PCBA test fixture needle bed rapid replacement device
By designing disassembly and assembly components, the rapid disassembly and installation of the PCBA test fixture needle bed is achieved, which solves the cumbersome and time-consuming problems in the existing technology, improves replacement efficiency and reduces operating costs.
Patent Information
- Application Number
- CN202420589454.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-26
AI Technical Summary
When replacing existing PCBA test fixtures, the connectors need to be frequently plugged and unplugged, resulting in poor contact and affecting the test results. The replacement process is cumbersome and time-consuming, which increases operating costs and requirements for the professional quality of the operators.
A quick replacement device for needle bed of PCBA test fixture is designed. The rapid removal of needle bed is achieved by setting up disassembly and assembly components, including pressure plate, press rod, extrusion column, moving block, connecting column, limit block and spring telescopic rod. and installation, simplifying the replacement process.
It improves replacement efficiency, reduces the requirements for the professional quality of the operators, reduces labor costs, simplifies the replacement process, and shortens the replacement time to two minutes.
Smart Images
Figure CN222259408U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of needle bed replacement, in particular to a PCBA test fixture needle bed quick replacement device. Background Art
[0002] PCBA (PCBA) test is an essential functional test in the test system of electronic and electrical products. In the mass production process of PCBA, due to various factors of equipment and operators, it is impossible to ensure that all the produced PCBAs are intact products. This requires the addition of various equipment and measuring tools at the end of production to test the produced PCBAs to ensure that the specifications and parameters of the factory-made and designed PCBAs are completely consistent. PCBA testing mainly uses test fixtures to simulate real-life usage, that is, to connect all the external devices of the PCBA, make it work in various design states, and obtain the parameters of each state to verify the function of the PCBA. PCBA testing mainly includes power supply part testing, output port (interface) testing, I / O read and write function testing of integrated circuit modules IC, and other special function testing.
[0003] At present, the existing PCBA test fixture is connected to the test equipment through a cable connector. When using this connection method, when the fixture needs to be replaced, the connector needs to be frequently plugged and unplugged, which will cause poor contact at the interface and affect the test effect. When replacing the PCBA test fixture, the replacement is troublesome and time-consuming, which requires a high level of professional quality of the operating personnel and increases the operating cost.
[0004] The existing patent (Announcement No.: CN 205246706 U) discloses a PCBA test fixture needle bed quick replacement device, including a base. When replacing the PCBA test fixture, the replacement time is shortened to within two minutes, which improves efficiency. At the same time, the replacement is simple, which reduces the requirements for the professional quality of the operators and reduces the labor cost.
[0005] However, the above technical solution still has certain defects. When replacing, the unused needle bed must be pulled out from the pressure groove, and then the needle bed can be replaced with a suitable one. At the same time, the placement frame also needs to be replaced. For this reason, a PCBA test fixture needle bed quick replacement device is proposed. Utility Model Content
[0006] Based on this, the purpose of the utility model is to provide a PCBA test fixture needle bed quick replacement device to solve the technical problems raised in the above background.
[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a PCBA test fixture needle bed quick replacement device, comprising a base, a mounting plate is arranged inside the base, a disassembly and assembly component is arranged on the inner wall of the base, the disassembly and assembly component comprises a pressure plate, the lower part of the pressure plate extends to the inside of the base through a pressure rod and is connected to a moving frame, an extrusion column is arranged inside the moving frame, a moving block is arranged on the outer wall of the extrusion column, a moving plate is arranged on one side of the moving block, a connecting column is arranged on one side of the moving plate, a mounting frame is arranged on one side of the connecting column, a limit block is arranged inside the mounting frame, and a spring telescopic rod is arranged on one side of the limit block.
[0008] As a preferred technical solution for a PCBA test fixture needle bed quick replacement device of the utility model, the extrusion column is fixedly installed on the inner wall of the moving frame, and the extrusion column is slidably installed inside the moving block, and a travel groove matching the extrusion column is opened inside the moving block.
[0009] As a preferred technical solution for a PCBA test fixture needle bed quick replacement device of the utility model, one side of the moving block is fixedly connected to the moving plate, and the moving plate is slidably mounted on the outer wall of the guide column. A spring is arranged between one side of the moving plate and the inner wall of the base, and the spring is sleeved on the outer wall of the guide column, and both ends of the guide column are fixedly mounted on the inner wall of the base.
[0010] As a preferred technical solution for a PCBA test fixture needle bed quick replacement device of the utility model, the connecting column is fixedly connected to the movable plate, one end of the connecting column extends into the interior of the installation frame, and the installation frame is fixedly installed on the inner wall of the base.
[0011] As a preferred technical solution for a PCBA test fixture needle bed quick replacement device of the utility model, one side of the limit block is slidably connected to the connecting column, and a spring is arranged between one end of the limit block and the inner wall of the mounting frame, and the spring is sleeved on the outer wall of the connecting column, and the other end of the limit block extends to the outer wall of the base.
[0012] As an optimal technical solution for a PCBA test fixture needle bed quick replacement device of the utility model, a needle bed is arranged inside the mounting plate, multiple groups of needles are fixed inside the needle bed, a placement frame is arranged above the needle bed, and a telescopic column is arranged below the placement frame.
[0013] As a preferred technical solution for a quick replacement device for a needle bed of a PCBA test fixture of the utility model, the needle bed is fixedly connected to a mounting plate, and a side wall of the mounting plate is provided with a limit groove matching a limit block, the top of the telescopic column is fixedly connected to a placement frame, the telescopic column is slidably installed inside the mounting plate, and a spring is arranged between the inner wall of the mounting plate and the telescopic column.
[0014] In summary, the utility model mainly has the following beneficial effects:
[0015] The utility model is provided with a disassembly and assembly component, the pressure plate is pushed downward, the pressure plate drives the pressure rod to move downward, the limit block retracts inwardly, disengages from the limit groove provided on the side wall of the installation plate, and then the spring telescopic rod pushes the installation plate upward to complete the disassembly, conversely, the installation plate is downward, the installation plate is limited by the limit block to complete the installation, and the efficiency of replacement is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is the front view of the utility model;
[0017] Figure 2 This is a front split sectional view of the utility model;
[0018] Figure 3 This is a front cross-sectional view of the base of the utility model;
[0019] Figure 4 It is a front cross-sectional view of the mounting plate of the utility model.
[0020] In the figure: 1, base; 2, mounting plate; 210, needle bed; 220, needle; 230, placement frame; 240, telescopic column; 250, limiting groove; 310, pressure plate; 320, pressure rod; 330, moving frame; 340, moving block; 350, extrusion column; 360, moving plate; 370, guide column; 380, mounting frame; 390, connecting column; 3910, limiting block; 3920, spring telescopic rod. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used to explain the utility model, and cannot be understood as limiting the utility model.
[0022] The following describes an embodiment of the utility model based on its overall structure.
[0023] A PCBA test fixture needle bed quick replacement device, such as Figure 1-4As shown, it includes a base 1, a mounting plate 2 is arranged inside the base 1, a disassembly assembly is arranged on the inner wall of the base 1, and the disassembly assembly includes a pressing plate 310, and the lower part of the pressing plate 310 extends to the inside of the base 1 through a pressing rod 320 to be connected to a moving frame 330, an extrusion column 350 is arranged inside the moving frame 330, and a moving block 340 is arranged on the outer wall of the extrusion column 350, a moving plate 360 is arranged on one side of the moving block 340, a connecting column 390 is arranged on one side of the moving plate 360, and a mounting frame 380 is arranged on one side of the connecting column 390, a limiting block 3910 is arranged inside the mounting frame 380, and a spring telescopic rod 3920 is arranged on one side of the limiting block 3910, the extrusion column 350 is fixedly installed on the inner wall of the moving frame 330, the extrusion column 350 is slidably installed inside the moving block 340, and the moving block 3 A travel groove matching the extrusion column 350 is opened inside 40, one side of the moving block 340 is fixedly connected to the moving plate 360, and the moving plate 360 is slidably installed on the outer wall of the guide column 370, a spring is arranged between one side of the moving plate 360 and the inner wall of the base 1, and the spring is sleeved on the outer wall of the guide column 370, and both ends of the guide column 370 are fixedly installed on the inner wall of the base 1, the connecting column 390 is fixedly connected to the moving plate 360, one end of the connecting column 390 extends to the inside of the installation frame 380, and the installation frame 380 is fixedly installed on the inner wall of the base 1, one side of the limit block 3910 is slidably connected to the connecting column 390, and a spring is arranged between one end of the limit block 3910 and the inner wall of the installation frame 380, and the spring is sleeved on the outer wall of the connecting column 390, and the other end of the limit block 3910 extends to the outer wall of the base 1.
[0024] Push the pressure plate 310 downward, and the pressure rod 320 is driven to move downward through the pressure plate 310. At the same time, the pressure rod 320 drives the moving frame 330 downward, and the extrusion column 350 is driven downward through the moving frame 330 to squeeze the moving block 340 to move to one side, and at the same time drive the moving plate 360 to move, and the connecting column 390 is driven to move to one side through the moving plate 360. The connecting column 390 drives the limit block 3910 to retract, so that the limit block 3910 is disengaged from the limit groove 250, and the mounting plate 2 and the needle bed 210 can be disassembled. Conversely, the mounting plate 2 is moved downward to squeeze the limit block 3910. When the limit block 3910 retracts, the mounting plate 2 moves to the appropriate position, and the limit block 3910 enters the inside of the limit groove 250 through the spring reset to complete the installation.
[0025] Please refer to Figure 1 , Figure 3 and Figure 4A needle bed 210 is arranged inside the mounting plate 2, and multiple groups of needles 220 are fixed inside the needle bed 210. A placement frame 230 is arranged above the needle bed 210, and a telescopic column 240 is arranged below the placement frame 230. The needle bed 210 is fixedly connected to the mounting plate 2, and a side wall of the mounting plate 2 is provided with a limiting groove 250 matching the limiting block 3910. The top of the telescopic column 240 is fixedly connected to the placement frame 230, and the telescopic column 240 is slidably installed inside the mounting plate 2, and a spring is arranged between the inner wall of the mounting plate 2 and the telescopic column 240.
[0026] Place the PCBA board inside the display plate, and move the PCBA board downward manually or mechanically. When the display plate moves downward, the telescopic column 240 is driven to squeeze the spring to fit with the needle 220 for testing. After the test is completed, the display plate moves upward through the spring and the telescopic column 240.
[0027] When in use, push the pressing plate 310 downward, and the pressing rod 320 is driven to move downward through the pressing plate 310. At the same time, the pressing rod 320 drives the moving frame 330 downward, and drives the squeezing column 350 downward through the moving frame 330 to squeeze the moving block 340 to move to one side, and drives the moving plate 360 to move at the same time. The connecting column 390 is driven to move to one side through the moving plate 360, and the connecting column 390 drives the limit block 3910 to retract, so that the limit block 3910 is separated from the limit groove 250, and the mounting plate 2 and the needle bed 210 can be disassembled. Conversely, move the mounting plate 2 downward to squeeze the limit block 3910. Block 3910, when the limit block 3910 retracts, the mounting plate 2 moves to a suitable position, and the limit block 3910 is reset into the limit groove 250 by the spring, completing the installation, placing the PCBA board inside the placement plate, and moving the PCBA board downward manually or mechanically. When the placement plate moves downward, the telescopic column 240 is driven to squeeze the spring and fit with the needle 220 for testing. After the test is completed, the placement plate moves upward through the spring and the telescopic column 240. The parts not involved in the device are the same as the prior art or can be implemented by the prior art.
[0028] Although an embodiment of the utility model has been shown and described, this specific embodiment is merely an explanation of the utility model and is not a limitation of the utility model. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the utility model. However, as long as they are within the scope of the claims of the utility model, they are protected by patent law.
Claims
1. A PCBA test fixture needle bed quick replacement device, comprising a base (1), characterized in that: A mounting plate (2) is provided inside the base (1), and a disassembly assembly component is provided on the inner wall of the base (1); The disassembly and assembly component comprises a pressing plate (310), the lower part of the pressing plate (310) extends to the inside of the base (1) through a pressing rod (320) and is connected to a moving frame (330), an extrusion column (350) is arranged inside the moving frame (330), a moving block (340) is arranged on the outer wall of the extrusion column (350), a moving plate (360) is arranged on one side of the moving block (340), a connecting column (390) is arranged on one side of the moving plate (360), an installation frame (380) is arranged on one side of the connecting column (390), a limiting block (3910) is arranged inside the installation frame (380), and a spring telescopic rod (3920) is arranged on one side of the limiting block (3910).
2. A PCBA test fixture needle bed quick replacement device according to claim 1, characterized in that: The squeezing column (350) is fixedly mounted on the inner wall of the moving frame (330), and the squeezing column (350) is slidably mounted inside the moving block (340). A travel groove matching the squeezing column (350) is provided inside the moving block (340).
3. A PCBA test fixture needle bed quick replacement device according to claim 1, characterized in that: One side of the moving block (340) is fixedly connected to the moving plate (360), and the moving plate (360) is slidably mounted on the outer wall of the guide column (370). A spring is provided between one side of the moving plate (360) and the inner wall of the base (1), and the spring is sleeved on the outer wall of the guide column (370). Both ends of the guide column (370) are fixedly mounted on the inner wall of the base (1).
4. A PCBA test fixture needle bed quick replacement device according to claim 1, characterized in that: The connecting column (390) is fixedly connected to the movable plate (360), one end of the connecting column (390) extends into the interior of the installation frame (380), and the installation frame (380) is fixedly installed on the inner wall of the base (1).
5. The PCBA test fixture needle bed quick replacement device according to claim 1, characterized in that: One side of the limit block (3910) is slidably connected to the connecting column (390), and a spring is provided between one end of the limit block (3910) and the inner wall of the mounting frame (380), and the spring is sleeved on the outer wall of the connecting column (390), and the other end of the limit block (3910) extends to the outer wall of the base (1).
6. The PCBA test fixture needle bed quick replacement device according to claim 1, characterized in that: A needle bed (210) is arranged inside the mounting plate (2), and a plurality of groups of needles (220) are fixed inside the needle bed (210). A placement frame (230) is arranged above the needle bed (210), and a telescopic column (240) is arranged below the placement frame (230).
7. A PCBA test fixture needle bed quick replacement device according to claim 6, characterized in that: The needle bed (210) is fixedly connected to the mounting plate (2), and a limit groove (250) matching the limit block (3910) is provided on the side wall of the mounting plate (2). The top of the telescopic column (240) is fixedly connected to the placement frame (230). The telescopic column (240) is slidably installed inside the mounting plate (2), and a spring is provided between the inner wall of the mounting plate (2) and the telescopic column (240).