A calibration and positioning device for the production and processing of a pressure sensor circuit board

Abstract

The present invention discloses a calibration and positioning device for the production and processing of a pressure sensor circuit board, which relates to the technical field of circuit board production and processing. The present invention includes an operation box and an operation bracket. The bottom end of the inner surface of the operation box is fixedly connected with the operation bracket, and an electric slide rail is arranged at a position near the top of the inner surface of the operation box. A sliding seat is arranged inside the electric slide rail, and a first electric push rod is installed on the outer surface of the lower end of the sliding seat; By collecting and analyzing the exposed area of the final marking board, the exposed area of the first limiting board, and the exposed area of the second limiting board, the present invention can accurately judge the offset situation of the circuit board. The calibration module automatically controls the operation of the calibration mechanism according to the calibration situation of the circuit board to quickly adjust the position of the circuit board, so that the circuit board is located at the center position of the operation bracket, avoiding the offset of the punching position and improving the processing accuracy of the circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field of circuit board production and processing, and particularly relates to a calibration and positioning device for the production and processing of pressure sensor circuit boards. Background Art

[0002] A pressure sensor is a device or apparatus that can sense a pressure signal and convert the pressure signal into an available output electrical signal according to a certain rule. Pressure sensors are now used in a variety of applications to sense pressure, including medical applications, flight control applications, industrial processing applications, combustion control applications, climate monitoring applications, water metering applications, and many other applications;

[0003] A circuit board is an important component of a pressure sensor. A circuit board is one of the important components in the electronics industry. During the production process of a pressure sensor circuit board, in order to make vias for copper plating of each layer of the circuit or make positioning holes, it is necessary to punch holes in the circuit board;

[0004] However, most traditional circuit board punching devices are that workers manually place the circuit board on the surface of the operating table and then use a limiting mechanism to fix it. When workers place the circuit board, it is easy to cause the position of the circuit board to shift. Although most limiting mechanisms can fix the circuit board, they cannot automatically calibrate and position it. Therefore, it is easy to cause the punching position to shift, affecting the processing accuracy of the circuit board and even making the circuit board a waste product. Summary of the Invention

[0005] The purpose of the present invention is to provide a calibration and positioning device for the production and processing of pressure sensor circuit boards to solve the technical defects proposed in the background art.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A calibration and positioning device for the production and processing of pressure sensor circuit boards includes an operation box and an operation bracket. The bottom end of the inner surface of the operation box is fixedly connected with an operation bracket, and an electric slide rail is arranged at a position near the top of the inner surface of the operation box. A slide seat is arranged inside the electric slide rail, and an electric push rod I is installed on the lower outer surface of the slide seat. One end of the electric push rod I away from the slide seat is provided with a connecting plate, and a motor I is arranged on the lower outer surface of the connecting plate. The output end of the motor I is fixedly connected with a drill bit;

[0007] Both sides of the inner surface of the operation box are provided with sliding grooves, and the inner surface of the sliding grooves is slidably connected with sliders. One end of the inner surface of the sliding groove is provided with an electric push rod two, one end of the electric push rod two is fixedly connected with the sliding groove, and the other end is fixedly connected with the slider. One side outer surface of the slider is fixedly connected with an electric push rod three, one end of the electric push rod three is fixedly connected with the slider, and the other end is fixedly connected with a U-shaped seat. A rotating block is arranged inside the U-shaped seat. One end of the two groups of rotating blocks penetrates to the outside of the U-shaped seat and is respectively fixedly connected with a limiting plate one and a limiting plate two. The limiting plate one is located on the left side of the limiting plate two. A calibration mechanism is arranged between the U-shaped seat and the rotating block, and the outer surface of the U-shaped seat near the limiting plate one and the limiting plate two is an arc surface. One side of the operation box is provided with a control panel.

[0008] Further, a rotating column is rotatably connected inside the U-shaped seat, and the rotating column penetrates through the rotating block and is fixedly connected with it. The bottom end of the rotating column is rotatably connected with the U-shaped seat, and the top end of the rotating column does not contact the U-shaped seat. A torsion spring is arranged at a position on the outer surface of the rotating column below the rotating block, one end of the torsion spring is fixedly connected with the rotating block, and the other end is fixedly connected with the U-shaped seat.

[0009] Further, a camera is arranged at a position near one side of the top end of the inner surface of the U-shaped seat, and a marking plate is arranged at a position corresponding to the camera at the bottom end of the inner surface of the U-shaped seat. When the U-shaped seat is perpendicular to the corresponding limiting plate one and limiting plate two, the marking plate is completely blocked by the rotating block.

[0010] Further, the calibration mechanism includes a movable hole, a connecting column, a mounting groove and a rectangular groove; a movable hole is opened at a position corresponding to the rotating column on the upper outer surface of the U-shaped seat, and a connecting column is rotatably connected inside the movable hole. An mounting groove is opened at the top end of the rotating column, and a rectangular groove is opened at the bottom end of the inner surface of the mounting groove. The bottom end of the connecting column penetrates into the inside of the mounting groove and is fixedly connected with a rectangular block, and the rectangular block is matched with the rectangular groove. The top end of the connecting column penetrates above the movable hole and is fixedly connected with a connecting block, and the cross section of the connecting block is circular.

[0011] Further, a gear is fixedly connected to the outer surface of the connecting block, and an annular groove is opened on the lower outer surface of the connecting block. An movable block is movably connected inside the annular groove, and the cross section of the movable block is T-shaped. The lower outer surface of the movable block is provided with an electric telescopic rod, one end of the electric telescopic rod is fixedly connected with the movable block, and the other end is fixedly connected with the U-shaped seat. A motor two is arranged at a position on the upper outer surface of the U-shaped seat on one side of the connecting column, and a tooth column is fixedly connected to the output end of the motor two. The tooth column is meshed with the gear.

[0012] Further, the lower outer surfaces of the first limiting plate and the second limiting plate are embedded with and roll-connected with ball bearings, and the outer surfaces of the ball bearings are in contact with the upper outer surface of the operation bracket. Ultrasonic sensors are arranged on the outer surfaces of the first limiting plate and the second limiting plate close to each other, and the two groups of ultrasonic sensors are distributed diagonally.

[0013] Further, the control panel includes a data acquisition module, a data analysis module, a calibration module and an alarm module;

[0014] The data acquisition module is used to collect the initial arc length of the area of the marking plate not blocked by the rotating block, the final arc length of the area of the marking plate not blocked by the rotating block, the length value of the area of the first limiting plate in contact with the circuit board not blocked, and the length value of the area of the second limiting plate in contact with the circuit board not blocked, and send them to the data analysis module;

[0015] The data analysis module is used to receive the initial arc length of the area of the marking plate not blocked by the rotating block, the final arc length of the area of the marking plate not blocked by the rotating block, the length value of the area of the first limiting plate in contact with the circuit board not blocked, and the length value of the area of the second limiting plate in contact with the circuit board not blocked, and perform analysis processing operation one on the initial arc length of the area of the marking plate not blocked by the rotating block and the final arc length of the area of the marking plate not blocked by the rotating block, and perform analysis processing operation two on the length value of the area of the first limiting plate in contact with the circuit board not blocked and the length value of the area of the second limiting plate in contact with the circuit board not blocked, and generate corresponding calibration signals and alarm signals according to the analysis processing operation results, and send the generated calibration signals to the calibration module and the alarm module;

[0016] The calibration module is used to receive the calibration signal and make corresponding calibration processing according to the received calibration signal; the alarm module is used to receive the alarm signal and issue an alarm to prompt the staff to repair the equipment.

[0017] Further, the analysis processing operation one includes the following steps:

[0018] Step 1: Receive the initial arc length of the area of the marking plate not blocked by the rotating block and the final arc length of the area of the marking plate not blocked by the rotating block, and mark the initial arc length of the area of the marking plate not blocked by the rotating block as Bc, obtain the initial standard exposed arc length Cbc, generate an alarm signal when Bc is greater than Cbc, and perform offset analysis when Bc ≤ Cbc;

[0019] Step 2: The offset analysis process is as follows: Mark the final arc length of the area of the marking plate not blocked by the rotating block as Bz; According to the formula An offset angle a is obtained, where k is a preset correction factor and r is the distance from the central axis of the rotating column to the arc surface of the U-shaped seat; when the unobstructed area of the final marker plate is in front of the rotating block, a positive offset a-degree signal is generated, and when the unobstructed area of the final marker plate is behind the rotating block, a negative offset a-degree signal is generated. When Bz = 0, no processing is performed;

[0020] The second analysis and processing operation includes the following steps:

[0021] Step 1: Receive the length value of the unobstructed area on the side where the first limit plate is attached to the circuit board and the length value of the unobstructed area on the side where the second limit plate is attached to the circuit board. Mark the length value of the unobstructed area on the side where the first limit plate is attached to the circuit board as Xy, and mark the length value of the unobstructed area on the side where the second limit plate is attached to the circuit board as Xe;

[0022] Step 2: According to the formula The offset distance is obtained. When Cx = 0, no processing is performed. When Cx > 0, a rear-side offset Cx signal is generated. When Cx < 0, a front-side offset signal is generated.

[0023] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present invention are:

[0024] 1. In the present invention, by collecting and analyzing the final arc length of the unobstructed area of the marker plate, the length value of the unobstructed area on the side where the first limit plate is attached to the circuit board, and the length value of the unobstructed area on the side where the second limit plate is attached to the circuit board, the offset situation of the circuit board can be accurately judged. The calibration module automatically controls the operation of the calibration mechanism according to the calibration situation of the circuit board to quickly adjust the position of the circuit board, so that the circuit board is located at the center position of the operation bracket, avoiding the offset of the punching position and improving the processing accuracy of the circuit board;

[0025] 2. In the present invention, after the circuit board is fixed by the first limit plate and the second limit plate, when the data analysis module analyzes that the circuit board is tilted, the calibration module controls the motor two of the calibration mechanism to drive the tooth column to rotate to the corresponding angle. Therefore, the rotating block drives the corresponding first limit plate and second limit plate to rotate to a state perpendicular to the U-shaped seat, so that the circuit board moves to the correct position. When the calibration module receives a positive offset a-degree signal, the output shafts of the two motors two rotate in the opposite direction to the above rotation direction, so as to straighten the circuit board and make the four sides of the circuit board parallel to the four sides of the operation bracket respectively, thus solving the problem of circuit board tilt;

[0026] 3. In the present invention, based on clamping and limiting the circuit board by the first limiting plate and the second limiting plate, when the data analysis module analyzes that the circuit board is offset front and back, the calibration module controls the electric push rod two to push and pull the slider, thereby solving the problem of the front and back offset of the circuit board. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a combined view of the calibration mechanism and the operation box of the present invention;

[0029] Figure 3 It is a combined view of the U-shaped seat and the rotating column of the present invention;

[0030] Figure 4 For the present invention Figure 3 Enlarged view of area A;

[0031] Figure 5 It is a combined view of the connecting block and the movable block of the present invention;

[0032] Figure 6 It is a combined view of the first limiting plate and the second limiting plate of the present invention;

[0033] Figure 7 It is a principle block diagram of the control panel of the present invention.

[0034] Reference numerals: 1. Operation box; 2. Operation bracket; 3. Electric slide rail; 4. Slide seat; 5. Connecting plate; 6. Motor one; 7. Calibration mechanism; 701. Movable hole; 702. Connecting column; 703. Installation groove; 704. Rectangular groove; 705. Connecting block; 706. Rectangular block; 707. Gear; 708. Annular groove; 709. Movable block; 710. Tooth column; 711. Electric telescopic rod; 712. Motor two; 8. Drill bit; 9. Chute; 10. Slider; 11. Electric push rod two; 12. Electric push rod three; 13. U-shaped seat; 14. Rotating block; 15. First limiting plate; 16. Second limiting plate; 17. Rotating column; 18. Torsion spring; 19. Camera; 20. Marking plate; 21. Ball; 22. Electric push rod one. Detailed Embodiments

[0035] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0036] Embodiment 1:

[0037] As Figure 1 , Figure 2 and Figure 7 shown, a calibration and positioning device for the production and processing of a pressure sensor circuit board proposed by the present invention includes an operation box 1 and an operation bracket 2. A bottom end of an inner surface of the operation box 1 is fixedly connected to the operation bracket 2, and an electric slide rail 3 is arranged at a position near a top end of the inner surface of the operation box 1. A sliding seat 4 is arranged inside the electric slide rail 3, and a first electric push rod 22 is installed on an outer surface of a lower end of the sliding seat 4. One end of the first electric push rod 22 away from the sliding seat 4 is provided with a connecting plate 5, and a first motor 6 is arranged on an outer surface of a lower end of the connecting plate 5. An output end of the first motor 6 is fixedly connected to a drill bit 8. While the first electric push rod 22 pushes the drill bit 8 to move downward, the first motor 6 drives the drill bit 8 to rotate to drill holes in the circuit board;

[0038] Chutes 9 are formed on both sides of an inner surface of the operation box 1, and sliding blocks 10 are slidably connected to inner surfaces of the chutes 9. A second electric push rod 11 is arranged at one end of an inner surface of the chute 9. One end of the second electric push rod 11 is fixedly connected to the chute 9, and the other end is fixedly connected to the sliding block 10. The second electric push rod 11 pushes the sliding block 10 to move. A third electric push rod 12 is fixedly connected to an outer surface of one side of the sliding block 10. One end of the third electric push rod 12 is fixedly connected to the sliding block 10, and the other end is fixedly connected to a U-shaped seat 13. A rotating block 14 is arranged inside the U-shaped seat 13. One ends of two groups of rotating blocks 14 penetrate to an outside of the U-shaped seat 13 and are respectively fixedly connected to a first limiting plate 15 and a second limiting plate 16. The first limiting plate 15 is located on a left side of the second limiting plate 16. After the circuit board is fixed by the first limiting plate 15 and the second limiting plate 16, the sliding block 10 drives the first limiting plate 15 and the second limiting plate 16 to move. Two groups of third electric push rods 12 simultaneously and at the same speed push the U-shaped seat 13 and the first limiting plate 15 and the second limiting plate 16 to move in a direction close to the circuit board, so as to adjust a front-back position of the circuit board. A calibration mechanism 7 is arranged between the U-shaped seat 13 and the rotating block 14, and an outer surface of the U-shaped seat 13 near one sides of the first limiting plate 15 and the second limiting plate 16 is an arc surface.

[0039] Rolling balls 21 are embedded and rotatably connected to outer surfaces of lower ends of the first limiting plate 15 and the second limiting plate 16, and outer surfaces of the rolling balls 21 are attached to an outer surface of an upper end of the operation bracket 2, so as to reduce frictional losses during the movement of the first limiting plate 15 and the second limiting plate 16. Ultrasonic sensors are arranged on outer surfaces of the first limiting plate 15 and the second limiting plate 16 near sides close to each other, and two groups of ultrasonic sensors are distributed in a diagonal manner.

[0040] The control panel includes a data acquisition module, a data analysis module, a calibration module, and an alarm module;

[0041] The data acquisition module collects the initial arc length of the area of the marking plate 20 that is not blocked by the rotating block 14 before the first limiting plate 15 and the second limiting plate 16 come into contact with the circuit board. After the first limiting plate 15 and the second limiting plate 16 clamp and limit the circuit board, it collects the final arc length of the area of the marking plate 20 that is not blocked by the rotating block 14, the length value of the area on the side of the first limiting plate 15 that is in contact with the circuit board and not blocked, and the length value of the area on the side of the second limiting plate 16 that is in contact with the circuit board and not blocked, and sends them to the data analysis module;

[0042] The data analysis module is used to receive the length value of the area on the side of the first limiting plate 15 that is in contact with the circuit board and not blocked and the length value of the area on the side of the second limiting plate 16 that is in contact with the circuit board and not blocked, and perform analysis and processing operation two on the length value of the area on the side of the first limiting plate 15 that is in contact with the circuit board and not blocked and the length value of the area on the side of the second limiting plate 16 that is in contact with the circuit board and not blocked.

[0043] Analysis and processing operation two includes the following steps:

[0044] Step one: Receive the length value of the area on the side of the first limiting plate 15 that is in contact with the circuit board and not blocked and the length value of the area on the side of the second limiting plate 16 that is in contact with the circuit board and not blocked, and mark the length value of the area on the side of the first limiting plate 15 that is in contact with the circuit board and not blocked as Xy, and mark the length value of the area on the side of the second limiting plate 16 that is in contact with the circuit board and not blocked as Xe;

[0045] Step two: According to the formula Obtain the offset distance. When Cx = 0, no processing is performed. When Cx > 0, generate a rear side offset Cx signal. When Cx < 0, generate a front side offset signal.

[0046] When the exposed length values at both ends of the first limiting plate 15 and the second limiting plate 16 are equal, it means that the circuit board is placed in the middle position of the operation bracket 2. When the calibration module receives the rear side offset Cx signal, it means that the placement position of the circuit board is close to the front of the operation bracket 2. At this time, control the second electric push rod 11 to push the slider 10 forward by a distance of Cx. At this time, Xy = Xe; According to the above steps, when the calibration module receives the front side offset Cx signal, control the second electric push rod 11 to pull the slider 10 backward by a distance of Cx.

[0047] Embodiment two:

[0048] As Figures 3 - 7As shown, the difference between this embodiment and Embodiment 1 is that a rotating column 17 is rotatably connected inside the U-shaped seat 13, and the rotating column 17 passes through the rotating block 14 and is fixedly connected thereto. The bottom end of the rotating column 17 is rotatably connected to the U-shaped seat 13, and the top end of the rotating column 17 does not contact the U-shaped seat 13. A torsion spring 18 is arranged at a position on the outer surface of the rotating column 17 below the rotating block 14, and one end of the torsion spring 18 is fixedly connected to the rotating block 14, and the other end is fixedly connected to the U-shaped seat 13.

[0049] A camera 19 is arranged at a position near one side of the top end of the inner surface of the U-shaped seat 13, and a marking plate 20 is arranged at a position corresponding to the camera 19 at the bottom end of the inner surface of the U-shaped seat 13. When the U-shaped seat 13 is perpendicular to the corresponding limiting plate 15 and limiting plate 2, the marking plate 20 is completely blocked by the rotating block 14. In the process of the limiting plate 15 and the limiting plate 2 approaching the circuit board, when the circuit board is tilted, two points distributed diagonally on the circuit board first contact the limiting plate 15 and the limiting plate 2.

[0050] The limiting plate 15 and the limiting plate continuously push the circuit board, and the limiting plate 15 and the limiting plate 2 adaptively drive the rotating column 17 to rotate until the outer surfaces of the limiting plate 15 and the limiting plate 2 are all attached to the outer surface of the circuit board. Under the action of the torsion spring 18, the limiting plate 15 and the limiting plate 2 are finally parallel to each other.

[0051] Embodiment Three:

[0052] As Figures 2 - 7 shown, the difference between this embodiment and Embodiment 1 and Embodiment 2 is that the control panel includes a data acquisition module, a data analysis module, a calibration module, and an alarm module;

[0053] The data acquisition module is used to collect the initial arc length of the area of the marking plate 20 not blocked by the rotating block 14, the final arc length of the area of the marking plate 20 not blocked by the rotating block 14, the length value of the area of the side of the limiting plate 15 attached to the circuit board not blocked, and the length value of the area of the side of the limiting plate 2 attached to the circuit board not blocked, and send them to the data analysis module;

[0054] The data analysis module is used to receive the initial arc length of the area of the marking plate 20 not blocked by the rotating block 14, the final arc length of the area of the marking plate 20 not blocked by the rotating block 14, the length value of the area of the side of the limiting plate 15 attached to the circuit board not blocked, and the length value of the area of the side of the limiting plate 2 attached to the circuit board not blocked, and perform analysis and processing operation one on the initial arc length of the area of the marking plate 20 not blocked by the rotating block 14 and the final arc length of the area of the marking plate 20 not blocked by the rotating block 14;

[0055] Analysis and processing operation one includes the following steps:

[0056] Step 1: Receive the initial arc length of the area of the marking plate 20 not blocked by the rotating block 14 and the final arc length of the area of the marking plate 20 not blocked by the rotating block 14, and mark the initial arc length of the area of the marking plate 20 not blocked by the rotating block 14 as Bc. Obtain the initial standard exposed arc length Cbc. When Bc is greater than Cbc, generate an alarm signal. After receiving the alarm signal, the alarm module emits an alarm sound to remind the staff to repair the two groups of torsion springs 18. When Bc ≤ Cbc, perform offset analysis;

[0057] Step 2: The offset analysis process is as follows: Mark the final arc length of the area of the marking plate 20 not blocked by the rotating block 14 as Bz; According to the formula Obtain the offset angle a, where k is a preset correction factor, and r is the distance from the central axis of the rotating column 17 to the arc surface of the U-shaped seat 13. When the final area of the marking plate 20 not blocked by the rotating block 14 is located in front of the rotating block 14, generate a positive offset a-degree signal. When the final area of the marking plate 20 not blocked by the rotating block 14 is located behind the rotating block 14, generate a negative offset a-degree signal. When Bz = 0, do not make any processing.

[0058] The calibration mechanism 7 includes a movable hole 701, a connecting column 702, a mounting groove 703, and a rectangular groove 704; A movable hole 701 is opened at a position corresponding to the rotating column 17 on the upper outer surface of the U-shaped seat 13, and a connecting column 702 is rotatably connected inside the movable hole 701. An installation groove 703 is opened at the top end of the rotating column 17, and a rectangular groove 704 is opened at the bottom end of the inner surface of the installation groove 703. The bottom end of the connecting column 702 penetrates into the installation groove 703 and is fixedly connected with a rectangular block 706, and the rectangular block 706 fits with the rectangular groove 704. The top end of the connecting column 702 penetrates above the movable hole 701 and is fixedly connected with a connecting block 705, and the cross-section of the connecting block 705 is circular.

[0059] A gear 707 is fixedly connected to the outer surface of the connecting block 705, and an annular groove 708 is opened on the lower outer surface of the connecting block 705. An active block 709 is movably connected inside the annular groove 708, and the cross-section of the active block 709 is T-shaped. The lower outer surface of the active block 709 is provided with an electric telescopic rod 711, and one end of the electric telescopic rod 711 is fixedly connected with the active block 709, and the other end is fixedly connected with the U-shaped seat 13. When the outer surfaces of the first limiting plate 15 and the second limiting plate 16 are all attached to the outer surface of the circuit board and are parallel to each other, control the electric telescopic rod 711 to pull the rotating block 14 and the connecting block 705 downward, and the gear 707 moves downward along the tooth column 710. A motor two 712 is arranged at a position on the upper outer surface of the U-shaped seat 13 on one side of the connecting column 702, and the output end of the motor two 712 is fixedly connected with a tooth column 710, and the tooth column 710 meshes with the gear 707;

[0060] When the calibration module receives a positive offset signal of a degree, the calibration module controls the motor 2 712 on the left to drive the corresponding gear column 710 to rotate a degree clockwise, so the gear 707 drives the connecting block 705 and the connecting column 702 to rotate counterclockwise, so the rotating column 17 on the left drives the corresponding rotating block 14 to rotate in the same direction as the connecting column 702, the motor 2 712 on the right drives the corresponding gear column 710 to rotate counterclockwise, the connecting block 705 on the right drives the corresponding connecting column 702 to rotate clockwise, the rotating column 17 on the right drives the corresponding rotating block 14 to rotate in the same direction as the corresponding connecting column 702, and the two groups of rotating blocks 14 drive the corresponding limit plates 1 15 and limit plates 2 16 to rotate to a state perpendicular to the U-shaped seat 13. Similarly, when the calibration module receives a positive offset signal of a degree, the output shafts of the two groups of motors 2 712 are opposite to the above-mentioned rotation direction, so that the circuit board is straightened so that the four sides of the circuit board are parallel to the four sides of the operating bracket 2.

[0061] The working principle and process of the present invention are as follows:

[0062] Step 1: The staff places the circuit board on the surface of the operating bracket 2 near the middle, and then turns on the electric push rod 3 12. The two sets of electric push rods 3 12 simultaneously push the U-shaped seat 13 and the limit plate 1 15 and the limit plate 2 16 to move towards the circuit board at the same speed. In the process of the limit plate 1 15 and the limit plate 2 16 approaching the circuit board, when the circuit board is tilted, two points of the circuit board distributed diagonally first contact with the limit plate 1 15 and the limit plate 2 16;

[0063] Step 2, the limit plate 1 15 and the limit plate 2 continue to push the circuit board, and the limit plate 1 15 and the limit plate 2 16 adaptively drive the rotating column 17 to rotate until the outer surfaces of the limit plate 15 and the limit plate 2 16 are all in contact with the outer surface of the circuit board. At this time, the limit plate 15 and the limit plate 2 16 are parallel. At this time, the electric telescopic rod 711 is controlled to pull the rotating block 14 and the connecting block 705 downward, and the gear 707 moves downward along the gear column 710. Then the camera 19 collects the image information of the marking plate 20, and the control panel calculates the final arc length of the area of the marking plate 20 that is not blocked by the rotating block 14 according to the image information of the marking plate 20;

[0064] Step 3: When the calibration module receives a signal of a positive offset of a degrees, the calibration module controls the motor two 712 on the left to drive the corresponding tooth column 710 to rotate clockwise by a degrees. Therefore, the gear 707 drives the connecting block 705 and the connecting column 702 to rotate counterclockwise. Therefore, the rotating column 17 on the left drives the corresponding rotating block 14 to rotate in the same direction as the connecting column 702. The motor two 712 on the right drives the corresponding tooth column 710 to rotate counterclockwise. The connecting block 705 on the right drives the corresponding connecting column 702 to rotate clockwise. The rotating column 17 on the right drives the corresponding rotating block 14 to rotate in the same direction as the corresponding connecting column 702. The two groups of rotating blocks 14 drive the corresponding limiting plates one 15 and limiting plates two 16 to rotate to a state perpendicular to the U-shaped seat 13, so as to move the circuit board to the correct position. When the calibration module receives a signal of a positive offset of a degrees, the output shafts of the two groups of motor two 712 rotate in the opposite direction to the above rotation direction, so as to straighten the circuit board and make the four sides of the circuit board parallel to the four sides of the operation bracket 2 respectively;

[0065] Step 4: Then, use the ultrasonic sensor to collect the exposed lengths at one end of the limiting plate one 15 and the limiting plate two 16. After adjusting the inclination state of the circuit board, automatically adjust the states of the two groups of electric push rods three 12 to make the telescopic amounts of the two groups of electric push rods three 12 the same. During this process, the limiting plate one 15 and the limiting plate two 16 are not separated from the circuit board. Therefore, when the exposed length values at both ends of the limiting plate one 15 and the limiting plate two 16 are equal, it means that the circuit board is placed in the middle position of the operation bracket 2. When the calibration module receives a signal of a rear offset of Cx, it means that the placement position of the circuit board is close to the front of the operation bracket 2. At this time, control the electric push rod two 11 to push the slider 10 forward by a distance of Cx. At this time, Xy = Xe; According to the above steps, when the calibration module receives a signal of a front offset of Cx, control the electric push rod two 11 to pull the slider 10 backward by a distance of Cx, so as to solve the problem of the front and rear offset of the circuit board;

[0066] Step 5: After adjusting the position of the circuit board, control the slide seat 4, the motor one 6 and the electric push rod one 22 to operate to punch holes in the circuit board.

[0067] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A calibration and positioning device for the production and processing of a pressure sensor circuit board, comprising an operation box (1) and an operation bracket (2), characterized in that, At the bottom end of the inner surface of the operation box (1), an operation bracket (2) is fixedly connected, and an electric slide rail (3) is arranged at a position near the top end of the inner surface of the operation box (1). A slide seat (4) is arranged inside the electric slide rail (3), and an electric push rod one (22) is installed on the outer surface of the lower end of the slide seat (4). One end of the electric push rod one (22) away from the slide seat (4) is provided with a connecting plate (5), and a motor one (6) is arranged on the outer surface of the lower end of the connecting plate (5). The output end of the motor one (6) is fixedly connected with a drill bit (8). On both sides of the inner surface of the operation box (1), sliding grooves (9) are opened, and sliders (10) are slidably connected to the inner surfaces of the sliding grooves (9). An electric push rod two (11) is arranged at one end of the inner surface of the sliding groove (9), one end of the electric push rod two (11) is fixedly connected with the sliding groove (9), and the other end is fixedly connected with the slider (10). An electric push rod three (12) is fixedly connected to the outer surface of one side of the slider (10), one end of the electric push rod three (12) is fixedly connected with the slider (10), and the other end is fixedly connected with a U-shaped seat (13). A rotating block (14) is arranged inside the U-shaped seat (13). One ends of the two groups of rotating blocks (14) penetrate to the outside of the U-shaped seat (13) and are respectively fixedly connected with a limiting plate one (15) and a limiting plate two (16). The limiting plate one (15) is located on the left side of the limiting plate two (16). A calibration mechanism (7) is arranged between the U-shaped seat (13) and the rotating block (14), and the outer surface of the U-shaped seat (13) is an arc surface near one side of the limiting plate one (15) and the limiting plate two (16). A control panel is arranged on one side of the operation box (1). A rotating column (17) is rotatably connected inside the U-shaped seat (13), and the rotating column (17) penetrates through the rotating block (14) and is fixedly connected with it. The bottom end of the rotating column (17) is rotatably connected with the U-shaped seat (13), and the top end of the rotating column (17) does not contact the U-shaped seat (13). A torsion spring (18) is arranged at a position on the outer surface of the rotating column (17) below the rotating block (14). One end of the torsion spring (18) is fixedly connected with the rotating block (14), and the other end is fixedly connected with the U-shaped seat (13). The control panel includes a data acquisition module, a data analysis module, a calibration module, and an alarm module. The data acquisition module is used to acquire the initial arc length of the area of the marking plate (20) not blocked by the rotating block (14), the final arc length of the area of the marking plate (20) not blocked by the rotating block (14), the length value of the area of the side of the limiting plate one (15) in contact with the circuit board that is not blocked, and the length value of the area of the side of the limiting plate two (16) in contact with the circuit board that is not blocked, and send them to the data analysis module. The data analysis module is used to receive the initial arc length of the area of the marking plate (20) not blocked by the rotating block (14), the final arc length of the area of the marking plate (20) not blocked by the rotating block (14), the length value of the unblocked area on the side of the first limiting plate (15) in contact with the circuit board, and the length value of the unblocked area on the side of the second limiting plate (16) in contact with the circuit board, and perform analysis and processing operation one on the initial arc length of the area of the marking plate (20) not blocked by the rotating block (14) and the final arc length of the area of the marking plate (20) not blocked by the rotating block (14), perform analysis and processing operation two on the length value of the unblocked area on the side of the first limiting plate (15) in contact with the circuit board and the length value of the unblocked area on the side of the second limiting plate (16) in contact with the circuit board, generate corresponding calibration signals and alarm signals according to the results of the analysis and processing operations, and send the generated calibration signals to the calibration module and the alarm module; The calibration module is used to receive the calibration signal and perform corresponding calibration processing according to the received calibration signal; The alarm module is used to receive the alarm signal and issue an alarm to prompt the staff to repair the equipment.

2. The calibration and positioning device for the production and processing of a pressure sensor circuit board according to claim 1, wherein, A camera (19) is arranged at a position near one side of the top end of the inner surface of the U-shaped seat (13), and a marking plate (20) is arranged at a position corresponding to the camera (19) at the bottom end of the inner surface of the U-shaped seat (13). When the U-shaped seat (13) is perpendicular to the corresponding first limiting plate (15) and second limiting plate (16), the marking plate (20) is completely blocked by the rotating block (14).

3. A calibration and positioning device for the production and processing of a pressure sensor circuit board according to claim 1, characterized in that, The calibration mechanism (7) includes a movable hole (701), a connecting column (702), a mounting groove (703), and a rectangular groove (704); a movable hole (701) is opened at a position corresponding to the rotating column (17) on the outer surface of the upper end of the U-shaped seat (13), and a connecting column (702) is rotatably connected inside the movable hole (701). A mounting groove (703) is opened at the top end of the rotating column (17), and a rectangular groove (704) is opened at the bottom end of the inner surface of the mounting groove (703). The bottom end of the connecting column (702) penetrates into the inside of the mounting groove (703) and is fixedly connected with a rectangular block (706), and the rectangular block (706) is fitted with the rectangular groove (704). The top end of the connecting column (702) penetrates above the movable hole (701) and is fixedly connected with a connecting block (705), and the cross section of the connecting block (705) is circular.

4. A calibration and positioning device for the production and processing of a pressure sensor circuit board according to claim 3, characterized in that, The outer surface of the connecting block (705) is fixedly connected with a gear (707), and an annular groove (708) is formed on the lower outer surface of the connecting block (705). An active block (709) is movably connected inside the annular groove (708), and the cross-section of the active block (709) is T-shaped. The lower outer surface of the active block (709) is provided with an electric telescopic rod (711). One end of the electric telescopic rod (711) is fixedly connected with the active block (709), and the other end is fixedly connected with a U-shaped seat (13). On the upper outer surface of the U-shaped seat (13) at a position on one side of the connecting column (702), a second motor (712) is provided, and a tooth column (710) is fixedly connected to the output end of the second motor (712). The tooth column (710) is engaged with the gear (707).

5. A calibration and positioning device for the production and processing of a pressure sensor circuit board according to claim 1, characterized in that, The lower outer surfaces of the first limiting plate (15) and the second limiting plate (16) are embedded and roll-connected with balls (21), and the outer surface of the balls (21) is in contact with the upper outer surface of the operation bracket (2). Ultrasonic sensors are arranged on the outer surfaces of the first limiting plate (15) and the second limiting plate (16) close to each other, and the two ultrasonic sensors are distributed diagonally.

6. A calibration and positioning device for the production and processing of a pressure sensor circuit board according to claim 1, characterized in that, The first analysis and processing operation includes the following steps: Step 1: Receive the initial arc length of the area of the marking plate (20) not blocked by the rotating block (14) and the final arc length of the area of the marking plate (20) not blocked by the rotating block (14), and mark the initial arc length of the area of the marking plate (20) not blocked by the rotating block (14) as Bc. Obtain the initial standard exposed arc length Cbc. When Bc is greater than Cbc, generate an alarm signal. When Bc ≤ Cbc, perform offset analysis; Step 2: The offset analysis process is as follows: Mark the final arc length of the area of the marking plate (20) not blocked by the rotating block (14) as Bz; obtain the offset angle a according to the formula a = k * ((180 * Bz) / (π * r)), where k is a preset correction factor and r is the distance from the central axis of the rotating column (17) to the arc surface of the U-shaped seat (13); when the final area of the marking plate (20) not blocked by the rotating block (14) is located in front of the rotating block (14), generate a positive offset a-degree signal. When the final area of the marking plate (20) not blocked by the rotating block (14) is located behind the rotating block (14), generate a negative offset a-degree signal. When Bz = 0, do not perform any processing; The second analysis and processing operation includes the following steps: Step 1: Receive the length value of the unblocked area on the side of the first limiting plate (15) in contact with the circuit board and the length value of the unblocked area on the side of the second limiting plate (16) in contact with the circuit board, and mark the length value of the unblocked area on the side of the first limiting plate (15) in contact with the circuit board as Xy, and mark the length value of the unblocked area on the side of the second limiting plate (16) in contact with the circuit board as Xe; Step 2: Obtain the offset distance according to the formula Cx = Xy - Xe. When Cx = 0, no processing is performed. When Cx > 0, generate a rear-side offset Cx signal. When Cx < 0, generate a front-side offset signal.

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