Circuit board depth control hole lossless rapid measurement device and measurement method
By designing the measuring stage and positioning mechanism, accurate positioning and stable fixation of the circuit board are achieved, solving the problem of inaccurate positioning in the non-destructive rapid measurement of deep holes in circuit boards, improving measurement accuracy and stability, and preventing damage to the circuit board.
Patent Information
- Application Number
- CN202511050111.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-29
- Publication Date
- 2025-10-17
AI Technical Summary
In existing technologies, the non-destructive rapid measurement process for controlled-depth vias on circuit boards cannot achieve precise movement and positioning, resulting in inaccurate and unstable measurement results.
By employing a combination of components such as a measuring platform, positioning mechanism, non-destructive testing components, motor, threaded rod, hydraulic cylinder, and cleaning brush, the circuit board can be accurately positioned and securely fixed, preventing misalignment and overvoltage damage.
It improves the accuracy and stability of circuit board measurement, ensures the accuracy and repeatability of measurement results, and prevents circuit boards from being damaged due to offset or overvoltage during the measurement process.
Smart Images
Figure CN120800286A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of line board control deep hole non-measurement, in particular to a line board control deep hole non-destructive rapid measurement device and measurement method. BACKGROUND
[0002] Non-destructive rapid measurement of line board control deep hole is an important technology for ensuring the size, position and quality of holes in PCB (Printed Circuit Board). Control deep hole is usually used for connecting conductive channels between different layers, requiring accurate measurement and not affecting the integrity of the line board.
[0003] In the prior art, before non-destructive rapid measurement of the line board, there is usually a problem that the line board cannot be accurately moved and positioned, which leads to the fact that the hole position on the line board cannot be accurately aligned with the working range of the measurement device during the measurement process, thereby affecting the accuracy and stability of the measurement result. Therefore, we propose a line board control deep hole non-destructive rapid measurement device and measurement method. SUMMARY
[0004] The present application proposes a line board control deep hole non-destructive rapid measurement device and measurement method.
[0005] The technical solution of the present application is as follows: a line board control deep hole non-destructive rapid measurement device, comprising a measurement table, a support column fixedly connected to the bottom of the measurement table, a moving frame fixedly connected to the top of the measurement table, a non-destructive measurement assembly arranged in the moving frame, a data display screen arranged on the side of the moving frame, and a positioning mechanism arranged on the top of the measurement table. The positioning mechanism comprises a mounting groove and a motor one, the mounting groove is opened in the top of the measurement table, the inner wall of the mounting groove is fixedly connected with the side of the motor one, the output shaft of the motor one is fixedly connected with a threaded rod, the circumferential surface of the threaded rod is threadedly connected with a threaded sleeve, and the top of the threaded sleeve is fixedly connected with a moving platform. The purpose is to ensure accurate positioning of the line board so that the non-destructive measurement assembly can measure the control deep hole.
[0006] The inside of the mounting groove is fixedly connected with a hydraulic cylinder, one end of the hydraulic cylinder is slidably connected with a stress rod through a piston, the stress rod is drivingly connected with a hydraulic rod through the hydraulic cylinder, and the end of the hydraulic rod away from the hydraulic cylinder is fixedly connected with a cleaning brush. The purpose is to clean the moving platform before work to prevent debris from causing the line board to be unstable.
[0007] The side of the hydraulic cylinder is fixedly connected with a return spring, and the end of the return spring away from the side of the hydraulic cylinder is fixedly connected with the circumferential surface of the stress rod. The purpose is to ensure that the stress rod can be automatically reset to reduce manual intervention.
[0008] One end of the force bar is located on the displacement trajectory of the moving platform, and the bottom of the cleaning brush is flush with the top of the moving platform, which ensures that the movement of the moving platform can extrude the force bar.
[0009] The top of the moving platform is provided with a pressing mechanism, the pressing mechanism comprises a power bin and a motor two, the power bin is opened in the inside of the moving platform, the inner wall of the power bin is fixedly connected with the side surface of the motor two, the output shaft of the motor two is fixedly connected with a rotating shaft, the circumferential surface of the rotating shaft is fixedly penetrated with a gear one, the inner wall of the power bin is rotatably connected with a supporting shaft, the circumferential surface of the supporting shaft is fixedly penetrated with a gear two, the inside of the power bin is provided with a sliding groove, the inside of the sliding groove is fixedly connected with a rack, the top of the rack is fixedly connected with a moving rod, the end of the moving rod away from the top of the rack is fixedly connected with a pressing rod, which prevents the circuit board from shaking during positioning, causing deviation.
[0010] The gear one and the gear two are engaged with each other, the number of the rack, the moving rod and the pressing rod is two, and they are mutually symmetrical along the vertical central axis of the moving platform, the side surfaces of the two racks are respectively engaged with the circumferential surfaces of the gear one and the gear two, which ensures that the rotation of the gear one can drive the gear two to rotate and can drive the two racks to move.
[0011] The inside of the power bin is provided with an anti-overpressure mechanism, the anti-overpressure mechanism comprises an air bag, the air bag is fixedly connected in the inside of the power bin, the top of the air bag is slidably connected with a stress plate, the top of the stress plate is fixedly connected with a pressure transmission plate, the side surface of the air bag is slidably connected with a moving plate, the side surface of the moving plate is fixedly connected with a connecting rod, one end of the connecting rod is fixedly connected with a locking tooth plate, which prevents the pressure of the pressing rod from being too large and damaging the circuit board.
[0012] The top of the air bag is fixedly connected with a compression spring, one end of the compression spring away from the top of the air bag is fixedly connected with the bottom of the pressure transmission plate, which ensures that the pressure transmission plate can move according to the pressure.
[0013] The number of the connecting rods is two, and they are mutually symmetrical along the vertical central axis of the air bag, the initial state of the compression spring is relaxation, which ensures that the air bag can be uniformly stressed during operation, thereby maintaining the stability and symmetry of the system.
[0014] A measuring method of a circuit board depth control hole nondestructive rapid measurement device, comprising the following steps: S1, the staff starts motor one, drives screw rod to rotate, pushes mobile platform to move, and the cleaning brush cleans the mobile platform, ensures that the circuit board is placed stably and positioned to the measurement area, and the measurement data is displayed through the data display screen, facilitating recording and analysis; S2, start motor two, drive gear one and gear two to rotate, drive the rack to move, drive the pressing rod through the moving rod to press the circuit board, prevent deviation; S3, when the pressing rod is too large pressure, the air bag is boosted to push the moving plate, the locking gear one and gear two stop the rack movement, prevent overpressure damage to the circuit board, and when the pressure decreases, the compression spring resets to release the lock.
[0015] The working principle and beneficial effects of the present application are: 1, the present application through motor one, screw rod and mobile platform and other components between the mutual cooperation, when need to measure the circuit board hole, the staff starts motor one, drives screw rod to rotate, drives the threaded sleeve to move in the installation groove, and then pushes the mobile platform, after the circuit board is placed, the platform positions it to the non-destructive measurement component working area for measurement, the measurement data is displayed through the data display screen, facilitating the staff recording and analysis, which achieves the effect of positioning the circuit board, improves the measurement accuracy and working efficiency of the circuit board.
[0016] 2, the present application through the cooperation between the motor two, rack and pressing rod and other components of the wiping mechanism, when placing the circuit board, start motor two, drive the rotating shaft to rotate, drive gear one and gear two to engage, gear rotation drives the rack to move in the sliding slot, the rack drives the pressing rod through the moving rod to press the circuit board, prevent deviation, which achieves the effect of pressing the circuit board, ensures the stable fixation of the circuit board, and improves the accuracy and stability of the measurement.
[0017] 3, the present application through the cooperation between the air bag, pressure transmission plate and locking tooth plate and other components of the overpressure prevention mechanism, when the pressing rod applies too much pressure, the pressure transmission plate compresses the air bag through the force plate, increases the air pressure to push the moving plate, drives the connecting rod to lock the tooth plate, locks the gear one and gear two, stops the rack movement, prevents the pressing rod from damaging the circuit board due to overpressure. When the pressure decreases, the compression spring resets to release the lock, which achieves the effect of preventing overpressure of the circuit board, effectively protects the circuit board and prevents damage due to overpressure.
[0018] 4, the present application through the cooperation between the hydraulic cylinder, cleaning brush and return spring and other components, in the process of moving the mobile platform, push the force rod to retract the hydraulic cylinder, and then activate the hydraulic rod to extend, drive the cleaning brush to clean the top of the platform, remove the platform surface debris, avoid foreign matter interference measurement results, improve the consistency of repeated measurement.
[0019] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0021] Figure 1 This is a schematic structural diagram of the overall three-dimensional appearance of the measuring platform of the present invention; Figure 2 It is a three-dimensional enlarged structural diagram of the positioning mechanism of the present invention; Figure 3 It is a three-dimensional enlarged structural diagram of the pressing mechanism of the present invention; Figure 4 It is a three-dimensional enlarged structural schematic diagram of the wiping mechanism of the present invention; Figure 5 For the present invention Figure 1 A is a schematic diagram of the three-dimensional magnified structure; Figure 6 For the present invention Figure 3 Schematic diagram of the three-dimensional magnified structure of B; Figure 7 For the present invention Figure 4 Schematic diagram of the three-dimensional magnified structure of C.
[0022] In the figure: 1. Measuring table; 2. Support column; 3. Moving frame; 4. Non-destructive measurement component; 5. Data display screen; 6. Positioning mechanism; 61. Mounting slot; 62. Motor 1; 63. Threaded rod; 64. Threaded sleeve; 65. Moving platform; 66. Hydraulic cylinder; 67. Force rod; 68. Hydraulic rod; 69. Cleaning brush; 610. Reset spring; 7. Pressing mechanism; 71. Power compartment; 72. Motor 2; 73. Rotating shaft; 74. Gear 1; 75. Support shaft; 76. Gear 2; 77. Slide; 78. Rack; 79. Moving rod; 710. Pressing rod; 8. Anti-overpressure mechanism; 81. Airbag; 82. Force plate; 83. Pressure transmission plate; 84. Moving plate; 85. Connecting rod; 86. Locking gear plate; 87. Compression spring. DETAILED DESCRIPTION
[0023] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0024] Example 1 like Figures 1-7As shown, the embodiment proposes a circuit board control deep hole nondestructive rapid measurement device, including measurement table 1, the bottom of measurement table 1 is fixedly connected with support column 2, the top of measurement table 1 is fixedly connected with moving frame 3, the inside of moving frame 3 is provided with nondestructive measurement assembly 4, the side of moving frame 3 is provided with data display screen 5, the top of measurement table 1 is provided with positioning mechanism 6; Positioning mechanism 6 includes installation slot 61 and motor one 62, installation slot 61 is opened in the top of measurement table 1, the inner wall of installation slot 61 is fixedly connected with the side of motor one 62, the output shaft of motor one 62 is fixedly connected with threaded rod 63, the circumferential surface of threaded rod 63 is screw connected with threaded sleeve 64, the top of threaded sleeve 64 is fixedly connected with moving platform 65, and the purpose is to ensure the accurate positioning of the circuit board, so that nondestructive measurement assembly 4 can measure the control deep hole.
[0025] The inside of installation slot 61 is fixedly connected with hydraulic cylinder 66, one end of hydraulic cylinder 66 is slidably connected with stress rod 67 through the piston, stress rod 67 is drivingly connected with hydraulic rod 68 through hydraulic cylinder 66, one end of hydraulic rod 68, away from the side of hydraulic cylinder 66, is fixedly connected with cleaning brush 69, and the purpose is to clean moving platform 65 before work, so as to prevent sundries from causing the circuit board to be unstable.
[0026] The side of hydraulic cylinder 66 is fixedly connected with return spring 610, one end of return spring 610, away from the side of hydraulic cylinder 66, is fixedly connected with the circumferential surface of stress rod 67, and the purpose is to ensure that stress rod 67 can be automatically reset, reducing manual intervention.
[0027] One end of stress rod 67 is located on the displacement track of moving platform 65, and the bottom of cleaning brush 69 is flush with the top of moving platform 65, and the purpose is to ensure that the movement of moving platform 65 can extrude stress rod 67.
[0028] When the hole of the circuit board needs to be measured in this embodiment, the staff starts the motor one 62, the output shaft of the motor one 62 rotates, the threaded rod 63 is driven to rotate by the output shaft of the motor one 62, the threaded rod 63 rotates, the threaded rod 63 rotates to drive the threaded sleeve 64 to move linearly in the installation slot 61, the threaded sleeve 64 moves to drive the moving platform 65 to move, the moving platform 65 moves to push the stress rod 67, the stress rod 67 is retracted into the hydraulic cylinder 66 under stress, at this time the hydraulic rod 68 is stretched out under the pressure of the liquid in the hydraulic cylinder 66, the hydraulic rod 68 moves to drive the cleaning brush 69 to move, the working surface cleans the top of the moving platform 65 in the process of moving the cleaning brush 69, ensures that the top of the moving platform 65 is clean, and ensures that the circuit board is placed stably without inclination, after the circuit board is placed, the moving platform 65 positions the circuit board to the working area of the non-destructive measurement assembly 4 for rapid measurement, the measured data is displayed on the data display screen 5, and the staff observes and records.
[0029] Embodiment 2 As shown in Figures 1-7 Based on the same idea as in the above embodiment 1, the top of the moving platform 65 is provided with a pressing mechanism 7, the pressing mechanism 7 includes a power bin 71 and a motor two 72, the power bin 71 is opened in the inside of the moving platform 65, the inner wall of the power bin 71 is fixedly connected with the side surface of the motor two 72, the output shaft of the motor two 72 is fixedly connected with a rotating shaft 73, the circumferential surface of the rotating shaft 73 is fixedly penetrated with a gear one 74, the inner wall of the power bin 71 is rotatably connected with a support shaft 75, the circumferential surface of the support shaft 75 is fixedly penetrated with a gear two 76, the inside of the power bin 71 is opened with a sliding groove 77, the inside of the sliding groove 77 is fixedly connected with a rack 78, the top of the rack 78 is fixedly connected with a moving rod 79, one end of the moving rod 79 away from the top of the rack 78 is fixedly connected with a pressing rod 710, which is to prevent the circuit board from shaking during positioning and causing deviation.
[0030] The gear one 74 and the gear two 76 are engaged with each other, the number of the rack 78, the moving rod 79 and the pressing rod 710 is two, and they are mutually symmetrical along the vertical central axis of the moving platform 65, the side surfaces of the two racks 78 are respectively engaged with the circumferential surfaces of the gear one 74 and the gear two 76, which is to ensure that the rotation of the gear one 74 can drive the gear two 76 to rotate, and at the same time can drive the two racks 78 to move.
[0031] The inside of the power bin 71 is provided with an anti-overpressure mechanism 8, which comprises an air bag 81 fixedly connected to the inside of the power bin 71, a stress plate 82 slidingly connected to the top of the air bag 81, a pressure transmission plate 83 fixedly connected to the top of the stress plate 82, a moving plate 84 slidingly connected to the side of the air bag 81, a connecting rod 85 fixedly connected to the side of the moving plate 84, and a locking tooth plate 86 fixedly connected to one end of the connecting rod 85. The purpose is to prevent the pressure of the pressing rod 710 from being too large to damage the circuit board.
[0032] The top of the air bag 81 is fixedly connected with a compression spring 87, one end of the compression spring 87 away from the top of the air bag 81 is fixedly connected with the bottom of the pressure transmission plate 83. The purpose is to ensure that the pressure transmission plate 83 can move according to the pressure.
[0033] The number of connecting rods 85 is two, and they are mutually symmetrical along the vertical central axis of the air bag 81. The initial state of the compression spring 87 is relaxation. The purpose is to ensure that the air bag 81 can be uniformly stressed during operation through symmetrical design, so as to maintain the stability and symmetry of the system.
[0034] In this embodiment, while placing the circuit board, the motor two 72 is started, the output shaft of the motor two 72 rotates, the output shaft of the motor two 72 drives the rotating shaft 73 to rotate, the rotating shaft 73 rotates to drive the gear one 74 to rotate, the gear one 74 and the gear two 76 are engaged, so that the gear one 74 drives the gear two 76 to rotate, the gear one 74 and the gear two 76 rotate to drive the two racks 78 to move inside the sliding groove 77, the racks 78 move through the moving rods 79 to drive the pressing rods 710 to move, thereby pressing the placed circuit board to prevent deviation. When the pressing force of the pressing rod 710 on the circuit board is too large, the pressure transmission plate 83 presses the air bag 81 through the stress plate 82 at this time, so that the air pressure in the air bag 81 increases to push the moving plate 84, the moving plate 84 moves through the connecting rod 85 to drive the locking tooth plate 86 to move, the locking tooth plate 86 moves to lock the gear one 74 and the gear two 76, so that the racks 78 stop, thereby stopping the pressing rod 710, preventing overpressure damage to the circuit board. When the pressure decreases, the pressure transmission plate 83 is reset through the elasticity of the compression spring 87, so that the locking tooth plate 86 is reset and unlocked.
[0035] According to another aspect, at least one embodiment of the present application also provides a measuring method of a circuit board depth control hole nondestructive rapid measuring device, comprising the following steps: S1, the staff starts the motor one 62 to drive the threaded rod 63 to rotate and drive the moving platform 65 to move, at the same time the cleaning brush 69 cleans the moving platform 65, to ensure that the circuit board is placed and positioned stably in the measuring area, and the measuring data is displayed on the data display screen 5 for recording and analysis. S2, start motor two 72, drive gear one 74 and gear two 76 rotate, drive rack 78 move, through the moving rod 79 drive press bar 710 press line board, prevent deviation; S3, press bar 710 too much pressure, air bag 81 boost push moving plate 84, locking gear one 74 and gear two 76 stop rack 78 movement, prevent overpressure damage line board, pressure reduction, compression spring 87 reset to remove the lock.
[0036] The above is only the preferred embodiment of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A circuit board deep hole non-destructive rapid measurement device, characterized in that: The measuring platform (1) comprises a measuring table (1), wherein the bottom of the measuring table (1) is fixedly connected to a support column (2), the top of the measuring table (1) is fixedly connected to a mobile frame (3), a non-destructive measurement component (4) is arranged inside the mobile frame (3), a data display screen (5) is arranged on the side of the mobile frame (3), and a positioning mechanism (6) is arranged on the top of the measuring table (1); The positioning mechanism (6) includes a mounting groove (61) and a motor (62). The mounting groove (61) is provided on the top of the measuring platform (1). The inner wall of the mounting groove (61) is fixedly connected to the side of the motor (62). The output shaft of the motor (62) is fixedly connected to a threaded rod (63). The circumferential surface of the threaded rod (63) is threadedly connected to a threaded sleeve (64). The top of the threaded sleeve (64) is fixedly connected to a moving platform (65).
2. A circuit board controlled deep hole non-destructive rapid measurement device according to claim 1, characterized in that: A hydraulic cylinder (66) is fixedly connected to the interior of the mounting groove (61), one end of the hydraulic cylinder (66) is slidably connected to a force-bearing rod (67) via a piston, the force-bearing rod (67) is connected to a hydraulic rod (68) via the hydraulic cylinder (66), and one end of the hydraulic rod (68) away from the side of the hydraulic cylinder (66) is fixedly connected to a cleaning brush (69).
3. A circuit board deep hole non-destructive rapid measurement device according to claim 2, characterized in that: A return spring (610) is fixedly connected to the side of the hydraulic cylinder (66), and one end of the return spring (610) away from the side of the hydraulic cylinder (66) is fixedly connected to the circumferential surface of the force-bearing rod (67).
4. A circuit board controlled deep hole non-destructive rapid measurement device according to claim 3, characterized in that: One end of the force-bearing rod (67) is located on the displacement track of the movable platform (65), and the bottom of the cleaning brush (69) is flush with the top of the movable platform (65).
5. The circuit board deep hole non-destructive rapid measurement device according to claim 4, characterized in that: A pressing mechanism (7) is provided on the top of the mobile platform (65), and the pressing mechanism (7) includes a power bin (71) and a second motor (72). The power bin (71) is opened inside the mobile platform (65), and the inner wall of the power bin (71) is fixedly connected to the side of the second motor (72). The output shaft of the second motor (72) is fixedly connected to a rotating shaft (73), and the circumferential surface of the rotating shaft (73) is fixedly penetrated by a gear one (74). The inner wall of the power bin (71) is rotatably connected to a support shaft (75), and the circumferential surface of the support shaft (75) is fixedly penetrated by a gear two (76). A slide groove (77) is opened inside the power bin (71), and a rack (78) is fixedly connected inside the slide groove (77). The top of the rack (78) is fixedly connected to a moving rod (79), and the end of the moving rod (79) away from the top of the rack (78) is fixedly connected to a pressing rod (710).
6. A circuit board deep hole non-destructive rapid measurement device according to claim 5, characterized in that: The gear 1 (74) and the gear 2 (76) are meshed with each other, and the number of the rack (78), the moving rod (79) and the pressing rod (710) is set to two, and they are symmetrical to each other along the vertical center axis of the moving platform (65), and the side surfaces of the two racks (78) are respectively meshed with the circumferential surfaces of the gear 1 (74) and the gear 2 (76).
7. A circuit board controlled deep hole non-destructive rapid measurement device according to claim 6, characterized in that: An anti-overpressure mechanism (8) is provided inside the power bin (71), and the anti-overpressure mechanism (8) includes an airbag (81), the airbag (81) is fixedly connected to the inside of the power bin (71), the top of the airbag (81) is slidably connected to a force plate (82), the top of the force plate (82) is fixedly connected to a pressure transmission plate (83), the side of the airbag (81) is slidably connected to a movable plate (84), the side of the movable plate (84) is fixedly connected to a connecting rod (85), and one end of the connecting rod (85) is fixedly connected to a locking tooth plate (86).
8. The circuit board deep hole non-destructive rapid measurement device according to claim 7, characterized in that: The top of the airbag (81) is fixedly connected to a compression spring (87), and one end of the compression spring (87) away from the top of the airbag (81) is fixedly connected to the bottom of the pressure transmission plate (83).
9. The circuit board deep hole non-destructive rapid measurement device according to claim 8, characterized in that: There are two connecting rods (85) and they are symmetrical to each other along the vertical center axis of the airbag (81). The initial state of the compression spring (87) is a relaxed state.
10. The measurement method of the circuit board deep hole non-destructive rapid measurement device according to claim 9, characterized in that: The following steps are involved: S1. The staff starts the motor 1 (62), drives the threaded rod (63) to rotate, drives the mobile platform (65) to move, and at the same time the cleaning brush (69) cleans the mobile platform (65), ensuring that the circuit board is placed stably and positioned in the measurement area. The measurement data is displayed on the data display screen (5) for easy recording and analysis; S2, start motor 2 (72), drive gear 1 (74) and gear 2 (76) to rotate, drive rack (78) to move, and drive pressing rod (710) to press circuit board through moving rod (79) to prevent deviation; S3. When the pressure on the pressing rod (710) is too high, the airbag (81) increases the pressure and pushes the moving plate (84), locking the gear 1 (74) and the gear 2 (76) to stop the rack (78) from moving, preventing the circuit board from being damaged by overpressure. When the pressure decreases, the compression spring (87) resets and releases the lock.