Device and method for grinding convex circular-arc surface

Abstract

The invention provides a device and method for grinding a convex circular-arc surface. The device is composed of a fixed base arranged on an inner circle grinding machine, a slide supporting seat, a rotating block, retractable pipes, a clamp and a sand wheel, wherein the slide supporting seat is provided with a horizontally-arranged long groove hole; the slide supporting seat is connected with the fixed base through a T-shaped bolt which is arranged in the long groove hole in a penetrating manner; the rotating block is connected together with a rotating shaft which is arranged at the upper part of the slide supporting seat in a penetrating manner; two through holes are formed on the rotating block, and the axes of the through holes are vertical to the axis of the rotating shaft; the two retractable pipes are respectively arranged in the two through holes in a penetrating manner; the clamp is fixed at one ends of the retractable pipes; the sand wheel is opposite to a work piece fixed on the clamp; and a wheel shaft of the sand wheel is parallel to the rotating shaft. The distance between a work piece machining surface and the rotating shaft is adjusted to be equal to the sum of the radius of the convex circular-arc surface and the grinding amount, and the sand wheel is used for grinding. The device and method provided by the invention solve the problem of grinding the convex circular-arc surface of a large-radius work piece on the inner circle grinding machine, so as to expand the radius range of the ground convex circular-arc surface; and the structure is simple, and the manufacturing cost is low.

Description

technical field [0001] The invention relates to a device for grinding a circular arc surface of a workpiece, in particular to a device and a method for grinding a convex circular arc surface with an internal grinding machine. Background technique [0002] At present, the known method of grinding the convex arc surface is to mount the workpiece on the headstock of the cylindrical grinder through a fixture for grinding. Because the headstock is mounted on the grinder bed, the rotation range of the headstock spindle is limited by the grinder bed, and the maximum The grinding radius is the maximum radius of the spindle turning away, so that the workpiece whose radius is larger than the maximum turning radius of the spindle cannot be ground. The maximum grinding radius of the cylindrical grinder is limited by the grinding range of the machine tool, which is very limited. Blindly increasing the size of the cylindrical grinder to grind large-radius workpieces is not only expen...

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a device and method for grinding a convex arc surface on an internal grinding machine, which solves the problem of grinding a convex arc surface of a workpiece with a large radius, and the grinding range can be adjusted conveniently

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