A PCBA board testing platform
By using an adjustable belt conveyor and a three-axis guide rail system, the problem of insufficient adaptability and operational flexibility of traditional PCBA board testing platforms has been solved, achieving multi-size adaptation and efficient testing.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUHAI GLEX AUTOMATION EQUIP CO LTD
- Filing Date
- 2025-07-30
- Publication Date
- 2026-06-30
AI Technical Summary
Traditional PCBA board testing platforms cannot be adapted to PCBA boards of different sizes, resulting in poor production compatibility, increased costs, and limited movement range of the guide rail system, leading to insufficient operational flexibility.
It adopts an adjustable belt conveyor and a three-axis guide rail system, combined with a gripper and an industrial camera, to achieve multi-size adaptation and precise docking, and achieves three-axis adjustment through a slide and a linear motor.
This improved the applicability and operational flexibility of the testing platform, reduced production costs, and enabled more efficient and flexible PCBA board testing.
Smart Images
Figure CN224436526U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automated testing equipment technology, specifically to a PCBA board testing platform. Background Technology
[0002] PCBA, or Printed Circuit Board Assembly, refers to the assembly of electronic components onto a bare printed circuit board (PCB) using surface mount technology (SMT) or dual in-line package (DIP) processes, forming a complete circuit assembly. It mainly consists of the bare PCB, electronic components (such as resistors, capacitors, and integrated circuits), and solder. The PCB serves as the basic carrier, providing electrical connection paths and mechanical support, while the electronic components are the core parts that realize the circuit functions.
[0003] As a core component of electronic devices, the functional testing stage of PCBA boards during the production process is crucial, directly affecting product quality and production efficiency. Traditional PCBA board testing platforms generally suffer from the following problems: First, the fixed spacing of the conveyor belts cannot accommodate PCBA boards of different sizes (such as touch panel PCBAs with varied shapes), requiring frequent equipment changes or manual adjustments, resulting in poor production compatibility and increased costs; second, the guide rail system is mostly a single-axis or dual-axis structure, with limited movement range of the gripping device, making it difficult to accurately align with test fixtures and lacking operational flexibility.
[0004] The above problems have constrained the demand for intelligent upgrading of production lines, thus creating an urgent need for a test platform solution that is structurally optimized, highly adaptable, and flexible in operation. Utility Model Content
[0005] To address at least one of the aforementioned problems, this utility model proposes a new structural solution. The PCBA board testing platform adopts the following technical solution:
[0006] A PCBA board testing platform includes a frame, on which a conveyor belt assembly, test fixtures, a board gripping device, and a guide rail assembly are mounted.
[0007] The belt conveyor assembly and test fixture are mounted on the work panel of the frame, and the guide rail assembly is mounted on the test fixture. The guide rail assembly includes an X-axis guide rail, a Y-axis guide rail and a Z-axis guide rail. The gripper device is mounted on the Z-axis guide rail, and the gripper device is connected to the Z-axis guide rail and moves along the Z-axis. The gripper device, the X-axis guide rail, the Y-axis guide rail and the Z-axis guide rail are connected by a slide block.
[0008] The gripping device includes a vertical plate frame, a motor, a suction cup fixing plate, and a suction cup. The motor is mounted on the vertical plate frame so that it moves with the vertical plate frame. The suction cup is mounted on the suction cup fixing plate. The motor is connected to the suction cup fixing plate to drive the suction cup fixing plate to rotate, thereby adjusting the position of the suction cup.
[0009] The belt conveyor assembly includes a profile base, a reference belt conveyor, and a movable belt conveyor. The reference belt conveyor is fixed on one side of the profile base. The profile base is provided with a guide shaft, which is perpendicular to the reference belt conveyor. The movable belt conveyor is connected to the guide shaft and can move along the guide shaft to adjust the spacing between the reference belt conveyor and the movable belt conveyor.
[0010] Preferably, the slide of the Y-axis guide rail is connected to the X-axis guide rail so that the Y-axis guide rail can move along the X-axis; the slide of the Z-axis guide rail is connected to the Y-axis guide rail so that the Z-axis guide rail can move along the Y-axis guide rail; the slide of the gripping plate device is provided on the vertical plate frame, and the slide of the vertical plate frame is connected to the Z-axis guide rail so that the gripping plate device can move along the Z-axis guide rail.
[0011] Preferably, the suction cup fixing plate is long and narrow, and the suction cups are installed at both ends of the suction cup fixing plate.
[0012] Preferably, a gantry is mounted on the work panel, and a guide rail assembly is mounted on the gantry to increase the height of the guide rail assembly, so that the guide rail assembly is located above the belt conveyor and the test fixture.
[0013] Preferably, the conveyor belt assembly is equipped with a blocking device, which includes a lifting cylinder and a stop block. The lifting cylinder is connected to drive the stop block to connect with the PCBA board on the movable conveyor belt to restrict the movement of the PCBA board.
[0014] Preferably, the movable conveyor belt is provided with a track support plate, the track support plate is provided with a ball linear bearing, and the guide shaft passes through the ball linear bearing.
[0015] Preferably, the test fixture includes a carrier platform, a pressure plate, and a cylinder. The cylinder is vertically arranged, and the pressure plate is connected to the movable end of the cylinder so that it can be driven by the cylinder to move toward or away from the carrier platform.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] To enable the testing platform to accommodate PCBA boards of various sizes, this solution employs a standard conveyor belt and a movable conveyor belt. The movable conveyor belt is threaded through a guide shaft and can slide along the shaft, thereby adjusting the spacing between the standard and movable conveyor belts. This allows for compatibility with PCBA boards of various sizes, broadening the platform's applicability and reducing production costs. The guide rail assembly adopts a three-axis structure, enabling the gripping device to move and adjust its position in three directions. Combined with an industrial camera for gripping, this provides greater operational flexibility.
[0018] In summary, this utility model achieves high efficiency, flexibility, and low cost in PCBA board testing through the coordinated design of adjustable belt conveyor, three-axis guide rail system, and automated components, and has significant technical advantages.
[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description
[0020] Figure 1 A schematic diagram of the PCBA board testing platform in a preferred embodiment of this utility model;
[0021] Figure 2 A schematic diagram of the internal structure of the frame in a preferred embodiment of this utility model;
[0022] Figure 3 This is an exploded view of the internal structure of the frame in a preferred embodiment of the present invention.
[0023] Figure 4 This is a schematic diagram of the belt conveyor assembly structure in a preferred embodiment of the present invention.
[0024] Explanation of reference numerals: 1. Rack; 11. Gantry; 12. PCBA board;
[0025] 2. Belt conveyor assembly; 21. Profile base; 22. Base belt conveyor; 23. Belt conveyor; 231. Connecting platform profile; 232. Belt; 24. Guide shaft; 25. Blocking device; 26. Lifting cylinder; 27. Stop block; 28. Track support plate; 29. Ball linear bearing;
[0026] 3. Test fixture;
[0027] 4. Gripping plate device; 41. Vertical plate frame; 42. Linear motor; 43. Suction cup fixing plate; 44. Suction cup; 45. Industrial camera; 46. Suction nozzle;
[0028] 5. Guide rail assembly; 51. X-axis guide rail; 52. Y-axis guide rail; 53. Z-axis guide rail;
[0029] 6. Carrier platform; 7. Pressure plate. Detailed Implementation
[0030] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0033] The preferred embodiment provided by this utility model is as follows: Figures 1-4 As shown, a PCBA board testing platform includes a frame 1, on which a conveyor belt assembly 2, a test fixture 3, a plate gripping device 4, and a guide rail assembly 5 are mounted. The test fixture 3 includes a tray platform 6, a pressure plate 7, and a cylinder. The cylinder is vertically arranged, and the pressure plate 7 is connected to the movable end of the cylinder so that it can be driven by the cylinder to move towards or away from the tray platform 6. The test fixture mainly tests the function of the PCBA board. It works by driving the pressure plate 7 down with the cylinder, so that the test points of the PCBA come into contact with the test probes fixed on the test fixture. Then, the probe heads provide test signals to the test points of the PCBA, thereby detecting the function of the PCBA. The test fixture 3 adopts an existing functional module detection structure, and how to detect the function of the PCBA is not the focus of this embodiment. Therefore, the specific composition structure of the test fixture is not described in detail in this embodiment. You can refer to the specific structural scheme of existing test fixtures.
[0034] The belt conveyor assembly 2 and the test fixture 3 are mounted on the work panel of the frame 1, and the guide rail assembly 5 is located on the test fixture 3. The guide rail assembly 5 includes an X-axis guide rail 51, a Y-axis guide rail 52 and a Z-axis guide rail 53. The gripper device 4 is mounted on the Z-axis guide rail 53 and is connected to the Z-axis guide rail 53 and moves along the Z-axis. The gripper device 4, the X-axis guide rail 51, the Y-axis guide rail 52 and the Z-axis guide rail 53 are connected by a slide block. A gantry frame 11 is mounted on the work panel, and the guide rail assembly 5 is mounted on the gantry frame 11 to increase the height of the guide rail assembly 5, so that the guide rail assembly 5 is located above the belt conveyor assembly 2 and the test fixture 3, providing space for the gripper device 4 to move.
[0035] The gripping device 4 includes a vertical frame 41, a motor 42, a suction cup fixing plate 43, and a suction cup 44. The motor 42 is mounted on the vertical frame 41 to move with it. The suction cup 44 is mounted on the suction cup fixing plate 43. The motor 42 is connected to the suction cup fixing plate 43 to drive the suction cup fixing plate 43 to rotate, thereby adjusting the position of the suction cup 44. An industrial camera 45 is mounted on the vertical frame 41 to identify the position and size of the PCBA board 12, thereby adjusting the position of the suction cup 44. The industrial camera 45 and its identification technology are existing products and technologies, and will not be described in detail here. The suction cup fixing plate 43 is elongated, and the suction cup 44 is mounted on both ends of the suction cup fixing plate 43 to adapt to the position of the double belt conveyor group 2. The suction cup 44 is equipped with several suction nozzles 46, which are used by the suction cup 44 to adsorb the PCBA board 12.
[0036] The slide of the Y-axis guide rail 52 is connected to the X-axis guide rail 51, allowing the Y-axis guide rail 52 to move along the X-axis; the slide of the Z-axis guide rail 53 is connected to the Y-axis guide rail 52, allowing the Z-axis guide rail 53 to move along the Y-axis guide rail 52; the slide of the gripping plate device 4 is located on the vertical plate frame 41, and the slide of the vertical plate frame 41 is connected to the Z-axis guide rail 53, allowing the gripping plate device 4 to move along the Z-axis guide rail 53. Each axis guide rail is equipped with a linear motor 42, and the linear motor 42 of each axis guide rail is connected to the slide of the corresponding axis guide rail. The movement of each slide rail is coordinated to achieve triaxial adjustment and displacement.
[0037] The belt conveyor assembly 2 includes a profile base 21, a reference belt conveyor 22, and a movable belt conveyor 23. The profile base 21 serves as a support for component installation. The reference belt conveyor 22 is fixedly installed on one side of the profile base 21. The reference belt conveyor 22 and the movable belt conveyor 23 adopt the same structure. Taking the movable belt conveyor as an example: the movable belt conveyor 23 includes a connecting platform profile 231, a belt 232, and a motor. The motor is installed inside the connecting platform profile 231. The rotor of the motor passes through the side wall of the connecting platform profile and connects to the belt 232. The belt is located inside the connecting platform profile 231 and is lower than the upper end surface of the connecting platform profile 231. Thus, the side wall of the connecting platform profile 231 is used to restrict the lateral movement of the PCBA board. The PCBA board is placed on the belt and driven by the belt.
[0038] The reference belt 22 is fixed on one side of the profile base 21. The profile base 21 is provided with a guide shaft 24, which is perpendicular to the reference belt 22. The movable belt 23 is connected to the guide shaft 24 and can move along the guide shaft 24 to adjust the distance between the reference belt 22 and the movable belt 23 to adapt to PCBA boards 12 of different sizes. The belt assembly 2 is provided with a position sensor to detect the position status of the PCBA board 12.
[0039] The conveyor belt assembly 2 is equipped with a blocking device 25, which includes a lifting cylinder 26 and a stop block 27. The lifting cylinder 26 drives the stop block 27 to connect with the PCBA board 12 on the movable conveyor belt 23 to restrict the movement of the PCBA board 12. The lifting cylinder 26 is a conventional cylinder, and the stop block 27 is installed on the piston rod of the lifting cylinder 26. The lifting cylinder 26 is vertically arranged to drive the stop block 27 to move up and down. The lifting cylinder 26 is installed on the profile base 21. The end of the stop block 27 that connects to the PCBA board 12 is L-shaped for easy connection. The shape of the stop block 27 is not specifically limited; it is only used as an example in this embodiment to illustrate its blocking effect.
[0040] The movable conveyor belt 23 is equipped with a track support plate 28, and the track support plate 28 is equipped with a ball linear bearing 29. The guide shaft 24 passes through the ball linear bearing 29. The track support plate 28 supports the movable conveyor belt 23, and the ball linear bearing 29 allows the track support plate 28 to move smoothly. The track support plate 28 is connected to a linear motor 42 or other device to drive its movement.
[0041] Operation Flow: The PCBA board testing platform has connecting lines on both sides to transport the PCBA board 12. These connecting lines can be conventional conveyor belts. After the PCBA board 12 enters the conveyor belt group 2, the reference conveyor belt 22 and the movable conveyor belt 23 operate synchronously to transport the PCBA board 12. Once the position sensor detects the PCBA board 12, the blocking device 25 is activated to stop its movement. After the industrial camera 45 detects the position of the PCBA board 12, it drives the suction cup 44 to move and adsorb the PCBA board 12. The slides on the X-axis guide rail 51, Y-axis guide rail 52, and Z-axis guide rail 53 move in coordination, moving the gripping device 4 to the testing fixture 3 and placing the PCBA board 12 onto the carrier platform 6. The pressure plate 7, driven by a cylinder, presses down to fix the PCBA board 12, facilitating subsequent testing operations. The frame 1 is equipped with an all-in-one computer, and the operation data of each component is connected to the all-in-one computer. After the product test is completed, the results are displayed on the computer. After the test is completed, the pressure plate 7 rises, and the gripping device 4 picks up the PCBA board 12 in the tray and transfers it back to the conveyor belt group 2. The PCBA board 12 is then removed from the conveyor belt group 2, ending the operation.
[0042] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0043] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions made using techniques known in the art based on this utility model all fall within the protection scope of this utility model and should be defined by the claims.
Claims
1. A PCBA board testing platform, comprising a frame, characterized in that: The frame is equipped with a belt conveyor assembly, test fixture, gripper device, and guide rail assembly. The belt conveyor assembly and test fixture are mounted on the work panel of the frame, and the guide rail assembly is mounted on the test fixture. The guide rail assembly includes an X-axis guide rail, a Y-axis guide rail and a Z-axis guide rail. The gripper device is mounted on the Z-axis guide rail, and the gripper device is connected to the Z-axis guide rail and moves along the Z-axis. The gripper device, the X-axis guide rail, the Y-axis guide rail and the Z-axis guide rail are connected by a slide block. The gripping device includes a vertical plate frame, a motor, a suction cup fixing plate, and a suction cup. The motor is mounted on the vertical plate frame so that it moves with the vertical plate frame. The suction cup is mounted on the suction cup fixing plate. The motor is connected to the suction cup fixing plate to drive the suction cup fixing plate to rotate, thereby adjusting the position of the suction cup. The belt conveyor assembly includes a profile base, a reference belt conveyor, and a movable belt conveyor. The reference belt conveyor is fixed on one side of the profile base. The profile base is provided with a guide shaft, which is perpendicular to the reference belt conveyor. The movable belt conveyor is connected to the guide shaft and can move along the guide shaft to adjust the spacing between the reference belt conveyor and the movable belt conveyor.
2. The PCBA board testing platform according to claim 1, characterized in that: The slide of the Y-axis guide rail is connected to the X-axis guide rail so that the Y-axis guide rail can move along the X-axis; the slide of the Z-axis guide rail is connected to the Y-axis guide rail so that the Z-axis guide rail can move along the Y-axis guide rail; the slide of the gripping plate device is located on the vertical plate frame, and the slide of the vertical plate frame is connected to the Z-axis guide rail so that the gripping plate device can move along the Z-axis guide rail.
3. The PCBA board testing platform according to claim 1, characterized in that: The suction cup fixing plate is long and narrow, with suction cups installed at both ends.
4. The PCBA board testing platform according to claim 1, characterized in that: A gantry is mounted on the work panel, and a guide rail assembly is mounted on the gantry to raise the height of the guide rail assembly, so that the guide rail assembly is located above the belt conveyor and the test fixture.
5. A PCBA board testing platform according to claim 1, characterized in that: The conveyor belt assembly is equipped with a blocking device, which includes a lifting cylinder and a stop block. The lifting cylinder is connected to drive the stop block to connect with the PCBA board on the movable conveyor belt to restrict the movement of the PCBA board.
6. A PCBA board testing platform according to claim 1, characterized in that: The movable conveyor belt is equipped with a track support plate, and the track support plate is equipped with a ball linear bearing. The guide shaft passes through the ball linear bearing.
7. A PCBA board testing platform according to claim 1, characterized in that: The test fixture includes a carrier platform, a pressure plate, and a cylinder. The cylinder is vertically positioned, and the pressure plate is connected to the movable end of the cylinder so that it can be driven by the cylinder to move toward or away from the carrier platform.