SU714675A1 - Device for manufacturing contacts and their mounting on circuit board - Google Patents

Description

one

The invention relates to the field of designing equipment for the manufacture of printed circuit boards, in particular to devices for the manufacture of contacts and their installation on the board.

A device for manufacturing contacts and installing them on a board is known, which is located on the basis of a plunger holder, a feed mechanism, a mechanism for cutting off and fixing the contacts on the board 1.

However, the known device is not very productive, since it is intended for laying and fixing only one contact on the board.

It is also known a device comprising a fixed base and coupled to a drive punches, a bending die, a stacking mechanism and a mechanism for securing contacts to 2.

The known device is unreliable due to the fact that the supply of parts to the board occurs under its own weight.

The purpose of the invention is to increase productivity and reliability.

For this, the device for the manufacture of

contacts and their installation on the board, containing punches placed on a fixed base and connected to the drive, punches fixed in the punch holder, a bending matrix, a laying mechanism and a mechanism for securing the contacts on the board, are provided with a guide plate placed above the bending matrix and

On the base under the bending matrix, the matrix cassette, in which the punch holder, in the bending matrix, in the cassette-matrix and the guide plate are made coaxially through holes for the passage of the ribbon-blank, the holes on the adjacent surfaces of the cassette matrix and the bending matrix are made with cutting edged mechanism

The contacts are placed on the board in the form of a pusher unit fixed on the base with the possibility of interaction with the matrix cassette, and the mechanism for securing the contacts in the board is made in the form of a roller mounted above the pusher block, and on the surface of the cassette matrix, on the side of the bending matrix for posting fees.

Ha FIG. 1 shows a general view of the device; in fig. 2 - section A - A of FIG. one; and FIG. 3 - collected fee with contact.

The device contains a multi-cassette-matrix 1 placed on the guides of the fixed base 2. On the base 2, the guide 3 of the hinge is fixed, having the guide columns 4 located on them by the holding pin 5 with punches b serving for bending and feeding the tape on the tape.

Below the guide plate 3 there is a flexible matrix 7 in the same guide bases 2, in which the cartridge matrix 1 is located. The cartridge matrix 1 and the flexible matrix 7 are movable in a plane perpendicular to the punches.

The drive of the punches 6 and the dies 1 and 7 is carried out from the copier 8, respectively, through the levers 9 and 10.

A set of cassettes 11 with a tape 12 is located on the holder 13. To prevent the tape 12 from moving backwards when the punch 6 is retracted, a stop screw 14 serves;

The assembly position is provided with an ejector unit 15 and a cam 16 for driving this unit.

Above the array cassette 1, a bending roller 17 with a fixed axis on the base 2 is located behind the assembly position. To transfer the assembled board under the bending roller, the cassette matrix 1 has a groove 18, and the guide plate 3 has a stop 19 for pushing the assembled board 20 s contacts 21 into the groove 18. To reduce the friction of the cassette-matrix t when it moves to the assembly position, there is on the base 2 a fixedly mounted cam 22 and on a guide plate 3 a hinged lever 23, driven by the cam 8.

For moving the cassette-matrix 1 to the assembly position, the copier 8 is provided with a stop 24, and for returning the matrix it is equipped with a pull 25. The copier is driven by an air cylinder 26, and the spring 27 serves for lifting the plate 3.

The device works as follows.

For refilling the ribbons 12, the stop screws 14 are unscrewed and the ribbons 12 are fully loaded onto the surface of the matrix cassette 1, the belts 12 are folded by 90 degrees over the stop, and the screws 14 dt of the stop are twisted off and turned away by 1/4 () turn.

The drive 26 is turned on. From copier 8 through. the lever 10 of the bending matrix 7 moves to the right, bends the end of the tape and then returns to its original position. From the copier 8, through the lever 9, the punches 6 g1 move downward, bend, pull the tape 12, and, abutting against the surface of the base 2, finish the bending of the contacts and return to their original position.

i; .4.ife (.., e ei f

714675

The bending matrix 7 is shifted to the left, and with its lower plane forms the contacts 21 from the tape 12 o the cutting edge of the cassette-matrix 1. The guide plate and 3 together with the bending matrix 7 by means of a spring 27, copier 22, a lever 23 driven from copier 8 It rises up to reduce friction between the cutting surfaces of the dies 1 and 7. After that, the cassette 1 from the copier 8 is moved through the stop 24 to the assembly position, and the collecting board 20 is placed on the matrix. and the ejector unit 15 moved from the copier 16, the contacts 21 are assembled with the board. The cassette-matrix 1 returns the initial position, and the assembled board 20 rests on the support 19 and at the end of the course of the cassette 1 falls into its groove 18.

In the next cycle, the assembled board with a cassette-matrix 1. is pushed under the bending roller 17, and the contacts are fixed in the board.

In the proposed device, the manufacturing positions of the contact and assembly are separate. This allows you to visually monitor the assembly process and, if necessary, easily troubleshoot and improve the reliability of the device. To ensure the required performance, the device is multi-seated and the contacts are fixed at the same time from the position of making the contact to the position of the assembly. The multi-unit execution of the device, in addition to improving performance, allows simple means of reconfiguring to different options for filling the boards. This is accomplished by deleting the appropriate one.

Claims (2)

1. A device for the manufacture of contacts and their installation on a board containing placed on a fixed base p and attached to the drive fixed punch holders punches, bending a matrix, a stacking mechanism, and a mechanism for securing contacts on the board, characterized in that, in order to increase productivity and reliability of operation, it is provided with a guide plate placed above the bending matrix and a cassette matrix located on the base under the bending matrix, and in the punch holder, in matrix in cassette matrix and 0, the guide plate is made with coaxial through holes for the passage of the blank tape, the holes. on adjacent surfaces of the cassette-matrix and bending matrix are made with cutting edges, the mechanism for laying contacts on the board is made in the form  a block of ejectors fixed on the base with the possibility of interaction with the matrix cassette, and the mechanism is fixed and the contacts; in the board is made as roller mounted above the ejector unit. 2. The device according to claim 1, characterized in that a slot is formed on the surface of the matrix cassette on the side of the arrangement of the bending matrix. Sources of information taken into account in the examination 1. US patent number 3346162, cl. 227-95,1666. 2. US Patent No. 3574935, cl. 29-626, 1971 (prototype). 1I / / 77 / // for Z4-25 7 of FIG. /. HflJ OPP01G; 2 puz.3 ZO