Test board card device facilitating quick replacement

Abstract

The utility model relates to the production and manufacturing technical field of thermal printing head, specifically speaking, it is a kind of convenient quick-change test board card device of structure reasonable, easy operation, can be aimed at different categories product demand to be measured, quick replacement, including test board card, board card support component, connecting seat, wherein, the test board card includes plate main part and the probe fixed in plate main part lower end, the plate main part upper end of test board card is fixedly connected with board card support component, the top surface of board card support component and the bottom surface of connecting seat are equipped with the magnetic attraction component of cooperation, the side surface of board card support component is equipped with positioning rib, compared with prior art, by setting positioning rib in the side surface of support plate, the quick disengagement of connecting seat and test board card can be completed, to improve the replacement efficiency of test board card in automatic test process, with the remarkable advantages of reasonable structure, low cost, easy operation etc.

Description

Technical fields:

[0001] This utility model relates to the field of thermal printhead manufacturing technology, specifically a test board device with a reasonable structure, simple operation, and quick replacement capability to meet the needs of different types of products under test. Background technology:

[0002] In the production of thermal printheads, circuit integrity is crucial. However, due to the very narrow circuit structure, open circuits and short circuits are prone to occur. Therefore, multiple circuit tests are required during production. Circuit testing is achieved by using test probes to connect the circuit under test to external testing equipment. To facilitate probe connection, the probes are mounted on a test board, with their rear ends connected to cables. Through the probes and cables, the electrical connection between the circuit under test and the external testing equipment is established.

[0003] However, due to the wide variety of products, the test boards required for circuit testing are also diverse. These test boards have drastically different numbers or specifications of probes. Currently, to adapt to the testing of different product types, frequent manual replacement of test boards is necessary. However, manual board replacement can lead to errors and incurs significant time costs. Furthermore, the likelihood of errors and time costs increase exponentially with repeated testing. Therefore, how to quickly and automatically replace test boards is a crucial research direction for improving the production efficiency of thermal printheads. Currently, there are no testing products specifically designed for thermal printheads on the market.

[0004] In other industries, similar testing products typically involve frequent manual replacement of different types of self-made fixtures, usually secured with screws. After the probe fixtures are replaced, they are often placed randomly or upside down with the probes facing upwards. This makes the probes easily damaged, and operators cannot quickly identify or locate the target test board. Neither of these methods solves the problems of quickly replacing test boards and storing them. Summary of the Invention:

[0005] This invention addresses the shortcomings and deficiencies of existing technologies by proposing a test board device that can solve the frequent circuit testing needs during the production of thermal printheads, effectively reduce the error rate and time cost caused by manual intervention, and significantly improve product testing efficiency.

[0006] This utility model achieves its purpose through the following measures:

[0007] A test board device for easy and quick replacement includes a test board, a board support component, and a connecting seat. The test board includes a plate-shaped body and probes fixed to the lower end of the plate-shaped body. The upper end of the plate-shaped body of the test board is fixedly connected to the board support component. The top surface of the board support component and the bottom surface of the connecting seat are provided with matching magnetic suction components. The side of the board support component is provided with positioning ribs.

[0008] The test board of this invention has a probe routing groove on the upper end of its plate-shaped main body for convenient wiring. The board support component consists of a support plate located at the top and a support block fixedly connected to the bottom surface of the support plate. The support block is fixedly connected to both sides of the probe routing groove to preserve as much space as possible in the probe routing groove while providing reliable support.

[0009] The plate support component of this utility model has a matching positioning post and a fitting hole between the support plate and the connecting seat, which facilitates quick alignment of the support plate and the connecting seat during connection. Furthermore, the bottom surface of the connecting seat is not less than the top surface area of ​​the support plate to ensure full contact and connection between the connecting seat and the plate support component.

[0010] The present invention provides two or more cooperating magnetic components between the plate support component and the connecting seat, and provides two or more cooperating positioning posts and fitting grooves to improve the reliability of their connection.

[0011] The positioning ribs of the plate support component of this utility model are provided on the side of the support plate. Furthermore, positioning ribs are provided on both sides of the support plate. Preferably, the positioning ribs have a longitudinal groove in the middle for fixing the test plate after it is pushed into the test plate tray, so as to prevent it from sliding out laterally.

[0012] The upper surface of the connector of this utility model is provided with a robotic arm connection part so as to connect the connector to the robotic arm and realize automatic board replacement.

[0013] This invention arranges test boards with probes of different specifications with the probes facing down and the board support components facing up. During placement, the test boards are hung on a support frame using the support plate at the top of the board support component and the positioning ribs on the side of the support plate. This support frame can be made of two parallel support plates, with the upper part of the support plates connected to the positioning ribs of the support plates. This arrangement allows the probes to suspend in the air, preventing damage, and allows probe model labels to be affixed to the surface of the support plate for quick identification of the corresponding test board. In use, the connecting seat is connected to a robotic arm. Driven by the robotic arm, the connecting seat moves to the upper surface of the corresponding test board, utilizing the matching positioning posts and fitting... The connection is aligned with the board support component. Then, the robotic arm presses down on the connection to bring it close to the support plate. The support plate and connection are magnetically attracted to each other, thus picking up the target test board. The robotic arm then connects the probes of the test board to the circuit to be tested, establishing an electrical connection between the circuit and the external testing equipment. After the testing personnel perform the relevant tests according to the testing regulations, the robotic arm moves the test board to the storage area. The robotic arm pushes the original test board into the empty slot, then lifts it up to disconnect the magnetic connection. It then moves to the top of the required test board, descends, and forms a magnetic connection. Finally, it is pulled out horizontally to complete the replacement of a test board.

[0014] Compared with the prior art, this utility model can quickly detach the connecting seat from the test board by setting positioning ribs on the side of the support plate, thereby improving the efficiency of test board replacement during automatic testing. It has significant advantages such as reasonable structure, low cost and simple operation. Attached image description:

[0015] Appendix Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Appendix Figure 2 This is a schematic diagram showing the connector and the plate support component detached in this utility model. (Attached) Figure 3 This is a diagram showing the usage state of this utility model.

[0017] Appendix Figure 4 This is the structure of the test board tray in this utility model.

[0018] Reference numerals: 1. Connector; 2. Test board; 3. Probe; 4. Probe wiring groove; 5. Positioning rib; 6. Robot arm connector; 7. Positioning post; 8. Magnet; 9. Support plate; 10. Support block; 11. Fitting hole; 12. Test board tray; 13. Groove; 14. Positioning protrusion. Detailed implementation method:

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] As attached Figure 1 As shown, this utility model proposes a test board device that is easy to replace quickly, including a test board 2, a board support component, and a connecting seat 1. The test board 2 includes a plate-shaped body and a probe 3 fixed to the lower end of the plate-shaped body. The upper end of the plate-shaped body of the test board 2 is fixedly connected to the board support component. The top surface of the board support component and the bottom surface of the connecting seat 1 are provided with matching magnetic suction components. The side of the board support component is provided with positioning ribs 5.

[0021] The test board 2 of this utility model has a probe routing groove 4 at the upper end of its plate-shaped main body for convenient routing. The board support component consists of a support plate 9 located at the upper part and a support block 10 fixedly connected to the bottom surface of the support plate 9. The support block 10 is fixedly connected to both sides of the probe routing groove 4 to preserve as much space as possible in the probe routing groove 4 while providing reliable support.

[0022] The plate support component of this utility model has a positioning post 7 and a fitting hole 11 between the support plate 9 and the connecting seat 1, which facilitates quick alignment of the support plate 9 and the connecting seat 1 during connection. Furthermore, the bottom area of ​​the connecting seat 1 is not less than the top area of ​​the support plate 9 to ensure that the connecting seat 1 and the plate support component are fully in contact and connected.

[0023] The present invention provides two or more magnetic attraction components between the plate support component and the connecting seat 1. The magnetic attraction components are magnets 8 and are provided with two or more positioning posts 7 and fitting holes 11 to improve the reliability of the connection between the two.

[0024] The positioning ribs 5 of the plate support component of this utility model are provided on the side of the support plate 9. Furthermore, positioning ribs 5 are provided on both sides of the support plate 9. Preferably, the positioning ribs 5 have a longitudinal groove in the middle for fixing the test plate after it is pushed into the test plate tray, so as to prevent it from sliding out laterally.

[0025] The upper surface of the connector 1 of this utility model is provided with a robotic arm connector 6 so as to connect the connector to the robotic arm and realize automatic board replacement.

[0026] Example:

[0027] This example provides a device for quickly replacing test boards, including a connector 1 and a test board 2;

[0028] The connecting base 1 is equipped with a robotic arm connecting part 6, a positioning post 7, and a magnet 8. The robotic arm connecting part 6 is used to connect with the robotic arm, and its specific form can be designed according to the type and model of the robotic arm. The positioning post 7 is used to limit the test board to a reasonable and correct position. There are two of them, located on the connecting base 1 at the upper left and lower right positions corresponding to the test board 2, respectively. They penetrate the entire connecting base 1 in the thickness direction, and the protruding part is used to combine with the fitting hole slot on the test board 2 to achieve the positioning function. The magnet 8 is used to attract the test board. There are two magnets 8 located at the center position of the upper end of the test board. Their function is to use magnetic force to attract the test board to the connecting base, which is more convenient for replacement than screw fixing. The connecting base 1 is connected to the test board 2 at the bottom via a magnet and to the robotic arm at the top via the robotic arm supporting structure. In the working state, the three are connected. In the non-working state, they are not connected to the test board.

[0029] The test board 2 includes probes 3, probe wiring slots 4, and a test board support structure (board support component). The probes 3 directly contact the circuit and form a loop to detect circuit continuity. They are made of steel with blunted tips to prevent damage to the product. Their number and arrangement can be modified according to the actual condition of the product being tested. The probe wiring slots 4 are located inside the probe board, where the probe ends can be stored. This hollow area also facilitates wiring. The main function of the board support component is to support the probe board when it is not in operation. Positioning ribs 5 extend from the side of the support plate 9, which connects the test board to the connector. The ends of the ribs are rounded. Figure 3 As shown, to prevent the test board from being bumped during the pushing and pulling process, the positioning rib 5 has a longitudinal groove in the middle of the rib, which can cooperate with the positioning protrusion 14 on the inner side of the groove 13 on the test board tray 12 during use. This is used to fix the test board after it is pushed into the test board tray 12 and prevent it from sliding out of the test board tray 12.

[0030] As attached Figure 4 In this example, the robot can be quickly moved to the test board tray 12, the original test board can be pushed into the empty slot, and then the robot can be lifted up to disconnect the magnetic connection. Then it can be moved to the top of the required test board, lowered and formed a magnetic connection, and then pulled out horizontally to complete the replacement of a test board.

[0031] In use, the connector 1 is first installed on the robotic arm, and the two are connected by the robotic arm's matching structure 6. The robotic arm moves to the top of the test board tray according to the system instructions, and slowly descends until the magnet 8 attracts the test board 2. At the same time, the positioning post 7 on the connector 1 is also inserted into the corresponding groove on the test board 2 to complete the positioning between the two. Then, the connector 1 and the test board 2 are pulled outward along the rib direction of the test board support structure, and then they move together to the top of the product to be tested and slowly descend until the probe 3 of the test board 2 contacts the product circuit with appropriate force. When the test is completed, the system receives the test result information, the robotic arm is lifted, and the single test is completed. If test board 2 needs to be replaced, under the control of the robotic arm, the connecting seat 1 and test board 2 are moved together to the initial position for picking up test board 2. Similarly, the test board is pushed into the test board tray along the rib direction of the test board support structure. Then, the robotic arm lifts the connecting seat 1 upward to disconnect the magnetic connection with the test board 2. The test board is then held in the tray by the ribs of its support structure. This completes one pick-up and put-back of test board 2. At this time, the robotic arm only needs to control the connecting seat 1 to move above the tray of the next required test board and repeat the above operation to complete the quick replacement of test board 2.

[0032] Compared with existing technologies, this example can achieve efficient detection during the production process of thermal printheads. It is highly adaptable and easy to use, and the test board can be quickly replaced, which can effectively reduce the error rate and time cost of manual replacement.

Claims

1. A test board device for easy and quick replacement, comprising a test board, a board support component, and a connector, wherein, The test board includes a plate-shaped body and a probe fixed to the lower end of the plate-shaped body. The upper end of the plate-shaped body of the test board is fixedly connected to a board support component. The top surface of the board support component and the bottom surface of the connecting seat are provided with matching magnetic suction components. The side of the board support component is provided with positioning ribs.

2. The test board device for easy and quick replacement according to claim 1, characterized in that, The test board has a probe routing groove on its upper end for easy routing. The board support component consists of a support plate at the top and a support block fixedly connected to the bottom surface of the support plate. The support block is fixedly connected to both sides of the probe routing groove.

3. The test board device for easy and quick replacement according to claim 2, characterized in that, The plate support component has a matching positioning post and fitting hole between the support plate and the connecting seat, and the bottom surface of the connecting seat is not less than the top surface area of ​​the support plate.

4. The test board device for easy and quick replacement according to claim 3, characterized in that, The plate support component and the connecting seat are provided with two or more cooperating magnetic components, and with two or more cooperating positioning posts and fitting grooves.

5. The test board device for easy and quick replacement according to claim 2, characterized in that, The positioning ribs of the plate support component are located on the side of the support plate.

6. The test board device for easy and quick replacement according to claim 5, characterized in that, The positioning ribs have longitudinal grooves in the middle to fix the test board after it is pushed into the test board tray and prevent it from sliding out laterally.

7. The test board device for easy and quick replacement according to claim 1, characterized in that, The upper surface of the connector is provided with a robotic arm connection part, so as to connect the connector to the robotic arm and realize automatic board replacement.

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