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Tool and method for testing adhesive property of frameless self-adhesive enameled wire

A technology for testing tooling and testing methods, which is applied in the field of enameled wire coils, can solve problems such as long testing time, low work efficiency, easy deformation, etc., and achieve the effect of efficient testing

Pending Publication Date: 2017-12-22
INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the defects and deficiencies in the above-mentioned prior art, the present invention provides a tool and method for testing the adhesion of self-adhesive enameled wire without a skeleton. For the problems of long test time and low work efficiency, the invention uses the principle of expansion to change the diameter of the fixture, and after assembly, the fixture fixes both ends of the self-adhesive enameled wire without skeleton, which effectively avoids the self-adhesive enameled wire coil without skeleton, especially the ultra-micro The self-adhesive coil is easily deformed by uneven external force. The method of the present invention has no limitation on the nominal diameter of the enameled wire and is universal. The present invention can quickly, accurately and efficiently test the bonding force of the enameled wire

Method used

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  • Tool and method for testing adhesive property of frameless self-adhesive enameled wire
  • Tool and method for testing adhesive property of frameless self-adhesive enameled wire

Examples

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Embodiment 1

[0025] As a preferred embodiment of the present invention, with reference to the attached figure 1 and 2 , this example discloses:

[0026] A tooling for testing the bonding force of skeletonless self-adhesive enameled wire, including a base 1, two sets of tooling fixtures and a skeletonless self-adhesive enameled wire coil 7; the two sets of tooling fixtures are symmetrically arranged on the base 1, and the skeletonless self-adhesive enameled wire coil 7 One end of one end is connected on a set of tooling fixtures, and the other end is connected on another set of tooling fixtures; the tooling fixtures include tension screws 2, expansion sleeves 3, lock nuts 5 and positioning pins 4; the expansion sleeves 3 is socketed on the tightening screw 2, and the expansion nut is threadedly connected to the threaded end of the tightening screw 2, the limiting groove 6 is arranged on the tightening screw 2, and the expansion sleeve 3 is provided with a positioning hole and a positioning...

Embodiment 2

[0028] As another preferred embodiment of the present invention, with reference to the attached figure 1 and 2 , this example discloses:

[0029] A tooling for testing the bonding force of skeletonless self-adhesive enameled wire, including a base 1, two sets of tooling fixtures and a skeletonless self-adhesive enameled wire coil 7; the two sets of tooling fixtures are symmetrically arranged on the base 1, and the skeletonless self-adhesive enameled wire coil 7 One end is connected to a set of tooling fixtures, and the other end is connected to another set of tooling fixtures; the tooling fixtures include tension screws 2, expansion sleeves 3, locking nuts 5 and positioning pins 4; the locking sleeves 3 is socketed on the tightening screw 2, and the expansion nut is threadedly connected to the threaded end of the tightening screw 2, the limiting groove 6 is arranged on the tightening screw 2, and the expansion sleeve 3 is provided with a positioning hole and a positioning pin...

Embodiment 3

[0031] As another preferred embodiment of the present invention, with reference to the attached figure 1 and 2 , this example discloses:

[0032] A method for testing the bond strength of skeletonless self-adhesive enameled wire, comprising the following steps:

[0033] Step A, preparing the skeletonless self-adhesive enameled wire coil 7, the self-adhesive enameled wire is wound on the skeleton and thermally bonded to form a skeleton coil to be tested, and the skeletonless self-adhesive enameled wire coil 7 is formed after demolding;

[0034]Step B, prepare the tooling fixture, install the tensioning screw 2 in the expansion sleeve 3, press the positioning pin 4 on the expansion sleeve 3, and insert the positioning pin 4 into the expansion sleeve 3 at the end of the tensioning screw 2 In the limit groove 6, install the lock nut 5 on the threaded end of the tension screw 2, and turn the lock nut 5 to make the tension screw 2 move in the expansion sleeve 3; assemble two sets ...

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Abstract

The invention discloses a tool and a method for testing the adhesive property of a frameless self-adhesive enameled wire, relating to the technical field of enameled wire coils. The tool comprises a base, two frock clamps and a frameless self-adhesive enameled wire coil, wherein the two frock clamps are symmetrically arranged on the base, one end of the frameless self-adhesive enameled wire coil is connected with one frock clamp, and the other end of the frameless self-adhesive enameled wire coil is connected with the other frock clamp. According to the tool and the method, the diameters of the clamps are changed by utilizing an expansion principle, the assembled clamps are used for fixing the two ends of the frameless self-adhesive enameled wire, and the phenomenon that the frameless self-adhesive enameled wire coil, particularly the frameless ultramicro self-adhesive wire coil, deforms due to uneven external force can be effectively avoided. According to the method, the nominal diameter of the enameled wire is indefinite, universality is achieved, and the adhesive force of the enameled wire can be tested rapidly, accurately and efficiently.

Description

technical field [0001] The invention relates to the technical field of enameled wire coils, and more specifically relates to a tool and method for testing the bonding force of skeletonless self-adhesive enameled wires. Background technique [0002] Skeletonless self-adhesive enameled wire is made by winding the enameled wire on the mold, through baking or direct heating of the coil, so that the self-adhesive coatings are bonded to each other, and the mold can be fixed after cooling. Its simple molding process is widely used in various industries. The bonding force of the skeletonless self-adhesive enameled wire plays a pivotal role in the skeletonless self-adhesive enameled wire. If the bonding force is too small, the enameled wire will crack and deform. [0003] At present, there are three methods for testing the bonding force of skeletonless self-adhesive enameled wire: [0004] The first method is to introduce in detail the adhesive force of a conductor with a nominal d...

Claims

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Application Information

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IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 何莉苹李凡杨鹏李小阳罗盛宝张玮伟丛森方继华
Owner INST OF ELECTRONICS ENG CHINA ACAD OF ENG PHYSICS
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