SU1662794A1 - Apparatus for automatic assembly and welding - Google Patents

Abstract

The invention relates to welding, in particular to installations for the manufacture of a pipe bend. The purpose of the invention is the expansion of technological capabilities by ensuring the assembly and welding of the bend of the pipeline. The installation contains base-mounted mounting mechanism with lugs 4, cutting and welding heads. The installation is equipped with gripping mechanisms 6 and 11 with an axis of rotation each mounted on either side of the longitudinal axis of the fastening mechanism. The axes 19, 20 of rotation of the mechanisms 6, 11 are inclined to the axis 23 of the fastening mechanism. Axes 21, 22 of the gripping mechanisms 6, 11 are perpendicular to the axis 23. The working plane of the cutting head is inclined to the axis perpendicular to the axis 23. The tilt angles of the axes 19, 20 of rotation of the gripping mechanisms and the working plane of the cutting head are equal. This provides increased productivity and quality of the finished product. 3 il.

Description

The invention relates to welding, in particular to devices for the manufacture of a pipe bend used, for example, in gas engineering.

The purpose of the invention is the expansion of technological capabilities by ensuring the assembly and welding of the bend of the pipeline.

FIG. 1 - installation, general view; in fig. 2 - the same, on an enlarged scale; in fig. 3 shows section A-A in FIG. 2

The installation consists of a bed 1, a bunker device 2 with a piece-release mechanism, a mechanism for securing the workpiece 3, a spring-loaded stop 4, a mechanism for mounting a cutting head 5 of a mating type for cutting the pipe at an angle, a gripping mechanism 6 with rotational drive from the pneumatic cylinder 7 through the rail and a gear wheel 8, connected by a chain drive .9 through clutch 10, having 180 ° free play,

with the second gripper 11, on the axis of rotation of which a copier 12 is mounted, connected to the welding head 13, a pulley of the return mechanism 14, connected by a cable 15 to the pulley 16. rigidly connected to the torsion spring 17, the receiving container 18.

The rotation axes 19, 20 of the gripping mechanisms 6, 11 are respectively inclined to the longitudinal axis 21 of the fastening mechanism, the working plane of the cutting head 5 is inclined to the plane perpendicular to the longitudinal axis 21 of the fastening mechanism. The angles of inclination of the working plane of the cutting head 5 and the axes of rotation 19, 20 of the gripping mechanisms are equal (in the example described, this angle is 45 °).

The gripping axes 21, 22 of the mechanisms 6, 11 are perpendicular to the longitudinal axis of the fastening mechanism.

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The gripping mechanisms 6, 11 are located on either side of the longitudinal axis 23 of the fastening mechanism and the cutting plane,

The installation works as follows.

From the bunker device 2, the pneumatic cylinder of the feed mechanism 3 in the open grippers of the gripping mechanisms 6, 11 moves the workpiece to the spring stop 4, is fixed in the grippers of the mechanisms 6, 11, the fastening mechanism returns to its original position, after which the cutting head 5 performs cutting of the pipe under angle of 45 °. Since after cutting between the two halves of the pipe there is a gap, then after the head moves away from the cutting tool, the gripping mechanism 6 is detached and after the part of the pipe is pushed until it touches the other spring stop 5 of the fastening mechanism, the workpiece is fixed again by the clamp 6, after which the pneumatic cylinder is given a command 7, which through a pinion gear and gear 8 rotates one section of pipe parts with a gripper 6 at an angle of 180 °.

The clutch 10 is made so that when turning the pipe with the capture mechanism 6 to 180 °, it has a free course, i.e. the second capture mechanism 11c with the other half of the pipe is in place. After the two halves of the pipes are aligned at an angle of 90 °, the coupling 10 comes into operation. From this point on, the assembly of pipes assembled at an angle of 90 ° rotates around the axis of the junction of the two pipes. From the moment the assembly rotates, the welding head 13 is connected, connected to cam 12, which welds the joint of two pipes, moving radially from the cam when the assembly is rotated through an angle of 365 °.

In JTOT, the same time, a pulley 14 with a cable 15 winds a torsion spring 17.

After the end of welding, the grippers of mechanisms 6, 11 are detached and the part is ready.

falls into the receiving container 18.

During the return stroke of the pneumatic cylinder 7, the system with the gripper 6 returns to its original position. Torsion spring 17 through pulleys 14,16 with cable 15

returns the gripper mechanism 11 to its original position. The cycle is repeated.

The machine eliminates manual labor, ensures an increase in labor productivity and the quality of pipe bending.

Claims (1)

An apparatus for automatic assembly and welding of products comprising a base mounted on the base with a cutting and welding head, a mechanism for securing the workpiece, characterized in that, in order to expand technological capabilities by providing assembly and welding of a pipe bend, it is equipped rotary gripping mechanisms with the axis of the grip and the axis of rotation for the pipe, the gripping mechanisms are mounted on the frame on either side of the longitudinal axis of the mechanism of fastening and on both sides of cutting zones, zhrat axes of gripping mechanisms are perpendicular to the longitudinal axis of the mounting mechanism, rotation axes of the gripping mechanisms are inclined to the longitudinal axis of the mounting mechanism, the working plane of the cutting head is inclined to the axis perpendicular to the longitudinal axis of the mounting mechanism, while the angles of the gripping axes of gripping mechanisms and the working plane of the cutting head are equal. 13  pe fig 2 15 .