RU170076U1 - AUTOMATED COMPLEX OF Shotblasting cleaning of bodies of rolling stock of railways - Google Patents

Abstract

The utility model relates to the field of railway transport, namely, to devices for shot blasting the surface of a rolling stock, and can be used in the process of their repair in the conditions of locomotive repair and car repair enterprises and in enterprises for the repair of motor-car rolling stock. models, - improving the quality and ensuring the adaptability of the complex for shot blasting of various types of rolling stock, differing in size py and design.

Description

Technical field

The utility model relates to the field of railway transport, namely to devices for shot-blasting surface treatment of rolling stock, and can be used in the process of their repair in the conditions of locomotive repair and car repair enterprises and in enterprises for the repair of motor-car rolling stock.

The technical result achieved by using the utility model is to improve the quality and ensure the adaptability of the complex for shot blasting of various types of rolling stock, differing in size and design.

State of the art

A device for bead-blasting cleaning the surface of the body of a passenger car [Technology of car building and repair of cars / V.S. Gerasimov, I.F. Skiba B.M. Kernich et al .; Edited by V.S. Gerasimova - 2nd ed., Rev. and add. - M .: Transport, 1988, 381 p.]. Cleaning is carried out in a closed metal hangar, inside which bead-blasting machines and related additional equipment are placed along the longitudinal walls. The jet of shot from the shot blasting machine is directed to the surface to be cleaned. The spent fraction from the floor and horizontal elements of the body frame is selected by the hose of the mobile suction unit and poured into the bunker at the bottom of the hangar, from where it is selected by the elevator buckets, and fed up into the exhaust fan's operating area. The suction pipe of the fan captures the cleaning products and crushed particles of the fraction, directing them to the cyclone behind the hangar, and the purified, separated fraction enters the receiving hopper of the shot blasting apparatus for reuse. The disadvantage of this device is the lack of automation for controlling the shot blast gun, which reduces productivity and processing efficiency. In addition, the disadvantage of this device is the lack of data on the duration of cleaning, flow rate and material fraction.

The closest technical solution to the declared one is a blasting unit for cleaning rolling stock bodies with an industrial robot Blastman B20S from Blastman Robotics Ltd [http://www.blastman.com/en/products-and-industries/products/robots/gantry-type-robots -ru]. The installation comprises a shot blasting chamber, in which there is a robot of a bridge structure. The robot performs the basic movements in the longitudinal, vertical and horizontal directions of the camera. The robot has excellent reach in the most inaccessible areas of the workpiece, so it can easily cope with cleaning the most complex parts. The robot can also process the internal surfaces of railway rolling stock through windows, hatches or other openings. The robot is controlled both in manual mode using the joystick and in automatic mode, where through a special program all the movements of the robot were recorded by the control system earlier. However, the use of the installation in production with a large type of different rolling stock bodies will not be effective, since the robot will have to be "trained" for each new type of processing object, so it is impossible to quickly change the production process using it.

PM disclosure

The task to which the claimed utility model is aimed is to improve the quality and ensure the adaptability of the automated complex to clean various types of rolling stock bodies that differ in design. Using the proposed model will also allow you to clean other large-sized parts of rolling stock of complex configuration, while ensuring high quality cleaning with a minimum consumption of resources and a high level of automation with a minimum expenditure of time for operation.

This goal is achieved by the fact that the rolling stock body or other large-sized unit placed in the shot blasting chamber is subjected to high-pressure air-blasting. The product to be cleaned is placed on false carts and moved into a closed metal chamber. The movement of the bead-blasting gun along the surface being cleaned is provided by a mechanical robot with a bridge construction, which has seven degrees of freedom, equipped with telescopic and articulated levers. The manipulator is controlled based on the receipt and processing of visual information coming from the vision system. The vision system contains a digital video camera, a laser module, located on both sides of the shot blasting chamber on a movable monorail base, which is necessary to build a three-dimensional surface of the cleaning object using the active triangulation method. Information about the object is transmitted to the control microcomputer, which paves the way for the shotgun and sets control signals for a mechanical robot with a bridge structure. Moving a robot with a shot blast gun provides a targeted effect of the ejected shot at each point of the surface being cleaned, taking into account its configuration. The used separated shot is fed to the receiving hoppers of the shot blasting apparatus for reuse. The entire cleaning process is fully automated.

Description of drawings

In FIG. 1 shows an automated shot blasting complex for bodies of rolling stock of railways, consisting of a closed metal chamber 1, false carts 2, on which the body 3 or another assembly / part of the rolling stock is mounted. The movement of the bead-shot gun 4 is provided by a mechanical robot with a bridge structure 5. The movement of the digital vision system 6, which includes the digital video camera 7 and the laser module 8, is provided by the manipulator 9. The monorail base 13 moves the vision system along the entire cleaning object, and the rack base 14 moves system in a vertical plane. A shot stream directed to the surface to be cleaned is formed by a shot blasting machine 10. The control panel 11 is located in the operator’s room 12, which starts the installation and possible manual and semi-automatic operation modes of the entire complex.

PM implementation

The proposed utility model operates as follows. The body of the rolling stock of railroads 3 to be cleaned is installed in a closed metal chamber 1 using false bogies 2. After installing the cleaning object, the operator starts the shot blasting complex using the control panel 11, which is located in the operator’s room 11, and the chamber 1 is isolated. The vision system 6 of the cleaning object is turned on, the laser module 8 projects a light pulse (laser line) onto the body, and the digital video camera 7 captures the location of the laser on the surface of the object. The monorail base 13 moves the vision system along the entire cleaning object, and the rack base 14 moves the system in a vertical plane and depending on how the strip moves along the surface of the body, the laser appears in different places of the field of view of the digital video camera, thereby creating a three-dimensional engine model using a special program on micro-computers. After recognizing the object to be cleaned, the microcomputer paves the route for the shot blasting gun 9 along the surface of the object, and then sets the control signals for the robot 5. Robot 5 delivers the shot blasting gun to the surface to be cleaned, to each point of the camera’s working space along the surface of the body 3. At this moment time, the shot blasting apparatus 10 forms a stream of shot, which, falling on the surface of the assembly or part, cleans it of corrosion products, as well as of the remnants of the old coating. The used fraction can enter the receiving hoppers of the shot blasting apparatus for reuse. After the cleaning program is completed, the bridge-type robot stops and the feed is stopped. Next is the formation of a report using a microcomputer, which reflects the amount of material used, cleaning time, a description of a three-dimensional surface and storing it in a database for further control of the robot 5, without using a vision system 6. Management of the executive mechanisms of the complex can also be performed in manual mode.

The technical result of the claimed utility model is due to the fact that it allows a high degree of cleaning of mechanical parts and assemblies of complex configuration in automatic mode. The vision system allows you to distinguish between cleaning objects, which makes the shot blasting machine universal.

Claims (2)

1. An automated complex for bead-blasting cleaning of bodies of rolling stock of railways, containing a bead-blasting chamber, inside which there is a robot with a bridge structure, which moves the nozzle of the bead-blasting apparatus in the longitudinal, vertical and horizontal directions depending on the configuration of the surface being cleaned along a given path generated by the numerical control system in accordance with a pre-recorded program, characterized in that the complex is supplemented by a preliminary three-dimensional scanning, which automatically generates program peening depending on the shape of the geometric surface cleaned articles. 2. The automated complex according to claim 1, characterized in that the preliminary three-dimensional scanning system is made in the form of two scanning modules located on both sides of the shot blasting chamber on a movable monorail base, each of which contains a digital video camera, a laser module and a microcomputer, and It works on the principle of active triangulation with the formation of a digital three-dimensional model of the body being cleaned.

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