjustment and process inspection, and the cutting time is reduced due to the use of the optimal cutting amount.

④ It can process complex profiles that are difficult to process by conventional methods, and even process some unobservable processing parts.

The disadvantage of CNC machining is that the cost of machine tools and equipment is expensive, and maintenance personnel are required to have a high level.