Analyze the technical requirements of spare parts processing, and use CNC lathes to complete the production
In the machine factory, when the customer submits the spare parts processing order, the CNC lathe processing can be used to complete the processing and production, but before processing and production, we should carefully analyze the technical requirements of the spare parts processing, and combine the structural characteristics of the parts. The machining process is initially outlined. The dimensional accuracy, surface roughness and heat treatment requirements of the machined surface of the parts determine the final machining method of the surface, and obtain the machining method used in the intermediate process and rough machining process.
1. Parts processing rotating body parts with particularly complex contours or difficult to control dimensions
Since the CNC lathe processing device has linear and circular interpolation functions, and some CNC lathe processing devices have some non-circular curve interpolation functions, it can complicate the rotating body parts composed of arbitrary straight lines and plane curved contours. Such as: cylinder, cone, cone, ball, etc.
2. The machining accuracy of spare parts is high
The accuracy requirements of spare parts processing mainly refer to the accuracy requirements of size, shape, position and surface. The machining surface accuracy of spare parts mainly refers to the surface roughness. For example, parts with dimensional accuracy up to 0.001 or less; cylindrical parts with high cylindricity; highly tapered parts with high linearity, roundness and inclination; machined surfaces with constant line speed cutting various variable diameter surfaces components with high precision requirements.
3. Rotary valve body parts with special threads
These spare parts are threaded parts with extra-large pitch, equal and variable pitch or smooth transitions between cylindrical and tapered thread surfaces.
4. Work hardening workpiece
In the machining of large-scale CNC lathes, there are many parts with large sizes and complex shapes. These spare parts have a lot of deformation after heat treatment and are difficult to grind. As a result, hardened parts can be turned on a CNC machine using a ceramic turning tool, and a car can be used to grind and increase machining efficiency.
5. Multi-variety, small batch production parts or new product trial production parts.
6. Parts with complex geometries.
7. Parts that must be machined in multiple processes during CNC lathe machining.
8. When processing with ordinary CNC lathes, expensive processing equipment (tools, fixtures and molds) is required.
9. CNC lathe processing must strictly control the tolerance, and the precision of the parts is very high.
10. The machining process design of spare parts requires several improved components.
11. Expensive key components are not allowed to be scrapped during processing.
12. Parts that require the shortest production cycle.
In the analysis of the structure of the parts processed by the parts, the structural features of the parts are formed according to the combination of different surfaces of the mechanical parts, and the processing methods and processing routes of the parts can be selected. For example, the outer surface is usually turned or ground; the inner bore surface passes through. Get machining methods such as drilling, reaming, reaming, boring and grinding.
