Turning equipment for cylindrical internal surface

Abstract

The invention discloses turning equipment for a cylindrical internal surface. The position of a machine body is fixed; a machine head is fixedly arranged on one end of the machine body and is providedwith a gear case; the power output end of the gear case is fixedly connected with a side vertical surface of a chuck plate; a central bracket, a fixing supporting seat and a sliding supporting seat are consequently arranged on the machine body away from the machine head; the central bracket is fixed on the machine body; one end of a processed piece is locked and arranged on the other side vertical surface of the chuck plate, and the other end of the processed piece movably penetrates through an inner ring of the central bracket; a sliding rail is fixedly arranged in the machine body; the sliding supporting seat linearly slides on the sliding rail; one end of a cutter transmission level is fixedly arranged on the sliding supporting seat; the fixing supporting seat is fixedly arranged on the machine body; and the other end of the cutter transmission level movably penetrates through the fixing supporting seat and is provided with a cutter processing device. After using the embodiment, the processed piece has uniform wall thickness and level internal surface, thereby effectively enhancing dynamic balance precision. Therefore, the invention reduces the vibration of a paper making machine, lowers noise and also enhances the quality of obtained paper.

Description

technical field [0001] The invention relates to a lathe device, in particular to a turning processing device for the inner surface of a cylinder. Background technique [0002] Turning of the cylindrical inner surface of the component is difficult or impossible to perform turning of the cylindrical inner surface when the axial direction of the component is large ~Φ800mm and axial dimension 8000~10000mm cylindrical inner surface turning. For steel parts, when drilling holes below Φ200mm, the axial dimension is generally within 3000mm. If U-turn drilling is allowed, it is also difficult to ensure the coaxiality of the cylindrical inner surface formed by two drillings. Also, some components require machining on one side only. The diameter range of the hole is much larger than that of the drilling machine when the boring machine is used to process the hole, but the length of the boring bar limits the depth dimension (that is, the axis direction dimension) of the machining hole...

AI Technical Summary

Problems solved by technology

After repeated tests, it was found that the reason for the increased vibration of the paper machine was that the inner surfaces of various rollers were not processed, resulting in uneven wall thickness of the rollers.

Especially for steel pipes with straight welded seams, there are often unevenness and deformation of the weld metal at the inner surface of the weld seam, resulting in unbalanced movement of the roller during fixed-axis rotation.

Under the condition of higher speed, the effect of centrifugal force is intensified, the impact force on the support structure is increased, and the vibration noise of the paper machine is increased.

This vibration has adverse effects on paper quality

[0004] Even so, the domestic manufacturing industry has been unable to complete the turning process of the cylindrical inner surface of Φ220~Φ800mm and the axial direction size of 8000~10000mm.

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