A cast surface post-treatment and on-line detection device

Abstract

The application relates to the technical field of casting detection, and discloses a casting surface post-treatment and online detection device, which comprises a workbench, a gap driving device, a surface treatment device, a coupling agent device and an embedded detection device. The post-burr removal treatment and detection functions are integrated in the same station, the auxiliary time such as workpiece carrying and positioning is reduced, the production rhythm and the automation degree are greatly improved, the production efficiency is accelerated, the embedded detection device is arranged on the machining table, online detection is realized, the pulse / echo signal is transmitted into the ultrasonic probe, the signal is amplified by a preamplifier, analog-digital conversion is carried out through a data acquisition card, the digital ultrasonic data stream is sent into a wireless transmission module, the data is coupled through electromagnetic induction, is captured in real time by a receiving module of a control unit, the received data is transmitted to an upper computer in a wired mode for real-time analysis and data storage, defective products are timely removed, and the qualified rate of products is improved.

Description

Technical Field

[0001] This invention belongs to the field of casting inspection, specifically relating to a casting surface post-treatment and online inspection device. Background Technology

[0002] After demolding, castings usually have surface defects such as flash and burrs, and may also have internal defects such as porosity and shrinkage. Therefore, post-processing and quality inspection are indispensable key links in casting production.

[0003] Currently, traditional processing methods have obvious shortcomings: the deburring process mostly uses manual grinding, which is inefficient and labor-intensive. In the process of quality inspection of castings, offline sampling inspection is usually carried out, which requires the castings to be removed from the production line and transported to a special inspection station for inspection. This method is inefficient, has the risk of missed inspections, and cannot provide real-time feedback on production quality.

[0004] This application proposes a surface post-treatment and online inspection device for castings to improve the aforementioned defects. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a casting surface post-processing and online inspection device that can automatically complete the deburring process of castings and immediately perform online detection of internal defects at the same station.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0007] A casting surface post-treatment and online inspection device includes a body, a control group, a worktable, a gap drive device, a surface treatment device, a coupling agent device, and an embedded inspection device. The worktable, capable of performing post-treatment and inspection of castings, is mounted on the body. The bottom of the worktable is connected to the control group, which is mounted on the body. A gap drive device, connected to the body, is located on the outer side of the worktable. The surface treatment device is mounted on the gap drive device. A coupling agent device is located on the other side of the worktable. An embedded inspection device is mounted on the top of the body.

[0008] In one specific implementation, the gap driving device consists of a driving component and an outer ring. The driving component is mounted on the machine body, and the outer ring is rotatably fitted on one side of the driving component. The outer ring is rotatably fitted on the machine body and has a gap fit with the worktable. The surface treatment device is mounted on the outer ring.

[0009] In one specific implementation, the surface treatment device comprises a driving base, a first rotating rod, a second rotating rod and a polishing head, the top of the driving base is connected with the first rotating rod, the other end of the first rotating rod is connected with the second rotating rod, the second rotating rod is installed with the polishing head, and the driving base, the first rotating rod and the second rotating rod are all installed with driving motors capable of driving them to rotate.

[0010] In one specific implementation, the polishing head is installed with a torque sensor, the torque sensor can detect the contact force along the three-dimensional polishing path and the torque around the three axes, and amplify, filter and analog-digital convert the weak analog signal output by the force sensor through an internal signal conditioner, and then high-speed transmit to the controller of the surface treatment device.

[0011] In one specific implementation, the driving member comprises a connecting frame, a motor, a main shaft, a roller and a driving groove, the connecting frame is fixed on the machine body, the connecting frame is installed with the motor on one side, the output end of the motor is connected with the main shaft, the main shaft is installed with the roller, and the roller is provided with the driving groove.

[0012] In one specific implementation, the outer ring comprises clamping columns, scrapers, leakage grooves, a plugging ring and drainage grooves, the outer side of the outer ring is annularly arranged with clamping columns, the clamping columns can be movably clamped with the driving grooves on the driving member, the inner wall of the outer ring is annularly arranged with scrapers, the bottom of the outer ring is provided with leakage grooves, the outer wall of the outer ring is provided with the plugging ring, the plugging ring is fixedly installed on the machine body, the plugging ring is annularly provided with drainage grooves, the number of the drainage grooves is same as that of the leakage grooves, and the distance between every two adjacent clamping columns is equal to the circumference of the driving groove on the roller after one rotation.

[0013] In one specific implementation, the embedded detection device comprises a pneumatic cylinder, an ultrasonic detection member, a servo motor, a ball screw, a moving seat, a side plate, a liquid storage tank and a multi-dimensional nozzle, the pneumatic cylinder is installed on the top of the machine body, the piston end of the pneumatic cylinder penetrates through the machine body and is connected with the ultrasonic detection member, the servo motor is installed on the machine body, the output end of the servo motor is connected with the ball screw, the ball screw is slidably connected with the moving seat, the moving seat is fixed with the side plate on one side, the side plate is installed with the liquid storage tank on one side, the side plate is installed with the multi-dimensional nozzle on the other side, and the multi-dimensional nozzle is connected with the liquid storage tank.

[0014] In one specific implementation, the multi-dimensional nozzle comprises a connecting pipe, a first rotating pipe, a first gear ring, a second rotating pipe, a second gear ring, a motor base and a gear, the connecting pipe is communicated with a liquid storage tank, the other end of the connecting pipe is rotatably connected with the first rotating pipe through a bearing, the outer side of the first rotating pipe is provided with the first gear ring, the other end of the first rotating pipe is rotatably connected with the second rotating pipe through a bearing, the outer side of the end of the second rotating pipe close to the first rotating pipe is provided with the second gear ring, the outer wall of the connecting pipe and the first rotating pipe is fixed with the motor base, the output end of the micro motor in the motor base is connected with the gear, and the two gears are respectively engaged with the first gear ring and the second gear ring.

[0015] In one specific implementation, the ultrasonic detection device comprises a mounting plate, a control unit, an outer cylinder, a transmission module, a floating joint and an ultrasonic probe, the mounting plate is connected with a cylinder, the bottom of the mounting plate is fixed with the control unit, the bottom of the control unit is provided with the outer cylinder, the inner side of the outer cylinder is slidably connected with the transmission module, the transmission module is rotatably connected with the floating joint, and the top end of the floating joint is provided with the ultrasonic probe.

[0016] In one specific implementation, the transmission module is internally provided with a preamplifier and a wireless transmission module, so that the collected weak echo signal can be preliminarily amplified, the signal-to-noise ratio is improved, and the signal attenuation and interference in subsequent transmission are reduced.

[0017] In one specific implementation, the control unit is internally provided with a wireless receiving module, energy and data transmission are carried out through electromagnetic coupling, and the data are uploaded to an upper computer signal processing and imaging system through wired mode such as Ethernet.

[0018] In one specific implementation, the bottom of the transmission module is connected with the bottom of the outer cylinder through a spring, and the spring can reset the transmission module.

[0019] According to the above technical scheme, the casting surface post-treatment and online detection device has the following advantages:

[0020] (1) The deburring post-treatment and detection functions are integrated in the same station, so that the auxiliary time such as workpiece carrying and positioning is reduced, the production rhythm and automation degree are greatly improved, and the production efficiency is accelerated.

[0021] (2) The present application can detect the contact force along the three-dimensional path polishing through the torque sensor in the polishing head based on force feedback control, and the weak analog signal output by the force sensor is amplified, filtered and analog-digital converted by the internal signal conditioner, and then is transmitted at high speed to the controller of the surface treatment device, the force control algorithm running in the controller calculates according to the real-time force error, which avoids over-polishing and under-polishing in the traditional way, and improves the processing consistency.

[0022] (3) The present application realizes online detection by providing an embedded detection device on the machining table, the pulse / echo signal is transmitted into the signal by the ultrasonic probe, the signal is amplified by the preamplifier, and the digitized ultrasonic data stream is sent to the wireless transmission module, the data is coupled by electromagnetic induction, crosses the physical rotation gap, and is captured in real time and losslessly by the receiving module of the control unit, the received data is transmitted to the upper computer in a wired manner for real-time analysis, defect judgment and data storage, and the defective products are timely removed or the process parameters are adjusted to improve the qualified rate of products.

[0023] (4) The present application sprays the coupling agent uniformly to the contact area of the probe and the casting through the multi-dimensional nozzle, fills the micro concave-convex uneven place between the probe surface and the casting bottom surface, excludes air, forms a continuous acoustic wave transmission path, so that in the high-speed rotating centrifugal environment, the stable coupling liquid film is the premise to ensure the continuous and stable transmission of the signal, avoids the fluctuating detection signal caused by the coupling state being good or bad due to rotation vibration, and the coupling agent liquid film can play a slight lubricating and buffering role, reduces the direct friction between the probe and the casting surface, especially in the high-speed rotating relative motion, which helps to prolong the service life of the probe.

[0024] (5) The present application can scrape and concentrate the sprayed coupling agent when the outer ring rotates, and discharge it through the drainage groove, thereby improving the collection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:

[0026] Figure 1 FIG. 1 is a structural schematic diagram of a casting surface post-treatment and online detection device according to an embodiment of the present application;

[0027] Figure 2 FIG. 3 is a structural schematic diagram of a gap driving device according to an embodiment of the present application;

[0028] Figure 3 FIG. 5 is a structural schematic diagram of a surface treatment device according to an embodiment of the present application;

[0029] Figure 4 It is a structural schematic diagram of the driving member in the embodiment of the application.

[0030] Figure 5 It is a structural schematic diagram of the outer ring in the embodiment of the application.

[0031] Figure 6 It is a mounting schematic diagram of the coupling agent device in the embodiment of the application.

[0032] Figure 7 It is a structural schematic diagram of the multi-dimensional nozzle in the embodiment of the application.

[0033] Figure 8 It is a dynamic schematic diagram of the multi-dimensional nozzle in the embodiment of the application.

[0034] Figure 9 It is a structural schematic diagram of the embedded detection device in the embodiment of the application.

[0035] Figure 10 It is a dynamic schematic diagram of the ultrasonic detection member in the embodiment of the application.

[0036] In the figure: body-1, control group-2, workbench-3, gap driving device-4, surface treatment device-5, coupling agent device-6, embedded detection device-7, driving member-41, outer ring-42, driving base-51, first rotating rod-52, second rotating rod-53, polishing head-54, connecting frame-411, motor-412, main shaft-413, roller-414, driving groove-415, clamping column-421, scraper-422, leakage groove-423, plugging ring-424, drainage groove-425, air cylinder-71, ultrasonic detection member-72, servo motor-73, ball screw-74, moving seat-75, side plate-76, liquid storage tank-77, multi-dimensional nozzle-78, connecting pipe-91, first rotating pipe-92, first tooth ring-93, second rotating pipe-94, second tooth ring-95, motor base-96, gear-97, mounting plate-721, control unit-722, outer cylinder-723, transmission module-724, floating joint-725, ultrasonic probe-726. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, purposes and effects realized by the application easy to understand, the application is further described below in combination with specific embodiments.

[0038] Embodiment one: please refer to Figures 1-5 The specific embodiments of the application are as follows:

[0039] The utility model provides a castings surface postprocessing and on-line detection device, its structure includes body 1, control group 2, workstation 3, gap drive arrangement 4, surface treatment device 5, coupling agent device 6 and embedded detection device 7, can be installed on the body 1 with the workstation 3 of castings postprocessing and detection, the bottom of workstation 3 is connected with control group 2, can drive workstation 3 to operate through control group 2, control group 2 is installed on the body 1, the outside of workstation 3 is equipped with the gap drive arrangement 4 connected with the body 1, is installed with the surface treatment device 5 that can be processed to castings surface on the gap drive arrangement 4, the other side of workstation 3 is equipped with coupling agent device 6, the top of body 1 is equipped with embedded detection device 7.

[0040] Please refer to Figure 2 The gap drive arrangement 4 is composed of a driving member 41 and an outer ring 42, the driving member 41 is installed on the body 1, one side of the driving member 41 is rotatably connected with the outer ring 42, the outer ring 42 is rotatably connected with the body 1 and is in gap connection with the workstation 3, and the surface treatment device 5 is installed on the outer ring 42.

[0041] Please refer to Figure 3 The surface treatment device 5 comprises a driving base 51, a first rotating rod 52, a second rotating rod 53 and a polishing head 54, the top of the driving base 51 is connected with the first rotating rod 52, the other end of the first rotating rod 52 is connected with the second rotating rod 53, and the polishing head 54 is installed on the second rotating rod 53, the burrs on the surface of the castings can be polished by the polishing head 54, driving motors are installed on the driving base 51, the first rotating rod 52 and the second rotating rod 53 to drive the rotation thereof, the multi-dimensional rotation of the surface treatment device 5 can be realized by the motor driving cooperation of the driving base 51, the first rotating rod 52 and the second rotating rod 53, so that the three-dimensional path polishing of the surface of the castings can be realized.

[0042] Please refer to Figure 3 A torque sensor is installed in the polishing head 54, the torque sensor can detect the contact force along the three-dimensional path polishing, can also detect the torque around the three axes, and can amplify, filter and analog-digital convert the weak analog signal output by the force sensor through the internal signal conditioner, and then high-speed transmission is given to the controller of the surface treatment device 5, the force control algorithm running in the controller calculates according to the real-time force error (ΔF = F_actual - F_desired);

[0043] When the polishing head 54 contacts the castings, the contact force increases, if the protruding burrs are encountered, the actual force F_actual will be greater than F_desired (ΔF is positive) at once, the algorithm will immediately calculate a compensation amount of backward retreat, so that the polishing force of the surface treatment device 5 retreats, and over-polishing is avoided;

[0044] When polishing a complex curved surface, even if there is no burr, the normal direction of the curved surface itself is constantly changing, and the force feedback control can always ensure that the polishing force is perpendicular to the curved surface, and when a depression or hole is encountered (the force suddenly decreases, and Delta F is negative), the algorithm will control the robot to compensate forward to prevent the grinding head from "hanging" and causing under-grinding.

[0045] Please refer to Figure 4 The driving member 41 comprises a connecting frame 411, a motor 412, a main shaft 413, a roller 414 and a driving groove 415. The connecting frame 411 is fixed on the machine body 1. The motor 412 is mounted on one side of the connecting frame 411. The output end of the motor 412 is connected with the main shaft 413. The roller 414 is mounted on the main shaft 413. The driving groove 415 is formed in the roller 414. The roller 414 on the main shaft 413 is driven to rotate synchronously by the motor 412.

[0046] Please refer to Figure 5 The outer ring 42 comprises a clamping column 421, a scraper 422, a leakage groove 423, a plugging ring 424 and a drainage groove 425. A plurality of clamping columns 421 are arranged in an annular array on the outer side of the outer ring 42. The clamping columns 421 are movably clamped with the driving grooves 415 on the driving member 41. A plurality of scrapers 422 are arranged in an array on the inner wall of the outer ring 42. A plurality of leakage grooves 423 are formed in the bottom of the outer ring 42. The outer wall of the outer ring 42 is provided with the plugging ring 424. The plugging ring 424 is fixedly installed on the machine body 1. A plurality of drainage grooves 425 are annularly formed in the plugging ring 424. The number of the drainage grooves 425 is the same as that of the leakage grooves 423. The distance between every adjacent two clamping columns 421 is equal to the circumference of the driving groove 415 on the roller 414 after one rotation.

[0047] Please refer to Figures 4-5 The roller 414 on the main shaft 413 is driven to rotate by the motor 412. The clamping columns 421 are movably clamped with the driving grooves 415 on the roller 414. When the roller 414 rotates, the clamping columns 421 move in the driving grooves 415. The outer ring 42 is driven to rotate by the clamping columns 421. When a group of clamping columns 421 rotates on the driving grooves 415 for one revolution, the next group of clamping columns 421 enters the driving grooves 415 of the roller 414.

[0048] Example two: please refer to Figures 6-10 The specific embodiments of the present application are as follows:

[0049] Please refer to Figure 6, embedded detection device 7 includes cylinder 71, ultrasonic detection piece 72, servo motor 73, ball screw 74, moving seat 75, side plate 76, liquid storage tank 77 and multi-dimensional nozzle 78, cylinder 71 is installed on the top of the body 1, the piston end of the cylinder 71 penetrates the body 1 and is connected with the ultrasonic detection piece 72, which can drive it to rise and fall, the servo motor 73 is installed on the body 1, the output end of the servo motor 73 is connected with the ball screw 74, the ball screw 74 is slidably connected with the moving seat 75, one side of the moving seat 75 is fixed with the side plate 76, one side of the side plate 76 is installed with the liquid storage tank 77, the other side of the side plate 76 is installed with the multi-dimensional nozzle 78, the multi-dimensional nozzle 78 is communicated with the liquid storage tank 77, and the coupling agent in the liquid storage tank 77 can be sprayed onto the casting through the water pump drive.

[0050] Please refer to Figures 7-8 , multi-dimensional nozzle 78 includes connecting pipe 91, first rotating pipe 92, first gear ring 93, second rotating pipe 94, second gear ring 95, motor base 96 and gear 97, connecting pipe 91 is communicated with liquid storage tank 77, the other end of connecting pipe 91 is rotatably connected with first rotating pipe 92 through bearing, the outer side of first rotating pipe 92 is installed with first gear ring 93, the other end of first rotating pipe 92 is rotatably connected with second rotating pipe 94 through bearing, the outer side of one end of second rotating pipe 94 close to first rotating pipe 92 is installed with second gear ring 95, motor base 96 is fixed on the outer wall of connecting pipe 91 and first rotating pipe 92, micro motor output end in motor base 96 is connected with gear 97, two gears 97 are respectively engaged with first gear ring 93 and second gear ring 95, which can drive first gear ring 93 and second gear ring 95 to rotate when rotating, so as to synchronously drive first rotating pipe 92 and second rotating pipe 94 to rotate.

[0051] Please refer to Figures 7-8 , the coupling agent in the liquid storage tank 77 is sprayed and evenly sprayed to the contact area of the probe and the casting through the multi-dimensional nozzle 78, fills the micro concave-convex uneven place between the probe surface and the casting bottom surface, excludes air, forms a continuous acoustic wave transmission path, so that in the high-speed rotating centrifugal environment, the stable coupling liquid film is the premise of ensuring the continuous and stable transmission of the signal, avoids the fluctuation of the detection signal caused by the coupling state from good to bad due to the rotation vibration, and the coupling agent liquid film can play a slight lubricating and buffering effect, reduces the direct friction between the probe and the surface of the casting, especially in the high-speed rotating relative motion, which is helpful to prolong the service life of the probe.

[0052] Please refer to Figure 9The ultrasonic detection piece 72 comprises a mounting plate 721, a control unit 722, an outer cylinder 723, a transmission module 724, a floating joint 725 and an ultrasonic probe 726. The mounting plate 721 is connected with the cylinder 71. The bottom of the mounting plate 721 is fixed with the control unit 722. The bottom of the control unit 722 is mounted with the outer cylinder 723. The inner part of the outer cylinder 723 is slidingly fitted with the transmission module 724. The transmission module 724 is rotationally fitted with the floating joint 725. The top end of the floating joint 725 is mounted with the ultrasonic probe 726.

[0053] Please refer to Figure 9 The transmission module 724 is internally provided with a preamplifier and a wireless transmission module. The transmission module 724 can preliminarily amplify the collected weak echo signals, improve the signal-to-noise ratio, and reduce signal attenuation and interference in subsequent transmission.

[0054] Please refer to Figure 9 The control unit 722 is internally provided with a wireless receiving module. The control unit 722 performs energy and data transmission through electromagnetic coupling, and uploads the data to an upper computer signal processing and imaging system through wired ways such as Ethernet.

[0055] Please refer to Figures 9-10 The bottom of the transmission module 724 is connected with the bottom of the outer cylinder 723 through a spring. The spring can reset the transmission module 724. When the ultrasonic probe 726 contacts the casting, the transmission module 724 can automatically adjust the contact angle of the probe and the casting through the cooperation between the floating joint 725 and the spring. When the surface of the casting is uneven, the ultrasonic probe 726 can keep real-time contact with the casting.

[0056] Please refer to Figures 9-10 The ultrasonic probe 726 is triggered to start working by the upper computer in the control unit 722. The pulse / echo signal is transmitted into the probe. The signal is amplified by the preamplifier in the transmission module 724, and is converted into digital signals by the data acquisition card. The digital ultrasonic data stream is sent to the wireless transmission module. The data is coupled by electromagnetic induction, crosses the physical rotation gap, and is captured by the receiving module of the control unit 722 in real time and without loss. The received data is transmitted to the upper computer through wired ways for real-time analysis, defect judgment (such as porosity calculation) and data storage.

[0057] Based on the above embodiment, the specific working principle is as follows:

[0058] The finished casting is clamped and fixed by the workbench 3, then the surface treatment device 5 is driven to operate, and the burrs existing on the surface of the casting are polished by the polishing head 54 on the surface treatment device 5, and in the process of polishing, the motor 412 drives the roller 414 on the main shaft 413 to rotate, the driving groove 415 is opened on the roller 414 and the clamping column 421 on the outer ring 42 is movably clamped, the clamping column 421 can be moved in the driving groove 415 when rotating, the outer ring 42 is driven to rotate by the clamping column 421, so that the surface treatment device 5 can rotate around the casting, and the casting can be polished in all directions, and the contact force is monitored in real time by the torque sensor, and the data is fed back to the controller, and the motion track and posture of the surface treatment device 5 are dynamically adjusted;

[0059] After the deburring is completed, the workbench 3 is driven to rotate, and the ultrasonic detection piece 72 is driven to descend by the cylinder 71 until the ultrasonic probe 726 is in contact with the surface of the casting, and at the same time, the coupling agent in the liquid storage tank 77 is sprayed and uniformly sprayed to the contact area of the probe and the casting by the multi-dimensional nozzle 78, so as to fill the micro concave-convex part between the surface of the probe and the bottom surface of the casting, exclude air, form a continuous sound wave conduction path, and the casting in rotation is scanned in all directions by the ultrasonic probe 726, and the detection data is sent to the upper computer in real time by the transmission module 724 for analysis, and the porosity and other indexes are calculated.

[0060] The sprayed coupling agent flows to the machine body 1, and is discharged and collected for recycling through the leakage groove 423 and the drainage groove 425 on the outer ring 42.

[0061] In the description of the present application, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0062] The control mode of the present application is controlled by the controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art, and the power supply also belongs to the common knowledge in the art, so the control mode and circuit connection of the present application will not be explained in detail.

[0063] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered within the protection scope of the present application.

Claims

1. A casting surface post-treatment and online inspection device, comprising a body (1), a worktable (3) located on the body (1), a control group (2) installed at the bottom of the worktable (3), a gap drive device (4) located on the outside of the worktable (3) and connected to the body (1), a surface treatment device (5) located on the gap drive device (4) capable of performing surface treatment on the casting, a coupling agent device (6) provided on the other side of the worktable (3), and an embedded inspection device (7) installed on the top of the body (1); characterized in that: The gap drive device (4) consists of a drive component (41) and an outer ring (42). The drive component (41) is mounted on the machine body (1). The outer ring (42) is rotatably fitted on one side of the drive component (41). The outer ring (42) is rotatably fitted on the machine body (1) and has a gap fit with the worktable (3). The embedded detection device (7) includes a cylinder (71), an ultrasonic detection element (72) located on the piston end of the cylinder (71), a servo motor (73) mounted on the body (1), a ball screw (74) located on the output end of the servo motor (73), a movable seat (75) for sliding cooperation with the ball screw (74), a side plate (76) fixed on one side of the movable seat (75), and a liquid storage tank (77) mounted on one side of the side plate (76). A multi-dimensional nozzle (78) is installed on the other side of the side plate (76), and the multi-dimensional nozzle (78) is connected to the liquid storage tank (77). The multidimensional nozzle (78) includes a connecting pipe (91), a first rotating pipe (92) rotatably fitted with a bearing at the other end of the connecting pipe (91), a first toothed ring (93) mounted on the outside of the first rotating pipe (92), a second rotating pipe (94) rotatably fitted with a bearing at the other end of the first rotating pipe (92), a second toothed ring (95) located on the outside of one end of the second rotating pipe (94), a motor base (96) mounted on the outer wall of the connecting pipe (91) and the first rotating pipe (92), and a gear (97) located on the output end of a micro motor inside the motor base (96). The ultrasonic testing component (72) includes a mounting plate (721), a control unit (722) fixed at the bottom of the mounting plate (721), an outer cylinder (723) located at the bottom of the control unit (722), and a transmission module (724) for sliding cooperation with the inside of the outer cylinder (723). A floating joint (725) is rotatably fitted on the transmission module (724), and an ultrasonic probe (726) is installed at the top of the floating joint (725).

2. The casting surface post-treatment and online inspection device according to claim 1, characterized in that: The surface treatment device (5) includes a drive base (51), a first rotating rod (52) connected to the top of the drive base (51), and a second rotating rod (53) connected to the other end of the first rotating rod (52). A grinding head (54) is installed on the second rotating rod (53).

3. The casting surface post-treatment and online inspection device according to claim 2, characterized in that: A torque sensor is installed inside the grinding head (54). The torque sensor can detect the contact force of grinding along the three-dimensional path and the torque around the three axes. The weak analog signal output by the force sensor is amplified, filtered and converted from analog to digital by the internal signal conditioner and then transmitted at high speed to the controller of the surface treatment device (5).

4. The casting surface post-treatment and online inspection device according to claim 1, characterized in that: The drive unit (41) includes a connecting frame (411), a motor (412) located on one side of the connecting frame (411), a main shaft (413) connected to the output end of the motor (412), and a roller (414) mounted on the main shaft (413). The roller (414) has a drive groove (415).

5. The casting surface post-treatment and online inspection device according to claim 1, characterized in that: The outer ring (42) includes a locking post (421), a plurality of scrapers (422) arranged on the inner wall of the outer ring (42), and a plurality of drainage grooves (423) opened at the bottom of the outer ring (42). The outer wall of the outer ring (42) is provided with a sealing ring (424), which is fixedly installed on the body (1). A plurality of drainage grooves (425) are opened in a ring on the sealing ring (424).

6. The casting surface post-treatment and online inspection device according to claim 1, characterized in that: The transmission module (724) has a built-in preamplifier and a wireless transmission module, which can initially amplify the weak echo signal collected, improve the signal-to-noise ratio, and reduce signal attenuation and interference in subsequent transmission.

7. The casting surface post-treatment and online inspection device according to claim 1, characterized in that: The control unit (722) has a built-in wireless receiving module that transmits energy and data via electromagnetic coupling and uploads it to the host computer signal processing and imaging system via Ethernet.

8. The casting surface post-treatment and online inspection device according to claim 1, characterized in that: The bottom of the transmission module (724) is connected to the bottom of the outer cylinder (723) by a spring, and the spring can reset the transmission module (724).

9. The casting surface post-treatment and online inspection device according to claim 1, characterized in that: The two gears (97) mesh with the first gear ring (93) and the second gear ring (95) respectively, and can drive the first gear ring (93) and the second gear ring (95) to rotate when rotating, thereby synchronously driving the first rotating tube (92) and the second rotating tube (94) to rotate.

10. The casting surface post-treatment and online inspection device according to claim 5, characterized in that: The number of drainage channels (425) and leak channels (423) is the same, and the distance between each two adjacent locking pins (421) is equal to the circumference of the drive groove (415) on the roller (414) rotating one revolution.

Images