A coating thickness detection device

Abstract

This invention discloses a coating thickness detection device, relating to the field of thickness detection technology. The device includes a base with a control panel mounted on one side of its top surface and a clamping mechanism on the other side. A thickness detection mechanism is positioned in the middle of the top surface of the base. The thickness detection mechanism automatically collects array points on the surface of the sample under test by moving. The control panel obtains the array point thickness based on these points and generates an average thickness of the sample surface based on the array point thickness. Because the thickness detection mechanism automatically collects the array point thickness on the sample, it significantly increases the efficiency of collecting the coating thickness on the sample. Then, the average thickness of the sample surface can be generated based on the array point thickness, ensuring the uniformity of the coating on the sample.

Description

Technical Field

[0001] This invention relates to the field of thickness detection technology, and more specifically to a coating thickness detection device. Background Technology

[0002] When preparing rubber counterweights, a DLC (diamond-like carbon) coating needs to be applied to the surface of the rubber counterweight mold. The DLC coating can improve the wear resistance of the rubber counterweight mold surface and increase the life of the rubber counterweight mold. Therefore, it is necessary to regularly check the thickness of the DLC coating of the rubber counterweight mold to ensure the uniformity and integrity of the DLC coating.

[0003] Existing coating thickness detection devices, such as the one disclosed in Chinese patent application CN1 10567415A, collect the coating thickness at one sampling point at a time when detecting the coating thickness. Therefore, it is necessary to control the movement of the coating thickness detection device on the coating surface to collect the thickness at different sampling points to ensure the accuracy of the thickness detection. However, moving and collecting on the coating surface requires continuous control of the thickness detection device to collect at different positions on the coating surface, which reduces the efficiency of thickness detection. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems, the purpose of this invention is to provide a coating thickness detection device to solve the problem that in the prior art, when collecting the thickness of the coating surface, the coating thickness detection device needs to be continuously controlled to collect data at different positions on the coating surface, which leads to low coating detection efficiency.

[0005] The objective of this invention can be achieved through the following technical solutions:

[0006] Specifically, a coating thickness detection device is provided, including a device base with a control panel installed on one side of its top surface, a clamping mechanism on the other side of the top surface of the device base, and a thickness detection mechanism in the middle of the top surface of the device base. The thickness detection mechanism automatically collects the thickness of the array points by moving on the surface of the sample to be tested, and generates the average thickness of the surface of the sample to be tested based on the thickness of the array points.

[0007] As a further aspect of the present invention: the thickness detection mechanism includes a lifting rod, a first track is fixedly connected to the top of the lifting rod, a second track is provided at the bottom of the first track, a movable seat is provided at the bottom of the first track, and a detection probe is provided at the bottom of the movable seat.

[0008] As a further aspect of the present invention: the first track includes a transverse track, with first limiting tracks provided on both sides of the bottom surface of the transverse track, and a first drive shaft provided at the middle position of the bottom surface of the transverse track, and a plurality of straight first protrusions provided between the first limiting tracks and the first drive shaft.

[0009] As a further aspect of the present invention: the second track includes a transverse slider, the bottom surface of which is fixedly connected to a longitudinal track, the interior of which is fitted with a transverse ball bearing that matches the first drive shaft, the sides of which are fitted with pulley sets that match the first limiting track, and a transverse groove is provided on one side of the top surface of the transverse slider near the first protrusion, and a first hydraulic drive component is installed in the middle of the interior of the transverse groove.

[0010] As a further aspect of the present invention: a second drive shaft is installed at the bottom center of the longitudinal track, and a plurality of second protrusions are installed on both sides of the bottom of the longitudinal track.

[0011] As a further aspect of the present invention: the movable seat includes a power transmission box, the top surface of the power transmission box is rotatably connected to a longitudinal slider, the longitudinal slider has longitudinal grooves on both sides, a second hydraulic drive component is installed at the middle position of the inner side of the longitudinal groove, and a longitudinal ball bearing that matches the second drive shaft is installed at the middle position of the inner side of the longitudinal slider.

[0012] As a further aspect of the present invention: a fixed oil rod is fixedly connected inside the power transmission box, and a sliding oil rod is connected to the bottom end of the fixed oil rod through a hose. A sliding limit rod is connected to one side of the sliding oil rod.

[0013] As a further aspect of the present invention: a return spring is fixedly connected to the top of the detection probe, and a pull rod is fixedly connected to the top of the detection probe corresponding to the inner position of the return spring. A push piston is fixedly connected to the top of the pull rod, and the push piston is engaged with the inner cavity of the sliding oil rod.

[0014] As a further aspect of the present invention: a drive motor is installed on the inner top surface of the power transmission box, a drive worm is installed on the output shaft of the drive motor, a drive worm wheel is engaged on one side of the drive worm, and the top surface of the drive worm wheel passes through the power transmission box and is fixedly connected to the bottom surface of the longitudinal slider.

[0015] As a further aspect of the present invention: a buffer frame is fixedly connected to the bottom surface of the power transmission box, and a slidable buffer seat is provided on the inner side of the buffer frame. The detection probe is located inside the buffer seat and slides synchronously with the buffer seat.

[0016] The beneficial effects of this invention are:

[0017] In this invention, since the thickness detection mechanism automatically collects the thickness of the array points on the sample to be tested, the efficiency of collecting the thickness of the coating on the sample to be tested is greatly increased. Then, the average thickness of the sample surface can be generated based on the array point thickness, ensuring the uniformity of the coating on the sample to be tested.

[0018] In this invention, since the movement of the power transmission box is continuous, when the bottom of the detection probe contacts the coating on the top surface of the sample to be tested, the detection probe will remain on the top surface of the sample due to friction, while the power transmission box continues to move. After the detection probe collects the thickness of the coating on the top surface of the sample, the detection probe will automatically rise and detach from the top surface of the sample. At this time, under the action of the elastic connecting rod, the buffer seat will automatically return to its initial position on the buffer slide rail. This ensures that the detection probe can remain for a sufficient time when detecting the thickness of the coating on the top surface of the sample. On the one hand, this ensures the accuracy of the coating thickness collection by the detection probe, and on the other hand, it prevents the detection probe from rubbing against the surface of the coating and causing damage to the coating. Furthermore, in the process quality control of the thickness measurement stage, this solution can directly use multi-point thickness data to objectively and quantitatively evaluate the coating uniformity, thereby improving inspection consistency and reducing the re-inspection rate. Attached Figure Description

[0019] The invention will now be further described with reference to the accompanying drawings.

[0020] Figure 1 This is a schematic diagram of the structure of a coating thickness detection device according to the present invention;

[0021] Figure 2 This is a schematic diagram of the structure of the coating thickness detection device of the present invention during detection;

[0022] Figure 3 This is an isometric view of a coating thickness detection device according to the present invention;

[0023] Figure 4 This is a schematic diagram of the thickness detection mechanism of the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the first track of the present invention;

[0025] Figure 6 This is a partial structural schematic diagram of the second track of the present invention;

[0026] Figure 7 This is a partial bottom view of the second track of the present invention;

[0027] Figure 8 This is a schematic diagram of the structure of the movable base of the present invention;

[0028] Figure 9This is a schematic diagram of the internal structure of the movable base of the present invention;

[0029] Figure 10 This is a schematic diagram of the structure of the buffer seat of the present invention;

[0030] Figure 11 This is a schematic diagram of the detection probe of the present invention;

[0031] Figure 12 This is an internal bottom view of the power transmission box of the present invention;

[0032] Figure 13 This is a schematic diagram of the structure of the first hydraulic drive component of the present invention;

[0033] Figure 14 This is a schematic diagram of the structure of the second hydraulic drive component of the present invention.

[0034] Explanation of reference numerals in the attached drawings: 1. Device base; 2. Control panel; 3. Clamping mechanism; 31. Clamping support plate; 32. Screw; 33. Clamping limiting plate; 4. Thickness detection mechanism; 41. Lifting rod; 42. First track; 421. Transverse track; 422. First limiting track; 423. First drive shaft; 424. First protrusion; 43. Second track; 431. Transverse slider; 432. Longitudinal track; 433. Transverse ball bearing; 434. Pulley block; 435. Transverse slide groove; 436. First hydraulic drive component; 4361. First piston; 4362. First arc-shaped protrusion; 4363. First spring; 437. Second drive shaft; 438. Second protrusion; 44. Moving seat; 441. Power transmission box; 4411. Fixed hydraulic rod; 4412. Sliding hydraulic rod; 4413. Sliding limit rod; 4414. Drive motor; 4415. Drive worm gear; 4416. Drive worm wheel; 442. Longitudinal slider; 443. Longitudinal slide groove; 444. Second hydraulic drive component; 4441. Second piston; 4442. Second arc-shaped protrusion; 4443. Second spring; 445. Longitudinal ball bearing; 446. Buffer frame; 4461. Elastic connecting rod; 4462. Buffer slide rail; 447. Buffer seat; 4471. Buffer round hole; 4472. Buffer slide groove; 45. Detection probe; 451. Return spring; 452. Pull rod; 453. Push piston; 5. Sample to be tested. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] As one embodiment of the present invention, such as Figures 1-14 As shown, a coating thickness detection device is disclosed, including a base 1 with a control panel 2 mounted on one side of its top surface. The control panel 2 can integrate control buttons, a display screen, and an eddy current thickness gauge. The specific positions of the control buttons, display screen, and eddy current thickness gauge can be adaptively adjusted by those skilled in the art based on the size of the control panel 2. Since the eddy current thickness gauge already includes buttons and a display screen, the control panel 2 can also be replaced by the eddy current thickness gauge. A clamping mechanism 3 is provided on the other side of the top surface of the base 1, and a thickness detection mechanism 4 is provided in the middle of the top surface of the base 1. The thickness detection mechanism 4 moves on the surface of the sample 5 to be measured, such as... Figure 1 As shown, under normal circumstances, the detection surface of the sample 5 to be tested faces the thickness detection mechanism 4, and the thickness detection mechanism 4 moves along the detection surface. That is, when the thickness detection mechanism 4 moves along the surface of the sample 5 to be tested, it automatically collects the array point thickness. The array point thickness refers to the coating thickness at different positions on the surface of the sample 5 to be tested. The average thickness of the surface of the sample 5 to be tested is generated based on the array point thickness. The coating thickness of the sample 5 to be tested calculated by the array point thickness is more accurate. When testing the coating of the rubber counterweight mold, the rubber counterweight mold can be fixed on the device base 1 by the clamping mechanism 3. The coating of the rubber counterweight mold is generally a DLC coating (diamond-like carbon film), which can be detected by the thickness detection mechanism 4. The thickness of the DLC coating on the rubber counterweight mold is measured to ensure the uniformity of the coating thickness and the integrity of the surface. This prevents the substrate of the rubber counterweight mold from being exposed, which would accelerate the corrosion of the mold. The thickness detection mechanism 4 collects the thickness of the DLC coating on the rubber counterweight mold through eddy currents. Specifically, an electromagnetic field is generated in the probe coil by a high-frequency AC signal. When the probe approaches the rubber counterweight mold, eddy currents are formed in the mold. The closer the probe is to the conductive substrate, the larger the eddy currents and the greater the reflection impedance. This feedback action represents the distance between the probe and the rubber counterweight mold, which is the thickness of the non-conductive coating (DLC coating) on ​​the rubber counterweight mold.

[0037] It should be noted that the clamping mechanism 3 includes a clamping support plate 31. A screw 32 is mounted on the center of the clamping support plate 31 via a rotating shaft. A clamping limiting plate 33 is mounted on the outside of the screw 32. A nut that cooperates with the screw 32 is installed inside the clamping limiting plate 33 near the screw 32. By rotating the screw 32, the clamping limiting plate 33 can move on the top surface of the clamping support plate 31 in cooperation with the nut installed inside the clamping limiting plate 33. When the sample to be tested 5 is placed on the top surface of the clamping support plate 31, the screw 32 can be rotated. The rotation of the screw 32 can be done electrically or manually, and the specific method can be adapted by those skilled in the art according to the clamping force of the sample to be tested 5. After the sample to be tested 5 is fixed on the top surface of the clamping support plate 31 by the clamping limiting plate 33, the thickness of the coating on the sample to be tested can be collected by the thickness detection mechanism 4.

[0038] Specifically, the thickness detection mechanism 4 moves across the sample 5 to collect the coating thickness. During the movement, the thickness detection mechanism 4 automatically collects the thickness of the array points on the sample 5. It should be noted that the array point thickness refers to the thickness of several detection points collected at equal intervals on the sample 5. Since the thickness detection mechanism 4 collects automatically, it greatly increases the efficiency of collecting the coating thickness on the sample 5. Then, the average thickness of the surface of the sample 5 can be generated based on the array point thickness. Specifically, the variance of the array point thickness is calculated, and the uniformity of the coating thickness on the sample 5 is judged based on the variance. If the variance of the array point thickness is too large, it indicates that the coating thickness on the sample 5 is not uniform enough. Those skilled in the art can ensure the uniformity of the coating on the sample 5 by polishing or recoating the sample 5.

[0039] A Cartesian coordinate system can also be established based on the array point positions collected by the thickness detection mechanism 4 on the sample 5 to be tested. Then, a thickness threshold of the coating is preset. If the thickness of a certain collection point in the array point thickness is less than the thickness threshold, the collection point can be marked, which facilitates the precise maintenance of the coating on the sample 5 to be tested and improves the maintenance efficiency of the coating on the sample 5 to be tested.

[0040] As one embodiment of the present invention, such as Figures 1-4As shown, the thickness detection mechanism 4 includes a lifting rod 41. A hydraulic cylinder is installed on the top surface of the device base 1 near the lifting rod 41. The top of the hydraulic cylinder is fixedly connected to the lifting rod 41 via a hydraulic rod. The height of the first track 42 can be controlled by the hydraulic cylinder in conjunction with the lifting rod 41. The top of the lifting rod 41 is fixedly connected to the first track 42, which is arranged laterally along the top surface of the device base 1. A second track 43 is arranged at the bottom of the first track 42, which is arranged longitudinally along the top surface of the device base 1. A movable seat 44 is arranged at the bottom of the first track 42, and a detection probe 45 is arranged at the bottom of the movable seat 44. Through the cooperation of the lifting rod 41, the first track 42, and the second track 43, the position control of the movable seat 44 in the lateral, longitudinal, and vertical directions can be achieved. This ensures that the movable seat 44 can move the detection probe 45 to any position above the clamping mechanism 3, so that the detection probe 45 can collect the array point thickness of the coating on the test sample 5 of different specifications.

[0041] As one embodiment of the present invention, such as Figure 5 As shown, the first track 42 includes a transverse track 421. First limiting tracks 422 are provided on both sides of the bottom surface of the transverse track 421. A first drive shaft 423 is provided in the middle of the bottom surface of the transverse track 421. Several linear first protrusions 424 are provided between the first limiting tracks 422 and the first drive shaft 423. It should be noted that bearing seats are installed at both ends of the bottom surface of the transverse track 421, and the first drive shaft 423 is rotatably installed on the bottom surface of the transverse track 421 through the bearing seats. An electric motor is bolted to the top surface of the transverse track 421. The output shaft of the electric motor is poweredly connected to the first drive shaft 423 through gears or other transmission mechanisms. The specific connection method can be adapted by those skilled in the art according to the spatial position of the transverse track 421 and the first drive shaft 423, ensuring that the power of the electric motor output shaft can be transmitted to the first drive shaft 423. In use, the electric motor can be turned on so that the output shaft of the electric motor can transmit power to the first drive shaft 423, driving the first drive shaft 423 to rotate.

[0042] As one embodiment of the present invention, such as Figure 5 and Figure 6As shown, the second track 43 includes a transverse slider 431, with a longitudinal track 432 fixedly connected to the bottom surface of the transverse slider 431. A transverse ball bearing 433, which matches the first drive shaft 423, is installed inside the transverse slider 431. Pulley sets 434, which match the first limiting track 422, are installed on both sides of the transverse slider 431. A transverse groove 435 is formed on one side of the top surface of the transverse slider 431 near the first protrusion 424. A first hydraulic drive component 436 is installed in the middle of the transverse groove 435. It should be noted that, because the pulley sets 434 on both sides of the transverse slider 431 are connected to the bottom of the transverse track 421... The first limiting track 422 of the horizontal slider 431 is engaged with the first limiting track 422, so the horizontal slider 431 can move on the bottom surface of the horizontal track 421 through the cooperation of the pulley group 434 and the first limiting track 422. Specifically, it moves horizontally. The horizontal ball bearing 433 installed inside the horizontal slider 431 is engaged with the first drive shaft 423. So when the motor is turned on, the output shaft of the motor will drive the first drive shaft 423 to rotate. The rotating first drive shaft 423 will cooperate with the horizontal ball bearing 433, so that the horizontal ball bearing 433 can drive the horizontal slider 431 to move freely horizontally on the bottom surface of the horizontal track 421.

[0043] The first hydraulic drive component 436 includes a first piston 4361. A first arc-shaped protrusion 4362 is fixedly connected to the top surface of the first piston 4361, and a first spring 4363 is fixedly connected to the bottom surface of the first piston 4361. A cylindrical groove that fits into the first piston 4361 is formed on the inner side of the transverse slide groove 435 near the first piston 4361. The interior of the cylindrical groove is filled with hydraulic oil. When the first piston 4361 moves, it can squeeze the hydraulic oil inside the cylindrical groove. Figure 5 , Figure 6 and Figure 13 As shown, the first protrusion 424 fits into the transverse groove 435. The two sides of the first protrusion 424 are inclined surfaces. When the transverse slider 431 moves on the bottom surface of the transverse track 421, the first protrusion 424 on the bottom surface of the transverse track 421 continuously passes through the transverse groove 435. When the first protrusion 424 touches the first arc-shaped protrusion 4362 on the top surface of the first piston 4361, the first protrusion 424 will press against the first piston 4361 through the first arc-shaped protrusion 4362. 1. The first piston 4361 squeezes the hydraulic oil inside the cylindrical groove. Since the first protrusion 424 squeezes the first arc-shaped protrusion 4362 sequentially and at equal time intervals, the first piston 4361 will also squeeze the hydraulic oil inside the cylindrical groove at equal time intervals. When the first protrusion 424 passes the first arc-shaped protrusion 4362, the elastic force of the first spring 4363 on the bottom surface of the first piston 4361 will act on the bottom surface of the first piston 4361, causing the first piston 4361 to automatically rebound.

[0044] As one embodiment of the present invention, such as Figure 7 As shown, a second drive shaft 437 is installed at the bottom center of the longitudinal track 432, and several second protrusions 438 are installed on both sides of the bottom of the longitudinal track 432. It should be noted that bearing seats are installed at both ends of the bottom surface of the longitudinal track 432 near the second drive shaft 437. The second drive shaft 437 is rotatably installed at the bottom center of the longitudinal track 432 through the bearing seats. A motor is installed on the top surface of the longitudinal track 432 by bolts. The output shaft of the motor is poweredly connected to the second drive shaft 437 through gears or other transmission mechanisms. The specific connection method can be adapted by those skilled in the art according to the spatial position of the longitudinal track 432 and the second drive shaft 437, ensuring that the power of the motor output shaft can be transmitted to the second drive shaft 437. In use, the motor can be turned on so that the output shaft of the motor can transmit power to the second drive shaft 437, driving the second drive shaft 437 to rotate.

[0045] As one embodiment of the present invention, such as Figure 6 , Figure 7 , Figure 8 and Figure 14 As shown, the movable seat 44 includes a power transmission box 441. A longitudinal slider 442 is rotatably connected to the top surface of the power transmission box 441. Longitudinal grooves 443 are provided on both sides of the longitudinal slider 442. A second hydraulic drive component 444 is installed at the middle position of the inner side of the longitudinal groove 443. A longitudinal ball bearing 445 that matches the second drive shaft 437 is installed at the middle position of the inner side of the longitudinal slider 442. It should be noted that since the longitudinal ball bearing 445 that matches the second drive shaft 437 is installed at the middle position of the inner side of the longitudinal slider 442, when the motor that is powered to the second drive shaft 437 is turned on, the output shaft of the motor can transmit power to the second drive shaft 437. The rotating second drive shaft 437, in conjunction with the longitudinal ball bearing 445, can enable the longitudinal slider 442 to move freely along the longitudinal direction on the bottom surface of the longitudinal track 432.

[0046] The second hydraulic drive component 444 includes a second piston 4441. A second arc-shaped protrusion 4442 is fixedly connected to the top surface of the second piston 4441, and a second spring 4443 is fixedly connected to the bottom surface of the second piston 4441. A cylindrical groove that fits into the second piston 4441 is formed on the inner side of the longitudinal groove 443 near the second piston 4441. The interior of the cylindrical groove is filled with hydraulic oil. When the second piston 4441 moves, it can squeeze the hydraulic oil inside the cylindrical groove. Figure 7 and Figure 8As shown, the second protrusions 438 installed on both sides of the bottom of the longitudinal track 432 fit into the longitudinal groove 443. When the longitudinal slider 442 moves longitudinally along the bottom of the longitudinal track 432, the second protrusions 438 installed on both sides of the bottom of the longitudinal track 432 will enter the inner side of the longitudinal groove 443. The second protrusions 438 are arranged in a straight line at equal intervals on both sides of the bottom of the longitudinal track 432. Since the second protrusions 438 squeeze the second arc-shaped protrusion 4442 in sequence and at equal time intervals, the second arc-shaped protrusion 4442 will also squeeze the hydraulic oil inside the cylindrical groove at equal time intervals. When the second protrusions 438 pass the second arc-shaped protrusion 4442, the elastic force of the second spring 4443 installed on the bottom surface of the second piston 4441 will act on the second piston 4441, causing the second piston 4441 to automatically rebound.

[0047] As one embodiment of the present invention, such as Figure 9 As shown, a fixed hydraulic rod 4411 is fixedly connected inside the power transmission box 441. The bottom end of the fixed hydraulic rod 4411 is connected to a sliding hydraulic rod 4412 via a hose. A sliding limit rod 4413 is connected to one side of the sliding hydraulic rod 4412. It should be noted that the bottom ends of the cylindrical groove inside the transverse slide groove 435 and the cylindrical groove inside the longitudinal slide groove 443 are sealed to the top end of the fixed hydraulic rod 4411 via oil pipes. It should be noted that the length of the oil pipe between the cylindrical groove inside the transverse slide groove 435 and the fixed hydraulic rod 4411, and the length of the oil pipe between the cylindrical groove inside the longitudinal slide groove 443 and the fixed hydraulic rod 4411, should not affect the movement of the transverse slider 431 and the moving seat 44.

[0048] Since the bottom end of the cylindrical groove inside the transverse slide 435 is sealed to the top end of the fixed oil rod 4411 through the oil pipe, and the cylindrical groove inside the transverse slide 435 will be squeezed by the first piston 4361 at equal time intervals, the hydraulic oil inside the cylindrical groove will enter the fixed oil rod 4411 through the oil pipe at equal time intervals, increasing the hydraulic oil inside the fixed oil rod 4411.

[0049] Since the bottom end of the cylindrical groove inside the longitudinal slide 443 is sealed to the top end of the fixed oil rod 4411 through the oil pipe, and the cylindrical groove inside the longitudinal slide 443 is squeezed by the second piston 4441 at equal time intervals, the hydraulic oil inside the cylindrical groove will enter the fixed oil rod 4411 through the oil pipe at equal time intervals, increasing the hydraulic oil inside the fixed oil rod 4411.

[0050] As one embodiment of the present invention, such as Figures 9-11As shown, a return spring 451 is fixedly connected to the top of the detection probe 45. A pull rod 452 is fixedly connected to the top of the detection probe 45 corresponding to the inner position of the return spring 451. A push piston 453 is fixedly connected to the top of the pull rod 452. The push piston 453 fits into the inner cavity of the sliding oil rod 4412. It should be noted that a lifting groove that fits into the detection probe 45 is opened on the inner side of the buffer seat 447, allowing the detection probe 45 to move freely within the lifting groove. The top of the return spring 451 is fixedly connected to the inner top surface of the lifting groove. When the hydraulic oil in the inner cavity of the fixed oil rod 4411 increases, the hydraulic oil in the inner cavity of the fixed oil rod 4411 can be transported to the sliding oil rod 4412 through a hose. The plug 453 fits into the inner cavity of the sliding oil rod 4412, so the sliding oil rod 4412 can drive the push piston 453 on its inner side, so that the push piston 453 can overcome the elastic force of the return spring 451 and move the detection probe 45 downward. The distance between the bottom end of the detection probe 45 and the top surface of the coating of the sample 5 to be tested is controlled by the technician to ensure that the detection probe 45 can move exactly to the top surface of the coating of the sample 5 to be tested and collect the thickness of the coating of the sample 5. Since the hydraulic oil entering the fixed oil rod 4411 is circulated, the detection probe 45 will also move downward in a circulated manner. When the detection probe 45 moves in the horizontal or vertical direction, the detection probe 45 can collect the array point thickness of the coating of the sample 5 to be tested.

[0051] As one embodiment of the present invention, such as Figure 9 and Figure 12 As shown, a drive motor 4414 is mounted on the inner top surface of the power transmission box 441. A drive worm gear 4415 is mounted on the output shaft of the drive motor 4414. A drive worm wheel 4416 meshes with one side of the drive worm gear 4415. The top surface of the drive worm wheel 4416 passes through the power transmission box 441 and is fixedly connected to the bottom surface of the longitudinal slider 442. It should be noted that when the drive motor 4414 is turned on, the output shaft of the drive motor 4414 will drive the drive worm gear 4415. Because one side of the drive worm gear 4415 is meshed... With a drive worm gear 4416, the rotating drive worm 4415 will drive the drive worm gear 4416 to rotate. The top surface of the drive worm gear 4416 passes through the power transmission box 441 and is fixedly connected to the bottom surface of the longitudinal slider 442. Therefore, the power transmission box 441 can rotate freely in the horizontal direction on the bottom surface of the longitudinal slider 442. Furthermore, there is a self-locking effect between the drive worm 4415 and the drive worm gear 4416, so the angle of the power transmission box 441 in the horizontal direction on the bottom surface of the longitudinal slider 442 can be freely adjusted.

[0052] In one embodiment of the present invention, a buffer frame 446 is fixedly connected to the bottom surface of the power transmission box 441. A slidable buffer seat 447 is provided on the inner side of the buffer frame 446. The detection probe 45 is located inside the buffer seat 447 and slides synchronously with the buffer seat 447. It should be noted that the buffer frame 446 is fixed to the bottom surface of the power transmission box 441. Therefore, when the power transmission box 441 moves, the buffer frame 446 will move synchronously with the movement of the power transmission box 441. Buffer grooves 4472 are provided on both sides of the buffer seat 447. A buffer slide rail 4462 is fixedly connected to the inner side of the buffer frame 446. The buffer grooves 4472 and the buffer slide rail 4462 are engaged. Therefore, the buffer seat 447 can slide freely along the direction of the buffer slide rail 4462 through the cooperation of the buffer grooves 4472 and the buffer slide rail 4462.

[0053] An elastic connecting rod 4461 is fixedly connected to the inner side of the buffer frame 446. A buffer hole 4471, matching the elastic connecting rod 4461, is provided on one side of the buffer seat 447 near its position. The elastic connecting rod 4461 is fixedly connected to the inner end of the buffer hole 4471. The elastic connecting rod 4461 can be a spring or a mechanism providing rebound force. Since the movement of the power transmission box 441 is continuous, when the bottom end of the detection probe 45 contacts the coating on the top surface of the sample 5 to be tested, the detection probe 45 will remain on the top surface of the sample 5 due to friction. The power transmission box 441... 41 will continue to move. After the detection probe 45 collects the thickness of the coating on the top surface of the sample 5, the detection probe 45 will automatically rise and detach from the top surface of the sample 5. At this time, under the action of the elastic connecting rod 4461, the buffer seat 447 will automatically return to the initial position on the buffer slide rail 4462. This ensures that the detection probe 45 can stay for a sufficient time when detecting the thickness of the coating on the top surface of the sample 5. On the one hand, this ensures the accuracy of the coating thickness collection by the detection probe 45, and on the other hand, it prevents the detection probe 45 from rubbing and moving on the surface of the coating, which could damage the coating.

[0054] It should also be noted that a sliding limit rod 4413 is connected to one side of the sliding hydraulic rod 4412. The sliding limit rod 4413 consists of two interlocking limit rods. One limit rod is fixedly connected to the side of the sliding hydraulic rod 4412, and the other limit rod is fixedly connected to the inner side of the power transmission box 441. When the buffer seat 447 and the power transmission box 441 are relatively displaced, the sliding limit rod 4413 will not affect the horizontal position of the sliding hydraulic rod 4412, but it will restrict the vertical position of the sliding hydraulic rod 4412, ensuring that the sliding hydraulic rod 4412 can drive the detection probe 45 by pulling the piston 453 and the pulling rod 452, and control the up and down movement of the detection probe 45.

[0055] When the thickness detection mechanism 4 moves to collect the array point thickness of the top surface coating of the sample 5, it is necessary to control the orientation of the buffer frame 446 and the buffer seat 447 to ensure that the orientation of the buffer frame 446 and the buffer seat 447 is consistent with the moving collection direction of the thickness detection mechanism 4. The orientation of the buffer frame 446 and the buffer seat 447 is adjusted by the drive worm 4415 and the drive worm wheel 4416, which will not be described in detail here.

[0056] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A coating thickness detection device, characterized in that, include: The device base (1) has a control panel (2) installed on one side of its top surface. The clamping mechanism (3) is located on the other side of the top surface of the device base (1); The thickness detection mechanism (4) is set in the middle of the top surface of the device base (1). The thickness detection mechanism (4) automatically collects the array point thickness by moving on the surface of the sample to be tested (5) and generates the average thickness of the surface of the sample to be tested (5) based on the array point thickness. The thickness detection mechanism (4) includes a lifting rod (41), a first track (42) is fixedly connected to the top of the lifting rod (41), a second track (43) is provided at the bottom of the first track (42), a movable seat (44) is provided at the bottom of the first track (42), and a detection probe (45) is provided at the bottom of the movable seat (44). The movable seat (44) includes a power transmission box (441). The power transmission box (441) is fixedly connected to a fixed oil rod (4411). The bottom end of the fixed oil rod (4411) is connected to a sliding oil rod (4412) through a hose. A sliding limit rod (4413) is connected to one side of the sliding oil rod (4412). The top of the detection probe (45) is fixedly connected to a return spring (451), and the top of the detection probe (45) is fixedly connected to a pull rod (452) corresponding to the inner position of the return spring (451). The top of the pull rod (452) is fixedly connected to a push piston (453), and the push piston (453) is matched with the inner cavity of the sliding oil rod (4412). The bottom surface of the power transmission box (441) is fixedly connected to a buffer frame (446), and a slidable buffer seat (447) is provided on the inner side of the buffer frame (446). The detection probe (45) is located inside the buffer seat (447) and slides synchronously with the buffer seat (447).

2. The coating thickness detection device according to claim 1, characterized in that, The first track (42) includes a transverse track (421), with first limiting tracks (422) on both sides of the bottom surface of the transverse track (421), and a first drive shaft (423) in the middle of the bottom surface of the transverse track (421). Multiple first protrusions (424) in a straight line are provided between the first limiting track (422) and the first drive shaft (423).

3. The coating thickness detection device according to claim 2, characterized in that, The second track (43) includes a transverse slider (431), the bottom surface of which is fixedly connected to a longitudinal track (432). A transverse ball bearing (433) that matches the first drive shaft (423) is installed inside the transverse slider (431). A pulley group (434) that matches the first limiting track (422) is installed on both sides of the transverse slider (431). A transverse groove (435) is provided on one side of the top surface of the transverse slider (431) near the first protrusion (424). A first hydraulic drive component (436) is installed in the middle of the transverse groove (435).

4. The coating thickness detection device according to claim 3, characterized in that, A second drive shaft (437) is installed at the bottom center of the longitudinal track (432), and multiple second protrusions (438) are installed on both sides of the bottom of the longitudinal track (432).

5. The coating thickness detection device according to claim 4, characterized in that, The top surface of the power transmission box (441) is rotatably connected to a longitudinal slider (442). Longitudinal grooves (443) are provided on both sides of the longitudinal slider (442). A second hydraulic drive component (444) is installed in the middle of the inner side of the longitudinal groove (443). A longitudinal ball bearing (445) that matches the second drive shaft (437) is installed in the middle of the inner side of the longitudinal slider (442).

6. The coating thickness detection device according to claim 5, characterized in that, A drive motor (4414) is installed on the inner top surface of the power transmission box (441). A drive worm (4415) is installed on the output shaft of the drive motor (4414). A drive worm wheel (4416) is meshed on one side of the drive worm (4415). The top surface of the drive worm wheel (4416) passes through the power transmission box (441) and is fixedly connected to the bottom surface of the longitudinal slider (442).

Images