Respectively adjustable center frame mechanism

Abstract

The invention discloses a respectively adjustable center frame mechanism which comprises a base and a lower support. The lower support is connected onto the base, two roller support arms are connected onto the lower support, a workpiece supporting roller is arranged at an end of each roller support arm, an upper support is connected with the lower support by a rotary shaft, a roller support arm is arranged on the upper support, a workpiece supporting roller is similarly arranged at an end of the roller support arm of the upper support, and the upper support and the lower support form an open frame body of a center frame after the upper support is fastened relative to the lower support. The respectively adjustable center frame mechanism has the advantages that a cutter can directly pass the center frame without being turned around or secondarily clamped during machining, accordingly, time and labor can be saved, and the work efficiency can be improved; workers can adjust the roller support arms 6 by means of turning hand wheels 4, the three roller support arms can be respectively adjusted, so that the three rollers can be assuredly simultaneously supported on a workpiece, the respectively adjustable center frame mechanism is good in workpiece stress bending control effect, and the machining precision can be improved.

Description

technical field [0001] The invention relates to a center frame mechanism, in particular to a separately adjustable center frame mechanism, which is used on a machine tool for processing long workpieces to support the middle part of the workpiece so as to control the bending of the long workpiece under force during processing. Background technique [0002] The existing center frame for machine tools includes a base connected to the bed, and a frame body of the center frame above the base. The inner end of the arm is equipped with rollers. When processing long workpieces, the steady rest mechanism is fixed in the middle of the guide rail of the machine bed, and the workpiece passes through the steady rest and is supported by three rollers on the steady rest to control the bending of the workpiece when it is processed. The center frame of this structure, because the frame itself is circular, the tool cannot pass through the center frame when it moves along the guide rail, and ...

AI Technical Summary

Problems solved by technology

The center frame of this structure, because the frame itself is circular, the tool cannot pass through the center frame when it moves along the guide rail, and it cannot be processed at one time. The rollers are adjusted at the same time. Due to installation errors, it is easy for the three rollers to not be supported in place at the same time, and the effect of controlling the bending of the workpiece is poor.

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