Adjustable high accuracy rotating center

A technology of rotating top and height adjustment, which is applied in the direction of tailstock/top, turning equipment, toolholder accessories, etc., which can solve the problems of frequent replacement and easy loss of ball bearings, etc., achieve long service life, improve manufacturing level, and promote development Effect

Inactive Publication Date: 2008-01-23
深圳市乐华行模具有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an adjustable high-precision rotary center that can adapt to the wear of the bearing for compe

Method used

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  • Adjustable high accuracy rotating center
  • Adjustable high accuracy rotating center

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Embodiment Construction

[0021] As shown in Figures 1, 2, and 3, in the preferred embodiment of the high-speed and heavy-duty rotary top of the present invention, it includes a sleeve 10 whose appearance matches the standard machine tool tailstock hole, and is sleeved in the inner cavity 11 of the sleeve. The mandrel 20, and the main bearing 40 and the intermediate bearing 50 that position the mandrel 20 on the side wall 12 of the sleeve cavity.

[0022] The sleeve 10 of the rotary center includes an insertion end 13 inserted into the tailstock hole of the machine tool and a clamping end 14 close to the workpiece. The inner end 21 of the mandrel is inserted into the inner cavity 11 of the sleeve, and the outer end 22 protrudes from the sleeve 10 and is provided with a conical tip 23 for clamping the workpiece. The main bearing 40 and the intermediate bearing 50 are both sleeved on the mandrel 20, wherein the main bearing 40 is preferably a bearing with cylindrical rolling elements, so that the contact...

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PUM

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Abstract

The invention relates to an adjustable high accuracy turning finial, which comprises a sleeve, a core axle, a main bearing and a middle bearing. The main bearing is a piston pin bearing or a rolling needle bearing or a roller bearing. A taper lining with opening at side wall is arranged between the main bearing and the sleeve, the end of the sleeve is arranged with an adjustment end lid by thread connection. Because the main bearing adopts piston pin bearing or rolling needle bearing or roller bearing, and a taper lining is arrange between the main bearing and the inner cavity wall of the sleeve, after the main bearing is abrased, adjust the end lid to push the taper lining move inward, thus making up the gap between the main bearing rolling piece and the inner wall of the taper lining caused by abrasion; the invention doesn't need to replace bearing, and hasn't the problem of low assembly accuracy caused by replacing bearing, ensures the precision reliability of the whole finial, and can process work piece with high accuracy, has important meaning to promote the development of accuracy process technology and improving the manufacture level of the manufacture industry.

Description

technical field [0001] The invention relates to a machine tool accessory, and more specifically relates to a high-precision rotary center capable of adjusting and compensating. Background technique [0002] Rotary tops are widely used in various machine tools, especially the rapidly developing CNC machine tools. Existing CNC machine tools have the characteristics of fast speed and high precision requirements, which puts forward the same requirements for the workpiece clamping accessory of the rotary top. [0003] For a long time, the rotary center of most machine tools has been set on the tailstock of the machine tool, which usually includes a sleeve, mandrel, main bearing and intermediate bearing to locate the mandrel in the sleeve. Wherein, the intermediate bearing is positioned by the step provided on the sleeve and the mandrel, and the main bearing is positioned by the step provided on the mandrel and the end cover sealed at the end of the sleeve by threads, thereby mak...

Claims

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Application Information

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IPC IPC(8): B23B23/04
Inventor 刘文职
Owner 深圳市乐华行模具有限公司
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