SU138198A1 - Semi-automatic machine for punching holes in the patterns for hinges - Google Patents

Description

Known machines for punching holes for hinges include a die in the shape of a hole, a punch mounted on a lever, and a single-turn clutch in its drive, which is activated by a pedal through a lever transmission.

The described semi-automatic punching machine in the patterns of the holes for the hinges expands its area of application, due to the fact that in addition to the punching of the holes for the loops, a number of additional mechanisms are concentrated — for punching holes for hanging the patterns, as well as for punching holes for the tubular rivets and their Riveting when connecting parts of large-sized pieces. To perform these operations, the machine is equipped with two movable vertical rods connected by a hingedly forked rocker, one end of which is fastened to a transverse slide that interacts with a crank mounted on the single-turn clutch shaft, and a punch on the upper ends of the rods is mounted on the shaft. into the stationary coupling for punching the hole for hanging, and on the other - the matrix interacting with the stationary punch for punching the groove under the loop, and at the lower ends of the rods at one akreplen punch for punching rivet holes, cooperating with a stationary matrix, and on the other - for rasklepki punch rivet provided with a narrow tubular end cooperating with the incoming end of the fixed therein rasklepochnogo punch.

In order to mechanize the supply of rivets, the machine is equipped with a swinging hopper for rivets with a round rotating brush in the bottom for pushing the rivets into the inclined tray and directing them to the fixed rivet punch.

No. 138198-2. To protect the hands of the worker from falling under the punches, the machine is equipped with a protective shield fixed on the lever connected to the lever with the lever transmission of the single turn clutch pedal.

FIG. 1 shows a general view of the machine; in fig. 2 - kinematic diagram of the machine; in fig. 3 - a sample of a non-composite piece with punched holes under the loops.

The machine mechanisms are driven by an electric motor 1, which is activated by pressing a foot on the pedal 2, through lever transmission 3, setting in motion a vertical shaft 4, on the lower end of which is fixed a lever 5 closing the contact device 6. From the electric motor / through the belt the transmission 7, the worm gear 8. and the clutch 9 are driven by the main shaft 10.

For punching in the patterns 11, a longitudinal groove under the loop 12, an eccentric 13 is mounted on one end of the main shaft 10, communicating through the drag bar 14 a oscillatory movement about an axis 15 to a lever 16, at the end of which a punch 17 is fastened opposite the die 18 mounted on the machine body. At the other end of the ophthalmic shaft 10, a crank 19 is engaged, which interacts with the link 20. A vertical rod 22 is connected to the slide of the slide moving along the guides 21, at the upper end of which a punch 25 is inserted which is included in the fixed matrix 24 for robivki openings for podveschivani patterns.

Using the articulated fork fork 25, one end of which the roller 26 is fastened to the rocker 20 and the other through the roller 27 with the vertical rod 28, the latter receives a reciprocating movement in the vertical direction. A matrix 29 is attached to the upper end of the rod 28, which interacts with the fixed Punch 30 for punching under the loops 12 of the transverse grooves 31.

At the opposite, lower end of the rod 28, a punch 32 is fixed, which interacts with a fixed die 33 for punching a rivet hole in the piece, and at the lower end of the rod 22 is fixed a punch 34 for riveting rivet, equipped with a tubular narrow end, which interacts with the end of the rivet punch 55.

In order to mechanize the supply of rivets for riveting, the machine is equipped with a bunker 36 for rivets fixed on a lever 37, driven in oscillatory motion by a connecting rod 38, mounted on an eccentric 59, fixed on the main shaft 10. A round brush 40 is mounted in the bottom of the bunker 36, rotated by a flexible shaft 41 from the electric motor 1 via a belt transmission 42. In the wall of the hopper 36 there are holes 43 through which the brush 40 pushes the rivets into the inclined tray 44 installed under the bunker to single-piece the rivets to the rivet punch 35, ne With which the rivet enters the clamping device 45.

In order to protect the hands of the worker from hitting the punches, he is provided with a protective screen 46 attached to a double-arm lever 47 connected by a pull 48 with a lever transmission 5 of pedal 2.

When working on the machine, the complete loop of the loop is not applied on the patterns, but only mark the cutting lines in the longitudinal and transverse directions. The marking for the holes for hanging the piece also occurs and, in the case of a composite piece, the points of the parts of the piece are fixed at the rate of making tubular rivets at a distance of 80 mm from each other. In the hopper 36 lay tubular rivets.

Punching and holes can be made immediately on 2 - 6 patterns.

The machine is put into operation by pressure and no. 2. The worker sits at the machine and consistently delivers the patterns for punches that perform the intended operations.

Waste from punching holes is diverted through channels in a special collector 49.

The described machine allows to increase labor productivity in the manufacture of patterns and contributes to improving the quality of work.

Subject invention

Claims (3)

1. A semi-automatic punching machine in the hole patterns of the loop iodine, which includes a die in the shape of a hole, a punch attached to the lever, and a single turn clutch in its drive, activated by a pedal by lever transmission, characterized in that with the aim of punching in patterns longitudinal groove under the loop, holes, for their hanging under the tubular rivets and their riveting when connecting the constituent parts of the patterns, it is equipped with two movable vertical rods connected by a hingedly forked rocker, one and bonded to a transverse link interacting with a crank mounted on the shaft of the single-turn clutch, and on the upper ends of the rods mounted on one is a punch that enters the stationary die for punching the hanging hole, and on the other is a die interacting with the stationary die for punching the groove of the nod loop, and on the lower ends of the rods on one - there is a punch for hammering a rivet hole that interacts with a fixed matrix, and on the other - a punch for rivet riveting nny tubular narrow end communicating with the incoming end of the fixed therein rasklepochnogo punch. 2. The machine tool according to claim 2, characterized in that, in order to mechanize the supply of rivets for riveting, it is equipped with a swing rivet hopper, having holes in the rivet exit wall, a round brush in the bottom for pushing them out, rotated by a flexible shaft, and mounted on the lever by an eccentric oscillating by means of a rod, mounted on the shaft of the single-turn clutch, and under the bunker there is an inclined tray for directing the rivets to the stationary rivet punch. 3. The machine tool according to claim 1, characterized in that, in order to protect the hands of the worker from falling under the punches, it is provided with a protective screen fixed on the lever connected by a lever with a single-turn clutch pedal. № 138198 It  23 FIG. g thirty