Unlock instant, AI-driven research and patent intelligence for your innovation.

Expansion type pin

An expansion type, pin technology, applied in the field of mechanical parts, can solve problems such as slack and affect the precise positioning of pins, and achieve the effect of preventing leakage and ensuring precision

Inactive Publication Date: 2018-06-05
王冠
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the existing pins are simple in design and only have a cylindrical structure. After the pins are loaded and unloaded many times, they tend to loosen, which affects the precise positioning of the pins.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Expansion type pin
  • Expansion type pin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] A preferred embodiment of an expandable pin of the present invention will be described in detail below with reference to the accompanying drawings.

[0015] figure 1 and figure 2 A specific embodiment of an expandable pin of the present invention is shown: the expandable pin includes a cylindrical pin shell 1, a central hole 4 is opened on the side of the pin shell 1, the central hole 4 is a through hole with a cross-section, and the central hole 4 A cross-section electric heating mandrel 2 is inserted, and the electric heating mandrel 2 and the central hole 4 are transitionally fitted. The length of the electric heating mandrel 2 is equal to the length of the pin shell 1. Both ends of the electric heating mandrel 2 are equipped with lugs. 3. There are wiring holes 5 in the centers of the two lugs 3, and the wiring holes are used for fixedly connecting power wires.

[0016] combine figure 1 and figure 2 , The pin shell 1 is made of polyimide material, which is a h...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an expansion type pin, and relates to the field of mechanical parts. A center hole is formed in the side face of a pin shell of the expansion type pin, an electric heating corerod is inserted into the center hole, lug plates are arranged at the two ends of the electric heating core rod, and wiring holes are formed in the centers of the two lug plates. During use, the pin shell can be firstly installed in a pin hole, then the electric heating core rod is inserted into the center hole, a power line is connected through the wiring holes of the two lug plates, and then theelectric heating core rod is heated; and the pin shell is made of an insulating material so that electric leakage can be effectively prevented, the electric heating core rod and the pin shell are expanded after being heated so as to be tightly attached to the pin hole, and the precision of positioning of the pin is effectively guaranteed.

Description

technical field [0001] The invention relates to the field of mechanical parts, in particular to an expansion pin. Background technique [0002] In the machinery industry, a pin is a cylindrical part of metal or other material, especially a support used to fasten several separate objects together or to suspend one object from another. Pins are often used for precise positioning and to prevent mutual displacement of connected parts. [0003] Most of the existing pins are simple in design and only have a cylindrical structure. After the pins are loaded and unloaded many times, they tend to loosen, which affects the precise positioning of the pins. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide an expandable pin. An electric heating mandrel is arranged in the pin shell, which is heated after being energized to expand the pin and increase the positioning accuracy of the pin. [0005] In order to achieve the above o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F16B19/02F16B13/00
CPCF16B19/02F16B13/00
Inventor 王冠
Owner 王冠