Special fixture for processing outer circle of long-cylinder part

A technology for special fixtures and parts, which is applied in the field of special fixtures for cylindrical processing of long cylindrical parts, can solve problems such as difficult control of machining accuracy, achieve high centering accuracy and improve versatility

Active Publication Date: 2013-08-21
XINYU IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another way of positioning and clamping is to use tapered sleeves for positioning and clamping at the two ports of the inner circle of long cylindrical parts. This positioning and clamping method will affect the quality o...

Method used

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  • Special fixture for processing outer circle of long-cylinder part
  • Special fixture for processing outer circle of long-cylinder part
  • Special fixture for processing outer circle of long-cylinder part

Examples

Experimental program
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Effect test

Embodiment

[0015] Examples: A preferred embodiment of the present invention is as follows, such as Figure 1 to Figure 4 As shown, a special fixture for external processing of long cylindrical parts is composed of the following components. The mandrel 1 is one piece, the shaft sleeve 9, the tapered sleeve 2 and the guide sleeve 3 are each two pieces, and the top block 4 is eight pieces. The ring spring 6 is two pieces, the set screw 7 is eight pieces, and the lock nut 5 is four pieces. The guide sleeve 3 has a large and small end structure, and its small end is fixed on the mandrel 1 by four set screws 7. At least one set of through holes is symmetrically provided on the large end sleeve of the guide sleeve 3. In this embodiment, two sets of four Through hole. The top block 4 is installed in the through holes. The outer end of the top block 4 is a curved surface, the inner end of the top block 4 is provided with a tapered surface, and the curved outer end is also radially provided with ...

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PUM

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Abstract

The invention relates to a machining fixture, and discloses a special fixture for processing an outer circle of a long-cylinder part. Guide sleeves, taper sleeves and lock nuts are mounted at the two ends of a central spindle of the special fixture symmetrically and sequentially from inside to outside; the guide sleeves are in large-small end structures; the small ends of the guide sleeves are fixed with the central spindle by set screws; through holes are formed in casings at the large ends of the guide sleeves; ejection blocks are arranged in the through holes; cambered surfaces and grooves are arranged and formed at the outer ends of the ejection blocks; taper surfaces are arranged at the inner ends of the ejection blocks; cones of the taper sleeves eject the taper surfaces of the ejection blocks; and annular springs are mounted around the grooves of the ejection blocks. According to the special fixture, radial ejection block ejecting workpieces are added on the basis of axial clamping; radial motion during the processing of the outer circles of the workpieces is avoided; the centering precision is high; with the adoption of the matched design of the guide sleeves and the taper sleeves, and added shaft sleeves, centering clamping can be adjusted conveniently according to the length and an inner hole of the long-cylinder part; and the generality of the tool fixture for processing the outer circle of the long-cylinder part is improved.

Description

technical field [0001] The invention relates to a machining fixture, in particular to a special fixture for machining the outer circle of long cylinder parts. Background technique [0002] Cylindrical grinding and turning of long cylindrical parts usually use the mandrel + support ring to position and clamp the inner hole. The clamping structure of the mandrel + support ring used in the past is mostly one-to-one fixed: that is, long cylindrical parts with one length specification and inner hole can only be configured with one mandrel + support ring fixture according to the part design. Cylindrical grinding and turning of long cylindrical parts with different lengths and inner holes requires different corresponding mandrel + support ring fixtures, which makes an enterprise need to configure a lot of mandrel + support ring fixtures, which are large in number and inconvenient to manage , increased fixtures, high processing costs. Simultaneously, in order to assemble and disas...

Claims

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Application Information

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IPC IPC(8): B23B31/40
Inventor 叶华辉周素琪刘俊良张琪锋刘少荣
Owner XINYU IRON & STEEL CO LTD
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