Testing device for circuit board production

Abstract

The utility model discloses and provides a testing device for circuit board production, which comprises a base, a top plate is fixedly mounted at the top end of the base, a material placing seat is fixedly mounted at the top end of the top plate, a limiting chute is formed in the outer surface of the top end of the material placing seat, and two groups of fixing seats are fixedly mounted on the inner wall of the limiting chute; the PCBA testing frame comprises two groups of fixing seats, circular through grooves are formed in the outer surfaces of the two groups of fixing seats, two-way lead screws are movably mounted in the circular through grooves, one end of each two-way lead screw is connected with a motor, and a clamping plate is movably mounted on the outer surface of each two-way lead screw. Therefore, the adaptability and the flexibility of the testing frame are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA board test fixtures, and particularly to a test device for circuit board production. Background Art

[0002] In the electronic manufacturing industry, the testing of PCBA (Printed Circuit Board Assembly) boards is an essential part of the production process. Through testing, it can be ensured that all components on the PCBA board are correctly connected, undamaged, and meet their predetermined functional requirements. However, there are some problems in the design of existing PCBA board test fixtures, which limit their flexibility and reliability in practical applications.

[0003] Firstly, most existing PCBA board test fixtures use fixed-size clamps or slots to fix the PCBA boards to be tested. This design method makes it difficult for the test fixture to adapt to PCBA boards of different sizes, thus limiting the scope of use of the test fixture. Secondly, when applying test pressure, existing PCBA board test fixtures usually use a fixed pressure or manual pressure adjustment method. This method is difficult to adapt to the test pressures required by different PCBA boards, which may lead to poor test results or damage to the PCBA boards. On the one hand, if the test pressure is too small, it may not ensure that all components on the PCBA board are fully tested; on the other hand, if the test pressure is too large, it may damage the sensitive components on the PCBA board, causing unnecessary losses. Content of the Utility Model

[0004] (I) Purpose of the Utility Model

[0005] In view of this, the purpose of the present utility model is to provide a test device for circuit board production, which solves the problems raised in the above background.

[0006] (II) Technical Solution

[0007] A test device for circuit board production includes a base. A top plate is fixedly installed at the top of the base, and a bracket is fixedly installed at the top of the top plate. A cylinder is fixedly installed at the top of the bracket, and one end of the cylinder is connected to a sliding plate. A detection plate is fixedly installed at the bottom of the sliding plate. A plurality of metal probes are fixedly installed on the outer surface of the bottom of the detection plate, and a pressure adjustment rod is arranged in the middle of the bottom side of the detection plate. A material placement seat is fixedly installed at the top of the top plate, and a limit sliding groove is opened on the outer surface of the top of the material placement seat. Two fixed seats are fixedly installed on the inner wall of the limit sliding groove, and circular through grooves are opened on the outer surfaces of the two fixed seats. A bidirectional lead screw is movably installed in each circular through groove. One end of the bidirectional lead screw is connected to a motor, and a clamping plate is movably installed on the outer surface of the bidirectional lead screw.

[0008] Preferably, protective plates are fixedly installed at the tops of the two groups of fixed seats.

[0009] Preferably, the outer surface of the clamping plate is wrapped with rubber.

[0010] Preferably, the fixed seat is fixedly connected to the motor.

[0011] Preferably, two groups of fixing blocks are fixedly installed on both sides of the inner wall of the bracket, and a limiting rod is connected to one side of the two groups of fixing blocks, and a sliding plate is movably installed on the outer surface of the limiting rod.

[0012] Preferably, an installation groove is opened at the middle end of the bottom side of the detection plate, and an installation block is installed on the inner wall of the installation groove. One end of the installation block is connected to a damper, and one end of the damper is connected to a pressure adjusting rod. A spring is connected between the installation block and the pressure adjusting rod.

[0013] Preferably, a pressure sensor is arranged at one end of the pressure adjusting rod.

[0014] From the above technical solutions, it can be seen that the present application has the following beneficial effects:

[0015] 1. The pressure adjusting mechanism composed of the pressure adjusting rod, the damper, the spring and the pressure sensor in this utility model can automatically adjust the test pressure according to the characteristics of the PCBA board, avoiding the risk of damaging the PCBA board due to excessive test pressure. This adaptive pressure adjustment mechanism ensures the accuracy and safety of the test, and solves the problem of difficult adaptive pressure mentioned in the background technology.

[0016] 2. Through the design of driving the bidirectional lead screw and the clamping plate by the motor in this utility model, the test rack can easily clamp PCBA boards of different sizes, thus greatly improving the adaptability and flexibility of the test rack. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the first three-dimensional structure schematic diagram of the present utility model;

[0018] Figure 2 is the second three-dimensional structure schematic diagram of the present utility model;

[0019] Figure 3 is the structure schematic diagram of the clamping mechanism of the present utility model;

[0020] Figure 4 is the side view mechanism structure schematic diagram of the present utility model;

[0021] Figure 5 is the present utility model Figure 3 The enlarged schematic diagram at A in.

[0022] In the figure: 1, base; 2, bracket; 3, cylinder; 4, sliding plate; 5, material placing seat; 6, clamping plate; 7, fixing block; 8, limiting rod; 9, detection plate; 911, metal probe; 912, pressure adjusting rod; 913, installation groove; 914, installation block; 915, damper; 916, spring; 917, pressure sensor; 611, limiting sliding groove; 612, bidirectional lead screw; 613, protection plate; 614, fixing seat; 615, motor; 111, top plate. Detailed implementation manners

[0023] The following description is essentially exemplary only and is not intended to limit the present disclosure, application, and uses. It should be understood that in all these drawings, the same or similar reference numerals indicate the same or similar parts and features. Each drawing only schematically shows the concept and principle of the implementation manner of the present disclosure, and does not necessarily show the specific dimensions and their ratios of each implementation manner of the present disclosure. Specific parts in a specific drawing may be exaggerated to illustrate relevant details or structures of the implementation manner of the present disclosure.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present utility model:

[0025] A testing device for circuit board production, including a base 1, a top plate 111 is fixedly installed at the top end of the base 1, and a bracket 2 is fixedly installed at the top end of the top plate 111. A cylinder 3 is fixedly installed at the top end of the bracket 2, and one end of the cylinder 3 is connected to a sliding plate 4. A detection plate 9 is fixedly installed at the bottom end of the sliding plate 4. A plurality of metal probes 911 are fixedly installed on the outer surface of the bottom end of the detection plate 9, and a pressure adjusting rod 912 is arranged in the middle at the bottom side of the detection plate 9. A material placing seat 5 is fixedly installed at the top end of the top plate 111, and a limiting sliding groove 611 is opened on the outer surface of the top end of the material placing seat 5. Two fixing seats 614 are fixedly installed on the inner wall of the limiting sliding groove 611, and circular through grooves are opened on the outer surfaces of the two fixing seats 614. A bidirectional lead screw 612 is movably installed in the circular through grooves, one end of the bidirectional lead screw 612 is connected to a motor 615, and a clamping plate 6 is movably installed on the outer surface of the bidirectional lead screw 612.

[0026] Furthermore, protection plates 613 are fixedly installed at the top ends of the two fixing seats 614, and the protection plates 613 are used to protect the motor 615.

[0027] Furthermore, the outer surface of the clamping plate 6 is wrapped with rubber, and the rubber can increase the friction between the clamping plate and the PCBA board, prevent the PCBA board from sliding or shifting during the testing process, and improve the accuracy and stability of the testing.

[0028] Further, the fixed seat 614 is fixedly connected to the motor 615. The fixed connection ensures that when the motor 615 drives the bidirectional lead screw 612, the entire clamping mechanism can operate stably, reducing the test errors caused by structural looseness.

[0029] Further, two groups of fixing blocks 7 are fixedly installed on both sides of the inner wall of the bracket 2, and a limiting rod 8 is connected to one side of the two groups of fixing blocks 7. A sliding plate 4 is movably installed on the outer surface of the limiting rod 8. The fixing blocks 7 and the limiting rod 8 provide a stable sliding track for the sliding plate 4, ensuring that the sliding plate 4 can be lifted and lowered smoothly under the drive of the cylinder 3, thereby improving the accuracy and reliability of the test.

[0030] Further, an installation groove 913 is opened at the middle end of the bottom side of the detection plate 9, and an installation block 914 is installed on the inner wall of the installation groove 913. One end of the installation block 914 is connected to a damper 915, and one end of the damper 915 is connected to a pressure adjusting rod 912. A spring 916 is connected between the installation block 914 and the pressure adjusting rod 912. The damper 915 and the spring 916 can automatically adjust the test pressure according to the characteristics of different PCBA boards, protecting the PCBA board from damage and ensuring the comprehensiveness of the test.

[0031] Further, a pressure sensor 917 is arranged at one end of the pressure adjusting rod 912. The pressure sensor 917 at one end of the pressure adjusting rod 912 can monitor the pressure change during the test in real time, providing accurate data support for the operator and facilitating the timely discovery of problems and adjustments.

[0032] Working principle: First, the operator places the PCBA board to be tested on the top of the material placing seat 5. Then, the motor 615 is started, and the motor 615 drives the bidirectional lead screw 612 to rotate. Due to the thread design of the bidirectional lead screw 612, the two groups of clamping plates 6 can move towards or away from each other along the outer surface of the lead screw. When the motor 615 rotates forward, the two groups of clamping plates 6 will move towards each other, gradually approaching and clamping both sides of the PCBA board to ensure that the PCBA board will not shake or shift during the test. Subsequently, the cylinder 3 is started, and the piston rod of the cylinder 3 begins to descend, driving the sliding plate 4 connected thereto to move downward. One side of the sliding plate 4 is fixed with a detection plate 9, and a plurality of metal probes 911 are installed at the bottom of the detection plate 9. As the sliding plate 4 descends, the detection plate 9 gradually approaches and contacts the top of the PCBA board.

[0033] During the process of the detection board 9 approaching the PCBA board, the pressure adjustment lever 912 will first come into contact with the PCBA board. Through the action of the damper 915 and the spring 916, the pressure adjustment lever 912 can produce a certain buffering effect when contacting the PCBA board, avoiding impact or damage to the PCBA board. At the same time, the pressure sensor 917 will monitor and measure the pressure borne by the pressure adjustment lever 912 in real time to ensure that the pressure during the test is appropriate and will not cause excessive pressure on the PCBA board. When the metal probe 911 contacts the test point on the PCBA board, the electrical performance test starts. The test signal is transmitted to the PCBA board through the metal probe 911, and the response signal of the PCBA board is received, so as to judge whether the components on the PCBA board are correctly connected and working properly. After the test is completed, the motor 615 rotates in reverse, driving the bidirectional lead screw 612 to move the two sets of clamping plates 6 away from each other, releasing the clamping of the PCBA board. The cylinder 3 rises, driving the sliding plate 4 and the detection board 9 back to the initial position, completing a test process.

[0034] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A test device for circuit board production, comprising a base (1), characterized in that: A top plate (111) is fixedly mounted on the top of the base (1), and a bracket (2) is fixedly mounted on the top of the top plate (111), a cylinder (3) is fixedly mounted on the top of the bracket (2), and one end of the cylinder (3) is connected to a sliding plate (4), a detection plate (9) is fixedly mounted on the bottom end of the sliding plate (4), a plurality of groups of metal probes (911) are fixedly mounted on the outer surface of the bottom end of the detection plate (9), and a pressure adjustment rod (912) is provided at the middle end of the bottom side of the detection plate (9), and the top plate ( 111), a material placing seat (5) is fixedly installed on the top of the material placing seat (5), and a limiting slide groove (611) is provided on the outer surface of the top of the material placing seat (5), two groups of fixed seats (614) are fixedly installed on the inner wall of the limiting slide groove (611), and circular through grooves are provided on the outer surfaces of the two groups of fixed seats (614), and bidirectional screw rods (612) are movably installed in the circular through grooves, one end of the bidirectional screw rod (612) is connected to a motor (615), and a clamping plate (6) is movably installed on the outer surface of the bidirectional screw rod (612).

2. A circuit board production testing device according to claim 1, characterized in that: The top ends of the two sets of fixing seats (614) are both fixedly mounted with protection plates (613).

3. A circuit board production testing device according to claim 1, characterized in that: The outer surface of the clamping plate (6) is wrapped with rubber.

4. A circuit board production testing device according to claim 1, characterized in that: The fixing seat (614) is fixedly connected to the motor (615).

5. A circuit board production testing device according to claim 1, characterized in that: Two groups of fixing blocks (7) are fixedly mounted on both sides of the inner wall of the bracket (2), and one side of the two groups of fixing blocks (7) is connected to a limiting rod (8), and a sliding plate (4) is movably mounted on the outer surface of the limiting rod (8).

6. A circuit board production testing device according to claim 1, characterized in that: A mounting groove (913) is provided at the middle end of the bottom side of the detection plate (9), and a mounting block (914) is installed on the inner wall of the mounting groove (913), one end of the mounting block (914) is connected to a damper (915), and one end of the damper (915) is connected to a pressure regulating rod (912), and a spring (916) is connected between the mounting block (914) and the pressure regulating rod (912).

7. A circuit board production testing device according to claim 6, characterized in that: A pressure sensor (917) is provided at one end of the pressure regulating rod (912).

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