Method for turning thin-wall steel jacket

Abstract

The invention provides a method for turning a thin-wall steel jacket, and belongs to the technical field of machining. The problems that existing thin-wall steel jacket workpieces are difficult to produce in batches, and progress cannot be guaranteed are solved. The method comprises the following steps that a mixture of 96% carbamide and 4% potassium nitrate is heated to 140 DEG C or above to prepare a self-coagulator, an inner hole of a workpiece is filled with the first batch of self-coagulator at a filling height of A, the inner hole of the workpiece is filled with a second batch of self-coagulator at a filling height of A after the first batch of self-coagulator is solidified, an upper end opening of the workpiece is covered with a rubber pad, the workpiece is turned by 180 degrees, the second batch of non-solidified self-coagulator is enabled to flow downwards, turning on an outer circle and the end face of the workpiece is performed after the second batch of self-coagulator are solidified, the workpiece is clamped by using a special clamp, and rough turning and finish turning on the inner hole of the workpiece are sequentially performed after clamping. The method is mainly used for batch machining on the thin-wall steel jacket.

Description

technical field [0001] The invention belongs to the technical field of mechanical processing, in particular to a method for turning thin-walled steel sleeves. Background technique [0002] Thin-walled steel sleeve refers to a thin-walled sleeve with only three dimensions: outer circle size, inner hole size, and length size, and the material is medium carbon steel. The wall thickness of thin-walled steel sleeve parts is very thin, and the radial rigidity is very weak. In the process of processing, it is affected by factors such as cutting force, cutting heat and clamping force, and is easily deformed. It is difficult to guarantee the roundness requirements and outer cylindricity requirements; it is difficult to guarantee the inner circle size requirements, inner roundness requirements, and inner cylindricity requirements of thin-walled sleeves; it is difficult to guarantee the coaxiality requirements of the inner and outer circles of thin-walled sleeves ensure. [0003] Ord...

AI Technical Summary

Problems solved by technology

[0010] However, increasing the margin of the inner hole of the thin-walled steel sleeve to solve the turning problem of the reference outer circle not only wastes raw materials, but also takes labor and time. The waste of mass production is astonishing. Turning the inner hole requires a lot of cutting times

Turning thin-walled steel sleeves on the faceplate can only solve the turning problem of large-diameter thin-walled sleeves, but cannot solve the turning problem of medium and small-diameter thin-walled steel sleeves.

When the inner hole and outer circle allowance of the thin-walled steel sleeve are normal, the three-jaw chuck cannot be used for clamping, and the turning problem of the reference outer circle cannot be solved.

Since there is no precise reference of the outer circle, the outer circle cannot be clamped with an open set, and the inner hole of the thin-walled steel sleeve cannot be turned; the outer circle cannot be clamped with a large arc-shaped soft claw, and the inner hole of the thin-walled steel sleeve cannot be turned; it cannot be clamped with a special fixture. Turning the inner hole of the thin-walled steel sleeve; even if it is turned, the coaxiality requirements of the inner and outer circles cannot be guaranteed at all

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