What is the machining technology of shaft parts related to?
Shaft parts, it is one of the commonly used parts in the machine, is also a very important part, it can play a supporting role in the transmission parts, and can transmit torque.
The technical requirements and processing of shaft parts, for us, is to understand a large mechanical processing content, then what is its specific content? Then see it below.
The technical requirements of shaft parts are generally included in the following aspects:
1. Diameter accuracy and geometry accuracy
On the axis, the bearing axle journal and the matching axle journal are very important, its diameter accuracy is IT5-IT9 level, and the shape accuracy, should be controlled within the diameter tolerance, and its requirements are higher than the diameter accuracy.
Mutual location accuracy
If the axis is ordinary precision, then its radial circular beat, if you want to cooperate with the journal to support the journal, generally regarded as 0.01—0.03mm. While the high-precision axis is the 0.001—0.005mm. If there are special requirements, then it should be specified clearly.
2. Surface roughness
Because of the precision of the machine, running speed and other factors, the surface roughness requirements of the shaft parts are also different. The surface roughness of the bearing journal is 0.16—0.63um and the matching journal is 0.63—2.5um.
3. Material, rough work and heat treatment of the spindle
In the shaft parts, the commonly used material is 45 steel, and through the ignition, annealing, tempering and quenching treatment, so as to obtain a certain strength, hardness, wear resistance and toughness.
For the shaft parts with relatively high speed, the alloy structural steel can be selected, because it will improve the wear resistance and fatigue resistance after heat treatment.
The blank of the spindle is generally selected forgings and round steel, which can reduce the cutting amount, and can improve the mechanical properties of the material.
