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Expansion fixture suitable for blank surfaces

A technology of expansion clamps and blank surfaces, which is applied in the field of expansion clamps, can solve the problems of inability to adapt to the needs of workpieces with various inner diameters, poor processing, and cumbersome fixture manufacturing.

Inactive Publication Date: 2015-03-25
CHANGZHOU YINBAO NICKEL NETWORK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the outer circle cannot be clamped according to the processing requirements, and the inner hole is a blank surface, it is not suitable to use an expansion sleeve. When using three jaws to expand the workpiece, the three jaws are too short, and the workpiece is long and poor in rigidity. The processing and manufacturing of the fixture is cumbersome, and it can only be used once, which cannot meet the needs of workpieces with various inner diameters

Method used

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  • Expansion fixture suitable for blank surfaces

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0014] like figure 1 , an expansion fixture suitable for the blank surface, including a flange 1, a mandrel 2 fixed in the center of the flange 1, a cage 3 connected to the flange 1 by bolts, and the cage 3 is along the circumference A plurality of sliders 4 are evenly distributed in the direction, pads 5 are fixed on the sliders 4, and a conical expansion sleeve 6 is provided between the cage 3 and the mandrel 2, and the conical expansion sleeve 6 is closely connected with the slider 4 A spring 10 is connected between the front end of the conical expansion sleeve 6 and the flange 1 , and the end of the conical expansion sleeve 6 is provided with a fastening nut 7 sleeved on the mandrel 2 .

[0015] A rear cover 8 is arranged between the conical expansion sleeve 6 and the fastening nut 7, and the rear cover 8 is fixed on the end of the conical...

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Abstract

The invention relates to an expansion fixture suitable for blank surfaces. The fixture comprises a flange, a mandrel fixed in the center of the flange, and a retainer connected with the flange through a bolt. A plurality of sliders are evenly distributed in the circumference direction of the retainer, a cushion block is fixed to each slider, a conical expansion sleeve is further arranged between the retainer and the mandrel, the conical expansion sleeve is tightly connected with the sliders, a spring is connected between the front end of the conical expansion sleeve and the flange, and the tail end of the conical expansion sleeve is provided with a fastening nut arranged on the mandrel in a sleeving mode. The expansion fixture has the advantages of being simple in structure, capable of improving production efficiency, capable of being used for machining the blank surfaces with different diameters and the like.

Description

technical field [0001] The invention relates to the technical field of mechanical clamps, in particular to an expansion clamp suitable for blank surfaces. Background technique [0002] For the processing of cast iron sleeve parts, it is required to ensure the total length and the size of the two seams at the same time. Since the outer circle cannot be clamped according to the processing requirements, and the inner hole is a blank surface, it is not suitable to use an expansion sleeve. When using three jaws to expand the workpiece, the three jaws are too short, and the workpiece is long and poor in rigidity. The processing and manufacturing of the fixture is cumbersome, and it can only be used once, so it cannot meet the needs of workpieces with various inner diameters. Contents of the invention [0003] In view of the above problems, the purpose of the present invention is to provide a simple structure, improve production efficiency, and can process workpieces with blank ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/40
CPCB23B31/408
Inventor 高翔
Owner CHANGZHOU YINBAO NICKEL NETWORK
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