Inner hole thermal spraying thickness measuring device

Abstract

The invention relates to the technical field of measuring devices, and provides an inner hole thermal spraying thickness measuring device, which comprises a mounting rack, a connecting plate and a protective frame, a fixed handle is welded and fixed on the top end surface of the mounting rack, a stepping displacement assembly is mounted at the bottom of the mounting rack, an adjusting and measuring assembly is mounted on the connecting plate, and the protective frame is fixed on the mounting rack. A guide frame is welded and fixed to the bottom of the mounting frame, a second reset spring is welded and fixed to the top end face of the guide frame, a second clamping rod is welded and fixed to the top end of the second reset spring, the second clamping rod is slidably connected into the guide frame, and a sliding plate is slidably connected into the guide frame in a limited mode; a second clamping groove is formed in the top of the sliding plate, and the end of the second clamping rod is connected into the second clamping groove in a clamped mode. By means of the technical scheme, the problem that an inner hole thermal spraying thickness measuring device in the prior art cannot automatically, stably and comprehensively measure the thickness of inner hole thermal spraying coatings with different diameters and different depths is solved.

Description

Technical Field

[0001] The invention relates to the technical field of measuring devices, and in particular to an inner hole thermal spraying thickness measuring device. Background Art

[0002] Drilling inner holes is a common operation in machining shaft workpieces, and workbenches or molds also need to drill inner holes during the machining process. Drilling inner holes can be used to connect other components, install bearings, adjust fitting clearances or achieve other functions. In order to improve the wear resistance, corrosion resistance, high temperature resistance and other properties of the inner hole surface, it is necessary to thermally spray the opened inner hole surface. Since the thickness of the coating directly affects its wear resistance, corrosion resistance, oxidation resistance and other properties, after thermal spraying, the inner hole needs to be measured with a measuring device to measure the thickness of the thermal spray coating of the inner hole.

[0003] During operation, the existing inner hole thermal spraying thickness measuring device can usually only measure the thickness of one or more places of the inner hole. However, when the inner hole is thermally sprayed, the inner wall of the inner hole is fully sprayed. The thickness measurement at one or more places cannot represent the pass of the overall thermal spraying coating thickness of the inner hole. Moreover, since the inner hole diameters and depths on different workpieces are different, the existing inner hole thermal spraying thickness measuring device cannot automatically and stably measure the thickness of the inner hole thermal spraying coating of different diameters and depths during actual operation, and its practicality and applicability are poor. Moreover, during operation, the existing inner hole thermal spraying thickness measuring device cannot be positioned and fixed on workpieces of different sizes, and thus cannot guarantee the accuracy and stability of subsequent measurement work. Therefore, it is necessary to provide an inner hole thermal spraying thickness measuring device to meet the needs of users. Summary of the invention

[0004] The present invention proposes an inner hole thermal spraying thickness measuring device, which solves the problems that the inner hole thermal spraying thickness measuring device in the related art cannot automatically and stably perform comprehensive measurement of the thickness of inner hole thermal spraying coatings of different diameters and depths, and cannot be positioned and fixed on workpieces of different sizes.

[0005] The technical solution of the present invention is as follows: A device for measuring the thickness of inner hole thermal spraying comprises a mounting frame, a connecting plate and a protective frame, a fixed handle is welded and fixed on the top surface of the mounting frame, a step shift assembly is installed on the bottom of the mounting frame, an adjustment and measurement assembly is installed on the connecting plate, a guide frame is welded and fixed on the bottom of the mounting frame, a second return spring is welded and fixed on the top surface of the guide frame, a second clamping rod is welded and fixed on the top of the second return spring, the second clamping rod is slidably connected in the guide frame, a sliding plate is slidably connected in the guide frame, a second clamping groove is provided on the top of the sliding plate, and the end of the second clamping rod is clamped and connected The cam is secured to the bottom of the second support plate and is provided with a support plate which is welded to the bottom of the support plate. A third slot and a fourth slot are provided on the fixed block. A rotating shaft is welded to the fixed block. The second fixed plate is rotatably connected to the rotating shaft. A third return spring is welded to the second fixed plate. A third clamping rod is welded to the other end of the third return spring. The third clamping rod penetrates and is slidably connected to the second fixed plate. A supporting plate is welded to the bottom of the second fixed plate. A plug tube is welded to the supporting plate. A rubber suction cup is connected to the bottom of the plug tube.

[0006] As a preferred scheme of the present invention, wherein: the step shift assembly includes a first connecting frame, the first connecting frame is welded and fixed on the bottom end surface of the mounting frame, a servo motor is welded and fixed on the top end surface of the first connecting frame, the output shaft of the servo motor is rotatably connected to the first connecting frame, a turntable is welded and fixed on the output shaft of the servo motor, the turntable is rotatably connected to the bottom of the first connecting frame through a bearing, a first fixed plate is welded and fixed on the top end surface of the first connecting frame, a first connecting shaft is rotatably connected to the first fixed plate, a coil and a first worm gear are welded and fixed on the first connecting shaft, a first worm is meshingly connected to the first worm gear, the bottom end of the first worm gear is rotatably connected to the top end surface of the turntable, the output shaft of the servo motor is connected to the center part of the turntable, the first worm gears are symmetrically distributed on both sides of the turntable, the first worm gears correspond one-to-one to the first worm gear, and the first worm gear corresponds one-to-one to the coil through the first connecting shaft.

[0007] As a preferred solution of the present invention, wherein: a circular gear is welded and fixed to the top end of the first worm gear, a rack is meshingly connected to the circular gear, the rack is welded and fixed to the inner side end surface of the first connecting frame, a first telescopic sleeve rod and a second telescopic sleeve rod are welded and fixed to the bottom end surface of the turntable, the bottom end of the first telescopic sleeve rod and the bottom end of the second telescopic sleeve rod are both welded and fixed to the top end surface of the connecting plate, the cross-section of the first telescopic sleeve rod and the cross-section of the second telescopic sleeve rod are both rectangular, a reinforcing spring is welded and fixed inside the first telescopic sleeve rod, a traction rope is wound around the coil, the traction rope passes through and is slidably connected to the turntable and the first telescopic sleeve rod, and the bottom end of the traction rope is fixedly connected to the inner bottom end surface of the first telescopic sleeve rod.

[0008] As a preferred solution of the present invention, wherein: the first worm corresponds to the rack one-to-one through a circular gear, the two racks are symmetrically distributed on both sides of the first connecting frame, the rack is arc-shaped, the second telescopic sleeve is fixed to the bottom center of the turntable, the first telescopic sleeve is symmetrically distributed on both sides of the bottom of the turntable, and the first telescopic sleeve corresponds to the coil one-to-one through a traction rope.

[0009] As a preferred solution of the present invention, the adjustment and measurement assembly comprises a second connecting frame, a third telescopic sleeve rod, a mounting block and a storage frame, a dial is welded and fixed on the top surface of the second connecting frame, a second worm is rotatably connected to the second connecting frame, a benchmark is welded and fixed to the second worm, a second worm wheel is meshingly connected to the second worm, a second connecting shaft is welded and fixed to the second worm wheel, the second connecting shaft is rotatably connected in the second connecting frame, an adjusting rod is welded and fixed to the second connecting shaft, two second connecting frames are provided, and the two second connecting frames are symmetrically distributed on both sides of the second telescopic sleeve rod, the dial is annular, the dial is fixed at the top center of the second connecting frame, the second worm is connected to the top center of the second connecting frame, the second worm wheels are symmetrically distributed on both sides of the second worm, the second worm wheel corresponds to the second connecting shaft one by one, the bottom of the adjusting rod on the second connecting shaft on one side is hinged on the side end surface of the connecting plate, and the bottom of the adjusting rod on the second connecting shaft on the other side is hinged with an adjusting plate.

[0010] As a preferred scheme of the present invention, one end of the third telescopic sleeve rod is welded and fixed on the top surface of the adjusting plate, and the other end of the third telescopic sleeve rod is welded and fixed on the top surface of the connecting plate, and a guide rod and a connecting spring are welded and fixed in the adjusting plate, and the connecting spring is sleeved on the guide rod, and the guide rod upper limit sliding connection is provided with a guide block, and the other end of the connecting spring is welded and fixed on the side end surface of the guide block, and the bottom end surface of the guide block is welded and fixed with a connecting frame, and the side end surface of the connecting frame is welded and fixed with a first return spring, and the other end of the first return spring is welded and fixed with a first clamping rod, and the first clamping rod passes through and is slidably connected to the side end of the connecting frame, and the side end of the mounting block is provided with a first clamping groove, and the end of the first clamping rod is clamped and connected in the first clamping groove, and a probe is installed on the mounting block, and the guide block is fixed in the middle part of the top end of the connecting frame, and the first clamping rod is symmetrically distributed on both sides of the connecting frame, and the first clamping rod corresponds to the first clamping groove one by one.

[0011] As a preferred solution of the present invention, wherein: a connecting cable is connected to the measuring head, and the other end of the connecting cable is connected to a coating thickness gauge, the coating thickness gauge is bolted to a mounting plate, and the mounting plate is welded and fixed to the bottom end surface of the turntable, the connecting cable and the storage frame are through-slidingly connected, a third connecting shaft is rotatably connected in the storage frame, a reel is welded and fixed on the third connecting shaft, the connecting cable is through-fixed in the middle of the reel, the connecting cable is wound around the reel, a limiting frame is welded and fixed in the storage frame, a spiral spring is welded and fixed in the limiting frame, and the inner end of the spiral spring is welded and fixed on the third connecting shaft.

[0012] As a preferred solution of the present invention, wherein: the guide frames are symmetrically distributed on both sides of the mounting frame, the guide frames correspond one-to-one to the second clamping rod and the sliding plate respectively, the second clamping grooves are equidistantly distributed on the sliding plate, the sliding plate corresponds one-to-one to the fixed block through the support rod, the third clamping groove and the fourth clamping groove are symmetrically distributed on the front and rear sides of the fixed block, the second fixed plate is symmetrically distributed on the front and rear sides of the fixed block, and the second fixed plate corresponds one-to-one to the third clamping rod.

[0013] As a preferred solution of the present invention, a filter plate is welded and fixed to the top of the plug tube, a threaded rod is threadedly connected to the filter plate, a connecting block is rotatably connected to the bottom end of the threaded rod, a rubber piston is fixedly connected to the bottom end of the connecting block, the rubber piston is slidably connected in the plug tube, a positioning block is welded and fixed to the side end face of the support plate, a positioning groove is provided on the bottom side end of the protective frame, the positioning block is snap-connected in the positioning groove, and a rubber plate is fixedly connected to the top of the protective frame.

[0014] As a preferred solution of the present invention, there are four plug tubes, which are evenly distributed around the support plate, the top end surface of the plug tube is flush with the top end surface of the filter plate, the plug tube and the rubber piston are both rectangular, the bottom end surface height of the rubber suction cup is lower than the bottom end surface height of the support plate, the side end surface of the support plate is in contact with the bottom side end surface of the protective frame, the top end surface of the protective frame is in contact with the bottom end surface of the mounting frame, and two rubber plates are provided, which are symmetrically distributed on both sides of the top of the protective frame, and the rubber plates on both sides are in contact with each other.

[0015] The working principle and beneficial effects of the present invention are: 1. The present invention is provided with a step-shift assembly, which can drive the turntable to rotate stably by utilizing a servo motor, thereby driving the first telescopic sleeve rods on both sides and the coils on both sides to perform synchronous circular motion, and can drive the adjustment and measurement assembly to perform synchronous circular motion in cooperation with the second telescopic sleeve rod and the connecting plate. At the same time, during the rotation of the turntable, under the intermittent meshing action of the circular gear and the rack, the coil on the first worm gear can be driven to rotate intermittently through the first worm gear, thereby realizing the intermittent unwinding of the traction rope, and in cooperation with the strengthening spring in the first telescopic sleeve rod, the adjustment and measurement assembly can be driven to move downward intermittently during the circular motion through the connecting plate, thereby realizing the automatic step-shift work of the adjustment and measurement assembly, and by adjusting the step-shift distance, the thickness of the inner hole thermal spray layer of different depths can be automatically and stably measured comprehensively, thereby effectively improving the working efficiency of the measuring device, and at the same time increasing the practicality and applicability of the measuring device.

[0016] 2. The present invention is provided with an adjustment measuring assembly, which utilizes the meshing drive between the second worm and the second worm gear to conveniently and stably adjust the spacing between the two side probes in a large range through the adjustment rod, thereby effectively improving the application range of the measuring device, so that the measuring device can conveniently and stably perform thermal spray thickness measurement on inner holes of different diameters, and by rotating the adjustment rods on both sides, the measuring device can be conveniently folded as a whole, ensuring the convenience of subsequent carrying and transportation of the measuring device; and during the operation of the stepping shift assembly, the probes on both sides can be driven to move downward intermittently during the circular motion, thereby being able to perform comprehensive measurement of various locations in the inner hole of the workpiece from top to bottom, making up for the defect that the existing measuring device cannot perform comprehensive measurement and is prone to errors, and further improving the working efficiency of the measuring device; and under the cooperation of the first clamping rod and the first clamping groove, the probe can be conveniently and stably disassembled and installed, thereby ensuring the convenience of subsequent inspection and maintenance of the probe, and effectively improving the service life of the measuring device.

[0017] 3. The present invention is provided with a sliding plate, a fixed block and a rubber suction cup. The cooperation of the second clamping rod and the second clamping groove can conveniently and stably extend and store the sliding plates on both sides, and then the working positions of the support plates on both sides can be conveniently adjusted according to actual conditions. When measuring the thickness of the inner hole thermal spraying on the workbench or the mold, the support plates on both sides can be moved to appropriate positions, and combined with each rubber suction cup to adsorb and fix them, so as to ensure the stability of the subsequent working state of the stepping shift component and the adjustment measurement component; and when it is necessary to measure the thickness of the inner hole thermal spraying of shaft parts or pipes, the cooperation of the third clamping rod, the third clamping groove and the fourth clamping groove can be used to simultaneously rotate the support plates on both sides 90° to the middle, so as to drive each rubber suction cup to contact the outer wall of the shaft parts or pipes, so that the overall measuring device can be conveniently and stably adsorbed and fixed on the outer wall of the shaft parts or pipes, so as to ensure the convenience and stability of subsequent measurement work, save time and effort, and increase the diversity and convenience of use of the measuring device.

[0018] 4. The present invention is provided with a protection frame. After the measuring work is completed, the stepping shift assembly and the adjusting measuring assembly can be covered with the protection frame for protection, and the protection frame can be conveniently and stably snap-fitted and fixed by moving the two side support plates toward the middle in combination with the positioning blocks and positioning grooves, thereby ensuring the stability of the working state of the protection frame, conveniently realizing the protection work of the entire device, and ensuring the stability and safety of the subsequent carrying and transportation work of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the connection structure of the support plate and the positioning block of the present invention; Figure 3 It is a schematic diagram of the connection structure between the protection frame and the rubber plate of the present invention; Figure 4 It is a schematic diagram of the connection structure between the limit frame and the scroll spring of the present invention; Figure 5 It is a schematic diagram of the connection structure of the cable and the reel of the present invention; Figure 6 It is a schematic diagram of the overall main structure of the present invention; Figure 7 It is a schematic diagram of the main cross-sectional structure of the sliding plate of the present invention; Figure 8 It is a schematic diagram of the connection structure between the support plate and the plug pipe of the present invention; Fig. 9 It is a schematic diagram of the main cross-sectional structure of the support plate of the present invention; Fig.10It is a schematic diagram of the top view of the support plate of the present invention; Fig.11 It is a schematic diagram of the top-sectional structure of the fixing block of the present invention; Fig.12 The present invention Figure 6 The enlarged structural diagram at A in the middle; Fig.13 The present invention Figure 6 The enlarged structural diagram at B in the middle; Fig.14 It is a schematic diagram of the top view of the structure of the third telescopic sleeve rod of the present invention; Fig.15 It is a schematic diagram of the main structure of the adjusting rod of the present invention; Fig.16 It is a schematic diagram of the main cross-sectional structure of the second connection frame of the present invention; Fig.17 It is a schematic diagram of the structure of the scale plate of the present invention from a top view; Fig.18 It is a schematic diagram of the main cross-sectional structure of the regulating plate of the present invention; Fig.19 is a schematic diagram of a side sectional structure of a second connection frame of the present invention; Fig. 20 It is a schematic diagram of the side cross-sectional structure of the adjustment plate of the present invention; Fig.21 It is a schematic diagram of the side view structure of the first telescopic sleeve rod of the present invention; Fig. 22 It is a schematic diagram of the side sectional structure of the first connection frame of the present invention; Fig.23 is a schematic diagram of a top-sectional structure of a first connection frame of the present invention; Fig.24 It is a schematic diagram of the top view of the rack structure of the present invention; Fig.25 It is a schematic diagram of the side sectional structure of the storage frame of the present invention.

[0021] In the figure: 1, mounting frame; 2, fixing handle; 3, stepping shift assembly; 301, first connecting frame; 302, servo motor; 303, turntable; 304, first fixing plate; 305, first connecting shaft; 306, coil; 307, first worm wheel; 308, first worm; 309, circular gear; 310, rack; 311, traction rope; 312, first telescopic sleeve; 313, strengthening spring; 314, second telescopic sleeve; 4, connecting plate; 5, adjusting measurement assembly; 501, second connecting frame; 502, dial; 503, second worm; 504, benchmark; 505, second worm wheel; 506, second connecting shaft; 507, adjusting rod; 508, adjusting plate; 509, third telescopic sleeve; 510, guide rod; 511, connecting spring; 512, guide block; 513, connecting frame; 514, first a return spring; 515, a first clamping rod; 516, a mounting block; 517, a first clamping slot; 518, a probe; 519, a connecting cable; 520, a coating thickness gauge; 521, a mounting plate; 522, a storage frame; 523, a third connecting shaft; 524, a reel; 525, a limit frame; 526, a scroll spring; 6, a guide frame; 7, a second return spring; 8, a second clamping rod; 9, a sliding plate; 10, a second clamping rod; slot; 11. support rod; 12. fixing block; 13. third slot; 14. fourth slot; 15. rotating shaft; 16. second fixing plate; 17. third return spring; 18. third clamping rod; 19. supporting plate; 20. plug tube; 21. filter plate; 22. threaded rod; 23. rubber piston; 24. rubber suction cup; 25. positioning block; 26. protective frame; 27. positioning slot; 28. rubber plate; 29. ​​connecting block. DETAILED DESCRIPTION

[0022] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1, as Figure 1 to Figure 25As shown, the present embodiment proposes an inner hole thermal spraying thickness measuring device, including a mounting frame 1, a connecting plate 4 and a protective frame 26, a fixed handle 2 is welded and fixed on the top surface of the mounting frame 1, a step shift assembly 3 is installed at the bottom of the mounting frame 1, an adjustment measuring assembly 5 is installed on the connecting plate 4, a guide frame 6 is welded and fixed at the bottom of the mounting frame 1, a second reset spring 7 is welded and fixed on the top surface of the guide frame 6, a second clamping rod 8 is welded and fixed on the top of the second reset spring 7, the second clamping rod 8 is slidably connected in the guide frame 6, a sliding plate 9 is limitedly slidably connected in the guide frame 6, a second clamping groove 10 is opened at the top of the sliding plate 9, the end of the second clamping rod 8 is clamped and connected in the second clamping groove 10, a support rod 11 is welded and fixed on the bottom end surface of the sliding plate 9, a fixed block 12 is welded and fixed at the bottom end of the support rod 11, a third clamping groove 13 and a fourth clamping groove 14 are opened on the fixed block 12, a rotating shaft 15 is welded and fixed on the fixed block 12, and a first clamping groove 15 is rotatably connected to the rotating shaft 15 A second fixed plate 16 is welded and fixed with a third return spring 17, and a third clamping rod 18 is welded and fixed to the other end of the third return spring 17. The third clamping rod 18 penetrates and is slidably connected to the second fixed plate 16, and a support plate 19 is welded and fixed to the bottom end surface of the second fixed plate 16, and a plug tube 20 is welded and fixed to the support plate 19. A rubber suction cup 24 is connected to the bottom of the plug tube 20. The measuring range can be conveniently and stably adjusted over a large range by adjusting the measuring component 5, thereby effectively improving the applicable scope of the measuring device, so that the measuring device can conveniently and stably perform thermal spray thickness measurement on inner holes of different diameters, and combined with the step shift component 3, the measuring component 5 can be driven to move down intermittently during the circular motion, thereby being able to perform comprehensive measurement of the inner hole of the workpiece from top to bottom, thereby making up for the defect that the existing measuring device cannot perform comprehensive measurement and is prone to errors, and further improving the working efficiency of the measuring device.

[0024] Embodiment 2, as Figure 1 to Figure 25 As shown, based on the same concept as the above-mentioned embodiment 1, this embodiment also proposes an inner hole thermal spraying thickness measuring device.

[0025] In this embodiment, the stepping shift assembly 3 includes a first connecting frame 301, the first connecting frame 301 is welded and fixed on the bottom end surface of the mounting frame 1, a servo motor 302 is welded and fixed on the top end surface of the first connecting frame 301, the output shaft of the servo motor 302 is rotatably connected to the first connecting frame 301, a turntable 303 is welded and fixed on the output shaft of the servo motor 302, the turntable 303 is rotatably connected to the bottom of the first connecting frame 301 through a bearing, a first fixed plate 304 is welded and fixed on the top end surface of the first connecting frame 301, a first connecting shaft 305 is rotatably connected to the first fixed plate 304, a coil 306 and a first worm gear 307 are welded and fixed on the first connecting shaft 305, and a first worm gear 307 is meshingly connected to the first worm gear 307. 08, the bottom end of the first worm 308 is rotatably connected to the top surface of the turntable 303, the output shaft of the servo motor 302 is connected to the center of the turntable 303, the first worm 308 is centrally symmetrically distributed on both sides of the turntable 303, the first worm 308 corresponds to the first worm wheel 307 one by one, the first worm wheel 307 corresponds to the coil 306 one by one through the first connecting shaft 305, a circular gear 309 is welded and fixed to the top of the first worm 308, a rack 310 is meshed and connected to the circular gear 309, the rack 310 is welded and fixed to the inner side end surface of the first connecting frame 301, a first telescopic sleeve rod 312 and a second telescopic sleeve rod 314 are welded and fixed to the bottom end surface of the turntable 303, the bottom end of the first telescopic sleeve rod 312 and the second The bottom ends of the telescopic sleeve rods 314 are welded and fixed on the top surface of the connecting plate 4. The cross-sections of the first telescopic sleeve rod 312 and the second telescopic sleeve rod 314 are both rectangular. A reinforcing spring 313 is welded and fixed inside the first telescopic sleeve rod 312. A traction rope 311 is wound around the coil 306. The traction rope 311 penetrates and slides through the turntable 303 and the first telescopic sleeve rod 312. The bottom end of the traction rope 311 is fixedly connected to the inner bottom end surface of the first telescopic sleeve rod 312. The first worm 308 corresponds to the rack 310 one by one through the circular gear 309. The two racks 310 are symmetrically distributed on both sides of the first connecting frame 301. The rack 310 is in an arc shape. The second telescopic sleeve rod 314 is fixed to the bottom of the turntable 303. In the central part, the first telescopic sleeve rod 312 is symmetrically distributed on both sides of the bottom of the turntable 303. The first telescopic sleeve rod 312 corresponds to the coil 306 one by one through the traction rope 311. The servo motor 302 can drive the turntable 303 to rotate stably, and then drive the first telescopic sleeve rod 312 on both sides and the coil 306 on both sides to perform synchronous circular motion, and cooperate with the second telescopic sleeve rod 314 and the connecting plate 4 to drive the adjustment and measurement component 5 to perform synchronous circular motion. At the same time, during the rotation of the turntable 303, under the intermittent meshing action of the circular gear 309 and the rack 310, the first worm 308 can drive the coil 306 on the first worm wheel 307 to rotate intermittently, so as to realize the intermittent unwinding of the traction rope 311.In cooperation with the reinforcing spring 313 in the first telescopic sleeve rod 312, the adjusting and measuring assembly 5 can be driven to intermittently move downward during the circular motion through the connecting plate 4, so as to realize the automatic stepping displacement of the adjusting and measuring assembly 5. By adjusting the stepping displacement distance, the thickness of the thermal spray coating of the inner hole at different depths can be automatically and stably measured comprehensively.

[0026] In this embodiment, the adjustment and measurement component 5 includes a second connecting frame 501, a third telescopic sleeve rod 509, a mounting block 516 and a storage frame 522. A dial 502 is welded and fixed on the top surface of the second connecting frame 501. A second worm 503 is rotatably connected to the second connecting frame 501. A benchmark rod 504 is welded and fixed to the second worm 503. A second worm gear 505 is meshed and connected to the second worm 503. A second connecting shaft 506 is welded and fixed to the second worm gear 505. The second connecting shaft 506 is rotatably connected to the second connecting frame 501. An adjusting rod 507 is welded and fixed to the second connecting shaft 506. Two second connecting frames 501 are provided. The two second connecting frames 501 are symmetrically distributed on both sides of the second telescopic sleeve rod 314. The dial 502 is annular and fixed to the top center of the second connecting frame 501. The second worm 503 is connected to the second connecting frame 501. Connected to the top center of the second connecting frame 501, the second worm gear 505 is symmetrically distributed on both sides of the second worm 503, and the second worm gear 505 corresponds to the second connecting shaft 506 one by one. The bottom of the adjusting rod 507 on the second connecting shaft 506 on one side is hinged on the side end surface of the connecting plate 4, and the bottom of the adjusting rod 507 on the second connecting shaft 506 on the other side is hinged with an adjusting plate 508. By utilizing the meshing drive between the second worm 503 and the second worm gear 505, the spacing between the two side probes 518 can be conveniently and stably adjusted over a large range through the adjusting rod 507, thereby effectively improving the application range of the measuring device, so that the measuring device can conveniently and stably perform thermal spray thickness measurement on inner holes of different diameters, and by rotating the adjusting rods 507 on both sides, the measuring device as a whole can be conveniently folded to ensure the convenience of subsequent carrying and transportation of the measuring device.

[0027] In this embodiment, one end of the third telescopic sleeve rod 509 is welded and fixed on the top surface of the adjustment plate 508, and the other end of the third telescopic sleeve rod 509 is welded and fixed on the top surface of the connecting plate 4. A guide rod 510 and a connecting spring 511 are welded and fixed in the adjustment plate 508. The connecting spring 511 is sleeved on the guide rod 510. The guide rod 510 is slidably connected with a guide block 512 in the upper limit position. The other end of the connecting spring 511 is welded and fixed on the side end surface of the guide block 512. A connecting frame 513 is welded and fixed on the bottom end surface of the guide block 512. A first return spring 514 is welded and fixed on the side end surface of the connecting frame 513. A first clamping rod 515 is welded and fixed to the other end of the first return spring 514, and the first clamping rod 515 penetrates and is slidably connected to the side end of the connecting frame 513. A first clamping groove 517 is provided at the side end of the mounting block 516, and the end of the first clamping rod 515 is clamped and connected in the first clamping groove 517. A probe 518 is installed on the mounting block 516, and the guide block 512 is fixed to the middle part of the top of the connecting frame 513. The first clamping rod 515 is symmetrically distributed on both sides of the connecting frame 513, and the first clamping rod 515 corresponds to the first clamping groove 517 one by one. A connecting cable 519 is connected to the probe 518, and the other end of the connecting cable 519 is connected to a coating. Layer thickness gauge 520, coating thickness gauge 520 is bolted to mounting plate 521, mounting plate 521 is welded and fixed to the bottom surface of turntable 303, connecting cable 519 and storage frame 522 are through-slidingly connected, a third connecting shaft 523 is rotatably connected in storage frame 522, a reel 524 is welded and fixed on the third connecting shaft 523, connecting cable 519 is through-fixed in the middle of reel 524, connecting cable 519 is wound around reel 524, a limited position frame 525 is welded and fixed in storage frame 522, a spiral spring 526 is welded and fixed in limit frame 525, the inner end of spiral spring 526 is welded and fixed in On the third connecting shaft 523, during the operation of the stepping shift assembly 3, it can drive the probes 518 on both sides to move downward intermittently during the circular motion, so that comprehensive measurement of all parts of the inner hole of the workpiece can be performed from top to bottom, which makes up for the defect that the existing measuring device cannot perform comprehensive measurement and is prone to errors, and further improves the working efficiency of the measuring device; and under the cooperation of the first clamping rod 515 and the first clamping groove 517, the probe 518 can be conveniently and stably disassembled and installed, thereby ensuring the convenience of subsequent inspection and maintenance of the probe 518, and effectively improving the service life of the measuring device.

[0028] In this embodiment, the guide frames 6 are symmetrically distributed on both sides of the mounting frame 1, and the guide frames 6 correspond to the second clamping rods 8 and the sliding plates 9 one by one, respectively. The second clamping grooves 10 are equidistantly distributed on the sliding plates 9, and the sliding plates 9 correspond to the fixed blocks 12 one by one through the support rods 11. The third clamping grooves 13 and the fourth clamping grooves 14 are symmetrically distributed on the front and rear sides of the fixed blocks 12, and the angle between the third clamping grooves 13 and the fourth clamping grooves 14 is 90°. The second fixed plates 16 are symmetrically distributed on the front and rear sides of the fixed blocks 12, and the second fixed plates 16 correspond to the third clamping rods 18 one by one. By using the cooperation of the second clamping rods 8 and the second clamping grooves 10, the sliding plates 9 on both sides can be conveniently and stably extended and stored, and then the working positions of the support plates 19 on both sides can be conveniently adjusted according to actual conditions. Quick adjustment: when measuring the thermal spraying thickness of the inner hole on the workbench or the mold, the support plates 19 on both sides can be moved to the appropriate position, and combined with each rubber suction cup 24 for adsorption and fixation, so as to ensure the stability of the subsequent working state of the stepping shift component 3 and the adjustment and measurement component 5; and when it is necessary to measure the thermal spraying thickness of the inner hole of shaft parts or pipes, the third clamping rod 18, the third clamping slot 13 and the fourth clamping slot 14 can be used to simultaneously rotate the support plates 19 on both sides 90° to the middle, so as to drive each rubber suction cup 24 to contact the outer wall of the shaft parts or pipes, so that the measuring device as a whole can be conveniently and stably adsorbed and fixed on the outer wall of the shaft parts or pipes, so as to ensure the convenience and stability of subsequent measurement work, saving time and effort.

[0029] In this embodiment, a filter plate 21 is welded and fixed to the top of the plug tube 20, a threaded rod 22 is threadedly connected to the filter plate 21, a connecting block 29 is rotatably connected to the bottom end of the threaded rod 22, a rubber piston 23 is fixedly connected to the bottom end of the connecting block 29, and the rubber piston 23 is slidably connected in the plug tube 20, a positioning block 25 is welded and fixed to the side end surface of the support plate 19, a positioning groove 27 is provided at the bottom side end of the protective frame 26, the positioning block 25 is snap-connected in the positioning groove 27, a rubber plate 28 is fixedly connected to the top of the protective frame 26, four plug tubes 20 are provided, and the four plug tubes 20 are evenly distributed around the support plate 19, the top end surface of the plug tube 20 is flush with the top end surface of the filter plate 21, the plug tube 20 and the rubber piston 23 are both rectangular, and the bottom end of the rubber suction cup 24 The surface height is lower than the bottom end surface height of the support plate 19, the side end surface of the support plate 19 is in contact with the bottom side end surface of the protection frame 26, and the top end surface of the protection frame 26 is in contact with the bottom end surface of the mounting frame 1. Two rubber plates 28 are provided, and the two rubber plates 28 are symmetrically distributed on both sides of the top of the protection frame 26. The rubber plates 28 on both sides are in contact with each other. After the measurement work is completed, the stepping shift component 3 and the adjustment measurement component 5 can be covered with protection by the protection frame 26, and the protection frame 26 can be conveniently and stably engaged and fixed by moving the support plates 19 on both sides to the middle, combined with the positioning block 25 and the positioning groove 27, thereby ensuring the stability of the working state of the protection frame 26, conveniently realizing the protection work of the entire device, and ensuring the stability and safety of the subsequent carrying and transportation of the entire device.

[0030] It should be noted that the present invention is an inner hole thermal spray thickness measuring device. First, the staff can carry and transport the entire device by grasping the fixed handle 2 on the mounting frame 1. After moving to a suitable position, the staff can pull the second clamping rod 8 on the guide frame 6 upward until the second clamping rod 8 moves out of the second clamping groove 10 on the sliding plate 9. Then the staff can pull the sliding plate 9 to the side. At this time, under the movement of the sliding plate 9, the fixed block 12 at the bottom of the support rod 11 can drive the support plate 19 to move synchronously, and then the positioning block 25 can be driven to move out of the positioning groove 27 on the protective frame 26. At this time, the staff can remove the protective frame 26.

[0031] Then the staff can insert the two probes 518 into the inner holes on the workbench or the mold, and then the staff can rotate the second worm 503 on the second connecting frames 501 on both sides. During the rotation of the second worm 503, the reference rod 504 can be driven to move above the scale plate 502. By using the cooperation of the reference rod 504 and the scale plate 502, the rotation angle of the second worm 503 can be accurately adjusted to ensure that the rotation angles of the second worm 503 on the second connecting frames 501 on both sides are the same; under the rotation of the second worm 503 on one side, the second worm gears 505 meshingly connected on both sides can drive the corresponding second connecting shafts 506 to rotate at the same time, and then drive the adjusting rods 507 on both sides to rotate at the same time. By rotating sideways, under the rotation action of the adjusting rods 507 on both sides, the adjusting plate 508 on one side can be pushed to move in the direction away from the connecting plate 4. At this time, under the guiding action of the third telescopic sleeve rod 509, the stability of the movement state of the adjusting plate 508 can be ensured. Similarly, through the same operation, under the same rotation action of the second worm gear 503 on the other side, combined with the adjusting rod 507, the adjusting plate 508 on the other side can be driven to move in the direction away from the connecting plate 4. At this time, the adjusting plates 508 on both sides move to both sides, and the movement distance is the same, ensuring that the connecting plate 4 is in the middle part of the adjusting plates 508 on both sides. The movement of the adjusting plates 508 on both sides is utilized to ensure that the probes 518 on both sides are in close contact with the thermal spray coating of the inner hole.

[0032] At the same time, during the movement of the probe 518, when it comes into contact with the thermal spray coating of the inner hole, the adjustment plate 508 is driven. At this time, under the blocking effect of the inner wall of the inner hole, the probe 518 can be pushed to move in the direction of the connecting plate 4. Under the guiding effect of the guide rod 510 and the guide block 512, the probe 518 can push the guide block 512 to slide on the guide rod 510 through the connecting frame 513. Under the elastic effect of the connecting spring 511, the probe 518 can be pushed to come into contact with the thermal spray coating of the inner hole through the connecting frame 513 on the guide block 512. The purpose is to leave a certain margin to avoid the center point between the probes 518 on both sides and the center point of the inner hole being offset during the movement adjustment process of the probes 518 on both sides, resulting in the probes 518 on both sides being unable to come into contact with the thermal spray coating of the inner hole when rotating, thereby affecting the subsequent measurement work.

[0033] After the probes 518 on both sides have been adjusted to fit the inner wall coating of the inner hole, the staff can pull the second clamping rod 8 on the guide frame 6 upwards again until the second clamping rod 8 moves out of the second clamping groove 10 on the sliding plate 9, and then the staff can pull the sliding plate 9 to move sideways. At this time, under the movement of the sliding plate 9, the support plate 19 can be driven to move synchronously through the fixed block 12 at the bottom of the support rod 11. By adjusting the position of the support plate 19, it is ensured that the support plate 19 can be placed in a suitable position on the workbench or the mold. Then the staff can release the second clamping rod 8 on the guide frame 6. At this time, under the elastic action of the second reset spring 7, the second clamping rod 8 can be driven to automatically engage in the second clamping groove 10 here. Through the same operation, the work can be completed. The position of the sliding plates 9 on both sides is adjusted and fixed by clamping. At this time, the support plates 19 on both sides can drive the rubber suction cups 24 below to fit and contact with the end faces of the workbench or the mold. Then the staff can rotate the threaded rod 22 on the filter plate 21. At this time, under the action of the threaded rotation of the threaded rod 22, the rubber piston 23 can be driven to move upward by the rotating connecting block 29. At this time, under the action of the movement of the rubber piston 23, the air inside the rubber suction cup 24 can be sucked through the plug tube 20, and negative pressure is formed inside the rubber suction cup 24. Through the same operation, the internal negative pressure of each rubber suction cup 24 can be used to stably adsorb and fix the support plates 19 on both sides to the end faces of the workbench or the mold, thereby completing the adsorption and fixation of the entire device and ensuring the stability of subsequent measurement work.

[0034] After the overall positioning and fixing of the device, the staff can drive the servo motor 302 on the first connecting frame 301. Under the driving action of the servo motor 302, the turntable 303 can be driven to rotate stably through the output shaft, and the first fixed plate 304 on the turntable 303 can be used to drive the coils 306 on the first connecting shafts 305 on both sides to perform circular motion. At the same time, the turntable 303 can also drive the first telescopic sleeve rods 312 on both sides to perform synchronous circular motion, and can drive the second telescopic sleeve rod 314 to rotate. At this time, under the rotation of the first telescopic sleeve rods 312 on both sides and the rotation of the second telescopic sleeve rod 314 in the middle, the connecting plate 4 can be driven to rotate stably, and then the measuring heads 518 on the adjustment plates 508 on both sides can be driven to perform stable circular motion through the adjusting rod 507.

[0035] At the same time, during the rotation of the turntable 303, the first worm gears 308 on both sides can be driven to perform circular motion, and then the circular gear 309 on the top of the first worm gear 308 can be driven to move synchronously. At this time, under the circular motion of the circular gears 309 on both sides, they can intermittently mesh with the racks 310 on both sides. The intermittent meshing of the circular gears 309 and the racks 310 can drive the first worm gear 308 to rotate intermittently. By utilizing the intermittent rotation of the first worm gear 308, the first worm gear 307 engaged through the meshing connection can drive the first connecting shaft 305 to automatically rotate during the circular motion. Under the rotation of the first connecting shaft 305, the traction rope 311 can be intermittently unwound through the coil 306. Under the intermittent unwinding of the traction rope 311, the elasticity of the reinforcing spring 313 can be used to push the first telescopic sleeve rod 312 to extend intermittently during the circular motion. Under the intermittent extension of the first telescopic sleeve rod 312, the connecting plate 4 can be pushed to move downward intermittently during the rotation.

[0036] The circular gear 309 on the first worm gear 308 on both sides can be meshed with the rack 310 by rotating half a circle, that is to say, the turntable 303 can intermittently unwind the traction rope 311 by rotating half a circle, and the turntable 303 drives the connecting plate 4 to rotate half a circle through the first telescopic sleeve rod 312 and the second telescopic sleeve rod 314, so as to drive the connecting plate 4 to move downward intermittently, and the connecting plate 4 can drive the probes 518 on both sides to move downward intermittently by rotating half a circle, and the probes 518 on both sides can complete the thermal spray coating measurement work of one circle of the inner hole by rotating half a circle, and so on. Under the continuous rotation and intermittent downward movement of the probes 518 on both sides, When the probe 518 moves down to the bottom of the inner hole, combined with the connecting cable 519 and the coating thickness gauge 520, the thickness of the thermal spray coating of the inner hole can be automatically and stably measured comprehensively; and during the measurement process, the turntable 303 can drive the coating thickness gauge 520 to move synchronously through the mounting plate 521, and during the downward movement of the probe 518, the connecting cable 519 can be pulled. Under the pulling action of the connecting cable 519, the reel 524 on the third connecting shaft 523 can be driven to rotate automatically, thereby ensuring the stability of the unwinding work of the connecting cable 519, and then ensuring the stability of the measurement work.

[0037] After the measurement work is completed, the output shaft on the servo motor 302 can be driven to rotate in the opposite direction, thereby driving the turntable 303 to rotate in the opposite direction, so that the first worm 308 can be driven to rotate in the opposite direction through the circular gear 309 and the rack 310. Under the reverse rotation of the first worm 308, the first connecting shaft 305 on the first worm gear 307 can drive the coil 306 to automatically reel in the traction rope 311, thereby driving the first telescopic sleeve rod 312 to automatically retract, thereby driving the connecting plate 4 to move upward and reset. Similarly, by rotating the second worm 503 on the second connecting frame 501 in the opposite direction, the second worm gears 505 on both sides can be driven to rotate in the opposite direction, thereby driving the adjusting rods 507 on both sides to rotate and reset. Then the staff can pull the second clamping rod 8 on the guide frame 6 upward again until the second clamping rod 8 moves out of the second clamping slot 10 on the sliding plate 9, and then the staff can push the sliding plates 9 on both sides toward the center. Then, under the action of the movement of the sliding plate 9, at the same time, the staff can put the protective frame 26 from bottom to top on the adjusting and measuring component 5 and the stepping shift component 3, and combine the rubber plate 28 to provide safety protection for them. Subsequently, under the action of the movement of the sliding plates 9 on both sides, the positioning block 25 can be driven by the support plate 19 to move and engage with the positioning groove 27 on the protective frame 26 to complete the engagement and fixation of the protective frame 26, thereby ensuring the stability of the subsequent working state of the protective frame 26. Subsequently, the engagement of the second clamping rod 8 and the second clamping groove 10 is used to complete the engagement and fixation of the sliding plate 9, thereby completing the folding, storage and protection work of the entire device. In addition, during the contraction of the first telescopic sleeve rod 312, under the elastic action of the spiral spring 526 inside the limit frame 525, the reel 524 on the third connecting shaft 523 can be driven to automatically rotate in the opposite direction, and the connecting cable 519 can be automatically reeled up, thereby ensuring the stability and convenience of the connecting cable 519 in the repeated working state.

[0038] When it is necessary to measure the thermal spraying thickness of the inner hole of the shaft part or the pipeline, the staff can disassemble the protective frame 26, and then pull the third clamping rod 18 on the second fixed plate 16 outward. Under the movement of the third clamping rod 18, it can move out of the third clamping groove 13 on the fixed block 12. Then, under the action of the rotating shaft 15, the staff can rotate the support plate 19 on the second fixed plate 16 by 90°. At this time, under the rotation of the second fixed plate 16, the third clamping rod 18 can be driven to move to the fourth clamping groove 14. Then the staff can loosen the third clamping rod 18 on the second fixed plate 16. At this time, under the elastic action of the third reset spring 17, it can drive The third clamping rod 18 is automatically engaged in the fourth clamping slot 14, and the same operation is performed to rotate the other side support plate 19 by 90°. By rotating the support plates 19 on both sides 90° to the middle, the staff can adjust the extension distance of the sliding plates 9 on both sides through the same operation mentioned above, so that the rubber suction cups 24 at the support plates 19 on both sides can be brought into contact with the outer wall of the shaft parts or pipes, and the measuring device as a whole can be conveniently and stably adsorbed and fixed on the outer wall of the shaft parts or pipes. Then, through the same operation mentioned above, by driving the stepping shift component 3 and adjusting the measuring component 5, the thickness of the inner hole thermal spray coating of the shaft parts or pipes can be automatically and stably measured comprehensively.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An inner hole thermal spraying thickness measuring device, characterized in that: The invention comprises a mounting frame (1), a connecting plate (4) and a protective frame (26), wherein a fixed handle (2) is welded and fixed on the top surface of the mounting frame (1), a stepping shift assembly (3) is installed on the bottom of the mounting frame (1), an adjusting and measuring assembly (5) is installed on the connecting plate (4), a guide frame (6) is welded and fixed on the bottom of the mounting frame (1), a second return spring (7) is welded and fixed on the top surface of the guide frame (6), a second clamping rod (8) is welded and fixed on the top of the second return spring (7), the second clamping rod (8) is slidably connected in the guide frame (6), a sliding plate (9) is slidably connected in the guide frame (6), a second clamping groove (10) is provided on the top of the sliding plate (9), and the second clamping rod (8) is slidably connected in the guide frame (6). The end of the second clamping rod (8) is engaged and connected in the second clamping groove (10); a support rod (11) is welded and fixed on the bottom end surface of the sliding plate (9); a fixed block (12) is welded and fixed on the bottom end of the support rod (11); a third clamping groove (13) and a fourth clamping groove (14) are provided on the fixed block (12); a rotating shaft (15) is welded and fixed on the fixed block (12); a second fixed plate (16) is rotatably connected to the rotating shaft (15); a third return spring (17) is welded and fixed on the second fixed plate (16); a third clamping rod (18) is welded and fixed on the other end of the third return spring (17); the third clamping rod (18) penetrates and is slidably connected to the second fixed plate (16); the third A support plate (19) is welded and fixed to the bottom end surface of the second fixed plate (16), a plug tube (20) is welded and fixed to the support plate (19), and a rubber suction cup (24) is connected to the bottom of the plug tube (20). The stepping displacement assembly (3) comprises a first connecting frame (301), the first connecting frame (301) is welded and fixed to the bottom end surface of the mounting frame (1), a servo motor (302) is welded and fixed to the top end surface of the first connecting frame (301), an output shaft of the servo motor (302) is rotatably connected to the first connecting frame (301), a rotating disk (303) is welded and fixed to the output shaft of the servo motor (302), and the rotating disk (303) is rotatably connected to the bottom of the first connecting frame (301) via a bearing. A first fixing plate (304) is welded and fixed on the top surface of the first connecting frame (301), a first connecting shaft (305) is rotatably connected to the first fixing plate (304), a coil (306) and a first worm wheel (307) are welded and fixed to the first connecting shaft (305), a first worm (308) is meshingly connected to the first worm wheel (307), the bottom end of the first worm (308) is rotatably connected to the top surface of the rotating disk (303), the output shaft of the servo motor (302) is connected to the center of the rotating disk (303), the first worm (308) is symmetrically distributed on both sides of the rotating disk (303), and the first worm (308) corresponds to the first worm wheel (307) one by one.The first worm gear (307) corresponds to the coil (306) one by one via the first connecting shaft (305); a circular gear (309) is welded and fixed to the top end of the first worm gear (308); a rack (310) is meshingly connected to the circular gear (309); the rack (310) is welded and fixed to the inner side end surface of the first connecting frame (301); a first telescopic sleeve rod (312) and a second telescopic sleeve rod (314) are welded and fixed to the bottom end surface of the rotating disk (303); the bottom ends of the first telescopic sleeve rod (312) and the second telescopic sleeve rod (314) are both welded and fixed to the top end surface of the connecting plate (4); the first telescopic sleeve rod (312) and the second telescopic sleeve rod (314) are welded and fixed to the top end surface of the connecting plate (4); The cross-section of the first telescopic sleeve (312) and the cross-section of the second telescopic sleeve (314) are both rectangular. A reinforcing spring (313) is welded and fixed inside the first telescopic sleeve (312). A traction rope (311) is wound around the coil (306). The traction rope (311) passes through and is slidably connected to the turntable (303) and the first telescopic sleeve (312). The bottom end of the traction rope (311) is fixedly connected to the inner bottom end surface of the first telescopic sleeve (312). The adjustment and measurement assembly (5) comprises a second connection frame (501), a third telescopic sleeve (509), a mounting block (516) and a storage frame (522). The second connection frame (501) A scale plate (502) is welded and fixed on the top surface of the second connecting frame (501); a second worm (503) is rotatably connected to the second connecting frame (501); a reference rod (504) is welded and fixed to the second worm (503); a second worm wheel (505) is meshingly connected to the second worm (503); a second connecting shaft (506) is welded and fixed to the second worm wheel (505); the second connecting shaft (506) is rotatably connected to the inside of the second connecting frame (501); an adjusting rod (507) is welded and fixed to the second connecting shaft (506); two second connecting frames (501) are provided, and the two second connecting frames (501) are symmetrically distributed on the second extension. On both sides of the retracting rod (314), the scale plate (502) is in a circular ring shape, the scale plate (502) is fixed at the top center of the second connecting frame (501), the second worm (503) is connected to the top center of the second connecting frame (501), the second worm gear (505) is symmetrically distributed on both sides of the second worm (503), the second worm gear (505) corresponds to the second connecting shaft (506) one by one, the bottom of the adjusting rod (507) on one side of the second connecting shaft (506) is hinged to the side end surface of the connecting plate (4), and the bottom of the adjusting rod (507) on the other side of the second connecting shaft (506) is hinged to the adjusting plate (508).

2. The inner hole thermal spraying thickness measuring device according to claim 1, characterized in that: The first worm gear (308) corresponds one-to-one with the rack (310) via a circular gear (309); the two racks (310) are centrally symmetrically distributed on both sides of the first connection frame (301); the racks (310) are arc-shaped; the second telescopic sleeve rod (314) is fixed to the bottom center of the rotating disk (303); the first telescopic sleeve rod (312) is symmetrically distributed on both sides of the bottom of the rotating disk (303); the first telescopic sleeve rod (312) corresponds one-to-one with the coil (306) via a traction rope (311).

3. The inner hole thermal spraying thickness measuring device according to claim 1, characterized in that: One end of the third telescopic sleeve rod (509) is welded and fixed to the top end surface of the adjustment plate (508), and the other end of the third telescopic sleeve rod (509) is welded and fixed to the top end surface of the connection plate (4). A guide rod (510) and a connecting spring (511) are welded and fixed inside the adjustment plate (508), and the connecting spring (511) is sleeved on the guide rod (510). The guide rod (510) is slidably connected to the upper limit position with a guide block (512), and the other end of the connecting spring (511) is welded and fixed to the side end surface of the guide block (512). A connecting frame (513) is welded and fixed to the bottom end surface of the guide block (512), and a connecting frame (513) is welded and fixed to the side end surface of the connecting frame (513). A first return spring (514) is fixed, and a first clamping rod (515) is welded and fixed to the other end of the first return spring (514), and the first clamping rod (515) penetrates and is slidably connected to the side end of the connecting frame (513), and a first clamping groove (517) is opened at the side end of the mounting block (516), and the end of the first clamping rod (515) is clamped and connected in the first clamping groove (517), and a probe (518) is installed on the mounting block (516), and the guide block (512) is fixed to the middle part of the top end of the connecting frame (513), and the first clamping rod (515) is symmetrically distributed on both sides of the connecting frame (513), and the first clamping rod (515) corresponds to the first clamping groove (517) one by one.

4. The inner hole thermal spraying thickness measuring device according to claim 3 is characterized in that: The probe (518) is connected to a connecting cable (519), the other end of the connecting cable (519) is connected to a coating thickness gauge (520), the coating thickness gauge (520) is bolted to a mounting plate (521), the mounting plate (521) is welded and fixed to the bottom surface of the turntable (303), the connecting cable (519) and the storage frame (522) are connected in a through-sliding manner, and the storage frame (522) is rotatably connected to a third connecting shaft (520). 23), a reel (524) is welded and fixed on the third connecting shaft (523), the connecting cable (519) passes through and is fixed in the middle of the reel (524), the connecting cable (519) is wound around the reel (524), a limiting frame (525) is welded and fixed in the storage frame (522), a spiral spring (526) is welded and fixed in the limiting frame (525), and the inner end of the spiral spring (526) is welded and fixed on the third connecting shaft (523).

5. The inner hole thermal spraying thickness measuring device according to claim 1, characterized in that: The guide frames (6) are symmetrically distributed on both sides of the mounting frame (1); the guide frames (6) correspond one-to-one with the second clamping rod (8) and the sliding plate (9), respectively; the second clamping grooves (10) are equidistantly distributed on the sliding plate (9); the sliding plate (9) corresponds one-to-one with the fixed block (12) through the support rod (11); the third clamping groove (13) and the fourth clamping groove (14) are symmetrically distributed on the front and rear sides of the fixed block (12); the second fixed plate (16) is symmetrically distributed on the front and rear sides of the fixed block (12); and the second fixed plate (16) corresponds one-to-one with the third clamping rod (18).

6. The inner hole thermal spraying thickness measuring device according to claim 1, characterized in that: A filter plate (21) is welded and fixed to the top of the plug tube (20), a threaded rod (22) is threadedly connected to the filter plate (21), a connecting block (29) is rotatably connected to the bottom end of the threaded rod (22), a rubber piston (23) is fixedly connected to the bottom end of the connecting block (29), and the rubber piston (23) is slidably connected in the plug tube (20), a positioning block (25) is welded and fixed to the side end surface of the support plate (19), a positioning groove (27) is provided at the bottom side end of the protective frame (26), the positioning block (25) is snap-fitted into the positioning groove (27), and a rubber plate (28) is fixedly connected to the top of the protective frame (26).

7. The inner hole thermal spraying thickness measuring device according to claim 6, characterized in that: Four plug tubes (20) are provided, and the four plug tubes (20) are evenly distributed around the support plate (19). The top end surface of the plug tube (20) is flush with the top end surface of the filter plate (21). The plug tube (20) and the rubber piston (23) are both rectangular. The bottom end surface of the rubber suction cup (24) is lower than the bottom end surface of the support plate (19). The side end surface of the support plate (19) is in contact with the bottom side end surface of the protection frame (26). The top end surface of the protection frame (26) is in contact with the bottom end surface of the mounting frame (1). Two rubber plates (28) are provided, and the two rubber plates (28) are symmetrically distributed on both sides of the top of the protection frame (26). The rubber plates (28) on both sides are in contact with each other.

Images