RU1828791C - Thermal cutting machine - Google Patents

Abstract

Usage of the invention: for cutting oversized sheets and blanks. The inventive thermal cutting machine comprises a trolley 3 with a rod 2 and a cutter 1. The machine contains a frame 7 with longitudinal guides 8. On the longitudinal guides 8 are mounted movable transverse 10 guides on

Description

The invention relates to the thermal cutting of large sheets and billets, in particular to machines for thermal cutting of metals of large thicknesses (up to 1000 - 2000 mm) and can be used to cut U-shaped grooves mainly in the blanks of consumable electrodes for electroslag remelting.

The aim of the invention is to increase productivity by providing automation for cutting U-shaped configurations of different sizes.

The drawing shows a general view of a thermal cutting machine.

The machine contains a cutter 1, mounted on the rod 2, the rod 2 is placed on the trolley 3. On the rod 2 at the opposite end of the cutter 1 is a movable plate 4, fixed by a clip 5 with a copy sensor 6, a frame 7 with longitudinal guides 8 on which the carriages 9 are mounted with the possibility of moving along them with transverse guides 10 having a number of holes for the pins 11 of the U-shaped heads 12. In the U-shaped heads 12, additional longitudinal guides 14 having grooves are bolted 13 15, in which the thrust plates 16 are placed 17 with clamps 18. The sensor 6 is reacted with the plates 16 and 17 and is located on the travel bar 4 bar 2.

The thermal cutting machine operates as follows. The cutter 1 with the help of the rod 2 and the trolley 3 is installed at the intended place of the cut at the zenith of the workpiece (if it is round) or on the axis of the groove, while the movable plate 4 with the copy roller sensor 6 is also installed in the center between the plates 16 and 17 and fixed on the bar clamp 5;

U-shaped heads 12 are mounted on the frame 7 with transverse guides 10. The heads are mounted with pins 11 into the sockets, forming a hinge joint. Installs two guides 14 in the U-shaped heads and fastens them with screws; the guides 14 are installed at a distance defined by the size L of the width of the groove to be cut (or its neck at

the need to cut a groove in the form of a dovetail) and are fixed on the cross members with screws in the heads 12; the plates 16 and 17 are moved in the slots 15 of the guides 14 as follows; the plate 17 is first set to the cutting line and fixed by the clamp 18. The plate 16 is displaced in the opposite direction (relative to the plate 17) to the depth of the groove and is also fixed by the clamp. After that, the cutter 1 is withdrawn along the cutting line to the cutting point, ignited, and an automatic figured cutting cycle is activated;

the torch moves in the transverse direction (relative to the workpiece until the plate 16 comes into contact with the sensor 6, after which the perpendicular feed (longitudinal movement) is turned on until the action of the plate 16 on the sensor 6 is stopped. When leaving the plate 16 the lateral feed signal and the cutter will move until the plate 17 contacts the sensor 6, after which the reverse longitudinal feed will be turned on (the reverse sign is generated by a trigger or push-pull sensor) and the cutter will move into the longitudinal nom direction until the plate 17 will interact with the sensor 6;

after the sensor 6 leaves the plate 17, the torch feed is transversely turned on along the cut line to the exit.

As a sensor, for example, a typical BTP 211-24 type non-contact limit switch is installed in the copier roller.

Claims (1)

The claims A thermal cutting machine comprising a rod mounted on a trolley with a cutter at one end thereof, a frame with longitudinal guides mounted with the possibility of adjustable movement along the longitudinal guides, transverse guides, a copy element, a trolley movement drive, characterized in that the purpose of expanding technological capabilities by providing automation of the cut U-shaped configuration of different sizes, it is equipped with mounted on transverse rails with the possibility of adjustable movement no additional longitudinal rails mounted on the other end of the rod with the possibility of adjustable movement of the strap with a sensor for switching the drive of the truck, while the copy element is made in the form mounted on additional longitudinal guide plates, each plate is mounted on a corresponding guide with the possibility of longitudinal adjustable movement, and the sensor is mounted with the possibility of alternating interaction with the plates.