SU1433677A1 - Grip for pulsed feed of electrode wire - Google Patents

Abstract

The invention relates to equipment for electric arc welding, in particular, to devices for pulsed supply of electrode wire in automatic welding machines and semiautomatic devices. The purpose of the invention is to increase the reliability of capture in the work and expand its functionality. For this purpose, fingers 3 are installed in the pulse feed wire, which has a housing 1 with inclined grooves 2, on which separators 4 are hingedly mounted, connecting at least two pairs of feeding cylindrical rollers 5. In the housing there is a guide sleeve 6 and a sleeve 7 in which the rod 8 is located with the pusher 9. A spring 10 is placed between the pusher and the sleeve 7. The housing is closed on both sides with screws, which are fastened to it with screws. The hooks contain two symmetrically grooves 13. Increasing the number of contacts The elements placed in the separators, which, due to the hinged attachment of the housing, automatically come into contact with the supplied wire, increase the reliability of the grip and allow the impulse supply of not only steel, but also soft aluminum wires. 2 Il. S s

Description

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The invention relates to equipment for electric arc welding, in particular to devices for pulsed supply of electrode wire in automatic welding machines and semiautomatic devices.

The purpose of the invention is to increase the reliability of the grip in operation and to expand its functional capabilities to me,: FIG. 1 shows the grip for pulse supply of electrode wire and longitudinal section; FIG. 2 is the same, top view,

 In case 1 with inclined grooves 2, papillaries 35 are placed on which separators 4 are mounted, which contain two or more pairs of feed cylinders 5, housing 1 contains guide sleeve 6, and also sleeve 7j in which the role of rod is placed 8 with U-shaped pusher c. Between the latter and the sleeve 7 there is a spring 10 “Case 1 on both sides closed by screws 11e, which are attached to case 1 by screws 12 Kruzplki ki 11 contain two symmetrically located notches 13; The device operates as follows |

; Pulling the hollow rod 8 together with: U-shaped pusher 9 and compressing the spring 10, pushing the welding wire 14 to the ground with the feed rollers 5; Yaletsi 3 in the inclined slots 2 of the body: 1 move in the direction of the compressed spring 10s and carry the separators 4, which, when moved, remove the feed rollers 5 from the wire. The wire will be finished after passing the feed cylindrical rollers 5,

After releasing the hollow stem 8 under the action of the springs 10, it moves together with 11 pushers 9 to the left, with its ends coming into contact with the fingers 3, moving them in the inclined prices 2 of the housing 1 together with the separators 4 until the feed rollers 5 no contact with the wire 14

When the pulse motor is running, the housing 1 moves to the right. At the same time, under the action of force

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10, transmitted through the U-shaped pusher 9, the fingers 3 move in the slots of the grooves 2, dragging the separators with the rollers 5, which wedge the wire 14 and mix the axle in the direction of movement of the housing 1.

Due to the possibility of swinging the separators 4 around the fingers 3, all the feeds are simultaneously brought in; their rollers 5 are attached to the wire 14, which reduces the specific pressure on the wire surface and makes it possible to supply not only steel, but also aluminum wires. This extends the capture functionality.

During the reverse movement of the housing 1, the fingers 3, moving in the inclined grooves 2, move away from the axis of the wire 14 together with the separators 4 and the feed rollers 5. The wire 14 is wedged and stopped.

To replace the feed rollers 5 without disassembling the gripper, the separators 4 are rotated around the fingers 3 until the rollers 5 coincide with the recesses 13 of the loops 11. In this case, the rod 8 moves to the extreme right position.

The proposed gripper design for the pulsed wire feed improves the reliability of operation and also extends its functional capabilities.

Claims (1)

Invention Formula A gripper for pulsed supply of electrode wire, comprising a housing with inclined guides and gripping elements arranged in the form of cylindrical rollers and a pressure element, characterized in that, in order to increase the reliability of gripping and expand its functionality, at least two pairs the gripping elements are mounted in separators in which the fingers are hingedly placed in contact with the inclined guides of the housing. 12 FIG 2