A Wide Range Adjustable Steady Frame of Machining and Cutting Machine Tool

Abstract

The invention discloses a center frame of a machining and cutting machine tool with a wide range of adjustment, which includes a mounting seat (8), a center frame body (9) is arranged on the mounting seat (8), and a center frame body (9) is uniformly arranged on the center frame body (9). There are three draw-in slots (12), and a fixing bolt (13) is arranged on the side wall of each draw-in slot (12), and an adjustment cylinder (10) is installed in each draw-in slot (12), and the three adjustment cylinders (10) One end located inside the center frame body (9) is equipped with a top wheel. The invention converts the friction force between the workpiece and the center frame body into rolling friction force, which reduces the situation of the workpiece being locked. At the same time, through the drive of the turntable, the force between the top wheel and the workpiece can be adjusted, so that the workpiece The force is uniform, and the relative positional relationship between the adjustment cylinder and the center frame body can be changed through the fixing bolts on the card slot, so that the use range of the center frame of the same model is increased.

Description

technical field [0001] The invention relates to an auxiliary device in the process of machining and cutting, in particular to a center frame of a machining and cutting machine tool which can be adjusted in a wide range. Background technique [0002] In the machining industry, especially in the machining of slender workpieces, steady rests are often used. The center frame is an auxiliary device for radially supporting the rotating workpiece during processing. When processing slender shaft parts, the length-to-diameter ratio L / D>15, in order to prevent the workpiece from being bent and deformed by the radial cutting force, it is commonly used The steady frame is used as an auxiliary support to increase the rigidity of the workpiece. During processing, there is no relative axial movement with the workpiece. The steady frame should be fixed on the bed, and the center frame should be roughly aligned with a needle. After lubricating oil is applied, the bed rotates at a low spe...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a center frame of machining and cutting machine tools with wide range adjustment, which overcomes the difficulty in adjusting the force of the current center frame when clamping the workpiece, which easily leads to the loosening of the workpiece and the ellipse of the end surface of the workpiece or the lock caused by excessive force The problem, and the problem of the small adjustment range of the conventional steady frame

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