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Insulating sleeve bulging tool

An insulating sleeve and expanding technology, which is applied to insulators, insulators, waveguide-type devices, etc., can solve the problems of increased structure, unstable electrical indicators, difficult to guarantee the size of the outer circle machining, affecting the overall performance of the filter, etc. To improve the efficiency and the quality of the shape, the effect of the shape is good, and the stability is enhanced.

Active Publication Date: 2012-05-23
WUHAN FINGU ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the good plasticity of the polytetrafluoroethylene material, it is difficult to ensure the machining size of the outer circle of the insulating sleeve during processing, which leads to the displacement of the insulating sleeve in the filter cavity after it is installed into the filter cavity. This has a great impact on the echo index of the product, and increases the instability of the structure and electrical index, thus affecting the overall performance of the filter

Method used

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  • Insulating sleeve bulging tool
  • Insulating sleeve bulging tool
  • Insulating sleeve bulging tool

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0027] like figure 1 In the shown insulating sleeve, at least one ring of flanges 10 is provided on the insulating sleeve 9 along the circumferential direction of the insulating sleeve 9, and the protrusion height of the flanges 10 ranges from 0.5 to 0.8 mm. like Image 6 As shown, the flange 10 is used to closely fit the filter cavity 11 to prevent the insulating sleeve 9 from being displaced in the filter cavity 11 .

[0028] In the above technical solution, the insulating sleeve 9 is provided with two rings of flanges 10 along the circumferential direction of the insulating sleeve 9 . The distance between the flange 10 on the left side of the insulating sleeve 9 and the left end of the flange sleeve 9 is 10.5-11.5 mm, and the distance between the flange 10 on the right side of the insulating sleeve 9 and the right end of the flange sleeve 9...

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Abstract

The invention relates an insulating sleeve, a spreading process thereof, and a tool realizing the spreading process. At least one circle of flange is arranged on the insulating sleeve along the circumference of the insulating sleeve, and the flange is used for closely attaching a filter cavity. The spreading process of the insulating sleeve comprises the following steps: sleeving the insulating sleeve to be spread outside a rubber pipe; fixing one end of the rubber pipe, applying uniform pressure on the other end of the rubber pipe to extrude the rubber pipe; and leading the rubber pipe to uniformly spread along the radial direction, and driving the insulating sleeve outside the rubber pipe to be spread to form a circle of flange. The tool realizing the process comprises a strut bar, a base and the rubber pipe, wherein the end face of the base is provided with a positioning column; the rubber pipe is sleeved outside the positioning column; an inner hole matched with the positioning column is arranged in the strut bar; and one end of the rubber pipe is completely attached to the end face of the base, while the other end is completely attached to the end face of the strut bar. The invention ensures that the insulating sleeve is hardly displaced in the filter cavity, and the influence of the insulating sleeve which easily slides to the radar index of products can be reduced.

Description

technical field [0001] The invention relates to the technical field of microwave communication equipment, in particular to an insulating sleeve, its expanding process and a tool for realizing the process. technical background [0002] The insulating sleeve on the low pass of the existing filter is made of polytetrafluoroethylene material, and the fit between the insulating sleeve and the hole of the filter cavity is a transition fit. Due to the good plasticity of the polytetrafluoroethylene material, it is difficult to ensure the machining size of the outer circle of the insulating sleeve during processing, which leads to the displacement of the insulating sleeve in the filter cavity after it is installed into the filter cavity. This has a great impact on the echo index of the product, and increases the instability of the structure and electrical index, thereby affecting the overall performance of the filter. Contents of the invention [0003] The object of the present in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B17/56H01B19/00H01P1/207
Inventor 许军
Owner WUHAN FINGU ELECTRONICS TECH
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