CN114472371A - Laser cleaning machine for automatically cleaning train brake beam - Google Patents
Laser cleaning machine for automatically cleaning train brake beam Download PDFInfo
- Publication number
- CN114472371A CN114472371A CN202210133888.0A CN202210133888A CN114472371A CN 114472371 A CN114472371 A CN 114472371A CN 202210133888 A CN202210133888 A CN 202210133888A CN 114472371 A CN114472371 A CN 114472371A
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- China
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- laser
- brake beam
- laser cleaning
- manipulator
- jacking
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Laser Beam Processing (AREA)
Abstract
The invention discloses a laser cleaning machine for automatically cleaning train brake beams, which comprises two case head cabinets, a portal frame and a laser cleaning system, wherein the two case head cabinets are respectively arranged at two sides of a multiple chain, the portal frame stretches across the multiple chain, two ends of the portal frame are respectively fixed with the two case head cabinets, the laser cleaning system comprises a manipulator host, a manipulator, a laser host and a laser cleaning head, the manipulator host and the laser host are arranged in the case head cabinets, the manipulator is fixed on the portal frame and is electrically connected with the manipulator host, and the laser cleaning head is fixed on the manipulator and is electrically connected with the laser host. Mechanical equipment is used for replacing manpower, so that the polishing efficiency and the polishing effect can be improved, and the problem of excessive polishing can be avoided; in addition, mechanical equipment is used for derusting, workers can be far away from a derusting site, and the influence of dust pollution on the health of the workers is avoided.
Description
Technical Field
The invention relates to the technical field of train part overhauling equipment, in particular to a laser cleaning machine for automatically cleaning a train brake beam.
Background
The brake beam is the most important component of a vehicle brake mechanism. When the vehicle is braked, the generated braking force is transmitted to the brake shoe through the brake beam, so that the vehicle stops advancing. The brake beam needs to be periodically detected and maintained to ensure the braking performance. When the brake beam is overhauled and maintained, the brake beam needs to be subjected to flaw detection, and the brake beam needs to be subjected to rust removal before flaw detection. At present, the rust removal work of the brake beam basically adopts manual rust removal, small electric equipment is used for rust removal or shot blasting rust removal, and the problems of low polishing efficiency, poor rust removal effect, excessive polishing (influence on subsequent use), dust pollution, harm to the health of workers and the like exist.
Disclosure of Invention
Therefore, the invention provides a laser cleaning machine for automatically cleaning a train brake beam, which is used for solving one or more of the technical problems of low polishing efficiency, poor rust removal effect, excessive polishing, dust pollution, harm to the health of workers and the like caused by manual rust removal.
In order to achieve the above purpose, the invention provides the following technical scheme:
the utility model provides an automatic change laser cleaning machine who washs train brake beam, includes first cabinet of case, portal frame and laser cleaning system, first cabinet of case is equipped with two, two first cabinet of case sets up respectively in the both sides of multiple chain, the portal frame spanes the top of multiple chain, the both ends of portal frame are respectively with two first cabinet of case is fixed mutually, laser cleaning system includes manipulator host computer, manipulator, laser instrument host computer and laser cleaning head, manipulator host computer, laser instrument host computer are installed in first cabinet of case, the manipulator is fixed in on the portal frame and with manipulator host computer automatically controlled connection, the laser cleaning head be fixed in on the manipulator and with laser instrument host computer automatically controlled connection.
Further, the box head cabinet is a counterweight cabinet.
Furthermore, a hanging bracket is arranged on the portal frame, the hanging bracket is provided with a cross rod stretching over the multiple chain, a sliding ring is arranged on the cross rod, and the electric control lines of the manipulator host and the manipulator and the electric control lines of the laser host and the laser cleaning head penetrate through the sliding ring.
Further, laser cleaning machine still includes climbing mechanism, climbing mechanism is equipped with two, two climbing mechanism is located respectively the both sides of multiple chain and be located two between the headstock cabinet, climbing mechanism is used for will placing brake beam jacking on the multiple chain is to wasing the station or will wasing the brake beam and transfer to the multiple chain.
Further, climbing mechanism includes a jacking board and two vertical jacking cylinders, the jacking board is followed the trend setting of multiple chain, just two are fixed in respectively at the both ends of jacking board on the piston rod of jacking cylinder, the upside of jacking board is equipped with the location fork board, the location fork board is equipped with and is used for preventing the draw-in groove of brake beam upset.
Furthermore, the jacking plate is provided with a plurality of positioning fork plates which are arranged at intervals along the length direction of the jacking plate; the multiple chain is also provided with two rows of positioning fork plates, and the number of the positioning fork plates in each row is equal to that of the positioning fork plates on each jacking plate.
Further, the laser cleaning machine still includes the top and stretches rotary mechanism, the top is stretched rotary mechanism one-to-one and is set up in the top of the location fork board on the board that rises, every the top is stretched rotary mechanism and is all included that two tops stretch cylinder, a top and stretch rotatory driving shaft, a top and stretch rotatory driven shaft and a driving motor, two the top is stretched the cylinder and is fixed in two respectively in the first cabinet of case, two the cylinder is stretched in the top and is set up in opposite directions, the top is stretched rotatory driving shaft, top and is stretched rotatory driven shaft and be fixed in two respectively the top is stretched the end in opposite directions of cylinder, driving motor set up in the first cabinet of case and with the top is stretched rotatory driving shaft transmission and is connected.
Furthermore, a distance meter is arranged at one end, facing the brake beam to be derusted, of the laser cleaning head, and the distance meter is in communication connection with the manipulator host.
Furthermore, the laser cleaning machine also comprises a water cooling machine, wherein a circulating water inlet and outlet hole of the water cooling machine is connected with a circulating water inlet and outlet hole of the laser cleaning head through a circulating water pipeline, and the circulating water pipeline penetrates through the slip ring.
Further, the laser cleaning machine further comprises a controller provided with a human-computer interaction interface, and the controller is electrically connected with the water cooling machine, the manipulator host and the laser host.
The invention has the following advantages:
the manipulator drives the laser cleaning head to aim at the brake beam to be derusted under the control of the manipulator host, and the laser cleaning head performs laser derusting operation on the brake beam to be derusted under the control of the laser host; mechanical equipment is used for replacing manpower, so that the polishing efficiency and the polishing effect can be improved, and the problem of excessive polishing can be avoided; in addition, mechanical equipment is used for derusting, workers can be far away from a derusting site, and the influence of dust pollution on the health of the workers is avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary and that other implementation drawings may be derived from the drawings provided to one of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope covered by the contents disclosed in the present invention.
FIG. 1 is a perspective view of a laser cleaning machine for automatically cleaning a train brake beam according to an embodiment of the present invention;
FIG. 2 is another perspective view of a laser washer for automatically cleaning a train brake beam in accordance with an embodiment of the present invention;
FIG. 3 is a perspective view of a laser cleaning machine for automatically cleaning a train brake beam (with the multiplier chain and brake beam removed) in accordance with an embodiment of the present invention;
FIG. 4 is an enlarged view of A in FIG. 1;
FIG. 5 is an enlarged view of B in FIG. 2;
FIG. 6 is an enlarged view of C in FIG. 3;
fig. 7 is an assembly diagram of a top-extending cylinder, a top-extending rotary driving shaft and a driving motor of a top-extending rotary mechanism of a laser cleaning machine for automatically cleaning a train brake beam according to an embodiment of the invention;
FIG. 8 is a cross-sectional view of a top-extending cylinder, a top-extending rotary driving shaft and a driving motor of a top-extending rotary mechanism of a laser cleaning machine for automatically cleaning a train brake beam according to an embodiment of the present invention;
fig. 9 is an electric control schematic diagram of a laser cleaning machine for automatically cleaning a train brake beam according to an embodiment of the invention.
In the figure:
1-a box head cabinet;
2-portal frame, 21-hanging frame, 22-cross bar, 23-slip ring;
3-laser cleaning system, 31-manipulator host, 32-manipulator, 33-laser host, 34-laser cleaning head, 35-distance measuring instrument;
4-a jacking mechanism, 41-a jacking cylinder, 42-a jacking plate and 43-a positioning fork plate;
5-top extension rotating mechanism, 51-top extension air cylinder, 52-top extension rotating driving shaft, 53-top extension rotating driven shaft, 54-driving motor and 55-chuck;
6-a water chiller;
7-controller, 71-human-computer interaction interface;
an 8-fold chain;
9-brake beam.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for clarity of description, and are not intended to limit the scope of the present invention, and changes or modifications in the relative relationship may be made without substantial changes in the technical content.
As shown in fig. 1-9, the embodiment provides a laser cleaning machine for automatically cleaning a train brake beam, which includes a headstock 1, a gantry 2, a laser cleaning system 3, a jacking mechanism 4, a jacking and rotating mechanism 5, a water chiller 6 and a controller 7.
The headstock cabinet 1 is a counterweight cabinet, can support the weight of the structures such as a portal frame 2, a manipulator 32, a laser cleaning head 34 and the like arranged on the headstock cabinet, and can be internally provided with a manipulator host 31, a laser host 33, a water cooler 6 and the like. The first cabinet 1 is equipped with two, sets up respectively in the both sides of multiple chain 8. The multiple chain 8 is equipment for inspection and maintenance site, on which the brake beam 9 (including the brake beam 9 to be descaled and the derusted brake beam 9) can be placed, and the brake beam 9 can be transferred.
The portal frame 2 spans above the multiple chain 8, and two ends of the portal frame 2 are respectively fixed with the two box head cabinets 1. The gantry 2 can be a simplest beam or other beam structure, and the function of the gantry is to enable the manipulator 32 to hover above the multiple chain 8. The gantry 2 is provided with a hanger 21, the hanger 21 is provided with a cross bar 22 stretching over the multiple chain 8, the cross bar 22 is provided with a slip ring 23, and the slip ring 23 can be a rope ring, such as a ring formed by knotting hemp ropes, or an iron ring or a steel ring with a rubber sheath.
The laser cleaning system 3 comprises a manipulator main body 31, a manipulator 32, a laser main body 33 and a laser cleaning head 34, and can adopt finished products purchased from the market, such as an existing 3-7-axis mechanical (hand) arm or an existing laser rust remover, and the specific model is not limited. The manipulator host computer 31, laser instrument host computer 33 is installed in the first cabinet of case 1, the manipulator 32 is fixed in on the portal frame 2, manipulator host computer 31 and manipulator 32 automatically controlled are connected, laser cleaning head 34 is fixed in on the manipulator 32, laser instrument host computer 33 and laser cleaning head 34 automatically controlled are connected, one end (also called the work end) of waiting to derust brake beam 9 in the orientation of laser cleaning head 34 is equipped with two distancers 35, distancer 35 passes through data line communication with manipulator host computer 31 and is connected, feed back the distance between laser cleaning head 34 and the brake beam 9 in real time, so that the action of the better control manipulator 32 of manipulator host computer 31, in time adjust laser cleaning head 34 position, avoid polishing excessively or the rust cleaning is incomplete. The electric control lines of the manipulator main machine 31 and the manipulator 32, the electric control lines of the laser main machine 33 and the laser cleaning head 34, the data lines of the distance meter 35 and the manipulator main machine 31 and the circulating water pipelines of the water cooling machine 6 and the laser cleaning head 34 in the following description all pass through the slip ring 23 on the cross rod 22, when the manipulator 32 moves, all the lines and pipes move along with the slip ring 23, and the slip ring 23 moves on the cross rod 22 passively, so that the lines and pipes can follow the manipulator 32, and the lines and pipes cannot sag to a cleaning station to influence the laser rust removal operation in the following process.
The jacking mechanisms 4 are two, the two jacking mechanisms 4 are respectively located on two sides of the multiple chain 8 and located between the two head cabinets 1, and the jacking mechanisms 4 are used for jacking the brake beams 9 placed on the multiple chain 8 to a cleaning station or lowering the cleaned brake beams 9 to the multiple chain 8. Every climbing mechanism 4 includes the jacking cylinder 41 of two vertical settings and one along the lifting plate 42 that the trend of multiple chain 8 set up, and two jacking cylinders 41 intervals set up, and the interval direction is unanimous with the trend of multiple chain 8, and on the piston rod of two jacking cylinders 41 was fixed in respectively at the both ends of lifting plate 42, the upside of lifting plate 42 was equipped with location fork board 43, and location fork board 43 is equipped with the draw-in groove that is used for preventing the upset of brake beam 9. In general, the longitudinal (with the orientation of the multiple chain 8 as the longitudinal) position of the positioning fork plate 43 of the lifting plate 42, the longitudinal position of the positioning fork plate 43 on the multiple chain 8, and the longitudinal position of the top-extension turning mechanism 5 coincide, and the top-extension turning mechanism 5 is located directly above the former two, so that the brake beam 9 is turned between the multiple chain 8 and the top-extension turning mechanism 5.
The positioning fork plates 43 of the jacking plates 42 and the positioning fork plates 43 on the multiple chains 8 are viewed as a row in the transverse direction, and a jacking rotary mechanism 5 is arranged above each row of the positioning fork plates 43. Every top is stretched rotary mechanism 5 and is all included two top and is stretched cylinder 51, a top and is stretched rotatory driving shaft 52, a top and is stretched rotatory driven shaft 53 and a driving motor 54, two top stretch cylinders 51 are fixed in two first cabinets 1 respectively, two top stretch cylinders 51 set up in opposite directions, top stretch rotatory driving shaft 52, top stretch rotatory driven shaft 53 are fixed in two opposite ends that stretch cylinder 51 respectively, driving motor 54 sets up in first cabinet 1 and with top stretch rotatory driving shaft 52 transmission connection. When the device is used, the jacking cylinder 51 pushes the two shafts out to clamp (hold) the brake beam 9 tightly, then the driving motor 54 drives the jacking rotary driving shaft 52 to rotate, and the held brake beam 9 and the jacking rotary driven shaft 53 rotate passively, so that the rust removing surface of the brake beam 9 is converted, and the laser cleaning system 3 is matched for omnibearing rust removal. The shaft ends of the jacking rotary driving shaft 52 and the jacking rotary driven shaft 53 are detachably provided with chucks 55 matched with the two ends of the brake beam 9, and the brake beams 9 of different models can be tightly held by replacing different chucks 55.
The laser cleaning machine is matched with the multiple chain 8, and a plurality of rows of positioning fork plates 43 and a top-extending rotating mechanism 5 with the same number are arranged on the whole body. Generally, two rows of positioning fork plates 43 are arranged, that is, each lifting plate 42 is provided with two positioning fork plates 43 arranged at intervals, and the left lifting plate 42 and the right lifting plate 42 are provided with four positioning fork plates 43; the multiple chain 8 is a field device and is generally provided with two columns of positioning fork plates 43, one section of the multiple chain 8 in the laser cleaning machine is at least provided with two rows of positioning fork plates 43, each row is provided with two columns, and the number of the two rows is four.
The water chiller 6 is arranged in the tank head cabinet 1, and the circulating water inlet and outlet holes of the water chiller 6 are connected with the circulating water inlet and outlet holes of the laser cleaning head 34 through a circulating water pipeline, so that the laser cleaning head 34 is cooled, and the continuous work of the laser cleaning head 34 is guaranteed.
The controller 7 is provided with a human-computer interface 71, is electrically connected with actuators such as the manipulator host 31, the laser host 33, the jacking cylinder 41, the jacking cylinder 51, the driving motor 54 and the water chiller 6, and is used for setting or controlling the actions of the actuators through the human-computer interface 71.
When the device works, the brake beam 9 to be cleaned is moved to a fixed position by the multiple chain 8, the jacking cylinder 41 extends out of the jacking plate 42, the positioning fork plate 43 forks the brake beam 9 to be cleaned, the brake beam is jacked to the jacking rotary mechanism 5, jacking rotary shafts (including a driving shaft and a driven shaft) at two ends are pushed out by the jacking cylinder 51, the brake beam 9 to be cleaned is clamped by the detachable chuck 55, after the clamping action is finished, the jacking cylinders 41 at two ends are retracted, the device starts to enter the cleaning work, distance meters 35 are arranged on two side surfaces of the laser cleaning head 34, the distance from the cleaning head to the surface to be cleaned of the brake beam 9 is measured and fed back to the manipulator 32 in real time, the position of the cleaning head is adjusted, the jacking rotary driving shaft 52 drives the brake beam 9 to rotate at a certain speed, so as to carry out the omnibearing cleaning work, after the cleaning work is finished, the laser cleaning system 3 stops working, the jacking cylinder 41 extends out, the cleaned brake beam 9 is put on the multiple chain 8 and transferred to the next process, the equipment waits for the next brake beam 9 to be cleaned to enter the cleaning work position.
The laser cleaning machine for automatically cleaning the train brake beam solves the problems of incomplete cleaning, low efficiency, secondary pollution, workpiece damage and the like of the common brake beam 9 derusting equipment in the market; the equipment adopts a double-station cleaning mode, and can clean two brake beams 9 to be cleaned at one time, so that the cleaning efficiency is improved; the laser cleaning head 34 is driven by the manipulator 32 and is provided with the distance measuring instrument 35, so that the brake beam 9 can be cleaned comprehensively and more flexibly; the rotary jacking mechanism is provided with various types of removable and replaceable chucks 55, can be compatible with various types of brake beams 9, such as brake beams 9 of different types of vehicles such as passenger cars, trucks and high-speed rails, and realizes diversity, diversification and higher equipment universality; can dock with assembly line (combining with multiple chain 8), adopt mechanical type material loading, whole realization is automatic, does not need a large amount of human intervention, practices thrift human cost and time, has promoted work piece quality and work efficiency greatly, guarantees simultaneously that the environmental protection is pollution-free.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (10)
1. The utility model provides an automatic change laser cleaning machine who washs train brake beam, its characterized in that, including first cabinet of case, portal frame and laser cleaning system, first cabinet of case is equipped with two, two first cabinet of case sets up respectively in the both sides of multiple chain, the portal frame spanes the top of multiple chain, the both ends of portal frame are respectively with two first cabinet of case is fixed mutually, laser cleaning system includes manipulator host computer, manipulator, laser instrument host computer and laser cleaning head, manipulator host computer, laser instrument host computer are installed in first cabinet of case, the manipulator is fixed in on the portal frame and with manipulator host computer automatically controlled is connected, laser cleaning head be fixed in on the manipulator and with laser instrument host computer automatically controlled is connected.
2. The laser washer for automatically washing a train brake beam of claim 1, wherein said headstock cabinet is a counterweight cabinet.
3. The laser cleaning machine for automatically cleaning the train brake beam as claimed in claim 1, wherein the gantry is provided with a hanger frame, the hanger frame is provided with a cross bar which spans over the multiple chain, the cross bar is provided with a slip ring, and the electric control lines of the main machine of the mechanical arm and the electric control lines of the main machine of the laser and the laser cleaning head pass through the slip ring.
4. The laser cleaning machine for automatically cleaning the train brake beam according to claim 1, further comprising two jacking mechanisms, wherein the two jacking mechanisms are respectively located on two sides of the multiple chain and located between the two box head cabinets, and the jacking mechanisms are used for jacking the brake beam placed on the multiple chain to a cleaning station or lowering the cleaned brake beam to the multiple chain.
5. The laser cleaning machine for automatically cleaning the train brake beam according to claim 4, wherein the jacking mechanism comprises a jacking plate and two vertical jacking cylinders, the jacking plate is arranged along the trend of the multiple chain, two ends of the jacking plate are respectively fixed on piston rods of the two jacking cylinders, a positioning fork plate is arranged on the upper side of the jacking plate, and the positioning fork plate is provided with a clamping groove for preventing the brake beam from overturning.
6. The laser cleaning machine for automatically cleaning train brake beams according to claim 5, wherein the jacking plate is provided with a plurality of positioning fork plates which are arranged at intervals along the length direction of the jacking plate; the multiple chain is also provided with two rows of positioning fork plates, and the number of the positioning fork plates in each row is equal to that of the positioning fork plates on each jacking plate.
7. The laser cleaning machine for automatically cleaning the train brake beam according to claim 5, further comprising a top-stretching rotating mechanism, wherein the top-stretching rotating mechanism is arranged above the positioning fork plate on the lifting plate in a one-to-one correspondence manner, each top-stretching rotating mechanism comprises two top-stretching air cylinders, a top-stretching rotating driving shaft, a top-stretching rotating driven shaft and a driving motor, the two top-stretching air cylinders are respectively fixed in the two box head cabinets, the two top-stretching air cylinders are arranged in opposite directions, the top-stretching rotating driving shaft and the top-stretching rotating driven shaft are respectively fixed at opposite ends of the two top-stretching air cylinders, and the driving motor is arranged in the box head cabinet and is in transmission connection with the top-stretching rotating driving shaft.
8. The laser cleaning machine for automatically cleaning the train brake beam as claimed in claim 1, wherein a distance measuring instrument is arranged at one end of the laser cleaning head facing the brake beam to be derusted, and the distance measuring instrument is in communication connection with the manipulator host.
9. The laser cleaning machine for automatically cleaning the train brake beam according to claim 1, wherein the laser cleaning machine further comprises a water cooler, a circulating water inlet and outlet hole of the water cooler is connected with a circulating water inlet and outlet hole of the laser cleaning head through a circulating water pipeline, and the circulating water pipeline penetrates through a sliding ring.
10. The laser cleaning machine for automatically cleaning the train brake beam according to claim 9, further comprising a controller with a human-computer interface, wherein the controller is electrically connected with the water chiller, the manipulator host and the laser host.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210133888.0A CN114472371A (en) | 2022-02-14 | 2022-02-14 | Laser cleaning machine for automatically cleaning train brake beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210133888.0A CN114472371A (en) | 2022-02-14 | 2022-02-14 | Laser cleaning machine for automatically cleaning train brake beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114472371A true CN114472371A (en) | 2022-05-13 |
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ID=81480877
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210133888.0A Pending CN114472371A (en) | 2022-02-14 | 2022-02-14 | Laser cleaning machine for automatically cleaning train brake beam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114472371A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115138644A (en) * | 2022-07-15 | 2022-10-04 | 华工法利莱切焊***工程有限公司 | Laser cleaning system for locomotive brake disc |
-
2022
- 2022-02-14 CN CN202210133888.0A patent/CN114472371A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115138644A (en) * | 2022-07-15 | 2022-10-04 | 华工法利莱切焊***工程有限公司 | Laser cleaning system for locomotive brake disc |
| CN115138644B (en) * | 2022-07-15 | 2024-02-20 | 华工法利莱切焊***工程有限公司 | Laser cleaning system for locomotive brake disc |
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