An ultrasonic detection auxiliary device for a formed gear shaft

Abstract

The present invention relates to the technical field of gear shaft detection, and particularly to an ultrasonic detection auxiliary device after the formation of a gear shaft; it includes a box body and a detection mechanism installed thereon; the detection mechanism includes a three-axis moving table and an ultrasonic flaw detector installed thereon, and a positioning mechanism is also provided on the box body; through non-contact transmission of magnetic gears, the present invention solves the problem of driving slip caused by coupling agent lubrication of the gear shaft during the detection stage, and places the detection and dehydration in different areas of the same device, avoiding the situation in the traditional method where the workpiece needs to be transferred to an independent device. The overall process is continuous, reducing manual intervention and external transportation, shortening the cycle of gear shaft detection and drying, and shortening the time for secondary positioning during the drying of the gear shaft, thereby improving the detection efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of gear shaft detection, and particularly relates to an ultrasonic detection auxiliary device for a gear shaft after forming. Background Art

[0002] As a core component of a mechanical transmission system, gear shafts are widely used in fields such as automobiles, aviation, ships, and industrial equipment. Their internal quality directly determines the transmission efficiency, structural strength, and service life. During the forming process of gear shafts, internal defects such as cracks, pores, and inclusions are likely to occur due to factors such as material properties and processing techniques. Therefore, non-destructive testing of gear shafts is a key link to ensure their reliability. Gear shaft detection mainly uses water immersion ultrasonic detection technology. The specific detection method is to place the gear shaft on two symmetrically arranged metal rollers, and then the motor drives the metal rollers to rotate. Power is transmitted through the frictional contact between the outer ring wall of the metal roller and the workpiece surface, causing the gear shaft to rotate passively. After that, the ultrasonic flaw detector moves along the axial direction of the gear shaft to achieve a comprehensive scan of the rotating gear shaft.

[0003] Currently, the following problems exist in the gear shaft detection and processing process: First, after the detected gear shaft is taken out of the coupling agent, it needs to be transferred to an independent drying device for secondary treatment. The transfer process not only causes environmental pollution in the working environment due to the dripping of residual liquid droplets on the surface of the gear shaft during the transfer path, but also additionally increases the time for transfer and gear shaft positioning, resulting in a longer overall detection process time for the gear shaft. Second, during the ultrasonic detection of the gear shaft, since the gear shaft needs to be completely immersed in the coupling agent during detection to ensure effective transmission of ultrasonic waves, the coupling agent forms a lubricating layer at the contact surface between the driving roller and the gear shaft, resulting in insufficient friction between the two. When the driving roller drives the gear shaft to rotate, slipping is likely to occur, resulting in uneven circumferential rotation speed of the gear shaft. The spiral scan path of the ultrasonic flaw detector cannot be accurately synchronized with the actual rotation angle of the gear shaft, affecting the accuracy of defect detection.

[0004] Therefore, the process interruption and secondary pollution caused by the separation of the detection and dehydration links after ultrasonic detection of gear shafts, as well as the driving slippage and the decrease in synchronization accuracy caused by the surface water film lubrication during the high-speed rotation of gear shafts, are technical problems that need to be solved by those skilled in the art. Summary of the Invention

[0005] In view of the above problems, the embodiments of the present application provide an ultrasonic detection auxiliary device for a gear shaft after forming to solve the above-mentioned technical problems.

[0006] To achieve the above object, the embodiments of the present application provide the following technical solutions: The embodiments of the present application provide an ultrasonic detection auxiliary device for a gear shaft after forming, including a box body and a detection mechanism installed thereon; the detection mechanism includes a three-axis moving platform and an ultrasonic flaw detector installed thereon, and a positioning mechanism is also provided on the box body.

[0007] The box body is divided into a front detection area and a rear dehydration area by a partition.

[0008] The positioning mechanism includes two front-to-back symmetrical driving rollers rotatably installed in the detection area, two left-right symmetrical support plates fixedly installed on the top of the box body, a supporting plate slidably installed between the two support plates, two left-right symmetrical bearing plates slidably installed at the front end of the supporting plate, and thimbles rotatably installed on the bearing plates, two left-right symmetrical shaft columns rotatably installed in the dehydration area, and the thimbles, shaft columns and a driving roller are all driven by magnetic gears; a shielding member is provided in the dehydration area.

[0009] The two driving rollers and the ejector pin cooperate to provide a stable power source for the rotation of the gear shaft. After the ultrasonic detection is completed, the driving part drives the gear shaft to move to the dehydration area through the support plate. At the same time, the shielding part is linked to cover the gear shaft to prevent the liquid from splashing out of the box during the centrifugal dehydration of the gear shaft. The shaft column then drives the ejector pin to rotate at high speed through the magnetic gear, and drives the gear shaft to centrifugal dehydration.

[0010] As a preferred solution, guide grooves are provided on the opposite surfaces of the two support plates to cooperate with the guide columns installed at the left and right ends of the support plates. The guide grooves are composed of a horizontal section in the middle and an inclined section connected to the front and rear sections, which is inclined from top to bottom away from the horizontal section. A driving part is provided on the support plate to drive the support plate to move along the guide groove.

[0011] As a preferred solution, the driving part includes a slider, and the opposite surfaces of the two support plates are slidably installed with sliders located above the guide groove. The upper end of the support plate is fixedly installed with a limit rod corresponding to the slider one by one, and the upper end of the limit rod slides through the corresponding slider, and the front and rear ends of the two support plates are jointly fixedly installed with a fixed plate.

[0012] As a preferred solution, the fixed plate is provided with a push-pull member for driving the slider to move forward and backward, the push-pull member includes a connecting plate fixedly installed between the two sliders, a screw rod is rotatably installed between the two fixed plates, the connecting plate is threadedly connected to the screw rod, and a stepper motor with an output shaft fixedly connected to the screw rod is fixedly installed at the rear end of the rear fixed plate.

[0013] As a preferred solution, a three-axis movable platform is installed on the top front side of the box, which can move up and down, left and right, and front and back. An ultrasonic flaw detector is fixedly installed on the up and down moving sections of the three-axis movable platform through a mounting plate.

[0014] As a preferred solution, a rotating shaft located on the rear side of the shaft column is rotatably installed in the dehydration area, and the left and right ends of the rotating shaft are respectively connected to the corresponding shaft column through belt No. 1, and the left ends of the two driving rollers are rotatably connected through belt No. 2.

[0015] As a preferred solution, a telescopic cylinder corresponding to the bearing plate is fixedly installed at the rear end of the support plate, and the telescopic section of the telescopic cylinder is fixedly connected to the upper end of the corresponding bearing plate through a connecting block.

[0016] As a preferred solution, the shielding member includes an arc-shaped water baffle arranged above and behind the shaft column, and a driving shaft that rotates through the box body is fixedly installed on the left and right sides of the lower end of the arc-shaped water baffle, and an actuator for driving the driving shaft to rotate is provided on the support plate.

[0017] As a preferred solution, the executive part includes a spur gear, and the drive shaft is fixedly installed with a spur gear after passing through the box body. The rear end of the support plate is installed with an L-shaped plate that slides back and forth through two sliding rods. The sliding rod is provided with a tension spring whose two ends are fixed to the L-shaped plate and the support plate. The front end of the vertical section of the L-shaped plate is fixedly installed with a rack that meshes with the lower part of the spur gear.

[0018] As a preferred solution, a push block is fixedly installed at the front end of the horizontal section of the L-shaped plate, and a guiding inclined surface is provided at the front end of the push block for guiding the push block to slide backward along the inclined surface when the support plate is pressed down.

[0019] The above-mentioned one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects: 1. The present invention solves the problem of drive slippage of the gear shaft caused by coupling agent lubrication during the detection stage through non-contact transmission of magnetic gears, and places detection and dehydration in different areas of the same equipment, avoiding the need to transfer the workpiece to an independent device in the traditional method. The overall process is continuous, reducing manual intervention and external transportation.

[0020] 2. The present invention is based on the coordinated positioning of the dual drive rollers and the ejector pin of the magnetic gear transmission, uses non-contact magnetic coupling to realize the rotational power transmission of the gear shaft, drives the ejector pin to press the two ends of the gear shaft through the telescopic cylinder, and cooperates with the lifting and translation structure of the support plate linked by the guide groove and the slider. It eliminates the defect of the traditional friction transmission that is prone to slipping and stagnation, and makes the spiral scanning path of the ultrasonic flaw detector accurately match the actual rotation angle of the gear shaft, thereby improving the accuracy of defect recognition.

[0021] 3. The present invention divides the box into the detection area and the dehydration area through a partition, and uses a driving part to control the support plate to carry the gear shaft to move between the two areas, eliminating the manual transfer and secondary positioning steps, shortening the single-piece gear shaft detection and dehydration cycle, and at the same time, the arc-shaped water baffle and water absorption layer arranged in the dehydration area absorb splashing droplets, blocking the coupling agent from falling back to the gear shaft surface or leaking into the working environment, reducing the risk of pollution.

[0022] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the provided drawings.

[0024] Figure 1 It is a three-dimensional structural schematic diagram when the gear shaft of the present invention is ultrasonically detected.

[0025] Figure 2 It is a structural schematic diagram of the detection mechanism of the present invention.

[0026] Figure 3 It is a partial structural schematic diagram of the positioning mechanism of the present invention.

[0027] Figure 4 It is Figure 3 the enlarged view of the structure at A in

[0028] Figure 5 It is a structural schematic diagram of the driving part of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the push-pull member of the present invention.

[0030] Figure 7 It is a partial structural schematic diagram when the gear shaft after detection of the present invention is dehydrated.

[0031] Reference numerals: 10, box body; 11, partition board; 2, detection mechanism; 20, three-axis moving platform; 21, ultrasonic flaw detector; 3, positioning mechanism; 30, driving roller; 300, second belt; 31, support plate; 310, guiding groove; 311, guiding column; 32, supporting plate; 33, bearing plate; 330, telescopic cylinder; 331, connecting block; 34, thimble; 35, shaft column; 350, rotating shaft; 351, first belt; 36, magnetic gear; 4, driving part; 40, slider; 41, limiting rod; 42, fixing plate; 43, push-pull member; 430, connecting plate; 431, lead screw; 432, stepping motor; 5, shielding member; 50, arc-shaped water baffle; 51, driving shaft; 52, execution part; 520, spur gear; 521, L-shaped plate; 522, tension spring; 523, rack; 524, pushing block. Detailed implementation manners

[0032] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0033] As Figure 1 shown, an ultrasonic detection auxiliary device after the formation of a gear shaft includes a box body 10; a detection mechanism 2 and a positioning mechanism 3 are arranged on the box body 10.

[0034] As Figure 1 、 Figure 2 and Figure 3 shown, the inside of the box body 10 is divided into a front detection area and a rear dehydration area by a partition plate 11. The positioning mechanism 3 includes two symmetrically arranged driving rollers 30 that are rotatably installed in the detection area, and two symmetrically arranged support plates 31 are fixedly installed on the top of the box body 10. A support plate 32 is slidably installed between the two support plates 31. The front end of the support plate 32 is slidably installed with two symmetrically arranged bearing plates 33. Thrust pins 34 are rotatably installed on the bearing plates 33. Guide grooves 310 that are slidably matched with the guide columns 311 installed at the left and right ends of the support plate 32 are formed on the opposite surfaces of the two support plates 31. Two symmetrically arranged shaft columns 35 are rotatably installed in the dehydration area. The thrust pins 34 are driven by magnetic gears 36 between the shaft columns 35 and one of the driving rollers 30. A driving part 4 for driving the support plate 32 to move along the guide groove 310 is arranged on the support plate 31.

[0035] As Figure 1 、 Figure 2 and Figure 3 shown, the detection mechanism 2 includes a three-axis moving platform 20. The three-axis moving platform 20 is installed on the front side of the top of the box body 10. The three-axis moving platform 20 can move in the up-down, left-right, and front-back directions. An ultrasonic flaw detector 21 is fixedly installed on the up-down moving section of the three-axis moving platform 20 through a mounting plate.

[0036] As Figure 3 and Figure 4 shown, a rotating shaft 350 located behind the shaft column 35 is rotatably installed in the dehydration area. The left and right ends of the rotating shaft 350 are respectively driven by a first belt 351 to be connected with the corresponding shaft column 35. The left ends of the two driving rollers 30 are rotationally connected by a second belt 300, and one of the driving rollers 30 is driven to rotate by an external first motor, and one of the rotating shafts 350 is driven to rotate by an external second motor.

[0037] As Figure 1 、 Figure 2 andFigure 5 As shown, a telescopic cylinder 330 corresponding to the bearing plate 33 one by one is fixedly installed at the rear end of the supporting plate 32. The telescopic section of the telescopic cylinder 330 is fixedly connected to the upper end of the corresponding bearing plate 33 through an inverted L-shaped connecting block 331.

[0038] As Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 shown, during specific operation, deionized water is injected into the detection area of the box body 10, and then the gear shaft is placed on the two driving rollers 30 manually or by a robotic arm. At this time, the liquid level of the coupling agent is higher than the gear shaft. Then, the two telescopic cylinders 330 drive the two thimbles 34 to move towards each other through the bearing plates 33, and the two thimbles 34 press against both ends of the gear shaft to position and fix the gear shaft. The external first motor drives the corresponding driving roller 30 to rotate, and the rotating driving roller 30 drives the other driving roller 30 to rotate synchronously through the second belt 300. The two driving rollers 30 drive the gear shaft to rotate through friction. At the same time, the driving roller 30 drives the thimble 34 to rotate through the magnetic gear 36. The magnetic gear 36 utilizes the characteristics of the same-sex repulsion and opposite-sex attraction of neodymium iron boron permanent magnets. When the magnetic gear 36 on the driving roller 30, i.e., the active gear, rotates, the position of its magnetic poles changes, pushing the magnetic poles of the magnetic gear 36 on the thimble 34, i.e., the driven gear, to rotate synchronously, realizing non-contact transmission. Thus, the gear shaft can rotate smoothly through the thimble 34 to ensure the accuracy of subsequent detection.

[0039] The front-back moving section of the three-axis moving platform 20 drives the ultrasonic flaw detector 21 to move above the gear shaft, and then the left-right movement of the three-axis moving platform 20 drives the ultrasonic flaw detector 21 to move to the right side of the gear shaft. The up-down moving section of the three-axis moving platform 20 then drives the ultrasonic flaw detector 21 to move downward until the distance between the ultrasonic flaw detector 21 and the outer wall of the gear shaft is within the effective detection range. Then, the three-axis moving platform 20 moves the ultrasonic flaw detector 21 uniformly along the axial direction of the gear shaft, cooperating with the circumferential rotation of the gear shaft, to complete the spiral full-coverage scanning detection. During the movement, the ultrasonic flaw detector 21 can move up and down in real time according to the outer contour of the gear shaft to ensure the safety detection of the scanning path matching the contour.

[0040] The ultrasonic waves emitted by the ultrasonic generator in the ultrasonic flaw detector 2 are propagated in water. During the propagation process, when the ultrasonic waves encounter different material cross-sections and internal defects, reflection, diffraction, refraction, and scattering will occur. The ultrasonic probe receives the propagated ultrasonic waves and converts the mechanical vibration into an electrical signal. After the electrical signal enters the signal processing system of the ultrasonic flaw detector 21 for processing, it is converted into a visual waveform or image. By analyzing the waveform or image, it is judged whether there are defects such as cracks, pores, and inclusions in the gear shaft.

[0041] After the inspection is completed, the three-axis movable platform 20 drives the ultrasonic flaw detector 21 to move away from the gear shaft to avoid interfering with the subsequent movement of the gear shaft; after the ultrasonic flaw detector 21 is moved, the driving unit 4 drives the supporting plate 32 and the fixed gear shaft to move upward over the partition 11 to above the dehydration area, and then moves into the dehydration area, thereby eliminating the manual transfer and secondary positioning steps and shortening the single-piece gear shaft inspection and dehydration cycle. Then, the magnetic gear 36 on the ejector pin 34 cooperates with the magnetic gear 36 on the shaft column 35, and then the external No. 2 motor drives the rotating shaft 350 to rotate. The rotating shaft 350 drives the two shaft columns 35 to rotate at high speed through the No. 1 belt 351. The shaft column 35 drives the ejector pin 34 to rotate at high speed through the cooperation of the magnetic gear 36. The ejector pin 34 drives the gear shaft to rotate for centrifugal dehydration. After dehydration is completed, the driving unit 4 drives the supporting plate 32 and the fixed gear shaft to move upward, and then the dehydrated gear shaft is removed manually or by a robotic arm. Then the above operation is repeated to continue the gear shaft inspection process.

[0042] like Figure 1 、 Figure 3 and Figure 5 As shown, the driving part 4 includes a slider 40, and the slider 40 located above the guide groove 310 is installed on the opposite surfaces of the two support plates 31 for sliding back and forth. The upper end of the supporting plate 32 is fixedly installed with a limiting rod 41 corresponding to the slider 40 one by one, and the upper end of the limiting rod 41 slides through the corresponding slider 40, and the front and rear ends of the two support plates 31 are jointly fixedly installed with a fixing plate 42.

[0043] like Figure 3 As shown, the guide groove 310 is composed of a horizontal section in the middle and two connected front and rear sections, which are inclined downward and away from the horizontal section.

[0044] like Figure 1 and Figure 5 As shown, the fixed plate 42 is provided with a push-pull member 43 for driving the slider 40 to move forward and backward. The push-pull member 43 includes a connecting plate 430 fixedly installed between the two sliders 40, and a screw rod 431 is rotatably installed between the two fixed plates 42. The connecting plate 430 is threadedly connected to the screw rod 431, and a stepper motor 432 whose output shaft is fixedly connected to the screw rod 431 is fixedly installed at the rear end of the rear fixed plate 42.

[0045] like Figure 1 、 Figure 2 、 Figure 6 and Figure 7 As shown, a shielding member 5 is provided in the dehydration area, and the shielding member 5 includes an arc-shaped water baffle 50 provided above and behind the shaft column 35. A driving shaft 51 that rotates and passes through the box body 10 is fixedly installed on the left and right sides of the lower end of the arc-shaped water baffle 50, and an actuator 52 for driving the driving shaft 51 to rotate is provided on the support plate 31.

[0046] As Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, during specific operation, the stepping motor 432 drives the lead screw 431 to rotate. The lead screw 431 then drives the two sliders 40 to move backward through the connecting plate 430. The sliders 40 drive the supporting plate 32 to move backward through the limiting rods 41. The guide posts 311 will slide in the front inclined section of the guiding groove 310 as the supporting plate 32 moves backward, so that the supporting plate 32 moves upward while moving backward, making the gear shaft fixed on the supporting plate 32 higher than the partition plate 11. At this time, the guide posts 311 are located at the connection of the front inclined section and the horizontal section of the guiding groove 310. As the sliders 40 continue to move backward, the supporting plate 32 drives the fixed gear shaft to move horizontally backward to above the dehydration area. At this time, the guide posts 311 are located at the connection of the rear inclined section and the horizontal section of the guiding groove 310. Then the sliders 40 continue to move backward, and drive the supporting plate 32 and the fixed gear shaft to move downward while moving backward under the cooperation of the guide posts 311 and the rear inclined section of the guiding groove 310 until the magnetic gears 36 on the ejector pins 34 and the magnetic gears 36 on the shaft columns 35 enter the effective magnetic coupling distance. At the same time, the arc-shaped water baffle 50 is driven by the execution part 52 to cover the gear shaft. Then the shaft column 35 drives the gear shaft to rotate at a high speed through the magnetic gears 36 and the ejector pins 34 for centrifugal dehydration.

[0047] After the centrifugal dehydration of the gear shaft is completed, the stepping motor 432 drives the lead screw 431 to reverse. The lead screw 431 drives the two sliders 40 to move forward through the connecting plate 430. The sliders 40 drive the supporting plate 32 and the fixed gear shaft to move to above the detection area through the cooperation of the limiting rods 41 and the guide posts 311 and the guiding groove 310. Then the dehydrated gear shaft is removed manually or by a robotic arm, and the gear shaft to be detected is placed on the two driving rollers 30. Then the sliders 40 continue to move forward and reset, and continue the detection and processing of the gear shaft.

[0048] It should be noted that since the surface of the gear shaft is smooth and will not adhere too many water droplets, it is not necessary to rotate at a high speed for a long time during centrifugal dehydration in the dehydration area. Rotating the gear shaft for a short time can achieve the purpose of drying. In addition, a water absorption layer can be laid on the concave surface of the arc-shaped water baffle 50, and multiple groups of air nozzles facing the gear shaft during centrifugal dehydration are distributed circumferentially. The air nozzles blow air towards the rotating gear shaft, and cooperate with the centrifugal dehydration effect to accelerate the drying of its surface, thus shortening the overall time of gear shaft detection. At the same time, the water absorption layer adsorbs the liquid splashed onto the arc-shaped water baffle 50, blocks the deionized water from falling back to the surface of the gear shaft or leaking to the working environment, and reduces the pollution risk.

[0049] As Figure 1 , Figure 3 , Figure 4 and Figure 6As shown, the execution part 52 includes a spur gear 520. After the drive shaft 51 passes through the box body 10, spur gears 520 are fixedly installed on both of them. At the rear ends of the support plates 31, L-shaped plates 521 are slidably installed back and forth through two slide bars. A tension spring 522 whose two ends are respectively fixed to the L-shaped plate 521 and the support plate 31 is sleeved on the slide bar. At the front end of the vertical section of the L-shaped plate 521, a rack 523 meshing with the lower part of the spur gear 520 is fixedly installed.

[0050] As Figure 6 shown, at the front end of the horizontal section of the L-shaped plate 521, a pushing block 524 is fixedly installed. A guiding inclined surface is provided at the front end of the pushing block 524. When the supporting plate 32 presses down on the guiding inclined surface, the pushing block 524 slides backward.

[0051] As Figure 1 、 Figure 3 、 Figure 4 、 Figure 6 and Figure 7 shown, during specific operation, when the supporting plate 32 moves backward and downward, the lower end of the supporting plate 32 will contact the guiding inclined surface of the pushing block 524 to push the pushing block 524 backward. The pushing block 524 drives the rack 523 to move backward through the L-shaped plate 521, and at the same time stretches the tension spring 522. When the rack 523 moves, it meshes with the spur gear 520 to rotate, and drives the arc-shaped water baffle 50 to rotate forward through the drive shaft 51. After the gear shaft moves to the corresponding position in the dehydration area, at this time, the end of the arc-shaped water baffle 50 away from the drive shaft 51 contacts the upper end of the partition plate 11, so as to avoid the pollution of the surrounding working environment caused by the splashing of the coupling agent when the gear shaft performs centrifugal dehydration.

[0052] After the centrifugal dehydration of the gear shaft is completed, the slider 40 moves forward and drives the supporting plate 32 to move forward and upward through the cooperation of the guide post 311 and the rear inclined section of the guiding groove 310, so that the supporting plate 32 gradually moves away from the pushing block 524. Thus, under the action of the tension spring 522 and the L-shaped plate 521, the rack 523 is driven to move forward, and the rack 523 drives the arc-shaped water baffle 50 to rotate backward and reset through the spur gear 520 and the drive shaft 51.

[0053] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0054] In addition, the terms "first", "second", "No. 1", and "No. 2" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", "No. 1", or "No. 2" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.

[0055] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "arranged", "connected", "installed", and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0056] The embodiments of the specific implementation manners are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. An ultrasonic detection auxiliary device after the forming of a gear shaft, comprising a box body and a detection mechanism. The detection mechanism includes a three-axis moving table installed on the box body and an ultrasonic flaw detector installed on the three-axis moving table, and is characterized in that: The box body is also provided with a positioning mechanism; wherein: The box body is divided into a front detection area and a rear dehydration area by a partition; The positioning mechanism includes two front-to-back symmetrical driving rollers rotatably mounted in the detection area, two left-right symmetrical support plates fixedly mounted on the top of the box body, a support plate slidably mounted between the two support plates, two left-right symmetrical bearing plates slidably mounted at the front end of the support plates, and ejectors rotatably mounted on the bearing plates, two left-right symmetrical shaft columns rotatably mounted in the dehydration area, and the ejector pins, shaft columns and a driving roller are all driven by magnetic gears; a shielding member is provided in the dehydration area; The two driving rollers and the ejector pin provide a stable power source for the gear shaft to rotate. The support plate drives the gear shaft that has completed ultrasonic testing to move to the dehydration area. At the same time, the support plate drives the shielding member to cover the gear shaft to prevent liquid splashing. The shaft column drives the ejector pin to rotate at high speed through the magnetic gear, and drives the gear shaft to centrifugally dehydrate, shortening the overall cycle of gear shaft testing and drying. The two supporting plates are provided with guide grooves on the opposite sides thereof, which cooperate with the guide posts installed at the left and right ends of the supporting plates. The guide grooves are composed of a horizontal section in the middle and two connected front and rear sections, which are inclined downward from the top and away from the horizontal section. The supporting plates are provided with a driving part for driving the supporting plates to move along the guide grooves. The driving part includes a slider, and the opposite surfaces of the two support plates are both slidably installed with sliders located above the guide groove. The upper end of the support plate is fixedly installed with a limit rod corresponding to the slider one by one, and the upper end of the limit rod slides through the corresponding slider, and the front and rear ends of the two support plates are jointly fixedly installed with a fixed plate.

2. The ultrasonic detection auxiliary device for a formed gear shaft according to claim 1, characterized in that: The fixed plate is provided with a push-pull member for driving the slider to move forward and backward. The push-pull member includes a connecting plate fixedly installed between the two sliders, a screw rod is rotatably installed between the two fixed plates, the connecting plate is threadedly connected to the screw rod, and a stepper motor with an output shaft fixedly connected to the screw rod is fixedly installed at the rear end of the rear fixed plate.

3. An ultrasonic testing auxiliary device for a formed gear shaft according to claim 1, characterized in that: A rotating shaft located at the rear side of the shaft column is rotatably installed in the dehydration area. The left and right ends of the rotating shaft are respectively connected to the corresponding shaft column through a No. 1 belt, and the left ends of the two driving rollers are rotatably connected through a No. 2 belt.

4. An ultrasonic testing auxiliary device for a formed gear shaft according to claim 1, characterized in that: A telescopic cylinder corresponding to the bearing plate is fixedly installed at the rear end of the supporting plate, and the telescopic section of the telescopic cylinder is fixedly connected to the upper end of the corresponding bearing plate through a connecting block.

5. An ultrasonic testing auxiliary device for a formed gear shaft according to claim 1, characterized in that: The shielding member includes an arc-shaped water baffle provided above and behind the shaft column. A driving shaft that rotates through the box body is fixedly installed on both sides of the lower end of the arc-shaped water baffle. An executive part for driving the driving shaft to rotate is provided on the support plate.

6. The ultrasonic detection auxiliary device after the forming of the gear shaft according to claim 5, wherein: The executive part includes a spur gear, and the drive shaft is fixedly installed with a spur gear after passing through the box body. The rear end of the support plate is installed with an L-shaped plate that slides back and forth through two sliding rods. The sliding rod is provided with a tension spring whose two ends are fixed to the L-shaped plate and the support plate. The front end of the vertical section of the L-shaped plate is fixedly installed with a rack that meshes with the lower part of the spur gear.

7. An ultrasonic inspection auxiliary device after the forming of a gear shaft according to claim 6, characterized in that: A push block is fixedly installed at the front end of the horizontal section of the L-shaped plate. A guiding inclined surface is provided at the front end of the push block for guiding the push block to slide backward along the inclined surface when the supporting plate is pressed down.

Images