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Telescopic type spring centring device

A telescopic, top-end technology, applied in the direction of tailstock/top, turning equipment, toolholder accessories, etc., can solve problems such as stuck or broken top

Active Publication Date: 2012-12-05
常州宝隆冶金设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a telescopic spring tip that can solve the aforementioned problems in view of the problem that the tip is easily stuck or broken due to the thermal expansion of the workpiece during welding in the existing tip device described in the background art. device

Method used

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  • Telescopic type spring centring device

Examples

Experimental program
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Effect test

Embodiment Construction

[0015] refer to figure 1 A telescopic spring top device shown includes an outer casing 1, an inner bushing 2 and an inner core tip 3, a first table 11 is formed on the outer casing 1, and the left side of the first table 11 on the outer casing 1 is the outer casing head 4 , the right side of the first table top 11 is the rod part 5 of the outer casing 1, the inner bushing 2 is arranged in the outer casing 1, and the second table top 12 is formed on the left side of the first table top 11 on the inner bushing 2, and the left side of the second table top 12 is The inner liner head 6, the right side of the second platform 12 is the inner liner shaft 7, the inner core tip 3 includes the tip shaft 8, the tip head 9 and the conical tip 10, the head is Cylindrical, its outer surface is provided with a convex surface 13, a first bearing is arranged on the convex surface 13, a plane thrust bearing 15 is arranged between the right side of the convex surface 13 and the second table surfa...

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PUM

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Abstract

The invention discloses a telescopic type spring centring device which comprises a jacket, an inner lining, an inner centre and a strong spring, wherein the strong spring is in a compressed state, and the inner centre has a certain telescopic amount under pressure action. In the invention, the centre can be used for overcoming the problem that the centre is blocked or even damaged due to expansion caused by heat and contraction caused by cold when surfacing is carried out on a workpiece.

Description

technical field [0001] The invention relates to a clamping device, in particular to a retractable spring top device. Background technique [0002] When processing the shaft surfacing parts, the shaft parts are clamped on a similar ordinary lathe, one end is clamped on the bedside chuck, and the other end is supported by the top of the tailstock of the machine tool. During the rotation of the workpiece, the workpiece is used below Liquefied petroleum gas heating ensures that the temperature of the workpiece is kept between 380°C and 400°C, so that the surface of the workpiece can be surfacing. When the workpiece is heated, it will inevitably expand with heat and contract with cold. Usually, the workpiece is heated at 100°C, and the thermal expansion of the workpiece is 0.1mm. When the temperature reaches 400°C, the expansion is 0.4 mm. Since one end of the workpiece is firmly clamped by the chuck and the other end is firmly held by the tip, the expansion extends to both ends,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23B23/00
Inventor 崔利嘉祝庆丰
Owner 常州宝隆冶金设备制造有限公司