Mechanical property testing device for PCB board detection

Abstract

The utility model relates to a kind of mechanical property testing device for PCB detection, including workbench and test component being installed on workbench, the test component includes pressing plate, conveyer and rolling brush, the conveyer is installed on the mesa of workbench, the shape of the conveyer is belt conveyer and includes conveyor belt and two baffle, the conveyor belt is movably installed between two baffle, the pressing plate is movably arranged above conveyor belt, the rolling brush is movably arranged outside baffle, the bottom of the workbench is fixedly installed with pneumatic cylinder, the both ends of the rolling brush are both equipped with connecting rod by bearing, the output end of the pneumatic cylinder is fixedly connected with two connecting rods.Detection plate material is under the condition of continuous pressure, whether obvious breakage or crack will appear after a period of time, the sustainability of plate material is detected, and the limit of plate material service life is accurately estimated.

Description

Technical Field

[0001] This utility model relates to the field of PCB board testing technology, and in particular to a mechanical performance testing device for PCB board testing. Background Technology

[0002] After the PCB board is manufactured, it needs to undergo mechanical performance testing, which is generally carried out using specialized testing equipment for compression testing, etc. Compression testing tests the ultimate resistance of the PCB board. The testing equipment will continuously apply force until the board breaks and record the ultimate data of the board.

[0003] However, in actual use, PCB boards rarely encounter extreme conditions. As the usage time increases, the mechanical properties of the boards are continuously depleted. Therefore, it is necessary to design a testing device to detect the sustainability of the mechanical properties of PCB boards. Utility Model Content

[0004] The purpose of this application is to provide a mechanical performance testing device for PCB board inspection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this application provides the following technical solution:

[0006] A mechanical performance testing device for PCB board inspection includes a workbench and a testing assembly mounted on the workbench. The testing assembly includes a pressure plate, a conveyor, and a roller brush. The conveyor is mounted on the workbench surface and is a belt conveyor comprising a conveyor belt and two baffles. The conveyor belt is movably mounted between the two baffles. The pressure plate is movably positioned above the conveyor belt. The roller brush is movably positioned outside the baffles. A cylinder is fixedly mounted on the bottom of the workbench. Connecting rods are mounted at both ends of the roller brush via bearings. The output end of the cylinder is fixedly connected to the two connecting rods. A movable plate is movably mounted on the workbench surface. A hydraulic cylinder is fixedly mounted on the upper outer wall of the movable plate, with the output end of the hydraulic cylinder facing the conveyor belt and fixedly connected to the pressure plate.

[0007] Preferably, partition plates are fixedly installed at both ends of the pressure plate. The partition plates are right-angled trapezoids, with the acute-angled edges of the partition plates facing the conveyor belt. A screw is mounted on the worktable via bearings. The moving plate is threadedly connected to the screw. A motor is fixedly installed on the worktable, and the screw is driven by the motor. A sliding groove is formed on the worktable, and a guide block is fixedly installed at the bottom of the moving plate, with the guide block embedded inside the sliding groove.

[0008] Preferably, a limiting plate is fixedly installed between the two baffles, the limiting plate being abutting the upper edge of the conveyor belt, and a fixing plate is fixedly installed on one outer wall of the limiting plate, the fixing plate being positioned below the pressure plate. An adsorption plate is fixedly installed between the two baffles, the adsorption plate being abutting the upper edge of the conveyor belt, and the adsorption plate being installed at the end of the conveyor belt near the roller brush.

[0009] The beneficial effects of this utility model are: by setting up a testing component, it is possible to detect whether the board will show obvious damage or cracks after a period of time under continuous pressure, thereby testing the sustainability of the board and accurately estimating the limit of the board's service life. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the installation structure of the movable plate in this utility model;

[0012] Figure 3 This is a schematic diagram of the working state of the test component in this utility model.

[0013] In the diagram: 1. Workbench; 2. Conveyor belt; 3. Baffle; 4. Limiting plate; 5. Fixed plate; 6. Moving plate; 7. Hydraulic cylinder; 8. Pressure plate; 9. Connecting rod; 10. Roller brush; 11. Cylinder; 12. Adsorption plate; 13. Motor; 14. Screw. Detailed Implementation

[0014] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. The directional terms mentioned in this utility model, such as "up," "down," "front," "back," "left," "right," "top," and "bottom," are only for reference to the accompanying drawings. Therefore, the directional terms used are for the purpose of explaining and understanding this utility model, and not for limiting this utility model.

[0015] like Figure 1-3The mechanical performance testing device for PCB board inspection shown includes a workbench 1 and testing components mounted on the workbench 1. The testing components include a pressure plate 8, a conveyor, and a roller brush 10. The conveyor is mounted on the table surface of the workbench 1 and is a belt conveyor including a conveyor belt 2 and two baffles 3. The conveyor belt 2 is movably mounted between the two baffles 3. The pressure plate 8 is movably positioned above the conveyor belt 2. The roller brush 10 is movably positioned outside the baffles 3. A cylinder 11 is fixedly mounted on the bottom of the workbench 1. Both ends of the roller brush 10 are connected to connecting rods 9 via bearings. The output end of the cylinder 11 is fixedly connected to the two connecting rods 9. A movable plate 6 is movably mounted on the table surface of the workbench 1. A hydraulic cylinder 7 is fixedly mounted on the upper outer wall of the movable plate 6. The output end of the hydraulic cylinder 7 faces the conveyor belt 2 and is fixedly connected to the pressure plate 8.

[0016] Divider plates are fixedly installed at both ends of the pressure plate 8. The divider plates are right-angled trapezoids, with the acute-angled edges of the divider plates facing the conveyor belt 2. A screw 14 is installed on the table surface of the workbench 1 via bearings. The moving plate 6 is connected to the screw 14 by threads. A motor 13 is fixedly installed on the table surface of the workbench 1. The screw 14 is driven by the motor 13. A sliding groove is opened on the table surface of the workbench 1. A guide block is fixedly installed at the bottom of the moving plate 6 and is embedded in the sliding groove.

[0017] A limiting plate 4 is fixedly installed between the two baffles 3. The limiting plate 4 is in contact with the upper edge of the conveyor belt 2. A fixing plate 5 is fixedly installed on one outer wall of the limiting plate 4. The fixing plate 5 is located below the pressure plate 8. An adsorption plate 12 is fixedly installed between the two baffles 3. The adsorption plate 12 is in contact with the upper edge of the conveyor belt 2. The adsorption plate 12 is installed at the end of the conveyor belt 2 near the roller brush 10.

[0018] Example: To facilitate the inspection of PCB boards, special molds are inserted into both sides of the PCB board. The PCB board is relatively thin and cannot be placed stably on the work station. Therefore, molds are used to facilitate the placement and stress of the board. The outer wall of one set of molds is covered with a magnetic plate. The molds with magnetic plates are attracted together to achieve the effect of fixing multiple PCB boards together. The bottom of the molds without magnetic plates is opened with slots that are adapted to the shape of the fixing plate 5 and are placed on the fixing plate 5. The mold at the bottom of the outermost PCB board is attached to the limiting plate 4. The front and rear outer walls of the mold are clamped by two baffles 3. Subsequently, hydraulic cylinder 7 drives pressure plate 8 to descend, continuously applying a stable force to the mold on top of the board. After a period of testing, hydraulic cylinder 7 drives pressure plate 8 to rise. After motor 13 starts, it drives screw 14 to rotate. Screw 14 drives moving plate 6 to move on worktable 1. Moving plate 6 drives hydraulic cylinder 7, which in turn drives pressure plate 8 to move a certain distance, aligning the edge of the partition plate at one end of pressure plate 8 with the contact point between the magnetic plate on the mold. Then, hydraulic cylinder 7 drives pressure plate 8 to descend, and the edge of pressure plate 8 fits into the contact point of the mold, placing the PCB board closest to adsorption plate 12 with... The remaining boards are separated, and the separated PCB boards are flipped onto conveyor belt 2. After conveyor belt 2 starts and rotates for a certain period of time, it carries the boards to the adsorption plate 12. The adsorption plate 12 is made of ferrous metal. The magnetic plate of the mold on one side of the board is adsorbed and fixed to the adsorption plate 12. Then, cylinder 11 is activated, which drives roller brush 10 to approach the PCB board through connecting rod 9. Roller brush 10 is coated with high-gloss pigment. Cylinder 11 extends and retracts, causing roller brush 10 to brush the board twice. After a period of time, the operator removes the board that has been painted. The remaining boards are painted in sequence. If the board cracks due to prolonged pressure, obvious marks will appear on the painted surface, making it easy for the operator to identify.

[0019] It should be noted that the parts not covered in this utility model are the same as or can be implemented using existing technology; the various drives in this utility model can be implemented by corresponding power structures such as cylinders, oil cylinders, electric cylinders, and motors in conjunction with connecting rods, guide rods, etc., and are not limited to the structures described in the specification and the drawings.

Claims

1. A mechanical performance testing device for PCB board inspection, comprising a worktable (1) and testing components mounted on the worktable (1), characterized in that: The test assembly includes a pressure plate (8), a conveyor and a roller brush (10). The conveyor is installed on the table surface of the workbench (1). The conveyor is a belt conveyor and includes a conveyor belt (2) and two baffles (3). The conveyor belt (2) is movably installed between the two baffles (3). The pressure plate (8) is movably positioned above the conveyor belt (2). The roller brush (10) is movably positioned outside the baffles (3). A cylinder (11) is fixedly installed at the bottom of the workbench (1). Both ends of the roller brush (10) are connected to connecting rods (9) via bearings. The output end of the cylinder (11) is fixedly connected to the two connecting rods (9).

2. The mechanical performance testing device for PCB board inspection according to claim 1, characterized in that: A movable plate (6) is movably installed on the table surface of the workbench (1). A hydraulic cylinder (7) is fixedly installed on the upper part of the outer wall of the movable plate (6). The output end of the hydraulic cylinder (7) faces the conveyor belt (2) and is fixedly connected to the pressure plate (8). A partition plate is fixedly installed at both ends of the pressure plate (8). The partition plate is in the shape of a right trapezoid, and the edge of the acute angle end of the partition plate faces the conveyor belt (2).

3. The mechanical performance testing device for PCB board inspection according to claim 1, characterized in that: A limiting plate (4) is fixedly installed between the two baffles (3). The limiting plate (4) is attached to the upper edge of the conveyor belt (2). A fixing plate (5) is fixedly installed on one side of the outer wall of the limiting plate (4). The fixing plate (5) is located below the pressure plate (8).

4. The mechanical performance testing device for PCB board inspection according to claim 1, characterized in that: An adsorption plate (12) is fixedly installed between the two baffles (3). The adsorption plate (12) is attached to the upper edge of the conveyor belt (2). The adsorption plate (12) is installed at one end of the conveyor belt (2) near the roller brush (10).

5. The mechanical performance testing device for PCB board inspection according to claim 1, characterized in that: A screw (14) is mounted on the table surface of the workbench (1) via a bearing. The moving plate (6) is connected to the screw (14) via a thread. A motor (13) is fixedly mounted on the table surface of the workbench (1). The screw (14) is driven by the motor (13). A sliding groove is provided on the table surface of the workbench (1). A guide block is fixedly mounted on the bottom of the moving plate (6). The guide block is embedded in the sliding groove.

Images