Rust removal equipment

Abstract

The present invention discloses a rust removal device, comprising a positioning platform for positioning a part to be rusted, a rust removal execution component for rust removal of the part to be rusted on the positioning platform, and a control system connected to the rust removal execution component, wherein the rust removal execution component is configured to move under the control of the control system to achieve rust removal of the part to be rusted. The rust removal device can greatly improve the efficiency of rust removal by automatic rust removal, and reduce the labor intensity of workers, and no waste residue and wastewater are generated during the rust removal process, which is environmentally friendly and pollution-free. At the same time, the rust removal effect is good, and there is no need to repeat the rust removal operation many times, thereby reducing production costs.

Description

Technical Field

[0001] The invention relates to the technical field of rail transportation, and in particular to rust removal equipment. Background Art

[0002] The function of the axle box is to transfer the weight and load of the vehicle body to the wheelset, and to reduce friction and running resistance by lubricating the axle neck. During regular subway frame overhaul operations, the rust on the inner wall of the axle box hole needs to be removed. In the prior art, the rust removal operations on the inner wall of the axle box mainly include: 1. Using a high-pressure cleaner to remove rust from the axle box, high-pressure water flow is used to impact the rust layer to separate it from the surface of the substrate; 2. Workers apply rust remover to the rust surface and use sandpaper to grind and remove rust. However, the above-mentioned setting method has high labor costs. Each axle box needs to be coated with rust remover and then wiped repeatedly to remove the rust. Residue or wastewater will be generated at the rust removal site, which is not environmentally friendly. Manual rust removal requires judgment of the rust location, combined with manual grinding and high-pressure water guns, and its work efficiency is low, and the rust removal effect is poor.

[0003] Therefore, how to avoid the low working efficiency of the existing rust removal technology and thus the high production cost is a technical problem that the technicians in this field need to solve at present. Summary of the invention

[0004] The purpose of the present invention is to provide a rust removal device which can realize automatic rust removal, has good rust removal effect, is environmentally friendly, has no pollution, and can greatly reduce labor costs.

[0005] To achieve the above-mentioned purpose, the present invention provides a rust removal device, including a positioning platform for positioning a part to be rusted, a rust removal execution component for rusting the part to be rusted on the positioning platform, and a control system connected to the rust removal execution component, wherein the rust removal execution component is configured to move under the control of the control system to achieve rust removal of the part to be rusted.

[0006] Optionally, the rust removal execution component includes a driving mechanism and a laser head disposed on the driving mechanism and used for emitting laser light to the rust removal surface of the part to be rusted to achieve rust removal.

[0007] Optionally, the driving mechanism includes a transverse transfer part, a longitudinal transfer part and a slide, the longitudinal transfer part is connected to the transverse transfer part, the slide is connected to the longitudinal transfer part, and the longitudinal transfer part can move in the horizontal direction, and the slide can move in the vertical direction.

[0008] Optionally, the laser head is movably connected to the slide.

[0009] Optionally, it also includes a visual system connected to the control system for acquiring image information of the rusted parts of the parts to be derusted, and the acquired image information is transmitted to the control system through the visual system so that the control system can control the movement of the laser head.

[0010] Optionally, the control system is specifically an industrial computer. When the industrial computer receives image information collected by the visual system, the industrial computer generates a preset rust removal trajectory according to the image information processing result, so that the laser head moves along the preset rust removal trajectory to achieve rust removal.

[0011] Optionally, it further comprises a bracket, the bracket comprises an I-beam, a column and a base, the driving mechanism is mounted on the I-beam, and the positioning platform is fixedly connected to the base.

[0012] Optionally, the positioning platform includes a round table and a three-jaw chuck disposed on the round table for fixing the part to be derusted.

[0013] Optionally, it also includes a smoke purification system connected to the positioning platform, which is used to absorb smoke generated by rust removal and purify the smoke to discharge purified gas.

[0014] Optionally, the smoke purification system includes a dust suction device and a smoke purifier connected to the dust suction device.

[0015] Relative to the above-mentioned background technology, a rust removal device provided by an embodiment of the present invention includes a positioning platform, a rust removal execution component and a control system, wherein the positioning platform is used to position the part to be rusted, the rust removal execution component is used to remove rust from the part to be rusted on the positioning platform, the control system is connected to the rust removal execution component, and the rust removal execution component is configured to move under the control of the control system to achieve rust removal of the part to be rusted. The rust removal device configured in this way has the following beneficial effects: when rusting, it is only necessary to place the part to be rusted on the positioning platform, and after turning on the control system and the rust removal execution component, the rusted part of the part to be rusted can be automatically removed. Compared with traditional manual rust removal, the above-mentioned setting method can greatly improve the efficiency of rust removal through automatic rust removal, and reduce the labor intensity of workers. At the same time, the rust removal effect is good, and there is no need to repeat the rust removal operation many times, thereby reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0017] Figure 1A schematic diagram of the structure of a rust removal device provided by an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the structure of a slide table, a visual system, a laser head and a positioning table in the rust removal equipment provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the assembly structure of a visual system and a laser head in a rust removal device provided in an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the structure of a driving mechanism in a rust removal device provided in an embodiment of the present invention;

[0021] Figure 5 A schematic diagram of the structure of a bracket in a rust removal device provided in an embodiment of the present invention;

[0022] Figure 6 A schematic diagram of the assembly structure of the positioning platform and the bracket in the rust removal equipment provided by an embodiment of the present invention;

[0023] Figure 7 A schematic diagram of editing a rust removal trajectory for a rust removal device provided in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of a smoke purification system in a rust removal device provided in an embodiment of the present invention.

[0025] in:

[0026] 01-parts to be derusted, 1-bracket, 11-I-beam, 12-column, 13-base, 2-four-corner support tables, 3-positioning table, 31-round table, 32-three-jaw chuck, 4-rust removal actuator, 41-driving mechanism, 411-lateral transfer part, 412-longitudinal transfer part, 413-slide, 42-laser head, 43-rotating shaft, 5-visual system, 6-control system, 7-smoke purification system, 71-dust suction device, 72-smoke purifier. DETAILED DESCRIPTION

[0027] 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.

[0028] The core of the present invention is to provide a rust removal device, which can realize automatic rust removal, has good rust removal effect, is environmentally friendly, has no pollution, and can greatly reduce labor costs.

[0029] In order to enable those skilled in the art to better understand the scheme of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] It should be noted that the directional words such as "upper end, lower end, left side, right side" described below are all defined based on the drawings in the specification.

[0031] Please refer to Figure 1 Figure 8 , Figure 1 A schematic diagram of the structure of a rust removal device provided by an embodiment of the present invention; Figure 2 A schematic diagram of the structure of a slide table, a visual system, a laser head and a positioning table in the rust removal equipment provided in an embodiment of the present invention; Figure 3 A schematic diagram of the assembly structure of a visual system and a laser head in a rust removal device provided in an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a driving mechanism in a rust removal device provided in an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a bracket in a rust removal device provided in an embodiment of the present invention; Figure 6 A schematic diagram of the assembly structure of the positioning platform and the bracket in the rust removal equipment provided by an embodiment of the present invention; Figure 7 A schematic diagram of editing a rust removal trajectory for a rust removal device provided in an embodiment of the present invention; Figure 8 This is a schematic diagram of a smoke purification system in a rust removal device provided in an embodiment of the present invention.

[0032] A rust removal device is provided in an embodiment of the present invention, which can complete the rust removal work of the axle box of a subway vehicle at a high speed, high efficiency and environmentally friendly. The rust removal device includes a positioning platform 3, a rust removal execution component 4 and a control system 6, wherein the positioning platform 3 is used to position the part to be rusted 01, the rust removal execution component 4 is used to rust the part to be rusted 01 on the positioning platform 3, the control system 6 is connected to the rust removal execution component 4, and the rust removal execution component 4 is configured to be able to move under the control of the control system 6 to achieve rust removal of the part to be rusted 01.

[0033] In this way, when removing rust, it is only necessary to place the part 01 to be removed from rust on the positioning table 3, and after turning on the control system 6 and the rust removal execution component 4, the rusted parts of the part 01 to be removed from rust can be automatically removed from rust. Compared with traditional manual rust removal, the above-mentioned setting method can greatly improve the efficiency of rust removal through automatic rust removal and reduce the labor intensity of workers. No waste residue and waste water are generated during the rust removal process, which is environmentally friendly. At the same time, the rust removal effect is good, and there is no need to repeat the rust removal operation many times, thereby reducing production costs.

[0034] Of course, according to actual needs, the part to be derusted 01 is specifically the axle box of a subway vehicle. The positioning platform 3 can be configured to include a round table 31 and a three-jaw chuck 32 arranged on the round table 31. The three-jaw chuck 32 is used to accurately position the part to be derusted 01. The outer diameter of the round table 31 should be larger than the outer diameter of the main part of the axle box.

[0035] Furthermore, the above-mentioned rust removal execution component 4 includes a driving mechanism 41 and a laser head 42 arranged on the driving mechanism 41. The laser head 42 is used to emit laser to the rust removal surface of the rust removal part 01 to achieve rust removal. Specifically, the laser head 42 can realize the laser cleaning function. Laser cleaning is a new technology based on the interaction between laser and matter. It acts on the workpiece through ultra-high peak and short pulse laser, so that the dirt, rust or coating on the surface of the workpiece absorbs the laser and evaporates or peels off instantly, while the substrate hardly absorbs the laser, thereby achieving the effect of removing surface dirt without damaging the substrate. Compared with traditional cleaning methods, laser cleaning has the advantages of non-contact, no damage to the substrate, precise cleaning, green and environmental protection, and online operation. It is particularly suitable for high-speed online cleaning of designated areas.

[0036] Obviously, the driving mechanism 41 can be specifically a servo mechanism, and the driving mechanism 41 includes a transverse transfer part 411, a longitudinal transfer part 412 and a slide 413, the laser head 42 is arranged on the slide 413, the longitudinal transfer part 412 is connected to the transverse transfer part 411, the slide 413 is connected to the longitudinal transfer part 412, and the longitudinal transfer part 412 can move on the transverse transfer part 411 to realize the movement of the slide 413 and the laser head 42 in the horizontal direction, and the slide 413 can move on the longitudinal transfer part 412 to realize the movement of the slide 413 and the laser head 42 in the vertical direction. Of course, the transverse transfer part 411 and the longitudinal transfer part 412 can be set as servo cylinder devices.

[0037] More specifically, the laser head 42 is movably connected to the slide 413. Preferably, the laser head 42 can be rotatably connected to the slide 413 via a rotating shaft 43. For example, a rotating shaft 43 can be extended from the bottom of the slide 413, and a mounting seat for mounting the laser head 42 is fixedly connected to the rotating shaft 43. In this way, the laser head 42 can rotate freely 360° around the rotating shaft 43. If necessary, the laser head 42 can also be deflected at a certain angle, that is, deflected upward to achieve a "head-up" operation, and deflected downward to achieve a "head-down" operation.

[0038] The laser head 42 thus arranged can remove rust from the inner wall of the axle box by rotating 360°. Since the zero point of the x-axis of the servo mechanism (which can be the midpoint of the lateral transfer part 411) is on the center line of the axle box positioned by the three-jaw chuck 32, the slide 413 designed according to the inner diameter of the axle box and the focal length of the laser head 42 can ensure that the distance between the laser head 42 and the inner wall when it descends into the axle box is just within the focal length range of the laser, so as to achieve precise focusing and accurate rust removal.

[0039] Of course, the equipment also includes a bracket 1, which includes an I-beam 11, a column 12 and a base 13. The driving mechanism 41 is installed on the I-beam 11. The two columns 12 are arranged opposite to each other and support and fix the I-beam 11. The positioning platform 3 is fixed to the base 13 through the four-corner support platforms 2.

[0040] In order to further achieve precise rust removal, the equipment is also provided with a visual system 5, which is detachably connected to the slide 413. The visual system 5 may include a camera arranged on the slide 413. The camera may be installed together with the laser head 42 on a mounting seat at the bottom of the slide 413, thereby realizing the synchronous rotation movement of the camera and the laser head 42.

[0041] The visual system 5 is connected to the control system 6, and the visual system 5 is used to collect image information of the rusted part of the rust-removed part 01, and transmit the acquired image information to the control system 6 through the visual system 5, so that the control system 6 controls the movement of the laser head 42. The control system 6 is specifically an industrial computer. When the industrial computer receives the image information collected by the visual system 5, the industrial computer performs image recognition and preprocessing operations, and generates a preset rust removal trajectory according to the image information processing result, so that the laser head 42 moves according to the preset rust removal trajectory to achieve rust removal.

[0042] It should be noted that the rust removal process of the rust removal equipment includes:

[0043] Loading, that is, installing the axle box on the positioning table 3;

[0044] Turn on the control system 6, and the driving mechanism 41 controls the slide 413 to enter the inner wall of the axle box;

[0045] Turn on the visual system 5 to start image acquisition and recognition. At this time, the laser head 42 and the camera can rotate 360° to cooperate with image recognition and laser rust removal;

[0046] The control system 6 automatically edits the trajectory to generate a preset rust removal trajectory according to the image recognition result, and after judging that the preset rust removal trajectory is correct, controls the laser head 42 to remove rust along the trajectory;

[0047] After the laser head 42 has completed its movement along the preset rust removal trajectory, image recognition is performed again to check whether the rust has been completely removed. If not, the trajectory is edited according to the new rust position. If it has been completely removed, the control system 6 will automatically determine whether there is damage such as cracks on the inner wall of the axle box based on the image recognition function. If there is damage, an inspection is carried out. If there is no damage, the material is unloaded and the rust removal work of the next axle box is started.

[0048] Regarding the image capture method: Place the camera at the midpoint of the axle box axis, take a picture and mark it every 60 degrees from the starting position, and take a total of six pictures to capture images of the axle box for one circle; if the axle box is too high to capture all images at once, select two points at the axis position and rotate twice to capture images; if the camera field of view is small, you can reduce the rotation angle and capture more images.

[0049] Regarding image processing: The color distinction between rust and metal is quite obvious. First, convert the captured image into a grayscale or monochrome image. Then, after denoising, use the automatic threshold segmentation method to find the rusty part and determine the degree of rust according to the depth of the rust color.

[0050] About editing the preset rust removal trajectory: install the laser head 42 to the same axis position as the camera to ensure the consistency of the starting coordinates. According to the location of the rust in the image processing result, a rectangle tangent to the rust can be generated, such as Figure 7 As shown, the length, width and coordinate points of this rectangle can be obtained based on the image processing results. After obtaining all the rectangular information of the rust on the inner wall of the axle box, the trajectory can be edited based on this information, and rust can be removed along the trajectory. In areas with darker rust, the laser power can be appropriately increased and the moving speed can be reduced to ensure that the rust is removed cleanly.

[0051] For the axle box, different rust levels will have a rust color to match them. The rust level can be set to A, B, C, and D. A is a steel surface with a large area of ​​adherent oxide scale and almost no rust; B is a steel surface that has begun to rust and the oxide scale has begun to peel off; C is a steel surface where the oxide scale has peeled off or can be scraped off due to rust, but only a small amount of pitting can be seen under normal vision; D is a steel surface where the oxide scale has peeled off due to rust, and under normal vision, pitting can be seen everywhere. For each level of rust, I will match the appropriate laser power and moving speed through experiments. During image recognition, the color can be used to determine which level of rust it is, and then adjust to the power and speed to match it.

[0052] The above-mentioned setting method can meet the operating requirements of different types of axle boxes, realize accurate positioning of the center of the inner diameter of the axle box, and can use the image recognition function of the control system 6 to automatically identify the rust position, edit the trajectory and perform operations according to the recognition results; the control system 6 can have manual and automatic operation modes, and the operator can choose according to his own requirements. Once the system fails, manual operation can also work accurately and safely. In the event of a failure in a certain operation link, it will not affect the functions of other parts, and will not cause the system to be paralyzed and affect production.

[0053] At the same time, the equipment uses laser for rust removal, and there is no need to add rust removers and other media, nor is there a need to establish a special cleaning area. It is environmentally friendly and saves resources. The system has complete safety assurance functions, including but not limited to: anti-misoperation function and fault diagnosis, detection, and alarm display functions; the equipment is fully open, which is convenient for the operator to observe the working conditions of the equipment at any time and stop emergencies in time; the equipment reserves an information management interface, which can upload the equipment's own status and working status according to management needs.

[0054] On the basis of the above, since rust peeling occurs during the laser rust removal process and smoke is generated, the equipment is equipped with a smoke purification system 7, which is connected to the positioning platform 3. Specifically, the smoke purification system 7 includes a dust suction device 71 and a smoke purifier 72 connected to the dust suction device 71. One end of the dust suction pipe of the dust suction device 71 is seamlessly connected to the positioning platform 3, and cooperates with a high-power suction fan to absorb all waste generated during the rust removal process. The other end is connected to the smoke purifier 72 to filter the waste. The gas discharged through the smoke purification system 7 can meet the indoor emission standards, ensuring a clean and tidy environment.

[0055] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0056] The above is a detailed introduction to the rust removal equipment provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the scheme and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A rust removal device, characterized in that: It comprises a positioning platform (3) for positioning a part to be derusted (01), a rust removal execution component (4) for derusting the part to be derusted (01) on the positioning platform (3), and a control system (6) connected to the rust removal execution component (4), wherein the rust removal execution component (4) is configured to be movable under the control of the control system (6) so as to achieve rust removal on the part to be derusted (01); The rust removal execution component (4) comprises a driving mechanism (41) and a laser head (42) arranged on the driving mechanism (41) and used for emitting laser light to the rust removal surface of the rust removal part (01) to achieve rust removal; The driving mechanism (41) comprises a transverse transfer part (411), a longitudinal transfer part (412) and a slide (413), wherein the longitudinal transfer part (412) is connected to the transverse transfer part (411), and the slide (413) is connected to the longitudinal transfer part (412), and the longitudinal transfer part (412) can move in a horizontal direction, and the slide (413) can move in a vertical direction; The laser head (42) is movably connected to the slide table (413); A rotating shaft (43) extends from the bottom of the slide (413), and a mounting seat for mounting the laser head (42) is fixedly connected to the rotating shaft (43). The laser head (42) can freely rotate 360° around the rotating shaft (43), and the laser head (42) can deflect at a certain angle, that is, deflect upward to realize head-up operation, and deflect downward to realize head-down operation; It also includes a visual system (5) connected to the control system (6) and used to obtain image information of the rusted part of the rust-removed part (01), and the obtained image information is transmitted to the control system (6) through the visual system (5) so that the control system (6) controls the movement of the laser head (42); The image information is specifically rust colors corresponding to different rust levels, and the acquired rust colors are transmitted to the control system (6) through the visual system (5), so that the control system (6) controls the laser head (42) to operate at a power and speed matching the rust colors; Different rust levels will have a rust color to match them. There are four rust levels: A, B, C, and D. A is a steel surface covered with adherent oxide scale but without rust, B is a steel surface that has begun to rust and the oxide scale has begun to peel off, C is a steel surface where the oxide scale has peeled off due to rust or can be scraped off but only pitting can be seen under normal vision, and D is a steel surface where the oxide scale has peeled off due to rust and pitting can be seen under normal vision. Each level of rust will match the appropriate laser power and moving speed. During image recognition, the level of rust is judged by color, and then adjusted to the matching laser power and moving speed; The control system (6) is specifically an industrial computer. When the industrial computer receives the image information collected by the visual system (5), the industrial computer generates a rectangle tangent to the rust based on the location of the rust in the image processing result, and after obtaining all the rectangular information of the rust on the inner wall of the axle box, generates a preset rust removal trajectory for the laser head (42) to move along the preset rust removal trajectory to achieve rust removal.

2. The rust removal equipment according to claim 1, characterized in that: It also comprises a bracket (1), the bracket (1) comprising an I-beam (11), a column (12) and a base (13), the driving mechanism (41) is mounted on the I-beam (11), and the positioning platform (3) is fixedly connected to the base (13).

3. The rust removal equipment according to claim 2, characterized in that: The positioning platform (3) comprises a round platform (31) and a three-jaw chuck (32) arranged on the round platform (31) and used for fixing the part to be derusted (01).

4. The rust removal equipment according to any one of claims 1 to 3, characterized in that: It also includes a smoke dust purification system (7) connected to the positioning platform (3) and used to absorb smoke dust generated by rust removal and purify the smoke dust to discharge purified gas.

5. The rust removal equipment according to claim 4, characterized in that: The smoke dust purification system (7) comprises a dust suction device (71) and a smoke dust purifier (72) connected to the dust suction device (71).

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