RU192902U1 - SUPPORTING DEVICE FOR RECONSTRUCTIVE LASER SUPPLY OF COMPLEX FORM PRODUCTS - Google Patents

Abstract

The utility model relates to equipment for laser processing of parts and assemblies of machines and mechanisms, is a supporting device for reconditioning laser surfacing of large-sized products of complex spatial forms, provides the ability to install parts at the required angle using the mounting mechanism with an angular marking in increments of 1 degree, as well as uniform weight distribution of the restored part. It can be used in various fields of mechanical engineering for repair and restoration work, including repair of turbine blades, crankshafts. The technical result of the claimed utility model is the creation of a support device for reconditioning laser surfacing of complex shapes. The device provides the ability to install parts at the required angle using the mounting mechanism with an angular marking in increments of 1 degree, as well as uniform distribution of the weight of the restored part. The technical result is achieved due to the fact that the supporting device for reconstructing laser surfacing of complex products includes a support structure with the console on which the movable platform is mounted, mounted on linear bearings and rigidly connected using a conductor with two-coordinate th table setting laser cladding, with disposed thereon mechanism mounting the blade.

Description

The utility model relates to equipment for laser processing of parts and assemblies of machines and mechanisms, is a supporting device for reconditioning laser surfacing of large-sized products of complex spatial shapes, provides the ability to install parts at the required angle using the mounting mechanism with an angular marking in increments of 1 degree, as well as uniform weight distribution of the restored part. It can be used in various fields of mechanical engineering for repair and restoration work, including repair of turbine blades, crankshafts.

The device provides reliable fixation of the product of complex shape and large dimensions and works in conjunction with the coordinate table of the selective laser surfacing installation, allowing laser surfacing at various angles relative to the nozzle supplying the powder mixture for surfacing. To accomplish this, the design must provide an accurate step of the angle of surfacing, as well as moving the product in four coordinates.

In patent RU 144469, a device for laser powder surfacing is provided with a tube for lateral supply of powder with subsequent deposition on the part. The device is equipped with a system for securing and moving the part to be surfaced. The part is located in the center of the device for surfacing and moves in the redistribution of the dimensions of the device.

In the patent RU 158543, the laser head itself moves in four coordinates, and the part to be surfaced remains stationary. The utility model relates to a node for supplying a laser beam and a gas-powder jet as a part of an installation for gas-powder laser surfacing and does not solve the problem of fixing and positioning parts of complex shape and large dimensions.

Known patent RU 2676064, in which the ability to move the part is absent, and surfacing is carried out on the part by deflecting the nozzle with the powder. Moreover, the present invention is not directly oriented to reconditioning laser cladding of large parts such as turbine blades.

In patents RU 2580180 and RU 2447979 devices are not suitable for reconstructing surfacing of turbine blades, the disadvantage is the lack of devices for securing the product being surfaced, as well as its movement at the time of the implementation of reconditioning laser surfacing.

The closest device is presented in patent RU 142124 (B23K 26/08, published June 20, 2014), according to which a laser with a three-coordinate positioning system is mounted on two parallel electric lifts mounted on a movable platform. The platform is equipped with a wheel system with locking racks. To the machined large-sized part or equipment unit, the installation moves in a horizontal plane on a movable platform on wheels and is fixed by stop racks. Using two electric lifts, the laser is positioned along the vertical axis in the machining zone of the part, and the laser is moved in the machining zone and the laser beam is automatically focused using the three-coordinate mechanism for positioning the laser head by the control unit. After the work is completed, the installation turns off, is removed from the locking racks and moves to the next place of work. This imposes restrictions when changing the working area of surfacing, as each time it is necessary to adjust and position the product relative to the laser beam. In addition, it is impossible to deposit powder in several layers, which in turn can adversely affect the mechanical properties of the product. It should also be noted that in this way it is possible to carry out surfacing on parts with mass restrictions and without the possibility of setting the angle of surfacing.

The technical result of the claimed utility model is the creation of a supporting device for reconstructive laser surfacing of products of complex shape. The device provides the ability to install parts at the required angle using the mounting mechanism with angular marking in increments of 1 degree, as well as uniform distribution of the weight of the restored part.

The technical result is achieved due to the fact that the supporting device for reconstructive laser surfacing of complex products includes a support structure with a console on which a movable platform is mounted, mounted on linear bearings and rigidly connected by a jig to a two-coordinate laser surfacing installation table, with on it with a blade attachment mechanism.

The claimed technical solution makes it possible to increase the accuracy of positioning by accurately practicing the movements of the mechanism for moving the table for setting up the laser surfacing, increasing the rigidity of the structure, eliminating undesirable vibrations and evenly distributing the mass of the part being surfaced.

The inventive device is shown in Fig. 1 and includes the following components: a support structure 1, a console 2, on which a movable platform 3 is mounted, mounted on a console 2 on two pairs of linear bearings 4. The movable platform 3 is connected by a conductor 5 to a two-coordinate laser surfacing table 6, with a mechanism located on it blade attachment 7.

The device operates as follows. The large-sized part to be machined is fixed at the required angle using the angular scale of the mechanism 7, rigidly fastened to the two-coordinate laser surfacing table 6, the conductor 5 transmits the movements in four coordinates to the movable platform 3. The platform 3 moves in a horizontal plane on linear bearings 4, thereby making movements oversized part during its restoration surfacing in accordance with the algorithm specified from the installation.

Execution example.

At the Research Center "Kurchatov Institute" - CRI KM "Prometey" a support device was created for reconstructive laser surfacing of complex products with integration into the laser cladding LENS 750 Optomec (Fig. 1). Due to the precise positioning of the part (with an accuracy of 1 degree), laser tungsten carbide reduction welding on worn sections of a turbine blade made of VT6 alloy was successfully carried out.

List of sources used

[1] Shishkovsky I.V. Laser synthesis of functional gradient mesostructures and bulk products. M .: Fizmatlit, 2009 .-- 424 p.

Claims (1)

Supporting device for reconstructing laser surfacing of complex shaped products, containing a supporting structure with a console on which a movable platform is mounted, mounted on linear bearings and rigidly connected by means of a jig to a two-coordinate laser surfacing installation table, with a blade mounting mechanism located on it.

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