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Principles for drafting process routes for mechanical processing
07-28
The principles of formulating process routes for machining and the formulating of machining process specifications can be roughly divided into two processes. The first step is to formulate the process route for parts processing, and then determine the process standards, equipment and process equipment used, cutting standards, working hours quota, etc. for each process. These two processes are interrelated and should be analyzed comprehensively.
The formulation of the process route is to formulate the overall layout of the process. The first task is to select the processing method of each surface, determine the processing order of each surface, and the number of processes in the entire process.
General guidelines for formulating process paths - the editor of Shanghai Machinery Processing Factory will explain them to us one by one:
Shanghai machinery processing manufacturer
1. Process the datum plane first
During the processing of parts, the surface as the positioning reference should be processed first to provide a precise reference for subsequent processing as soon as possible. It's called "baseline first."
2. Distinguish the processing stages
Surfaces with high processing quality requirements are divided into three stages: rough machining, semi-finishing and finishing. The main purpose is to ensure the processing quality; to facilitate the rational use of equipment; to facilitate the organization of the heat treatment process; and to facilitate the detection of blank defects, etc.
3. Face first, then drill
For parts such as boxes, brackets and connecting rods, the planes should be machined first and then the holes should be machined. In this way, the hole can be processed in a plane position, ensuring the position accuracy of the plane and the hole, and making it easier to process the hole on the plane.
4. Finishing processing
The main surface finishing processing of the workpiece after finishing processing (such as grinding, honing, fine grinding and rolling processing, etc.) should be carried out in the final stage of the process. The surface finish after processing should be above Ra0.8um, and there should be no slight bumps. It will damage the surface. In Japan, Germany and other countries, after finishing processing, flannel must be used for protection. It is absolutely forbidden to touch the workpiece directly with hands or other objects to prevent the surface of finishing processing from being damaged due to transfer and installation between processes. got damage.
Advantages of mechanical processing heat treatment
2023-11-27
When machining parts, the corresponding heat treatment process can be carried out first, which can greatly enhance the precision and service life of the parts. This will help to improve the hardness, wear resistance and strength of the machined parts. Mechanical processing is a processing technology that uses machine tools to process parts. So how to perform heat treatment on mechanical parts? Mechanical processing will carry out corresponding heat treatment processes before and after parts are processed.
Precautions for safety in CNC machining
2023-11-27
Parts refer to individual inseparable parts in machinery. They are the basic components of the machine and the basic unit in the machinery manufacturing process. Its manufacturing process generally does not require assembly processes. Such as bushings, bearing bushes, nuts, crankshafts, blades, gears, cams, connecting rod bodies, connecting rod heads, etc. To put it simply, non-standard parts are parts that do not have certain standards. Crafting custom parts is easier than standard parts. And it won't be that complicated. Everyone knows that improper operation in CNC machining will cause certain harm to the operator. Therefore, when we use CNC machining to process non-standard parts, we must strictly abide by the operating rules to ensure safety. Specific attention should be paid to the safety of CNC machining. The matters are as follows:
What technical requirements need to be followed during machining?
2023-11-27
In terms of mechanical processing skills in Shanghai, only by adhering to these technical requirements can the processed products be more standard and reasonable. The detailed technical requirements are as follows: