SU418298A1 - WELDING MACHINE - Google Patents

Description

one

The invention relates to the field of semiconductor manufacturing and can be used in microelectronics for wireless assembly.

A welding machine is known that contains mechanisms for supplying welded parts, a multi-position rotary table mounted on a vertical shaft with welding heads, a cutting mechanism, a measuring device and an actuator.

The proposed welding machine differs from the well-known fact that the vertical shaft of the multi-position table is mounted on a carriage mounted with reciprocating movement in guides, interacting through a bracket and a double-arm lever with a cutting mechanism having a punch coaxially with the tool of the welding head and connected to driven through the provided camshaft, providing simultaneous movement of the punch and welding tool at the time of cutting module. Such an automaton design allows an increase in the productivity and accuracy of instrument manufacture.

FIG. 1 shows the kinematic diagram of the described welding machine; in fig. 2 - mechanism of oriented transfer and

welding; in fig. 3 shows a circuit for measuring the parameters of a module at a control position.

The welding machine (Fig. 1) consists of a tape feeding mechanism 1, a punching mechanism 2, a multi-position rotary table 3, a measuring device 4, a device feeding mechanism 5 and a drive 6.

The belt feed mechanism contains a coordinate table 7 with an actuator and a table for securing and fixing the transport belt with modules 8. The cutting mechanism has a fixed plate 9 on which the matrix is fixed, and movable plates 10 and 11. The plate 10 is equipped with catchers and a control sensor 12, and on the plate 11 is a puncheon 13.

A vertical shaft 14 of the turntable with welding heads 15 and tools 16 is mounted on a carriage 17 moving in the rails 18. A bracket 19 with a double-arm lever 20 is firmly attached to the carriage L.

The device 4 measures the parameters of the module before landing in the case and consists of probes 21 fixed in the case 22.

The device feed mechanism contains a coordinate table 3 on which a cassette 24 with instruments 25 is installed, and is intended for moving the cassette with instruments in x and y coordinates.

The actuator 6 moves the camshaft 26 with the cams 27 and 28 and the Maltese mechanism 29.

The automatic connection of the module leads to the legs of the case occurs in this sequence. On the coordinate table 7 {FIG. 1) mechapism of supplying the tape is set the table with modules 8. At the command of sensor 12, the module is automatically searched for and moved to the cutting position. The mechanism of the miogopositional rotary table 3 is then turned on, and the welding heads 15, together with the carriage 17, are lowered along the vertical guides 18 until the welding tool 16, which is at the cutting position, does not touch the conveyor belt with the module 8. The lowering and fixing are done the drive 6 from the cam 28 through the lever 30.

Simultaneously with the cam from the cam 27, the lever 31 is driven by the movement of the nit 11, on which the pin 13 is mounted, and the module is cut from the process tape.

At the moment of cutting, the movable plate 11 (Fig. 2) interacts with the lever 20 and drives the carriage 17. In this case, simultaneous simultaneous movements of the welding tool and the punch occur, and module 8 is clamped down on the two sides and retains its initial orientation .

Then the vacuum is turned on, and further upward movement of the welding tool 16 with the module 8 fixed on it is carried out from the lever 30 (Fig. 1) connected to the cam 28, and the turn is from the Maltese mechanism 29. In this case, the welding heads 15 together with the shaft 14 pivot about carriage 17.

Module 8, from the cutting position, is transferred to the measurement position and lowered onto the probes 21 (Fig. 3) of the measuring device 4 (Fig. 1).

If the “Fit” command is received, the nrnbor nodbor mechanism turns on, and at the same time a new housing of the device 25 moves to the welding zone, and when the welding tool 16 is lowered onto it, the module leads are welded to the legs of the device 25. At the command “Not suitable the module is reset when turning, and the instrument feed mechanism is not activated.

Above is the sequence of work of one welding head. In fact, on the shaft 14 there are several welding heads, and all the oners (cutting, control and welding) are required at the same time, but at different positions.

In this way, the combination of operations makes it possible to significantly increase the productivity of the welding machine and, eliminating the interception when the module is moved, increase the accuracy of its fit into the housing.

PREAMETE OF THE INVENTION

A welding machine for predominantly modules with a case of a semi-conductor device, containing mechanisms for supplying the parts to be welded, mounted on a vertical body, a multi-position rotary table with welding heads, a mechanism for cutting out modules, a measuring device, and an input device, characterized in that the rotary shaft of the multi-position table is mounted on a mounted, with the possibility of reciprocating non-displacement in the guide carriage, -interacting through the bracket and the two-armed lever with a cutting mechanism having a plunger disposed coaxially with the welding tool head and associated with the drive provided by camshaft obesnechivayuschy synchronous movement nuansona iistrumenta welding and cutting unit at the time.

five

f /

toi- 4

 If 7 g: t And fy t- 1 .i

in aku