Axle magnetic powder inspection process

Abstract

The invention provides an axle magnetic powder inspection process, and relates to the technical field of axle detection, and the axle magnetic powder inspection process comprises the following steps: S1, placing a magnetized high-speed rail axle on the first side of the upper end of a water tank; s2, controlling the grabbing device to horizontally move towards the axle direction of the high-speed rail through a driving device, and descending to a preset height; s3, continuously spraying magnetic suspension liquid towards the direction of the high-speed rail axle through a coating nozzle, after spraying of the magnetic suspension liquid is completed, conducting appearance detection on the high-speed rail axle, conducting demagnetization on the high-speed rail axle after appearance detection of the high-speed rail axle is completed, and then transferring the high-speed rail axle to the second side of the upper end of a water tank through a driving device and a grabbing device to be opposite to a cleaning device; and S4, after the high-speed rail axle is placed, the traction assembly pulls the bearing assembly to move, and the cleaning nozzle continuously sprays the cleaning liquid towards the high-speed rail axle. According to the invention, the occupation of transverse space in a workshop is reduced, a related cleaning structure and a control mechanism are simplified, and the magnetic powder inspection efficiency of the high-speed rail axle is improved on the whole.

Description

Technical Field

[0001] The present invention relates to the technical field of axle detection, and in particular to a magnetic particle flaw detection process for an axle. Background Art

[0002] The magnetic suspension is sprayed on the magnetized surface of the high-speed railway axle through the wet magnetic particle inspection process. By observing the distribution of magnetic powder on the surface of the high-speed railway axle, the location of the surface defects of the high-speed railway axle can be quickly detected. It has the characteristics of low detection cost, high detection efficiency and accurate detection results.

[0003] The existing wet magnetic particle inspection process requires the axles to be transported to different locations in sequence. During the coating of the magnetic suspension and the operation of the high-speed rail axles, multiple workstations and multiple grasping robots are required to cooperate, occupying a large horizontal space in the workshop and limiting the efficiency of high-speed rail axle inspection. Summary of the Invention

[0004] In response to the above problems, the present invention provides an axle magnetic particle inspection process, which reduces the horizontal space occupied in the workshop, greatly simplifies the relevant cleaning structure and control mechanism, and generally improves the efficiency of high-speed rail axle magnetic particle inspection.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is: A magnetic particle flaw detection process for an axle uses a magnetic particle flaw detection device, the magnetic particle flaw detection device includes a carrier, a driving device is provided at the upper end of the carrier, and a grabbing device for grabbing a high-speed railway axle is provided at the lower end of the driving device, the grabbing device includes a grabbing bracket, a clamping assembly located at the lower end of the grabbing bracket, and a clamping drive assembly for controlling the movement of the clamping assembly, a coating nozzle is provided on the side wall of the grabbing bracket; a water tank is provided below the grabbing device, an opening is provided at the upper end of the water tank, and a guide rail is provided at the upper end of the opening, and the high-speed railway axle can be supported by the guide rail, and a cleaning device is also provided at the upper end of the water tank, and the surface of the high-speed railway axle that has been inspected is efficiently cleaned by the cleaning device, and the cleaning device includes a supporting assembly, and the supporting assembly includes a first supporting block and a second supporting block that are interconnected and spaced apart, and the outer surface of the first supporting block is provided with a plurality of support blocks. The side is connected to a traction component, and the side wall of the second supporting block is provided with a cleaning nozzle for spraying cleaning liquid toward the high-speed rail axle; it includes the following steps: S1, placing the magnetized high-speed rail axle on the first side of the upper end of the water tank; S2, controlling the grabbing device to move horizontally toward the high-speed rail axle through the driving device, and descending to a predetermined height; S3, continuously spraying magnetic suspension liquid toward the high-speed rail axle through the coating nozzle, and after the magnetic suspension liquid is sprayed, the high-speed rail axle is visually inspected, and after the appearance inspection of the high-speed rail axle is completed, the high-speed rail axle is demagnetized, and then the high-speed rail axle is transferred to the second side of the upper end of the water tank opposite to the cleaning device through the driving device and the grabbing device; S4, after the high-speed rail axle is placed, the supporting component is towed to move by the traction component, and the movement of the supporting component drives the high-speed rail axle to roll while the cleaning nozzle continuously sprays cleaning liquid toward the high-speed rail axle.

[0006] Preferably, the inner walls of the first supporting block and the second supporting block are arc-shaped, the first supporting block and the bottom of the first supporting block are connected by a connecting rod, and a strip groove for accommodating the connecting rod is opened at the upper end of the water tank.

[0007] Preferably, the cleaning device also includes a pump liquid assembly, which has a pump liquid chamber formed inside. When the supporting assembly moves toward the first side, the pump liquid chamber is controlled to expand to achieve the extraction of cleaning liquid. When the supporting assembly moves toward the second side, the pump liquid chamber is controlled to contract to control the cleaning liquid to be pumped out from the cleaning nozzle.

[0008] Preferably, the pump liquid assembly includes a pump liquid housing, the inner wall of the pump liquid housing is sealed and slidably connected to a pump liquid piston, the side wall of the pump liquid piston is fixed with a pump liquid rod, the end of the pump liquid rod passes through the pump liquid housing and is fixedly connected to the second support block, and a pump liquid chamber is formed between the pump liquid piston and the pump liquid housing.

[0009] Preferably, the bottom of the pump liquid chamber is connected to an extraction pipe for extracting cleaning liquid, the interior of the pump liquid rod is hollow for pumping cleaning liquid, and the extraction pipe and the hollow part of the pump liquid rod are both provided with a one-way valve.

[0010] Preferably, a filtering device is provided at the end of the extraction pipe, and the filtering device extends into the interior of the water tank.

[0011] Preferably, a detection device is further provided at the lower end of the gripping device, and the detection device is located in the middle and is used to detect the vertical distance between the gripping device and the high-speed rail axle.

[0012] Preferably, the detection device includes a relatively fixed detection base, a relatively sliding detection probe, and a reset spring located between the detection probe and the detection base, and a touch structure is further provided between the detection probe and the detection base.

[0013] The beneficial effects of the present invention are: Compared with the existing technology, the driving device, grabbing device, water tank and cleaning device are integrated in a three-dimensional space. The grabbing device is located at the upper end of the water tank for grabbing, and the cleaning device is located on the inside to clean the high-speed rail axle. Multiple steps can be carried out simultaneously in the three-dimensional space, which greatly reduces the horizontal space occupied in the workshop; and after the demagnetized high-speed rail axle is placed on the surface of the cleaning device, the high-speed rail axle can be driven to roll by pulling the supporting assembly to move, and at the same time, the pump liquid housing is controlled to spray cleaning liquid to complete the continuous cleaning of the high-speed rail axle surface, which greatly simplifies the relevant cleaning structure and control mechanism, and improves the efficiency of magnetic particle inspection of high-speed rail axles as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the main structure of the present invention.

[0015] Figure 2 It is a side structural schematic diagram of the present invention.

[0016] Figure 3 For the present invention Figure 1 A is an enlarged structural diagram of FIG.

[0017] Figure 4 For the present invention Figure 2 Schematic diagram of the enlarged structure at point B.

[0018] Figure 5 For the present invention Figure 2 Enlarged structural diagram at C.

[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the detection device of the present invention.

[0020] Figure 7 Schematic diagram of the internal structure of the detection device of the present invention.

[0021] Figure 8 For the present invention Figure 7 The enlarged structural diagram at D is shown.

[0022] Figure: 100, carrier; 200, drive device; 300, gripping device; 310, gripping bracket; 311, coating nozzle; 320, clamping drive assembly; 330, clamping assembly; 331, elastic pad; 400, detection device; 410, detection probe; 420, return spring; 430, detection base; 4301, lifting chamber; 431, detection housing; 432, detection piston; 433, liquid outlet pipe Channel; 434, liquid inlet pipe; 435, elastic element; 500, high-speed rail axle; 600, water tank; 700, cleaning device; 710, traction assembly; 720, supporting assembly; 721, first supporting block; 722, second supporting block; 730, cleaning nozzle; 740, pump liquid assembly; 7401, pump liquid chamber; 741, pump liquid rod; 742, pump liquid piston; 743, pump liquid housing; 744, extraction pipe. DETAILED DESCRIPTION

[0023] The present invention will be further described below with reference to the accompanying drawings and examples.

[0024] Refer to the attached Figure 1 -Attached Figure 8 , a magnetic particle flaw detection process for an axle, used for performing magnetic particle flaw detection on a high-speed railway axle, used for detecting whether the high-speed railway axle has defects, using a magnetic particle flaw detection equipment, the magnetic particle flaw detection equipment includes a carrier 100, a driving device 200 is provided at the upper end of the carrier 100, and a grabbing device 300 is provided at the lower end of the driving device 200, the grabbing device 300 grabs the high-speed railway axle 500, grabs and moves the high-speed railway axle 500 to a predetermined position, and controls the high-speed railway axle 500 to successively realize magnetic powder coating, demagnetization and magnetic powder removal at different positions.

[0025] Two tracks are symmetrically arranged at the upper end of the carrier 100. The driving device 200 is located inside the tracks and can move linearly along the tracks to drive the grasping device 300 below to move to a predetermined position.

[0026] The gripping device 300 here includes a gripping bracket 310, a clamping assembly 330 and a clamping drive assembly 320 provided at the lower end of the gripping bracket 310, wherein the clamping assembly 330 here is two arc-shaped grippers that are symmetrical on the left and right, and an elastic pad 331 is fixed on the inner surface of the arc-shaped grippers. In the process of gripping the high-speed rail axle 500, the two arc-shaped grippers are controlled by the clamping drive assembly 320 to approach each other, and the gripping of the high-speed rail axle 500 is completed from both sides; after the high-speed rail axle 500 is transferred to a predetermined position, the two arc-shaped grippers are controlled to move away from each other, and the restriction on the high-speed rail axle 500 is cancelled. The high-speed rail axle 500 is cleaned and collected in a subsequent area.

[0027] The clamping drive assembly 320 here can be selected as a double-headed threaded rod, and a drive motor is also provided on the outside. When the drive motor drives the double-headed threaded rod to rotate, it can drive the arc-shaped clamps on both sides to move linearly toward the inside or outside synchronously to realize drive control; by adopting the drive mode of the double-headed threaded rod, a self-locking state can be formed during the stopping process, avoiding loose gripping caused by power outage or oil failure, and ensuring the normal and safe gripping of the high-speed rail axle 500.

[0028] An inclined coating nozzle 311 is also provided on the inner side of the grabbing bracket 310, and the magnetic suspension can be sprayed toward the high-speed rail axle 500 through the coating nozzle 311. The coating nozzle 311 here is arranged along the length direction of the grabbing bracket 310. The magnetic suspension can be fully sprayed on the surface of the high-speed rail axle 500 through the coating nozzle 311, and the magnetic suspension is controlled to contact with the magnetized high-speed rail axle 500, thereby realizing wet magnetic particle inspection. Subsequently, by observing the state and position of magnetic powder aggregation on the surface of the high-speed rail axle 500, the high-speed rail axle 500 can be efficiently inspected, and the damage condition and location of the high-speed rail axle 500 can be judged in a timely and accurate manner.

[0029] During the wet magnetic particle inspection process, the high-speed rail axle 500 can also be controlled to rotate around its own axis. During the rotation process, various positions on the surface of the high-speed rail axle 500 are controlled to be opposite to the coating nozzle 311, further accelerating the contact between the magnetic powder in the magnetic suspension and the high-speed rail axle 500, and further improving the efficiency of the wet magnetic particle inspection.

[0030] A detection device 400 is also provided at the lower end of the grasping device 300, which detects the height positions of the grasping device 300 and the high-speed rail axle 500 through the detection device 400 to ensure that the grasping device 300 is stable and accurate in the vertical height direction; the detection device 400 here is arranged vertically and is located between the two arc-shaped clamps. During the descending process of the grasping device 300, the detection device 400 contacts the uppermost end of the high-speed rail axle 500, squeezes and contracts after contact, and finally sends a signal to remind the grasping device 300 to descend to a suitable height, and then controls the two arc-shaped clamps to approach to complete the grasping of the high-speed rail axle 500. In this process, the spraying of the magnetic suspension is also completed to facilitate subsequent flaw detection.

[0031] Specifically, the detection device 400 includes a detection probe 410, a reset spring 420 and a detection base 430. The detection probe 410 and the detection base 430 are slidingly connected, the detection base 430 is in a relatively fixed position, the detection probe 410 and the grasping bracket 310 are detachably fixed, the detection probe 410 can be in a relatively movable position, and can move linearly along the vertical axis; the reset spring 420 here can be located between the detection probe 410 and the detection base 430 to play a role of elastic reset. Under the elastic push of the reset spring 420, the detection probe 410 can be in a normally extended state, that is, the bottom of the detection probe 410 and the detection base 430 are at the farthest distance.

[0032] In the process of the grasping device 300 driving the detection device 400 to gradually descend, the detection probe 410 of the detection device 400 first contacts the upper end of the high-speed rail axle 500. After the contact, the detection probe 410 here is compressed and contracted. A touch structure is arranged between the detection probe 410 and the detection base 430. After the detection probe 410 contracts to a predetermined length, the touch structure sends a signal to the grasping device 300 to control the grasping device 300 to stop moving downward. After the vertical height of the grasping device 300 drops to a predetermined position, the two arc-shaped grippers of the grasping device 300 are controlled to move toward the inside to grasp the high-speed rail axle 500.

[0033] Furthermore, the detection base 430 includes a detection shell 431, in which a detection piston 432 is sealed and slidably connected. The detection probe 410 here passes through the detection shell 431 and is fixedly connected to the detection piston 432. An elastic element 435 is also provided on the side of the detection piston 432 away from the detection probe 410. The elastic element 435 can play the role of elastic support, thereby controlling the detection piston 432 to be normally located at the bottom.

[0034] A lifting chamber 4301 is formed between the bottom of the detection piston 432 and the detection shell 431. The lifting chamber 4301 is connected to a liquid inlet pipe 434 and a liquid outlet pipe 433. A magnetic suspension liquid pumping device is also provided on the outside. The lifting chamber 4301 here is connected in series between the magnetic suspension liquid pumping device and the coating nozzle 311 through the liquid inlet pipe 434 and the liquid outlet pipe 433. After the detection piston 432 moves upward to a predetermined height, it can be staggered with the higher liquid inlet pipe 434. Subsequently, the magnetic suspension liquid pumping device can push the magnetic suspension liquid toward the coating nozzle 311. 11 pumping, during the pumping process, it passes through the lifting chamber 4301, and the pressure in the lifting chamber 4301 increases, which can continue to push the detection piston 432 to move upward, and finally drive the detection probe 410 to move upward synchronously, driving the bottom of the detection probe 410 to separate from the upper end surface of the high-speed rail axle 500, avoiding the bottom of the detection probe 410 and the surface of the high-speed rail axle 500 from being pressed tightly during the spraying of the magnetic suspension liquid, avoiding the occurrence of dead angles in the spraying, and ensuring that the magnetic suspension liquid can fully contact the surface of the high-speed rail axle 500, ensuring the normal and comprehensive implementation of the magnetic particle inspection.

[0035] After the magnetic particle inspection is completed, the pumping of the magnetic suspension liquid is stopped. At this time, the pressure in the lifting chamber 4301 is reduced. Under the action of the elastic element 435, the detection piston 432 can be squeezed to move toward the bottom. During the downward movement of the detection piston 432, the magnetic suspension liquid in the lifting chamber 4301 is ejected from the liquid outlet pipe 433, which can realize the overall reset of the detection piston 432.

[0036] The vertical height of the liquid inlet pipe 434 here is higher than the vertical height of the liquid outlet pipe 433. During the downward movement of the detection piston 432, the side wall of the detection piston 432 first overlaps with the liquid inlet pipe 434. The side wall of the detection piston 432 can close the liquid inlet pipe 434 to prevent the magnetic suspension from entering the lifting chamber 4301, thereby ensuring the normal reset of the detection piston 432. At the same time, the detection piston 432 is in a lower position, which can facilitate the rapid discharge of the magnetic suspension in the lifting chamber 4301, thereby preventing the magnetic suspension from accumulating in the lifting chamber 4301 and being unable to be discharged.

[0037] An electromagnetic valve can be set in the liquid outlet pipe 433. Before the appearance inspection, the electromagnetic valve in the liquid outlet pipe 433 can be closed to prevent the magnetic suspension from flowing out of the lifting chamber 4301, so as to maintain the detection piston 432 and the detection probe 410 at a high position, avoid the detection probe 410 from contacting the surface of the high-speed rail axle 500, and avoid affecting the distribution of magnetic powder on the surface of the high-speed rail axle 500.

[0038] After the magnetic suspension liquid is sprayed on the surface of the high-speed rail axle 500, the surface of the high-speed rail axle 500 can be quickly inspected by manual inspection or visual machine inspection to determine whether there is magnetic powder aggregation and the location of the magnetic powder aggregation, so as to determine whether the high-speed rail axle 500 has defects and the location of the defects.

[0039] After the appearance inspection is completed, the high-speed rail axle 500 is transported to a designated location through the cooperation of the gripping device 300 and the driving device 200 for demagnetization and subsequent surface cleaning to ensure the normal progress of subsequent inspection procedures and processing inspections of the high-speed rail axle 500.

[0040] A large amount of liquid will be generated during the wet magnetic particle inspection process. A water tank 600 is also provided at the bottom of the carrier 100. The water tank 600 is opposite to the carrier 100. The water tank 600 can collect the overflowing liquid to prevent the overflow of the liquid from affecting the surrounding environment.

[0041] The water tank 600 is in the shape of a box, with an opening at the upper end and a guide rail at the upper end of the opening. The high-speed rail axle 500 can be supported by the guide rail, and the sprayed magnetic suspension liquid directly enters the water tank 600 for centralized collection.

[0042] In order to clean the surface of the high-speed rail axle 500, a cleaning device 700 is further provided at the upper end of the water tank 600. The cleaning device 700 can efficiently clean the surface of the high-speed rail axle 500 after inspection to avoid the residue of particulate impurities.

[0043] The cleaning device 700 includes a supporting assembly 720 for supporting the high-speed rail axle 500. A traction assembly 710 is provided on the first side of the supporting assembly 720 for pulling the supporting assembly 720 to move linearly. The supporting assembly 720 drives the high-speed rail axle 500 to move linearly to complete continuous cleaning of the surface of the high-speed rail axle 500. A cleaning nozzle 730 and a pumping assembly 740 are also provided on the second side of the supporting assembly 720. The cleaning nozzle 730 can continuously spray cleaning liquid toward the surface of the high-speed rail axle 500 to achieve efficient cleaning of the surface of the high-speed rail axle 500. The pumping assembly 740 can extract and pump the cleaning liquid, and the extracted and pumped cleaning liquid is concentrated on one side of the cleaning nozzle 730 and sprayed toward the high-speed rail axle 500 through the cleaning nozzle 730.

[0044] The supporting assembly 720 here includes a first supporting block 721 and a second supporting block 722 arranged at intervals. The first supporting block 721 and the second supporting block 722 can be located on both sides to limit the high-speed rail axle 500. The bottoms of the first supporting block 721 and the second supporting block 722 are in a connected state, and when the traction assembly 710 pulls the first supporting block 721 to move, it can drive the second supporting block 722 to move synchronously.

[0045] By arranging the first supporting block 721 and the second supporting block 722 at intervals, the high-speed rail axle 500 can contact the upper end of the water tank 600. During the movement of the supporting assembly 720, the high-speed rail axle 500 can be driven to roll synchronously. The high-speed rail axle 500 completes continuous surface cleaning during the rolling process, which can avoid the residue of particulate matter on the surface of the high-speed rail axle 500 to the greatest extent.

[0046] Through the above-mentioned structural design, the pumping volume of the cleaning liquid can be reduced, and efficient cleaning can be completed by rotating the high-speed rail axle 500 once. At the same time, there is no need to set a ring-shaped cleaning nozzle and a ring-rotating cleaning mechanism around the high-speed rail axle 500. The upper end of the high-speed rail axle 500 is in a completely open state, which is convenient for grabbing and placing the high-speed rail axle 500 and will not collide with related structures. The efficiency of grabbing and placing the high-speed rail axle 500 is improved, and the probability of structural damage is also reduced.

[0047] The traction assembly 710 here can be selected as a traction structure, or an existing traction structure such as a telescopic rod or a threaded rod, which can pull the supporting assembly 720 and the high-speed rail axle 500 to move toward the outside at a constant speed.

[0048] The cleaning nozzle 730 here is selected as a linear nozzle, which can be located at the bottom to continuously spray cleaning liquid toward the surface of the high-speed rail axle 500. The sprayed cleaning liquid has a certain pressure and can efficiently clean the surface of the high-speed rail axle 500 after demagnetization, thereby avoiding the residue of particulate matter on the surface of the high-speed rail axle 500 to the greatest extent.

[0049] The pump liquid assembly 740 here includes a pump liquid housing 743, in which a pump liquid piston 742 is slidably connected, and a hollow pump liquid rod 741 is fixed to the side wall of the pump liquid piston 742. A spring can be sleeved on the outside of the pump liquid rod 741 to control the pump liquid rod 741 to be in a normally contracted state to achieve automatic reset.

[0050] The end of the pumping rod 741 is connected to the cleaning nozzle 730, and a pumping chamber 7401 is formed between the pumping piston 742 and the pumping housing 743. The edge of the pumping chamber 7401 is also connected to an extraction pipe 744. One-way valves are provided in the extraction pipe 744 and the hollow pumping rod 741. When the pumping rod 741 drives the pumping piston 742 to extend, the pumping chamber 7401 expands. Under the action of the one-way valves on both sides, cleaning liquid can be extracted into the pumping chamber 7401 through the extraction pipe 744 to prepare the cleaning liquid.

[0051] In the process of the pump rod 741 driving the pump piston 742 to contract, the pump chamber 7401 shrinks. Due to the restriction of the two one-way valves, the cleaning liquid can only be pumped into the cleaning nozzle 730 in one direction through the pump rod 741, and finally pumped out from the cleaning nozzle 730 to complete the cleaning.

[0052] Subsequently, the cleaned high-speed rail axle 500 is transferred to a predetermined location by a material unloading gripper for drying and subsequent processing, thereby completing the wet magnetic particle inspection, and different high-speed rail axles are sorted and unloaded according to whether they have defects.

[0053] Through the above-mentioned structural design, the end of the pumping rod 741 is fixedly connected to the second supporting block 722 of the supporting assembly 720, and the contraction of the pumping assembly 740 is synchronously controlled during the movement of the supporting assembly 720, so that the cleaning liquid can be automatically pumped in and out, thereby realizing an automatic cleaning process; at the same time, in conjunction with the movement of the supporting assembly 720, the high-speed rail axle 500 is driven to roll, and the cleaning nozzle 730 in a constant position can continuously spray cleaning liquid toward the surface of the rolling high-speed rail axle 500, thereby realizing continuous cleaning of the surface of the high-speed rail axle 500.

[0054] A filtering device is installed at the lower end of the extraction pipe 744, and the filtering device can extend to the interior of the water tank 600. The particulate matter and liquid in the magnetic suspension can be separated by the filtering device, and the clean liquid is pumped into the pump liquid chamber 7401 as a clean liquid. Through the above structural design, there is no need to set up a separate pumping component, and the filtered magnetic suspension in the water tank 600 can be repeatedly recycled as a clean liquid. At the same time, the cleaned liquid can drip into the water tank 600 and be collected again. Without considering evaporation and other losses, the liquid in the water tank 600 can achieve self-balance, and only a small amount of water needs to be added regularly. Overall, the loss of resources is saved and the automatic circulation of the liquid is realized.

[0055] The present invention comprises the steps of: Step 1: Place the magnetized high-speed rail axle 500 on the first side of the upper end of the water tank 600; Step 2: Control the grabbing device 300 to move horizontally toward the high-speed rail axle 500 through the driving device 200, and descend to a predetermined height; Step 3: Continuously spray magnetic suspension liquid toward the high-speed rail axle 500 through the coating nozzle 311. After the magnetic suspension liquid is sprayed, the high-speed rail axle 500 is visually inspected. After the appearance inspection of the high-speed rail axle 500 is completed, the high-speed rail axle 500 is demagnetized, and then the high-speed rail axle 500 is transferred to the second side of the upper end of the water tank 600 opposite to the cleaning device 700 through the driving device 200 and the grabbing device 300; Step 4: After the high-speed rail axle 500 is placed, the supporting assembly 720 is pulled to move by the traction assembly 710. The support assembly 720 moves and drives the high-speed rail axle 500 to roll while the cleaning nozzle 730 continuously sprays cleaning liquid toward the high-speed rail axle 500.

[0056] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A magnetic particle inspection process for an axle, using a magnetic particle inspection device, the magnetic particle inspection device comprising a carrier (100), a driving device (200) being provided at the upper end of the carrier (100), and a grabbing device (300) for grabbing a high-speed railway axle (500) being provided at the lower end of the driving device (200), characterized in that: The grabbing device (300) includes a grabbing bracket (310), and a coating nozzle (311) is provided on a side wall of the grabbing bracket (310); a water tank (600) is provided below the grabbing device (300), and an opening is provided at the upper end of the water tank (600), and a guide rail is provided at the upper end of the opening, and the high-speed rail axle (500) is supported by the guide rail; a cleaning device (700) is also provided at the upper end of the water tank (600), and the surface of the high-speed rail axle (500) after inspection is efficiently cleaned by the cleaning device (700), and the cleaning device (700) includes a supporting assembly (720), and the supporting assembly (720) includes a first supporting block (721) and a second supporting block (722) that are connected to each other and arranged at intervals, the first supporting block (721) is connected to the outer side of the traction assembly (710), and the second supporting block (722) is provided with a cleaning nozzle (730) on the side wall thereof for spraying cleaning liquid toward the high-speed rail axle (500); The steps include: S1, placing the magnetized high-speed rail axle (500) on a first side of the upper end of the water tank (600); S2, controlling the grabbing device (300) to move horizontally toward the high-speed rail axle (500) through the driving device (200), and descending to a predetermined height; S3, continuously spraying the magnetic suspension liquid toward the high-speed rail axle (500) through the coating nozzle (311), performing an appearance inspection on the high-speed rail axle (500) after the magnetic suspension liquid is sprayed, demagnetizing the high-speed rail axle (500) after the appearance inspection is completed, and then transferring the high-speed rail axle (500) to the second side of the upper end of the water tank (600) opposite to the cleaning device (700) through the driving device (200) and the grasping device (300); S4. After the high-speed rail axle (500) is placed, the supporting assembly (720) is pulled by the traction assembly (710) to move. The supporting assembly (720) moves to drive the high-speed rail axle (500) to roll while the cleaning nozzle (730) continuously sprays cleaning liquid toward the high-speed rail axle (500).

2. The axle magnetic particle inspection process according to claim 1, characterized in that: The inner walls of the first supporting block (721) and the second supporting block (722) are arc-shaped, the bottoms of the first supporting block (721) and the second supporting block (722) are connected by a connecting rod, and a strip groove for accommodating the connecting rod is opened at the upper end of the water tank (600).

3. The axle magnetic particle inspection process according to claim 1, characterized in that: The cleaning device (700) further includes a liquid pumping assembly (740), wherein a liquid pumping chamber (7401) is formed inside the liquid pumping assembly (740). When the supporting assembly (720) moves toward the first side, the liquid pumping chamber (7401) is controlled to expand to extract the cleaning liquid. When the supporting assembly (720) moves toward the second side, the liquid pumping chamber (7401) is controlled to contract to control the cleaning liquid to be pumped out from the cleaning nozzle (730).

4. The axle magnetic particle inspection process according to claim 3, characterized in that: The pump assembly (740) includes a pump housing (743), the inner wall of the pump housing (743) is sealed and slidably connected to a pump piston (742), a pump rod (741) is fixed to the side wall of the pump piston (742), the end of the pump rod (741) passes through the pump housing (743) and is fixedly connected to the second supporting block (722), and a pump chamber (7401) is formed between the pump piston (742) and the pump housing (743).

5. The axle magnetic particle inspection process according to claim 4, characterized in that: The bottom of the pumping chamber (7401) is connected to an extraction pipe (744) for extracting cleaning liquid. The interior of the pumping rod (741) is hollow and is used to pump the cleaning liquid. Both the extraction pipe (744) and the hollow portion of the pumping rod (741) are provided with a one-way valve.

6. The axle magnetic particle inspection process according to claim 5, characterized in that: A filtering device is provided at the end of the extraction pipe (744), and the filtering device extends into the interior of the water tank (600).

7. The axle magnetic particle inspection process according to claim 1, characterized in that: A detection device (400) is also provided at the lower end of the gripping device (300), and the detection device (400) is located in the middle and is used to detect the distance between the gripping device (300) and the high-speed rail axle (500) in the vertical direction.

8. The axle magnetic particle inspection process according to claim 1, characterized in that: The detection device (400) comprises a relatively fixed detection base (430), a relatively sliding detection probe (410), and a return spring (420) located between the detection probe (410) and the detection base (430); a touch structure is also provided between the detection probe (410) and the detection base (430).

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