Technical requirements for precision machining parts

1. Precision Machining Shaft Parts

1) Dimensional accuracy, the journal is the main surface of shaft parts, which affects the rotation accuracy and the working state of the shaft. The diameter accuracy of the journal is usually IT6 ~ 9 according to its use requirements, and the precision journal can reach IT5.


2) Geometric accuracy, journal geometric accuracy (roundness, cylindricity), generally should be limited to the diameter tolerance point range. When the accuracy of a geometric shape is required to be higher, the allowable tolerance can be specified on the part drawing separately.


3) In The machining position, the accuracy mainly refers to the coaxiality of the matching journal of the assembly transmission parts relative to the supporting journal of the assembly bearing, which is expressed by the radial circular runout of the matching journal to the supporting journal; According to the use requirements, the high precision axis is 0.001 ~ 0.005mm, and the general precision axis is 0.01 ~ 0.03mm. In addition, the coaxiality of the inner cylinder and the perpendicularity of the axial positioning end face and the axis line is required.


4) Surface roughness, according to the different working parts of the surface, there can be different surface roughness values; for example, the surface roughness of the spindle supporting the journal of an ordinary machine tool is RA0.16-0.63um, and the surface roughness of the matching journal is RA0.632.5um. With the increase of the machine running speed and the improvement of precision, The surface roughness of shaft precision machining parts will be smaller and smaller.




2. Sheet Metal Parts

1) Parallelism and perpendicularity between surfaces.


2) Surface roughness and accuracy.


3) the accuracy, verticality, and hole spacing requirements of the holes on the template.


4) Following the principle of "first hole behind," after the planing pin or milling of the plate, grinding the plane can improve the flatness of the plane and the parallelism of the upper and lower planes and make it easy to ensure the perpendicularity of the hole requirements.



https://www.tuofa-cncmachining.com/

评论

发表评论

此博客中的热门博文

Top CNC machining manufacturer from Shenzhen, China - Tuofa

图片
Are Precision CNC Machining Services Suitable for Industry? A CNC-based precision machining system is a great choice for manufacturing today because the design of CNC precision machining is conducive to modern manufacturing. We live in an age in which there is "custom" production. In the China the past, the majority of the manufacturing process was driven by high-production and a lack of focus on modifying the final product. However, the majority of manufacturing today is focused on a greater degree of customization. The Tuofa Precision CNC machining manufacturer This design philosophy demands an extreme amount of flexibility. The Precision CNC Machining process is engineered to provide higher precision and repeatability and shorter setups, short lead times, shorter inventoriesand complicated fixing. This kind of CNC Machining Services is utilized to manufacture components that are used in almost every modern market. It's also a great fit for the application of
阅读全文

Brass CNC Machining

图片
The Advantages of Brass CNC Machining Discussed Brass is a remarkable copper alloy that is being used for several machining applications and also has actually been utilized for a long time. It has become a considerable part of component production markets, owing to the distinctive benefits that it offers. Today, brass is CNC machined for creating parts like brass equipments, pipelines and fittings, bearing, flare suitable, as well as much more. These brass made components are utilized in applications like music instrument manufacturing, mechanical, vehicle, electrical, and so on. Brass CNC manufacturing offers multiple advantages over other metal CNC machining processes, which is why it is in demand. tuofa-cncmachining. com discusses the five advantages of CNC machining with brass. 5 Prospective Benefits of Brass CNC Machining The adhering to pointers will certainly help you understand why brass CNC machining never ever heads out of vogue. High-Speed Machining: Brass supplies
阅读全文