Grinding machine equipment for grinding internal surface of column

Abstract

The invention discloses grinding machine equipment for grinding the internal surface of a column. A machine head comprises a motor gear transmission system and a control system; a machine body comprises a first guiding rail and a second guiding rail; a feeding mechanism comprises a leading screw with external threads and a kinematic pair with internal threads, wherein the kinematic pair is sleeved on the leading screw by meshing the internal threads and the external threads; the feeding mechanism is also provided with a structure capable of moving forward and backward relative to processed pieces in a radial direction; a cutter lever mechanism comprises a grinding wheel frame and grinding wheels; a cooling liquid mechanism mainly comprises a liquid supply pipe and a liquid storage pool; roller frames comprise rollers and brackets, wherein the rollers are pivoted in the brackets; water liquid is stored in the brackets; the surfaces of the rollers are in contact with the water liquid; the first guiding rail and the second guiding rail are respectively provided with at least two roller frames at intervals; and the processed pieces are arranged on the surfaces of the rollers. The embodiment can ensure level internal surfaces of the processed pieces and uniform wall thickness, enhance roller movement precision, enable a paper making machine to stably run in a papermaking process, effectively enhance paper making quality and reduce machine maintenance cost.

Description

technical field [0001] The invention relates to a grinder device, in particular to a grinder device for grinding the inner surface of a cylinder. Background technique [0002] Grinding of cylindrical inner surface of parts When the size of the axial direction of the parts is large, it is difficult or impossible to grind the cylindrical inner surface. Grinding the cylindrical inner surface refers to the grinding of the cylindrical inner surface of the parts with an inner diameter of Φ600mm or more and an axial dimension of 6000mm (maximum 10000mm), in order to obtain a cylindrical inner surface with a certain processing accuracy. The machining accuracy of the cylindrical inner surface by a lathe or boring machine is lower than that of grinding, and the axial dimension of the cylindrical inner surface by a turning machine or a boring machine is relatively small. For iron and steel parts that require high machining accuracy, or cylindrical inner surfaces that cannot be process...

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 the centrifugal casting stainless steel roller, after rough machining after casting, it is found that there are sometimes defects on the inner surface of the roller near both ends. After repairing and drilling, the inner surface is uneven and deformed, resulting in unbalanced movement and vibration during the rotation of the fixed axis of the roller.

Moreover, the unevenness and deformation of the inner surface will affect the internal fluid movement

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

This vibration can also have adverse effects on paper quality and increase maintenance costs

[0004] Even so, the domestic manufacturing industry has not completed the grinding processing equipment for the cylindrical inner surface of Φ600mm or more and the axial dimension of 6000-10000mm.

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