Straightening wheel fixing structure of straightening machine for shaft parts

The utility model belongs to the technical field of processing equipment of shaft parts, and discloses a straightening wheel fixing structure of a straightening machine of shaft parts, which comprises a main shaft (1) and ball bearings (3), the ball bearings are sleeved and fixed on the main shaft, the ball bearings are divided into two groups, the first group and the second group are arranged at an interval, and the main shaft (1) and the ball bearings (3) are fixed on the main shaft (1). Each group of ball bearings at least comprises three ball bearings, the three ball bearings cling to each other in the axial direction of the main shaft and are sequentially arranged, and the outer peripheral surfaces of the three bearings are unified to form a cylinder structure. According to the utility model, the maintenance cost of the main shaft can be reduced, and the correction precision of shaft parts is ensured. 本实用新型属于轴类零件的加工设备技术领域，公开了一种轴类零件的矫正机的矫正轮固定结构，包括：主轴(1)及滚珠轴承(3)，滚珠轴承套接固定在主轴上，所述滚珠轴承为两组，第一组与第二组之间间隔设置，每组滚珠轴承至