SU986670A1 - Apparatus for tinning radio component leads - Google Patents

Description

(54) DEVICE FOR TREATMENT OF RADIO DETAILS CONCLUSIONS

one

The invention relates to the field of computers, in particular, to the tinning of semiconductor device outputs.

A device for galvanizing long bars C1-. Before galvanizing, put metal cups into the nests of the chutes and press them with wedges, inserting them into the bores. Then the device is immersed in a zinc solution and a electric current is deposited through the rods, which precipitates zinc on the HPC.

The disadvantage of the device is the non-possibility of fixing and partial processing of devices that are not fully immersed in the liquid, as well as the lack of a cooling unit for the heat-resistant parts of the devices, which is required for ropmeic coating with solder.

A device is known for tinning the leads of radio elements, comprising a two-part base with openings for radio components. С23.

The disadvantages of this device Owl 1kugsya impossibility of quality

 It has no conclusions with semiconductor devices, the inconvenience and duration of fixing parts, which reduces the performance and the impossibility of controlled maintenance of the required output frequency.

The purpose of the invention is to increase productivity, improve the quality of lumenin by ensuring controllability h °; obozhvuvani part of the conclusions ra10 ABoanieMeirroB.

The goal is achieved by the fact that a device for tinning the outputs of radio components containing a base joined with two parts with openings of a radio component dL

15 lei, equipped with a roof-shaped plate with openings for radio components and fixed on the axles mounted on the base with the possibility of 20 translational mixing, electrically magnet, placed in the upper part of the base, and an inert gas supply system connected to The unit is the 1st part of the base of the cone opening by them for radio components and a hollow capacitance formed between the upper and lower portions of the base.

Fig, 1 shows the device, a general view; in fig. 2 - the same, side view; in fig. 3 shows section A-A in FIG. one; in fig. 4 - the process of loading instruments into the cassette.

On the ground consisting of the upper

1 and the lower 2 parts, mounted on top of the electromagnet 3 and the nozzle 4 of the inert gas supply - nitrogen. In the lower part

2 bases made a lot of squaws; Holes with tapered walls 5 for basement of instruments 6 with terminals 7. Part of base 2 has a sample that, with the upper part 1, forms a hollow capacitance 8. Verzed base 1; nano ferromagnetic alloy 9 to ensure the reliability of the electromagnetic contact of the lower part of the base

2 and devices 6.

The holes 11 of the base are inserted into the axes 11 of the roof-shaped strip 12 with a plurality of holes 13 where the terminals 7 of the devices 6 are inserted. The plate 12 is equipped with a relative movement mechanism during immersion, made in the form of a rod 14 screwed into the base 1 mounted with the possibility of movement in the opening 15 of the housing 16 1 contacting via rollers 17 with an eccentric 15 of housing 16 and contacting through rollers 17 with an ecocentric 18. An eccentric is mounted in housing 16 on an axis 19, kinematically connected with holes 20 and 21 with an engine 22. Building 16 has a supply Two collet clips 23, in which the ends of the axles 11 of the bar 12 are fixed. The bottom part 2 of the base is installed in a container 24, which allows the base 3 to be gripped by the electromagnet 3 and the bar 12 by the clips 23. Before being loaded into the base (1.2) devices 6. installed in the shipping cassette 25, equipped with an anvil plate 26 (Fig. 4). In the working position, the device is lowered into the molten solution with a liquid flux, 28.

The device works as follows.

When the base and the bar 12 are located above the devices 6, which are located in the cassette 25 (Fig. 4), the heads of the devices go into the hole of the bar. When manually turning over the cassette 25 of the base 2 and the plate 26, the devices sink into the cones 5 lowering to the plate 26

the bases, 2, and the leads 7 stand vertically due to the bar 12. Then the container 24 is pressed against the base 4 and turned over manually. The container does not allow the devices 6 to fall out of the hole prior to energizing the electromagnet. When power is supplied to 3, the magnet force presses the devices to the cones 5 of part 2 of the base, which

0 allows you to quickly, easily and simultaneously remove them from the container 24. Then from the nozzle 4 into the container 8 enters the inert gas, nitrogen, which penetrates into the slots formed at the points of contact of the cone 5 and the rectangular part of the device 6. forms around the device gas streams. When the device is immersed in 27, the terminals 7 and the lower controlled part are serviced.

0 devices 6. Gas flows prevent the penetration of vapors of the flock 28 and the liquid solder into the sensitive front part of the device 6 with the microcircuit, protecting it while cooling

5 and improving the quality of the tin. In the process of sinking, the electric motor 22 continuously rotates the eccentric 18, jointly cf the rod 14 and the strap 12 reciprocating movement relative to the drives of the devices 6. Moving the strap prevents the formation of solder bunches in the holes 13 when immersed (before the strap is heated) and when removing . This improves the quality of the tinning.

Next, the devices are unloaded into a cassette in a reverse pass, the voltage being removed from the magnet 3.

The use of the described device makes it possible to automate the process of tinning the devices by introducing into the device a roof-shaped strip with holes for the terminals of the devices, an electromagnet with a relative movement mechanism, as well as an inert gas supply system, to control the process of serving the diodes, to prevent it; overheat diode cases, 8-1O times increase performance, compared with the prototype.

invention formula

A device for the tinning of radio components of radio components, containing a two-part docked base with openings for radio components, characterized in that, in order to improve efficiency and improve the quality of tinning by providing controlled service of a part of the outputs of radio elements, a device with holes for a radio element would be equipped with holes for radio components. and mounted on non-axles mounted on the base with the possibility of a post-displacement movement, placed on the upper part of the base, and a system of An inert gas attachment associated with conical apertures for the radio part made in the lower part of the base and an ool of capacity formed between the upper and lower parts of the base.

Sources of information /, taken in our own expertise. 1. Inf matio listok ed. Association on the guidance of scientific and technical information and propaganda in the RSFSR No. 27779.

2. Lovely witnessing. USSR 684046, cl. B 23 K C / PO, Z. O3.78 (prototype).

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Claims (1)

Invention formula NII A device for tinning the terminals of radio components, comprising a base docked in two parts with openings for radio components, characterized in that, in order to increase the productivity 936670 5 of depletion and improving the quality of tinning due to the provision of controlled maintenance of a part of the terminals of the radioelements, the device is equipped with a roof-shaped bar, with holes for radio components and axes fixed to it, mounted on the base with the possibility of reciprocating movement, placed on the upper part of the base, and an inert feed system gas associated with conical openings for radio components made in the lower part of the base and a hollow container formed between the upper and lower parts and grounds. Information sources,