An efficient detection device and method for detecting the width of a high-frequency circuit board and the depth of its internal blind holes

Abstract

The present invention discloses an efficient detection device and method for detecting the width of a high-frequency circuit board and the depth of blind holes therein. The present invention relates to the technical field of detecting the width and depth of blind holes in high-frequency circuit boards. A clamping assembly for fixing two high-frequency circuit boards to be inspected is provided on a workbench. A linear cylinder is also provided on the workbench, located to the right of the clamping assembly. A horizontally arranged frame is fixed to the active end of the linear cylinder piston rod. A rotating shaft is rotatably mounted within the frame and between its front and rear edges. A vertically arranged cam is fixed to the rotating shaft. A motor is fixed to 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 assembly A and a detection assembly B for detecting the width of the high-frequency circuit board and the depth of the blind holes therein. The beneficial effects of the present invention are: greatly reducing the workload of workers and greatly improving the efficiency of high-frequency circuit board inspection.

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 a blind hole therein, and in particular to an efficient detection device and method for detecting the width of a high-frequency circuit board and the depth of a blind hole therein. Background Art

[0002] High-frequency circuit boards have the following characteristics: 1. High transmission efficiency: Thanks to their low dielectric constant and high-quality material properties, high-frequency circuit boards consume less power than other circuit boards. 2. High operating speed: Transmission speed is inversely proportional to the square root of the dielectric constant. High-frequency circuit boards use special materials to ensure a low dielectric constant, resulting in faster signal transmission and relatively stable operation.

[0003] The structure of the high-frequency circuit board 1 produced in a certain workshop is as follows Figure 1~Figure 2 As shown, the high-frequency circuit board 1 is generally rectangular in shape. A blind hole 2 is formed on the top surface of the high-frequency circuit board 1. The blind hole 2 is used to solder electronic components. After a batch of high-frequency circuit boards 1 is produced in the workshop, the process requires that the width W of each high-frequency circuit board 1 and the depth H of the blind hole 2 therein be inspected. If the width W of the inspected high-frequency circuit board 1 is greater than the designed width or the depth H of the blind hole 2 therein is less than the designed depth, the worker will determine that the inspected high-frequency circuit board 1 is unqualified. If the width W of the inspected 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 will determine that the inspected high-frequency circuit board 1 is qualified.

[0004] The specific method for workers in the workshop to detect the width of the high-frequency circuit board 1 and the depth of the blind hole 2 therein is:

[0005] S1. A worker takes out a high-frequency circuit board 1 and places it flat on the table of a machine. The left end face of the high-frequency circuit board 1 is pressed against the left edge of the table to achieve positioning of the high-frequency circuit board 1.

[0006] S2. The worker places the caliper flat on the table of the machine, aligns the zero mark of the caliper with the left end surface of the high-frequency circuit board 1, and then observes the position where the right end surface of the high-frequency circuit board 1 points to the caliper, and then 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 unqualified; if the measured height is less than the designed width, the worker determines that the high-frequency circuit board 1 is semi-qualified.

[0007] S3. The worker uses a vernier caliper to measure the depth of the blind hole 2 in the semi-qualified product. If the measured depth of the blind hole 2 is less than the designed depth, the semi-qualified product is determined to be unqualified. If the measured depth is greater than the designed depth, the unqualified product is determined to be qualified. This completes the inspection of the width of a high-frequency circuit board 1 and the depth of its blind hole 2.

[0008] S4. The worker repeats steps S1 to S3 for several times to complete the inspection of all high-frequency circuit boards 1 in the workshop; the worker sends the unqualified products to the rework process to repair the unqualified products, and at the same time, sends the qualified products to the subsequent processing process to undergo other processes.

[0009] 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, workers still reflect the following technical defects in actual operation:

[0010] I. In step S2, the worker needs to manually measure the width of the high-frequency circuit board 1 with a caliper, and then in step S3, the worker needs to manually measure the depth of the blind via 2 in the high-frequency circuit board 1 with a vernier caliper. In other words, two processes are required to complete the measurement of the width of the high-frequency circuit board 1 and the depth of the blind via 2 therein, respectively. As a result, it takes a long time to complete the inspection of one high-frequency circuit board 1, and further, it takes a long time to complete the inspection of all high-frequency circuit boards 1 in the workshop, resulting in a technical defect of low inspection efficiency of the high-frequency circuit boards 1. In addition, both measurement processes are completed manually, which undoubtedly increases the workload of the workers.

[0011] II. Only one high-frequency circuit board 1 can be located at a time, and accordingly, only the width and the depth of the blind via 2 in the high-frequency circuit board 1 can be measured. However, there are as many as 300 to 320 high-frequency circuit boards 1 to be inspected in the workshop. If workers inspect the high-frequency circuit boards 1 in the workshop one by one, it will undoubtedly take a long time to complete the inspection of all the high-frequency circuit boards 1 in the workshop, further reducing the inspection efficiency of the high-frequency circuit boards 1.

[0012] Therefore, there is an urgent need for a detection device and method that can greatly reduce the workload of workers and greatly improve the efficiency of high-frequency circuit board detection. Summary of the Invention

[0013] 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 high-frequency circuit boards and the depth of blind holes therein, which greatly reduces the workload of workers and greatly improves the efficiency of high-frequency circuit board detection.

[0014] The objectives of the present invention are 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, a linear cylinder located on the right side of the clamping assembly, a horizontally arranged frame fixed to the active end of the linear cylinder piston rod, a rotating shaft rotatably mounted within the frame and located between the front and rear edges thereof, a vertically arranged cam fixed to the rotating shaft, a motor fixed to the rear end surface of the frame, and an output shaft of the motor connected to the rotating shaft;

[0015] 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 fixed on the left end surface of the frame and a fixing plate fixed between the front and rear edges of the frame.

[0016] A horizontal rod is slidably inserted into the guide seat, and a mounting plate and a micro switch are fixed in sequence on the left end of the horizontal rod, with the spring of the micro switch facing left. A horizontal spring is sleeved on the horizontal rod, and the left and right ends of the horizontal spring are respectively fixed on the mounting plate and the guide seat, and a roller is rotatably mounted on the right end of the horizontal rod;

[0017] A polished rod column is fixed on the top surface of the fixed plate, a floating plate is sleeved on the polished rod column, and a tension spring is sleeved on the polished rod column. Under the elastic force of the tension spring, the floating plate rests on the top surface of the cam, and 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, and 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;

[0018] A side push plate is fixed on the bottom surface of the floating plate, and a vertical surface and a wedge surface inclined leftward and upward are provided on the left end surface of the side push plate. The vertical surface is in contact with the wedge surface, and the vertical surface is in contact with the roller.

[0019] A plurality of supporting legs supported on the ground are fixedly provided on the bottom surface of the workbench.

[0020] A base corresponding to the linear cylinder is fixedly provided on the table top of the workbench, and a cylinder body of the linear cylinder is fixedly provided on the base.

[0021] The diameter of the lower end portion of the vertical rod is smaller than the diameter of the blind hole in the high-frequency circuit board.

[0022] The detection component A and the detection component B are symmetrically arranged about the cam.

[0023] The clamping assembly includes a column fixed on the workbench surface and a positioning seat fixed on the top of the column. The top and bottom surfaces of the positioning seat are provided with positioning stops that pass through the right end surface. The positioning stops match the outer contour of the high-frequency circuit board. The top and bottom surfaces of the positioning seat are fixed with clamping cylinders. The active end of the piston rod of the upper clamping cylinder is fixed with a pressure plate located directly above the positioning stop.

[0024] The high-efficiency detection device also includes a controller, which is electrically connected to the motor, the linear cylinder and the pressing cylinder via signal lines.

[0025] An efficient detection method for detecting the width of a high-frequency circuit board and the depth of a blind hole therein comprises the following steps:

[0026] S1. Fix the fixtures of the two high-frequency circuit boards to be tested. The specific steps are as follows:

[0027] S11. The worker takes out two high-frequency circuit boards to be tested, places them into the two positioning stoppers of the base of the clamping assembly, and holds the two high-frequency circuit boards by hand. Since the positioning stoppers match the outer contours of the high-frequency circuit boards, the positioning of the high-frequency circuit boards is completed. At this time, the two high-frequency circuit boards are respectively opposite to the two pressure plates of the clamping assembly;

[0028] S12. Control the piston rods of the two clamping cylinders of the clamping assembly to retract, and the piston rods drive the pressure plate connected thereto to move toward the high-frequency circuit board. When the piston rods of the clamping cylinders are fully retracted, the pressure plate fixes the high-frequency circuit board in the positioning stop, thereby completing the tooling fixation of the two high-frequency circuit boards to be tested;

[0029] S2. Control the piston rod of the linear cylinder to extend to the left. The piston rod drives the frame to move to the left. The frame drives the detection component A to move toward the high-frequency circuit board above. At the same time, the frame also drives the detection component B to move toward the high-frequency circuit board below.

[0030] When the piston rod of the linear cylinder is fully extended, both detection component A and detection component B enter the detection station. At this time, the micro switch of detection component A is opposite to the right end surface of the high-frequency circuit board above, and the vertical rod of detection component A is opposite to the blind hole in the high-frequency circuit board above. At the same time, the micro switch of detection component B is opposite to the right end surface of the high-frequency circuit board below, and the vertical rod of detection component B is opposite to the blind hole in the high-frequency circuit board below.

[0031] S3. The control motor starts, and 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 downward along the polished rod column under the tension of the tension spring. At the same time, the floating plate of the detection component B gradually moves upward along the polished rod column under the tension of the tension spring. The two floating plates respectively drive the side push plates and the connecting frame connected thereto to move synchronously. The wedge-shaped surface of the side push plate pushes the roller to the left, and the roller drives the horizontal rod to move to the left. The horizontal rod drives the micro switch to move to the left. The micro switch causes the horizontal spring to stretch to the left, and the connecting frame drives the vertical rod to move toward the blind hole of the high-frequency circuit board.

[0032] When the cam rotates 90 degrees, the controller controls the motor to turn off. At this time, if the controller receives an electrical signal from the micro switch of detection component A, it means that the spring of the micro switch has pressed the right end surface of the upper high-frequency circuit board. The micro switch then sends an electrical signal to the controller, indicating that the width of the upper high-frequency circuit board exceeds the designed width. The worker determines that the upper high-frequency circuit board is unqualified.

[0033] If the controller receives a displacement signal from the displacement sensor of detection component A, it means that the bottom end of the vertical rod has touched the bottom of the blind hole of the high-frequency circuit board above, causing the displacement sensor to move upward, which in turn means that the depth of the blind hole of the high-frequency circuit board above is less than the designed depth. The worker determines that the high-frequency circuit board above is unqualified.

[0034] If the controller does not receive the electrical signal from the micro switch of the detection component A, nor does it receive the displacement signal from the displacement sensor of the detection component A, it means that the width of the upper high-frequency circuit board and the depth of the blind hole meet the design requirements. The worker determines that the upper high-frequency circuit board is qualified.

[0035] At the same time, if the controller receives an electrical signal from the micro switch of detection component B, or receives a displacement signal from the displacement sensor of detection component B, the worker determines that the high-frequency circuit board below is unqualified; if the controller does not receive an electrical signal from the micro switch of detection component B, nor does it receive a displacement signal from the displacement sensor of detection component B, the worker determines that the high-frequency circuit board below is qualified, thus finally completing the simultaneous detection of the width of the two high-frequency circuit boards and the depth of the blind holes therein;

[0036] S4. The specific steps for taking away unqualified or qualified products are as follows:

[0037] S41. The control motor starts, 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 polished rod column under the tension of the tension spring. At the same time, the floating plate of the detection component B gradually moves downward along the polished rod column under the tension of the tension spring. When the cam rotates 90 degrees, the micro switch separates from the high-frequency circuit board, and the vertical rod is withdrawn from the blind hole of the high-frequency circuit board.

[0038] 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. The frame drives the motor, cam, detection assembly A, and detection assembly B to move to the right synchronously, thereby moving detection assembly A and detection assembly B to their initial positions.

[0039] S43. The worker controls the piston rods of the two compression cylinders of the clamping assembly to extend outward, which drives the pressure plate to move outward. The worker then removes the defective or qualified products from the base.

[0040] S5. The worker repeats steps S1 to S4 several times to complete the inspection of all high-frequency circuit boards in the workshop. After the inspection is completed, the worker sends the unqualified products to the rework process for repair, and at the same time, sends the qualified products to the subsequent processing process for other processing steps.

[0041] The present invention has the following advantages: greatly reducing the workload of workers and greatly improving the efficiency of high-frequency circuit board detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a structural diagram of a high-frequency circuit board produced in a workshop;

[0043] Figure 2 for Figure 1 A top view of

[0044] Figure 3 It is a structural schematic diagram of the present invention;

[0045] Figure 4 for Figure 3 The main cross-sectional diagram of

[0046] Figure 5 is a structural schematic diagram of the clamping assembly;

[0047] Figure 6 for Figure 5 The main cross-sectional diagram of

[0048] Figure 7 This is a schematic diagram of the connection between the linear cylinder, frame, cam, detection component A and detection component B;

[0049] Figure 8 for Figure 7 Rear view;

[0050] Figure 9 for Figure 7 The main cross-sectional diagram of

[0051] Figure 10 It is a structural diagram of the detection component A;

[0052] Figure 11 for Figure 10 The main cross-sectional diagram of

[0053] Figure 12 is the axonometric drawing of the cam;

[0054] Figure 13 This is the axonometric drawing of the thrust plate;

[0055] Figure 14 for Figure 13 The main cross-sectional diagram of

[0056] Figure 15 To complete the schematic diagram of positioning the high-frequency circuit board;

[0057] Figure 16 A schematic diagram showing the fixture fixation for two high-frequency circuit boards to be tested;

[0058] Figure 17 Schematic diagram of both inspection component A and inspection component B entering the inspection station;

[0059] Figure 18 for Figure 17 A partial enlarged view of part C;

[0060] Figure 19 This is a schematic diagram after the cam is rotated 90°;

[0061] Figure 20 A partial enlarged view of the D portion;

[0062] In the picture:

[0063] 1-high frequency circuit board, 2-blind via;

[0064] 3- workbench, 4- clamping assembly, 5- linear cylinder, 6- frame, 7- rotating shaft, 8- cam, 9- motor, 10- detection assembly A, 11- detection assembly B, 12- guide seat, 13- fixed plate, 14- horizontal rod, 15- micro switch, 16- spring, 17- horizontal spring, 18- roller;

[0065] 19- bare rod, 20- floating plate, 21- tension spring, 22- connecting frame, 23- vertical rod, 24- displacement sensor, 25- vertical spring, 26- thrust plate, 27- vertical surface, 28- wedge surface, 29- base;

[0066] 30- positioning seat, 31- positioning stop, 32- pressing cylinder, 33- pressing plate. DETAILED DESCRIPTION

[0067] The present invention will be further described below with reference to the accompanying drawings, and the protection scope of the present invention is not limited to the following:

[0068] like Figures 3 to 14 As shown, an efficient detection device for detecting the width of a high-frequency circuit board and the depth of a blind hole therein, comprises a workbench 3, a bottom surface of the workbench 3 is fixedly provided with a plurality of support legs supported on the ground, the workbench 3 is provided with a clamping assembly 4 for fixing two high-frequency circuit boards 1 to be detected, the workbench 3 is also provided with a linear cylinder 5 located on the right side of the clamping assembly 4, a horizontally arranged frame 6 is fixedly provided on the active end of the piston rod of the linear cylinder 5, a rotating shaft 7 is rotatably installed in the frame 6 and between the front and rear edges thereof, a vertically arranged cam 8 is fixedly provided on the rotating shaft 7, a motor 9 is fixedly provided on the rear end surface of the frame 6, and 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 provided on the surface of the workbench 3, and the cylinder body of the linear cylinder 5 is fixedly provided on the base 29.

[0069] The frame 6 is provided with a detection component A10 and a detection component B11 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 A10 and the detection component B11 are arranged symmetrically about the cam 8. The detection component A10 includes a guide seat 12 fixed on the left end surface of the frame 6 and a fixing plate 13 fixed between the front and rear edges of the frame 6.

[0070] A horizontal rod 14 slides through the guide seat 12, and a mounting plate and a micro switch 15 are fixed to the left end of the horizontal rod 14 in sequence. The spring 16 of the micro switch 15 is set to the left, and a horizontal spring 17 is sleeved on the horizontal rod 14. The left and right ends of the horizontal spring 17 are respectively fixed to the mounting plate and the guide seat 12, and a roller 18 is rotatably installed on the right end of the horizontal rod 14.

[0071] A light rod column 19 is fixed on the top surface of the fixed plate 13, and a floating plate 20 is sleeved on the light rod column 19. A tension spring 21 is sleeved on the light rod column 19. Under the elastic force of the tension spring 21, the floating plate 20 rests on 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 fixed on the top surface of the extended end. A vertical rod 23 is slidably penetrated in 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 inner wall of the high-frequency circuit board 1. The diameter of the blind hole 2, the top part of the vertical rod 23 is fixed with a support plate and a displacement sensor 24 in sequence, the vertical rod 23 is sleeved with a vertical spring 25, and the upper and lower ends of the vertical spring 25 are respectively fixed on the support plate and the connecting frame 22; a side thrust plate 26 is fixed on the bottom surface of the floating plate 20, and a vertical surface 27 and a wedge-shaped surface 28 inclined to the left and upward are provided on the left end surface of the side thrust plate 26, the vertical surface 27 is docked with the wedge-shaped surface 28, and the vertical surface 27 is in contact with the roller 18.

[0072] The clamping assembly 4 includes a column fixed on the surface of the workbench 3 and a positioning seat 30 fixed on the top of the column. The top and bottom surfaces of the positioning seat 30 are provided with a positioning stop 31 passing through its right end surface. The positioning stop 31 is matched with the outer contour of the high-frequency circuit board 1. A clamping cylinder 32 is fixed on the top and bottom surfaces of the positioning seat 30. A pressure plate 33 located directly above the positioning stop 31 is fixed on the active end of the piston rod of the upper clamping cylinder 32.

[0073] The efficient detection device also includes a controller, which is electrically connected to the motor 9, the linear cylinder 5 and the clamping cylinder 32 via a signal line. Workers can use the controller to control the extension or retraction of the piston rods of the linear cylinder 5 and the clamping cylinder 32. At the same time, it can also control the start or stop of the motor 9, thereby facilitating the worker's operation and having a high degree of automation.

[0074] An efficient detection method for detecting the width of a high-frequency circuit board and the depth of a blind hole therein comprises the following steps:

[0075] S1. Fix the two high-frequency circuit boards 1 to be tested. The specific operation steps are as follows:

[0076] S11, the worker takes out two Figure 1~Figure 2 As shown, with the high-frequency circuit board 1 to be tested, the two high-frequency circuit boards 1 are placed into the two positioning stoppers 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 stoppers 31 match the outer contour of the high-frequency circuit board 1, the positioning of the high-frequency circuit board 1 is completed, as shown in FIG. Figure 15 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;

[0077] S12, control the piston rods of the two clamping cylinders 32 of the clamping assembly 4 to retract, and the piston rods drive the pressure plate 33 connected thereto to move toward the high-frequency circuit board 1. When the piston rods of the clamping cylinders 32 are fully retracted, the pressure plate 33 fixes the high-frequency circuit board 1 in the positioning stop 31, thereby completing the tooling fixation of the two high-frequency circuit boards 1 to be tested. Figure 16 As shown;

[0078] S2. Control the piston rod of the linear cylinder 5 to extend to the left. The piston rod drives the frame 6 to move to the left. The frame 6 drives the detection component A10 to move toward the high-frequency circuit board 1 above. At the same time, the frame 6 also drives the detection component B11 to move toward the high-frequency circuit board 1 below.

[0079] 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 in FIG. Figure 17-18 As shown, at this time, the micro switch 15 of the detection component A10 is opposite to the right end surface of the upper high-frequency circuit board 1 in the left and right direction, and the vertical rod 23 of the detection component A10 is opposite to the blind hole 2 in the upper high-frequency circuit board 1 in the top direction. At the same time, the micro switch 15 of the detection component B11 is opposite to the right end surface of the lower high-frequency circuit board 1 in the left and right direction, and the vertical rod 23 of the detection component B11 is opposite to the blind hole 2 in the lower high-frequency circuit board 1 in the top direction.

[0080] S3. The control motor 9 is started, and 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 light rod column 19 under the tension of the tension spring 21. At the same time, the floating plate 20 of the detection component B11 gradually moves upward along the light rod column 19 under the tension of the tension spring 21. The two floating plates 20 respectively drive the side push plate 26 and the connecting frame 22 connected thereto to move synchronously. The wedge-shaped surface 28 of the side push plate 26 pushes the roller 18 to move leftward, and the roller 18 drives the horizontal rod 14 to move leftward. The horizontal rod 14 drives the micro switch 15 to move leftward. The micro switch 15 causes the horizontal spring 17 to stretch to the left, and the connecting frame 22 drives the vertical rod 23 to move toward the blind hole 2 of the high-frequency circuit board 1.

[0081] When the cam 8 rotates 90°, Figures 19 and 20 As shown, the controller controls the motor 9 to turn off. At this time, if the controller receives an electrical signal from the micro switch 15 of the detection component A10, it means that the spring 16 of the micro switch 15 has pressed against the right end surface of the upper high-frequency circuit board 1. The micro switch 15 then sends an electrical signal to the controller, indicating that the width of the upper high-frequency circuit board 1 exceeds the designed width. The worker determines that the upper high-frequency circuit board 1 is unqualified.

[0082] If the controller receives a displacement signal from the displacement sensor 24 of the detection assembly A10, it indicates that the bottom end of the vertical rod 23 has touched the bottom of the blind hole 2 of the upper high-frequency circuit board 1, causing the displacement sensor 24 to move upward. This further indicates 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 unqualified.

[0083] If the controller does not receive the electrical signal from the micro switch 15 of the detection component A10, nor does it receive the displacement signal from the displacement sensor 24 of the detection component A10, it means 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 qualified.

[0084] At the same time, if the controller receives an electrical signal from the micro switch 15 of the detection component B11, or receives a displacement signal from the displacement sensor 24 of the detection component B11, the worker determines that the high-frequency circuit board 1 below is unqualified; if the controller does not receive an electrical signal from the micro switch 15 of the detection component B11, nor does it receive a displacement signal from the displacement sensor 24 of the detection component B11, the worker determines that the high-frequency circuit board 1 below is qualified, thereby finally completing the simultaneous detection of the width of the two high-frequency circuit boards 1 and the depth of the blind holes 2 therein;

[0085] Among them, it can be seen from steps S2~S3 that the worker only needs to 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 located at the detection positions of the two high-frequency circuit boards 1; and then control the start of the motor 9 to move the microswitch 15 toward the right end face of the high-frequency circuit board 1. 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 blind hole 2 therein, and then judging whether the detected high-frequency circuit board 1 is qualified or unqualified.

[0086] It can be seen that compared with the detection method in the workshop, this efficient detection device does not require workers to measure the width of the high-frequency circuit board 1 and the depth of the blind hole 2 therein through two processes to complete the detection of the high-frequency circuit board 1. Instead, through one process, the width of the high-frequency circuit board 1 and the depth of the blind hole 2 therein can be completed at the same time, thereby achieving the goal of completing the detection of all high-frequency circuit boards 1 in the workshop in a short time, thereby greatly improving the detection efficiency of the high-frequency circuit board 1.

[0087] S4. The specific steps for taking away unqualified or qualified products are as follows:

[0088] S41. The control motor 9 is started, and the motor 9 drives the rotating shaft 7 to rotate. 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 polished rod column 19 under the tension of the tension spring 21. At the same time, the floating plate 20 of the detection component B11 gradually moves downward along the polished rod column 19 under the tension of the tension spring 21. When the cam 8 rotates 90°, the micro switch 15 separates from the high-frequency circuit board 1, and the vertical rod 23 withdraws from the blind hole 2 of the high-frequency circuit board 1.

[0089] S42: Control the piston rod of the linear cylinder 5 to retract to the right, which drives the frame 6 to move rightward. The frame 6 drives the motor 9, the cam 8, the detection assembly A10, and the detection assembly B11 to move rightward synchronously, thereby moving the detection assembly A10 and the detection assembly B11 to their initial positions.

[0090] S43. The worker controls the piston rods of the two pressing cylinders 32 of the clamping assembly 4 to extend outward, which drives the pressing plate 33 to move outward. The worker then removes the defective or qualified products from the base 29.

[0091] S5. The worker repeats steps S1 to S4 multiple times to complete the inspection of all high-frequency circuit boards 1 in the workshop. After the inspection is completed, the worker sends the unqualified products to the rework process to repair the unqualified products, and at the same time, sends the qualified products to the subsequent processing process to undergo other processes.

[0092] Among them, from steps S1 to S5, it can be seen that this efficient detection device can simultaneously detect the width of two high-frequency circuit boards 1 and the depth of the blind holes 2 therein through the coordinated cooperation of the linear cylinder 5, motor 9, cam 8, detection component A10 and detection component B11. Therefore, it can be seen that compared with the detection method in the workshop, this efficient detection device does not require workers to detect high-frequency circuit boards 1 one by one. The number of tests performed at one time is twice the original number of tests, thereby achieving the complete detection of all high-frequency circuit boards 1 in the workshop in a short period of time, thereby further greatly improving the detection efficiency of high-frequency circuit boards 1.

[0093] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will readily be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalent features for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. An efficient detection device for detecting the width of a high-frequency circuit board and the depth of a blind hole therein, characterized by: It includes a workbench (3), on which a clamping assembly (4) for fixing two high-frequency circuit boards (1) to be tested is provided, and a linear cylinder (5) located on the right side of the clamping assembly (4) is also provided on the workbench (3), a horizontally arranged frame (6) is fixed on the action end of the piston rod of the linear cylinder (5), a rotating shaft (7) is rotatably installed in the frame (6) and between the front and rear edges thereof, a vertically arranged cam (8) is fixed on the rotating shaft (7), a motor (9) is fixed on the rear end surface of the frame (6), and the 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), both of which are used to detect the width of the high-frequency circuit board (1) and the depth of the blind hole (2) in the high-frequency circuit board (1), and the detection component A (10) and the detection component B (11) are symmetrically arranged with respect to the cam (8) in the upper and lower directions, and both of the detection component A (10) and the detection component B (11) include a guide seat (12) fixed on the left end surface of the frame (6) and a fixing plate (13) fixed between the front and rear edges of the frame (6); A horizontal rod (14) is slidably passed through the guide seat (12), and a mounting plate and a micro switch (15) are fixed in sequence at the left end of the horizontal rod (14). The spring (16) of the micro switch (15) is arranged to the left. A horizontal spring (17) is sleeved on the horizontal rod (14), and the left and right ends of the horizontal spring (17) are respectively fixed on the mounting plate and the guide seat (12). A roller (18) is rotatably mounted on the right end of the horizontal rod (14); A light rod column (19) is fixed on the top surface of the fixed plate (13), a floating plate (20) is sleeved on the light rod column (19), and a tension spring (21) is sleeved on the light 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), and the floating plate (20) extends to the left outside the frame (6), and a connecting frame (22) is fixed on the top surface of the extended end. A vertical rod (23) slides through the top wall of the connecting frame (22), and a support plate and a displacement sensor (24) are fixed to the top end of the vertical rod (23) in sequence. A vertical spring (25) is sleeved on the vertical rod (23), and the upper and lower ends of the vertical spring (25) are respectively fixed on the support plate and the connecting frame (22); A side push 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 push 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 a blind hole therein according to claim 1, characterized in that: A plurality of support legs supported on the ground are fixedly provided 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 a blind hole therein according to claim 2, characterized in that: A base (29) corresponding to the linear cylinder (5) is fixedly provided on the table surface of the workbench (3), and a cylinder body of the linear cylinder (5) is fixedly provided on the base (29).

4. The high-efficiency detection device for detecting the width of a high-frequency circuit board and the depth of a blind hole therein 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 a blind hole therein according to claim 4, characterized in that: The clamping assembly (4) includes a column fixed on the table top of the workbench (3), and a positioning seat (30) fixed on the top of the column. The top and bottom surfaces of the positioning seat (30) are both provided with a positioning stop (31) passing through the right end surface thereof. The positioning stop (31) matches the outer contour of the high-frequency circuit board (1). A clamping cylinder (32) is fixed on the top and bottom surfaces of the positioning seat (30). A pressure plate (33) located directly above the positioning stop (31) is fixed on the active end of the piston rod of the upper clamping cylinder (32).

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

7. A method for efficiently detecting the width of a high-frequency circuit board and the depth of a blind hole therein, using the device for efficiently detecting the width of a high-frequency circuit board and the depth of a blind hole therein according to claim 6, characterized in that: It includes the following steps: S1. Fix the two high-frequency circuit boards (1) to be tested. The specific operation steps are as follows: S11. The worker takes out two high-frequency circuit boards (1) to be tested, places the two high-frequency circuit boards (1) into the two positioning stoppers (31) of the base (29) of the clamping assembly (4), and holds the two high-frequency circuit boards (1) by hand. Since the positioning stoppers (31) match the outer contours of the high-frequency circuit boards (1), the positioning of the high-frequency circuit boards (1) is completed. At this time, the two high-frequency circuit boards (1) are respectively opposite to the two pressure plates (33) of the clamping assembly (4); S12, the piston rods of the two pressing cylinders (32) of the control clamping assembly (4) are retracted, and the piston rods drive the pressure plate (33) connected thereto to move toward the high-frequency circuit board (1). When the piston rods of the pressing cylinders (32) are completely retracted, the pressure plate (33) fixes the high-frequency circuit board (1) in the positioning stop (31), thereby completing the fixture fixation of the two high-frequency circuit boards (1) to be tested; S2, the piston rod of the control linear cylinder (5) extends to the left, the piston rod drives the frame (6) to move to the left, the frame (6) drives the detection component A (10) to move toward the high-frequency circuit board (1) above, and at the same time, the frame (6) also drives the detection component B (11) to move toward the high-frequency circuit board (1) below; When the piston rod of the linear cylinder (5) is fully extended, both the detection component A (10) and the detection component B (11) enter the detection station. At this time, the micro switch (15) of the detection component A (10) is opposite to the right end face of the upper high-frequency circuit board (1) on the left and right sides, and the vertical rod (23) of the detection component A (10) is opposite to the blind hole (2) in the upper high-frequency circuit board (1) on the top. At the same time, the micro switch (15) of the detection component B (11) is opposite to the right end face of the lower high-frequency circuit board (1) on the left and right sides, and the vertical rod (23) of the detection component B (11) is opposite to the blind hole (2) in the lower high-frequency circuit board (1) on the top and bottom sides. S3, the control motor (9) is started, 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 light 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 light 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 thereto 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 micro switch (15) to move leftward, the micro switch (15) causes the horizontal spring (17) to stretch leftward, and the connecting frame (22) drives the vertical rod (23) to move toward 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 an electrical signal from the micro switch (15) of the detection component A (10), it means that the spring (16) of the micro switch (15) has pressed the right end face of the upper high-frequency circuit board (1). The micro switch (15) then sends an electrical signal to the controller, indicating that the width of the upper high-frequency circuit board (1) is greater than the designed width. The worker determines that the upper high-frequency circuit board (1) is unqualified. If the controller receives a displacement signal from the displacement sensor (24) of the detection component A (10), it means 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 move upward, which further indicates 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 unqualified; If the controller does not receive the electrical signal from the micro switch (15) of the detection component A (10) and does not receive the displacement signal from the displacement sensor (24) of the detection component A (10), it means 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; At the same time, if the controller receives an electrical signal from the micro switch (15) of the detection component B (11), or receives a displacement signal from 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 an electrical signal from the micro switch (15) of the detection component B (11), or does not receive a displacement signal from 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, thereby finally completing the simultaneous detection of the width of the two high-frequency circuit boards (1) and the depth of the blind holes (2) therein; S4. The specific steps for taking away unqualified or qualified products are as follows: S41, the control motor (9) is started, 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 light 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 light rod column (19) under the pulling force of the tension spring (21); when the cam (8) rotates 90 degrees, the micro switch (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, the piston rod of the linear cylinder (5) is controlled 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, thereby moving the detection component A (10) and the detection component B (11) to the initial position; S43, the worker controls the piston rods of the two pressing cylinders (32) of the clamping assembly (4) to extend outward, and the piston rods drive the pressing plate (33) to move outward, and then the worker removes the unqualified products or qualified products on the base (29); S5. The worker repeats the steps S1 to S4 for several times, and all high-frequency circuit boards (1) in the workshop are inspected. After the inspection is completed, the worker sends the unqualified products to the rework process to repair the unqualified products, and at the same time, sends the qualified products to the subsequent processing process to be processed in other processes.

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