SU1380888A1 - Apparatus for arc electrostatic welding - Google Patents

Abstract

The invention relates to capacitor-arc welding and can be used in electrical engineering for welding central output to the sockets of general-purpose lamps. The aim of the invention is to improve the quality of welding. The lever 7 moves the lever 6 of the welding head 2. The current-carrying electrode 4 is placed on the central current terminal. Lever 6, while continuing to move, presses the lead by the current-conducting electrode 4 and brings the non-melting welding electrode 3 closer to the end of the current lead. Microswitch 10 is turned on, and at the moment of contact, a non-melting electrode 3 and a current lead flow, the discharge current flows, which melts the lead and welds it to the contact washer. 4 il. &

Description

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The invention has been designed for arc capacitor welding and can be used in electrical engineering primarily for welding central current input to the sockets of general-purpose lamps.

The purpose of the invention is to improve the quality of welding.

FIG. Figure 1 shows a device for arc capacitor welding of a central current input with a base of general purpose lamps (LON); in fig. 2 - basement part of the lamp pack

rum current input 19 and the associated inability to weld it into the hole and provide an electrical connection between the current input 19 and the hole in the contact washer 17.

The device works as follows.

When the cam is rotated at a predetermined angle, the movement of the stand 1 with the device nodes fixed on it starts towards the light bulb until the stop 9 comes close to the base (Fig. 3). Rack movement ceases (Fig. 4a,

general purpose pouring; on fig.Z - 15 moment t). The lever 8 begins the transposition of the elements of the device during arc welding of the central current input to the sockets of the general-purpose lamps; in fig. A - cyclogram of the device.20

A device for arc capacitor welding of a central current input consists of a rack 1 mounted on a slider, which is an accessory of the automaton (25 is not shown in Fig. 1), a welding head 2 with non-consumable welding 3 and spring-loaded current-conducting A electrodes mounted on a co-displacement - lever 6 cnapoMHoii holop 2 (Fig.46).

During this movement, the current-5 supply electrode 4 is placed on the central current input (Fig. 3 and 4c, moment t), bent at the position of the input preparation. In this case, the lever 6 continues to move, releasing the protrusion 7 with the current-carrying electrode 4, pressing them into the contact plate 17 and bringing the non-melting electrode 3 close to the end of the current loop (Fig. 4b). At the same time, at time t (Fig. 4d), the pressure plate i 12 in the switching head 2 can interchange the microswitch

The voltage of the pre-battery is the capacitor of the welding head. This occurs at time 1 (by the end of an electrode using electrode 3, yes (fig. 3g).

The axle 5 together with the two shoulders lever 6 with the protrusion 7 and the curved guide groove at the end of the two shoulders with the roller 8 of the limiting stop 9 located in the guide 10, the microswitch 11 and the pressure bar 12 associated with p1) hchagom 8.

The base part (Fig. 2), located under the device for welding the central current output, consists of a collar 13, which in special mastic 14 is connected to the bulb 15. A contact washer 17 is connected to the insulating glass 16 with a collar. Lamps: side 18 and center 19 19 are connected to the steel shell 13 of the base and the contact washer 17 by welding, respectively. In this case, the central current input 19 to the position of the preparation for welding comes through the hole in the contact washer 17.

The difficulty of welding the central current input 19 to the contact washer 17 and the base of the LON consists in a significant excess of the diameter of the hole in the contact washer 17 over the diameter 5 (moment t). Lever 8 begins pe-

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displacement of the lever 6 cnapoMHoii holop 2 (Fig.46).

During this movement, the current-5 supply electrode 4 is placed on the central current input (Fig. 3 and 4c, moment t), bent at the position of the input preparation. In this case, the lever 6 continues to move, releasing the protrusion 7 with the current-carrying electrode 4, pressing them into the contact plate 17 and bringing the non-melting electrode 3 close to the end of the current loop (Fig. 4b). At the same time, at the time t (Fig. 4d) of the pressure plate i 12, the voltage of the pre-charged capacitor bank is applied to the ground: electrodes of the welding head. This stage ends at time 1 (fig. 4b) by touching electrode 3 to the end of the current lead (fig. 3g).

At the moment of contact, the discharge current begins to flow through the contact between the non-consumable electrode 3 and the current input. The current input is melted down and welded to the contact washer 17. Thereafter, in accordance with the cyclogram in Fig. 4, all the mechanisms return to their original position. After time T, the cycle is repeated.

One of the most important parameters of the device for arc welding of a central current input to sockets LON is the angle of inclination of the non-consumable welding electrode with respect to the current-carrying electrode. This is due to the mechanical effect of the welding arc on the molten metal of the current input, namely, with a significant inclination The welding electrode by the reactive pressure of the arc of the ball at the end of the current inlet is blown off along the plane of the contact washer, not pressed against it, respectively, a welded joint is not formed.

The range of optimal angles between the axes of the welding electrode and the contact washer is.

Claims (1)

Invention Formula A device for arc capacitor welding, and, mainly, a current output with a base of general-purpose lamps, containing a rack with a drive placed on it, a two-electrode welding head and a microswitch with springs different from that, to improve the quality of welding, the device is equipped with 1 with a guide, a limiting stop and two two shoulders of 2Q of periodic interaction with chagas, one of which is made with a protrusion. / 4t five a protrusion and a curved guide groove at the end and placed on the guide, and the other is provided with a roller and placed on a rack for movement along the specified groove of the first lever, while the welding head is placed at the free end of the first lever, the free end of the second lever is mounted with the possibility of interaction with the drive, one of the electrodes is made as a current lead, is spring-loaded relative to the stand and marked on the welding head in a plane perpendicular to the welding electrode, and the limiting stop is placed It is placed in a guide parallel to the current-carrying electrode, which, in turn, is installed with the possibility of FIG. 2