PCBA performance detection tool

Abstract

The utility model relates to the technical field of detection tools, and discloses a PCBA performance detection tool which comprises a machine base, a plurality of elastic probes are installed at the upper end of the machine base, a reset assembly is arranged at the upper end of the machine base, a detachable positioning frame is arranged on the reset assembly, and the positioning frame is located above the elastic probes. A plurality of through holes corresponding to PCB testing points are formed in the upper end of the positioning frame, a plurality of positioning rods are fixed to the upper end of the positioning frame, a downward pressing mechanism is arranged at the upper end of the machine base, a downward pressing frame is arranged on the downward pressing mechanism, and the elastic probes and the detachable positioning frame are arranged, so that the positioning frame of the corresponding specification can be replaced according to the PCB of the required specification; the problem that an existing detection tool can only detect the performance of a PCB of one specification is solved, the number of the detection tools is reduced, the occupied field area is reduced, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of testing tooling technology, specifically to a PCBA performance testing tooling. Background Technology

[0002] PCBA is the entire process of a bare PCB board undergoing surface mount technology (SMT) or DIP component insertion. It is widely used in electronic products. In recent years, with the popularization of electronic products, the reliance on PCBA boards has become increasingly higher. How to produce high-quality PCBA boards quickly, efficiently, and with high quality depends on the testing fixtures. Only good PCBA testing fixtures can guarantee the production of high-quality PCBAs and further promote the popularization of electronic products.

[0003] Currently, the working principle of existing testing fixtures is usually as follows: first, the PCB board is placed on the carrier plate and positioned and fixed to ensure that the PCB board is aligned with the bottom probe. Then, the PCB board is pressed down so that the probe contacts the test point on the PCB board, thereby enabling the performance testing of the PCB board.

[0004] In the above solution, there are many types of existing PCB boards, and the test points of different PCB boards are different. It is necessary to configure test fixtures one by one, which not only results in a large number of test fixtures and a large space occupation, but also increases production costs. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a PCBA performance testing fixture. By providing an elastic probe and a detachable positioning frame, the positioning frame can be replaced with the corresponding specification according to the required PCB board specification. This solves the problem that the existing testing fixtures can only test the performance of one type of PCB board, thereby reducing the number of testing fixtures, reducing the space occupied, and lowering production costs.

[0006] The solution of this utility model to the aforementioned technical problem is:

[0007] A PCBA performance testing fixture includes a base, a plurality of elastic probes mounted on the upper end of the base, a reset assembly provided on the upper end of the base, a detachable positioning frame provided on the reset assembly, the positioning frame being located above the plurality of elastic probes, a plurality of through holes corresponding to the test points of the PCB board being formed on the upper end of the positioning frame, a plurality of positioning rods being fixed on the upper end of the positioning frame, and a pressing mechanism provided on the upper end of the base, the pressing mechanism being provided with a pressing frame.

[0008] When PCB board performance testing is required, the corresponding positioning frame is installed on the reset assembly according to the required PCB board specifications. This allows for testing different specifications of PCB boards simply by changing the positioning frame, reducing the number of testing fixtures, the occupied space, and production costs. The PCB board insert is then placed on multiple positioning rods, aligning several test points with several through holes on the PCB board. The pressing mechanism is activated, moving the pressing frame downwards so that it presses against the upper end of the positioning frame, which in turn moves the positioning frame downwards. This downward movement of the positioning frame moves the PCB board downwards, allowing some elastic probes to pass through the through holes and contact the test points on the PCB board. Other elastic probes are compressed and contracted by the positioning frame, preventing them from interfering with the contact between the remaining probes and the test points on the PCB board. This allows for PCB board performance testing. After the PCB board performance testing is completed, the pressing frame is reset, and the positioning frame is also reset by the reset assembly, allowing for the PCB board performance testing to resume.

[0009] By incorporating elastic probes and detachable positioning frames, the positioning frames can be replaced with the corresponding specifications according to the required PCB board specifications. This solves the problem that existing testing fixtures can only perform performance testing on one type of PCB board, thereby reducing the number of testing fixtures, reducing the space occupied, and lowering production costs.

[0010] The utility model is further configured such that: the reset assembly includes multiple reset rods fixed to the upper end of the base, and threaded sleeves and compression springs are inserted into the side walls of the reset rods. The compression springs are located between the reset rods and the threaded sleeves, with one end of the compression spring fixed to the upper end of the reset rod and the other end of the compression spring fixed to the lower end of the threaded sleeve. The positioning frame is simultaneously inserted into multiple threaded sleeves.

[0011] The above technical solution enables the positioning frame to move downwards, and under the action of multiple compression springs, the positioning frame can automatically reset.

[0012] The utility model is further configured such that: the detachable positioning frame includes a knob screwed onto the threaded sleeve, and the positioning frame is located between the knob and the threaded sleeve.

[0013] With the above technical solution, when it is necessary to disassemble and replace the positioning frame of the required specifications, turn multiple knobs to remove them, thereby removing the positioning frame. Then, insert the positioning frame of the required specifications onto multiple threaded sleeves, and screw multiple knobs onto the threaded sleeves, with the lower end of the knobs pressing against the upper end of the positioning frame, thereby fixing the positioning frame in the required position.

[0014] The utility model is further configured such that: the pressing mechanism includes a guide assembly and a pressing assembly, the guide assembly includes two guide rods symmetrically fixed to the upper end of the base, and the upper end of the pressing frame has two guide sleeves symmetrically fixed to cooperate with the guide rods.

[0015] The above technical solution enables the lower pressure frame to move in a designated direction, ensuring that the lower pressure frame will not tilt or vibrate during movement.

[0016] The utility model is further configured such that: the pressing component includes a connecting frame fixed on the side wall of the base, a rotating arm rotatably connected inside the connecting frame, a handle fixed inside the rotating arm, a connecting rod rotatably connected inside the rotating arm, a sliding rod inserted into the connecting frame, the connecting rod rotatably connected to the upper end of the sliding rod, and the pressing frame fixed on the protruding end of the sliding rod that passes through the connecting frame.

[0017] With the above technical solution, when it is necessary to move the lower pressure frame, the handle is rotated, the handle rotates, the rotating arm rotates, the rotating arm rotates, the connecting rod rotates, and the connecting rod rotates, which in turn moves the sliding rod, thereby moving the lower pressure frame.

[0018] The beneficial effects of this utility model are:

[0019] Compared with existing technologies, by incorporating elastic probes and detachable positioning frames, the corresponding positioning frames can be replaced according to the required PCB board specifications. This solves the problem that existing testing fixtures can only perform performance testing on one type of PCB board, thereby reducing the number of testing fixtures, reducing the space occupied, and lowering production costs. Attached Figure Description

[0020] Figure 1 This is a front view of the present invention;

[0021] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0022] Figure 3 for Figure 2 A magnified view of A.

[0023] Reference numerals: 1. Base; 2. Elastic probe; 3. Positioning frame; 301. Through hole; 4. Positioning rod; 5. Lower pressure frame; 6. Reset rod; 7. Threaded sleeve; 8. Compression spring; 9. Knob; 10. Guide rod; 11. Guide sleeve; 12. Connecting frame; 13. Rotary arm; 14. Handle; 15. Connecting rod; 16. Slide rod. Detailed Implementation

[0024] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0025] The following is for reference Figures 1 to 3 This utility model will now be described.

[0026] A PCBA performance testing fixture includes a base 1, with a plurality of elastic probes 2 mounted on the upper end of the base 1. A reset assembly is provided on the upper end of the base 1, and a detachable positioning frame 3 is provided on the reset assembly. The positioning frame 3 is located above the plurality of elastic probes 2. A plurality of through holes 301 corresponding to the test points of the PCB board are formed on the upper end of the positioning frame 3. A plurality of positioning rods 4 are fixed on the upper end of the positioning frame 3. A pressing mechanism is provided on the upper end of the base 1, and a pressing frame 5 is provided on the pressing mechanism.

[0027] When PCB board performance testing is required, the corresponding positioning frame 3 is installed on the reset assembly according to the required PCB board specifications. This allows for testing of different PCB board specifications by simply replacing the positioning frame 3 with the one of the different specifications, thereby reducing the number of testing fixtures, the area occupied, and production costs. Then, the PCB board insert is placed on multiple positioning rods 4, aligning several test points on the PCB board with several through holes 301. The pressing mechanism is activated, causing the pressing frame 5 to move downwards, pressing against the upper end of the positioning frame 3. This causes the positioning frame 3 to move downwards, which in turn moves the PCB board downwards. This allows some of the elastic probes 2 to pass through the through holes 301 and contact the test points on the PCB board, while the other elastic probes 2 are compressed and contracted by the positioning frame 3, preventing them from interfering with the contact between the remaining elastic probes 2 and the test points on the PCB board. This allows for PCB board performance testing. After the PCB board performance testing is completed, the pressing frame 5 is reset, and the positioning frame 3 is also reset by the reset assembly, allowing for PCB board performance testing again.

[0028] By incorporating an elastic probe 2 and a detachable positioning frame 3, the positioning frame 3 can be replaced with the corresponding size according to the required PCB board size. This solves the problem that existing testing fixtures can only perform performance testing on one type of PCB board, thereby reducing the number of testing fixtures, reducing the occupied space, and lowering production costs.

[0029] The reset assembly includes multiple reset rods 6 fixed to the upper end of the base 1. Threaded sleeves 7 and compression springs 8 are inserted into the side walls of the reset rods 6. The compression springs 8 are located between the reset rods 6 and the threaded sleeves 7. One end of the compression springs 8 is fixed to the upper end of the reset rods 6, and the other end of the compression springs 8 is fixed to the lower end of the threaded sleeves 7. The positioning frame 3 is inserted into multiple threaded sleeves 7.

[0030] The positioning frame 3 can move downwards, and under the action of multiple compression springs 8, the positioning frame 3 can automatically reset.

[0031] The detachable positioning frame 3 includes a knob 9 screwed onto a threaded sleeve 7, with the positioning frame 3 located between the knob 9 and the threaded sleeve 7.

[0032] When it is necessary to disassemble and replace the positioning frame 3 of the required specifications, turn multiple knobs 9 to remove the multiple knobs 9, so that the positioning frame 3 can be removed. Then insert the positioning frame 3 of the required specifications onto multiple threaded sleeves 7, and then screw multiple knobs 9 onto the threaded sleeves 7, and make the lower end of the knobs 9 press against the upper end of the positioning frame 3, so that the positioning frame 3 can be fixed in the required position.

[0033] The pressing mechanism includes a guide assembly and a pressing assembly. The guide assembly includes two guide rods 10 symmetrically fixed to the upper end of the base 1, and two guide sleeves 11 that cooperate with the guide rods 10 are symmetrically fixed to the upper end of the pressing frame 5.

[0034] When the lower pressure frame 5 is moved, it can move in the specified direction, ensuring that the lower pressure frame 5 will not deviate or vibrate during movement.

[0035] The pressing assembly includes a connecting frame 12 fixed to the side wall of the base 1, a rotating arm 13 rotatably connected inside the connecting frame 12, a handle 14 fixed inside the rotating arm 13, a connecting rod 15 rotatably connected inside the rotating arm 13, a slide rod 16 inserted into the connecting frame 12, the connecting rod 15 rotatably connected to the upper end of the slide rod 16, and the pressing frame 5 fixed to the protruding end of the slide rod 16 that passes through the connecting frame 12.

[0036] When it is necessary to move the lower pressure frame 5, the handle 14 is rotated. The rotation of the handle 14 causes the rotating arm 13 to rotate. The rotation of the rotating arm 13 causes the connecting rod 15 to rotate. The rotation of the connecting rod 15 causes the sliding rod 16 to move, thereby moving the lower pressure frame 5.

[0037] Working principle:

[0038] When PCB board performance testing is required, the corresponding positioning frame 3 is inserted into multiple threaded sleeves 7 according to the required PCB board specifications. Then, multiple knobs 9 are screwed onto the threaded sleeves 7, with the lower end of the knobs 9 pressing against the upper end of the positioning frame 3, thereby fixing the positioning frame 3 in the required position. This allows for performance testing of PCB boards of different specifications only by changing the positioning frame 3 of different specifications, thus reducing the number of testing fixtures, reducing the occupied space, and lowering production costs. Then, the PCB board is inserted into multiple positioning rods 4, aligning several test points of the PCB board with several through holes 301, driving the handle 14 to rotate. The rotation of the handle 14 drives the rotating arm 13 to rotate, and the rotation of the rotating arm 13 drives the connecting rod 15. The connecting rod 15 rotates, causing the sliding rod 16 to move downwards, which in turn causes the lower pressure frame 5 to move downwards, pressing against the upper end of the positioning frame 3. This causes the positioning frame 3 to move downwards, which in turn causes the PCB board to move downwards. This allows some of the elastic probes 2 to pass through the through hole 301 and contact the test point on the PCB board, while the other elastic probes 2 are compressed and contracted by the positioning frame 3, preventing them from interfering with the contact between the other elastic probes 2 and the test point on the PCB board. This allows for PCB board performance testing. After the PCB board performance testing is completed, the lower pressure frame 5 is reset, and the positioning frame 3 is reset under the action of multiple compression springs 8, allowing for PCB board performance testing again.

[0039] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A PCBA performance testing fixture, comprising a base (1), characterized in that: The upper end of the base (1) is equipped with several elastic probes (2). The upper end of the base (1) is provided with a reset assembly. The reset assembly is provided with a detachable positioning frame (3). The positioning frame (3) is located above several elastic probes (2). The upper end of the positioning frame (3) is formed with several through holes (301) corresponding to the test points of the PCB board. The upper end of the positioning frame (3) is fixed with several positioning rods (4). The upper end of the base (1) is provided with a pressing mechanism. The pressing mechanism is provided with a pressing frame (5).

2. The PCBA performance testing fixture according to claim 1, characterized in that: The reset assembly includes multiple reset rods (6) fixed to the upper end of the base (1). Threaded sleeves (7) and compression springs (8) are inserted into the side walls of the reset rods (6). The compression springs (8) are located between the reset rods (6) and the threaded sleeves (7). One end of the compression springs (8) is fixed to the upper end of the reset rods (6), and the other end of the compression springs (8) is fixed to the lower end of the threaded sleeves (7). The positioning frame (3) is inserted into multiple threaded sleeves (7) at the same time.

3. The PCBA performance testing fixture according to claim 2, characterized in that: The detachable positioning bracket (3) includes a knob (9) screwed onto a threaded sleeve (7), with the positioning bracket (3) located between the knob (9) and the threaded sleeve (7).

4. The PCBA performance testing fixture according to claim 1, characterized in that: The pressing mechanism includes a guide assembly and a pressing assembly. The guide assembly includes two guide rods (10) symmetrically fixed to the upper end of the base (1). The upper end of the pressing frame (5) has two guide sleeves (11) symmetrically fixed to cooperate with the guide rods (10).

5. The PCBA performance testing fixture according to claim 1, characterized in that: The pressing assembly includes a connecting frame (12) fixed on the side wall of the base (1), a rotating arm (13) rotatably connected inside the connecting frame (12), a handle (14) fixed inside the rotating arm (13), a connecting rod (15) rotatably connected inside the rotating arm (13), a slide rod (16) inserted into the connecting frame (12), the connecting rod (15) rotatably connected to the upper end of the slide rod (16), and the pressing frame (5) fixed on the extended end of the slide rod (16) that passes through the connecting frame (12).

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