Follower rest for hydraulic automatically centering, automatically compensating and surface rolling

Abstract

The invention provides a follower rest for hydraulic automatically centering, automatically compensating and surface rolling. Because three follower claw units enable workpiece to stress from three points, the three force forms a plane concurrent force system to achieve balance, thereby eliminating the shortcoming that the workpiece is easy to deform and bend caused by rolling by a single wheel. When the follower rest is used, the pressure is manually adjusted; and the too loose or too tight phenomenon of the common follower rest can be eliminated. When the diameter of the workpiece becomes little after turning, a hydraulic unit adjusts the pressure of the follower claw units to the workpiece so as to automatically compensate. When the surface size precision and the surface quality requirements of the workpiece are high, the hydraulic oil pressure is appropriately adjusted, so that three rolling wheels of the follower claw units simultaneously and evenly press the workpiece; the rotation of the workpiece drives the rolling wheels to rotate; and the follower rest rolls the surface of the workpiece during longitudinal moving. The follower rest provided by the invention has the functions of automatically centering, automatically compensating and pressing surface when the follower rest is used for turning an elongate shaft. The follower rest is convenient to use, high in stability and has relaxed requirements to tools.

Description

technical field [0001] The invention relates to a hydraulic automatic centering, automatic compensation and surface rolling tool rest, which is used for turning and processing slender shafts and belongs to the technical field of mechanical processing equipment. Background technique [0002] The tool rest is an auxiliary device for radially supporting the rotating workpiece. During processing, it moves along the axial direction of the workpiece together with the tool. With the development of precision manufacturing, more and more slender parts are processed with high precision requirements. However, when the slender parts with high surface roughness requirements have high friction and are easy to wear during processing, it becomes a technical problem to add lubricating oil. A Chinese patent with the application number CN200920276063.4 discloses a technical solution titled "Rolling Three-jaw Adjustable Heel Tool Rest". The scheme consists of a bracket, a C-shaped frame fixe...

AI Technical Summary

Problems solved by technology

The existing technical problem is that the solution does not disclose that it can be applied to the processing of different spindle speeds, does not disclose the exact surface roughness index, and cannot guarantee the accurate clamping force on the workpiece. If a manual clamping mechanism is used, it will There is the problem of inaccurate clamping force control. Under the condition of uneven force, the workpiece will obviously bend, which will reduce the machining accuracy.

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