CN212433215U

CN212433215U - Automatic conduction test fixture

Info

Publication number: CN212433215U
Application number: CN202020848609.5U
Authority: CN
Inventors: 单威
Original assignee: Goertek Techology Co Ltd
Current assignee: Goertek Techology Co Ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2021-01-29
Anticipated expiration: 2030-05-19

Abstract

The utility model discloses an automatic conduction test fixture, which comprises a test board, wherein a profiling limiting part used for positioning a test product is arranged on the test board, and an induction piece used for detecting whether the test product is placed in the profiling limiting part is arranged in the profiling limiting part; the test board is also provided with a turnover panel and a driving assembly for driving the turnover panel to turn over, and the turnover panel is provided with an adjustable test probe unit which is correspondingly contacted with a test terminal of a test product to perform conduction test. The utility model can realize the one-time alignment of the adjustable test probe unit and the test terminal of the test product, and avoid the problems of easy puncture and breakage of the flat cable, long test time and large fatigue degree during the test; the whole testing process has high automation degree, and can complete the perfect conversion from manual operation to automation.

Description

Automatic conduction test fixture

Technical Field

The utility model belongs to the technical field of test fixture, especially, relate to an automatic conduction test fixture.

Background

Generally, before an electronic product leaves a factory, various performance tests, such as a conduction test, need to be performed. At present, a method of placing a test product on a desktop and holding a conduction test pen by two hands is often adopted for testing; when the method is used for testing, the detection needle head and the test terminals (pin headers) on the product cannot be aligned at one time, so that the flat cable is easy to be punctured and broken, the test time is increased, the fatigue of personnel is increased, and the reliability of the test result cannot be ensured.

SUMMERY OF THE UTILITY MODEL

Aim at overcoming exist among the above-mentioned prior art not enough, the utility model provides a technical problem is, provide an automatic conduction test fixture, can replace manual test operation, the winding displacement easily stabs disconnected, test time is long, the big problem of fatigue when having solved the test.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: an automatic conduction test jig comprises a test board, wherein a profiling limiting part used for positioning a test product is arranged on the test board, and a sensing piece used for detecting whether the test product is placed in the profiling limiting part is arranged in the profiling limiting part;

the test board is also provided with a turnover panel and a driving assembly for driving the turnover panel to turn over, and the turnover panel is provided with an adjustable test probe unit which is correspondingly contacted with a test terminal of a test product to perform conduction test.

As a further improvement, the adjustable test probe unit comprises a mounting seat which is transversely slidably mounted on the turnover panel, a longitudinal adjusting mechanism is arranged on the mounting seat, and a test probe is arranged on a power output part of the longitudinal adjusting mechanism.

As a further improvement, an adjusting piece is arranged on the mounting seat, an adjusting guide groove extending transversely is arranged on the turnover panel, and a locking piece is arranged at one end of the adjusting piece, which penetrates out of the adjusting guide groove; and the locking piece is loosened, so that the adjusting piece can transversely slide along the adjusting guide groove.

As a further improvement, the longitudinal adjusting mechanism comprises a nut and a screw rod rotatably mounted on the mounting seat, and the test probe is arranged on the nut;

the mounting seat is provided with a containing guide groove which extends longitudinally and is used for slidably installing the nut, and the screw rod longitudinally penetrates through the containing guide groove and is in threaded connection with the nut in the containing guide groove.

As a further improvement, two adjustable test probe units are arranged on the turnover panel at intervals.

As a further improvement, the turnover panel comprises a body and a fixed lug seat arranged at the bottom of the body.

As a further improvement, the driving assembly comprises a driving motor fixed on the test bench and a driving shaft connected with a power output shaft of the driving motor, and the driving shaft is rotatably mounted by means of a bearing seat on the test bench; the drive shaft runs through fixed ear seat and with fixed ear seat interference fit.

As a further improvement, a limit bracket is arranged on the test board; when the turnover panel is turned towards the direction deviating from the test product, the limiting support is used for limiting the turnover panel in a supporting mode.

As a further improvement, the test board is provided with a warning lamp and an emergency stop button for emergently cutting off the power supply of the driving assembly.

As a further improvement, the sensing element is an optical sensor.

Due to the adoption of the technical scheme, the beneficial effects are as follows:

the utility model discloses an automatic conduction test fixture, including the testboard, be provided with the profile modeling spacing portion that is used for fixing a position to the test product on the testboard, be provided with the response piece that is used for detecting whether placed the test product in it in the profile modeling spacing portion; the test board is rotatably provided with a turnover panel and a driving assembly for driving the turnover panel to turn over, and the turnover panel is provided with an adjustable test probe unit which is correspondingly contacted with a test terminal of a test product to perform conduction test. During the use, adjustable test probe unit need be connected with the universal meter, and universal meter, response piece and drive assembly all are connected with the PLC controller electricity.

During testing, a test product is placed in the profiling limiting part, when the sensing piece senses the test product, a trigger signal is sent to the PLC, the PLC controls the driving assembly to work, the overturning panel overturns towards the direction of the test product, and the adjustable test probe unit correspondingly contacts with a test terminal of the test product to conduct conduction testing; in the test, the universal meter can have a specific test value, and the product is qualified within a qualified test value range; if the numerical value is not in the qualified range, indicating that the product is NG; the driving assembly controls the overturning panel to overturn towards the direction away from the tested product, and the product is taken down to be placed at different stations.

By adopting the jig, the adjustable test probe unit can be aligned with the test terminal of the test product at one time, and the problems of easy puncture and breakage of the flat cable, long test time and high fatigue degree during testing are avoided; the whole testing process has high automation degree, and can complete the perfect conversion from manual operation to automation.

Drawings

Fig. 1 is a schematic structural view of the automatic conduction test fixture of the present invention;

fig. 2 is a schematic structural view of the automatic conduction test fixture of the present invention at another viewing angle;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of an installation structure of the adjustable test probe unit shown in FIG. 1;

FIG. 5 is an exploded view of the structure of FIG. 1;

FIG. 6 is an enlarged schematic view of the structure at B in FIG. 5;

FIG. 7 is a functional block diagram of an automatic test;

in the figure: 1-a test bench, 11-a profiling limiting part, 12-an optical sensor, 13-a bearing seat, 14-a limiting support, 15-a warning lamp, 16-an emergency stop button, 2-a turnover panel, 21-a body, 22-a fixing lug seat, 23-an adjusting guide groove, 3-a driving component, 31-a driving motor, 32-a driving shaft, 4-an adjustable test probe unit, 41-a mounting seat, 411-an adjusting piece, 412-a locking piece, 413-an accommodating guide groove, 42-a longitudinal adjusting mechanism, 421-a nut, 422-a screw rod and 43-a test probe.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the orientation or position relationship of the embodiments of the present invention, such as "horizontal" and "vertical", is described based on the orientation and position relationship shown in the drawings, and is only for the convenience of simplifying the description, and should not be construed as limiting the present invention.

As shown in fig. 1 to 6, the embodiment discloses an automatic conduction testing fixture, which includes a testing platform 1, wherein the testing platform 1 is provided with a profiling limiting portion 11 (also called a profiling limiting groove) for positioning a testing product, and the profiling limiting portion 11 is provided with a sensing element for detecting whether the testing product is placed therein; the sensing member in this embodiment is an optical sensor 12, and may be other sensing members such as a pressure sensor, besides the optical sensor. The test board 1 is provided with an overturning panel 2 and a driving component 3 for driving the overturning panel 2 to overturn, and the overturning panel 3 is provided with an adjustable test probe unit 4 which is correspondingly contacted with a test terminal of a test product to perform conduction test; in this embodiment, two adjustable test probe units 4 are laterally spaced apart and are used to contact with two test terminals (positive terminal and negative terminal) of a test product.

Wherein, the test bench 1 is also provided with a limit bracket 14; when the turnover panel 2 is turned over to the direction away from the test product, the limit bracket 14 is used for supporting and limiting the turnover panel 2. The test bench 1 is provided with a warning lamp 15 and an emergency stop button 16 for emergently cutting off the power supply of the driving component 3; when the test product is judged to be unqualified, the warning lamp 15 is used for warning.

In this embodiment, the turnover panel 2 includes a body 21, two fixing ear seats 22 are disposed at the bottom of the body 21, and an adjusting guide groove 23 extending transversely is disposed on the body 21 so as to correspond to the adjustable test probe unit 4; each adjustable test probe unit 4 corresponds to two longitudinally arranged adjustment guide slots 23.

The driving assembly 3 comprises a driving motor 31 fixed on the test bench 1 and a driving shaft 32 connected with a power output shaft of the driving motor 31, and the driving shaft 32 is rotatably installed by means of a bearing seat 13 on the test bench 1; the driving shaft 32 penetrates through the two fixing lugs 22 and is in interference fit with the two fixing lugs 22 (synchronous rotation is achieved).

Each adjustable test probe unit 4 comprises a mounting seat 41 which is transversely slidably mounted on the turnover panel 2, a longitudinal adjusting machine 42 is arranged on the mounting seat 41, and a test probe 43 is arranged on a power output part on the longitudinal adjusting mechanism 42. Two adjusting pieces 411 (bolts) are arranged on the mounting seat 41, and a locking piece 412 (nut) is arranged at one end of each adjusting piece 411, which penetrates out of the corresponding adjusting guide groove 23; by loosening the locking member 412, the adjusting member 411 can be made to slide laterally along the adjustment guide groove 23 (lateral adjustment of the test probe 43 can be achieved). The adjustable test probe unit 4 can be suitable for testing different test products, and the universality is improved.

Wherein, the longitudinal adjusting mechanism 42 comprises a nut 421 and a screw 422 rotatably mounted on the mounting seat 41; the mounting seat 41 is provided with a containing guide groove 413 which extends longitudinally and is used for slidably mounting a nut 421, and the screw 422 longitudinally penetrates through the containing guide groove 413 and is in threaded connection with the nut 421 in the containing guide groove 413; the test probe 43 is fixedly connected to the nut 421. By rotating the screw 422, the nut 421 performs a longitudinal movement in the accommodation guide 413 (a longitudinal adjustment of the test probe 43 can be achieved).

As shown in the figures 1, 6 and 7, when the device is used, the optical sensor 12 and the multimeter are both electrically connected with the input end of the PLC (which can be arranged on the detection table 1 and can also be independently placed), and the output end of the PLC is electrically connected with the control end of the driving motor 31 and the warning lamp 15. The emergency stop button 16 (normally closed switch) is connected in series in the power supply circuit of the drive motor 31. The control logic described above is well known to those skilled in the art and is briefly described herein to assist in understanding.

During testing, a test product is placed in the profiling limiting part 11, when the optical sensor 12 senses the test product, a trigger signal is sent to the PLC, the PLC controls (can delay control to ensure that the product is placed in place) the driving assembly 3 to work, the overturning panel 2 overturns towards the direction of the test product, and the test probes 43 in the two adjustable test probe units 4 are respectively in corresponding contact with two test terminals of the test product to conduct conduction testing; in the test, the universal meter can generate a specific test value, and the product is qualified within a qualified test value range (pre-stored in a PLC controller); if the numerical value is not in the qualified range, the product is NG, the PLC sends an alarm instruction, and the warning lamp 15 flashes to give an alarm prompt; then the driving component 3 controls the overturning panel 2 to overturn towards the direction away from the tested product, and finally the product is taken down to be placed at different stations.

In summary, the utility model discloses automatic conduction test fixture can realize the disposable alignment of adjustable test probe unit and test product's test terminal, has avoided the winding displacement easily to stab absolutely during the test, test time is long, the big problem of fatigue degree; the whole testing process has high automation degree, and can complete the perfect conversion from manual operation to automation.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. An automatic conduction test fixture is characterized by comprising a test board, wherein a profiling limiting part used for positioning a test product is arranged on the test board, and a sensing piece used for detecting whether the test product is placed in the profiling limiting part is arranged in the profiling limiting part;

2. The automatic conduction testing jig according to claim 1, wherein the adjustable testing probe unit comprises a mounting seat mounted on the turnover panel in a transverse sliding manner, a longitudinal adjusting mechanism is disposed on the mounting seat, and a testing probe is disposed on a power output portion of the longitudinal adjusting mechanism.

3. The automatic conduction testing jig according to claim 2, wherein an adjusting member is provided on the mounting base, an adjusting guide groove extending transversely is provided on the turnover panel, and a locking member is provided at an end of the adjusting member penetrating out of the adjusting guide groove; and the locking piece is loosened, so that the adjusting piece can transversely slide along the adjusting guide groove.

4. The automatic conduction testing jig according to claim 2, wherein the longitudinal adjusting mechanism includes a nut and a screw rotatably mounted on the mounting base, and the testing probe is disposed on the nut;

5. The tool of any one of claims 1 to 4, wherein two adjustable test probe units are disposed on the flip panel at intervals.

6. The tool of claim 1, wherein the flip panel comprises a body and a fixing ear seat disposed at the bottom of the body.

7. The automatic conduction test fixture according to claim 6, wherein the driving assembly comprises a driving motor fixed on the test platform and a driving shaft connected with a power output shaft of the driving motor, and the driving shaft is rotatably mounted by means of a bearing seat on the test platform; the drive shaft runs through fixed ear seat and with fixed ear seat interference fit.

8. The automatic conduction test fixture according to claim 1, wherein a limit bracket is arranged on the test platform; when the turnover panel is turned towards the direction deviating from the test product, the limiting support is used for limiting the turnover panel in a supporting mode.

9. The automatic conduction test fixture according to claim 1, wherein the test platform is provided with a warning light and an emergency stop button for cutting off the power supply of the driving assembly in an emergency.

10. The automatic conduction testing jig of claim 1, wherein the sensor is an optical sensor.