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Memory alloy pin puller

A memory alloy and memory alloy wire technology, which is applied to hand-held tools, manufacturing tools, etc., can solve the problems of poor ease of use, complicated heating process, and long response time of pin pullers, and achieves improved ease of use and reliability. Safe and convenient operation and compact structure

Pending Publication Date: 2019-04-16
北京微分航宇科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the problems of complex heating process, high power consumption, long response time and low reliability, the company developed a pin puller based on memory alloy wire in 2016, application number 201610607315.1
The ease of use of the pin puller is poor. The pin puller itself does not provide sufficient constraints on the rotational freedom and radial translational freedom of the pin. It needs to rely on external equipment to constrain the above pins in order to ensure that the pin puller Reliable work, in addition, the memory alloy wire is exposed during the assembly process, which is easily damaged, and the overall volume is large, and there is no integrated electrical connector

Method used

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Examples

Experimental program
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Embodiment Construction

[0028] Such as figure 1 , 2 , 3 and 4, a memory alloy pin puller is characterized in that pin 1, shell 2, electrical connector end cover 3, screw A4, pull plate 5, spring 6, spring sleeve 7, PCB board 8 , insulating end cap 9, connector pin 10, memory alloy wire 11, screw B12;

[0029] The pin 1 is a cylindrical metal part, the outer contour is divided into two sections according to different diameters, a threaded hole is provided in the center of the end surface of the smaller diameter side, and a hexagonal counterbore is provided on the other end surface, and a threaded hole is provided in the center of the counterbore;

[0030] The shell 2 is a cylindrical metal cavity body, and the outer contour is divided into three sections according to different diameters, and the diameters increase successively. A circular hole is provided in the center of the end face of the section with the smallest diameter, and a pair of uniform holes along the circumferential direction are provid...

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Abstract

The invention discloses a pin puller based on a memory alloy wire. The memory alloy pin puller comprises a pin (1), a shell (2), an electric connector end cover (3), a screw A (4), a pulling disk (5),a spring (6), a spring sleeve (7), a PCB (8), an insulation end cover (9), a connector needle (10), the memory alloy wire (11) and a screw B (12). The memory alloy pin puller is compact in appearance, convenient to use, high in compatibility and high in reliability and can meet the requirement of a spaceflight release mechanism on the pin puller.

Description

technical field [0001] The invention relates to a pin puller, in particular to a memory alloy pin puller. Background technique [0002] As a new type of intelligent material, memory alloy has the characteristics of shape memory. It is forced to deform below a specific phase transition temperature. When the temperature rises above the phase transition temperature, the memory alloy can restore its original shape. This feature of the memory alloy has good application value, and has been widely used in the fields of civilian toys, robots and aerospace; the open-type self-folding memory alloy developed by Aerospace Dongfanghong Satellite Co., Ltd. in 2008 unlocks The device is to bend the memory alloy rod into a U shape, and it is opened by heating the electric heating wire. The company has also developed a pin puller that elongates two memory alloy rods with a diameter of about 3mm, Shrink action after heating. In order to solve the problems of complex heating process, high po...

Claims

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Application Information

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IPC IPC(8): B25B27/02
CPCB25B27/02
Inventor 杨天光兰星
Owner 北京微分航宇科技有限公司
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