CN201967132U

CN201967132U - Discrete test fixture for mobile phone electron-phonon

Info

Publication number: CN201967132U
Application number: CN2010206797880U
Authority: CN
Inventors: 陈伟荣; 张博华
Original assignee: YAGUANG NYPRO PRECISION MOLDING (TIANJIN) CO Ltd
Current assignee: Yaguang precision injection molding (Tianjin) Co., Ltd.
Priority date: 2010-12-27
Filing date: 2010-12-27
Publication date: 2011-09-07
Anticipated expiration: 2020-12-27

Abstract

The utility model relates to a discrete test fixture for mobile phone electron-phonon. The test fixture comprises a test connection interface, a briquetting, a test needle block, a test probe, locating bearings, locating pillars and a base, wherein the test needle block is fixed with the briquetting; the test probe is embedded in the test needle block; the lower ends of the locating pillars are embedded in the base; both bearings are respectively installed at the both ends of the briquetting; the upper ends of both locating pillars respectively penetrate into the two bearings; and the two locating pillars and the two bearings are matched with each other in a sliding way. The design is suitable for the test of various mobile phone products, the universality of the fixture is increased, the stability of the equipment is improved, the false test rate of the products is lowered; and the fixture is convenient to maintain, the adjusting frequency of the fixture is increased, the required time of the disassembly and assembly of the fixture is shortened, meanwhile the maintenance cost is lowered. As the test needle block can be disassembled, only the test needle block needs to be replaced when the fixture is damaged, the whole fixture needs not to be maintained, and therefore, at least half maintenance cost can be lowered.

Description

Separate type mobile telephone electroacoustical measurement anchor clamps

Technical field

The utility model relates to test device for mobile phone, particularly a kind of separate type mobile telephone electroacoustical measurement anchor clamps.

Background technology

Briquetting on traditional mobile phone back cover receiver test fixture is directly to link together by the crossbeam in two double-screw bolts and the shielded box casing, base and the briquetting of putting measured piece are two integral body, when changing test probe or maintenance, can finish after needing earlier anchor clamps and crossbeam separated.Can test two test products simultaneously in the shielded box; drive two test fixtures by crossbeam and test test product; the interference effect that crossbeam torsion causes when being subjected to the interlock of two chambeies; about the pressure in two chambeies and position be difficult to keep balance; need often to adjust, cause audio-frequency test instrument stability not enough, because maintenance is frequent; downtime is long, has affected indirectly the production capacity and the quality of product.

Summary of the invention

In view of the problem that above-mentioned prior art exists, the purpose of this utility model is a kind of separate type electroacoustical measurement anchor clamps of design.By existing anchor clamps are redesigned, be convenient to maintenance to reach, improve stabilization of equipment performance, reduce downtime, improve the purpose of power of test.

The technical scheme that the utility model is taked for achieving the above object is: a kind of separate type mobile telephone electroacoustical measurement anchor clamps, comprise test connecting interface, briquetting, test probe, location bearing, reference column and base, it is characterized in that: also comprise the testing needle piece, described testing needle piece is fixedlyed connected with briquetting, test probe is embedded on the testing needle piece, the lower end of two reference columns is embedded on the base, two bearings are contained in the two ends of briquetting respectively, the upper end of two reference columns penetrates two location bearings respectively, and two reference columns and two location bearings are slidingly matched.

The beneficial effect that the utility model produced is: the design is applicable to the electroacoustical measurement of various mobile phone productses, has not only increased the versatility of anchor clamps, has improved the stability of equipment, has reduced the false failure rate of product; Be more convenient for keeping in repair, reduced the frequency of anchor clamps adjustment and, also reduced maintenance cost simultaneously because of dismounting and required time of sectional fixture.Because the testing needle piece can split, thus only need change the testing needle piece when damaging, and needn't keep in repair whole anchor clamps, so can save the maintenance cost of half at least.

Description of drawings

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model partial structurtes schematic diagrames.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

With reference to Fig. 1, Fig. 2, separate type mobile telephone electroacoustical measurement anchor clamps comprise test connecting interface 1, briquetting 2, testing needle piece 3, test probe 4, location bearing 5, reference column 6 and base 7, testing needle piece 3 and briquetting 2 are fixedlyed connected by screw, test probe 4 is embedded on the testing needle piece 3, the two ends of two reference columns 6 are connected with base 7 with briquetting 2 by location bearing 5 respectively, the two ends of briquetting 2 and base 7 are respectively equipped with corresponding positioning hole, the lower end of two reference columns 6 is embedded on the base 7 by location hole, two bearings 5 are installed in the two ends of briquetting 2 respectively by location hole, the upper end of two reference columns 6 penetrates 5, two reference columns 6 of two location bearings respectively and two location bearings 5 are slidingly matched.

Testing needle piece 3 both sides be respectively equipped be processed as one positive stop lug boss 8; The lower end of two reference columns 6 has been with the compression spring 9 of damping action; Base 7 is designed to T type structure; Test connecting interface 1 adopts banana hair style interface, and the both sides of briquetting 2 are provided with the contiguous block that is processed as one, and contiguous block is provided with fixing hole, and banana hair style test connecting interface 1 is embedded in the fixing hole.

This test fixture has been cancelled and has been used for the structure that is connected with the casing crossbeam originally, has eliminated casing vibration and the influence of crossbeam torsion to anchor clamps.The work that repeats of dismounting and sectional fixture when having reduced replacing probe and maintenance.Test probe 4 that will be connected with measured piece simultaneously and the pressing structure that plays sealing function are designed to a kind of testing needle piece 3 of separable suitable polytypic product separately, testing needle piece 3 both sides have respectively increased the positive stop lug boss 8 of a strip again, guarantee that pressure is steady, and guarantee that product can not damaged by pressure, when anchor clamps damage or change product, it is just passable only to need to change corresponding testing needle piece 3, has not only increased the versatility of anchor clamps, has also reduced maintenance cost simultaneously.In addition, again original detachable reference column 6 and T type base 7 are made the structure of integral type, relatively moving between reference column 6 and the T type base 7 guaranteed that test probe 4 and the accurate of measured piece contact when having reduced test, thereby reduces because the mistake that loose contact causes is surveyed.

This test fixture operation principle: measured piece is put on the T type base 7, test signal is inserted in the anchor clamps test connecting interface 1 by two banana hair style joints, at this moment, the lead of the test probe 4 on the testing needle piece 3 is connected with test connecting interface 1, start testing equipment, briquetting 2 will drive testing needle piece 3 and move under the direction of location bearing 5 and reference column 6 qualifications, reference column 6 outer compression springs 9 have been damping actions, it is also airtight that measured piece is contacted with testing needle piece 3, test signal passes to measured piece by test probe 4 again, finally signal is passed to relevant electroacoustical instrument and analyze by microphone, thus the acoustical testing of realization measured piece.After test finished, briquetting lifted on the testing needle piece, gets back to original position.

Claims

1. separate type mobile telephone electroacoustical measurement anchor clamps, comprise test connecting interface (1), briquetting (2), test probe (4), location bearing (5), reference column (6) and base (7), it is characterized in that: also comprise testing needle piece (3), described testing needle piece (3) is fixedlyed connected with briquetting (2), test probe (4) is embedded on the testing needle piece (3), the lower end of two reference columns (6) is embedded on the base (7), two bearings (5) are contained in the two ends of briquetting (2) respectively, the upper end of two reference columns (6) penetrates two location bearings (5) respectively, and two reference columns (6) are slidingly matched with two location bearings (5).

2. separate type mobile telephone electroacoustical measurement anchor clamps according to claim 1 is characterized in that: described testing needle piece (3) both sides are respectively equipped with the positive stop lug boss (8) that is processed as one.

3. separate type mobile telephone electroacoustical measurement anchor clamps according to claim 1 is characterized in that: the lower end of described two reference columns (6) has been with the compression spring (9) of damping action.

4. separate type mobile telephone electroacoustical measurement anchor clamps according to claim 1 is characterized in that: described base (7) is designed to T type structure.

5. separate type mobile telephone electroacoustical measurement anchor clamps according to claim 1 is characterized in that: described test connecting interface (1) adopts banana hair style interface.