Efficient detection device and method for detecting width of high-frequency circuit board and depth of blind hole in high-frequency circuit board

Abstract

The invention discloses an efficient detection device and method for detecting the width of a high-frequency circuit board and the depth of an inner blind hole of the high-frequency circuit board, and relates to the technical field of detection of the width of the high-frequency circuit board and the depth of the inner blind hole of the high-frequency circuit board. A linear air cylinder located on the right side of the clamping assembly is further arranged on the workbench, a horizontally-arranged frame is fixedly arranged at the acting end of a piston rod of the linear air cylinder, a rotating shaft is rotationally installed in the frame and located between the front edge and the rear edge of the frame, a vertically-arranged cam is fixedly arranged on the rotating shaft, a motor is fixedly arranged on the rear end face of the frame, and an output shaft of the motor is connected with the rotating shaft. The frame is provided with a detection assembly A and a detection assembly B which are used for detecting the width of the high-frequency circuit board and detecting the depth of a blind hole in the high-frequency circuit board. The high-frequency circuit board detection device has the beneficial effects that the working intensity of workers is greatly reduced, and the detection efficiency of the high-frequency circuit board is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of detecting the width of a high-frequency circuit board and the depth of its internal blind holes, and particularly to an efficient detecting device and method for detecting the width of a high-frequency circuit board and the depth of its internal blind holes. Background Art

[0002] High-frequency circuit boards have the following characteristics: 1. High transmission efficiency: Due to the small dielectric constant and excellent material properties, the power consumption of high-frequency circuit boards is less than that of other circuit boards. 2. High working speed: The transmission speed is inversely proportional to the square root of the dielectric constant. High-frequency circuit boards use special materials to ensure the characteristic of a small dielectric constant, so that the signal transmission speed is faster and the circuit board runs relatively stably.

[0003] The structure of the high-frequency circuit board 1 produced in a certain workshop is as Figures 1 to 2 shown. The high-frequency circuit board 1 is integrally in the shape of a rectangular plate. A blind hole 2 is formed on the top surface of the high-frequency circuit board 1, and electronic components are welded in the blind hole 2. After a batch of high-frequency circuit boards 1 are produced in the workshop, the process requires detecting the width W of each high-frequency circuit board 1 and the depth H of its internal blind hole 2. If the width W of the detected high-frequency circuit board 1 is greater than the designed width or the depth H of its internal blind hole 2 is less than the designed depth, the worker determines that the detected high-frequency circuit board 1 is a defective product; if the width W of the detected high-frequency circuit board 1 is less than the designed width and the depth H of the blind hole 2 is greater than the designed depth, the worker determines that the detected high-frequency circuit board 1 is a qualified product.

[0004] The method for the workers in the workshop to specifically detect the width of the high-frequency circuit board 1 and the depth of its internal blind hole 2 is as follows: S1. The worker takes out a high-frequency circuit board 1, places it flat on the tabletop of the machine, and abuts the left end face of the high-frequency circuit board 1 against the left edge of the machine to achieve the positioning of the high-frequency circuit board 1. S2. The worker places the caliper flat on the tabletop of the machine, aligns the zero scale of the caliper with the left end face of the high-frequency circuit board 1, and then the worker observes the position pointed by the right end face of the high-frequency circuit board 1 on the caliper, and further measures the width of the high-frequency circuit board 1; if the measured width is greater than the designed width, the worker determines that the high-frequency circuit board 1 is a defective product; if the measured width is less than the designed width, the worker determines that the high-frequency circuit board 1 is a semi-qualified product. S3. The worker measures the depth of the internal blind hole 2 of the semi-qualified product with a vernier caliper. If the measured depth of the blind hole 2 is less than the designed depth, it is determined that the semi-qualified product is a defective product; if the measured depth is greater than the designed depth, it is determined that the defective product is a qualified product, thus completing the detection of the width of a high-frequency circuit board 1 and the depth of its internal blind hole 2. S4. Workers repeat the operations in steps S1 - S3 multiple times to complete the inspection of all high - frequency circuit boards 1 in the workshop. Workers send the non - conforming products to the rework process to repair the non - conforming products. At the same time, the qualified products are transported to the subsequent processing process for processing of other processes.

[0005] However, although the method used in the workshop can detect the width of the high - frequency circuit board 1 and the depth of the blind hole 2, in actual operation, workers still reflect the following technical defects: I. In step S2, workers need to manually measure the width of the high - frequency circuit board 1 with a caliper. Then in step S3, workers need to manually measure the depth of the blind hole 2 in the high - frequency circuit board 1 with a vernier caliper. That is to say, two processes are required to separately complete the measurement of the width of the high - frequency circuit board 1 and the depth of the blind hole 2 therein. This results in a long time being required to complete the inspection of one high - frequency circuit board 1, and thus a long time is required to complete the inspection of all high - frequency circuit boards 1 in the workshop, presenting the technical defect of low detection efficiency for high - frequency circuit boards 1. In addition, both of the two measurement processes are manually completed by workers, which undoubtedly increases the working intensity of the workers.

[0006] II. Only one high - frequency circuit board 1 can be positioned at a time, and correspondingly, only the width and the depth of the blind hole 2 therein of one high - frequency circuit board 1 can be measured. However, the number of high - frequency circuit boards 1 to be inspected in the workshop is as many as 300 - 320. Workers inspect the high - frequency circuit boards 1 in the workshop one by one, which undoubtedly results in a long time being required to complete the inspection of all high - frequency circuit boards 1 in the workshop, further reducing the detection efficiency of high - frequency circuit boards 1.

[0007] Therefore, there is an urgent need for a detection device and method that can greatly reduce the working intensity of workers and greatly improve the detection efficiency of high - frequency circuit boards. Summary of the Invention

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an efficient detection device and method for detecting the width of a high - frequency circuit board and the depth of the blind hole therein, which can greatly reduce the working intensity of workers and greatly improve the detection efficiency of high - frequency circuit boards.

[0009] The object of the present invention is achieved through the following technical solutions: an efficient detection device for detecting the width of a high-frequency circuit board and the depth of a blind hole therein, comprising a workbench, a clamping assembly for fixing two high-frequency circuit boards to be detected is arranged on the workbench, a linear cylinder located on the right side of the clamping assembly is also arranged on the workbench, a horizontally arranged frame is fixed on the action end of the piston rod of the linear cylinder, a rotating shaft is rotatably installed in the frame and between the front and rear edges thereof, a vertically arranged cam is fixed on the rotating shaft, a motor is fixed on the rear end surface of the frame, and the output shaft of the motor is connected to the rotating shaft; The frame is provided with a detection component A and a detection component B for detecting the width of the high-frequency circuit board and the depth of the blind hole in the high-frequency circuit board. The detection component A includes a guide seat fixedly arranged on the left end surface of the frame and a fixing plate fixedly arranged between the front and rear edges of the frame; A horizontal rod is slidably inserted into the guide seat, a mounting plate and a micro switch are fixedly mounted on the left end of the horizontal rod in sequence, a spring of the micro switch is arranged to face left, a horizontal spring is sleeved on the horizontal rod, and the left and right ends of the horizontal spring are respectively fixedly mounted on the mounting plate and the guide seat, and a roller is rotatably mounted on the right end of the horizontal rod; A bare rod column is fixed on the top surface of the fixed plate, a floating plate is sleeved on the bare rod column, a tension spring is sleeved on the bare rod column, under the elastic force of the tension spring, the floating plate abuts against the top surface of the cam, the floating plate extends to the left outside the frame, and a connecting frame is fixed on the top surface of the extended end, a vertical rod member slides through the top wall of the connecting frame, a support plate and a displacement sensor are fixed to the top end of the vertical rod member in sequence, a vertical spring is sleeved on the vertical rod member, and the upper and lower ends of the vertical spring are respectively fixed on the support plate and the connecting frame; A side push plate is fixed on the bottom surface of the floating plate, and a vertical surface and a wedge-shaped surface inclined leftward and upward are opened on the left end surface of the side push plate. The vertical surface is connected to the wedge-shaped surface, and the vertical surface is in contact with the roller.

[0010] A plurality of supporting legs supported on the ground are fixedly arranged on the bottom surface of the workbench.

[0011] A base corresponding to the linear cylinder is fixedly arranged on the table top of the workbench, and a cylinder body of the linear cylinder is fixedly arranged on the base.

[0012] The diameter of the lower end of the vertical rod is smaller than the diameter of the blind hole in the high-frequency circuit board.

[0013] The detection component A and the detection component B are symmetrically arranged about the cam.

[0014] The clamping assembly includes a column fixed on the workbench surface and a positioning seat fixed on the top of the column. Positioning stop ports penetrating through the right end face are provided on both the top and bottom surfaces of the positioning seat, and the positioning stop ports are matched with the outer contour of the high-frequency circuit board. Pressing cylinders are fixedly arranged on both the top and bottom surfaces of the positioning seat, and a pressing plate located directly above the positioning stop port is fixedly arranged at the acting end of the piston rod of the pressing cylinder located above.

[0015] The high-efficiency detection device further includes a controller, and the controller is electrically connected to the motor, the linear cylinder, and the pressing cylinder through signal lines.

[0016] An efficient detection method for detecting the width of a high-frequency circuit board and the depth of its internal blind holes includes the following steps: S1. Fix the tooling of two high-frequency circuit boards to be detected. The specific operation steps are as follows: S11. The worker takes out two high-frequency circuit boards to be detected, places the two high-frequency circuit boards into the two positioning stop ports on the base of the clamping assembly respectively, and holds the two high-frequency circuit boards by hand. Since the positioning stop ports are matched with the outer contour of the high-frequency circuit board, the positioning of the high-frequency circuit board is completed. At this time, the two high-frequency circuit boards are respectively opposite to the two pressing plates of the clamping assembly; S12. Control the piston rods of the two pressing cylinders of the clamping assembly to retract. The piston rods drive the pressing plates connected thereto to move towards the high-frequency circuit board. When the piston rods of the pressing cylinders are completely retracted, the pressing plates fix the high-frequency circuit boards in the positioning stop ports, thus completing the tooling fixation of the two high-frequency circuit boards to be detected; S2. Control the piston rod of the linear cylinder to extend leftward. The piston rod drives the frame to move leftward, and the frame drives the detection component A to move towards the high-frequency circuit board above. At the same time, the frame also drives the detection component B to move towards the high-frequency circuit board below; When the piston rod of the linear cylinder is completely extended, both the detection component A and the detection component B enter the detection station. At this time, the microswitch of the detection component A is horizontally opposite to the right end face of the high-frequency circuit board above, and the vertical rod of the detection component A is vertically opposite to the internal blind hole of the high-frequency circuit board above. At the same time, the microswitch of the detection component B is horizontally opposite to the right end face of the high-frequency circuit board below, and the vertical rod of the detection component B is vertically opposite to the internal blind hole of the high-frequency circuit board below; S3. Control the motor to start. The motor drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate synchronously. During the rotation of the cam, the floating plate of detection component A gradually moves downward along the optical rod column under the pulling force of the tension spring. At the same time, the floating plate of detection component B gradually moves upward along the optical rod column under the pulling force of the tension spring. The two floating plates drive the side push plate and the connecting frame connected to them to move synchronously. The wedge surface of the side push plate pushes the roller to move leftward, the roller drives the horizontal rod to move leftward, the horizontal rod drives the microswitch to move leftward, the microswitch stretches the horizontal spring leftward, and the connecting frame drives the vertical rod to move towards the blind hole of the high-frequency circuit board; When the cam rotates 90°, the controller controls the motor to shut down. At this time, if the controller receives the electrical signal sent by the microswitch of detection component A, it indicates that the elastic sheet of the microswitch presses against the right end face of the upper high-frequency circuit board. The microswitch then sends an electrical signal to the controller, further indicating that the width of the upper high-frequency circuit board is greater than the designed width, and the worker determines that the upper high-frequency circuit board is a defective product; If the controller receives the displacement signal sent by the displacement sensor of detection component A, it indicates that the bottom end of the vertical rod touches the bottom of the blind hole of the upper high-frequency circuit board, causing the displacement sensor to generate an upward displacement, further indicating that the depth of the blind hole of the upper high-frequency circuit board is less than the designed depth, and the worker determines that the upper high-frequency circuit board is a defective product; If the controller does not receive the electrical signal sent by the microswitch of detection component A and does not receive the displacement signal sent by the displacement sensor of detection component A, it indicates that the width of the upper high-frequency circuit board and the depth of its blind hole meet the design requirements, and the worker determines that the upper high-frequency circuit board is a qualified product; Meanwhile, if the controller receives the electrical signal sent by the microswitch of detection component B or receives the displacement signal sent by the displacement sensor of detection component B, the worker determines that the lower high-frequency circuit board is a defective product; if the controller does not receive the electrical signal sent by the microswitch of detection component B and does not receive the displacement signal sent by the displacement sensor of detection component B, the worker determines that the lower high-frequency circuit board is a qualified product, thus finally completing the simultaneous detection of the widths and the depths of the internal blind holes of the two high-frequency circuit boards; S4. Taking away the defective or qualified products. The specific operation steps are as follows: S41. Control the motor to start. The motor drives the rotating shaft to rotate, and the rotating shaft drives the cam to rotate synchronously. During the rotation of the cam, the floating plate of the detection component A gradually moves upward along the optical rod column under the action of the tensile force of the tension spring. At the same time, the floating plate of the detection component B gradually moves downward along the optical rod column under the action of the tensile force of the tension spring. After the cam rotates 90°, the microswitch is separated from the high-frequency circuit board, and at the same time, the vertical rod withdraws from the blind hole of the high-frequency circuit board. S42. Control the piston rod of the linear cylinder to retract to the right. The piston rod drives the frame to move to the right, and the frame drives the motor, the cam, the detection component A and the detection component B to move to the right synchronously, so that the detection component A and the detection component B move to the initial position. S43. The worker controls the piston rods of the two pressing cylinders of the clamping component to extend outward. The piston rods drive the pressing plates to move outward, and then the worker takes away the unqualified products or qualified products on the base. S5. The worker repeats the operations of steps S1 to S4 multiple times, and all the high-frequency circuit boards in the workshop can be completely detected. After the detection is completed, the worker sends the unqualified products to the rework process to repair the unqualified products. At the same time, the qualified products are transported to the subsequent processing process to process the qualified products in other processes.

[0017] The present invention has the following advantages: greatly reducing the working intensity of workers and greatly improving the detection efficiency of high-frequency circuit boards. Description of the Drawings

[0018] Figure 1 It is a structural schematic diagram of a high-frequency circuit board produced by a certain workshop; Figure 2 It is Figure 1 the top view of; Figure 3 It is a structural schematic diagram of the present invention; Figure 4 It is Figure 3 the main sectional schematic diagram of; Figure 5 It is a structural schematic diagram of the clamping component; Figure 6 It is Figure 5 the main sectional schematic diagram of; Figure 7 It is a connection schematic diagram of the linear cylinder, the frame, the cam, the detection component A and the detection component B; Figure 8 It is Figure 7 the rear view of; Figure 9 It is Figure 7 the main sectional schematic diagram of; Figure 10 It is a structural schematic diagram of the detection component A; Figure 11 is Figure 10 the main sectional view; Figure 12 is the axonometric view of the cam; Figure 13 is the axonometric view of the side push plate; Figure 14 is Figure 13 the main sectional view; Figure 15 is the schematic diagram for positioning the high-frequency circuit board; Figure 16 is the schematic diagram for fixing the tooling of two high-frequency circuit boards to be detected; Figure 17 is the schematic diagram for both the detection component A and the detection component B to enter the detection station; Figure 18 is Figure 17 the partial enlarged view of part C of; Figure 19 is the schematic diagram after the cam rotates 90°; Figure 20 the partial enlarged view of part D of; In the figure: 1 - high-frequency circuit board, 2 - blind hole; 3 - workbench, 4 - clamping component, 5 - linear cylinder, 6 - frame, 7 - rotating shaft, 8 - cam, 9 - motor, 10 - detection component A, 11 - detection component B, 12 - guide seat, 13 - fixing plate, 14 - horizontal rod, 15 - microswitch, 16 - elastic sheet, 17 - horizontal spring, 18 - roller; 19 - optical rod column, 20 - floating plate, 21 - tension spring, 22 - connecting frame, 23 - vertical rod, 24 - displacement sensor, 25 - vertical spring, 26 - side push plate, 27 - vertical plane, 28 - wedge surface, 29 - base; 30 - positioning seat, 31 - positioning stop, 32 - pressing cylinder, 33 - pressing plate. Detailed implementation manners

[0019] The following further describes the present invention in conjunction with the attached drawings. The protection scope of the present invention is not limited to the following: As Figures 3 to 14As shown in the figure, an efficient detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind holes includes a workbench 3. A plurality of support legs supported on the ground are fixedly arranged on the bottom surface of the workbench 3. A clamping component 4 for fixing two high-frequency circuit boards 1 to be detected by tooling is arranged on the workbench 3. A linear cylinder 5 is further arranged on the workbench 3 on the right side of the clamping component 4. A horizontally arranged frame 6 is fixedly arranged at the acting end of the piston rod of the linear cylinder 5. A rotating shaft 7 is rotatably installed in the frame 6 between its front and rear sides. A vertically arranged cam 8 is fixedly arranged on the rotating shaft 7. A motor 9 is fixedly arranged on the rear end surface of the frame 6. The output shaft of the motor 9 is connected to the rotating shaft 7. A base 29 corresponding to the linear cylinder 5 is fixedly arranged on the tabletop of the workbench 3. The cylinder body of the linear cylinder 5 is fixedly arranged on the base 29.

[0020] A detection component A10 and a detection component B11 for detecting the width of the high-frequency circuit board 1 and simultaneously detecting the depth of the internal blind hole 2 in the high-frequency circuit board 1 are arranged on the frame 6. The detection component A10 and the detection component B11 are symmetrically arranged up and down with respect to the cam 8. The detection component A10 includes a guide seat 12 fixedly arranged on the left end surface of the frame 6 and a fixing plate 13 fixedly arranged between the front and rear sides of the frame 6.

[0021] A horizontal rod 14 slidably penetrates through the guide seat 12. An installation plate and a microswitch 15 are sequentially fixedly arranged at the left end of the horizontal rod 14. The elastic piece 16 of the microswitch 15 faces left. A horizontal spring 17 is sleeved on the horizontal rod 14. The left and right ends of the horizontal spring 17 are respectively fixedly arranged on the installation plate and the guide seat 12. A roller 18 is rotatably installed at the right end of the horizontal rod 14.

[0022] A smooth rod column 19 is fixedly arranged on the top surface of the fixing plate 13. A floating plate 20 is sleeved on the smooth rod column 19. A tension spring 21 is sleeved on the smooth rod column 19. Under the elastic force of the tension spring 21, the floating plate 20 abuts against the top surface of the cam 8. The floating plate 20 extends leftward outside the frame 6, and a connecting frame 22 is fixedly arranged on the top surface of the extending end. A vertical rod 23 slidably penetrates through the top wall of the connecting frame 22. The diameter of the lower end of the vertical rod 23 is smaller than the diameter of the internal blind hole 2 in the high-frequency circuit board 1. A support plate and a displacement sensor 24 are sequentially fixedly arranged at the top end of the vertical rod 23. A vertical spring 25 is sleeved on the vertical rod 23. The upper and lower ends of the vertical spring 25 are respectively fixedly arranged on the support plate and the connecting frame 22. A side push plate 26 is fixedly arranged on the bottom surface of the floating plate 20. A vertical surface 27 and a wedge surface 28 inclined upward to the left are arranged on the left end surface of the side push plate 26. The vertical surface 27 is butted against the wedge surface 28, and the vertical surface 27 is in contact with the roller 18.

[0023] The clamping assembly 4 includes a column fixed on the tabletop of the workbench 3 and a positioning seat 30 fixed on the top of the column. Positioning stop ports 31 penetrating through the right end face are formed on both the top and bottom surfaces of the positioning seat 30. The positioning stop ports 31 are matched with the outer contour of the high-frequency circuit board 1. Pressing cylinders 32 are fixedly arranged on both the top and bottom surfaces of the positioning seat 30. A pressing plate 33 located directly above the positioning stop port 31 is fixedly arranged on the acting end of the piston rod of the pressing cylinder 32 located above.

[0024] The high-efficiency detection device further includes a controller. The controller is electrically connected to the motor 9, the linear cylinder 5, and the pressing cylinder 32 through signal lines. Workers can control the extension or retraction of the piston rods of the linear cylinder 5 and the pressing cylinder 32 through the controller. At the same time, they can also control the start or stop of the motor 9, thus facilitating the operation of workers and featuring a high degree of automation.

[0025] An efficient detection method for detecting the width and the depth of internal blind holes of a high-frequency circuit board includes the following steps: S1. Fix the tooling of two high-frequency circuit boards 1 to be detected. The specific operation steps are as follows: S11. Workers take out two high-frequency circuit boards 1 with the high-frequency circuit boards 1 to be detected as shown. The two high-frequency circuit boards 1 are respectively placed into the two positioning stop ports 31 of the base 29 of the clamping assembly 4, and the two high-frequency circuit boards 1 are held by hand. Since the positioning stop ports 31 are matched with the outer contour of the high-frequency circuit board 1, the positioning of the high-frequency circuit board 1 is completed. As shown, at this time, the two high-frequency circuit boards 1 are respectively opposite to the two pressing plates 33 of the clamping assembly 4. Figures 1 to 2 shown, the two high-frequency circuit boards 1 are respectively placed into the two positioning stop ports 31 of the base 29 of the clamping assembly 4, and the two high-frequency circuit boards 1 are held by hand. Since the positioning stop ports 31 are matched with the outer contour of the high-frequency circuit board 1, the positioning of the high-frequency circuit board 1 is completed. As shown, at this time, the two high-frequency circuit boards 1 are respectively opposite to the two pressing plates 33 of the clamping assembly 4. Figure 15 shown, at this time, the two high-frequency circuit boards 1 are respectively opposite to the two pressing plates 33 of the clamping assembly 4. S12. Control the piston rods of the two pressing cylinders 32 of the clamping assembly 4 to retract. The piston rods drive the pressing plates 33 connected thereto to move towards the high-frequency circuit board 1. When the piston rods of the pressing cylinders 32 are fully retracted, the pressing plates 33 fix the high-frequency circuit board 1 in the positioning stop ports 31, thus completing the tooling fixation of the two high-frequency circuit boards 1 to be detected. As shown, Figure 16 shown; S2. Control the piston rod of the linear cylinder 5 to extend leftward. The piston rod drives the frame 6 to move leftward. The frame 6 drives the detection component A10 to move towards the high-frequency circuit board 1 above. At the same time, the frame 6 also drives the detection component B11 to move towards the high-frequency circuit board 1 below. When the piston rod of the linear cylinder 5 is fully extended, both the detection component A10 and the detection component B11 enter the detection station. As shown, Figures 17 to 18As shown in the figure, at this time, the microswitch 15 of the detection component A10 is horizontally opposite to the right end face of the upper high-frequency circuit board 1, and the vertical rod 23 of the detection component A10 is vertically opposite to the blind hole 2 in the upper high-frequency circuit board 1. At the same time, the microswitch 15 of the detection component B11 is horizontally opposite to the right end face of the lower high-frequency circuit board 1, and the vertical rod 23 of the detection component B11 is vertically opposite to the blind hole 2 in the lower high-frequency circuit board 1; S3. Control the motor 9 to start. The motor 9 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the cam 8 to rotate synchronously. During the rotation of the cam 8, the floating plate 20 of the detection component A10 gradually moves downward along the optical rod column 19 under the pulling force of the tension spring 21. At the same time, the floating plate 20 of the detection component B11 gradually moves upward along the optical rod column 19 under the pulling force of the tension spring 21. The two floating plates 20 respectively drive the side push plates 26 and the connecting frames 22 connected to them to move synchronously. The wedge-shaped surface 28 of the side push plate 26 pushes the roller 18 to move leftward, the roller 18 drives the horizontal rod 14 to move leftward, the horizontal rod 14 drives the microswitch 15 to move leftward, and the microswitch 15 stretches the horizontal spring 17 to the left. And the connecting frame 22 drives the vertical rod 23 to move towards the blind hole 2 of the high-frequency circuit board 1; When the cam 8 rotates 90°, as Figures 19 to 20 shown, the controller controls the motor 9 to turn off. At this time, if the controller receives the electrical signal sent by the microswitch 15 of the detection component A10, it indicates that the elastic piece 16 of the microswitch 15 presses against the right end face of the upper high-frequency circuit board 1, and the microswitch 15 sends another electrical signal to the controller, further indicating that the width of the upper high-frequency circuit board 1 is greater than the designed width, and the worker determines that the upper high-frequency circuit board 1 is a defective product; If the controller receives the displacement signal sent by the displacement sensor 24 of the detection component A10, it indicates that the bottom end of the vertical rod 23 touches the bottom of the blind hole 2 of the upper high-frequency circuit board 1, causing the displacement sensor 24 to generate an upward displacement, further indicating that the depth of the blind hole 2 of the upper high-frequency circuit board 1 is less than the designed depth, and the worker determines that the upper high-frequency circuit board 1 is a defective product; If the controller does not receive the electrical signal sent by the microswitch 15 of the detection component A10, nor the displacement signal sent by the displacement sensor 24 of the detection component A10, it indicates that the width of the upper high-frequency circuit board 1 and the depth of the blind hole 2 meet the design requirements, and the worker determines that the upper high-frequency circuit board 1 is a qualified product; Meanwhile, if the controller receives the electrical signal sent by the microswitch 15 of the detection component B11, or receives the displacement signal sent by the displacement sensor 24 of the detection component B11, the worker determines that the high-frequency circuit board 1 below is a defective product; if the controller does not receive the electrical signal sent by the microswitch 15 of the detection component B11, nor receives the displacement signal sent by the displacement sensor 24 of the detection component B11, the worker determines that the high-frequency circuit board 1 below is a qualified product, thus finally completing the simultaneous detection of the widths of the two high-frequency circuit boards 1 and the depths of the internal blind holes 2 therein; Among them, it can be seen from steps S2 to S3 that the worker only needs to first control the piston rod of the linear cylinder 5 to extend to the left, so that the detection component A10 and the detection component B11 are respectively in the detection stations of the two high-frequency circuit boards 1; then control the motor 9 to start, so that the microswitch 15 moves towards the right end face direction of the high-frequency circuit board 1, and at the same time, the vertical rod 23 enters the blind hole 2 of the high-frequency circuit board 1, thereby completing the simultaneous detection of the width of the high-frequency circuit board 1 and the depth of the internal blind hole 2 therein, and then determining whether the detected high-frequency circuit board 1 is a qualified product or a defective product.

[0026] It can be seen from this that compared with the detection method in the workshop, this high-efficiency detection device does not require the worker to measure the width of the high-frequency circuit board 1 and the depth of the internal blind hole 2 therein through two processes respectively to complete the detection of the high-frequency circuit board 1. Instead, through one process, the detection of the width of the high-frequency circuit board 1 and the internal blind hole 2 therein can be completed simultaneously, thereby realizing the detection of all the high-frequency circuit boards 1 in the workshop within a short time, and thus greatly improving the detection efficiency of the high-frequency circuit board 1.

[0027] S4. Removal of defective or qualified products, and the specific operation steps are as follows: S41. Control the motor 9 to start. The motor 9 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the cam 8 to rotate synchronously. During the rotation of the cam 8, the floating plate 20 of the detection component A10 gradually moves upward along the optical rod column 19 under the pulling force of the tension spring 21. At the same time, the floating plate 20 of the detection component B11 gradually moves downward along the optical rod column 19 under the pulling force of the tension spring 21; when the cam 8 rotates 90°, the microswitch 15 is separated from the high-frequency circuit board 1, and at the same time, the vertical rod 23 withdraws from the blind hole 2 of the high-frequency circuit board 1; S42. Control the piston rod of the linear cylinder 5 to retract to the right. The piston rod drives the frame 6 to move to the right, and the frame 6 drives the motor 9, the cam 8, the detection component A10 and the detection component B11 to move to the right synchronously, so that the detection component A10 and the detection component B11 move to the initial position; S43. The worker extends the piston rods of the two pressing cylinders 32 of the clamping assembly 4 outwards. The piston rods drive the pressing plates 33 to move outwards, and then the worker removes the non-conforming or conforming products on the base 29. S5. The worker repeats the operations in steps S1 to S4 multiple times to completely inspect all the high-frequency circuit boards 1 in the workshop. After the inspection is completed, the worker sends the non-conforming products to the rework process to repair the non-conforming products. At the same time, the conforming products are transported to the subsequent processing process to perform other processes on the conforming products.

[0028] Among them, it can be seen from steps S1 to S5 that through the linkage cooperation of the linear cylinder 5, the motor 9, the cam 8, the detection assembly A10, and the detection assembly B11, this high-efficiency detection device can simultaneously detect the widths of the two high-frequency circuit boards 1 and the depths of the internal blind holes 2 therein. It can be seen that compared with the detection methods in the workshop, this high-efficiency detection device does not require workers to detect the high-frequency circuit boards 1 one by one. The number of detections at one time is twice the original detection number, so as to complete the detection of all the high-frequency circuit boards 1 in the workshop in a short time, and further greatly improve the detection efficiency of the high-frequency circuit boards 1.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention..

Claims

1. An efficient detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind holes, characterized in that: It comprises a workbench (3), on which a clamping assembly (4) for fixing two high-frequency circuit boards (1) to be tested is arranged, and on which a linear cylinder (5) located on the right side of the clamping assembly (4) is also arranged, and on which an action end of a piston rod of the linear cylinder (5) is fixedly provided with a horizontally arranged frame (6), and a rotating shaft (7) is rotatably mounted in the frame (6) and between its front and rear edges, and a vertically arranged cam (8) is fixedly provided on the rotating shaft (7), and a motor (9) is fixedly provided on the rear end surface of the frame (6), and an output shaft of the motor (9) is connected to the rotating shaft (7); The frame (6) is provided with a detection component A (10) and a detection component B (11) for detecting the width of the high-frequency circuit board (1) and the depth of the blind hole (2) in the high-frequency circuit board (1). The detection component A (10) comprises a guide seat (12) fixedly arranged on the left end surface of the frame (6) and a fixing plate (13) fixedly arranged between the front and rear edges of the frame (6); A horizontal rod (14) is slidably inserted into the guide seat (12), a mounting plate and a micro switch (15) are fixedly mounted on the left end of the horizontal rod (14), a spring (16) of the micro switch (15) is arranged facing left, a horizontal spring (17) is sleeved on the horizontal rod (14), the left and right ends of the horizontal spring (17) are respectively fixedly mounted on the mounting plate and the guide seat (12), and a roller (18) is rotatably mounted on the right end of the horizontal rod (14); A bare rod column (19) is fixedly provided on the top surface of the fixed plate (13), a floating plate (20) is sleeved on the bare rod column (19), a tension spring (21) is sleeved on the bare rod column (19), and under the elastic force of the tension spring (21), the floating plate (20) abuts against the top surface of the cam (8), the floating plate (20) extends to the left outside the frame (6), and a connecting frame (22) is fixedly provided on the top surface of the extended end, a vertical rod (23) is slidably penetrated in the top wall of the connecting frame (22), a support plate and a displacement sensor (24) are fixedly provided on the top end of the vertical rod (23), a vertical spring (25) is sleeved on the vertical rod (23), and the upper and lower ends of the vertical spring (25) are respectively fixedly provided on the support plate and the connecting frame (22); A side thrust plate (26) is fixedly provided on the bottom surface of the floating plate (20), and a vertical surface (27) and a wedge-shaped surface (28) inclined leftward and upward are provided on the left end surface of the side thrust plate (26), wherein the vertical surface (27) is butted against the wedge-shaped surface (28), and the vertical surface (27) is in contact with the roller (18).

2. The high-efficiency detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind vias according to claim 1, wherein: A plurality of support legs supported on the ground are fixedly arranged on the bottom surface of the workbench (3).

3. The high-efficiency detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind holes according to claim 2, wherein: A base (29) corresponding to the linear cylinder (5) is fixedly arranged on the table surface of the workbench (3), and a cylinder body of the linear cylinder (5) is fixedly arranged on the base (29).

4. An efficient detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind vias according to claim 3, characterized in that: The diameter of the lower end of the vertical rod (23) is smaller than the diameter of the blind hole (2) in the high-frequency circuit board (1).

5. The high-efficiency detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind holes according to claim 4, characterized in that: The detection component A (10) and the detection component B (11) are arranged symmetrically up and down with respect to the cam (8).

6. The efficient detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind holes according to claim 5, characterized in that: The clamping assembly (4) includes a column fixed on the tabletop of the workbench (3), and a positioning seat (30) fixed on the top of the column. Positioning stop ports (31) penetrating through the right end face are formed on both the top and bottom surfaces of the positioning seat (30). The positioning stop ports (31) are matched with the outer contour of the high-frequency circuit board (1). Pressing cylinders (32) are fixedly arranged on both the top and bottom surfaces of the positioning seat (30). A pressing plate (33) located directly above the positioning stop port (31) is fixedly arranged at the acting end of the piston rod of the pressing cylinder (32) located above.

7. The high-efficiency detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind holes according to claim 6, characterized in that: The high-efficiency detection device further includes a controller, which is electrically connected to the motor (9), the linear cylinder (5) and the pressing cylinder (32) via signal lines.

8. An efficient detection method for detecting the width of a high-frequency circuit board and the depth of its internal blind vias, using an efficient detection device for detecting the width of a high-frequency circuit board and the depth of its internal blind vias as described in claim 7, characterized in that: It includes the following steps: S1. Fixture fixing of two high-frequency circuit boards (1) to be detected. The specific operation steps are as follows: S11. The worker takes out two high-frequency circuit boards (1) to be detected, and respectively places the two high-frequency circuit boards (1) into the two positioning stop ports (31) of the base (29) of the clamping assembly (4), and holds the two high-frequency circuit boards (1) by hand. Since the positioning stop ports (31) are matched with the outer contour of the high-frequency circuit board (1), the positioning of the high-frequency circuit board (1) is completed. At this time, the two high-frequency circuit boards (1) are respectively opposite to the two pressing plates (33) of the clamping assembly (4); S12. Control the piston rods of the two pressing cylinders (32) of the clamping assembly (4) to retract. The piston rods drive the pressing plates (33) connected thereto to move towards the high-frequency circuit board (1). When the piston rods of the pressing cylinders (32) are completely retracted, the pressing plates (33) fix the high-frequency circuit board (1) in the positioning stop ports (31), thereby completing the fixture fixing of the two high-frequency circuit boards (1) to be detected; S2. Control the piston rod of the linear cylinder (5) to extend leftward. The piston rod drives the frame (6) to move leftward. The frame (6) drives the detection assembly A (10) to move towards the high-frequency circuit board (1) above. At the same time, the frame (6) also drives the detection assembly B (11) to move towards the high-frequency circuit board (1) below; When the piston rod of the linear cylinder (5) is completely extended, both the detection assembly A (10) and the detection assembly B (11) enter the detection station. At this time, the microswitch (15) of the detection assembly A (10) is left-right opposite to the right end face of the high-frequency circuit board (1) above, and the vertical rod (23) of the detection assembly A (10) is up-down opposite to the blind hole (2) in the high-frequency circuit board (1) above. At the same time, the microswitch (15) of the detection assembly B (11) is left-right opposite to the right end face of the high-frequency circuit board (1) below, and the vertical rod (23) of the detection assembly B (11) is up-down opposite to the blind hole (2) in the high-frequency circuit board (1) below; S3. Control the motor (9) to start. The motor (9) drives the rotating shaft (7) to rotate, and the rotating shaft (7) drives the cam (8) to rotate synchronously. During the rotation of the cam (8), the floating plate (20) of the detection component A (10) gradually moves downward along the optical rod column (19) under the pulling force of the tension spring (21). At the same time, the floating plate (20) of the detection component B (11) gradually moves upward along the optical rod column (19) under the pulling force of the tension spring (21). The two floating plates (20) respectively drive the side push plate (26) and the connecting frame (22) connected to them to move synchronously. The wedge surface (28) of the side push plate (26) pushes the roller (18) to move leftward. The roller (18) drives the horizontal rod (14) to move leftward. The horizontal rod (14) drives the microswitch (15) to move leftward. The microswitch (15) stretches the horizontal spring (17) to the left, and the connecting frame (22) drives the vertical rod (23) to move towards the blind hole (2) of the high-frequency circuit board (1). When the cam (8) rotates 90°, the controller controls the motor (9) to turn off. At this time, if the controller receives the electrical signal sent by the microswitch (15) of the detection component A (10), it indicates that the elastic piece (16) of the microswitch (15) presses against the right end face of the upper high-frequency circuit board (1). The microswitch (15) sends an electrical signal to the controller again, further indicating that the width of the upper high-frequency circuit board (1) is greater than the designed width, and the worker determines that the upper high-frequency circuit board (1) is a defective product. If the controller receives the displacement signal sent by the displacement sensor (24) of the detection component A (10), it indicates that the bottom end of the vertical rod (23) touches the bottom of the blind hole (2) of the upper high-frequency circuit board (1), causing the displacement sensor (24) to generate an upward displacement. Further indicating that the depth of the blind hole (2) of the upper high-frequency circuit board (1) is less than the designed depth, and the worker determines that the upper high-frequency circuit board (1) is a defective product. If the controller does not receive the electrical signal sent by the microswitch (15) of the detection component A (10) and does not receive the displacement signal sent by the displacement sensor (24) of the detection component A (10), it indicates that the width of the upper high-frequency circuit board (1) and the depth of the blind hole (2) meet the design requirements, and the worker determines that the upper high-frequency circuit board (1) is a qualified product. Meanwhile, if the controller receives the electrical signal sent by the microswitch (15) of the detection component B (11) or the displacement signal sent by the displacement sensor (24) of the detection component B (11), the worker determines that the high-frequency circuit board (1) below is a defective product; if the controller does not receive the electrical signal sent by the microswitch (15) of the detection component B (11) nor the displacement signal sent by the displacement sensor (24) of the detection component B (11), the worker determines that the high-frequency circuit board (1) below is a qualified product, thus finally completing the simultaneous detection of the widths of the two high-frequency circuit boards (1) and the depths of the internal blind holes (2) therein; S4. Removal of defective or qualified products. The specific operation steps are as follows: S41. Control the motor (9) to start. The motor (9) drives the rotating shaft (7) to rotate, and the rotating shaft (7) drives the cam (8) to rotate synchronously. During the rotation of the cam (8), the floating plate (20) of the detection component A (10) gradually moves upward along the optical rod column (19) under the pulling force of the tension spring (21). At the same time, the floating plate (20) of the detection component B (11) gradually moves downward along the optical rod column (19) under the pulling force of the tension spring (21). When the cam (8) rotates 90°, the microswitch (15) is separated from the high-frequency circuit board (1). At the same time, the vertical rod (23) withdraws from the blind hole (2) of the high-frequency circuit board (1); S42. Control the piston rod of the linear cylinder (5) to retract to the right. The piston rod drives the frame (6) to move to the right, and the frame (6) drives the motor (9), the cam (8), the detection component A (10) and the detection component B (11) to move to the right synchronously, so that the detection component A (10) and the detection component B (11) move to the initial position; S43. The worker controls the piston rods of the two pressing cylinders (32) of the clamping component (4) to extend outward. The piston rods drive the pressing plates (33) to move outward, and then the worker removes the defective or qualified products on the base (29); S5. The worker repeats the operations of steps S1 to S4 multiple times to completely detect all the high-frequency circuit boards (1) in the workshop. After the detection is completed, the worker sends the defective products to the rework process to repair the defective products. At the same time, the qualified products are transported to the subsequent processing process to perform other processes on the qualified products.

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