A ceramic composite board coating thickness measuring device

Abstract

The application relates to the technical field of thickness measurement, in particular to a ceramic composite plate coating thickness measuring device, which comprises a base, a connecting arm, a to-be-measured object clamping mechanism and a detection mechanism, characterized in that the connecting arm is welded and installed at the middle part of the rear side of the base, the to-be-measured object clamping mechanism is installed at the top of the base, and the detection mechanism is fixedly installed at the top of the connecting arm. During application of the technical scheme, through the linkage structure of the limiting driving module, the spacing adjusting assembly, the detection mechanism related module and the transverse moving module and the fourth motor, stable and centered clamping of different size circular to-be-measured composite plates can be realized, complete top, bottom and side surface detection can be completed without manual intervention, the detection area can be quickly covered and different size to-be-measured objects can be flexibly adapted, so that the effects of stable clamping, complete detection and efficient adaptation are achieved, and the problems of unstable clamping, data distortion, manual surface turning, low efficiency and poor adaptability in the prior art are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of thickness measurement, in particular to a ceramic composite plate coating thickness measuring device. BACKGROUND

[0002] In the industrial fields of daily-use ceramics, electronic ceramics and powder material sintering, the round-shaped saggar is widely used in the production process of bowl-shaped, disc-shaped and spherical ceramic products due to the advantages of uniform heat distribution in the kiln and isolation of the kiln atmosphere to avoid pollution or deformation of the products during sintering. The round-shaped ceramic composite plate, as the core functional plate material matching the structure of the round-shaped saggar, directly determines the service life of the saggar and the quality of the sintered products. The plate material is usually made of high-temperature-resistant ceramics such as alumina, silicon carbide and cordierite as the base material, and is made by composite process with reinforcing phase. The whole is regular round-shaped, the outer diameter needs to be accurately matched with the inner diameter of the corresponding round-shaped saggar, and at the same time has the characteristics of high-temperature resistance, wear resistance, thermal shock resistance and high mechanical strength, and can withstand the kiln environment of 1200-1800 DEG C.

[0003] To ensure the stability of the round-shaped ceramic composite plate during long-term high-temperature service, the uniformity and integrity of the surface coating thickness are crucial. The coating is mainly used to further improve the corrosion resistance and anti-peeling performance of the plate material. Therefore, during the saggar production and processing process, the coating thickness of the round-shaped ceramic composite plate must be strictly detected. In the existing coating thickness measurement technology, a coating thickness measuring device for the surface of a roller is disclosed in Chinese Patent No. CN222086961U. The device can realize the detection of the surface coating of rollers of different sizes through the cooperation of the bottom plate, the box, the horizontal adjusting component, the lifting detection component and the roller placing component, and improves the detection range and data accuracy, solving the problems of traditional roller coating detection, such as the inability to adjust the detection tool according to the size of the roller and the difficulty in measuring the thickness of different positions on the surface.

[0004] However, the above-mentioned roller coating thickness measuring device has significant adaptability defects when applied to the coating detection of the round-shaped ceramic composite plate.

[0005] Firstly, the clamp structure of the device is designed to adapt to the cylindrical structure of the roller, and the whole is relatively simple, and cannot realize stable centering and clamping positioning for the flat and round-shaped structure of the round-shaped ceramic composite plate. If deviation occurs during clamping, it is easy to cause distortion of the coating thickness detection data, affecting the reliability of the detection results.

[0006] Secondly, the detection direction and structure of the device can only measure the coating thickness of a single surface of the plate, such as the top surface, while in actual production, the circumferential side and bottom of the circular ceramic composite plate are covered with a coating, and in order to ensure the overall protection performance of the plate, the top surface, bottom surface and circumferential side need to be comprehensively detected, the existing device does not have the function of detecting the coating on the circumferential side, and if the bottom coating needs to be detected, the device needs to be stopped and manually flipped, which not only increases the operation process and labor cost, but also may damage the plate during the flipping process, resulting in a significant decrease in detection efficiency and practicability.

[0007] It can be seen that the existing roll coating thickness measuring device cannot meet the needs of comprehensive and accurate detection of the coating of the circular ceramic composite plate, and the existing technology needs to be improved and designed. SUMMARY

[0008] In order to improve the comprehensive detection of the existing equipment for ceramic composite plates, the application provides a ceramic composite plate coating thickness measuring device.

[0009] The ceramic composite plate coating thickness measuring device provided by the application adopts the following technical scheme: a base, a connecting arm, a measured object clamping mechanism and a detection mechanism, characterized in that: the connecting arm is welded and installed at the middle part of the rear side of the base, the measured object clamping mechanism is installed at the top of the base, and the detection mechanism is fixedly installed at the top of the connecting arm; the detection mechanism is arranged above the measured object clamping mechanism for detecting the circular measured composite plate clamped in the measured object clamping mechanism.

[0010] The detection mechanism includes a case, the case is installed at the top end of the connecting arm through bolts, an upper detection module is fixedly installed at the middle part of one side of the case, a thickness gauge is installed inside the case through screws, the detection end of the thickness gauge is arranged at the moving end of the upper detection module, a side detection module is installed at one side of the case through bolts, the side detection module and the thickness gauge are electrically connected, the upper detection module is used to assist the measured object clamping mechanism to detect the top surface and bottom surface of the circular measured composite plate, and the side detection module is used to detect the outer surface of the circumferential side of the circular measured composite plate, so as to achieve the effect of comprehensive detection.

[0011] The object clamping mechanism comprises a horizontal movement module, which is fixedly installed on the top of the base, and a rotating module is fixedly installed on the moving end of the horizontal movement module, both moving ends of the rotating module are fixedly connected with limiting driving modules, and a circular object to be tested is clamped between the inner sides of the two limiting driving modules, the horizontal movement module is used for adjusting the horizontal movement of the circular object to be tested, linear detection is realized, and the rotating module is used for adjusting the rotation of the circular object to be tested, so that the circular object to be tested is conveniently turned over, both surfaces of the circular object to be tested are detected, and the rotating module can also adjust the spacing between the two limiting driving modules, so that circular objects to be tested with different diameters are detected.

[0012] Optionally, the upper detection module comprises a side base plate, the side base plate is welded to the middle part of the side of the cabinet away from the side detection module, a first electric cylinder is installed on the top of the side base plate through bolts, a bent connecting rod is fixedly installed on the bottom output end of the first electric cylinder and penetrates through the side base plate, and an upper detection probe is installed on the outer end of the bent connecting rod through bolts.

[0013] Optionally, the side detection module comprises a side connecting arm, the side connecting arm is welded and installed on the middle part of the side of the cabinet away from the side base plate, a PLC controller is installed on the outer lower end of the side connecting arm through bolts, a side detection probe is installed on the lower end of the side of the side connecting arm close to the first electric cylinder through screws, the side detection probe is electrically connected with the thickness gauge through wires, and the side detection probe and the circular object to be tested are arranged on the same horizontal plane, so that the side of the circular object to be tested can be comprehensively detected when the limiting driving module drives the circular object to be tested to rotate during use.

[0014] Optionally, the horizontal movement module comprises a base, the base is integrally formed on one side of the top of the base, a sliding groove is formed in the inner side of the base, the sliding groove extends in the base and penetrates through the base, a first motor is installed on the middle part of the side of the base close to the side connecting arm through screws, a one-way screw rod is rotatably arranged in the sliding groove through a ball bearing, the end of the one-way screw rod is connected with the output end of the first motor through a shaft coupling, a movable block is movably arranged in the sliding groove, the movable block is threadedly connected to the outer surface of the one-way screw rod, the movable block can slide in the sliding groove through the one-way screw rod, and the rotating module is welded to the outer side of the movable block.

[0015] Optionally, the rotating module comprises a connecting main frame, the connecting main frame is slidably arranged in the sliding groove, one end of the connecting main frame close to the second motor is welded to the outer side of the movable block, the outer side of the connecting main frame is fixedly provided with a bent support, the top end of the bent support is welded with a ring-shaped frame, the inner side of the ring-shaped frame is welded with a motor mounting plate, the outer side of the motor mounting plate is provided with the second motor through screws, the side of the motor mounting plate away from the second motor is provided with a distance adjusting assembly, the side of the distance adjusting assembly is connected with the output end of the second motor through a shaft coupling, and the second motor is used for driving the distance adjusting assembly to rotate the clamped circular composite board to be detected, so as to realize the turning operation and achieve the effect of two-side detection.

[0016] Optionally, the distance adjusting assembly comprises a side rail, the side rail is rotatably arranged on the side of the motor mounting plate away from the second motor through a rotating shaft, the side of the side rail close to the motor mounting plate is connected with the output end of the second motor through a shaft coupling, one end of the side rail is provided with a third motor through screws, the third motor is powered through a conductive slip ring, the inside of the side rail is rotatably provided with a bidirectional screw rod through a ball bearing, the screw threads of the two ends of the bidirectional screw rod are opposite, one end of the bidirectional screw rod is connected with the output end of the third motor through a shaft coupling, and the two ends of the bidirectional screw rod are both provided with sliding blocks in threaded connection.

[0017] Optionally, the distance adjusting assembly comprises a mounting arm, the mounting arm is welded to the side of the sliding block away from the second motor, the mounting arms on the two sliding blocks are symmetrically arranged, and one end of the mounting arm away from the sliding block is welded with a fixed circular seat.

[0018] Optionally, the longitudinal limiting set comprises an upright rail and a second electric cylinder, the upright rail is welded and installed at the middle part of the inner side of the arc-shaped arm, the inner ends of the upright rail are slidably connected with sliding blocks, the second electric cylinder is screwed and installed at the outer side of the fixed round base, the output end of the second electric cylinder is screwed with a hinged frame, the top and bottom of the hinged frame are hingedly connected with linkage rods, the side of the sliding block close to the hinged frame is screwed with a hinge, the end of the linkage rod is hingedly connected with the hinge, the sides of the sliding blocks close to each other are welded with inner connecting rods, the inner ends of the inner connecting rods are fixedly connected with longitudinal clamping plates, the two longitudinal clamping plates are used for preliminarily clamping and positioning the circular composite plate on the inner side, the hinged frame is pushed out by starting the second electric cylinder, the hinged frame is pushed out to push the linkage rod out and rotate, under the action of force, the sliding blocks are slid close to each other in the upright rail, and then the sliding blocks drive the longitudinal clamping plates at the ends of the inner connecting rods to be close to each other to preliminarily clamp and position the circular composite plate.

[0019] Optionally, the limiting and clamping set comprises a concave frame, the concave frame is integrally formed at the two ends of the arc-shaped arm, the inner side of the concave frame is rotatably connected with clamping guide wheels, the circumferential side of the clamping guide wheel is provided with a V-shaped clamping guide groove, the top of one concave frame is screwed with a fourth electric motor, the output end of the fourth electric motor is connected with the top of the corresponding clamping guide wheel through a shaft coupling, when the third electric motor drives the bidirectional screw rod to rotate to drive the two arc-shaped arms to be close to each other, the clamping guide wheels at the two ends of the two arc-shaped arms can adaptively clamp the circular composite plate, the V-shaped clamping guide groove can stably fit the circular composite plate with different thicknesses, and the arc-shaped arm is designed in an arc shape, which can fit the circular composite plate with different diameters, so that the circular composite plate with different thicknesses and diameters can be stably clamped and centered, the circular composite plate can be further extruded and centered after being preliminarily positioned by the longitudinal limiting set, so as to realize the overall coating thickness detection of the circumferential side and the top and bottom surfaces, and the fourth electric motor can drive the clamping guide wheel to rotate, the clamping guide wheel is in close contact with the outer surface of the circular composite plate, and the circular composite plate can be driven to rotate on the inner side of the four clamping guide wheels to realize overall thickness detection.

[0020] Optionally, the inner side of the longitudinal clamping plate is rotatably connected with lubricating balls at equal intervals, the inner side of the lubricating ball is in rolling connection with the surface of the circular composite plate, and the lubricating ball is used for lubricating and rolling when the clamping guide wheel of the limiting and clamping set centers and corrects the circular composite plate, so as to reduce the friction between the longitudinal clamping plate and the circular composite plate, and further reduce the driving load of the third electric motor and the fourth electric motor.

[0021] In summary, the present application has the following beneficial technical effects:

[0022] During the application of the technical solution, the spacing adjustment assembly in the spacing driving module and the rotating module is arranged, so that during use, the preliminary clamping positioning can be first completed by the second electric cylinder driving the longitudinal clamping plate, and then the spacing of the spacing driving module is adjusted by the third motor driving the bidirectional screw rod, which is matched with the V-shaped clamping groove of the clamping guide wheel and the design of the arc-shaped arm to stably center and correct the circular composite board to be detected, thereby achieving the effect that different size circular composite boards to be detected can be stably clamped, solving the problem in the prior art that the fixture structure is simple and cannot stably center and clamp the circular ceramic composite board, and the detection data is easily distorted due to clamping deviation.

[0023] During the application of the technical solution, the linkage structure of the upper detection module, the side detection module and the workpiece clamping mechanism in the detection mechanism is arranged, so that during use, the upper detection module can be linked with the horizontal movement module and the fourth motor to simultaneously realize horizontal and circumferential detection of the top surface of the circular composite board to be detected, the side detection module is used to synchronously complete the circumferential side detection, and the second motor is used to drive the workpiece to be detected to realize bottom surface detection, thereby achieving the effect that the top surface, the bottom surface and the circumferential side can be comprehensively detected without manual intervention, solving the problem in the prior art that only a single surface can be detected, the equipment needs to be paused for manual turning to detect the bottom surface, the board is easily damaged, and the operation process and labor cost are increased.

[0024] During the application of the technical solution, the linkage cooperation structure of the horizontal movement module and the fourth motor, and the adaptive design of the spacing adjustment assembly are arranged, so that during use, the detection area of the workpiece to be detected can be quickly covered by linkage of the two, the data acquisition efficiency is improved, and different diameters and thicknesses of the workpiece to be detected can be adapted by adjusting the spacing of the spacing driving module by the third motor without replacing the fixture, thereby achieving the effects of high detection efficiency and strong adaptability, and solving the problems of low detection efficiency, inability to flexibly adapt to different size circular ceramic composite boards, and poor practicability in the prior art. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application;

[0026] Figure 2 is a schematic diagram of the rear view structure in the embodiment of the present application;

[0027] Figure 3 is a schematic diagram of the top view structure of the workpiece clamping mechanism in the stretched state in the embodiment of the present application;

[0028] Figure 4 is a schematic diagram of the bottom view structure of the workpiece clamping mechanism in the stretched state in the embodiment of the present application;

[0029] Figure 5 is a schematic diagram of the side view structure of the workpiece clamping mechanism in the stretched state in the embodiment of the present application;

[0030] Figure 6 is a front view structural schematic diagram of the rotating module and the limiting driving module in the embodiment of the application;

[0031] Figure 7 is a top view structural schematic diagram of the rotating module and the limiting driving module in the embodiment of the application;

[0032] Figure 8 is a side view structural schematic diagram of the rotating module and the limiting driving module in the embodiment of the application;

[0033] Figure 9 is a structural schematic diagram of the limiting driving module in the embodiment of the application.

[0034] The drawing label: 1, base; 2, connecting arm; 3, measured object clamping mechanism; 31, horizontal movement module; 311, base; 312, sliding groove; 313, first motor; 314, one-way screw rod; 315, movable block; 32, rotating module; 321, connecting main frame; 322, bending support; 323, ring-shaped frame; 324, motor mounting plate; 325, second motor; 326, spacing adjustment assembly; 3261, side rail; 3262, third motor; 3263, bidirectional screw rod; 3264, sliding block; 33, limiting driving module; 331, mounting arm; 332, fixed circular seat; 333, arc-shaped arm; 334, limiting clamp group; 3341, concave frame; 3342, clamping guide wheel; 3343, V-shaped clamping guide groove; 3344, fourth motor; 335, longitudinal limiting group; 3351, vertical rail; 3352, second electric cylinder; 3353, sliding block; 3354, hinged frame; 3355, linkage rod; 3356, hinged piece; 3357, inner connecting rod; 3358, longitudinal clamping plate; 3359, lubricating ball; 4, detection mechanism; 41, case; 42, upper detection module; 421, side base plate; 422, first electric cylinder; 423, bending connecting rod; 424, upper detection probe; 43, thickness gauge; 44, side detection module; 441, side connecting arm; 442, PLC controller; 443, side detection probe. DETAILED DESCRIPTION

[0035] The following Figures 1-9 The application is further described in detail.

[0036] The embodiment of the application discloses a ceramic composite plate coating thickness measuring device. Figures 1-9 As shown in the figure, including base 1, connecting arm 2, measured object clamping mechanism 3 and detection mechanism 4, characterized in that; The connecting arm 2 is welded and installed at the middle part of the rear side of the base 1, the measured object clamping mechanism 3 is installed at the top of the base 1, the detection mechanism 4 is fixedly installed at the top of the connecting arm 2, the detection mechanism 4 is arranged above the measured object clamping mechanism 3 for detecting the circular measured composite plate clamped in the measured object clamping mechanism 3 to carry out detection;

[0037] The detection mechanism 4 comprises a box 41 which is bolted to the top end of the connecting arm 2, and an upper detection module 42 is fixedly installed in the middle of one side of the box 41. A thickness gauge 43 is screw-installed in the interior of the box 41, and the detection end of the thickness gauge 43 is arranged at the moving end of the upper detection module 42. A side detection module 44 is bolt-installed on one side of the box 41, and the side detection module 44 is electrically connected with the thickness gauge 43. The upper detection module 42 is used for assisting the round-shaped to-be-detected composite board top surface and bottom surface detection of the to-be-detected object clamping mechanism 3, and the side detection module 44 is used for detecting the outer surface circumferential side of the round-shaped to-be-detected composite board, so as to realize the effect of comprehensive detection.

[0038] The measured object clamping mechanism 3 comprises a horizontal movement module 31 fixedly installed on the top of the base 1, a rotating module 32 fixedly installed at the moving end of the horizontal movement module 31, two limiting driving modules 33 fixedly connected at the two moving ends of the rotating module 32, and a circular measured composite board clamped between the inner sides of the two limiting driving modules 33. The horizontal movement module 31 is used for adjusting the lateral movement of the circular measured composite board to realize linear detection, and the rotating module 32 is used for adjusting the rotation of the circular measured composite board to facilitate its overturning to detect both sides of the circular measured composite board. Meanwhile, the rotating module 32 can also adjust the spacing of the two limiting driving modules 33 to realize the detection of circular measured composite boards of different sizes and diameters. The limiting driving module 33 is used for clamping and limiting the circular measured composite board and can also drive the measured circular composite board to rotate for detection. During the application of the device, the circular measured composite board can be placed between the two limiting driving modules 33 of the measured object clamping mechanism 3 before use, and the limiting driving modules 33 clamp and limit the circular measured composite board, and can also drive the circular measured composite board to rotate for detection. The horizontal movement module 31 in the measured object clamping mechanism 3 can adjust the lateral movement of the circular measured composite board to realize linear detection, and the rotating module 32 can adjust the rotation of the circular measured composite board to facilitate its overturning to complete two-sided detection. Meanwhile, the rotating module 32 can also adjust the spacing of the two limiting driving modules 33 to realize the detection of circular measured composite boards of different sizes and diameters. The detection mechanism 4 is arranged above the measured object clamping mechanism 3, the detection end of the thickness gauge 43 in the case 41 of the detection mechanism 4 is connected with the moving end of the upper detection module 42, the upper detection module 42 can assist the measured object clamping mechanism 3 to detect the top and bottom surfaces of the circular measured composite board, and the side detection module 44 can detect the outer surface of the circular measured composite board, so as to realize comprehensive detection and solve the problems of incomplete detection and poor adaptability in the prior art, improve the convenience and practicality of detection, and accurately detect circular measured composite boards of different sizes without complex operation.

[0039] Please refer to Figures 1-5The side detection module 44 comprises a side connecting arm 441 which is welded and installed at the middle of the side of the cabinet 41 away from the side base plate 421, a PLC controller 442 is installed at the outer lower end of the side connecting arm 441 through bolts, a side detection probe 443 is installed at the lower end of the side of the side connecting arm 441 close to the first electric cylinder 422 through screws, the side detection probe 443 is electrically connected with the thickness gauge 43 through wires, and the side detection probe 443 and the circular composite board to be detected are arranged at the same horizontal plane, so that the circular composite board to be detected can be comprehensively detected during rotation driven by the limiting driving module 33, the rotating module 32 comprises a connecting main frame 321 which is slidably arranged in the sliding groove 312, one end of the connecting main frame 321 close to the second motor 325 and the outer side of the movable block 315 are welded, a bending support 322 is fixedly installed at the outer side of the connecting main frame 321, an annular frame 323 is welded and installed at the top end of the bending support 322, a motor mounting plate 324 is welded and installed at the inner side of the annular frame 323, the second motor 325 is installed at the outer side of the motor mounting plate 324 through screws, a spacing adjusting assembly 326 is arranged at the side of the motor mounting plate 324 away from the second motor 325, one side of the spacing adjusting assembly 326 is connected with the output end of the second motor 325 through a shaft coupling, the second motor 325 is used for driving the spacing adjusting assembly 326 to rotate the clamped circular composite board to be detected, so that the turning operation is realized, the effect of double-side detection is achieved, the spacing adjusting assembly 326 comprises a side rail 3261 which is rotatably arranged at the side of the motor mounting plate 324 away from the second motor 325 through a rotating shaft, the side rail 3261 is connected with the output end of the second motor 325 through a shaft coupling at the middle of the side of the motor mounting plate 324 close to the motor mounting plate 324, a third motor 3262 is installed at one end of the side rail 3261 through screws, the third motor 3262 is powered through a conductive slip ring, a bidirectional screw rod 3263 is rotatably arranged in the side rail 3261 through a ball bearing, the screw threads of the two ends of the bidirectional screw rod 3263 are opposite in direction, one end of the bidirectional screw rod 3263 is connected with the output end of the third motor 3262 through a shaft coupling, and the two ends of the bidirectional screw rod 3263 are both threadedly connected with sliding blocks 3264, the sliding blocks 3264 are slidably arranged at the two ends in the side rail 3261, and the limiting driving module 33 is fixedly installed at the side of the two sliding blocks 3264 away from the second motor 325, during application of the device, the side detection module 44, the rotating module 32 and the spacing adjusting assembly 326 are arranged, so that the side detection module 44 is used for completing the circumferential side detection, the rotating module 32 is used for realizing the turning operation, and the spacing adjusting assembly 326 is used for adapting different sizes of objects to be detected, in the side detection module 44, the side detection probe 443 is electrically connected with the thickness gauge 43 through wires and is arranged at the same horizontal plane with the circular composite board to be detected, when the limiting driving module 33 drives the circular composite board to be detected to rotate, the side detection probe 443 can comprehensively detect the circumferential side of the circular composite board to be detected,The PLC controller of the side detection module 44 can ensure stable operation of itself; in the rotating module 32, the second motor 325 drives the interval adjusting assembly 326 to rotate through the coupling when the second motor 325 operates, and the interval adjusting assembly 326 is fixedly installed with the limiting driving module 33, and the limiting driving module 33 clamps the circular composite board to be detected, so that the circular composite board to be detected can be driven to rotate, the turning operation is realized, and the effect of detecting two surfaces of the circular composite board to be detected is achieved; in the interval adjusting assembly 326, the third motor 3262 is powered through the conductive slip ring, and the bidirectional screw rod 3263 inside the side rail 3261 is driven to rotate when the third motor 3262 operates; because the thread rotation directions of the two ends of the bidirectional screw rod 3263 are opposite, the sliding blocks 3264 connected with the two ends of the bidirectional screw rod 3263 slide towards or away from each other along the inside of the side rail 3261, and the limiting driving modules 33 are fixed on the two sliding blocks 3264 respectively, so that the interval of the two limiting driving modules 33 can be adjusted; such a design enables the side detection module 44 to detect the whole side without additional angle adjustment, the rotating module 32 can complete the turning of the object to be detected without manual intervention to realize two-surface detection, and the interval adjusting assembly 326 can flexibly change the interval of the limiting driving modules 33 to adapt to circular composite boards to be detected of different sizes, thereby improving the comprehensiveness and convenience of detection and enhancing the adaptation ability of the device to objects to be detected of different specifications, meeting the requirements of side detection, two-surface detection and multi-size adaptation in actual detection, and avoiding the problem of low detection efficiency caused by single detection function or poor adaptability.

[0040] Please refer to Figures 1-5The upper detection module 42 comprises a side base plate 421 welded to the middle of the side of the cabinet 41 away from the side detection module 44, the top of the side base plate 421 is provided with a first electric cylinder 422 through bolt mounting, the bottom output end of the first electric cylinder 422 is fixedly provided with a bent connecting rod 423 penetrating through the side base plate 421, and the outer end of the bent connecting rod 423 is provided with an upper detection probe 424 through bolt mounting. The upper detection probe 424 is electrically connected with the thickness gauge 43 through wires, and the longitudinal height of the upper detection probe 424 can be adjusted by using the first electric cylinder 422, so that detection debugging is facilitated. The side detection module 44 comprises a side connecting arm 441 welded and mounted to the middle of the side of the cabinet 41 away from the side base plate 421, the outer lower end of the side connecting arm 441 is provided with a PLC controller 442 through bolt mounting, the lower end of the side of the side connecting arm 441 close to the first electric cylinder 422 is provided with a side detection probe 443 through screw mounting, the side detection probe 443 is electrically connected with the thickness gauge 43 through wires, and the side detection probe 443 and the circular composite board to be detected are arranged at the same horizontal position. During use, when the limiting driving module 33 drives the circular composite board to be detected to rotate, the side detection probe 443 can comprehensively detect the circumferential side of the circular composite board to be detected. During application of the device, the longitudinal height of the upper detection probe 424 can be adjusted by the first electric cylinder 422 in the upper detection module 42 during use, so that detection debugging is facilitated. The upper detection probe 424 is electrically connected with the thickness gauge 43 through wires, and can cooperate to complete the corresponding detection work. The side detection probe 443 in the side detection module 44 is also electrically connected with the thickness gauge 43 through wires, and the side detection probe 443 and the circular composite board to be detected are arranged at the same horizontal position. When the limiting driving module 33 drives the circular composite board to be detected to rotate, the side detection probe 443 can comprehensively detect the circumferential side of the circular composite board to be detected. The side detection module 44 is also provided with a PLC controller, which can assist in ensuring the stability of the module operation. Such design enables the upper detection module 42 to flexibly adjust the detection position to adapt to different detection requirements, and the side detection module 44 can comprehensively detect the circumferential side during the rotation of the object to be detected, without the need for additional adjustment of the detection angle or position, thereby improving the convenience and comprehensiveness of detection, ensuring that the coating thickness data of the corresponding part of the circular composite board to be detected can be accurately obtained during detection, meeting the actual needs of detection debugging and comprehensive circumferential detection, and avoiding the problem of incomplete detection caused by fixed detection position or limited detection range.

[0041] Please refer to Figures 6-9The limiting and clamping group 334 includes a concave bracket 3341 integrally arranged at both ends of the arc-shaped arm 333, the inner side of the concave bracket 3341 is rotationally connected with a clamping guide wheel 3342, the circumferential side of the clamping guide wheel 3342 is provided with a V-shaped clamping guide groove 3343, the top of one concave bracket 3341 is provided with a fourth motor 3344 through a screw, the output end of the fourth motor 3344 is connected with the top of the corresponding clamping guide wheel 3342 through a shaft coupling, when the third motor 3262 drives the bidirectional screw rod 3263 to rotate to drive the two arc-shaped arms 333 to approach each other, the clamping guide wheels 3342 at both ends of the two arc-shaped arms 333 can adaptively clamp the circular composite board to be measured, the inner inclined surface design of the V-shaped clamping guide groove 3343 can stably fit the circular composite board to be measured with different thicknesses, at the same time, the arc-shaped arms 333 are designed as a whole in an arc shape, which can fit the circular composite board to be measured with different diameters, realize stable and central clamping of the circular composite board to be measured with different thicknesses and diameters, and can further extrude and correct the circular composite board to be measured after preliminary positioning by the longitudinal limiting group 335, so as to realize overall coating thickness detection of the circumferential side and the top and bottom surfaces of the circular composite board to be measured, the fourth motor 3344 can drive the clamping guide wheel 3342 to rotate, the clamping guide wheel 3342 is in contact with the outer surface of the circular composite board to be measured, and the circular composite board to be measured is driven to rotate on the inner side of the four clamping guide wheels 3342 to realize overall thickness detection, the inner side of the longitudinal clamping plate 3358 is rotationally connected with lubricating balls 3359 at equal intervals, the inner side of the lubricating balls 3359 is in rolling connection with the surface of the circular composite board to be measured, the lubricating balls 3359 are used for lubricating rolling when the clamping guide wheels 3342 of the limiting and clamping group 334 correct the circular composite board to be measured, the friction between the longitudinal clamping plate 3358 and the circular composite board to be measured is reduced, and the driving load of the third motor 3262 and the fourth motor 3344 is further reduced, during the application of the device, the limiting and clamping group 334 and the lubricating balls 3359 are arranged, so that the limiting and clamping group 334 can be used for stable and central clamping and rotary driving of the circular composite board to be measured with different sizes, the friction in the clamping and rotating process is reduced through the lubricating balls 3359, the concave bracket 3341 of the limiting and clamping group 334 is rotationally connected with the clamping guide wheel 3342, the circumferential side of the clamping guide wheel 3342 is provided with a V-shaped clamping guide groove, the top of one concave bracket 3341 is further provided with the fourth motor 3344, and the output end of the fourth motor 3344 is connected with the corresponding clamping guide wheel 3342.When the third motor 3262 drives the bidirectional screw rod 3263 to rotate and drive the two arc-shaped arms 333 to approach each other, the clamping guide wheels 3342 at the two ends of the two arc-shaped arms 333 adaptively clamp the circular to-be-tested composite board. The inner inclined surface design of the V-shaped clamping guide groove can stably fit the board with different thicknesses, and the arc-shaped design of the arc-shaped arms 333 can fit the board with different diameters, so as to realize stable and centered clamping of the to-be-tested composite board with different thicknesses and diameters. After preliminary positioning by the longitudinal limiting group 335, the board can be further extruded and centered to correct, thereby providing a stable basis for subsequent overall coating thickness detection of the side, top surface and bottom surface; when it is necessary to drive the board to rotate to complete the overall detection, the fourth motor 3344 is started, which drives the clamping guide wheels 3342 to rotate. Since the clamping guide wheels 3342 are in close contact with the outer surface of the circular to-be-tested composite board, the board can be driven to rotate inside the four clamping guide wheels 3342. At the same time, the lubricating ball 3359 rotatably connected to the inner side of the longitudinal clamping plate 3358 will roll on the surface of the board when the limiting and clamping group 334 clamps and corrects the to-be-tested composite board, thereby reducing the friction between the longitudinal clamping plate 3358 and the board, and further reducing the driving load of the third motor 3262 and the fourth motor 3344. Such a design enables the limiting and clamping group 334 to adapt to boards with different sizes without the need to replace parts, thereby ensuring the stability and centering effect of clamping and driving the board to rotate to meet the overall detection requirement. The lubricating ball 3359 effectively relieves the driving pressure of the motor, prolongs the service life of the parts, and simplifies the detection and adaptation process of boards with different sizes, thereby avoiding detection errors or part wear caused by unstable clamping and high driving load, and meeting the actual requirement of stable detection of to-be-tested composite boards with different specifications.

[0042] Please refer to Figures 4-9The limiting driving module 33 comprises mounting arms 331 welded and mounted on one side of the sliding blocks 3264 away from the second motor 325, the mounting arms 331 on the two sliding blocks 3264 are symmetrically arranged, and the ends of the mounting arms 331 away from the sliding blocks 3264 are welded and mounted with fixed round seats 332, the inner ends of the fixed round seats 332 are welded and mounted with arc-shaped arms 333, the two ends of the arc-shaped arms 333 are provided with limiting clamp groups 334, the inner side middle part of the arc-shaped arms 333 is fixedly mounted with longitudinal limiting groups 335, the longitudinal limiting groups 335 comprise vertical rails 3351 and second electric cylinders 3352, the vertical rails 3351 are welded and mounted on the inner side middle part of the arc-shaped arms 333, the inner two ends of the vertical rails 3351 are slidably connected with sliding blocks 3353, the second electric cylinders 3352 are screw-mounted on the outer side of the fixed round seats 332, the output ends of the second electric cylinders 3352 are screw-mounted with hinged frames 3354, the top and bottom of the hinged frames 3354 are hingedly connected with linkage rods 3355, one side of the sliding blocks 3353 close to the hinged frames 3354 is screw-mounted with a hinged piece 3356, the end of the linkage rod 3355 is hinged with the hinged piece 3356 on the sliding block 3353, and the sides of the sliding blocks 3353 close to each other are welded with inner connecting rods 3357. The inner ends of the inner connecting rods 3357 are fixedly connected with longitudinal clamping plates 3358, the two longitudinal clamping plates 3358 are used for preliminarily clamping and positioning the circular composite board on the inner side thereof, the hinged frame 3354 is driven to move outward by starting the second electric cylinder 3352, the hinged frame 3354 moves outward to drive the linkage rod 3355 to move outward and rotate, at this time, the sliding blocks 3353 are driven to slide close to each other in the vertical rails 3351 under the action of force, and then the sliding blocks 3353 drive the longitudinal clamping plates 3358 at the ends of the inner connecting rods 3357 to move close to each other to preliminarily clamp and position the circular composite board to be measured. During the application of the device, the limiting driving module 33 and the longitudinal limiting groups 335 are arranged, so that the preliminary clamping and positioning of the circular composite board to be measured can be completed by the structure cooperation of the longitudinal limiting groups 335 during use. The mounting arm 331 of the limiting driving module 33 is provided with the fixed round seat 332, the inner end of the fixed round seat 332 is mounted with the arc-shaped arm 333, the inner side middle part of the arc-shaped arm 333 is fixed with the longitudinal limiting groups 335, the longitudinal limiting groups 335 comprise the vertical rails 3351 and the second electric cylinders 3352, the inner two ends of the vertical rails 3351 are slidably connected with the sliding blocks 3353, the output ends of the second electric cylinders 3352 are screw-mounted with the hinged frames 3354, the top and bottom of the hinged frames 3354 are hingedly connected with the linkage rods 3355, the end of the linkage rod 3355 is hinged with the hinged piece 3356 on the sliding block 3353, and the sliding blocks 3353 are connected with the longitudinal clamping plates 3358 through the inner connecting rods 3357. When the circular composite board to be measured needs to be preliminarily clamped, the second electric cylinder 3352 is started, the second electric cylinder 3352 drives the hinged frame 3354 to move outward, the hinged frame 3354 moves outward to drive the linkage rod 3355 to move outward and rotate, under the action of force,The sliding block 3353 slides along the inside of the vertical rail 3351 to approach each other, and the sliding of the sliding block 3353 drives the synchronous movement of the inner connecting rod 3357, and then drives the two longitudinal clamping plates 3358 at the end of the inner connecting rod 3357 to approach each other, and finally realizes the preliminary clamping and limiting of the inner circular composite board to be tested. Such a design allows the longitudinal limiting group 335 to stably drive the longitudinal clamping plate 3358 to complete the preliminary clamping through the cooperation of the second electric cylinder 3352, the linkage rod 3355, the sliding block 3353 and the like. structure, without the need for manual adjustment of the clamping plate position, which not only ensures the accuracy of the preliminary clamping, but also simplifies the clamping operation process, ensures that the circular composite board to be tested can maintain a stable initial position during the subsequent detection process, avoids affecting the subsequent detection work due to unstable initial clamping, and meets the actual needs of preliminary positioning and clamping of the circular composite board to be tested.

[0043] It should be noted that: during use, pressure sensors can be installed on the inner side of the recessed frame 3341 close to the clamping guide wheel 3342 according to specific application requirements, for real-time monitoring of the clamping force of the clamping guide wheel 3342 on the circular composite board to be tested, to avoid damage to the board due to excessive clamping force or displacement of the board due to insufficient clamping force. Mainly to realize the closed-loop control of the clamping force during automatic operation, which can be installed and applied according to requirements; displacement sensors can be installed on the inner side of the arc-shaped arm 333 close to the edge of the board, for detecting the position deviation of the circular composite board to be tested during the centering and correcting process, and adjusting the operating parameters of the third motor 3262 in time when the deviation exceeds the preset range, to assist in realizing automatic centering and correcting. It can be installed and applied according to requirements; a speed sensor can be installed on the output shaft end of the fourth motor 3344 for monitoring the rotation speed of the clamping guide wheel 3342, and then adjusting the rotation rate of the circular composite board to be tested to ensure stable rotation of the board during detection and avoid affecting the accuracy of the coating thickness detection data due to uneven rotation speed. It can be installed and applied according to requirements; visual sensors can be installed on the fixed structure near the limiting clamp group 334 to identify the edge position and size of the circular composite board to be tested, automatically match the corresponding clamping parameters (such as the adjustment stroke of the third motor 3262), reduce the manual parameter setting steps, and improve the adaptation efficiency of automatic operation. It can be installed and applied according to requirements; in addition, position sensors can also be installed on the ends of the key moving parts of the device, such as the bidirectional screw 3263 and the unidirectional screw 314, to position the sliding block 3264. The movement stroke ensures accurate spacing adjustment of the two limiting drive modules 33, avoids unstable clamping due to stroke deviation, and can be installed and applied according to requirements.

[0044] The implementation principle of the ceramic composite board coating thickness measuring device provided in the embodiment of the application is as follows: when the device is used, initialization and placement preparation of the measured object are first performed; the base 1 serves as an overall support structure and provides a stable installation reference for the connecting arm 2 and the measured object clamping mechanism 3; the connecting arm 2 is provided with a machine box 41 at the top end through a bolt; the machine box 41 provides a core installation carrier for the detection mechanism 4; the operator places the circular measured composite board between the two limiting driving modules 33 of the measured object clamping mechanism 3; at this time, the transverse movement module 31 is at the initial position, and the spacing adjustment assembly 326 of the rotating module 32 remains in the open state, so as to ensure that the circular measured composite board can be smoothly placed; the initial setting process is simple and convenient, and the subsequent operation is not affected by the improper initial position;

[0045] Then, the measured object clamping and positioning process is started; the second electric cylinder 3352 outside the fixed circular seat 332 in the limiting driving module 33 is started first; the output end of the second electric cylinder 3352 pushes the hinged frame 3354 to move outward; the hinged frame 3354 drives the sliding block 3353 to slide along the interior of the vertical rail 3351 to move closer to each other through the linkage rod 3355; the sliding block 3353 drives the longitudinal clamping plate 3358 to move closer to each other synchronously through the inner connecting rod 3357; the lubricating balls 3359 on the inner side of the longitudinal clamping plate 3358 are in contact with the surface of the circular measured composite board, and the preliminary clamping and positioning is completed; then, the third motor 3262 outside the motor mounting plate 324 in the rotating module 32 is started; the third motor 3262 drives the bidirectional screw 3263 in the inner side of the side rail 3261 to rotate through the shaft coupling; since the threads at the two ends of the bidirectional screw 3263 are opposite in rotation direction, the two sliding blocks 3264 connected with the threads on the surface of the bidirectional screw 3263 slide along the inner side of the side rail 3261 to move closer to each other, thereby driving the limiting driving module 33 outside to move synchronously, so that the arc-shaped arms 333 of the two limiting driving modules 33 gradually move closer to the circumferential side of the circular measured composite board; the bidirectional screw 3263 is further driven to rotate by the third motor 3262, so that the two arc-shaped arms 333 move further closer to each other; the clamping guide wheels 3342 in the recessed frames 3341 at the two ends of the arc-shaped arms 333 are in contact with the circumferential side of the circular measured composite board; the V-shaped clamping guide grooves 3343 on the circumferential side of the clamping guide wheels 3342 are in contact with the surface of the circular measured composite board; meanwhile, the arc-shaped design of the arc-shaped arms 333 can fit the circular measured composite boards with different diameters, and the longitudinal clamping plate 3358 is used to center and correct the circular measured composite board, so that stable clamping is achieved.

[0046] After clamping and positioning, the top surface and the peripheral coating are detected in sequence. When detecting the top surface coating, first, the first electric cylinder 422 at the top of the side base plate 421 in the detection mechanism 4 is started, the output end of the first electric cylinder 422 drives the longitudinal movement of the bent connecting rod 423, so that the upper detection probe 424 at the outer end of the bent connecting rod 423 moves to a position with a top surface of the circular composite board to be detected at a distance meeting the detection requirements. Then, the first motor 313 on one side of the base 311 in the horizontal movement module 31 and the fourth motor 3344 at the top of the concave frame 3341 in the limiting clamp group 334 are started at the same time. The first motor 313 drives the one-way screw rod 314 inside the sliding groove 312 to rotate through the shaft coupling, the movable block 315 on the surface of the one-way screw rod 314 slides along the sliding groove 312, drives the rotary module 32 and the clamped circular composite board to move horizontally at the same time, and in this period, the fourth motor 3344 drives the clamping guide wheel 3342 to rotate, the clamping guide wheel 3342 is in frictional contact with the peripheral side of the circular composite board to be detected, drives the circular composite board to be detected to rotate inside the four clamping guide wheels 3342, through the linkage cooperation of the horizontal movement module 31 and the fourth motor 3344, the upper detection probe 424 can cover the horizontal and circumferential positions of the top surface of the circular composite board to be detected at the same time, the thickness gauge 43 collects the coating thickness data of different areas of the top surface in real time through the upper detection probe 424, and realizes comprehensive detection of the top surface. At the same time of linkage operation of the horizontal movement module 31 and the fourth motor 3344, the side detection probe 443 at the lower end of the side connecting arm 441 in the side detection module 44 keeps the same horizontal position with the circular composite board to be detected, the thickness gauge 43 is electrically connected with the side detection probe 443, the horizontal movement and rotation of the circular composite board to be detected can make the side detection probe 443 collect the coating thickness data of different longitudinal and circumferential positions of the peripheral side completely, and the peripheral side can be comprehensively detected without additional adjustment.

[0047] After the top surface and the peripheral side detection are completed, the bottom surface coating detection is performed, the fourth motor 3344 and the first motor 313 are closed, the rotation and the transverse movement of the circular composite board to be detected are stopped, the second motor 325 at the top end of the bending support 322 in the rotation module 32 is started, the second motor 325 drives the overall rotation of the spacing adjustment assembly 326 through the shaft coupling, the spacing adjustment assembly 326 drives the two limiting driving modules 33 and the clamped circular composite board to be detected to rotate synchronously by 180 degrees, so that the bottom surface of the circular composite board to be detected faces upward; then the linkage operation of the top surface detection is repeated, the first cylinder 422 is started to adjust the position of the upper detection probe 424, so that it is attached to the bottom surface of the circular composite board to be detected, then the first motor 313 and the fourth motor 3344 are started at the same time, the circular composite board to be detected is driven to move transversely through the transverse movement module 31, the fourth motor 3344 drives the circular composite board to be detected to rotate, the thickness gauge 43 collects the coating thickness data of different areas of the bottom surface through the upper detection probe 424, and the overall detection of the bottom surface is completed; if different sizes of the circular composite board to be detected need to be detected, only the third motor 3262 is started to drive the bidirectional screw 3263 to rotate, the spacing of the two sliding blocks 3264 is adjusted, and then the spacing of the two limiting driving modules 33 is changed, and the V-shaped clamping guide groove 3343 of the clamping guide wheel 3342 is matched, so that different diameters and thicknesses of the plate can be adapted without replacing the clamp. Through the cooperation of various structures of the device, the problems that the existing device can only detect a single surface, manual turning and poor adaptability are solved. The lubricating ball 3359 can reduce the friction between the rotating object and the longitudinal clamping plate 3358, reduce the driving load of the third motor 3262 and the fourth motor 3344, and ensure the stability of the device. At the same time, through the linkage cooperation of the transverse movement module 31 and the fourth motor 3344, combined with the functions of the upper detection module 42 and the side detection module 44, the coating thickness data of each surface can be quickly and comprehensively collected without manual turning to avoid damage to the plate, reduce the operation process and labor cost, realize the overall automatic detection of the top surface, the bottom surface and the peripheral side of the circular composite board to be detected, and greatly improve the practicality, detection efficiency and accuracy of the device.

[0048] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A ceramic composite board coating thickness measuring device, comprising a base (1), a connecting arm (2), a to-be-measured object clamping mechanism (3) and a detection mechanism (4), characterized in that; The connecting arm (2) is welded and installed at the middle part of the rear side of the base (1), the object clamping mechanism (3) is installed at the top of the base (1), and the detection mechanism (4) is fixedly installed at the top of the connecting arm (2); The detection mechanism (4) comprises a case (41), the case (41) is bolted to the top end of the connecting arm (2), one side of the case (41) is fixedly provided with an upper detection module (42), the inside of the case (41) is provided with a thickness gauge (43) through a screw, the detection end of the thickness gauge (43) is arranged at the moving end of the upper detection module (42), one side of the case (41) is bolted with a side detection module (44), and the side detection module (44) and the thickness gauge (43) are electrically connected; The object clamping mechanism (3) comprises a horizontal movement module (31), the horizontal movement module (31) is fixedly installed at the top of the base (1), the moving end of the horizontal movement module (31) is fixedly provided with a rotating module (32), both moving ends of the rotating module (32) are fixedly connected with a limiting driving module (33), and a circular object to be detected composite board is clamped between the inner sides of the two limiting driving modules (33); The upper detection module (42) comprises a side base plate (421), the side base plate (421) is welded to the middle part of one side of the case (41) away from the side detection module (44), the top of the side base plate (421) is bolted with a first electric cylinder (422), the bottom output end of the first electric cylinder (422) is fixedly provided with a bent connecting rod (423) penetrating through the side base plate (421), and the outer end of the bent connecting rod (423) is bolted with an upper detection probe (424), and the upper detection probe (424) is electrically connected with the thickness gauge (43) through wires. The side detection module (44) comprises a side connecting arm (441), the side connecting arm (441) is welded and installed at the middle part of one side of the case (41) away from the side base plate (421), the outer side of the lower end of the side connecting arm (441) is bolted with a PLC controller (442), the lower end of one side of the side connecting arm (441) close to the first electric cylinder (422) is bolted with a side detection probe (443) through a screw, and the side detection probe (443) is electrically connected with the thickness gauge (43) through wires. The horizontal moving module (31) comprises a base (311) integrally arranged on one side of the top of the base (1), a sliding groove (312) is formed in the inner side of the base (311), the sliding groove (312) extends in the base (1) and penetrates the base (1), a first motor (313) is installed on the middle of one side of the base (311) close to the side connecting arm (441) through screws, a unidirectional screw rod (314) is rotatably arranged in the inner side of the sliding groove (312) through a ball bearing, the end of the unidirectional screw rod (314) is connected with the output end of the first motor (313) through a shaft coupling, a movable block (315) is movably arranged in the inner side of the sliding groove (312), the movable block (315) is threadedly connected with the outer surface of the unidirectional screw rod (314), the movable block (315) can be driven to slide in the sliding groove (312) by the unidirectional screw rod (314), and the rotating module (32) is welded and installed on the outer side of the movable block (315). The rotating module (32) comprises a connecting main frame (321), the connecting main frame (321) is slidably arranged in the inner side of the sliding groove (312), one end of the connecting main frame (321) close to the second motor (325) is welded with the outer side of the movable block (315), a bending support (322) is fixedly installed on the outer side of the connecting main frame (321), a ring-shaped frame (323) is welded and installed on the top end of the bending support (322), a motor mounting plate (324) is welded and installed on the inner side of the ring-shaped frame (323), the second motor (325) is installed on the outer side of the motor mounting plate (324) through screws, and a distance adjusting assembly (326) is arranged on the side of the motor mounting plate (324) away from the second motor (325).

2. The ceramic composite plate coating thickness measuring device according to claim 1, characterized in that: The distance adjusting assembly (326) comprises a side rail (3261), the side rail (3261) is rotatably arranged on the side of the motor mounting plate (324) away from the second motor (325) through a rotating shaft, one end of the side rail (3261) is connected with the output end of the second motor (325) through a shaft coupling, a third motor (3262) is installed on one end of the side rail (3261) through screws, the third motor (3262) is powered through a conductive slip ring, a bidirectional screw rod (3263) is rotatably arranged in the inner side of the side rail (3261) through a ball bearing, the thread rotation directions of the two ends of the bidirectional screw rod (3263) are opposite, one end of the bidirectional screw rod (3263) is connected with the output end of the third motor (3262) through a shaft coupling, and sliding blocks (3264) are threadedly connected with the two ends of the bidirectional screw rod (3263).

3. The ceramic composite plate coating thickness measuring device according to claim 2, characterized in that: The limiting driving module (33) comprises a mounting arm (331) welded to one side of the sliding block (3264) away from the second motor (325), the mounting arms (331) on the two sliding blocks (3264) are symmetrically arranged, and the end of the mounting arm (331) away from the sliding block (3264) is welded with a fixed circular seat (332), the inner end of the fixed circular seat (332) is welded with an arc-shaped arm (333), both ends of the arc-shaped arm (333) are provided with a limiting clamp group (334), and the inner side of the arc-shaped arm (333) is fixedly provided with a longitudinal limiting group (335).

4. The ceramic composite plate coating thickness measuring device according to claim 3, characterized in that: The longitudinal limiting group (335) comprises a vertical rail (3351) and a second electric cylinder (3352), the vertical rail (3351) is welded to the inner side of the arc-shaped arm (333), both ends of the vertical rail (3351) are slidably connected with sliding blocks (3353), the second electric cylinder (3352) is screwed to the outer side of the fixed circular seat (332), the output end of the second electric cylinder (3352) is screwed with a hinged frame (3354), the top and bottom of the hinged frame (3354) are hingedly connected with linkage rods (3355), the side of the sliding block (3353) close to the hinged frame (3354) is screwed with a hinge part (3356), the end of the linkage rod (3355) is hingedly connected with the hinge part (3356), and the sides of the sliding blocks (3353) close to each other are welded with inner connecting rods (3357).

5. The ceramic composite board coating thickness measuring device of claim 4, wherein: The limiting clamp group (334) comprises a concave frame (3341) integrally arranged at both ends of the arc-shaped arm (333), the inner side of the concave frame (3341) is rotatably connected with a clamping guide wheel (3342), the circumferential side of the clamping guide wheel (3342) is provided with a V-shaped clamping guide groove (3343), the top of one concave frame (3341) is screwed with a fourth motor (3344), and the output end of the fourth motor (3344) is connected with the top of the clamping guide wheel (3342) through a shaft coupling.

6. The ceramic composite panel coating thickness measuring device of claim 5, wherein: The inner side of the longitudinal clamping plate (3358) is rotatably connected with lubricating balls (3359) at equal intervals, and the inner side of the lubricating ball (3359) is rollingly connected with the surface of the circular composite board.

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