SU597528A1 - Spot microwelding set - Google Patents

Description

one

The invention relates to the field of ultrasonic welding and can be used in the electronic and electrical industry, for example, for welding

Aluminum flat fusible elements with contact knives of fuses.

A well-known micro-welding machine, containing two welding heads, each of which is mounted on a slider, is performed by a straight-line movement under the influence of a flj actuator.

Such an installation does not allow welding of internal surfaces.

Also known is an installation for spot micro-welding, comprising two welding tools placed on levers that interact with compression drives f2j

These installations do not allow to obtain a high-quality connection of parts, for

welding of which are used acoustic systems with flat welding tools, since they do not have a device that ensures the constancy of the parallelism of the plane of contact for welding

parts and tool face at the time of welding, when changing the size of the welded parts and tool wear.

To improve the quality of welding by PU. -Em, to ensure the parallelism of the plane of the parts to be welded and the planes of the end faces of the welding tools independently

sizes of parts to be welded and tool wear, the proposed device is equipped with two; 1-water carriages mounted with the possibility of oncoming movement in a direction parallel to the direction of compressive force, and the levers are equipped with individual axes mounted on said carriages.

FIG. 1 depicts the described installation; in fig. 2 is a view along arrow A in FIG. one; in fig. 3 - section bb FIG. one; in fig. 4 - welded parts

Claims (2)

The installation includes two loudspeakers 1, with welding tools, mounted on two levers 2, the swing axes of which are located on carriages 3, which can move independently along the direction of the dovetail type while rotating two screw gears using the handle 4; two brackets 5, which are secured by nat-carriages 3; two ti gi 6, which are pivotally connected to the levers. 2 and pass through the holes in the brackets 5; two glasses 7 and two threaded bushings 8, inside which springs 9 are located, drive a compression drive, while the welding pressure is controlled by rotating the sleeves 8 and is controlled by the scale applied to the glass 7; two face cam. 10, which retracts the speaker systems 1 from the parts to be welded with the help of rollers 11 attached to the levers 2; shafts 12 and 13, which are soy;:; ipbny between themselves. telescopically, which allows the carriage 3 to move without disrupting the connection between the shafts; pneumatic cylinder 14 mounted on one of the carriages 3, the piston of which serves to rotate the shafts 12 and 13 on 9OO in one or the other direction through the lead 15, due to which clamping tools of the acoustic systems 1 to the parts being welded are performed the compression ratio of the springs 9, or the reduction of the welding pressure. The installation works as follows. The parts to be welded, consisting of two contact blades 16 and a fusible element 17, are placed in the tool. At the same time, by turning the knobs 4 connected to the chassis screws, the carriages 3 move, set the size between the welding tools of the speaker systems 1, corresponding to the distance between the lines of the cables located on both sides of the inner surfaces of the element 17. At the same time, the tool ends should be parallel to the contact planes of the parts to be welded at the moment of application of welding pressure. After that, the pneumatic cylinder 14 acts on the shafts 12 and 13 sec. Of the cam 1O, and the springs 9 rotate the levers 2 and press the instruments of the speaker systems 1 to the parts to be welded. Further, include ultrasonic generators, and welding takes place. At the end of the welding cycle, the cams 1O retract the speakers 1, and the parts move a step. This cycle is repeated until the required number of points has been welded. In the transition from welding on internal surfaces to welding on external surfaces, it is necessary to rotate the speaker systems 1 by 180 °, and replace the compression springs 9 with tension springs. The formula is a recipe and a point for micro-welding, mainly ultrasonic, containing two welding tools placed on levers that interact with compression drives, in order to improve the quality of welding by ensuring the parallel plane of the parts to be welded and the end faces welding tools, regardless of the size of the welded parts and tool wear, the installation is equipped with two drive carriages, mounted with the possibility of oncoming movement in the direction lenii parallel to the direction of compression force, and the levers are provided with individual axes mounted on said carriages. Sources of information taken into account during the examination: 1, Japan Patent hfe 1О059, cl. 12 B 111.4, 1967. 2. US Patent No. 3368054, cl. 2198, 1968. W 12 FIG. 3 sixteen / 17 / -E FIG. four