A jacking device for PCB detection

Abstract

The utility model is suitable for electronic manufacturing equipment technical field provides a kind of jacking device for PCB detection, including support frame, multiple evenly distributed guide rods are slidably connected on the support frame, multiple guide rods lower end are fixedly connected with connecting plate, multiple guide rods upper end are fixedly connected with placing plate, the through type screw rod stepper motor is fixedly connected with the support frame lower end surface, and the through type screw rod stepper motor inner thread is connected with screw rod, and the screw rod lower end is rotatably connected with connecting plate;Symmetrically distributed chute is opened on the placing plate, the sliding block is slidably connected in the two chute inner walls, the clamping block is fixedly connected on the sliding block upper end, and the clamping block and placing plate upper end surface abut, and the linkage assembly is cooperatively arranged between the two sliding blocks and screw rod.The utility model has the advantages of simple structure, convenient operation and reduced equipment cost.

Description

Technical Field

[0001] This utility model relates to the field of electronic manufacturing equipment technology, and in particular to a lifting device for PCB board inspection. Background Technology

[0002] In the electronics manufacturing industry, PCB quality inspection is a crucial step in ensuring the reliability of electronic products. A PCB inspection lifting device is an auxiliary device designed for use in the circuit board testing process.

[0003] Most existing lifting devices can lift circuit boards, but they generally use complex mechanical structures with multiple components working together. For example, the clamping device includes parallel dual-station clamping components, each station is equipped with independently driven pneumatic grippers and manual fine-tuning mechanisms. This design requires the operator to coordinate the movement trajectories of four sets of actuators in order to complete the clamping and positioning of the circuit board. The clamping structure is relatively complex and inconvenient to operate.

[0004] Therefore, in view of the above situation, there is an urgent need to develop a lifting device for PCB board inspection to overcome the shortcomings in current practical applications. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a lifting device for PCB board inspection, which aims to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A lifting device for PCB board inspection includes a support frame with multiple evenly distributed guide rods slidably connected to it. A connecting plate is fixedly connected between the lower ends of the guide rods, and a placement plate is fixedly connected between the upper ends of the guide rods. A through-type lead screw stepper motor is fixedly connected to the lower end of the support frame, and a lead screw is internally threaded into the through-type lead screw stepper motor. The lower end of the lead screw is rotatably connected to the connecting plate. The placement plate has symmetrically distributed sliding grooves, and sliders are slidably connected to the inner walls of two of the sliding grooves. Clamping blocks are fixedly connected to the upper ends of the sliders, and the clamping blocks abut against the upper end of the placement plate. A linkage component is configured between the two sliders and the lead screw. By cooperating with the through-type lead screw stepper motor, the lead screw, and the linkage component, the two sliders can be driven to move closer or further apart, and the placement plate can be driven to rise or fall.

[0008] A further technical solution is that a limiting groove is formed on both sides of the inner wall of each groove, and a limiting block is slidably connected to the inner wall of each limiting groove, and the limiting block is fixedly connected to the slider.

[0009] In a further technical solution, the slider and the two corresponding limiting blocks are an integral structure.

[0010] In a further technical solution, the linkage component includes a first rotating plate, a fixed shaft, and a second rotating plate; the lower end of the placement plate is fixedly connected to the fixed shaft, the first rotating plate is rotatably connected to the fixed shaft, both ends of the first rotating plate are rotatably connected to the second rotating plate, and the other end of the second rotating plate is rotatably connected to the bottom end face of the slider.

[0011] In a further technical solution, a push plate is fixedly connected to the upper end of the lead screw, and a push rod is fixedly connected to the lower end of the first rotating plate, with the push rod being fixedly connected to the push plate.

[0012] In summary, the embodiments of this utility model have the following beneficial effects compared with the prior art:

[0013] 1. Place the PCB board on the placement plate. The lead screw drives the push plate to rotate. Then, the push plate drives the first rotating plate to rotate around the fixed axis via the push rod. After that, the first rotating plate drives the slider to slide along the inner wall of the slide groove via the second rotating plate. The slider drives the clamping block to move, thereby pushing the PCB board to the middle of the placement plate and clamping it until the slider abuts against one end of the inner wall of the slide groove, thereby restricting the rotation of the lead screw. Then, the through-type lead screw stepper motor drives the lead screw to move along the axis of the lead screw. The lower end of the lead screw drives the guide rod to rise through the connecting plate. Then, the guide rod drives the placement plate to rise, thereby driving the PCB board to rise. The structure is simple and the operation is convenient.

[0014] 2. By using a through-type lead screw stepper motor and a combination of lead screw and linkage components, it can drive the two sliders to move closer or further apart, and also drive the placement plate to rise and fall, effectively reducing the number of power components and lowering equipment costs.

[0015] To more clearly illustrate the structural features and effects of this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This utility model Figure 1 A schematic diagram of the three-dimensional cross-section structure;

[0018] Figure 3 This utility model Figure 1 A three-dimensional structural diagram of the middle section.

[0019] In the diagram: 1. Support frame; 2. Guide rod; 3. Connecting plate; 4. Lead screw; 5. Through-type lead screw stepper motor; 6. Placement plate; 7. Slide groove; 8. Slider; 9. Clamping block; 10. Limiting groove; 11. Limiting block; 12. Linkage assembly; 121. First rotating plate; 122. Push plate; 123. Fixed shaft; 124. Push rod; 125. Second rotating plate. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.

[0021] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0022] like Figures 1-3 As shown in the figure, this utility model embodiment provides a lifting device for PCB board inspection, including a support frame 1. A plurality of evenly distributed guide rods 2 are slidably connected to the support frame 1. A connecting plate 3 is fixedly connected between the lower ends of the plurality of guide rods 2. A placement plate 6 is fixedly connected between the upper ends of the plurality of guide rods 2. A through-type lead screw stepper motor 5 is fixedly connected to the lower end face of the support frame 1, and a lead screw 4 is internally threaded to the through-type lead screw stepper motor 5. The lower end of the lead screw 4 is rotatably connected to the connecting plate 3 through a bearing (not marked in the figure). The placement plate 6 has symmetrically distributed sliding grooves 7. A slider 8 is slidably connected to the inner wall of each of the two sliding grooves 7. A clamping block 9 is fixedly connected to the upper end of each slider 8, and the clamping block 9 abuts against the upper end face of the placement plate 6. A linkage component 12 is provided between the two sliders 8 and the lead screw 4. By cooperating with the through-type lead screw stepper motor 5, the lead screw 4 and the linkage component 12, the two sliders 8 can be driven to move closer or further apart, and the placement plate 6 can be driven to rise and fall.

[0023] Furthermore, each of the sliding grooves 7 has a limiting groove 10 on both sides of its inner wall, and a limiting block 11 is slidably connected to the inner wall of the limiting groove 10, and the limiting block 11 is fixedly connected to the slider 8.

[0024] Furthermore, the slider 8 and the corresponding two limiting blocks 11 are an integral structure.

[0025] like Figure 2 and 3As shown, the linkage component 12 includes a first rotating plate 121, a fixed shaft 123, and a second rotating plate 125; the lower end of the placement plate 6 is fixedly connected to the fixed shaft 123, the first rotating plate 121 is rotatably connected to the fixed shaft 123, the two ends of the first rotating plate 121 are rotatably connected to the second rotating plate 125, and the other end of the second rotating plate 125 is rotatably connected to the bottom end face of the slider 8.

[0026] Furthermore, a push plate 122 is fixedly connected to the upper end of the lead screw 4, and a push rod 124 is fixedly connected to the lower end of the first rotating plate 121, and the push rod 124 is fixedly connected to the push plate 122.

[0027] In practical applications, the through-type lead screw stepper motor 5 is started, and then the through-type lead screw stepper motor 5 drives the lead screw 4 to rotate. Then the lead screw 4 drives the push plate 122 to rotate around the axis of the lead screw 4. Next, the push plate 122 drives the push rod 124 to rotate around the axis of the lead screw 4. Then the push rod 124 drives the first rotating plate 121 to rotate around the fixed shaft 123. Then the first rotating plate 121 drives the slider 8 to slide along the inner wall of the slide groove 7 through the second rotating plate 125, thereby pushing the PCB board to the middle of the placement plate 6 until the slider 8 abuts against one end of the inner wall of the slide groove 7, thereby restricting the slider 8 from continuing to slide. At this time, the slider 8 is stationary, thereby restricting the second rotating plate 125, the first rotating plate 121, the push rod 124 and the push plate 122 to move in the same direction, thereby restricting the rotation of the lead screw 4. Then the through-type lead screw stepper motor 5 drives the lead screw 4 to move along the axis of the lead screw 4.

[0028] It is understood that the through-type lead screw stepper motor 5 is existing technology. The through-type lead screw stepper motor 5 and the lead screw 4 form a linkage relationship: when the lead screw 4 maintains rotational freedom, the through-type lead screw stepper motor 5 can drive the lead screw 4 to rotate, and at this time the lead screw 4 does not produce axial displacement; when the rotation of the lead screw 4 is restricted, the through-type lead screw stepper motor 5 can drive the lead screw 4 to move linearly along its axis; when the slider 8 abuts against the inner wall of the two sliding grooves 7 that are close to each other, the clamping block 9 just clamps the PCB board.

[0029] In this embodiment of the utility model, the PCB board is placed on the placement plate 6, and the push plate 122 is rotated by the lead screw 4. Then, the push plate 122 drives the first rotating plate 121 to rotate around the fixed axis 123 through the push rod 124. After that, the first rotating plate 121 drives the slider 8 to slide along the inner wall of the slide groove 7 through the second rotating plate 125. The slider 8 drives the clamping block 9 to move, thereby pushing the PCB board to the middle of the placement plate 6 and clamping it until the slider 8 abuts against one end of the inner wall of the slide groove 7, thereby restricting the rotation of the lead screw 4. Then, the through-type lead screw stepper motor 5 drives the lead screw 4 to move along the axis of the lead screw 4. The lower end of the lead screw 4 drives the guide rod 2 to rise through the connecting plate 3. Then, the guide rod 2 drives the placement plate 6 to rise, thereby driving the PCB board to rise. The structure is simple and the operation is convenient. By cooperating with the through-type lead screw stepper motor 5, the lead screw 4 and the linkage component 12, it is possible to drive the two sliders 8 to move closer or further apart, and to drive the placement plate 6 to rise and fall, effectively reducing the number of power components and reducing equipment costs.

[0030] The working principle of this utility model is as follows: A PCB board is placed on the placement plate 6, and then the lead screw 4 is started. The lead screw 4 drives the push plate 122 to rotate. Then, the push plate 122 drives the first rotating plate 121 to rotate around the fixed axis 123 via the push rod 124. After that, the first rotating plate 121 drives the slider 8 to slide along the inner wall of the slide groove 7 via the second rotating plate 125. The slider 8 drives the clamping block 9 to move, thereby pushing the PCB board to the middle of the placement plate 6 and clamping it until the slider 8 abuts against one end of the inner wall of the slide groove 7, thus restricting the rotation of the lead screw 4. Then, the through-type lead screw stepper motor 5 drives the lead screw 4 to move along the axis of the lead screw 4. The connecting plate 3 drives the guide rod 2 to rise, and then the guide rod 2 drives the placement plate 6 to rise, thereby driving the PCB board to rise until the PCB board reaches the target height. Then, the through-type lead screw stepper motor 5 controls the lead screw 4 to move in the opposite direction. The lead screw 4 sequentially drives the push plate 122, push rod 124, first rotating plate 121, second rotating plate 125 and slider 8 to move in the opposite direction, thereby driving the clamping block 9 to detach from the PCB board. Then, the robot arm transfers the PCB board to the next process. As the lead screw 4 continues to rotate, when the slider 8 abuts against the inner wall of one end of the slide groove 7 again, the lead screw 4 descends vertically, thereby driving the placement plate 6 to descend through the connecting plate 3 and the guide rod 2.

[0031] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A lifting device for PCB board inspection, comprising a support frame (1), characterized in that, The support frame (1) is slidably connected with a plurality of evenly distributed guide rods (2), and a connecting plate (3) is fixedly connected between the lower ends of the plurality of guide rods (2). A placement plate (6) is fixedly connected between the upper ends of the plurality of guide rods (2). A through-type lead screw stepper motor (5) is fixedly connected to the lower end face of the support frame (1), and a lead screw (4) is internally threaded into the through-type lead screw stepper motor (5). The lower end of the lead screw (4) is rotatably connected to the connecting plate (3). The placement plate (6) has symmetrically distributed... The two slide grooves (7) are slidably connected to the inner walls of the two slide grooves (7). The upper ends of the slide grooves (8) are fixedly connected to the clamping blocks (9), and the clamping blocks (9) abut against the upper surface of the placement plate (6). The two slide grooves (8) and the lead screw (4) are connected to a linkage component (12). By using the through-type lead screw stepper motor (5), the lead screw (4) and the linkage component (12) can drive the two slide grooves (8) to move closer or further away from each other, and can also drive the placement plate (6) to rise and fall.

2. The PCB board inspection lifting device according to claim 1, characterized in that, Each of the slide grooves (7) has a limiting groove (10) on both sides of its inner wall. The inner wall of each limiting groove (10) is slidably connected to a limiting block (11), and the limiting block (11) is fixedly connected to the slider (8).

3. The PCB board inspection lifting device according to claim 2, characterized in that, The slider (8) and the corresponding two limiting blocks (11) are an integral structure.

4. The PCB board inspection lifting device according to claim 1, characterized in that, The linkage component (12) includes a first rotating plate (121), a fixed shaft (123), and a second rotating plate (125); the lower end of the placement plate (6) is fixedly connected to the fixed shaft (123), the first rotating plate (121) is rotatably connected to the fixed shaft (123), the two ends of the first rotating plate (121) are rotatably connected to the second rotating plate (125), and the other end of the second rotating plate (125) is rotatably connected to the bottom end face of the slider (8).

5. The PCB board inspection lifting device according to claim 4, characterized in that, The upper end of the lead screw (4) is fixedly connected to a push plate (122), and the lower end of the first rotating plate (121) is fixedly connected to a push rod (124), and the push rod (124) is fixedly connected to the push plate (122).

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