SU1248751A1 - Apparatus for feeding parts to be welded - Google Patents

Description

The invention relates to welding production, in particular, to the mechanization of the supply of tubular parts to an electrode unit for the production of welding in two diametrically opposite points.

The purpose of the invention is to increase productivity by self-fitting the parts to the welding position when they are moved to the welding position.

Fig. 1 shows the principal kinematic diagram of the device proposed; on. FIG. 2 is a view A of FIG. FIG. 3 shows the trajectory of the capture movement.

The device comprises a frame 1, on which a cam-lever mechanism is mounted, consisting of a driving cam shaft 2 and levers 3 and 4 of the drive. Ngtag 3 BsaiiMo- operates with a slider 5 placed in horizontal roller guides and equipped with a tension spring 6, and a lever 4 with a carriage 7 mounted in vertical roller guides fixed on the slider 5 and fitted with a spring of 8 points This and, On the carriage 7 by means of axis 9 a mechanism for gripping parts is fixed, consisting of a prism 10 ,. two shoulder presses 1I and compression springs 12 installed in the prism. At end 1, roller 13 is fixed, which interacts with emphasis on carriage 7. Axle 9 also has a double-arm lever 14, equipped with an extension spring 15 and roller 16, a lean contact with a rod 17 mounted in guide 18 mounted on the carriage 7, the rod 17 is provided with a roller 19, interacting with the bed I.

For welding patru-like parts. The suction side serves as an electric welding machine, for example, the type MPK-320 having a fixed 20 and movable 21 electrodes. The rotation of the camshaft is synchronized with the mechanism, 22 laying parts in the prism 10, as well as with the welding machine.

The device works as follows.

The pre-assembled two-piece part 22 of the type suction nozzle is initially loosely inserted into the prism 10 of the locking mechanism. When the shaft 2 rotates under the action of the stretching spring 6, the slider 5 begins to move towards the welding machine (1 movement section). At the same time, the guides I8 on the carriage 7, in which the rod 17 is mounted, move in the same direction. The rod 17 rolls in them, as a result of which the lever 14 rotates around the axis 9 and, accordingly, the locking mechanism rotates, including the prism 10, by 90, the part 22 is mounted coaxially with the movable electrode 21. At the same time, the clamp 11 presses the part in the prism 10 under the action of the compression spring 12. In the second part of the movement 1J, the slider 5 continues to move one hundred ;; the welding machine and the part 22 is put on the movable electrode 21. After that, the electrode 21 with the part in prism 10 is lowered down until the part 22 touches the stationary electrode 20, is clamped between the electrodes, after which the part 22 is welded at one point. After welding, the carriage 7 with part 22 and electrode 21 returns to its upper position, Slider 5 with carriage 7 under the action of the lever 3 is retracted until the beginning of the second movement section and extrudes the part from the electrode zone.

Further, when the lever 4 is rotated, the extension spring 8 is extended, the carriage 7 with part 22 moves downwards. The part is installed coaxially with the stationary electrode 20. By moving the slide 5 forward, the part is put on the electrode 20. At the same time, the electrode 21 is lowered down, the part is clamped and welded in a place diametrically opposite the first point. Then the gripping mechanism with the finished part returns to its original position, part 22 is removed from prism 10 and the cycle is repeated anew.

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Editor O. Bugir

Compiled by V. Klokov Tehred N. Bnsnalko

Order 4167/11 Circulation 1001Subscription

VNIITSH State Committee of the USSR

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

jCoppeKTop G. Reshetnik

Claims (1)

DEVICE FOR SUBMITTING PARTS FOR WELDING, containing a slider mounted on the bed, a carriage spring-loaded relative to the slide with a mechanism for gripping parts and a slide and carriage drive, made in the form of a cam-lever mechanism, characterized in that, in order to increase productivity by self-aligning the parts to the welding position when moving them to the welding position, a two-arm lever spring-loaded relative to it is hinged on the carriage to rotate the gripping mechanism to the working position, equipped with with a roller, while the carriage is equipped with guides and installed in them with the possibility of interaction with the bed and with the roller of the two shoulders of the rod with the roller to return the gripping mechanism to its original position, and the gripping mechanism is mounted on the two shoulders of the lever from the side ^ opposite to the place of attachment on it a roller. SU „„ 1248751 Fig. 1