Plate arranging mechanism and automatic size measuring device

Abstract

The utility model relates to the technical field of PCB detection, in particular to a board arranging mechanism and an automatic size measuring device, comprising a table top and two board arranging assemblies, each board arranging assembly comprises a driving member and a clamping member, the edge of the table top is provided with a first reference edge and a second reference edge, the table top is provided with a plurality of chutes, the driving member is arranged at the lower end of the table top, and the clamping member is arranged at the lower end of the table top. The sliding grooves are formed in the table top and connected with the clamping piece, the clamping piece is in sliding fit with the table top, the clamping piece is arranged in the directions of the first reference edge and the second reference edge, and the sliding grooves are formed in the moving direction of the clamping piece. Through cooperative cooperation of the first reference edge and the second reference edge with the bidirectional movable clamping piece, automatic centering and positioning of the PCB are realized, the arrangement of the clamping piece ensures the straightness of a motion trail and the repeated positioning precision in the clamping process, full-process automation of PCB clamping measurement is realized, and the production efficiency is improved. And high-precision size data are synchronously output while posture correction is completed, so that the detection efficiency and the data reliability are greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of PCB board inspection technology, and in particular to a board assembly mechanism and an automatic dimension measuring device. Background Technology

[0002] In the PCB manufacturing process, accurate dimensional inspection is a crucial step in ensuring product quality. Currently, common inspection methods typically require operators to manually place the PCB on a measuring platform, manually adjust its position to align with the reference edge, and then use measuring instruments to measure its dimensions.

[0003] This method has obvious shortcomings in practical applications: First, manual placement makes it difficult to ensure that the PCB board is completely aligned with the reference edge, especially when the PCB board is slightly tilted, which can easily lead to measurement errors; second, positioning and measurement are carried out in separate steps, which is not only inefficient, but may also cause secondary displacement of the PCB board during transportation.

[0004] While existing automated equipment can achieve initial positioning of PCB boards, most of them use a unidirectional clamping structure, which cannot simultaneously and accurately calibrate the two adjacent sides of the PCB board, and lacks real-time measurement capabilities, still requiring subsequent independent inspection processes. Utility Model Content

[0005] The purpose of this utility model is to provide a board-mounting mechanism and an automatic dimension measuring device, which aims to solve the technical problems that although existing automated equipment can achieve the initial positioning of PCB boards, most of them adopt a unidirectional clamping structure, which cannot simultaneously and accurately correct the two adjacent sides of the PCB board, and lack real-time measurement function, and still need to rely on subsequent independent inspection processes.

[0006] To achieve the above objectives, this utility model employs a plate-forming mechanism, comprising a table and two plate-forming components. Each plate-forming component includes a driving member and a clamping member. The edge of the table has a first reference edge and a second reference edge. The table has multiple sliding grooves. The driving member is disposed at the lower end of the table and connected to the clamping member. The clamping member slides with the table. The clamping member is arranged along two directions: the first reference edge and the second reference edge. The multiple sliding grooves are respectively arranged along the movement direction of the clamping member.

[0007] The clamping component includes multiple grippers, a movable plate, two sliders, and two linear guides. Each gripper includes a horizontal section and a vertical section. The grippers are L-shaped, and the multiple grippers are respectively adapted to the corresponding sliding grooves. The vertical section slides in cooperation with the corresponding sliding grooves. The horizontal section is located above the platform, and the end of the vertical section away from the horizontal section is fixedly connected to one end of the movable plate. The linear guides are located below the platform, and the sliders are located on the movable plate and slide in cooperation with the linear guides.

[0008] The driving component includes a clamp and a rodless cylinder. One end of the clamp is fixedly connected to the movable plate. The clamp is located outside the sliding block of the rodless cylinder, and the rodless cylinder is located at the lower end of the platform.

[0009] Both the first reference edge and the second reference edge have inclined surfaces on their inner sides.

[0010] This utility model also provides an automatic dimension measuring device, including a frame, a wall panel, a measuring unit, and a processing unit. The measuring unit includes a linear displacement sensor and a connecting plate. The processing unit includes a processor and a display. One end of the linear displacement sensor is connected to one end of the connecting plate. The end of the connecting plate away from the linear displacement sensor is fixedly connected to the clamp. The processor is electrically connected to the linear displacement sensor and the display.

[0011] The measuring unit further includes a buckle, which is disposed below the platform and slidably disposed on the side wall of the linear displacement sensor.

[0012] The measuring unit further includes a photoelectric switch, which is electrically connected to the processor and is located at the lower end of the platform.

[0013] The wall panel has an opening near the linear displacement sensor.

[0014] This utility model discloses a board-forming mechanism and an automatic dimensional measuring device. The clamping member, together with the first reference edge and the second reference edge, forms a board-forming area. Through the coordinated cooperation of the first reference edge, the second reference edge, and the bidirectional movable clamping member, automatic centering and positioning of the PCB board is achieved. The clamping member ensures the straightness of the motion trajectory and the repeatability of the positioning accuracy during clamping. By integrating the linear displacement sensor with the moving parts of the board-forming mechanism, the mechanical displacement during clamping is directly converted into dimensional data. The triggering mechanism of the measuring unit is combined with the closed-loop control logic of the processor to achieve full automation of the PCB board clamping and measurement process. The integrated board-forming and measurement functions avoid the cumulative errors caused by multiple clamping in traditional processes. While completing posture correction, high-precision dimensional data is output simultaneously, greatly improving detection efficiency and data reliability. Therefore, this device can perform effective and stable clamping, accurately correct the two adjacent sides of the PCB board at the same time, and has a real-time measurement function. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a top view of the tabletop of this utility model.

[0018] Figure 3 This is a bottom view of the tabletop of this utility model.

[0019] Figure 4 This is a schematic diagram of the structure of the whole plate assembly of this utility model.

[0020] Figure 5 This is a side view of the integral plate assembly of this utility model.

[0021] Figure 6 This is a structural diagram showing the connection between the measuring unit and the whole board assembly of this utility model.

[0022] Figure 7 This is a schematic diagram of the control principle of this utility model.

[0023] 1-Tabletop, 2-Driver, 3-Clamping component, 4-First reference edge, 5-Second reference edge, 6-Slide groove, 7-Gripper, 8-Moving plate, 9-Slider, 10-Linear rail, 11-Horizontal section, 12-Vertical section, 13-Clamping sleeve, 14-Rodless cylinder, 15-Inclined surface, 16-Frame, 17-Wall panel, 18-Linear displacement sensor, 19-Connecting plate, 20-Processor, 21-Display, 22-Snap-on, 23-Photoelectric switch, 24-Opening. Detailed Implementation

[0024] Please see Figures 1 to 7 ,in, Figure 1 This is a schematic diagram of the overall structure of this utility model. Figure 2 This is a top view of the tabletop of this utility model. Figure 3 This is a bottom view of the tabletop of this utility model. Figure 4 This is a schematic diagram of the structure of the whole plate assembly of this utility model. Figure 5 This is a side view of the integral plate assembly of this utility model. Figure 6 This is a structural diagram showing the connection between the measuring unit and the entire board assembly of this utility model. Figure 7 This is a schematic diagram of the control principle of this utility model.

[0025] This utility model provides a plate-forming mechanism, including a table 1 and two plate-forming assemblies. Each plate-forming assembly includes a driving member 2 and a clamping member 3. The edge of the table 1 has a first reference edge 4 and a second reference edge 5. The table 1 has a plurality of sliding grooves 6. The driving member 2 is disposed at the lower end of the table 1 and is connected to the clamping member 3. The clamping member 3 is slidably engaged with the table 1. The clamping member 3 is arranged along two directions, the first reference edge 4 and the second reference edge 5. The plurality of sliding grooves 6 are respectively arranged along the movement direction of the clamping member 3.

[0026] In this embodiment, the clamping member 3, together with the first reference edge 4 and the second reference edge 5, forms the whole board area. Through the coordinated cooperation of the first reference edge 4 and the second reference edge 5 with the bidirectional movable clamping member 3, the automatic centering and positioning of the PCB board is realized. The L-shaped gripper 7 design of the clamping member 3 enables the horizontal segment 11 and the vertical segment 12 to undertake the clamping and guiding functions respectively. With the precision sliding structure of the slide groove 6 and the linear guide 10, the straightness of the movement trajectory and the repeatability of the positioning accuracy are ensured during the clamping process. The rodless cylinder 14 is equipped with a solenoid valve. The driving method of the rodless cylinder 14 and the solenoid valve simplifies the mechanism layout and can quickly respond to control commands. The overall structure is compact and the clamping force is evenly distributed. It can adapt to the rapid positioning requirements of PCB boards of different sizes and significantly improve the efficiency and positioning consistency of the whole board.

[0027] Furthermore, the clamping member 3 includes multiple grippers 7, a movable plate 8, two sliders 9, and two linear guides 10. Each gripper 7 includes a horizontal section 11 and a vertical section 12. The gripper 7 is L-shaped. The multiple grippers 7 are respectively adapted to the corresponding sliding grooves 6. The vertical section 12 is slidably engaged with the corresponding sliding grooves 6. The horizontal section 11 is located above the platform 1. The end of the vertical section 12 away from the horizontal section 11 is fixedly connected to one end of the movable plate 8. The linear guides 10 are disposed below the platform 1. The sliders 9 are disposed on the movable plate 8 and are slidably engaged with the linear guides 10.

[0028] In this embodiment, the vertical section 12 limits the movement trajectory of the gripper 7, the horizontal section 11 clamps the PCB board, the two linear rails 10 are fixed to the bottom of the table 1 by bolts, and the two sliders 9 are rigidly connected to the movable plate 8 to form a high-precision sliding pair, which ensures the stability and accuracy of the movement of the clamping component 3.

[0029] Furthermore, the driving component 2 includes a sleeve 13 and a rodless cylinder 14. One end of the sleeve 13 is fixedly connected to the movable plate 8. The sleeve 13 is disposed on the outside of the sliding block of the rodless cylinder 14. The rodless cylinder 14 is disposed at the lower end of the platform 1.

[0030] In this embodiment, the rodless cylinder 14 directly transmits driving force through a magnetic coupling or mechanical slider 9, eliminating the need for the extended piston rod structure of traditional cylinders and reducing the overall length of the drive assembly. This feature allows the rodless cylinder 14 to be completely housed under the table 1, avoiding interference with the movement trajectory of the gripper 7. Furthermore, the rodless cylinder 14 employs a closed guide rail structure, effectively isolating dust and debris from the PCB processing environment, thereby reducing the maintenance frequency of the mechanism. Since PCBs are generally rectangular, the cylinders at the two locations can use different ranges. The rodless cylinder 14 is available in RMS20X350LB and RMS20X450LB models.

[0031] Furthermore, the inner sides of both the first reference edge 4 and the second reference edge 5 have inclined surfaces 15.

[0032] In this embodiment, the inclined surface 15 effectively guides the PCB board into the board-forming area, avoiding mechanical jamming caused by initial placement deviation. During use, when the PCB board is placed in the board-forming area, the operator activates the drive unit 2. The solenoid valve switches the air path, causing the rodless cylinder 14 to drive the gripper 7 to move towards each other along the slide groove 6. The inclined surface 15 guides the edge of the PCB board to automatically align with the first reference edge and the second reference edge. The horizontal section 11 clamps the PCB board from both sides. When the two sides of the PCB board furthest from the gripper 7 move to contact the first reference edge 4 and the second reference edge 5, the solenoid valve cuts off the air supply to maintain the positioning state. At this time, the four sides of the PCB board are constrained by the first reference edge 4, the second reference edge 5, and the gripper 7, completing the automatic board-forming process.

[0033] This utility model also provides an automatic dimension measuring device, including the plate-forming mechanism as described above, and further including a frame 16, a wall panel 17, a measuring unit, and a processing unit. The measuring unit includes a linear displacement sensor 18 and a connecting plate 19. The processing unit includes a processor 20 and a display 21. One end of the linear displacement sensor 18 is connected to one end of the connecting plate 19. The end of the connecting plate 19 away from the linear displacement sensor 18 is fixedly connected to the clamp 13. The processor 20 is electrically connected to the linear displacement sensor 18, the solenoid valve, and the display 21.

[0034] In this embodiment, the connecting plate 19 is rigidly connected to the clamping sleeve 13, and the measuring rod axis of the linear displacement sensor 18 is coaxial with the movement direction of the gripper 7, ensuring that the measurement direction is coaxial with the clamping movement and reducing errors. The linear displacement sensor 18 is used to record the displacements ΔL1 and ΔL2 of the two grippers 7 when they are in their final positions. In this embodiment, the linear displacement sensor 18 is model HLC350 and HLC450. The processor 20 is used to control the opening and closing of the solenoid valve and calculate the actual size of the PCB board using the formula L = L0 - ΔL, where L0 is the initial value of the reference edge spacing. It is worth noting that the processor 20 has a timing module. By pre-setting the opening time threshold of the solenoid valve, it is ensured that within the working cycle of this threshold, regardless of the initial position of the PCB board, the horizontal segment 11 of the clamping member 3 can push the PCB board to the full board position that is completely in contact with the first reference edge 4 and the second reference edge 5. The threshold is set to 5s. The display 21 is used to display the final PCB board size result.

[0035] Furthermore, the measuring unit also includes a buckle 22, which is disposed below the platform 1 and is slidably disposed on the side wall of the linear displacement sensor 18.

[0036] In this embodiment, the buckle 22 can prevent the linear displacement sensor 18 from vibrating and shifting. It is worth noting that, in order to avoid motion interference between the linear displacement sensors 18 in the two directions during clamping, a pad is provided between one of the linear displacement sensors 18 and the table surface 1, so that the two linear displacement sensors 18 are not on the same plane.

[0037] Furthermore, the measuring unit also includes a photoelectric switch 23, which is electrically connected to the processor 20 and is disposed at the lower end of the platform 1.

[0038] In this embodiment, the photoelectric switch 23 is used to detect the position of the PCB board. After detecting that the PCB board is in place, it sends a trigger signal to the processor 20.

[0039] Furthermore, the wall panel 17 has an opening 24 near the linear displacement sensor 18.

[0040] In this embodiment, during use, when the PCB board is placed in the board area, the processor 20 sends an opening command to the solenoid valve and starts the timing module. When the solenoid valve remains open, and the timing reaches 5 seconds, the processor 20 automatically closes the solenoid valve to cut off the air supply and records the measured value ΔL of the linear displacement sensor 18 at this time. At this time, the rodless cylinder 14 stops moving and enters a self-locking state, and the clamping member 3 maintains its current position to form a mechanical constraint, completing the board positioning. At the same time, the processor 20 calculates the actual size of the PCB board according to the formula L=L0-ΔL and outputs the result to the display 21.

[0041] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A plate-integrating mechanism, characterized in that, Includes the countertop and two full-panel assemblies; Each of the plate assemblies includes a drive member and a clamping member. The edge of the table has a first reference edge and a second reference edge. The table has multiple sliding grooves. The drive member is disposed at the lower end of the table and connected to the clamping member. The clamping member slides with the table. The clamping member is arranged along the first reference edge and the second reference edge. The multiple sliding grooves are respectively arranged along the movement direction of the clamping member.

2. The plate-integrating mechanism as described in claim 1, characterized in that, The clamping component includes multiple grippers, a movable plate, two sliders, and two linear guides. Each gripper includes a horizontal section and a vertical section. The grippers are L-shaped. The multiple grippers are respectively adapted to the corresponding sliding grooves. The vertical section slides in cooperation with the corresponding sliding grooves. The horizontal section is located above the platform. The end of the vertical section away from the horizontal section is fixedly connected to one end of the movable plate. The linear guides are located below the platform. The sliders are located on the movable plate and slide in cooperation with the linear guides.

3. The plate-integrating mechanism as described in claim 2, characterized in that, The driving component includes a clamp and a rodless cylinder. One end of the clamp is fixedly connected to the movable plate. The clamp is located outside the sliding block of the rodless cylinder, and the rodless cylinder is located at the lower end of the platform.

4. The plate-integrating mechanism as described in claim 3, characterized in that, Both the first reference edge and the second reference edge have inclined surfaces on their inner sides.

5. An automatic dimension measuring device, comprising the plate-setting mechanism as described in claim 4, characterized in that, It also includes a frame, wall panels, measurement units, and processing units; The measuring unit includes a linear displacement sensor and a connecting plate, and the processing unit includes a processor and a display. One end of the linear displacement sensor is connected to one end of the connecting plate, and the end of the connecting plate away from the linear displacement sensor is fixedly connected to the clamp. The processor is electrically connected to the linear displacement sensor and the display.

6. The automatic dimension measuring device as described in claim 5, characterized in that, The measuring unit also includes a buckle, which is disposed below the platform and slidably disposed on the side wall of the linear displacement sensor.

7. The automatic dimension measuring device as described in claim 6, characterized in that, The measuring unit also includes a photoelectric switch, which is electrically connected to the processor and is located at the lower end of the platform.

8. The automatic dimension measuring device as described in claim 7, characterized in that, The wall panel has an opening near the linear displacement sensor.

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