Defect detection device and detection method for speed reducer shell production

Abstract

The invention discloses a defect detection device and method for speed reducer shell production, and relates to the technical field of speed reducer detection.The defect detection device comprises a rack, a detection platform is fixedly connected to the upper portion of the rack, a conveying mechanism is installed on one side of the upper portion of the detection platform, and a clamping mechanism is installed in the center of the detection platform; a spraying mechanism is mounted on the other side of the upper portion of the detection platform, supporting plates are fixedly connected to the two sides of the rack, a mounting plate is fixedly connected to the tops of the supporting plates, a drying machine is mounted at the bottom of the mounting plate, two spraying guns are symmetrically mounted on the two sides of the drying machine, a first camera is mounted on the lower surface of the mounting plate, and a second camera is mounted on the lower surface of the mounting plate. The speed reducer shell defect detection device has higher detection precision, can synchronously detect the strength of the speed reducer shell while detecting the defects of the speed reducer shell, and improves the detection device.

Description

Technical Field

[0001] The present invention relates to the technical field of reducer detection, and in particular to a defect detection device and a detection method for reducer housing production. Background Art

[0002] Reducers are widely used in industrial production. As an important component, their casing plays a key role in the performance and reliability of the reducer. In the production process of the reducer casing, various defects such as cracks, sand holes, dimensional deviations, etc. will inevitably appear. If these defects are not detected in time, they will affect the overall quality of the reducer and even cause equipment failure and cause safety accidents.

[0003] An existing penetration testing method is to spray a penetrant containing a fluorescent dye or a coloring dye onto the surface of a workpiece, clean it after a certain period of time, and then apply a developer to attract the penetrant remaining in the defect to find surface defects. However, this method is mainly based on manual visual inspection and traditional inspection equipment. Manual visual inspection is inefficient and highly subjective, and is prone to missed inspections and false inspections. Long working hours can cause fatigue to inspectors, further reducing inspection accuracy and production efficiency.

[0004] Therefore, it is necessary to design a defect detection device for reducer housing production. Summary of the invention

[0005] The object of the present invention is to provide a defect detection device and a defect detection method for the production of a reducer housing, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a defect detection device and detection method for reducer housing production, comprising a frame, a detection platform is fixedly connected above the frame, a conveying mechanism is installed on one side above the detection platform, a clamping mechanism is installed in the center of the detection platform, a spray mechanism is installed on the other side above the detection platform, support plates are fixedly connected on both sides of the frame, a mounting plate is fixedly connected on the top of the support plate, a dryer is installed at the bottom of the mounting plate, two spray guns are symmetrically installed on both sides of the dryer, and a camera 1 is installed on the lower surface of the mounting plate; The clamping mechanism comprises a rotating rod, both ends of which are fixedly connected to connecting shafts, two supporting rods are welded on the rod body of the rotating rod, one end of the supporting rod is fixedly connected to a mounting block, and the other end of the supporting rod is fixedly connected to a positioning block, and an electric telescopic rod is arranged on the opposite side of the mounting block and the positioning block, and the electric telescopic rod close to the positioning block is connected to its bearing, and the output ends of the two electric telescopic rods are fixedly connected to clamping members; A flip mechanism is installed inside the mounting block, and the flip mechanism includes a positioning frame, which is installed inside the mounting block, one end of the positioning frame is connected to a driving disk with a bearing, one side of the driving disk is provided with a motor 1, the middle part of the driving disk is fixedly connected to the output shaft of the motor 1 through a rod, a lever is welded to the other side of the driving disk, the other end of the positioning frame is rotatably connected to a groove wheel, and the middle part of the groove wheel away from the positioning frame is fixedly connected to the electric telescopic rod through a rod.

[0007] According to the above technical solution, the conveying mechanism includes a support frame, which is fixedly connected to both sides of the frame, a conveyor belt is fixedly connected to the top of the support frame, a pressure sensor is installed inside the center of the conveyor belt, the conveyor belt is connected to the remote control terminal signal, the side of the conveyor belt close to the display screen is the input end, and the other side of the conveyor belt is the output end.

[0008] According to the above technical solution, a mounting groove is opened on the upper surface of the detection platform, and fixed blocks are fixedly connected to both ends of the mounting groove. The connecting shaft is rotatably connected to the inner side of the fixed block, and one of the connecting shafts is fixedly connected to a rotating motor.

[0009] According to the above technical solution, the clamping member includes a base plate, a driving block is installed on the base plate, clamping plates are arranged on both sides of the base plate, the clamping plates are fixedly connected to the turntable through connecting rods, a distance sensor is installed inside the clamping plates, and a baffle is fixedly connected below the base plate, and the baffle is located in the center of the two clamping plates.

[0010] According to the above technical solution, a through hole is opened on one side of the frame.

[0011] According to the above technical solution, the spray mechanism includes a spray pool, which is installed on the side of the clamping mechanism away from the conveying mechanism, and a wastewater tank is arranged on the detection platform between the spray pool and the clamping mechanism. A connecting rod is fixedly connected to a higher side surface of the spray pool, and the other end of the connecting rod is fixedly connected to a fixed plate, and a spray head is installed on the lower surface of the fixed plate, and the fixed plate is connected to the spray head. A drainage hole is opened on one side of the spray pool, and a filter is installed in the drainage hole. A water pipe is fixedly connected in the drainage hole, and the other end of the water pipe is penetrated in the penetration hole, and the other end of the water pipe is fixedly connected to a water tank. A circulating pump is arranged on the higher side of the spray pool, and one end of the circulating pump is connected to the water tank through a pipeline, and the other end of the circulating pump is connected to the fixed plate through a pipeline.

[0012] According to the above technical solution, an imaging device is arranged on a side of the conveying mechanism away from the clamping mechanism, and a column is arranged on one side of the imaging device, and the column is fixedly connected to the upper surface of the detection platform.

[0013] According to the above technical solution, a display screen is fixedly connected to the column body of the column through a universal joint rod, a remote control terminal is integrated in the display screen, a second camera is also fixedly connected to the column body of the column, and a marking device is arranged on the other side of the imaging device.

[0014] According to the above technical solution, the conveyor belt, pressure sensor, rotating motor, electric telescopic rod, motor 1, driving block, distance sensor, and circulating pump are all connected to the remote control terminal signal.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: the present invention can achieve a sufficient and uniform spraying effect by providing a flipping mechanism, and can dynamically adjust the flipping frequency according to the specific situation of the reducer housing during the detection process, thereby effectively preventing the detection error caused by the change of the housing position and ensuring the detection accuracy; the spraying mechanism is provided to achieve the reuse of the permeate, which not only reduces the consumption of chemical substances, but also reduces wastewater discharge, which is beneficial to environmental protection; by providing a clamping piece based on distance sensor feedback, it is possible to monitor in real time whether the reducer housing slides on the splint, and automatically adjust the flipping frequency according to the sliding situation to avoid large sliding affecting the detection result, further improving the accuracy and reliability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the detection platform of the present invention; Figure 3 The present invention Figure 2 The enlarged schematic diagram of point A in the middle; Figure 4 It is a structural schematic diagram of the clamping mechanism of the present invention; Figure 5 The present invention Figure 4 The enlarged schematic diagram of point B in the middle; Figure 6 It is a structural schematic diagram of the turning mechanism of the present invention; Figure 7 It is a schematic diagram of the clamping mechanism of the present invention clamping the reduction housing; Figure 8 It is a structural schematic diagram of the spray mechanism of the present invention; Fig. 9 It is a schematic diagram of the present invention during detection; Fig.10It is a schematic diagram of the present invention during spraying; Fig.11 It is a schematic diagram of the present invention during drying; In the figure: 1, frame; 11, detection platform; 12, mounting slot; 13, fixing block; 14, wastewater tank; 15, perforation; 2, conveying mechanism; 21, support frame; 22, conveyor belt; 3, clamping mechanism; 31, rotating rod; 32, connecting shaft; 33, support rod; 34, mounting block; 35, positioning block; 36, electric telescopic rod; 37, clamping member; 371, base plate; 372, driving block; 373, clamping plate; 374, baffle; 4. Flipping mechanism; 41. Positioning frame; 42. Driving disk; 43. Lever; 44. Groove wheel; 5. Spraying mechanism; 51. Spraying pool; 52. Connecting rod; 53. Fixing plate; 54. Spraying head; 55. Drain hole; 56. Water pipe; 57. Circulating pump; 6. Support plate; 7. Mounting plate; 8. Dryer; 9. Camera 1; 10. Imaging device; 16. Column; 17. Display screen; 18. Camera 2; 19. Marking device. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1-11 The present invention provides a technical solution: a defect detection device for the production of a reducer housing, comprising a frame 1, a detection platform 11 is fixedly connected above the frame 1 for performing the main detection operation, a conveying mechanism 2 is installed on one side above the detection platform 11 for conveying the reducer housing to be detected, a clamping mechanism 3 is installed in the center of the detection platform 11 for holding and positioning the reducer housing, and a spraying mechanism 5 is installed on the other side above the detection platform 11 for spraying a penetrant; Support plates 6 are fixedly connected to both sides of the frame 1, and mounting plates 7 are fixedly connected to the tops of the two support plates 6, so as to surround and form a drying area. A dryer 8 is installed at the bottom of the mounting plate 7, which is used to heat and dry the reducer housing after spraying. Two spray guns are symmetrically installed on both sides of the dryer 8, and when the two spray guns spray, the liquid convergence point is located on the vertical center line of the dryer 8. One of the spray guns is externally connected to a developer input pipe for spraying developer to fully develop defects on the reducer housing, and the other spray gun is externally connected to a water pipe for spraying clean water to ensure that the residual penetrant on the surface is completely removed; A camera 9 is installed on the lower surface of the mounting plate 7 for preliminary detection of defects on the reducer housing and coverage of the reducer housing during spraying; An imaging device 10 is provided on one side of the conveying mechanism 2 away from the clamping mechanism 3, which is used for visually inspecting and locating the imaging defects on the reducer housing after drying. A column 16 is provided on one side of the imaging device 10, and the column 16 is fixedly connected to the upper surface of the detection platform 11. A display screen 17 is fixedly connected to the column body of the column 16 through a universal joint rod. A remote control terminal is integrated in the display screen 17 for adjusting the detection device. A camera 18 is also fixedly connected to the column body of the column 16 for monitoring the conveying position of the reducer housing and locating the position of the imaging defects. A marking device 19 is provided on the other side of the imaging device 10 to mark the located defects for facilitating subsequent operations.

[0019] Specifically, refer to Figure 8 The conveying mechanism 2 includes a support frame 21, which is fixedly connected to both sides of the frame 1. A conveyor belt 22 is fixedly connected to the top of the support frame 21. A pressure sensor is installed in the center of the conveyor belt 22 to detect the weight of the reducer housing. The conveyor belt 22 is connected to the remote control terminal signal, and the operation of the conveyor belt 22 will be started and stopped according to the actual detection situation. The side of the conveyor belt 22 close to the display screen 17 is the input end, and the other side is the output end; The reducer housing is manually placed vertically and centered on the conveyor belt 22. When the reducer housing enters the detection platform 11 from the input end, the camera 2 18 locates the position of the reducer housing. When it is conveyed to the optimal clamping position, the conveyor belt 22 stops and the clamping mechanism 3 clamps. The optimal clamping position is when the center of the reducer housing is located at the center of the conveyor belt 22. When the reducer housing completes the visual inspection, the conveyor belt 22 starts and conveys it to the marking device 19 and then stops to mark the defects. After the marking is completed, it continues to be conveyed.

[0020] refer to Figure 2-Figure 7 A mounting groove 12 is provided on the upper surface of the detection platform 11, and fixed blocks 13 are fixedly connected to both ends of the mounting groove 12. The clamping mechanism 3 includes a rotating rod 31, and connecting shafts 32 are fixedly connected to both ends of the rotating rod 31. The connecting shafts 32 are rotatably connected to the inner side of the fixed block 13, and one of the connecting shafts 32 is fixedly connected to a rotating motor, so that the rotation of the connecting shaft 32 is controlled by the rotating motor; Two support rods 33 are welded on the rod body of the rotating rod 31, and the end of one of the support rods 33 is fixedly connected to a mounting block 34, and the end of the other support rod 33 is fixedly connected to a positioning block 35. An electric telescopic rod 36 is provided on the opposite side of the mounting block 34 and the positioning block 35, and the electric telescopic rod 36 close to the positioning block 35 is connected to its bearing, and the output ends of the two electric telescopic rods 36 are fixedly connected to clamping members 37, which have the effect of clamping and positioning the reducer housing; refer to Figure 4 and Figure 5 , a flip mechanism 4 is installed inside the mounting block 34, and the flip mechanism 4 includes a positioning frame 41, the positioning frame 41 is installed inside the mounting block 34, one end of the positioning frame 41 is connected to a driving disk 42 by a bearing, a motor 1 is arranged on one side of the driving disk 42, and the middle part of the driving disk 42 is fixedly connected to the output shaft of the motor 1 through a rod, and a lever 43 is welded on the other side of the driving disk 42, and the other end of the positioning frame 41 is rotatably connected to a groove wheel 44, and the middle part of the groove wheel 44 away from the positioning frame 41 is fixedly connected to the electric telescopic rod 36 through a rod; after the motor 1 is started, the driving disk 42 rotates accordingly, so that the lever 43 rotates around its center, and the lever 43 is inserted into the groove on the groove wheel 44 in sequence during the rotation process, thereby toggling the groove wheel 44 to rotate intermittently, and then driving the clamping member 37 to rotate intermittently through the electric telescopic rod 36; Furthermore, the clamping member 37 includes a base plate 371, on which a driving block 372 is mounted. Figure 5 The output end of the driving block 372 is fixedly connected with a turntable, and six protrusions are arranged on the turntable. Clamping plates 373 are arranged on both sides of the base plate 371. The clamping plates 373 are fixedly connected with the turntable through connecting rods. The clamping force of the clamping plates 373 can be adjusted by driving the turntable to rotate through the driving block 372. A distance sensor is installed inside the clamping plates 373. Therefore, during the clamping process, the length parameter of the reducer housing can be fed back through the distance between the two clamping plates 373. The clamping force of the clamping plates 373 is regulated by the driving block 372, so as to clamp reducer housings of different sizes. A baffle 374 is fixedly connected to the bottom of the base plate 371, and the baffle 374 is located in the center of the two clamping plates 373. After the reducer housing enters the conveyor belt 22 and is located at the optimal clamping position through the camera 2 18, the conveyor belt 22 stops running, and the rotating motor drives the rotating rod 31 to flip, so that the clamping parts 37 are located on both sides of the reducer housing, and then drives the electric telescopic rod 36 to make the two clamping parts 37 approach continuously until the camera 2 18 observes that the reducer housing is located between the two clamping plates 373, and then the electric telescopic rod 36 stops extending, and the driving block 372 drives the clamping plates 373 to approach and clamp the reducer housing, thereby realizing the clamping positioning of the reducer housing.

[0021] refer to Figure 8 and Fig. 9 A through hole 15 is provided on one side of the frame 1, and the spray mechanism 5 includes a spray pool 51, which is installed on the side of the clamping mechanism 3 away from the conveying mechanism 2. A waste water tank 14 is provided on the detection platform 11 between the spray pool 51 and the clamping mechanism 3, and the waste water tank 14 is located below the dryer 8 and is used to collect liquid dripping on the detection platform 11. The side of the spray pool 51 is trapezoidal, and a connecting rod 52 is fixedly connected to a higher side surface of the spray pool 51, and the other end of the connecting rod 52 is fixedly connected to a fixing plate 53, and a spray head 54 is installed on the lower surface of the fixing plate 53, and the fixing plate 53 is connected to the spray head 54. A drainage hole 55 is provided on one side of the spray pool 51. A filter is installed in the drainage hole 55. A water pipe 56 is fixedly connected to the drainage hole 55. The other end of the water pipe 56 is passed through the perforation 15 and fixedly connected to a water tank. The water tank contains permeate. A circulation pump 57 is provided on the higher side of the spray pool 51. One end of the circulation pump 57 is connected to the water tank through a pipeline, and the other end of the circulation pump 57 is connected to the fixed plate 53 through a pipeline, so that the permeate is sprayed out from the spray head 54, filtered and recovered through the drainage hole 55 and the water pipe 56, and then repeatedly sprayed through the circulation pump 57, so that the permeate is reused. refer to Fig.10 In the process of the reducer housing being transported to the bottom of the spray head 54 through the rotating rod 31, the flipping mechanism 4 continuously flips the reducer housing so that the surface of the reducer housing is exposed to the camera 9. The camera 9 makes a preliminary observation on the surface of the reducer housing. When a surface with suspected defects is observed, after the reducer housing falls under the spray head 54, the camera 9 marks the surface with defects and controls the flipping mechanism 4 to turn the defective surface toward the spray head 54, then stops flipping for a period of time and sprays, thereby improving the coverage effect of the penetrant at the defective part. After a period of time, the intermittent flipping is continued so that the other surfaces of the reducer housing can also be evenly covered with the penetrant. After the spraying is completed, the circulation pump 57 is turned off, the spraying of the spray head 54 is stopped, the turning mechanism 4 stops running, the permeate is kept in contact with the surface of the reducer housing for a period of time, so that the permeate fully penetrates into the defects, and then the rotating rod 31 is controlled to drive the reducer housing to move to the bottom of the dryer 8, refer to Fig.11, connect the clean water spray gun to spray the surface of the reducer housing, and at the same time, the flip mechanism 4 is continuously flipped, and the two electric telescopic rods 36 are extended and retracted at the same frequency, so as to realize the reciprocating displacement of the reducer housing, so that the surface of the reducer housing is rinsed, ensuring that the residual penetrant on the surface is completely removed; after a set period of cleaning, the clean water spray gun is connected to stop spraying, and the continuous flipping and reciprocating displacement are maintained, and the dryer 8 is turned on to fully heat and dry the surface of the reducer housing. After a set period of drying, the developer spray gun is turned on to spray the surface of the reducer housing sufficiently and evenly. After a set period of spraying, the rotating rod 31 is flipped, so that the reducer housing falls above the conveyor belt 22, with reference to Figure 8 , the imaging device 10 is used to detect whether there is any place where the reducer housing that is constantly flipped and moved back and forth has traces. When the imaging device 10 detects a place where traces are displayed, the flipping and displacement are stopped, and the imaging position is marked by the second camera 18, and then the reducer housing is controlled to move the mark distance to the side of the marking device 19 by two electric telescopic rods 36, so that the mark falls directly below the marking part of the marking device 19, thereby marking the defective part, which is convenient for the subsequent processing of the reducer housing; Among them, the conveyor belt 22, the pressure sensor, the rotating motor, the electric telescopic rod 36, the motor 1, the driving block 372, the distance sensor, and the circulating pump 57 are all connected to the remote control terminal signal.

[0022] The above-mentioned embodiment completes the penetration test of the reducer housing, which can effectively avoid the waste of penetration liquid, reduce the detection cost, be beneficial to environmental protection, reduce the pollution to the environment, and at the same time realize the continuity of penetration test, greatly improving the detection efficiency.

[0023] Embodiment 2: Based on the embodiment 1, after the reducer housing is clamped, the length h of the reducer housing is fed back through the distance sensor. Generally, the longer the length of the reducer housing is, the larger its volume is. The spraying time required for reducer housings of different volumes will also be different. Therefore, it is necessary to set the spraying time t of the permeate according to the volume of the reducer housing. Specifically, the standard length of the reducer housing is set to H: When h≤H, it means that the volume of the reducer housing is a standard or smaller volume. At this time, the rotating rod 31 is driven to rotate, and the reducer housing is sent under the spray head 54. The turning mechanism 4 continuously turns the reducer housing and sprays the permeate for a time of t, so that the reducer housing is evenly covered with the permeate. When h>H, it means that the volume of the reducer housing is larger than the standard volume. At this time, the rotating rod 31 is driven to rotate, and the reducer housing is sent under the spray head 54. The turning mechanism 4 continuously turns the reducer housing and sprays the permeate for 2t, so that the reducer housing can still be evenly covered with the permeate. Through the above-mentioned embodiment, the permeate spraying is performed for different time periods for reducer housings of different sizes, thereby ensuring that reducer housings of different volumes can be evenly and fully covered with the permeate.

[0024] Embodiment 3: In some cases, the strength of the reducer housing is too low. For this part of the reducer housing, defects may easily occur during the first use, resulting in a waste of resources and reducing the efficiency of the production line. In view of this situation, the reducer housing is compressed after clamping, and then its surface defects are observed. Specifically, based on the embodiment 2, the reducer housing is clamped and positioned by the clamping mechanism 3 and then flipped to the spray mechanism 5 for spraying. After the subsequent cleaning, drying and developing operations are completed, when the reducer housing enters the detection area of ​​the imaging device 10, the two electric telescopic rods 36 are extended synchronously, and the baffle 374 is in contact with the surface of the reducer housing. The electric telescopic rod 36 applies a force within the bearing range of the material to compress the reducer housing, thereby achieving the effect of detecting the strength of the reducer housing. After a period of time, the electric telescopic rod 36 stops extending, completing the strength detection operation. During this process, the camera 9 observes the condition of the reducer housing in real time. For the reducer housing with imaging defects on the surface, if the camera 9 observes that the reducer housing is deformed and the defects are enlarged after compression, it means that the reducer housing has low strength, is easy to be damaged, and is not suitable for use on the production line. At this time, it can be directly sent back to the conveyor belt 22 for transportation; if the camera 9 observes that the reducer housing is not deformed after compression, but the defects are further enlarged, it means that the imaging defects on the reducer housing are difficult to make up for. Even if there is no obvious deformation as a whole, it is easier to form new defects on these defects or expand the original defects. The strength of the reducer housing is low, and it can also be directly sent back to the conveyor belt 22 for transportation; if the camera 9 observes that the reducer housing is neither deformed nor has obvious changes in the imaging defects after compression, it means that the defects on the reducer housing can be compensated by welding repair and other operations so that it can also meet the use conditions. At this time, it can be transported to the detection area below the imaging device 10 for subsequent visual inspection and positioning marking; For the reducer housing without imaging defects on the surface, if the camera 9 observes deformation and defects on the reducer housing after compression, or deformation but no defects, it means that the strength of the reducer housing is low. Although no defects are exposed during the production process, its quality is poor and cannot meet the use conditions. At this time, it can be directly sent back to the conveyor belt 22 for transportation; If the camera 9 observes that the reducer housing has no deformation but has obvious defects after compression, it means that the strength of the reducer housing is qualified, but the surface quality is poor. At this time, it is sent back to the spray mechanism 5 for penetration testing again, and other possible inconspicuous defects are imaged and subsequently marked. Finally, it is transported by the conveyor belt 22, and the poor quality surface part is repaired by welding and other operations, and the surface treatment is performed to make up for the appearance quality. The above-mentioned embodiment realizes the strength detection of the reducer housing, so that the reducer housing with insufficient strength can be identified during defect detection, and the existence of tiny defects on the reducer housing and their expansion tendency can be effectively detected, which greatly improves the optimization of the production line process.

[0025] Embodiment 4: When the reducer housing completes spraying and enters the bottom of the dryer 8 for development, the frequency of the shifting of the groove wheel 44 in the flip mechanism 4 is set to t seconds / time under the general state. In order to prevent excessive liquid from splashing due to centrifugal force when the spray gun is spraying, it is necessary to reduce the shifting frequency of the groove wheel 44 to t / 2 seconds / time; at the same time, a small amount of liquid splashed by centrifugal force will adhere to the nozzle of the spray gun, causing pollution. Therefore, when the reducer housing is sprayed with clean water and developer, the rotating rod 31 is rotated out of the bottom of the dryer 8, so that the spray gun sprays clean water and developer for a period of time, thereby reducing the impact of liquid mixing on the detection accuracy of the reducer housing; Further, based on the third embodiment, when the reducer housing is subjected to strength testing, the two clamping members 37 move toward each other to compress the reducer housing, and after being sprayed with the penetrant, clean water, and developer, the reducer housing may slide on the clamping plate 373. When the reducer housing on the clamping plate 373 on one side slides, the distance sensor inside the clamping plate 373 on that side will be sensed and feedback will be given of the change in distance. At this time, the flipping frequency of the flipping mechanism 4 needs to be reduced to prevent the large-scale sliding of the reducer housing from affecting the detection. If the distance sensor on the clamping plate 373 on either side senses a distance change, the frequency of the sheave 44 is reduced to t / 2 seconds / time; If the distance sensors on the two side clamps 373 sense the distance change, the frequency of the groove wheel 44 is reduced to t / 4 seconds / time; If no distance sensor on the clamping plate 373 senses the distance change, there is no need to change the flipping frequency, and the detection can be completed with the highest efficiency; Through the above embodiment, the regulation of the flipping frequency of the flipping mechanism 4 can achieve the effect of reducing the detection environment pollution, while optimizing the efficiency, effectively preventing the detection error caused by the sliding of the reducer housing, thereby improving the accuracy and reliability of the overall detection.

[0026] Embodiment 5: A defect detection device for the production of a reducer housing, wherein the detection method steps are as follows: Step 1: Loading and conveying, manually placing the reducer housing at the input end of the conveyor belt 22, and the conveyor belt 22 is running. When the camera 2 18 locates the reducer housing at the best clamping position, the conveyor belt 22 stops; Step 2: Clamping and positioning, the rotating motor drives the rotating rod 31 to flip, so that the clamping parts 37 are located on both sides of the reducer housing, and the electric telescopic rod 36 drives the two clamping parts 37 to move closer. After the camera 18 observes that the housing is located between the clamping plates 373, the electric telescopic rod 36 stops, and the driving block 372 drives the clamping plates 373 to clamp the housing. At the same time, the distance sensor feeds back the length of the housing. Step 3: Preliminary inspection and spraying. During the process of the rotating rod 31 conveying the shell to the bottom of the spray head 54, the flipping mechanism 4 flips the shell, and the camera 9 makes a preliminary observation on the surface of the shell. If a suspected defect is found, the defective surface is marked and the flipping mechanism 4 is controlled to make the defective surface face the spray head 54 for spraying; According to the shell length fed back by the distance sensor, if the length is less than or equal to the standard length, spray for t time; if the length is greater than the standard length, spray for 2t time to ensure that the shell is evenly covered with the penetrant; After spraying is completed, keep the penetrant in contact with the shell for a period of time to allow the penetrant to fully penetrate the defects; Step 4: Cleaning and drying, the rotating rod 31 drives the housing to move to the bottom of the dryer 8, and the clean water spray gun is turned on to spray clean water. At the same time, the flip mechanism 4 flips and the electric telescopic rod 36 controls the housing to move back and forth to wash away the residual permeate. After washing, stop spraying water, continue flipping and displacement, and turn on the dryer 8 for drying; Step 5: Development and marking. After drying, the developer spray gun is turned on to spray the developer. The rotating rod 31 is turned over to make the shell fall on the conveyor belt 22. The imaging device 10 detects whether there is a display mark. If there is, the turning and displacement are stopped. The camera 18 marks the imaging position. The electric telescopic rod 36 controls the shell to move the marking distance to the marking device 19. The marking device 19 marks the defect. Step 6: Strength detection. After the imaging operation, when the housing enters the detection area of ​​the imaging device 10, the electric telescopic rod 36 is extended, and the baffle 374 contacts the surface of the housing to perform a strength detection, and the camera 9 observes in real time; If the image is defective and the deformation or defect expands after compression, it means that the strength of the reducer housing is insufficient and it is directly sent back to the conveyor belt 22 for transportation; If there is no obvious deformation but the imaging defect is enlarged, it means that the surface quality of the reducer housing is poor and it is directly sent back to the conveyor belt 22 for transportation; If there is no obvious deformation and the imaging defect has not changed, the defect can be repaired by welding or other operations, and then transported to the inspection area below the imaging device 10 for subsequent visual inspection and positioning marking; If there are no imaging defects but deformation and defects appear after compression, it means that the strength of the reducer housing is low and it is directly sent back to the conveyor belt 22 for transportation; If there are no imaging defects, no obvious deformation but obvious defects, the reducer housing has qualified strength, but the surface quality is poor, it is sent back to the spray mechanism 5 for penetration testing again, imaging and marking other possible non-obvious defects, and transported through the conveyor belt 22, and welding repair and other measures are taken to improve the appearance quality; Step 7: Adjust the flipping frequency. According to the actual situation, in order to reduce the splashing and pollution of liquid, when the reducer housing is sprayed and enters the bottom of the dryer 8 for imaging, the frequency of the groove wheel 44 in the flipping mechanism 4 is reduced from t seconds / time to t / 2 seconds / time to slow down the rotation speed and prevent excessive liquid from splashing due to centrifugal force. When spraying water and developer, the rotating rod 31 is moved out from under the dryer 8 to ensure that the spray gun can spray at a proper angle to reduce contamination caused by liquid mixing; When the strength of the reducer housing is tested, the flipping frequency of the flipping mechanism 4 is adjusted according to the distance change fed back by the distance sensor inside the clamp 37; If one side of the clamping plate 373 senses sliding, the frequency of the groove wheel 44 is reduced to t / 2 seconds / time; If both side plates 373 sense sliding, it is further reduced to t / 4 seconds / time; The frequency does not change when there is no slip, maintaining the highest efficiency; Step 8: Repeat steps 1 to 7 until all reducer housings have been inspected.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A defect detection device for reducing gear housing production, comprising a frame (1), characterized in that: A detection platform (11) is fixedly connected to the top of the frame (1), a conveying mechanism (2) is installed on one side of the top of the detection platform (11), a clamping mechanism (3) is installed in the center of the detection platform (11), a spray mechanism (5) is installed on the other side of the top of the detection platform (11), support plates (6) are fixedly connected to both sides of the frame (1), a mounting plate (7) is fixedly connected to the top of the support plate (6), a dryer (8) is installed at the bottom of the mounting plate (7), two spray guns are symmetrically installed on both sides of the dryer (8), and a camera 1 (9) is installed on the lower surface of the mounting plate (7); The clamping mechanism (3) comprises a rotating rod (31), both ends of the rotating rod (31) are fixedly connected to a connecting shaft (32), two support rods (33) are welded to the rod body of the rotating rod (31), one end of the support rod (33) is fixedly connected to a mounting block (34), and the other end of the support rod (33) is fixedly connected to a positioning block (35), an electric telescopic rod (36) is provided on a side opposite to the mounting block (34) and the positioning block (35), the electric telescopic rod (36) close to the positioning block (35) is connected to its bearing, and a clamping member (37) is fixedly connected to the output ends of the two electric telescopic rods (36), A turning mechanism (4) is installed inside the mounting block (34); The spray mechanism (5) comprises a spray pool (51), the spray pool (51) being mounted on a side of the clamping mechanism (3) away from the conveying mechanism (2), a waste water tank (14) being arranged on the detection platform (11) between the spray pool (51) and the clamping mechanism (3), a connecting rod (52) being fixedly connected to a higher side surface of the spray pool (51), a fixing plate (53) being fixedly connected to the other end of the connecting rod (52), and a spraying device (14) being mounted on the lower surface of the fixing plate (53). A shower head (54), the fixing plate (53) being in communication with the shower head (54), a drainage hole (55) being provided on one side of the shower pool (51), a filter being installed in the drainage hole (55), a water delivery pipe (56) being fixedly connected in the drainage hole (55), a circulation pump (57) being provided on the higher side of the shower pool (51), one end of the circulation pump (57) being connected to a water tank via a pipeline, and the other end of the circulation pump (57) being connected to the fixing plate (53) via a pipeline; A through hole (15) is provided on one side of the frame (1), the other end of the water pipe (56) is passed through the through hole (15), and the end of the water pipe (56) is fixedly connected to a water tank.

2. A defect detection device for reducer housing production according to claim 1, characterized in that: The conveying mechanism (2) comprises a support frame (21), the support frame (21) is fixedly connected to both sides of the frame (1), a conveyor belt (22) is fixedly connected to the top of the support frame (21), a pressure sensor is installed in the center of the conveyor belt (22), the conveyor belt (22) is connected to the remote control terminal signal, the side of the conveyor belt (22) close to the display screen (17) is the input end, and the other side of the conveyor belt (22) is the output end.

3. A defect detection device for reducer housing production according to claim 2, characterized in that: The upper surface of the detection platform (11) is provided with a mounting groove (12), both ends of the mounting groove (12) are fixedly connected to fixing blocks (13), the connecting shafts (32) are rotatably connected to the inner side of the fixing blocks (13), and one of the connecting shafts (32) is fixedly connected to a rotating motor.

4. A defect detection device for reducer housing production according to claim 3, characterized in that: The clamping member (37) comprises a base plate (371), a driving block (372) is mounted on the base plate (371), clamping plates (373) are arranged on both sides of the base plate (371), the clamping plates (373) are fixedly connected to the turntable via a connecting rod, a distance sensor is mounted inside the clamping plates (373), and a baffle (374) is fixedly connected below the base plate (371), and the baffle (374) is located in the center of the two clamping plates (373).

5. A defect detection device for reducer housing production according to claim 4, characterized in that: The flip mechanism (4) comprises a positioning frame (41), the positioning frame (41) being mounted inside the mounting block (34), one end of the positioning frame (41) being connected to a driving disk (42) by a bearing, one side of the driving disk (42) being provided with a motor 1, the middle portion of the driving disk (42) being fixedly connected to an output shaft of the motor 1 via a rod, the other side of the driving disk (42) being welded with a lever (43), the other end of the positioning frame (41) being rotatably connected to a groove wheel (44), the middle portion of a side of the groove wheel (44) away from the positioning frame (41) being fixedly connected to an electric telescopic rod (36) via a rod.

6. A defect detection device for reducer housing production according to claim 5, characterized in that: An imaging device (10) is provided on a side of the conveying mechanism (2) away from the clamping mechanism (3), and a column (16) is provided on one side of the imaging device (10), wherein the column (16) is fixedly connected to the upper surface of the detection platform (11).

7. A defect detection device for reducer housing production according to claim 6, characterized in that: A display screen (17) is fixedly connected to the column body of the column (16) via a universal joint rod, a remote control terminal is integrated in the display screen (17), a second camera (18) is also fixedly connected to the column body of the column (16), and a marking device (19) is provided on the other side of the imaging device (10).

8. A defect detection device for reducer housing production according to claim 7, characterized in that: The conveyor belt (22), pressure sensor, rotating motor, electric telescopic rod (36), motor 1, driving block (372), distance sensor, and circulating pump (57) are all connected to the remote control terminal signal.

9. A detection method for a defect detection device for a reducer housing production, applicable to the defect detection device for a reducer housing production according to claim 8, characterized in that: The detection method steps are as follows: Step 1: loading and conveying, manually placing the reducer housing at the input end of the conveyor belt (22), and the conveyor belt (22) running. When the camera 2 (18) locates the reducer housing at the optimal clamping position, the conveyor belt (22) stops; Step 2: Clamping and positioning, the rotating motor drives the rotating rod (31) to flip so that the clamping parts (37) are located on both sides of the reducer housing, and the electric telescopic rod (36) drives the two clamping parts (37) to move closer. After the second camera (18) observes that the housing is located between the clamping plates (373), the electric telescopic rod (36) stops, and the driving block (372) drives the clamping plates (373) to clamp the housing. At the same time, the distance sensor feeds back the length of the housing. Step 3: Preliminary inspection and spraying. During the process of the rotating rod (31) conveying the shell to the bottom of the spray head (54), the flipping mechanism (4) flips the shell, and the camera 1 (9) makes a preliminary observation of the surface of the shell. If a suspected defect is found, the defective surface is marked and the flipping mechanism (4) is controlled to make the defective surface face the spray head (54) for spraying. According to the shell length fed back by the distance sensor, if the length is less than or equal to the standard length, spray for t time; if the length is greater than the standard length, spray for 2t; Step 4: Cleaning and drying, the rotating rod (31) drives the housing to move to the bottom of the drying machine (8), and the clean water spray gun is turned on to spray clean water. At the same time, the turning mechanism (4) turns over and the electric telescopic rod (36) controls the housing to move back and forth to wash away the residual penetrant. After washing, the water spraying is stopped, and the turning and displacement are continued, and the drying machine (8) is turned on to dry; Step 5: imaging and marking. After drying, the developer spray gun is connected to spray the developer. The rotating rod (31) is turned over to make the shell fall on the conveyor belt (22). The imaging device (10) detects whether there is a display mark. If there is, the turning and displacement are stopped. The second camera (18) marks the imaging position. The electric telescopic rod (36) controls the shell to move toward the marking device (19) to the marking distance. The marking device (19) marks the defect. Step 6: Strength detection. After the imaging operation, when the housing enters the detection area of ​​the imaging device (10), the electric telescopic rod (36) is extended, and the baffle (374) contacts the surface of the housing to perform a strength detection, and the camera 1 (9) observes in real time; If the imaging defect is present and the deformation or defect expands after compression, it indicates that the strength of the reducer housing is insufficient and the reducer housing is directly sent back to the conveyor belt (22) for transportation; If there is no obvious deformation but the imaging defect is enlarged, it means that the surface quality of the reducer housing is poor and it is directly sent back to the conveyor belt (22) for transportation; If there is no obvious deformation and the imaging defect has not changed, the defect can be repaired by welding or other operations, and then transported to the inspection area below the imaging device (10) for subsequent visual inspection and positioning marking; If there are no imaging defects but deformation and defects appear after compression, it means that the strength of the reducer housing is low and it is directly sent back to the conveyor belt (22) for transportation; If there are no imaging defects, no obvious deformation but obvious defects, the reducer housing has qualified strength, but the surface quality is poor, and it is sent back to the spray mechanism (5) for another penetration test, and other possible non-obvious defects are imaged and marked, and it is transported through the conveyor belt (22), and welding repair and other measures are taken to improve the appearance quality; Step 7: Adjust the frequency of the flipping, according to the actual situation to reduce liquid splashing and pollution, when the reducer housing completes the spraying and enters the bottom of the dryer (8) for imaging, the frequency of the groove wheel (44) in the flipping mechanism (4) is reduced from t seconds / time to t / 2 seconds / time to slow down the rotation speed, so as to prevent excessive liquid from splashing due to centrifugal force; When spraying clean water and developer, the rotating rod (31) is moved out from under the dryer (8) to ensure that the spray gun can spray at a proper angle to reduce contamination caused by liquid mixing; When the strength test is performed on the reducer housing, the flipping frequency of the flipping mechanism (4) is adjusted according to the distance change fed back by the distance sensor inside the clamping member (37); If one side of the clamping plate (373) senses sliding, the frequency of the groove wheel (44) is reduced to t / 2 seconds / time; If both side plates (373) sense sliding, it is further reduced to t / 4 seconds / time; The frequency does not change when there is no slip, maintaining the highest efficiency; Step 8: Repeat steps 1 to 7 until all reducer housings have been inspected.

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