CN213364974U

CN213364974U - Test tool fixture for detecting PCBA circuit

Info

Publication number: CN213364974U
Application number: CN202022744823.9U
Authority: CN
Inventors: 缪卫健; 赵祥文; 陶再普
Original assignee: Nantong Minghao New Energy Technology Co ltd
Current assignee: Nantong Minghao New Energy Technology Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-06-04
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses a test tool fixture for detecting PCBA circuit, which comprises a frame, a working table, a needle die pressing cylinder and a needle die fixing plate; a working table top is arranged on the upper surface of the frame; a placing groove for placing the test board is arranged on the working table surface; a fixed bracket is arranged on the working table surface; a needle die pressing cylinder is arranged on the fixed support; the needle die pressing cylinder is connected with the needle die fixing plate and drives the needle die fixing plate to move up and down; a coil jacking cylinder and a coil translation cylinder are arranged in the rack below the working table; the coil translation cylinder is connected with the movable bottom plate and drives the movable bottom plate to transversely move; a coil jacking cylinder is arranged on the movable bottom plate; a sensor fixing support is arranged on the coil jacking cylinder; and a pressure sensor is arranged on the sensor fixing support. The utility model is used for whether detect PCBA circuit and switch on normally.

Description

Test tool fixture for detecting PCBA circuit

Technical Field

The utility model relates to a test fixture, concretely relates to test fixture tool for detecting PCBA circuit.

Background

Printed circuit boards, also known as printed circuit boards (pcbs), often referred to by the acronym pcb (printed circuit board), are important electronic components, support for electronic components, and providers for connecting electronic components and circuits. PCBA is the abbreviation of English Printed Circuit Board + Assembly, that is to say PCB blank Board is through SMT upper piece, and then through the whole process of DIP plug-in components, is called PCBA for short, and its plug-in components finished product is called PCBA Board.

In order to prevent a circuit in a PCB from breaking and causing conduction failure or short-circuiting with another circuit and causing insulation failure, it is necessary to electrically check whether or not the circuit is formed as designed. In order to ensure the delivery quality of the PCB, after the manufacturing process is completed, it is necessary to detect whether the circuit of the circuit is normal, and at this time, the circuit board needs to be detected on a test fixture.

Disclosure of Invention

In order to solve the problem, the utility model provides a test fixture tool for detecting PCBA circuit for whether detect PCBA circuit and switch on normally.

The technical scheme of the utility model is that: the utility model discloses a test tool fixture for detecting PCBA circuit, which comprises a frame, a working table, a needle die pressing cylinder and a needle die fixing plate;

a working table top is arranged on the upper surface of the frame; a placing groove for placing the test board is arranged on the working table surface; a fixed bracket is arranged on the working table surface; a needle die pressing cylinder is arranged on the fixed support; the needle die pressing cylinder is connected with the needle die fixing plate and drives the needle die fixing plate to move up and down;

a coil jacking cylinder and a coil translation cylinder are arranged in the rack below the working table; the coil translation cylinder is connected with the movable bottom plate and drives the movable bottom plate to transversely move; a coil jacking cylinder is arranged on the movable bottom plate;

a sensor fixing support is arranged on the coil jacking cylinder; and a pressure sensor is arranged on the sensor fixing support.

Further, linear bearings are arranged on two sides of the needle die; a guide optical axis is arranged on the working table surface; the linear bearing moves up and down along the guide optical axis.

Furthermore, two coil jacking cylinders are arranged on the movable bottom plate; and the two coil jacking cylinders are respectively provided with a pressure sensor and a reflection-type sensor.

Furthermore, positioning pins are arranged on two sides of the placing groove, and positioning holes matched with the positioning pins are formed in the test board.

Further, the placing groove is a through groove.

The utility model has the advantages that: the needle mould pushes down the air cylinder and pushes down, and the panel for fixing the probe is vertically downward under the guide of the linear bearing, so that the probe is in contact with the PCBA detection point. Then the jacking cylinder moves, and the fixed sensor approaches to the PCBA board; and under the condition that the PCB is powered on, typical values such as a voltage value, a current value and the like of the test circuit are obtained, so that whether the tested circuit is normally conducted or not is observed. The pressure sensor is used for detecting the pressure value of the downward pressing of the jacking cylinder, and when the pressure value is too large, the downward pressing cylinder stops working.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the interior of the housing.

Detailed Description

The technical solution of the present invention will be described clearly and completely through the following detailed description.

In the description of the present invention, it is to be understood that the terms "middle", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In addition, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by 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 but via another feature therebetween. 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.

Referring to fig. 1 and 2, a testing tool fixture for detecting a PCBA circuit of the present invention includes a frame 1, a table top 2, a needle mold 3, a needle mold pressing cylinder 4, and a needle mold fixing plate 5;

the upper surface of the frame 1 is provided with a working table surface 2; a placing groove for placing the test board is arranged on the working table surface 2; the working table surface 2 is provided with a fixed bracket 6; a needle mold pressing cylinder 4 is arranged on the fixed support 6; the needle die pressing cylinder 4 is connected with the needle die fixing plate 5 and drives the needle die fixing plate 5 to move up and down;

a coil jacking cylinder 8 and a coil translation cylinder 9 are arranged below the working table surface in the rack 1; the coil translation cylinder 9 is connected with the movable bottom plate 10 and drives the movable bottom plate 10 to transversely move; a coil jacking cylinder 8 is arranged on the movable bottom plate 10;

a sensor fixing bracket 11 is arranged on the coil jacking cylinder 8; the sensor fixing bracket 11 is provided with a pressure sensor 12.

Further, linear bearings are arranged on two sides of the needle die 3; a guide optical axis 7 is arranged on the working table surface 2; the linear bearing moves up and down along the guide optical axis.

Furthermore, two coil jacking cylinders 8 are arranged on the movable bottom plate 10; the two coil lifting cylinders 8 are respectively provided with a pressure sensor 12 and a reflection-type sensor 13.

Further, the placing groove is a through groove.

The utility model discloses when examining test, the needle mould pushes down the cylinder and pushes down, and the panel of fixed probe is perpendicular downwards under linear bearing's direction, makes probe and PCBA survey point contact. Then the jacking cylinder moves, and the fixed sensor approaches to the PCBA board; and under the condition that the PCB is powered on, typical values such as a voltage value, a current value and the like of the test circuit are obtained, so that whether the tested circuit is normally conducted or not is observed.

The pressure sensor 12 is used for detecting the pressure value of the downward pressing of the jacking cylinder, and when the pressure value is overlarge, the downward pressing cylinder stops working.

The reflective sensor 13 is used to detect whether the panel is protected from the test board.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications or equivalent substitutions within the spirit and scope of the present invention, and such modifications or equivalent substitutions should also be considered as falling within the scope of the present invention.

Claims

1. A test fixture tool for detecting PCBA circuit, its characterized in that: comprises a frame (1), a working table surface (2), a needle die (3), a needle die pressing cylinder (4) and a needle die fixing plate (5);

a working table top (2) is arranged on the upper surface of the rack (1); a placing groove for placing the test board is formed in the working table top (2); a fixed bracket (6) is arranged on the working table top (2); a needle die pressing cylinder (4) is arranged on the fixed support (6); the needle die pressing cylinder (4) is connected with the needle die fixing plate (5) and drives the needle die fixing plate (5) to move up and down;

a coil jacking cylinder (8) and a coil translation cylinder (9) are arranged below the working table surface in the rack (1); the coil translation cylinder (9) is connected with the movable bottom plate (10) and drives the movable bottom plate (10) to transversely move; a coil jacking cylinder (8) is arranged on the movable bottom plate (10);

a sensor fixing support (11) is arranged on the coil jacking cylinder (8); and a pressure sensor (12) is arranged on the sensor fixing support (11).

2. The test tool fixture for detecting PCBA circuits according to claim 1, wherein: linear bearings are arranged on two sides of the needle die (3); a guide optical axis (7) is arranged on the working table top (2); the linear bearing moves up and down along the guide optical axis.

3. The test tool fixture for detecting PCBA circuits according to claim 1, wherein: two coil jacking cylinders (8) are arranged on the movable bottom plate (10); and the two coil jacking cylinders (8) are respectively provided with a pressure sensor (12) and a reflection-type sensor (13).

4. The test tool fixture for detecting PCBA circuits according to claim 1, wherein: positioning pins are arranged on two sides of the placing groove, and positioning holes matched with the positioning pins are formed in the test board.

5. The test tool fixture for detecting PCBA circuits according to claim 1, wherein: the placing groove is a through groove.