Hub unit double-channel double-raceway universal full-automatic three-axis grinding machine

Abstract

The invention discloses a hub unit double-channel double-raceway universal full-automatic three-axis grinding machine which comprises a grinding part, a three-axis moving part and a fixed unit; the fixed unit comprises a mounting frame, at least three first connecting blocks and second connecting blocks, and the outer walls of the lower half portions of all the first connecting blocks are in an inclined state and sleeved with first moving rings; the outer walls of the upper half portions of all the second connecting blocks are in an inclined state and sleeved with second moving rings, the mounting frame is further provided with a first driving assembly driving all the first connecting blocks at the same time and a second driving assembly driving all the second connecting blocks at the same time, all the first connecting blocks or all the second connecting blocks move to drive the first moving rings or the second moving rings to move up and down; and a first groove is formed in the top face of each first connecting block, a second groove is formed in the top face of each second connecting block, an inner positioning part and a first spring are arranged in each first groove, the inner positioning parts are matched with second concave blocks and the first springs to ascend and descend, an outer positioning part ad a second spring are arranged in each second groove, and the outer positioning parts are matched with first concave blocks and the second springs to ascend and descend.

Description

technical field [0001] The invention relates to bearing processing equipment, in particular to a universal full-automatic three-axis grinding machine with double grooves and double raceways for a wheel hub unit. Background technique [0002] Bearings are the most important parts in hub units, and grinding, as a finishing process, is an indispensable process in bearing processing. For the inner ring and outer ring of the bearing, after the rough machining process of cutting is completed, the inner wall, outer wall, and end face need to be polished to improve precision. Especially in double groove double raceway bearings, the surface with grooves and raceways. In the existing processing process, the grinding of the inner wall and the outer wall are generally carried out separately, because when the inner wall is polished, it is generally fixed by a groove tooling and the outer wall of the workpiece, so the outer wall cannot be polished. Similarly, When grinding the outer wal...

AI Technical Summary

Problems solved by technology

In the existing processing process, the grinding of the inner wall and the outer wall are generally carried out separately, because when the inner wall is polished, it is generally fixed by a groove tooling and the outer wall of the workpiece, so the outer wall cannot be polished. Similarly, When grinding the outer wall, it is generally fixed by cylindrical convex tooling and the inner wall of the workpiece, so the inner wall cannot be polished

The grinding of the inner wall and the outer wall are carried out separately, adding a grinding equipment, which reduces the efficiency and increases the production cost

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