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Expansion device of brake disc bolt tightening machine

A technology of tightening machine and brake disc, applied in the direction of workpiece clamping device, manufacturing tools, metal processing, etc., to achieve the effect of strong practicability, reasonable structure, and precise center positioning

Pending Publication Date: 2020-07-28
HUBEI HEQIANG MACHINERY DEV LIMITED BY SHARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problem of insufficient existing technology, the present invention provides a brake disc bolt tightening machine expansion device, which has a reasonable structure, can accurately position the brake disc, and does not need to replace the nylon sleeve

Method used

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  • Expansion device of brake disc bolt tightening machine
  • Expansion device of brake disc bolt tightening machine
  • Expansion device of brake disc bolt tightening machine

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Experimental program
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Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Such as Figure 1 to Figure 9 As shown, the present invention discloses an expansion device for a brake disc bolt tightening machine. An expansion device 2 is arranged at the center of the working platform 1 of the tightening machine. The working platform is arranged on the base of the tightening machine. The working platform and the Guide rail guide grooves are set between the bases; the expansion device has a platen 3, and a rotary device 4 is arranged under the platen. The rotary device is composed of a motor 5 and a gear combination 6, and a support is provided under the rotary device Seat 7, there is an expansion cylinder 8 under the support, in order to facilitate the movement of the expansion cylinder, there is a walking groove on the base; the expansion cylinder is connected to the ejector rod 9, and the ejector rod passes through the support and the rot...

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Abstract

The invention discloses an expansion device of a brake disc bolt tightening machine. The expansion device is arranged in the center of a workbench seat of the tightening machine and is provided with atable plate, wherein a rotating device is arranged below the table plate and is formed by combining a motor and a gear; a support is arranged below the rotating device; an expansion air cylinder is arranged below the support and is connected with an ejector rod; the ejector rod penetrates through the support and the rotating device to enter the center of the table plate; a bearing, a conical topand an expansion seat are arranged on the upper portion of the ejector rod; a through hole is formed in the wall of the expansion seat; an expansion block is arranged in the through hole; a return spring is arranged on the expansion block in a ring mode; and a nylon sleeve is arranged on the expansion seat. The expansion device has the advantages that a brake disc can be accurately positioned in the center on the bolt tightening machine, the nylon sleeve does not need to be replaced due to different inner diameters of the brake disc, time and labor are saved, and dislocation caused by positioning deviation during nut tightening is avoided. The expansion device is reasonable in structure and high in practicability, and meets the requirement for automatic production.

Description

technical field [0001] The invention relates to a rail transit equipment machine, in particular to an expansion device for a brake disc bolt tightening machine. Background technique [0002] To tighten the bolts on the brake disc, the center hole of the brake disc must be tightened and positioned after the machine is installed, so that the bolts on the wheel can be tightened accordingly. At present, a nylon sleeve smaller than the central aperture of the brake disc is used for positioning. There are two problems. One is that the nylon sleeve itself is smaller than the inner diameter of the brake disc, and the positioning will be biased; the second is that the inner diameters of different brake discs are different. And changing the size of the nylon sleeve is time-consuming and labor-intensive. Contents of the invention [0003] In order to solve the problem of insufficient existing technology, the present invention provides a brake disc bolt tightening machine expansion d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06B25B11/02
CPCB23P19/06B25B11/02
Inventor 张霄喻国锋童俊军喻侃汪亮廖威祝朝亮
Owner HUBEI HEQIANG MACHINERY DEV LIMITED BY SHARE
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