Automatic flip casting surface defect detection device and method

Abstract

The present invention relates to the technical field of casting surface defect detection, specifically to an automatically flipping casting surface defect detection device and method thereof, comprising a workbench, a flipping and photographing mechanism, a locking mechanism, and a secondary detection mechanism, wherein the top of the workbench is fixedly connected to a bracket, one end of the workbench is provided with a control panel, the top of the workbench is symmetrically provided with a conveyor belt, the top of the conveyor belt is provided with a casting body, a first detection frame is provided at the top of a group of the conveyor belts, the bottom end of the first detection frame is provided with a flipping and photographing mechanism for photographing and flipping, and one side of the workbench is provided with a secondary detection mechanism for further detecting defects. This device can perform detection fully automatically, thereby reducing the user's workload and facilitating user operation. By performing detection in two ways and in all aspects, it can further improve the detection quality, reduce detection errors, and improve the product qualification rate.

Description

Technical Field

[0001] The present invention relates to the technical field of casting surface defect detection, in particular to an automatic flipping casting surface defect detection device and a method thereof. Background Art

[0002] Castings are metal objects obtained by various casting methods. That is, smelted liquid metal is poured into a pre-prepared mold by pouring, injection, suction or other casting methods. After cooling, it is polished and processed to obtain an object with a certain shape, size and performance. The defects on the surface of castings include sand holes, pores, sand adhesion, cold shut and lack of meat. The most common detection method is visual inspection.

[0003] At present, some existing casting inspection devices are in use. Not only is the inspection process cumbersome, but the operation is also very inconvenient, which leads to low inspection efficiency for users, large errors in inspection data, and low inspection quality. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatically flipping casting surface defect detection device and method thereof, so as to solve the problem raised in the above background technology that some of the existing casting detection devices are not only cumbersome in detection process, but also very inconvenient to operate, which leads to low detection efficiency for users, large detection data errors and low detection quality. The present device can perform detection fully automatically, thereby reducing the user's workload and facilitating user operation. By performing detection in two ways and in all aspects, the detection quality can be further improved, the detection error can be reduced, and the product qualification rate can be improved.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automatically flipping casting surface defect detection device and method thereof, the device comprising a workbench, a flipping and photographing mechanism, a locking mechanism, and a secondary detection mechanism, wherein a bracket is fixedly connected to the top of the workbench, a control panel is provided at one end of the workbench, a conveyor belt is symmetrically provided at the top of the workbench, a casting body is provided at the top of the conveyor belt, four groups of size detection sensors are provided at the top of the workbench, a first detection frame is provided at the top of one group of conveyor belts, a flipping and photographing mechanism for photographing and flipping is provided at the bottom end of the first detection frame, and a secondary detection mechanism for further detecting defects is provided on one side of the workbench.

[0006] Preferably, a fifth electric push rod is provided at one end of the bracket, and the output end of the fifth electric push rod is fixedly connected to the second detection frame, and the second detection frame is located on one side of the first detection frame, and the bottom end of the second detection frame is symmetrically slidably connected to a slider, and one end of the second detection frame is provided with a second motor, the output end of the second motor is fixedly connected to a reverse threaded rod, and one end of the reverse threaded rod is connected to the inner wall of the second detection frame through a bearing, and the sliders are all connected to the reverse threaded rod through threads, and the bottom ends of the sliders are all fixedly connected to a movable frame, and both ends of the movable frame are located at both ends of the casting body, and both ends of the movable frame are provided with a second camera head, and the size detection sensors are respectively located on both sides of the second detection frame and the first detection frame, and the movable frames are all L-shaped, and the control ends of the conveyor belt, the second motor, the second camera head and the fifth electric push rod are all electrically connected to the external power supply through the control panel, and can take photos, sample and upload photos of both ends of the casting body.

[0007] Preferably, a movable plate is provided at the top of the bracket, and both ends of the movable plate are slidably connected to guide rods, a first electric push rod is provided at the top of the movable plate, and the output end of the first electric push rod is fixedly connected to the bracket, a second electric push rod is provided in the middle of the movable plate, and the output end of the second electric push rod is fixedly connected to the first detection frame, and the control ends of the first electric push rod and the second electric push rod are both electrically connected to the external power supply through the control panel, so that the casting body can be removed for secondary inspection.

[0008] Preferably, the flipping photographing mechanism includes a first photographing head, an adjusting block, a third electric push rod, a first limiting rod, a connecting head, a fourth electric push rod, a second limiting rod, a clamping plate, a flipping block, a rotating groove, a rotating plate, a movable rotating rod, a worm gear, a worm, a first motor, an angle rotating ring and an angle detection sensor, the bottom end of the first detection frame is provided with a first photographing head, one end of the first detection frame is provided with an adjusting block, one end of the first detection frame is provided with a third electric push rod, and the output end of the third electric push rod is fixedly connected to the top end of the adjusting block, one side of the adjusting block is fixedly connected to the first limiting rod, and the first limiting rod is slidably connected to one end of the first detection frame, one end of the adjusting block is provided with a connecting head, the bottom end of the adjusting block is provided with a fourth electric push rod, and the output end of the fourth electric push rod is fixedly connected to the connecting head, the top end of the connecting head is fixedly connected to the second limiting rod, and one end of the second limiting rod is slidably connected to the adjusting block, the connecting The worm gear of the first motor is connected to the guide rail by a bearing, and one end of the worm gear is connected to the inner wall of the groove by a bearing. The worm gear is connected to the inner wall of the groove by a bearing, and one end of the worm gear is connected to the inner wall of the groove by a bearing. The inside of the groove is connected to the worm gear by a bearing, and one end of the worm gear extends to the outside of the flip block. One end of the flip block is provided with a first motor, and the output end of the first motor is fixedly connected to one end of the worm gear. An angle rotating ring is provided on one side of the rotating plate, and an angle detection sensor is provided at one end of the flip block, and the angle detection sensor corresponds to the angle rotating ring. A locking mechanism for locking the movable rotating rod and the rotating plate is provided inside the flip block, which can automatically flip, take pictures, and upload.

[0009] The cam is secured to the interior of the locking plate and secured to the interior of the locking plate by a spring which is adapted to engage the locking cam at the rear of the locking plate and engage with the locking cam at the rear of the locking plate.

[0010] Preferably, the control ends of the first motor, angle rotating ring, angle detection sensor and push-pull electromagnet are all electrically connected to the external power supply through the control panel, the inclined groove is in the shape of a relative inclined surface, one end of the inclined block is in the shape of an inclined surface corresponding to the inclined groove, and the bottom end of the locking plate is in the shape of an arc, which is convenient for locking.

[0011] Preferably, the secondary detection mechanism includes an ultrasonic processor, a movable table, a third limit rod, a first threaded rod, a third motor, an extension plate, a second threaded rod, a fourth motor and a probe, an ultrasonic processor is provided at one end of the workbench, a movable table is provided at one end of the ultrasonic processor, the bottom end of the movable table is slidably connected to the third limit rod, and both ends of the third limit rod are fixedly connected to the workbench, the bottom end of the movable table is threadedly connected to the first threaded rod, one end of the workbench is provided with a third motor, and the output end of the third motor is fixedly connected to one end of the first threaded rod, one end of the first threaded rod is connected to the workbench through a bearing, one side of the movable table is slidably connected to the extension plate, one end of the extension plate is threadedly connected to the second threaded rod, and the top of the second threaded rod is connected to the movable table through a bearing, the bottom end of the movable table is provided with a fourth motor, and the output end of the fourth motor is fixedly connected to the second threaded rod, one end of the extension plate is provided with a probe, the third limit rod is located at the bottom end of the first threaded rod, which can perform secondary detection and further improve the accuracy of detection.

[0012] Preferably, the output end of the probe is electrically connected to the ultrasonic processor, and the control ends of the ultrasonic processor, the third motor and the fourth motor are all electrically connected to an external power supply through a control panel, so as to facilitate automatic operation of the device.

[0013] How the device operates:

[0014] Step 1: Take a photo at a time, and convey the casting body through the conveyor belt. When the casting body moves to the two sets of size detection sensors in front, the casting body is positioned by the size detection sensors. At this time, the conveyor belt is closed, and the output end of the fifth electric push rod drives the second detection frame to move down until the second camera heads at both ends of the movable frame are at both ends of the casting body. After the size of the casting body is detected by the size detection sensor, the second motor drives the slider and the movable frame to move through the reverse threaded rod, so that the second camera heads are at the appropriate positions on both sides of the casting body, thereby completing the automatic adjustment work. At this time, the casting body is photographed and sampled by the two sets of second camera heads and uploaded;

[0015] Step 2: Take a second photo. After one end of the casting body is fitted with the rotating plate, the third electric push rod controls the adjustment block and the clamping plate to move downward, and the fourth electric push rod is used to clamp the clamping plate and the rotating plate to clamp the casting body. The second electric push rod is used to move the first detection frame and the casting body upward, and the first camera head is used to take photos of the casting body and upload them. The first motor rotates the worm gear, the movable rotating rod and the rotating plate through the worm, driving the casting body and the angle rotating ring to rotate. The angle detection sensor detects and controls the angle of rotation of the angle rotating ring, the rotating plate and the casting body until one circle is taken.

[0016] Step 3: Unlock, take a second photo of the casting body, and unlock the casting body before rotating it. The push-pull electromagnet drives the inclined block to move backward so that the inclined surface of the inclined block no longer conflicts with the inclined slot. At this time, the two sets of lock plates fit together under the action of the torsion spring, and unlocking is completed.

[0017] Step 4: Transfer, the second electric push rod, the first detection rack and the casting body are moved to the top of another set of conveyor belts through the first electric push rod and the moving plate, and then the first detection rack and the second electric push rod are reset again;

[0018] Step 5: Second random inspection: the height of the extension plate and the probe is controlled by the fourth motor and the second threaded rod so that the probe is at the top of the casting body. The movable platform, the extension plate and the probe are moved by the third motor and the first threaded rod, so that the casting body is scanned by the probe, and the ultrasonic processor analyzes the inside of the casting body.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The user controls the device to work fully automatically through the control panel, and the casting body is conveyed by the conveyor belt. When the casting body moves to the front two sets of size detection sensors, the position of the casting body is detected by the size detection sensors. When the casting body moves to the middle of the size detection sensors, the conveyor belt is closed, and the output end of the fifth electric push rod drives the second detection frame to move down until the second camera heads at both ends of the movable frame are at both ends of the casting body. After the size detection sensors detect the size of the casting body, the second motor drives the slider and the movable frame to move through the reverse threaded rod, so that the second camera heads are at the appropriate positions on both sides of the casting body, thereby completing the automatic adjustment work. At this time, the two sets of second camera heads are used to take pictures of the casting body, sample it, and upload it for detection. After the completion, the fifth electric push rod is used to reset the second detection frame and the movable frame to facilitate the detection of the next group of casting bodies. When the casting body moves to the middle of the two groups of size detection sensors at the back, it is at the bottom end of the center of the second electric push rod and the first detection frame, and one end of the casting body is also in contact with the rotating plate. At this time, the third electric push rod controls the adjustment block and the clamping plate to move downward until the clamping plate is in the middle of the casting body, and then the fourth electric push rod is used to move the connecting head and the clamping plate until the clamping plate and the rotating plate clamp the casting body, and the second electric push rod is used to move the first detection frame and the casting body upward. At this time, the first camera head is used to take pictures of the casting body for sampling and uploading, and then the push-pull electromagnet drives the inclined block to move backward so that the inclined surface of the inclined block no longer conflicts with the inclined groove. The first motor is then unlocked by pushing and pulling the electromagnet and the bevel block, and the movable rotating rod and the worm gear are driven by the first motor, so that the movable rotating rod, the rotating plate and the first detection frame are locked. The rotating rod, rotating plate and casting body rotate, and the angle is controlled by the angle rotating ring and the angle detection sensor. The photos are taken and uploaded in sequence until a circle is taken. After the sampling and detection, the casting body is placed on the conveyor belt by the second electric push rod, and the clamping plate and the rotating plate are no longer clamped on the casting body by the fourth electric push rod. The first detection frame is moved up again by the second electric push rod so that the rotating plate does not block the movement of the casting body, and then the conveyor belt drives the casting body to move. When the casting body moves out of the two sets of size detection sensors at the back, the second electric push rod drives the first detection frame to move down and wait for the next set of casting bodies. At the same time, the data of the casting body and the test results after the detection are displayed on the control panel to remind the user whether it is a qualified product.When the set number of casting bodies has been inspected, the first electric push rod and the movable plate cause the second electric push rod, the first inspection frame and the casting body to move to the top of another set of conveyor belts, and then the first inspection frame and the second electric push rod are reset again. At the same time, the height of the extension plate and the probe are controlled by the fourth motor and the second threaded rod, so that the probe is at the top of the casting body. The movable platform, the extension plate and the probe are moved by the third motor and the first threaded rod, so that the casting body is scanned by the probe, and the ultrasonic processor analyzes the inside of the casting body. Finally, the control panel displays and records the results, and the casting is transported by the conveyor belt after the inspection is completed. This device can perform inspections fully automatically, thereby reducing the user's workload and facilitating user operation. By performing inspections in two ways and in all aspects, the inspection quality can be further improved, the inspection error can be reduced, and the qualified rate of the product can be increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional schematic diagram of the present invention;

[0022] Figure 2 It is a cross-sectional perspective schematic diagram of the present invention;

[0023] Figure 3 It is a three-dimensional schematic diagram of the movable plate, the first detection frame and the adjustment block in the present invention;

[0024] Figure 4 It is a cross-sectional perspective schematic diagram of the adjustment block and the flip block in the present invention;

[0025] Figure 5 It is a three-dimensional schematic diagram of the worm and the angle rotation ring in the present invention;

[0026] Figure 6 It is a cross-sectional perspective schematic diagram of the transfer tank and the movable tank of the present invention;

[0027] Figure 7 It is a cross-sectional perspective diagram of the movable groove and the outer sleeve in the present invention;

[0028] Figure 8 Schematic diagram of the lock slot, outer sleeve and lock plate in the present invention;

[0029] Figure 9 A schematic cross-sectional perspective view of the bracket and the second detection frame in the present invention;

[0030] Figure 10 It is a cross-sectional perspective schematic diagram of the moving platform and the extension plate in the present invention.

[0031] In the figure: 1. workbench; 2. bracket; 3. control panel; 4. conveyor belt; 5. casting body; 6. moving plate; 7. guide rod; 8. first electric push rod; 9. first detection frame; 10. second electric push rod; 11. first camera head; 12. size detection sensor; 13. adjustment block; 14. third electric push rod; 15. first limit rod; 16. connector; 17. fourth electric push rod; 18. second limit rod; 19. clamping plate; 20. turning block; 21. rotating groove; 22. rotating plate; 23. movable rotating rod; 24. worm gear; 25. worm; 26. first motor; 27. angle rotating ring ;28. Angle detection sensor;29. Second detection frame;30. Movable frame;31. Slider;32. Second motor;33. Reverse threaded rod;34. Second camera head;35. Fifth electric push rod;36. Ultrasonic processor;37. Moving table;38. Third limit rod;39. First threaded rod;40. Third motor;41. Extension plate;42. Second threaded rod;43. Fourth motor;44. Probe;45. Movable slot;46. Lock slot;47. Outer sleeve;48. Inner rotating rod;49. Torsion spring;50. Lock plate;51. Inclined slot;52. Push-pull electromagnet;53. Inclined block. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] See also Figures 1-10 , an embodiment provided by the present invention:

[0034] An automatic flip casting surface defect detection device and method thereof, the device comprising a workbench 1, a flipping and photographing mechanism, a locking mechanism, and a secondary detection mechanism. A bracket 2 is fixedly connected to the top of the workbench 1, a control panel 3 is provided at one end of the workbench 1, conveyor belts 4 are symmetrically provided at the top of the workbench 1, a casting body 5 is provided at the top of the conveyor belts 4, four groups of size detection sensors 12 are provided at the top of the workbench 1, a first detection frame 9 is provided at the top of one group of conveyor belts 4, and a flipping and photographing mechanism for photographing and flipping is provided at the bottom end of the first detection frame 9. A secondary detection mechanism for further defect detection is provided on one side of the workbench 1;

[0035] See also Figure 2 and Figure 3In this embodiment, a movable plate 6 is provided at the top of the bracket 2, and both ends of the movable plate 6 are slidably connected to guide rods 7. A first electric push rod 8 is provided at the top of the movable plate 6, and the output end of the first electric push rod 8 is fixedly connected to the bracket 2. A second electric push rod 10 is provided in the middle of the movable plate 6, and the output end of the second electric push rod 10 is fixedly connected to the first detection frame 9. The control ends of the first electric push rod 8 and the second electric push rod 10 are both electrically connected to the external power supply through the control panel 3. When a secondary inspection is required, the output end of the first electric push rod 8 drives the movable plate 6 to move, and the movable plate 6 is moved so that the second electric push rod 10, the first detection frame 9 and the casting body 5 are moved to the top of another group of conveyor belts 4, so that the casting body 5 can be removed for secondary inspection.

[0036] See also Figure 2 and Figure 4In this embodiment, a fifth electric push rod 35 is provided at one end of the bracket 2, and the output end of the fifth electric push rod 35 is fixedly connected to the second detection frame 29, and the second detection frame 29 is located on one side of the first detection frame 9. The bottom end of the second detection frame 29 is symmetrically slidably connected to the slider 31, and one end of the second detection frame 29 is provided with a second motor 32, and the output end of the second motor 32 is fixedly connected to the reverse threaded rod 33, and one end of the reverse threaded rod 33 is connected to the inner wall of the second detection frame 29 through a bearing, and the slider 31 is connected to the reverse threaded rod 33. The bottom ends of the sliders 31 are fixedly connected to the movable frame 30, and both ends of the movable frame 30 are located at both ends of the casting body 5. The two ends of the movable frame 30 are provided with a second camera head 34. The size detection sensor 12 is located on both sides of the second detection frame 29 and the first detection frame 9 respectively. The movable frames 30 are all L-shaped. The control ends of the conveyor belt 4, the second motor 32, the second camera head 34 and the fifth electric push rod 35 are all electrically connected to the external power supply through the control panel 3. The casting body 5 is transported by the conveyor belt 4. When the casting body 5 is When it moves to the front two groups of size detection sensors 12, the position of the casting body 5 is detected by the size detection sensors 12. When the casting body 5 moves to the middle of the size detection sensors 12, the conveyor belt 4 is closed, and the output end of the fifth electric push rod 35 drives the second detection frame 29 to move down until the second camera heads 34 at both ends of the movable frame 30 are at both ends of the casting body 5. After the size of the casting body 5 is detected by the size detection sensor 12, the output end of the second motor 32 drives the reverse threaded rod 33 to rotate. The rotating reverse threaded rod 33 can make the two groups of sliders 31 approach or move away from each other at the same time. The moving slider 31 drives the movable frame 30 to move until the second camera heads 34 are at appropriate positions on both sides of the casting body 5, thereby completing the automatic adjustment work. At this time, the two groups of second camera heads 34 are used to take photos of the casting body 5 for sampling and uploading. After the detection is completed, the second detection frame 29 and the movable frame 30 are reset by the fifth electric push rod 35 to facilitate the detection of the next group of casting bodies 5, and to take photos of both ends of the casting body 5 for sampling and uploading.

[0037] See also Figure 6-Figure 8In this embodiment, the locking mechanism includes a movable groove 45, a locking groove 46, an outer sleeve 47, an inner rotating rod 48, a torsion spring 49, a locking plate 50, an inclined groove 51, a push-pull electromagnet 52 and an inclined block 53. The movable groove 45 is opened inside the rotating plate 22, and the middle part of the movable rotating rod 23 is opened. The inner wall of the movable groove 45 is connected to the outer sleeve 47 through a bearing. The inner rotating rod 48 is set inside the outer sleeve 47, and both ends of the inner rotating rod 48 are connected to the movable groove 45 by bearings. The outer sleeve 47 Both ends of the locking plate 22 are provided with a torsion spring 49, and both ends of the torsion spring 49 are fixedly connected to the outer sleeve 47 and the inner rotating rod 48 respectively. Two sets of locking plates 50 are provided inside the locking groove 46, and the top ends of the locking plates 50 are fixedly connected to the outer sleeve 47 and the inner rotating rod 48 respectively. The upper and middle parts of one set of locking plates 50 are slidably connected to the middle part of the outer sleeve 47. The upper and middle parts of the locking plates 50 are all provided with an oblique groove 51. One end of the rotating plate 22 is provided with a push-pull electromagnet 52, and the output end of the push-pull electromagnet 52 is fixedly connected to the oblique groove 51. The block 53 is located between the two groups of inclined grooves 51, and the push-pull electromagnet 52 causes the inclined block 53 to be inserted into the inner part of the inclined groove 51 between the two groups of locking plates 50. At this time, the inclined surface of the inclined block 53 conflicts with the inclined surface of the inclined groove 51, which enables the locking plate 50 to perform a circular motion with the inner rotating rod 48 as the axis. At this time, the two groups move away from each other, and at the same time, the outer sleeve 47 and the inner rotating rod 48 are driven to rotate in the opposite direction by the locking plate 50. The outer sleeve 47 and the inner rotating rod 48 can be used to rotate the torsional The force spring 49 is compressed until the two ends of the locking plate 50 come into contact with the inner wall of the locking groove 46, thereby locking the movable rotating rod 23, the rotating plate 22 and the first detection frame 9, and preventing the gap between the worm gear 24 and the worm 25 from causing the movable rotating rod 23, the rotating plate 22 and the casting body 5 to shake, thereby affecting the photographing and sampling of the first photographing head 11, further improving the sampling accuracy of the device, and being able to lock the rotating plate 22 and the movable rotating rod 23 to prevent the casting body 5 from shaking during photographing;

[0038] See also Figure 2-Figure 5In this embodiment, the flipping photographing mechanism includes a first photographing head 11, an adjusting block 13, a third electric push rod 14, a first limiting rod 15, a connecting head 16, a fourth electric push rod 17, a second limiting rod 18, a clamping plate 19, a flipping block 20, a rotating groove 21, a rotating plate 22, a movable rotating rod 23, a worm gear 24, a worm 25, a first motor 26, an angle rotating ring 27 and an angle detection sensor 28. The first photographing head 11 is provided at the bottom end of the first detection frame 9, the adjusting block 13 is provided at one end of the first detection frame 9, the third electric push rod 14 is provided at one end of the first detection frame 9, and the output end of the third electric push rod 14 is fixedly connected to the top of the adjusting block 13, and the first limiting rod 15 is fixedly connected to one side of the adjusting block 13. 5 is slidably connected to one end of the first detection frame 9, one end of the adjustment block 13 is provided with a connector 16, the bottom end of the adjustment block 13 is provided with a fourth electric push rod 17, and the output end of the fourth electric push rod 17 is fixedly connected to the connector 16, the top of the connector 16 is fixedly connected to the second limit rod 18, and one end of the second limit rod 18 is slidably connected to the adjustment block 13, one end of the connector 16 is connected to the clamping plate 19 through a bearing, one end of the first detection frame 9 is fixedly connected to a flip block 20, one end of the flip block 20 is provided with a rotating groove 21, one end of the flip block 20 is provided with a rotating plate 22, the interior of the rotating groove 21 is connected to a movable rotating rod 23 through a bearing, and one end of the movable rotating rod 23 is fixedly connected to the rotating plate 22, and one end of the movable rotating rod 23 is connected to the rotating plate 22. The bearing is connected to a worm gear 24, and one end of the worm gear 24 is connected to the inner wall of the rotating groove 21 through a bearing. The interior of the rotating groove 21 is connected to a worm 25 through a bearing, and one end of the worm 25 extends to the outside of the flip block 20. A first motor 26 is provided at one end of the flip block 20, and the output end of the first motor 26 is fixedly connected to one end of the worm 25. An angle rotating ring 27 is provided on one side of the rotating plate 22, and an angle detection sensor 28 is provided at one end of the flip block 20, and the angle detection sensor 28 corresponds to the angle rotating ring 27. A locking mechanism for locking the movable rotating rod 23 and the rotating plate 22 is provided inside the flip block 20. When the casting body 5 moves to the middle of the two sets of size detection sensors 12 at the back, it is connected to the second electric push rod 27 at this time. The bottom end of the center of the rod 10 and the first detection frame 9, and one end of the casting body 5 and the rotating plate 22 are also in a state of fitting the rotating plate 22. At this time, the output end of the third electric push rod 14 extends, thereby causing the adjustment block 13 and the clamping plate 19 to move down until the clamping plate 19 is in the middle of the casting body 5, and then the fourth electric push rod 17 is used to move the connecting head 16 and the clamping plate 19 until the clamping plate 19 and the rotating plate 22 clamp the casting body 5, and the first detection frame 9 and the casting body 5 are moved up by the second electric push rod 10. At this time, the casting body 5 is photographed, sampled and uploaded by the first camera head 11, and the movable rotating rod 23, the rotating plate 22 and the casting body 5 are rotated by the first motor 26, the worm 25 and the worm gear 24.The angle is controlled by the angle rotation ring 27 and the angle detection sensor 28, and the pictures are taken, sampled and uploaded in sequence until a circle is taken, and then the pictures are automatically flipped, sampled and uploaded;

[0039] See also Figure 2 and Figure 10 In this embodiment, the secondary detection mechanism includes an ultrasonic processor 36, a movable platform 37, a third limiting rod 38, a first threaded rod 39, a third motor 40, an extension plate 41, a second threaded rod 42, a fourth motor 43 and a probe 44. An ultrasonic processor 36 is provided at one end of the workbench 1, and a movable platform 37 is provided at one end of the ultrasonic processor 36. The bottom end of the movable platform 37 is slidably connected to the third limiting rod 38, and both ends of the third limiting rod 38 are fixedly connected to the workbench 1. The bottom end of the movable platform 37 is threadedly connected to the first threaded rod 39. One end of the workbench 1 is provided with a third motor 40, and the output end of the third motor 40 is fixedly connected to one end of the first threaded rod 39. One end of the first threaded rod 39 is connected to the workbench 1 through a bearing. An extension plate 41 is slidably connected to one side of the movable platform 37. One end of the extension plate 41 is threadedly connected to the second threaded rod 42, and the second threaded rod 42 The top end is connected to the movable platform 37 through a bearing, and the bottom end of the movable platform 37 is provided with a fourth motor 43, and the output end of the fourth motor 43 is fixedly connected to the second threaded rod 42, and a probe 44 is provided at one end of the extension plate 41, and the third limiting rod 38 is located at the bottom end of the first threaded rod 39. The output end of the fourth motor 43 drives the second threaded rod 42 to rotate, and the height of the extension plate 41 and the probe 44 can be adjusted by rotating the second threaded rod 42, so that the probe 44 is at the top end of the casting body 5, and then the output end of the third motor 40 drives the first threaded rod 39 to rotate, and the movable platform 37, the extension plate 41 and the probe 44 are moved by the rotating first threaded rod 39, so that the casting body 5 is scanned by the probe 44, and the ultrasonic processor 36 analyzes the interior of the casting body 5, and finally displays and records it through the control panel 3, so that secondary detection can be performed to further improve the accuracy of the detection;

[0040] It should be noted that the control ends of the first motor 26, the angle rotation ring 27, the angle detection sensor 28, and the push-pull electromagnet 52 are all electrically connected to the external power supply through the control panel 3. The inclined groove 51 is in the shape of an opposite inclined surface, and one end of the inclined block 53 is in the shape of an inclined surface corresponding to the inclined groove 51. The bottom end of the lock plate 50 is in the shape of an arc for easy locking. The output end of the probe 44 is electrically connected to the ultrasonic processor 36. The control ends of the ultrasonic processor 36, the third motor 40, and the fourth motor 43 are all electrically connected to the external power supply through the control panel 3, so that the device can operate automatically.

[0041] The device operates as follows:

[0042] Step 1: Take a photo at one time. The casting body 5 is conveyed by the conveyor belt 4. When the casting body 5 moves to the two sets of size detection sensors 12 in front, the casting body 5 is positioned by the size detection sensors 12. At this time, the conveyor belt 4 is closed, and the output end of the fifth electric push rod 35 drives the second detection frame 29 to move downward until the second camera heads 34 at both ends of the movable frame 30 are at both ends of the casting body 5. After the size detection sensor 12 detects the size of the casting body 5, the second motor 32 drives the slider 31 and the movable frame 30 to move through the reverse threaded rod 33, so that the second camera heads 34 are at appropriate positions on both sides of the casting body 5, thereby completing the automatic adjustment work. At this time, the casting body 5 is photographed and sampled and uploaded by the two sets of second camera heads 34;

[0043] Step 2: Take a second photo. After one end of the casting body 5 is fitted with the rotating plate 22, the third electric push rod 14 controls the adjustment block 13 and the clamping plate 19 to move downward, and the fourth electric push rod 17 causes the clamping plate 19 and the rotating plate 22 to clamp the casting body 5. The second electric push rod 10 causes the first detection frame 9 and the casting body 5 to move upward, and the first camera head 11 is used to take photos of the casting body 5, sample the photos, and upload them. The first motor 26 rotates the worm gear 24, the movable rotating rod 23, and the rotating plate 22 through the worm 25, driving the casting body 5 and the angle rotating ring 27 to rotate. The angle detection sensor 28 detects and controls the angle of rotation of the angle rotating ring 27, the rotating plate 22, and the casting body 5 until one cycle is taken.

[0044] Step 3: Unlocking. The casting body 5 is photographed for the second time. The casting body 5 needs to be unlocked before it is rotated. The push-pull electromagnet 52 drives the inclined block 53 to move backward so that the inclined surface of the inclined block 53 no longer conflicts with the inclined groove 51. At this time, the two sets of lock plates 50 are in contact with each other under the action of the torsion spring 49, and the unlocking is completed.

[0045] Step 4: Transfer, the second electric push rod 10, the first detection frame 9 and the casting body 5 are moved to the top of another set of conveyor belts 4 through the first electric push rod 8 and the movable plate 6, and then the first detection frame 9 and the second electric push rod 10 are reset again;

[0046] Step 5: Second random inspection, the height of the extension plate 41 and the probe 44 are controlled by the fourth motor 43 and the second threaded rod 42, so that the probe 44 is at the top of the casting body 5, and the movable platform 37, the extension plate 41 and the probe 44 are moved by the third motor 40 and the first threaded rod 39, so that the casting body 5 is scanned by the probe 44, and the ultrasonic processor 36 analyzes the interior of the casting body 5.

[0047] Working principle: The user controls the device to work fully automatically through the control panel 3, and the casting body 5 is conveyed by the conveyor belt 4. When the casting body 5 moves to the front two sets of size detection sensors 12, the position of the casting body 5 is detected by the size detection sensor 12. When the casting body 5 moves to the middle of the size detection sensor 12, the conveyor belt 4 is closed, and the output end of the fifth electric push rod 35 drives the second detection frame 29 to move downward until the second camera heads 34 at both ends of the movable frame 30 are at both ends of the casting body 5. After the size of the casting body 5 is detected by the size detection sensor 12, the output end of the second motor 32 drives the reverse threaded rod 33 to rotate. By rotating the reverse threaded rod 33, the two sets of sliders 31 can be simultaneously approached or The movable frame 30 moves away from each other, and the moving slider 31 drives the movable frame 30 to move until the second camera head 34 is in the appropriate position on both sides of the casting body 5, thereby completing the automatic adjustment work. At this time, the casting body 5 is photographed and sampled and uploaded by the two groups of second camera heads 34. After the detection is completed, the second detection frame 29 and the movable frame 30 are reset by the fifth electric push rod 35 to facilitate the detection of the next group of casting bodies 5. When the casting body 5 moves to the middle of the two groups of size detection sensors 12 at the back, it is at the bottom end of the center of the second electric push rod 10 and the first detection frame 9, and one end of the casting body 5 and the rotating plate 22 are also in a state of fitting with the rotating plate 22. At this time, the output end of the third electric push rod 14 is extended, thereby causing the adjustment block 13 and the clamping plate 19 to move down until the clamping plate 19 is in the middle of the casting body 5, and then the fourth electric push rod 17 is used to move the connecting head 16 and the clamping plate 19 until the clamping plate 19 and the rotating plate 22 clamp the casting body 5, and the first detection frame 9 and the casting body 5 are moved up by the second electric push rod 10. At this time, the casting body 5 is photographed and sampled and uploaded by the first camera head 11, and then the push-pull electromagnet 52 drives the inclined block 53 to move backward, so that the inclined surface of the inclined block 53 no longer conflicts with the inclined groove 51. At this time, under the action of the torsion spring 49's own rebound force, the inner rotating rod 48 and the torsion spring 49 are also caused to rotate relative to each other, and the two sets of lock plates 50 are driven to rotate by the inner rotating rod 48 and the torsion spring 49 until the two sets of lock plates 50 are fitted together, and the first motor 26 drives the worm gear 2 through the worm 25. 4. The movable rotating rod 23 and the rotating plate 22 rotate, driving the casting body 5 and the angle rotating ring 27 to rotate. After the angle rotating ring 27 rotates ninety degrees, the first motor 26 is turned off by the angle detection sensor 28. At the same time, the push-pull electromagnet 52 causes the inclined block 53 to be inserted into the inner part of the inclined groove 51 between the two sets of locking plates 50. At this time, the inclined surface of the inclined block 53 conflicts with the inclined surface of the inclined groove 51, which enables the locking plate 50 to perform a circular motion with the inner rotating rod 48 as the axis. At this time, the two groups move to the side away from each other, and at the same time, the outer sleeve 47 and the inner rotating rod 48 are driven to rotate to the opposite side through the locking plate 50. The outer sleeve 47 and the inner rotating rod 48 can compress the torsion spring 49 until the two ends of the locking plate 50 conflict with the inner wall of the locking groove 46.Thus, the movable rotating rod 23, the rotating plate 22 and the first detection frame 9 can be locked, and the gap between the worm gear 24 and the worm 25 can be avoided so that the movable rotating rod 23, the rotating plate 22 and the casting body 5 do not shake, thereby affecting the photographing and sampling of the first photographing head 11, further improving the sampling accuracy of the device, and then unlocking is carried out by the push-pull electromagnet 52 and the inclined block 53, and the movable rotating rod 23, the rotating plate 22 and the casting body 5 are rotated by the first motor 26, the worm 25 and the worm gear 24, and the angle is controlled by the angle rotating ring 27 and the angle detection sensor 28, and photographing and uploading are carried out in sequence. After a week of filming and sampling, the casting body 5 is placed on the conveyor belt 4 by the second electric push rod 10, and the clamping plate 19 and the rotating plate 22 are no longer clamped on the casting body 5 by the fourth electric push rod 17. The first detection frame 9 is moved up again by the second electric push rod 10 so that the rotating plate 22 does not block the movement of the casting body 5. Then the conveyor belt 4 drives the casting body 5 to move. When the casting body 5 moves out of the two sets of size detection sensors 12 at the back, the second electric push rod 10 drives the first detection frame 9 to move down, waiting for the next set of casting bodies 5. At the same time, the detection of the casting body is completed through the control panel 3. 5 and the test results are displayed to remind the user whether it is a qualified product. When the casting body 5 is tested to the set number, the output end of the first electric push rod 8 drives the movable plate 6 to move, and the movable plate 6 moves the second electric push rod 10, the first detection frame 9 and the casting body 5 to the top of another group of conveyor belts 4, and then the first detection frame 9 and the second electric push rod 10 are reset again. At the same time, the output end of the fourth motor 43 drives the second threaded rod 42 to rotate, and the height of the extension plate 41 and the probe 44 can be adjusted by the rotating second threaded rod 42, so that the probe 44 is at the top of the casting body 5, and then the second electric push rod 10 is reset again. The output end of the third motor 40 drives the first threaded rod 39 to rotate. The rotating first threaded rod 39 causes the movable platform 37, the extension plate 41, and the probe 44 to move. The probe 44 then scans the casting body 5. The ultrasonic processor 36 analyzes the interior of the casting body 5. Finally, the control panel 3 displays and records the information. After the test is completed, the casting is transported via the conveyor belt 4. This device can perform testing fully automatically, thereby reducing the user's workload and facilitating user operation. By performing testing in two ways and in all aspects, it can further improve the quality of testing, reduce testing errors, and increase the product qualification rate.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An automatic flip casting surface defect detection device, characterized in that: The invention comprises a workbench (1), a flipping and photographing mechanism, a locking mechanism, and a secondary detection mechanism. The top of the workbench (1) is fixedly connected to a bracket (2), one end of the workbench (1) is provided with a control panel (3), the top of the workbench (1) is symmetrically provided with a conveyor belt (4), the top of the conveyor belt (4) is provided with a casting body (5), the top of the workbench (1) is provided with four groups of size detection sensors (12), the top of one group of the conveyor belts (4) is provided with a first detection frame (9), the bottom end of the first detection frame (9) is provided with a flipping and photographing mechanism for taking pictures and flipping, and one side of the workbench (1) is provided with a secondary detection mechanism for further detecting defects; The flipping photographing mechanism comprises a first photographing head (11), an adjusting block (13), a third electric push rod (14), a first limiting rod (15), a connecting head (16), a fourth electric push rod (17), a second limiting rod (18), a clamping plate (19), a flipping block (20), a rotating groove (21), a rotating plate (22), a movable rotating rod (23), a worm wheel (24), a worm (25), a first motor (26), an angle rotating ring (27) and an angle detection sensor (28), wherein the first photographing head (11) is provided at the bottom end of the first detection frame (9), the adjusting block (13) is provided at one end of the first detection frame (9), the third electric push rod (14) is provided at one end of the first detection frame (9), the first limiting rod (15) is fixedly connected to one side of the adjusting block (13), the connecting head (16) is provided at one end of the adjusting block (13), the fourth electric push rod (17) is provided at the bottom end of the adjusting block (13), the connecting head (16) is provided at the The top of the head (16) is fixedly connected to a second limiting rod (18), one end of the connecting head (16) is connected to a clamping plate (19) via a bearing, one end of the first detection frame (9) is fixedly connected to a flip block (20), one end of the flip block (20) is provided with a rotation groove (21), one end of the flip block (20) is provided with a rotating plate (22), the interior of the rotating groove (21) is connected to a movable rotating rod (23) via a bearing, one end of the movable rotating rod (23) is connected to a worm gear (24) via a bearing, the interior of the rotating groove (21) is connected to a worm gear (25) via a bearing, one end of the flip block (20) is provided with a first motor (26), one side of the rotating plate (22) is provided with an angle rotating ring (27), one end of the flip block (20) is provided with an angle detection sensor (28), and the interior of the flip block (20) is provided with a locking mechanism for locking the movable rotating rod (23) and the rotating plate (22); The locking mechanism comprises a movable groove (45), a locking groove (46), an outer sleeve (47), an inner rotating rod (48), a torsion spring (49), a locking plate (50), an inclined groove (51), a push-pull electromagnet (52) and an inclined block (53). The movable groove (45) is provided inside the rotating plate (22), the locking groove (46) is provided in the middle of the movable rotating rod (23), the inner wall of the movable groove (45) is connected to the outer sleeve (47) through a bearing, the inner wall of the outer sleeve (47) is provided with an inner rotating rod (48), the outer Torsion springs (49) are provided at both ends of the sleeve (47), two sets of lock plates (50) are provided inside the lock groove (46), and an inclined groove (51) is provided in the middle and upper parts of the lock plates (50). A push-pull electromagnet (52) is provided at one end of the rotating plate (22), and an inclined block (53) is fixedly connected to the output end of the push-pull electromagnet (52). The inclined groove (51) is in the shape of a relative inclined surface, and one end of the inclined block (53) is in the shape of an inclined surface corresponding to the inclined groove (51). The bottom end of the lock plate (50) is in the shape of an arc.

2. The automatic flip casting surface defect detection device according to claim 1, characterized in that: A fifth electric push rod (35) is provided at one end of the bracket (2), an output end of the fifth electric push rod (35) is fixedly connected to a second detection frame (29), and the second detection frame (29) is located on one side of the first detection frame (9), a bottom end of the second detection frame (29) is symmetrically slidably connected to a slider (31), one end of the second detection frame (29) is provided with a second motor (32), an output end of the second motor (32) is fixedly connected to a reverse threaded rod (33), and one end of the reverse threaded rod (33) is connected to the inner wall of the second detection frame (29) through a bearing, and the slider (31) is symmetrically slidably connected to the bottom end of the second detection frame (29), and a second motor (32) is provided at one end of the second detection frame (29), and a reverse threaded rod (33) is fixedly connected to the inner wall of the second detection frame (29) through a bearing. The slider (31) is connected to the threaded rod (33) by a thread, the bottom end of each slider (31) is fixedly connected to a movable frame (30), and both ends of the movable frame (30) are located at both ends of the casting body (5), and both ends of the movable frame (30) are provided with a second camera head (34), and the size detection sensor (12) is respectively located on both sides of the second detection frame (29) and the first detection frame (9), and the movable frame (30) is L-shaped. The control ends of the conveyor belt (4), the second motor (32), the second camera head (34) and the fifth electric push rod (35) are all electrically connected to an external power supply through a control panel (3).

3. The automatic flip casting surface defect detection device according to claim 1, characterized in that: A movable plate (6) is provided at the top of the bracket (2), and both ends of the movable plate (6) are slidably connected to guide rods (7). A first electric push rod (8) is provided at the top of the movable plate (6), and the output end of the first electric push rod (8) is fixedly connected to the bracket (2). A second electric push rod (10) is provided in the middle of the movable plate (6), and the output end of the second electric push rod (10) is fixedly connected to the first detection frame (9). The control ends of the first electric push rod (8) and the second electric push rod (10) are both electrically connected to an external power supply through a control panel (3).

4. The automatic flip casting surface defect detection device according to claim 1, characterized in that: The output end of the third electric push rod (14) is fixedly connected to the top of the adjustment block (13), the first limit rod (15) is slidably connected to one end of the first detection frame (9), the output end of the fourth electric push rod (17) is fixedly connected to the connector (16), one end of the second limit rod (18) is slidably connected to the adjustment block (13), one end of the movable rotating rod (23) is fixedly connected to the rotating plate (22), one end of the worm wheel (24) is connected to the inner wall of the rotating groove (21) through a bearing, one end of the worm (25) extends to the outside of the flip block (20), the output end of the first motor (26) is fixedly connected to one end of the worm (25), and the angle detection sensor (28) corresponds to the angle rotating ring (27).

5. The automatic flip casting surface defect detection device according to claim 4, characterized in that: Both ends of the inner rotating rod (48) are connected to the movable groove (45) by bearings, both ends of the torsion spring (49) are fixedly connected to the outer sleeve (47) and the inner rotating rod (48), and the top ends of the locking plates (50) are fixedly connected to the outer sleeve (47) and the inner rotating rod (48), respectively. The upper and middle parts of one set of the locking plates (50) are slidably connected to the middle part of the outer sleeve (47), and the inclined block (53) is located between the two sets of inclined grooves (51).

6. The automatic flip casting surface defect detection device according to claim 5, characterized in that: The control ends of the first motor (26), the angle rotating ring (27), the angle detection sensor (28) and the push-pull electromagnet (52) are all electrically connected to an external power supply through the control panel (3).

7. The automatic flip casting surface defect detection device according to claim 1, characterized in that: The secondary detection mechanism includes an ultrasonic processor (36), a moving platform (37), a third limiting rod (38), a first threaded rod (39), a third motor (40), an extension plate (41), a second threaded rod (42), a fourth motor (43) and a probe (44), wherein an ultrasonic processor (36) is provided at one end of the workbench (1), a moving platform (37) is provided at one end of the ultrasonic processor (36), a third limiting rod (38) is slidably connected to the bottom end of the moving platform (37), and both ends of the third limiting rod (38) are fixedly connected to the workbench (1), a third motor (40) is provided at one end of the workbench (1), and a first threaded rod (39) is provided at one end of the workbench (1). 0), and the output end of the third motor (40) is fixedly connected to one end of the first threaded rod (39), one end of the first threaded rod (39) is connected to the workbench (1) through a bearing, one side of the mobile platform (37) is slidably connected to an extension plate (41), one end of the extension plate (41) is connected to the second threaded rod (42) through a thread, and the top of the second threaded rod (42) is connected to the mobile platform (37) through a bearing, the bottom end of the mobile platform (37) is provided with a fourth motor (43), and the output end of the fourth motor (43) is fixedly connected to the second threaded rod (42), one end of the extension plate (41) is provided with a probe (44), and the third limiting rod (38) is located at the bottom end of the first threaded rod (39).

8. The automatic flip casting surface defect detection device according to claim 7, characterized in that: The output end of the probe (44) is electrically connected to the ultrasonic processor (36), and the control ends of the ultrasonic processor (36), the third motor (40) and the fourth motor (43) are all electrically connected to an external power supply through the control panel (3).

9. A method for operating the automatic flip casting surface defect detection device according to any one of claims 1 to 8, characterized in that: Step 1: Take a photo once, convey the casting body (5) through the conveyor belt (4), when the casting body (5) moves to the two sets of size detection sensors (12) in front, the casting body (5) is positioned by the size detection sensors (12), and at this time the conveyor belt (4) is closed, and the output end of the fifth electric push rod (35) drives the second detection frame (29) to move downward until the second photo heads (34) at both ends of the movable frame (30) are at both ends of the casting body (5), and after the size of the casting body (5) is detected by the size detection sensor (12), the second motor (32) drives the slider (31) and the movable frame (30) to move through the reverse threaded rod (33), so that the second photo heads (34) are at appropriate positions on both sides of the casting body (5), thereby completing the automatic adjustment work, and at this time, the casting body (5) is photographed, sampled and uploaded by the two sets of second photo heads (34); Step 2: Take a second photo. After one end of the casting body (5) is fitted with the rotating plate (22), the third electric push rod (14) controls the adjustment block (13) and the clamping plate (19) to move downward, and the clamping plate (19) and the rotating plate (22) are clamped by the fourth electric push rod (17). The first detection frame (9) and the casting body (5) are moved upward by the second electric push rod (10). The casting body (5) is photographed, sampled and uploaded by the first photographing head (11). The first motor (26) rotates the worm gear (24), the movable rotating rod (23) and the rotating plate (22) through the worm (25), driving the casting body (5) and the angle rotating ring (27) to rotate. The angle detection sensor (28) detects and controls the angle of rotation of the angle rotating ring (27), the rotating plate (22) and the casting body (5), until one cycle is taken. Step 3: Unlocking, the casting body (5) is photographed twice, and the casting body (5) needs to be unlocked before rotating. The push-pull electromagnet (52) drives the inclined block (53) to move backward, so that the inclined surface of the inclined block (53) no longer conflicts with the inclined groove (51). At this time, the two sets of lock plates (50) are attached to each other under the action of the torsion spring (49), and the unlocking is completed at this time; Step 4: Transferring, the second electric push rod (10), the first detection frame (9) and the casting body (5) are moved to the top of another set of conveyor belts (4) through the first electric push rod (8) and the movable plate (6), and then the first detection frame (9) and the second electric push rod (10) are reset again; Step 5: Second random inspection, the height of the extension plate (41) and the probe (44) is controlled by the fourth motor (43) and the second threaded rod (42), so that the probe (44) is at the top of the casting body (5), and the movable platform (37), the extension plate (41) and the probe (44) are moved by the third motor (40) and the first threaded rod (39), so that the casting body (5) is scanned by the probe (44), and the ultrasonic processor (36) analyzes the interior of the casting body (5).

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