SU914440A1 - Apparatus for automatic feed of articles into welding zone - Google Patents

Description

The invention relates to industrial vehicles, and in particular to devices for automatic feeding of parts to a pot of welding.

A device is known for automatically supplying parts to the welding zone, which contains a magazine equipped with a cutter, a mechanism for fixing parts during welding and a powered feeder for transferring parts from the cutter to a mechanism for fixing parts during welding, in which a part comes from the magazine to the feeder and moves them in the welding zone G1].

Due to the fact that parts loosely lie on the feeder, it is impossible to apply high speed on the working strokes of the feeder due to the possibility of displacement of parts during their movements.

In addition, the known device is designed to automatically feed ’into the welding zone of such parts as a rod with a washer, and does not allow automatic feeding to the zone

2

welding parts such as a rod with a head and a hollow cylinder with a core with a central hole having a height smaller than its diameter.

The aim of the invention is to increase. reliability and performance of the device when supplying parts such as a rod with a head and a hollow cylinder having a height that is smaller than its diameter, which is in conjugation with it.

The goal is achieved by the fact that the magazine is made in the form of a tray having support surfaces for each part, located at different levels, and a nozzle for supplying compressed air is located at the entrance of the tray, and the cutter is installed at the output section of the tray at a distance equal to the stroke of the pusher , in the direction / opposite to the direction of supply of the part from the mechanism for fixing the parts to the welding, which consists of two spring-loaded strips, hingedly strengthened3 914440 4

on the tray above its upper supporting surface.

FIG. 1 shows a device, a longitudinal section; in fig. 2 is a section A-A in FIG. one; in fig. 3 shows a section BB in FIG. one.

The device comprises a closed tray 1 having an upper bearing surface 2 for transporting a hollow thin-walled cylinder 3 with a central hole and with a height less than the diameter, and a lower supporting surface 4 for transporting the rod 5 with a head. The distance between the support surfaces TYTMY 2 and 4 is chosen so that the rod with the head, passed through the central hole of the hollow cylinder is in constant engagement with it.

The side guides of the tray 1 provide the geometrical permeability of the part transported at the top level. At the input end of the tray 1 is installed pipe 6 for the supply of compressed air in its longitudinal line.

Near the exit end, in the side guiding walls of the tray 1, there are movable spring-loaded supports 7 for a part 3 transported to

. upper level, partially protruding into the transport highway.

The supporting surface 4 projects beyond the supporting surface 2 and approaches the lower electrode 8 of the welding machine, the upper end surface of which is located slightly below the supporting surface 4.

The support surface 2 fits into the ends of the clamping jaws of the welding device (not shown).

The upper surfaces of the clamping jaws are located at the level of the supporting surface 2 and serve as a platform for the part to be transported at the upper level.

Before the stops 7, in the direction of movement of the parts, the lid of the tray 1 has a slot, which includes the grip 10 of the feeder 11 mounted above the tray 1.

The grip 10 is freely fixed on the axis 12 and can be in the working extreme position behind the vertical axis of the electrodes of the welding machine and in the initial position in front of the stops 7 in the direction of movement of the parts.

For fixing the cylinder 3, transported at the top level, relative to the nests of the clamping jaws of the welding

adaptations to the electrodes of the welding machine on the side guides of the tray 1 on its output section are pivotally attached pressure upper directions *

§ 13 slats 13, Slats 13 are preloaded with springs 14, provided with a bevel 15 on the part entrance side and partially: overlap in height the flow area of tray 1 for cylinder 3 transported along support surface 2.

To control the process of moving parts for welding, tray 1 has limit switches and other pneumatic equipment (not

15 are shown).

The device works as follows.

Details such as a rod 5 with a head connected to a small gap in conjugation with a hollow thin-walled cylinder 3 with a central hole and with a height less than the diameter come in one assembly or in portions to the supporting surfaces 4 and 2 of tray 1, respectively. For

25 moving them to the working area of welding includes a pneumatic system. Parts of compressed air leaving the pipe 6, are moved to the stops 7.

Simultaneously with the movement of parts

₃ 0 along the tray 1, the feeder 11c gripping 10 makes a working stroke without parts in the direction of the electrodes of the welding machine, freely passing in the gap between the pressure guide bars 13.

During the reverse course of the feeder C after it leaves the welding machine under the electrode, the upper electrode also makes a working stroke, but there is no part in the welding position.

_4o Upon further movement of the return stroke of the feeder 11, the gripper 10 meets the hollow cylinder 3 on its way and turns it on axis 12 until it jumps over the wall of the cylinder 3 and

/ sink into its internal cavity. This position is the extreme initial position of the feeder 11, which it occupies during the welding process.

At the upper extreme position · The top 50 of the welding machine electrode, according to the control signal, the feeder 11 performs the next working stroke.

When this grip 10 is included in the coupling with the inner surface of the wall psi

55 logos of cylinder 3 and overcoming effort

the springs of the movable stops 7, embeds

them in the side guides of the tray 1 and pulls the hollow cylinder 3,

5 914440 6

and with it the rod 5 with the head under the action of the movable stops 7.

After further movement, the gripper 10 of the feeder 11 moves the hollow cylinder 3 with the supporting surface 2 to the supporting 5 areas of the clamping jaws (not shown) of the welding device.

At this time, the clamping jaws are unclamped and the rod 5 with the head, moving along the supporting surface 4, passes freely between them.

Moving on the support area of the clamping jaws and the support surface 2, the hollow cylinder 3 interacts with the bevel 15 of the upper pressure guide 15 lower bars 13.

The slats 13 are pressed in the direction from the supporting area of the clamping jaws and during the whole further movement of the hollow cylinder they ensure a tight fit to the supporting area and prevent it from arbitrary longitudinal movement.

In this position, the rod 5 with the head takes up a position relative to the machining position relative to the hollow pi-25 lindra.

After that, the feeder 11 moves to its original position. When withdrawing, the gripper 10 jumps diametrically opposite the side wall of the hollow cylinder and drops over the side wall of the subsequent part.

Simultaneously with the departure of the feeder 11 to the initial position of the sponge of the welding device _{35, they} are compressed, covering the rod 5, which centers the hollow cylinder 3. The laths 13 press the hollow cylinder 3 to the supporting areas of the jaws. ₄₀

When moving the upper electrode (not shown) down it comes into contact with the end of the rod 5 with the head and the welding process is carried out.

When returning the top electric ⁴ 5

yes, in the initial position, the feeder 11 begins the working stroke and at the same time the sponges of the welding device are unclamped

, of the meeting.

The parts supplied by the gripper 10 of the feeder 11 to the welding position push the welded assembly from the operative area of the welding fixture. Then the cycle repeats.

Such an embodiment of the device for the automatic feeding of parts into the welding zone makes it possible to increase its reliability, labor productivity and equipment, improve working conditions, and also obtain an economic effect of 3.5 thousand rubles. from using one device in production.

Claims (1)

Claim A device for automatically feeding parts into the welding zone, containing a magazine equipped with a cutter, a mechanism for fixing parts during welding and a powered feeder · for feeding parts from the cutter to a mechanism for fixing parts during welding, characterized in that, in order to increase reliability and productivity when supplying parts such as a rod with a head and a hollow cylinder with a pair in it that has a height smaller than its diameter; the magazine is made in the form of a tray having support surfaces for each parts located at different levels, with a compressed air supply pipe located at the inlet section of the tray, and the cutter is installed at the outlet section of the tray at a distance equal to the pusher travel in a direction opposite to the direction of parts supply from the mechanism for fixing parts during welding, which consists of two spring-loaded strips, hinged on the tray above its upper bearing surface.