SU1722661A2 - Combination-action die - Google Patents

Abstract

The invention relates to the processing of metals by pressure, in particular to dies for the processing of microchips. The purpose of the invention is to expand technological capabilities by obtaining bent pins of various heights and improving the quality of parts. The stamp contains a frame 1, in which the punch-matrix and P 8 and 9 of the clamp and in the lower part of P 20, 21 and 23 are installed in the upper part of the half (P) 6 and 7. 22

Description

it and the outer parts of the bending punch and half 26 and 27 of the cutting matrix. In the lower part of the stamp, a cassette (CC) 38 is installed to feed the chips 42 into the work area. The CS 38 is designed as a gutter with a series of grooves in the walls. Bevels are made on the inside of the bending punch. The size of the working part of each punch, each die and each clamp is made larger than the size of the groove and not more than the pitch of the grooves. The stamp has a wedge

mechanisms 18, 19 and 34, 35 for adjusting the stroke of the working parts. The chip 42 is laid down in the CS 38. Each output falls into the corresponding slot of the COP 38. When fed to the corresponding step, each output falls on the working part of the bending punch. The bevels allow to compensate for the difference in the disposition of the leads. When the upper and lower parts of the stamp are closed, only one pair of leads is flexible. 1 hp f-ly, 3 ill.

The invention relates to the processing of metals by pressure, in particular to dies for the processing of microchips.

The purpose of the invention is to expand technological capabilities by obtaining bent pins of various heights and improving the quality of parts.

Figure 1 shows the stamp, section; figure 2 - node I in figure 1; in FIG. 3, view A in FIG. 2.

The stamp contains a fixed bed 1, on hinges x 2 and 3 of which cases 4 and 5 are installed. In the upper parts of the cases are placed the right 6 and left 7 half of the die punch, the right 8 and left 9 half of the clamp, springs 10 and 11. Half b and 7 punch dies have recesses 12 and 13 and stops 14 and 15, by which they are associated with their drive mechanisms 16 and 17, and means 18 and 19 for adjusting the stroke in the form of wedge mechanisms.

In the lower parts of shells 4 and 5, the right 20 and left 21 half of the inner part of the bending punch are placed, the right 22 and left 23 half of the outer part of the bending punch are spring-loaded with springs 24 and 25, the right 26 and left 27 half of the cut-off matrix with notches 28 and 29 and stops 30 and 31, by which the dies are associated with their drive mechanisms 32 and 33. The halves 20-23 of the bending punch and 26 and 27 of the cutting matrix have means 34 and 35 for adjusting the stroke in the form of wedge mechanisms,

Cases 4 and 5 of the right and left halves of the stamp are installed with the possibility of wiring on the rod 2 on the rollers 36. In the forming area along the longitudinal bei of the stamp on the base 1 is fixed the drive 37.

A drive 38 is mounted on the actuator 37 to move between the die halves. The cassette 38 is designed as a groove with rows of grooves 39 for placing the chip in such a way that

The leads to the forming zone were below the working platform 40 halves 20 and 21 of the inner part of the bending punch. The sides of these halves are made with bevels 41. The chip is indicated by the position 42.

The stamp works as follows. Prepared for flexible outputs, the microcircuit 42 is installed in the cassette 38. The leads are freely inserted into the slots 39 of the cassette 38. Under the action of the actuator 37, the cassette 38 is fed into the working area of the stamp. The conclusions one by one fall on the bevel 41 of the halves 20 and 21 of the lower part of the stamp, and, lifting it, arrive at the working platform 40, which compensates for the unequal position of the conclusions.

Then, the upper actuators 16 and 17 are turned on.

the halves 6 and; 7 with the halves 8 and 9. The leads of the microcircuit 42 are clamped between the halves 8 and 9 and the halves 20 and 21 of the inner part of the bending punch. Upon the further movement of the halves 6 and 7, the flexible pin of the chip 42 is realized, after which the movement is stopped.

Then, the halves 26 and 27 of the cutting matrix with the halves 22 and 23 move from the drive mechanisms 32 and 33, which together with the halves 6 and 7 carry out the final bending of the leads.

At the end of the working stroke, the movement of the halves 22 and 23 stops and they are held by the halves 6 and 7, and the halves 26 and

27, with further movement in the direction of the halves 6. and 7, trimming the leads of the chip 42 by their cutting edges.

After this action forces drive

the mechanisms 16, 17, 32 and 33 are stopped and the moving parts are returned to their original position by the action of the expanding springs 10, 11, 24 and 25. Stamp adjustment to a different depth of molding, including

different for the right and left parts, produced by the wedge mechanisms 18, 19, 34 and 35. The drive 37 moves the cartridge 38 to the step, and the molding cycle repeats.

Adjusting the punch for bending the leads of microcircuits of other sizes is carried out by moving the punch bodies on rods x and 3 relative to each other and changing the cassette.

The use of the invention allows to expand the technological capabilities by obtaining bent leads of various heights and to improve the quality of the parts.

Formulala and assertion 1. Combined action stamp on author. St. No. 959877, characterized in that, in order to expand the technological

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capabilities due to bent pins of various heights and improving the quality of parts, it is equipped with a cassette for feeding workpieces into a work area made in the form of a groove with rows of grooves in the walls for placing the pins, the size of the working part of each punch, each die and each clamp in the direction parallel to the row of grooves, the groove size is larger and not larger than the groove pitch, on each internal part of the bending punch there are bevels extending to the periphery in the direction of the row of grooves, and the die is provided with by adjusting the stroke of the die, clamps, bending punches and cutting matrix.

2. A stamp in accordance with claim 1, wherein the adjusting means are made in the form of wedge mechanisms.

FIG. 2

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Claims (2)

Claim 1. Stamp combined action by author. St. No. 959877, characterized in that, in order to expand technological 1520 possibilities due to obtaining bent conclusions of various heights and improving the quality of parts, it is equipped with a cassette for feeding workpieces into the working area, made in the form of a gutter with rows of grooves in the walls to accommodate the conclusions, the size of the working part of each punch, each die and each clamp in the direction parallel to the row of grooves, more than the size of the groove and not more than the pitch of the grooves, made on each inner part of the bending punch bevels are made, extending to the periphery in the direction of the series of grooves, and the stamp is equipped with means of adjusting the stroke of the punch matrix, clamps, bending punches and cutting matrix. 2. The stamp according to claim 1, characterized in that the adjustment means are made in the form of wedge mechanisms. FIG. 2 Bui A