CN219533237U

CN219533237U - Two four-wire test fixture

Info

Publication number: CN219533237U
Application number: CN202320548381.1U
Authority: CN
Inventors: 苏宝军
Original assignee: Dongguan Lianwei Electronic Co ltd
Current assignee: Dongguan Lianwei Electronic Co ltd
Priority date: 2023-03-17
Filing date: 2023-03-17
Publication date: 2023-08-15
Anticipated expiration: 2033-03-17

Abstract

The utility model belongs to the technical field of PCB board testing, and particularly relates to a two-four-wire testing jig which comprises a lifting assembly and a testing assembly; the lifting assembly comprises a top plate and a lifting rod, a pressing plate is fixedly connected to the lifting rod, and a plurality of pressing columns are connected to the bottom side of the pressing plate; the test assembly comprises a needle plate and a probe, the end part of the needle plate is connected with a guide sleeve, a guide rod is movably arranged in the guide sleeve in a penetrating mode, the inner side of the guide rod is connected with a base plate, the bottom side of the base plate is connected with a supporting plate, the bottom side of the supporting plate is connected with a positioning plate, and the bottom side of the positioning plate is connected with a control panel. According to the two-four-wire test fixture provided by the utility model, the test equipment drives the top plate to descend, the top plate drives the lifting rod, the pressing plate and the pressing column to descend, the pressing column presses the needle plate downwards, the needle plate descends along the guide rod through the guide sleeve, the probe is driven to descend, the probe contacts with the PCB, and the points on the PCB are tested, so that manual operation can be replaced, the automation degree is high, and the working efficiency is high.

Description

Two four-wire test fixture

Technical Field

The utility model belongs to the technical field of PCB testing, and particularly relates to a two-four wire testing jig.

Background

The on-line test fixture is a standard test device for testing the electrical performance and electrical connection of on-line components to check production and manufacturing defects and poor components, is mainly used for checking on-line single components and on-off and short circuit conditions of various circuit networks, and has the characteristics of simplicity in operation, rapidness, accuracy in fault positioning and the like. Most of the existing online tests are test modes of manually matching with a machine, and high manual participation is needed, so that the degree of automation is low, and the working efficiency is low.

Disclosure of Invention

The utility model aims to provide a two-four wire test fixture, and aims to solve the technical problems of high manual participation, low automation degree and low working efficiency in the prior art.

In order to achieve the above purpose, the two-four wire test fixture provided by the embodiment of the utility model comprises a lifting component and a test component, wherein the test component is arranged at the bottom of the lifting component and is movably connected with the lifting component; the lifting assembly comprises a top plate and a lifting rod, the lifting rod is connected to the bottom side of the top plate, a pressing plate is fixedly connected to the lifting rod, and a plurality of pressing columns are connected to the bottom side of the pressing plate; the test assembly comprises a needle plate and a probe, the probe penetrates through the needle plate, a sliding groove is formed in the needle plate, the lifting rod movably penetrates through the sliding groove, the end portion of the needle plate is connected with a guide sleeve, a guide rod is movably penetrated in the guide sleeve, a spring is sleeved outside the guide rod, the inner side of the guide rod is connected with a base plate, the bottom side of the base plate is connected with a supporting plate, the bottom side of the supporting plate is connected with a positioning plate, and the bottom side of the positioning plate is connected with a control panel.

As an alternative scheme of the utility model, the top side of the top plate is fixedly connected with a fixing seat.

As an alternative scheme of the utility model, two pressing columns are arranged and are fixedly connected to the bottom side of the pressing plate.

As an alternative of the present utility model, the probes are provided in a plurality and uniformly arranged on the needle plate.

As an alternative scheme of the utility model, the guide sleeve is hollow, sleeved on the outer side of the guide rod and movably connected with the guide rod.

As an alternative scheme of the utility model, the supporting plate is L-shaped, one end of the supporting plate is fixedly connected with the base plate, and the other end of the supporting plate is fixedly connected with the positioning plate.

The above technical solutions in the two-four wire test fixture provided by the embodiments of the present utility model have at least one of the following technical effects:

the two-four-wire test fixture provided by the utility model is connected with the online test equipment through the fixing seat, the test equipment drives the top plate to descend, the top plate drives the lifting rod, the pressing plate and the pressing column to descend, the pressing column presses the needle plate downwards, the needle plate descends along the guide rod through the guide sleeve, the probe is driven to descend, the probe contacts with the PCB and tests the point on the PCB, and the two-four-wire test fixture provided by the utility model can be well suitable for automatic online equipment, can replace manual operation, and has high automation degree and high working efficiency.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a two-four wire test fixture according to an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a lifting assembly of a two-four wire test fixture according to an embodiment of the present utility model.

Fig. 3 is a schematic structural diagram of a test assembly of the two-four wire test fixture according to an embodiment of the present utility model.

Wherein, each reference sign in the figure:

1. a lifting assembly; 2. a testing component;

11. a top plate; 12. a lifting rod; 13. a pressing plate; 14. pressing a column; 15. a fixing seat;

21. a needle plate; 22. a probe; 23. guide sleeve; 24. a guide rod; 25. a spring; 26. a substrate; 27. a support plate; 28. a positioning plate; 29. and a control panel.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and intended to illustrate embodiments of the utility model and should not be construed as limiting the utility model.

In the description of the embodiments of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the embodiments of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present utility model, the meaning of "plurality" is two or more, unless explicitly defined otherwise.

In the embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like are to be construed broadly and include, for example, either permanently connected, removably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present utility model will be understood by those of ordinary skill in the art according to specific circumstances.

In one embodiment of the present utility model, as shown in fig. 1 to 3, a two-four wire test fixture is provided, including a lifting assembly 1 and a test assembly 2, wherein the test assembly 2 is disposed at the bottom of the lifting assembly 1 and is movably connected with the lifting assembly 1; the lifting assembly 1 comprises a top plate 11 and a lifting rod 12, wherein the lifting rod 12 is fixedly connected to the bottom side of the top plate 11, a pressing plate 13 is fixedly connected to the lifting rod 12, and a plurality of pressing columns 14 are fixedly connected to the bottom side of the pressing plate 13; the test assembly 2 comprises a needle plate 21 and a probe 22, the probe 22 is arranged on the needle plate 21 in a penetrating manner, a chute is arranged on the needle plate 21, the lifting rod 12 is movably arranged in the chute in a penetrating manner, a guide sleeve 23 is fixedly connected with the end part of the needle plate 21, a guide rod 24 is movably arranged in the guide sleeve 23 in a penetrating manner, a spring 25 is sleeved outside the guide rod 24, a base plate 26 is fixedly connected inside the guide rod 24, a supporting plate 27 is fixedly connected with the bottom side of the base plate 26, a positioning plate 28 is fixedly connected with the bottom side of the supporting plate 27, and a control panel 29 is fixedly connected with the bottom side of the positioning plate 28. The two-four-wire test fixture provided by the utility model is connected with the online test equipment through the fixing seat 15, the test equipment drives the top plate 11 to descend, the top plate 11 drives the lifting rod 12, the pressing plate 13 and the pressing column 14 to descend, the pressing column 14 presses the needle plate 21 downwards, the needle plate 21 descends along the guide rod 24 through the guide sleeve 23, the probe 22 is driven to descend, the probe 22 contacts with the PCB, and the points on the PCB are tested, and the two-four-wire test fixture provided by the utility model can be well suitable for automatic online equipment, can replace manual operation, and has high automation degree and high working efficiency.

In another embodiment of the present utility model, the top side of the top plate 11 of the two-four-wire test fixture is fixedly connected with a fixing seat 15, and is connected with a test device through the fixing seat 15, and the control panel 29 is electrically connected with the test device, and feeds back a switching signal of the test result to the test device.

In another embodiment of the present utility model, two pressing columns 14 of the two-four-wire test fixture are provided and are fixedly connected to the bottom side of the pressing plate 13.

In another embodiment of the present utility model, the probes 22 of the two-four wire test fixture are provided with a plurality of probes and are uniformly arranged on the needle board 21, specifically, the probes 22 are provided with two or four probes, so as to realize two-wire or four-wire point test of the PCB board.

In another embodiment of the present utility model, the guide sleeve 23 of the two-four wire test fixture is hollow, sleeved outside the guide rod 24, and movably connected with the guide rod 24, and the needle plate 21 is movably connected with the guide rod 24 through the guide sleeve 23.

In another embodiment of the present utility model, the support plate 27 of the two-four wire test fixture is L-shaped, and one end of the support plate 27 is fixedly connected with the substrate 26, and the other end is fixedly connected with the positioning plate 28.

The two-four-wire test fixture provided by the utility model is connected with the online test equipment through the fixing seat 15, the test equipment drives the top plate 11 to descend, the top plate 11 drives the lifting rod 12, the pressing plate 13 and the pressing column 14 to descend, the pressing column 14 presses the needle plate 21 downwards, the needle plate 21 descends along the guide rod 24 through the guide sleeve 23, the probe 22 is driven to descend, the probe 22 contacts with the PCB, and the points on the PCB are tested.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The two-four wire test fixture is characterized by comprising a lifting assembly and a test assembly, wherein the test assembly is arranged at the bottom of the lifting assembly and is movably connected with the lifting assembly; the lifting assembly comprises a top plate and a lifting rod, the lifting rod is connected to the bottom side of the top plate, a pressing plate is fixedly connected to the lifting rod, and a plurality of pressing columns are connected to the bottom side of the pressing plate; the test assembly comprises a needle plate and a probe, the probe penetrates through the needle plate, a sliding groove is formed in the needle plate, the lifting rod movably penetrates through the sliding groove, the end portion of the needle plate is connected with a guide sleeve, a guide rod is movably penetrated in the guide sleeve, a spring is sleeved outside the guide rod, the inner side of the guide rod is connected with a base plate, the bottom side of the base plate is connected with a supporting plate, the bottom side of the supporting plate is connected with a positioning plate, and the bottom side of the positioning plate is connected with a control panel.

2. The two-four wire test fixture according to claim 1, wherein a fixing base is fixedly connected to the top side of the top plate.

3. The two-four wire test fixture according to claim 1, wherein two press posts are provided and are fixedly connected to the bottom side of the press plate.

4. The two-four wire test fixture according to claim 1, wherein the probes are provided in a plurality and are uniformly arranged on the needle plate.

5. The two-four wire test fixture according to claim 1, wherein the guide sleeve is hollow, sleeved on the outer side of the guide rod and movably connected with the guide rod.

6. The two-four wire test fixture according to claim 1, wherein the support plate is L-shaped, one end of the support plate is fixedly connected with the base plate, and the other end of the support plate is fixedly connected with the positioning plate.