Centre device with various shapes of heads capable of being quickly replaced

Abstract

The invention relates to a centre device with various shapes heads capable of being quickly replaced. The center device comprises a lathe center handle and a head replacing part, wherein the lathe center handle comprises a handle part and a head part formed at the top end of the handle part, the head part is provided with a containing part, the head replacing part comprises an abutting seat part and a mounting part arranged at the top end of the abutting seat part, and the head replacing part is detachably arranged at the containing part in a concave-convex corresponding manner by virtue of the mounting part; according to the centre device, the head replacing part with multiple different shapes can be replaced on the lathe center handle, by only unscrewing a locking piece and passing through a sliding hole and a through hole to lock and loosen the head replacing part in a rotating manner without completely removing the locking piece, the head replacing part can be used for processed objects of different shapes, and the aims of high applicability, low cost and quickly replacing are achieved.

Description

technical field [0001] The invention relates to a thimble device processed by a lathe, in particular to a thimble device capable of rapidly replacing heads of various shapes. Background technique [0002] The existing lathe clamps the workpiece on the chuck of the main shaft, and the thimble on the tailstock of the lathe is pressed against the top center hole at the end of the workpiece. When the spindle of the lathe drives the workpiece to rotate and turn, the thimble can push Hold the end of the workpiece and rotate synchronously with the workpiece, so that the workpiece can rotate stably, and then use the tool to cut the rotating workpiece. [0003] General thimbles can be divided into fixed thimbles and movable thimbles, and movable thimbles can be divided into fixed movable thimbles and replacement movable thimbles, of which: [0004] Such as Figure 15 Shown is an existing fixed thimble 60, the fixed thimble 60 includes a centering handle 61, the centering handle 61 i...

AI Technical Summary

Problems solved by technology

[0011] In order to solve the problems that existing fixed thimbles or fixed movable thimbles have to be replaced with thimbles of different models and specifications, its applicability is low, the cost is high and the replacement speed is slow, the main purpose of the present invention is to propose a fast The thimble device that replaces the head of various shapes, which is combined with a replaceable head replacement part at the top of the core handle, can be used for workpieces of different shapes, without completely removing the locking piece, as long as the The locking piece is unscrewed and rotated to lock or loosen the head replacement part through the sliding hole and the perforation, and the head replacement part has a variety of shapes, which can be used in response to various shapes of processed objects to achieve high applicability , cost reduction and quick replacement

[0012] Also in order to solve the problem that the thimble head of the existing replaceable movable thimble is closely matched with the insertion hole with a taper, it is difficult to disassemble and replace, and it is easy to cause vibration due to wear and tear, and then affect the accuracy of processing. The secondary purpose of the present invention is to A thimble device that can quickly replace heads of various shapes is proposed, which can lock the thimble heads of different shapes in the accommodating part in advance to form replacement parts of heads of various shapes, which can be processed in response to various shapes As long as the locking piece is unscrewed and locked in a rotating manner through the sliding hole and the through hole, or the head replacement part can be loosened and replaced quickly, so as to achieve easy installation and disassembly and improve processing accuracy and efficiency

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