Capacitance detection equipment with anti-collision function

Abstract

The invention relates to the field of capacitance detection, in particular to capacitance detection equipment with an anti-collision function, which comprises a detector, an adjusting assembly, a driving assembly, a supporting block, a bearing plate, a push block and the like, an adjusting assembly for adapting to different widths of the circuit board is mounted in the detector; a driving assembly is mounted in the detector; the driving assembly is connected with a plurality of supporting blocks; a plurality of bearing plates are mounted in the detector; the driving assembly is connected with a plurality of pushing blocks, and the lower surface of each pushing block and the upper surface of the adjacent bearing plate are located on the same horizontal line. According to the device, the first driving part is controlled to drive the adjacent fixing plates and the conveying belts to move front and back, the distance between the front and back adjacent conveying belts is adjusted so as to adapt to circuit boards with different widths, the use applicability of the device is improved, manual adjustment is not needed, convenience is improved, an external light source is shielded through the isolation cover, and the use safety of the device is improved. An external light source is prevented from interfering image acquisition of the camera, and image quality is further improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of capacitance detection, in particular to a capacitance detection device with anti-collision function. BACKGROUND

[0002] Capacitors (such as electrolytic capacitors and tantalum capacitors) have polarity, that is, there is a positive electrode and a negative electrode on the capacitor. If the polarity of the capacitor is reversed after the circuit board is inserted with the capacitor, the capacitor will not work normally, resulting in failure of the circuit function. Therefore, it is necessary to detect the polarity of the capacitor on the circuit board.

[0003] When the existing capacitor polarity detection device detects the polarity of the capacitor on the circuit board, in order to improve the overall production efficiency, the conveying belt is usually in a continuous running state to ensure that the circuit board can be continuously conveyed to the detection station. When the circuit board reaches the detection station, two blocking mechanisms are used to block and limit the circuit board to be detected and the next circuit board at the same time, so that the circuit board to be detected remains stationary for detection while avoiding plate collision. However, this transmission method will cause continuous friction between the conveying belt and the blocked circuit board, causing wear of the circuit board and affecting product quality. SUMMARY

[0004] In order to overcome the shortcomings of the existing capacitor detection device that the transmission of the circuit board will cause continuous friction between the conveying belt and the blocked circuit board, causing wear of the circuit board and affecting product quality, the present application provides a capacitor detection device with anti-collision function.

[0005] The technical scheme is: a capacitor detection device with anti-collision function, comprising a detector; further comprising an adjusting assembly, a driving assembly, a supporting block, a supporting plate and a push block; the detector is provided with an adjusting assembly for adapting to different widths of the circuit board; the detector is provided with a driving assembly; the driving assembly is connected with a plurality of supporting blocks; the detector is provided with a plurality of supporting plates; the driving assembly is connected with a plurality of push blocks, and the lower surface of each push block is in the same horizontal line as the upper surface of the adjacent supporting plate.

[0006] Further, the adjusting assembly comprises a first driving member, a motor, a spline shaft and a shaft sleeve; the detector is provided with a plurality of first driving members; the detector is provided with a plurality of motors; each motor output end is fixedly connected with a spline shaft; the detector is provided with a plurality of shaft sleeves; each shaft sleeve is slidingly connected with the adjacent spline shaft, and each shaft sleeve is rotatably connected with the conveying belt in the detector for conveying the circuit board for detection.

[0007] Further, each supporting block on the right is provided in an L shape.

[0008] Further, each supporting block on the right is provided in an L shape. Further, each supporting block on the right is provided in an L shape.

[0009] Further, the isolation cover and the ring-shaped lamp are further included; the isolation cover is installed in the detector; and the ring-shaped lamp is fixed to the lower side of the isolation cover.

[0010] Further, the suction block is further included; the isolation cover is in a hollow structure and connected with an external pump; a plurality of suction holes are arranged on the isolation cover; a plurality of suction blocks are installed in the detector and communicated with the isolation cover through telescopic pipes; and a plurality of through holes for sucking dust are arranged on each suction block.

[0011] Further, the circulation cavity is arranged on the isolation cover.

[0012] Further, the upper surface of each supporting plate is a smooth plane.

[0013] Further, the connecting pipe, the folding block, the alignment block and the spring telescopic rod are further included; a plurality of connecting pipes are communicated with each suction block; a folding block is communicated with each connecting pipe; each folding block is made of deformable rubber material; an alignment block for adjusting the position of the circuit board is fixed to each folding block; the lower surface of each alignment block and the upper surface of the adjacent supporting plate are located on the same horizontal line; and a spring telescopic rod is fixed in each folding block, and the telescopic end of the spring telescopic rod is fixed to the alignment block.

[0014] Further, the surface of each alignment block is made of flexible rubber material.

[0015] The beneficial effects are that the present application realizes the forward and backward movement of the adjacent fixed plate and the conveying belt by controlling the first driving member, adjusts the distance between the two adjacent conveying belts in front and back, adapts to circuit boards of different widths, improves the use applicability of the device, and does not need manual adjustment, improving the convenience;

[0016] Through the cooperation of the conveying belt, the supporting block, the supporting plate and the push block, the transmission mode of the existing circuit board is changed, which not only effectively avoids the friction between the conveying belt and the circuit board, prevents the abrasion of the circuit board, and avoids the collision between adjacent circuit boards, but also saves the waiting time of the next circuit board to be detected, the overall transmission process is very coherent, and the detection efficiency of the detector is improved;

[0017] The isolation cover blocks the external light source, avoids the interference of the external light source on the image acquisition of the camera, and further improves the image quality;

[0018] The dust particles adhered to the circuit board are adsorbed through the suction holes and the through holes, so as to reduce the content of the dust adhered to the circuit board to the greatest extent, improve the image definition of the camera, and further improve the detection accuracy of the detector and reduce the false detection rate;

[0019] The heat generated by the ring-shaped lamp and the camera is guided and discharged to the outside through the flowing air current, so that the heat dissipation effect of the camera is improved, and the temperature of the camera is prevented from being too high to affect the image acquisition quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structural schematic view of the capacitive detection device with the anti-collision function of the application;

[0021] Figure 2 It is a three-dimensional structural schematic view of the fixed block and the isolation cover combination of the application;

[0022] Figure 3 It is a sectional view of the console and the fixed block combination of the application;

[0023] Figure 4 It is a three-dimensional structural schematic view of the adjusting assembly of the application, wherein the perspective view is from the top;

[0024] Figure 5 It is a three-dimensional structural schematic view of the supporting block, the supporting plate and the push block combination of the application;

[0025] Figure 6 It is a three-dimensional structural schematic view of the isolation cover and the ring-shaped lamp combination of the application, wherein the perspective view is from the bottom;

[0026] Figure 7 It is a sectional view of the isolation cover of the application;

[0027] Figure 8 It is a three-dimensional structural schematic view of the conveying belt, the supporting block and the supporting plate combination of the application;

[0028] Figure 9 It is a three-dimensional structural schematic view of the connecting pipe, the folding block and the alignment block combination of the application;

[0029] Figure 10 It is a three-dimensional structural schematic view of the alignment block and the spring telescopic rod combination of the application.

[0030] Drawing reference: 1 - console, 2 - fixed block, 3 - fixed plate, 3001 - movable groove, 4 - conveying belt, 5 - camera, 6 - supporting block, 6001 - extrusion rod, 7 - supporting plate, 8 - push block, 9 - circuit board, 101 - first driving part, 102 - motor, 103 - spline shaft, 104 - shaft sleeve, 201 - second driving part, 202 - first sliding rail, 203 - first electric sliding block, 301 - second sliding rail, 302 - second electric sliding block, 303 - connecting plate, 401 - isolation cover, 40101 - suction hole, 40102 - flow-through cavity, 402 - ring-shaped lamp, 403 - suction block, 40301 - through hole, 501 - connecting pipe, 502 - folding block, 503 - alignment block, 504 - spring telescopic rod. DETAILED DESCRIPTION

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] Example 1

[0033] A capacitance detection device with anti-collision function, such as Figures 1-8 As shown, the device includes a detector; the detector includes a control console 1, a fixed block 2, a fixed plate 3, a conveyor belt 4, a camera 5, and a lifting assembly; the fixed block 2 is fixedly connected to the control console 1; two symmetrical fixed plates 3 are movably mounted on the fixed block 2; each fixed plate 3 is provided with a movable groove 3001; two vertically staggered conveyor belts 4 are installed on each fixed plate 3; the camera 5 is installed inside the control console 1; the lifting assembly is installed inside the control console 1, and the camera 5 is connected to the lifting assembly. The lifting assembly drives the camera 5 to move up and down, thereby adjusting the detection distance of the camera 5 according to the height of the circuit board 9.

[0034] It also includes an adjustment component, a drive component, a support block 6, a support plate 7, and a push block 8; the adjustment component is installed on the fixed block 2, the fixed plate 3, and the conveyor belt 4; the drive component is installed on the fixed plate 3; the drive component is connected to four support blocks 6, and the support blocks 6 are moved up and down by the drive component to lift the circuit board 9; each fixed plate 3 is rotatably connected to the support plate 7 by a torsion spring, and the support plate 7 is located in the movable groove 3001; the drive component is connected to two push blocks 8 that are symmetrically arranged front and back, and the lower surface of each push block 8 is at the same horizontal line as the upper surface of the adjacent support plate 7. The push block 8 is moved left and right by the drive component, thereby pushing the circuit board 9 that is located on the support plate 7 and has been inspected to the conveyor belt 4 above and transferring it out of the control console 1.

[0035] The adjustment assembly includes a first drive member 101, a motor 102, a splined shaft 103, and bushings 104. Four first drive members 101 arranged in a rectangular pattern are fixedly connected inside the fixing block 2, and each first drive member 101 is an electric push rod. Each fixing plate 3 is fixedly connected to the output ends of two adjacent first drive members 101. Four motors 102 are fixedly connected inside the fixing block 2. A splined shaft 103 is fixedly connected to the output end of each motor 102. Two bushings 104 are fixedly connected to each fixing plate 3. Each bushing 104 is slidably connected to an adjacent splined shaft 103 and rotatably connected to an adjacent conveyor belt 4. The first drive member 101 drives the adjacent fixing plates 3 and conveyor belts 4 to move back and forth, thereby changing the distance between two adjacent conveyor belts 4 to accommodate circuit boards 9 of different widths.

[0036] The driving assembly comprises second driving members 201, first sliding rails 202 and first electric sliding blocks 203; two left-right symmetrical second driving members 201 are fixedly connected to each fixed plate 3, and the second driving members 201 are electric push rods; each supporting block 6 is fixedly connected to the output end of the adjacent second driving member 201, and the supporting block 6 is driven by the second driving member 201 to move up and down; the first sliding rail 202 is fixedly connected to each fixed plate 3; the first electric sliding block 203 is slidingly connected to each first sliding rail 202, and each push block 8 is fixedly connected to the adjacent first electric sliding block 203, and the adjacent push block 8 is driven by the first electric sliding block 203 to move left and right.

[0037] The lifting assembly comprises second sliding rails 301, second electric sliding blocks 302 and a connecting plate 303; two left-right symmetrical second sliding rails 301 are fixedly connected in the console 1; the second electric sliding block 302 is slidingly connected to each second sliding rail 301; the connecting plate 303 is fixedly connected to the two second electric sliding blocks 302, and the camera 5 is fixedly connected to the connecting plate 303, and the camera 5 and the connecting plate 303 are driven by the second electric sliding block 302 to move up and down, so as to adjust the detection distance of the camera 5.

[0038] Each supporting block 6 located on the right is arranged in an L shape, used for blocking the circuit board 9.

[0039] Each supporting block 6 located on the right is slidingly connected to the fixed plate 3 through a torsional spring.

[0040] Further comprising an isolation cover 401 and a ring-shaped lamp tube 402; the isolation cover 401 is fixedly connected to the connecting plate 303, and the camera 5 is located in the isolation cover 401; the ring-shaped lamp tube 402 is fixedly connected to the lower side of the isolation cover 401.

[0041] Further comprising a suction block 403; the isolation cover 401 is arranged in a hollow structure, and the isolation cover 401 is connected with an external pump; a plurality of suction holes 40101 are arranged on the isolation cover 401; the suction block 403 is fixedly connected to each fixed plate 3, and each suction block 403 is in communication with the isolation cover 401 through an extension tube; a plurality of through holes 40301 are arranged on each suction block 403.

[0042] The isolation cover 401 is provided with a flow cavity 40102, and the flow cavity 40102 of the isolation cover 401 is in communication with a heating part of the camera 5.

[0043] The upper surface of each supporting plate 7 is arranged as a smooth plane, so as to reduce the friction between the supporting plate 7 and the circuit board 9, and effectively reduce the abrasion of the circuit board 9.

[0044] The working steps of the embodiment are as follows:

[0045] Firstly, according to the width of the circuit board 9 to be detected, the first driving member 101 drives the adjacent fixed plates 3 and the conveying belts 4 to move forward and backward, so as to adjust the distance between the two adjacent conveying belts 4 in front and back, so as to adapt to circuit boards 9 of different widths, improve the use applicability of the device, and improve the convenience without manual adjustment.

[0046] When detecting, the operator starts the motor 102 through the console 1, so that the conveying belt 4 starts to run. The circuit board 9 with the inserted capacitor is placed on the left conveying belt 4 at a certain time interval through the automatic feeding mechanism of the peripheral device, so that the front and back ends of the circuit board 9 are respectively supported on the two adjacent conveying belts 4 in front and back, and then conveyed to the lower side of the camera 5 through the left conveying belt 4.

[0047] In the process of transmitting the circuit board 9 to the lower side of the camera 5, the right end of the circuit board 9 to be detected will gradually approach the right supporting block 6. Since the right supporting block 6 is L-shaped, the circuit board 9 will be blocked and limited by the right supporting block 6. The L-shaped supporting block 6 blocks and limits the circuit board 9, so as to ensure that each circuit board 9 is located directly below the camera 5, and improve the detection accuracy. At this time, the four supporting blocks 6 are located below the circuit board 9, and then the second driving member 201 drives the supporting block 6 to move upward, and the four supporting blocks 6 lift the lower side of the circuit board 9 upward, so as to drive the circuit board 9 to move upward.

[0048] With the upward movement of the four supporting blocks 6 driving the circuit board 9, since the height of the end of the extrusion rod 6001 on the L-shaped supporting block 6 is higher than the height of the circuit board 9, the extrusion rod 6001 on the L-shaped supporting block 6 will first contact the upper supporting plate 7 and extrude the supporting plate 7, so as to avoid the circuit board 9 directly extruding the lower side of the supporting plate 7 and causing wear to the circuit board 9. The supporting plate 7 will rotate upward in the movable groove 3001 until the extrusion rod 6001 and the circuit board 9 pass through the supporting plate 7. The supporting plate 7 will be restored to the initial state by the torsional spring force. At this time, the second driving member 201 drives the circuit board 9 to move downward again. The front and back ends of the circuit board 9 will gradually rest on the adjacent supporting plate 7, and the second driving member 201 will gradually separate from the circuit board 9 and continue to move downward to the original position.

[0049] It should be noted that before detection, the second electric sliding block 302 drives the connecting plate 303 and the camera 5 to move up and down, adjusts the detection distance of the camera 5 according to the height of the circuit board 9, and then collects the image of the capacitor polarity on the circuit board 9 on the supporting plate 7 through the camera 5. After processing by the console 1, the collected image is compared with the pre-stored standard template, so as to judge whether the capacitor on the circuit board 9 is installed incorrectly. At the same time, the next circuit board 9 to be detected reaches directly below the camera 5, the second driving member 201 drives the supporting block 6 and the circuit board 9 to move upwards, in this process, the camera 5 completes the detection of the circuit board 9 on the supporting plate 7, then the first electric sliding block 203 drives the push block 8 to move to the right, so as to push the circuit board 9 on the supporting plate 7 to the right, until the detected circuit board 9 is placed on the right conveying belt 4, and the detected circuit board 9 is transmitted to the next process through the right conveying belt 4, then after the first electric sliding block 203 returns to the initial position, the second driving member 201 drives the supporting block 6 and the next circuit board 9 to be detected to gradually approach the supporting plate 7, then the above operation is repeated, so as to complete the detection of the capacitor polarity on the circuit board 9. When the console 1 judges that there is a circuit board 9 with incorrect capacitor polarity, manual intervention is needed to take out the unqualified product from the detector.

[0050] Compared with the transmission mode of blocking and limiting the circuit board 9 on the conveying belt 4 by the blocking mechanism, the transmission mode of the present application not only effectively avoids the friction between the conveying belt 4 and the circuit board 9, prevents the abrasion of the circuit board 9, and avoids the collision between adjacent circuit boards 9, but also saves the waiting time of the next circuit board 9 to be detected, the overall transmission process is very coherent, and the detection efficiency of the detector is improved.

[0051] When the camera 5 detects the circuit board 9 below, the ring-shaped lamp tube 402 illuminates the circuit board 9 below, so that the light source converges on the circuit board 9 below, thereby improving the recognition effect of the camera 5 on the capacitor polarity mark on the circuit board 9, improving the image quality of the camera 5, and at the same time, the external light source is shielded by the isolation cover 401, so as to avoid the interference of the external light source with the image acquisition of the camera 5, and further improve the image quality.

[0052] During storage of the circuit board 9, dust may adhere to the circuit board 9. If the circuit board 9 is not cleaned during manual capacitor insertion, the dust particles will block the polarity mark of the capacitor on the circuit board 9, so that the console 1 cannot clearly identify the image collected by the camera 5, thereby increasing the false detection rate of the detector.

[0053] To solve the above problems, the peripheral pump is started to suck air outward, and the airflow below the isolation cover 401 is communicated to the outside through the suction hole 40101 of the isolation cover 401 and the through hole 40301 of the suction block 403. The circuit board 9 is gradually conveyed to the lower part of the isolation cover 401 and the suction block 403, and the dust particles adhered to the circuit board 9 are gradually separated from the components on the circuit board 9 under the suction of the suction hole 40101 and the through hole 40301, and finally are carried to the outside with the airflow, thereby greatly reducing the dust content adhered to the circuit board 9, improving the image clarity of the camera 5, and further improving the detection accuracy of the detector and reducing the false detection rate.

[0054] In addition, under the illumination of the annular lamp tube 402, the annular lamp tube 402 will gradually heat up, and since the camera 5 is located in the middle of the isolation cover 401, it will affect the heat dissipation of the camera 5. To solve the above problem, the airflow is guided into the flow cavity 40102 through the suction hole 40101 and flows from bottom to top inside the isolation cover 401, and finally flows out to the outside after passing through the heating part of the camera 5. The flowing airflow guides the heat generated by the annular lamp tube 402 and the camera 5 to the outside, thereby improving the heat dissipation effect of the camera 5 and avoiding the influence of high temperature of the camera 5 on the image acquisition quality.

[0055] Embodiment 2

[0056] Based on embodiment 1, as shown in Figures 8-10 two left and right symmetrical connecting pipes 501 are communicated on each suction block 403. The folding block 502 is communicated on each connecting pipe 501, and each folding block 502 is made of deformable rubber material. The alignment block 503 is fixed on each folding block 502, and each alignment block 503 is located in the movable groove 3001 of the adjacent fixed plate 3. The alignment block 503 slides in the movable groove 3001. The lower surface of each alignment block 503 and the upper surface of the adjacent supporting plate 7 are located on the same horizontal line. The spring telescopic rod 504 is fixed in each folding block 502, and the telescopic end of the spring telescopic rod 504 is fixed with the alignment block 503.

[0057] The surface of each alignment block 503 is made of flexible rubber material.

[0058] The working principle of the embodiment is as follows:

[0059] When the camera 5 performs image acquisition on the circuit board 9, the placement position of the circuit board 9 is very important. Incorrect placement position will cause the position of the components in the image to change, making it difficult for the preset template matching to accurately identify the polarity mark of the capacitor, thereby reducing the detection accuracy and increasing the uncertainty and error of the detection result.

[0060] To avoid the above situation, when the circuit board 9 is lifted up by the supporting block 6 and placed on the supporting plate 7, the camera 5 is about to be detected, the external pump is turned off. It should be noted that the external pump is always started during the process of moving the circuit board 9 to contact with the supporting block 6 and lifting the circuit board 9 up by the supporting block 6 and placing it on the supporting plate 7, and the dust on the circuit board 9 is cleaned through the suction hole 40101 and the through hole 40301, while the external pump is started, the folding block 502 in communication with the suction block 403 reduces in volume, and the alignment block 503 is moved to the left and right sides of the movable groove 3001 respectively, and the spring telescopic rod 504 is extruded by the alignment block 503 to be in a contracted state, that is, the initial state of the folding block 502 is in a contracted state, and when the circuit board 9 is lifted up by the supporting block 6 and placed on the supporting plate 7, the external pump is turned off, at this time the folding block 502 is no longer affected by the suction force, the spring telescopic rod 504 drives the alignment block 503 to rebound to one side of the supporting plate 7 by the elastic force, and the circuit board 9 placed on the supporting plate 7 is extruded, so as to adjust the placement position of the circuit board 9. The purpose of adjustment is that due to the mechanical vibration force generated when the conveying belt 4 runs, the external automatic feeding mechanism cannot guarantee that the circuit board 9 is stably placed when it is grabbed and placed, and the placement position of the circuit board 9 will be offset, so that the placement position of the circuit board 9 is adjusted by the alignment block 503 to improve the detection accuracy. After the image acquisition of the camera 5 is completed, the external pump is started again, the folding block 502 drives the alignment block 503 to return to the initial state by the suction force, and the above operation is repeated until the next circuit board 9 is about to be detected.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and not to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced by equivalents without departing from the essence and scope of the technical solutions of the present application.

Claims

1. A capacitance detection device with anti-collision function, comprising a detector; characterized in that, It also includes an adjustment component, a drive component, a support block (6), a support plate (7), and a push block (8); the tester is equipped with an adjustment component for adapting to different widths of the circuit board (9); the tester is equipped with a drive component; the drive component is connected to several support blocks (6); the tester is equipped with several support plates (7); the drive component is connected to several push blocks (8), and the lower surface of each push block (8) is at the same horizontal level as the upper surface of the adjacent support plate (7).

2. The capacitance detection device with anti-collision function according to claim 1, characterized in that, The adjustment assembly includes a first drive unit (101), a motor (102), a spline shaft (103), and a bushing (104); several first drive units (101) are installed inside the detector; several motors (102) are installed inside the detector; a spline shaft (103) is fixedly connected to the output end of each motor (102); several bushings (104) are provided on the detector; each bushing (104) is slidably connected to the adjacent spline shaft (103), and each bushing (104) is rotatably connected to the conveyor belt inside the detector used for transporting the circuit board (9) for testing.

3. The capacitance detection device with anti-collision function according to claim 1, characterized in that, Each of the right-hand blocks (6) is set to an L-shape.

4. The capacitance detection device with anti-collision function according to claim 1, characterized in that, Each support block (6) on the right is rotatably connected to a pressing rod (6001) by a torsion spring, and the end of the pressing rod (6001) is higher than the height of the circuit board (9).

5. A capacitance detection device with anti-collision function according to claim 1, characterized in that, It also includes an isolation cover (401) and a ring lamp (402); the detector is equipped with an isolation cover (401) for isolating external light sources; a ring lamp (402) is fixedly connected to the lower side of the isolation cover (401).

6. A capacitance detection device with anti-collision function according to claim 5, characterized in that, It also includes a suction block (403); the isolation cover (401) is set as a hollow structure and the isolation cover (401) is connected to an external pump; the isolation cover (401) is provided with several suction holes (40101); the detector is equipped with several suction blocks (403), and each suction block (403) is connected to the isolation cover (401) through a telescopic tube; each suction block (403) is provided with several through holes (40301) for suctioning dust.

7. A capacitance detection device with anti-collision function according to claim 6, characterized in that, The isolation cover (401) is provided with a flow cavity (40102).

8. A capacitance detection device with anti-collision function according to claim 1, characterized in that, The upper surface of each support plate (7) is set to a smooth plane.

9. A capacitance detection device with anti-collision function according to claim 6, characterized in that, It also includes a connecting tube (501), a folding block (502), an alignment block (503), and a spring telescopic rod (504); each suction block (403) is connected to several connecting tubes (501); each connecting tube (501) is connected to a folding block (502), and each folding block (502) is made of deformable rubber; each folding block (502) is fixedly connected to an alignment block (503) for adjusting the detection position of the circuit board (9); the lower surface of each alignment block (503) and the upper surface of the adjacent support plate (7) are on the same horizontal line; each folding block (502) is fixedly connected to a spring telescopic rod (504), and the telescopic end of the spring telescopic rod (504) is fixedly connected to the alignment block (503).

10. A capacitance detection device with anti-collision function according to claim 9, characterized in that, Each alignment block (503) has a surface made of flexible rubber.

Images