CN213750214U

CN213750214U - Test tool

Info

Publication number: CN213750214U
Application number: CN202121390313.4U
Authority: CN
Inventors: 徐显杰; 庞春海
Original assignee: Suoto Hangzhou Automotive Intelligent Equipment Co Ltd; Tianjin Soterea Automotive Technology Co Ltd
Current assignee: Suoto Hangzhou Automotive Intelligent Equipment Co Ltd; Tianjin Soterea Automotive Technology Co Ltd
Priority date: 2021-06-22
Filing date: 2021-06-22
Publication date: 2021-07-20
Anticipated expiration: 2031-06-22

Abstract

The utility model belongs to the technical field of the PCBA test, a test fixture is disclosed, include: the placing table is provided with a limiting groove, and a workpiece to be tested is placed in the limiting groove; the connecting seat is arranged below the placing table, a plurality of probes are arranged on the connecting seat, and the probes can be abutted with a workpiece to be tested; the supporting seat is provided with a sliding rod which is arranged perpendicular to the placing table; the clamping assembly comprises a driving part and a clamping part, the clamping part is arranged on the sliding rod in a sliding mode, the driving part can drive the clamping part to be matched with the placing table to clamp the workpiece to be tested, and the workpiece to be tested is enabled to be abutted against the probe; the test system is electrically connected with the probe and is used for testing the voltage and the current of the workpiece to be tested; and the display assembly is electrically connected with the test system and displays the voltage and the current measured by the test system. The test tool can position and detect the workpiece to be tested, manual test operation is not needed, the test mode is simple and rapid, and the test accuracy is high.

Description

Test tool

Technical Field

The utility model belongs to the technical field of the PCBA test, especially, relate to a test fixture.

Background

In the development process of an automatic Braking system (AEB for short) of an automobile, a capacitor, a resistor, a sensor, a processor and the like are welded on a PCBA to form a PCBA assembly, and the electrical performance of the PCBA assembly is determined through a series of tests before the PCBA assembly is used. The voltage and current are typically tested by a hand-held universal meter whose probes contact the contacts of the PCBA, which is inefficient and may have errors in test results.

Therefore, a testing tool is needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a test fixture, it can fix a position and detect the workpiece to be tested, and test mode guarantees that the test contact point at every turn is unanimous, and need not the manual work and carry out test operation, and test mode is simple swift, and is efficient, and the error is little, has improved the test rate of accuracy.

To achieve the purpose, the utility model adopts the following technical proposal:

the utility model provides a test fixture, includes:

the placing table is provided with a limiting groove, and a workpiece to be tested is placed in the limiting groove;

the connecting seat is arranged below the placing table, a plurality of probes are arranged on the connecting seat, and the probes can be abutted with the workpiece to be tested;

the supporting seat is provided with a sliding rod, and the sliding rod is perpendicular to the placing table;

the clamping assembly comprises a driving part and a clamping part, the clamping part is arranged on the sliding rod in a sliding mode, the driving part can drive the clamping part to be matched with the placing table to clamp the workpiece to be tested, and the workpiece to be tested is abutted to the probe;

the test system is electrically connected with the probe and is used for testing the voltage and the current of the workpiece to be tested;

and the display assembly is electrically connected with the test system and displays the voltage and the current measured by the test system.

As an optimal technical scheme of a test tool, the test system comprises a voltmeter, an ammeter and a control assembly, the voltmeter and the ammeter are electrically connected with the connecting seat, the voltmeter, the ammeter and the display assembly are electrically connected with the control assembly, the control assembly can control the voltmeter and the ammeter to detect, the voltmeter and the ammeter can feed back voltage and current detected by the ammeter to the control assembly, and the control assembly can transmit the voltage and the current to the display assembly.

As a preferred technical scheme of the test tool, the test tool further comprises a case, the placing table is arranged on the case, the voltmeter, the ammeter and the control assembly are arranged in the case, and the display assembly is arranged on the side wall of the case.

As an optimal technical scheme of the test tool, the test tool further comprises a control switch, a qualified display lamp and an unqualified display lamp, wherein the control switch, the qualified display lamp and the unqualified display lamp are electrically connected with the control assembly.

The test fixture comprises a control assembly, a test tool body and an identification assembly, wherein the control assembly is used for controlling the test tool body to be tested, and the identification assembly is used for identifying the ID of the workpiece to be tested and feeding the ID back to the control assembly.

As an optimal technical scheme of the test tool, a connection interface is arranged on the case and electrically connected with the control assembly, the connection interface can be connected with an upper computer, and the control assembly can transmit the ID, the voltage and the current to the upper computer.

As a preferred technical scheme of test fixture, the holder includes the grip block and sets up a plurality of support pressure posts on the grip block, support and press the post and include connecting portion and elastic contact portion, connecting portion connect in the grip block, elastic contact portion can the butt in the work piece that awaits measuring.

As a preferred technical scheme of test fixture, the driving piece includes four link assembly and set up in handle on the four link assembly, four link assembly fix on the supporting seat, the grip block connect in four link assembly.

As an optimal technical scheme of the test tool, the display assembly comprises a voltage display screen, a current display screen and a working voltage display screen, and the voltage display screen, the current display screen and the working voltage display screen are all electrically connected with the control assembly.

Compared with the prior art, the utility model discloses following beneficial effect has:

the workpiece to be tested is placed in the limiting groove, the driving piece drives the clamping piece to be matched with the placing table to clamp the workpiece to be tested, the workpiece to be tested is enabled to be in butt joint with the probe, the testing system tests the voltage and the current of the workpiece to be tested, and the display assembly displays the voltage and the current measured by the testing system. The test tool can position and detect a workpiece to be tested, the test mode ensures that the test contact points are consistent at every time, manual test operation is not needed, the test mode is simple and quick, efficiency is high, errors are small, and test accuracy is improved.

Drawings

Fig. 1 is the utility model provides a test fixture's structural schematic.

Wherein, 1, placing a table; 11. a limiting groove; 2. a supporting seat; 21. a slide bar; 31. a clamping plate; 32. a pressing column; 41. a voltage display screen; 42. a current display screen; 43. a working voltage display screen; 5. a chassis; 6. the component is identified.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1, the embodiment discloses a test fixture, which includes a placing table 1, a connecting seat, a supporting seat 2, a clamping assembly, a test system, a display assembly and a case 5.

Placing table 1 is arranged on case 5, placing table 1 is provided with spacing groove 11, the work piece that awaits measuring is placed in spacing groove 11, and spacing groove 11 plays spacing effect to the work piece that awaits measuring. The workpiece to be tested is PCBA. The connecting seat is arranged below the placing table 1 and on the case 5. The connecting seat is provided with a plurality of probes which can be abutted against the workpiece to be tested so as to enable the probes to be electrically connected with the workpiece to be tested.

The supporting seat 2 is provided with two sliding rods 21, the sliding rods 21 are perpendicular to the placing table 1, and the two sliding rods 21 are respectively located on two sides. The clamping assembly comprises a driving member and a clamping member, which is slidably arranged on the sliding rod 21. Specifically, the holder includes grip block 31 and a plurality of support columns 32 that set up on grip block 31, and support columns 32 includes connecting portion and elastic contact portion, and connecting portion connect in grip block 31, and elastic contact portion can butt in the work piece that awaits measuring. The elastic contact part can avoid rigid contact with the workpiece to be tested, plays a role in buffering, and protects the workpiece to be tested from being damaged.

The driving piece can drive the clamping piece to be matched with the placing table 1 to clamp the workpiece to be tested, and the workpiece to be tested is abutted to the probe. The driving piece includes four link assembly and sets up the handle on four link assembly, and four link assembly fix on supporting seat 2, and grip block 31 connects in four link assembly, pulls the handle and can make four link assembly drive grip block 31 reciprocate.

The test system is electrically connected with the probe and is used for testing the voltage and the current of the workpiece to be tested. The display assembly is electrically connected with the test system and displays the voltage and the current measured by the test system.

Specifically, test system includes voltmeter, ampere meter and control assembly, and voltmeter and ampere meter all are connected with the connecting seat electricity, and voltmeter, ampere meter and display module all are connected with the control assembly electricity, and the control assembly can control voltmeter and ampere meter and detect, and voltmeter and ampere meter detected voltage and electric current can feed back to the control assembly, and the control assembly can be with voltage and current transmission to display module. Voltmeter, ammeter and control assembly all set up in quick-witted case 5, and the display module sets up on the lateral wall of quick-witted case 5. The display component comprises a voltage display screen 41, a current display screen 42 and a working voltage display screen 43, wherein the voltage display screen 41, the current display screen 42 and the working voltage display screen 43 are all arranged on the side wall of the case 5 and are electrically connected with the control component. After the control component controls the voltmeter and the ammeter to detect the voltage and the current of the workpiece to be tested, the tested voltage value and the tested current value are displayed through the voltage display screen 41 and the current display screen 42 so as to be judged by a tester.

The test tool further comprises a control switch, a qualified display lamp and an unqualified display lamp, and the control switch, the qualified display lamp and the unqualified display lamp are all electrically connected with the control assembly. The control assembly can automatically judge whether the tested voltage value and current value of the testing system are correct according to the set numerical value, and if the tested voltage and current are qualified, the control assembly controls the qualified display lamp to be on to indicate that the voltage and current of the workpiece to be tested are qualified. If at least one of the voltage and the current is unqualified, the control component controls the unqualified display lamp to light up. The control switch can control whether to electrify the control assembly, and further control whether the control assembly, the voltmeter and the ammeter work.

The test tool further comprises an identification component 6 which is electrically connected with the control component and arranged on the supporting seat 2. The identification component 6 is used for identifying the ID of the workpiece to be tested and feeding the ID back to the control component. The identification component 6 is specifically a bar code scanner, a bar code or a two-dimensional code is printed on the workpiece to be tested, and the identification component 6 can scan the bar code or the two-dimensional code to obtain the ID of the workpiece to be tested. The case 5 is provided with a connecting interface, the connecting interface is electrically connected with the control assembly, the connecting interface can be connected with an upper computer, and the control assembly can transmit the ID, the voltage and the current to the upper computer. And the upper computer stores the ID, the voltage and the current, so that subsequent voltage and current searching and tracking are facilitated.

The workpiece to be tested is placed in the limiting groove 11, the driving piece drives the clamping piece to be matched with the placing table 1 to clamp the workpiece to be tested, the workpiece to be tested is enabled to be in butt joint with the probe, the testing system tests the voltage and the current of the workpiece to be tested, and the display assembly displays the voltage and the current measured by the testing system. The test tool can position and detect a workpiece to be tested, the test mode ensures that the test contact points are consistent at every time, manual test operation is not needed, the test mode is simple and quick, efficiency is high, errors are small, and test accuracy is improved.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a test fixture which characterized in that includes:

the placing table (1) is provided with a limiting groove (11), and a workpiece to be tested is placed in the limiting groove (11);

the connecting seat is arranged below the placing table (1), a plurality of probes are arranged on the connecting seat, and the probes can be abutted to the workpiece to be tested;

the supporting seat (2) is provided with a sliding rod, and the sliding rod is perpendicular to the placing table (1);

the clamping assembly comprises a driving part and a clamping part, the clamping part is arranged on the sliding rod in a sliding mode, the driving part can drive the clamping part to be matched with the placing table (1) to clamp the workpiece to be tested, and the workpiece to be tested is enabled to be abutted to the probe;

the clamping piece comprises a clamping plate (31) and a plurality of abutting columns (32) arranged on the clamping plate (31), each abutting column (32) comprises a connecting part and an elastic contact part, each connecting part is connected to the clamping plate (31), and each elastic contact part can abut against the workpiece to be tested;

2. The test tool according to claim 1, wherein the test system comprises a voltmeter, an ammeter and a control component, the voltmeter and the ammeter are electrically connected with the connecting seat, the voltmeter, the ammeter and the display component are electrically connected with the control component, the control component can control the voltmeter and the ammeter to detect, the voltage and the current detected by the voltmeter and the ammeter can be fed back to the control component, and the control component can transmit the voltage and the current to the display component.

3. The test tool according to claim 2, further comprising a case (5), wherein the placing table (1) is arranged on the case (5), the voltmeter, the ammeter and the control component are all arranged in the case (5), and the display component is arranged on a side wall of the case (5).

4. The test tool according to claim 3, further comprising a control switch, a qualified display lamp and a unqualified display lamp, wherein the control switch, the qualified display lamp and the unqualified display lamp are electrically connected with the control assembly.

5. The test tool according to claim 4, further comprising an identification component (6) electrically connected with the control component, wherein the identification component (6) is used for identifying the ID of the workpiece to be tested and feeding the ID back to the control component.

6. The test tool according to claim 5, wherein a connection interface is arranged on the case (5), the connection interface is electrically connected with the control component, the connection interface can be connected with an upper computer, and the control component can transmit the ID, the voltage and the current to the upper computer.

7. The test fixture according to claim 1, wherein the driving member comprises a four-bar linkage assembly and a handle arranged on the four-bar linkage assembly, the four-bar linkage assembly is fixed on the support base (2), and the clamping plate (31) is connected to the four-bar linkage assembly.

8. The test tool according to claim 2, wherein the display assembly comprises a voltage display screen (41), a current display screen (42) and a working voltage display screen (43), and the voltage display screen (41), the current display screen (42) and the working voltage display screen (43) are all electrically connected with the control assembly.