Company name: wuxi tianfeng metal products co. LTD
Address: no. 39, zhenze road, huazhuang street, economic development zone, wuxi city, jiangsu province (old factory area)
Address: no.210-2, chengnan road, wangzhuang industrial supporting area (new), new district, wuxi city, jiangsu province
Contact person: +86-1377 1199 895
Shaft forgings are generally free forgings for larger shafts. There is a kind of shaft forgings in free forgings. If you are interested in it, please come and have a look. Shaft parts processing
(1) function and structural features of shaft components
1, function: for supporting transmission components (gear, pulley, etc.), transmission torque, load, and installed on the spindle workpiece or tool with rotary accuracy.
2. Classification: according to the characteristics of its structural shape, shaft components can be divided into optical shaft, ladder shaft, hollow shaft and special-shaped shaft (including crankshaft, camshaft and eccentric shaft, etc.).
Type of axis: a) optical axis; B) hollow shaft; C) half shaft; D) ladder axis; E) spline shaft; F) cross shaft; G) eccentric shaft; H) crankshaft; I) CAM shaft.
According to the proportion of axis length and diameter, it can be divided into rigid axis (L/d < 12 = and flexible axis (L/d > 12).
3. Surface features: outer circle, inner hole, taper, thread, spline and transverse hole
(ii) main technical requirements:
1. Dimensional accuracy: the journal is the main surface of the shaft parts, which affects the rotary accuracy and working status of the shaft. The diameter accuracy of the shaft neck is usually IT6 ~ 9 according to its use requirements, and the precision shaft neck can reach IT5.
2. Geometric precision: the geometric precision of the shaft neck (roundness, cylindricity) should generally be limited within the range of diameter tolerance points.
3. Position accuracy: mainly refers to the coaxiality of the matching journal of the assembly drive relative to the supporting journal of the assembly bearing. Usually, it is expressed by the radial circle jumping of the matching journal against the supporting journal; According to the use requirements, the specified precision axis is 0.001 ~ 0.005mm, and the general precision axis is 0.01 ~ 0.03mm. In addition, the coaxiality of the inner and outer cylinder and the requirement of the verticality of the axial positioning end face and the axis line.
4. Surface roughness: according to the surface of the parts work location is different, can have different surface roughness value, such as the surface roughness of the common machine tool spindle bearing journal for Ra0.16 ~ 0.63 um, cooperate with the surface roughness of the shaft neck is Ra0.63 ~ 2.5 um, as the speed of machine and precision degree is high, the axial parts surface roughness value requirements will be smaller and smaller.