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Lathe spindle unit

A lathe spindle and spindle technology, which is applied to metal processing machinery parts, driving devices, metal processing equipment, etc., can solve the problems of poor spindle positioning effect, etc., and achieve the effect of reducing the yield of defective products, smooth transmission, and high transmission efficiency.

Inactive Publication Date: 2013-04-03
付艳丽
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problem of poor spindle positioning effect of existing devices, and provide a lathe spindle unit with good spindle positioning effect

Method used

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  • Lathe spindle unit
  • Lathe spindle unit
  • Lathe spindle unit

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Embodiment Construction

[0021] Below in conjunction with accompanying drawing description and specific embodiment, the present invention will be described in further detail:

[0022] see figure 1 , image 3 , a lathe spindle unit, comprising a main shaft 1, a front bearing 2 and a rear bearing 3 installed on the main shaft 1, a guide sleeve 4 and a spline part, the spline part includes a spline shaft 20 and a spline bearing outer casing 21, Both the main shaft 1 and the main shaft servo motor 14 are installed on the bearing housing 5, the main shaft 1 is provided with a push rod 6, the front end of the push rod 6 is fixed with a collet cover 7, and the collet cover 7 is provided with a collet 8, An elastic member 9 is provided between the chuck 8 and the chuck sleeve 7, and the end cover at the front end of the main shaft 1 presses the chuck 8 and the chuck sleeve 7 into the main shaft 1, and a main shaft positioning device is installed at the rear end of the main shaft 1 10. The main shaft positio...

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Abstract

The invention relates to a lathe spindle unit, which comprises a spindle, a front bearing and a rear bearing which are arranged on the spindle, a guide sleeve and a spline part, wherein the spindle is arranged on a bearing seat, a top rod is arranged in the spindle, a collet sleeve is fixed at the front end of the top rod, a collet is arranged in the collet sleeve, an elastic part is arranged between the collet and the collet sleeve, the rear end of the spindle is provided with a spindle positioning device, and the spindle positioning device comprises a positioning wheel, a positioning pin and a positioning cylinder. According to the lathe spindle unit disclosed by the invention, the positioning precision of the spindle is improved, the output rate of inferior-quality products is reduced, the production efficiency is improved, the temperature rise is low, and the influence on the precision of a processed product is small.

Description

technical field [0001] The invention relates to a spindle unit, in particular to a lathe spindle unit. Background technique [0002] In today's market, most of the spindles of CNC walking-axis turning and milling compound centers use electric spindles and sleeve-type spindles. The electric spindles of high-end machine tools are dominated by the Japanese. Based on their advanced servo motor technology, Fanuc and MITSUBISHI cooperate with NSK and other famous bearing companies to produce electric spindles with excellent performance, high speed up to 30,000 revolutions, precise angle positioning, and stable operation. In particular, Fanuc has almost monopolized the market of electric spindles for CNC lathes in China. However, the price of Japanese electric spindles supplied to the Chinese market is ridiculously high, as high as 180,000 yuan, and the delivery time is as long as three or four months, or even half a year. Small and medium machine tools are difficult to work wit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B19/02B23Q5/10
Inventor 付艳丽
Owner 付艳丽
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