CS229282B1 - Apparatus for mechanized arc welding of noses on suspension tubes of the steam producers - Google Patents

Abstract

The purpose of the invention is to mechanize and automate arc welding of noses to suspension tubes of steam generators and thereby achieve high quality of welds and high productivity of work. The essence of the invention lies in the fact that the device is formed by a trolley system on a gantry track, while a chuck is placed on a fixed trolley, a motor-movable trolley with a motor has a clamping mechanism with a motor, which carries a movement mechanism with a motor and welding torches, a pair of wire feeders on a support, a nose feeder with a magazine and its motor, and a chuck is placed on a manually movable trolley, while the suspension tube is fixed between the chucks and the noses are stored in the magazine of the nose feeder. In an alternative embodiment, this device has a chuck on a fixed trolley stored in a motor-driven rotating mechanism with a motor, and a chuck on a manually movable trolley is stored in a free rotating mechanism. In another alternative embodiment, this device has a tube heating burner mounted on a motorized carriage.

Description

229282

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for mechanically arching nose-to-suspension tubes consisting of a trolley system on a gantry, wherein the individual trolleys are provided with mechanisms for fastening and rotating the tube. and feeding the welding burners, for feeding the noses to the pipe, for moving the pipes and for preheating the pipe.

Arc welding with coated electrodes or MIG is used to support the noses to the hanging tube. It brews with confidence and uses simple compositional ingredients for proper nasal distribution. In some cases, the suspension tubes are pre-heated by a local heat source prior to welding, which is displaced as desired over the entire tube. The advantage of this welding is the high workload, low power and thus low productivity of work. The quality of welded joints is dependent nasubjekte welder.

These disadvantages are largely eliminated by the invention. SUMMARY OF THE INVENTION The device according to the invention is characterized in that the device for mechanically bending the noses to the suspension tubes of the steam generators is formed by a trolley system on the gantry, with the trolley being fitted with a chuck, and a motor-driven clamping mechanism with an engine which does not have a motor-driven movement mechanism and torch burners, a pair of drone feeders on the support, a nose feeder with a reservoir and its motor, and a handwheel mounted on the manually movable carriage, wherein the suspension tube is fixed between the slides. and the noses are stored in the nose feeder tray. In an alternative embodiment, the rigid carriage on the rigid carriage in a motor-rotating mechanism is driven by a motor and on a hand-moving carriage, the carriage is stored in a free-rotating mechanism. In a further alternative embodiment, the device is mounted on a motor-driven trolley by a heater burner. An advantage of the device according to the invention is the automated welding of the noses in a tubular spacing, one-sided or two-sided. Another advantage is the high performance and productivity of the work and the high quality of the welded joints. The operator only ensures compliance and has a high level of safety at work.

In the accompanying drawing, an exemplary embodiment of a device for mechanically welding blades to the steam generator suspension tubes of the invention is shown in the accompanying drawing.

The device for the mechanized arc welding of the noses to the suspension tubes is formed by the shields 3 and the portal track 2, the movable carriage 5, the motor-movable carriage 9a, the manually movable carriage 21. On the fixed carriage S there is a motor-driven mechanism G of the tube 1 with the motor 7 to hold one end of the pipe 1 and the motor8. On the motor-movable carriage 9 with the motor 10 there is mounted a clamping mechanism 11 of the pipe 1 with a motor 12 which carries the moving mechanism 13 with the motor 14 and the welding torches 15. Furthermore, it carries a pair of drill feeders 16 on the support 17, the feeder with the reservoir 18 and its motor 19a the heating torch 28 of the pipe 1. On the manually movable carriage 21, the mechanism 22 of the pipe 1 is freely rotatable to grip the second end of the pipe 1. It is controlled by a control syllable (not shown) -stémom.

A tube 1 is mounted and clamped between the carriage 7 of the fixed carriage 5 and the funnel 23 of the manually movable carriage 21. Noses 2 are placed in the container of the carriage 18 of the nose carriage. The carriage 9 is moved into a proximity carriage 21 and the device is started. The control system of this device moves the motorized carriage 9 instead of welding the first nose 2 and stops. The engine 12 closes the pipe 1 with the clamping mechanism 11 and, at the same time, moves the welding mechanism 13 with the welding torches 12 to the pipe 1. The motor 19 extends the nose 2 from the feeder with the container 18 and presses the pipe 1. The MIG welding processes are started, the feeder wire feeder 16 feeds the ripple burners 15 and the motor 14 of the movement mechanism 13 starts to move in a directionally welding torch 15 which laterally wraps the nose 2 to the pipe 1. Then the motor 14 of the movement mechanism 13 stops, the motor 19 returns the nose feeder with a magazine 18 to the starting position, and the motor 12 releases the clamping mechanism 11 of the tube 1a simultaneously from the tube 1 and at the same time separates the welding torches 15 from the tube 1. Motor 8 of the rotary mechanism 6 rotates through 180 ° and the motor 10 moves the motorized carriage 9 At the same time, the motor 14 of the motion mechanism 13 returns the welding torches 15 to the initial position. In this way, the operating cycle of the device is repeated until the last nose 2 is welded, whereby the control of the running device stops. After releasing the chucks 7 and 23, the welded nose tube 1 is deposited. In a similar manner, the control system is able to weld noses 2 unilaterally or bilaterally to tube 1 on the tube. If necessary, the heating burner 20 is capable of locally preheating the pipe 1 prior to the nose welding.

Claims (3)

229282 PŘEĎME Claims 1. An apparatus for mechanically arching nose-to-hinge tubes of a generator, which is formed by a trolley system on a gantry track, characterized in that it comprises: a. a gripper (7) is placed on the rigid carriage (5) to hold one end of the tube (1), a clamping mechanism (11) with a motor (10) is mounted on the motor-driven carriage (9) with the motor (10) 12), which carries a movement mechanism (13) with a motor (14), a welding torch (15), a pair of wire feeders (16) on the support (17), a nose feeder with a cartridge (18) and its motor (19) and on the hand-movable carriage (21) there is a slide (23) for holding the second carcass (1). VYNALEZU 2. Apparatus for mechanically arching noses to steam-generator suspension tubes according to claim 1, characterized in that on the fixed carriage (5) the chuck (7) is housed in a motor-driven rotary mechanism (6) with a motor (8) and hand-operated. the moving carriage (21) is a chuck (23) in the free rotary mechanism (22). 3. Apparatus for mechanically arching nose nipples to pendulum tubes of points 1 and 2, characterized in that a heating burner (20) of the tube (1) is attached to the motor-movable cylinder (9). 1 sheet of drawings