SU1444041A1 - Arrangement for making hinges - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in the manufacture of door hinges from sheet material. The purpose of the invention is the expansion of technological capabilities. The device contains a combination stamp with punches and dies for pre-bending the ears of the flaps, curling the folded tab, assembling the flap with the rod and crimping the tab of the assembled loop. The mechanisms for feeding the blanks include a magazine for piece blanks, a slide gate and a three-armed manipulator. The grab of the first hand overrides the workpiece from the hem position to the curling position, the second hand grab from the curl position to the assembly position and the crimp, and the third hand grabs the part into the container for finished products. The mechanism for feeding the rods to the assembly position has a hopper, from which the intake rocker sector feeds them into the tubular bent cassette from the exit portion. From the latter, the rods fall into the stamp for assembly under the action of the pusher. 2 hp f-ly, P Il. "L

Description

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The invention relates to the processing of metals by pressure and can be used in the manufacture of door hinges from sheet material.

The purpose of the invention is the resolution of technological capabilities by using blanks with a thickness of about 2.5 mm.

Figure 1 shows a device without a handle, front view; fig 2 is about the same, side view; in Fig, 3 - manipulator, section; figure 4 - section bb on figZ; figure 5 is a section bb In fig.I; figure 6 is a view of G in Fig, 5; FIG. 7 shows a section DD in FIG. 2; FIG. 8 for looping 15; in fig. 9 - loop after bending | figure 10 is a loop after seaming; figure 11 - loop Assembly with the rod.

The device comprises a frame j, a bottom plate 2, mounted on a frame 20, a power cylinder 3, a slider 4, a combined stamp for bending, curling and crimping a core consisting of dies 5 and punches 6, fitted with guides, mounted on the Lower plate mi, mechanisms 7 for supplying blanks, mechanism 8 for supplying rods 9 having JO heads and a manipulator 1J consisting of body 12, carriage 13, hands J4 mounted on the arms, 30 combs J5, and mechanism 16 hand rotation . The manipulator is equipped with a caliper 17 mounted on the manipulator carriage with the possibility of E-return movement in the direction I9 35 perpendicular to the direction of movement of the carriage 13, and the arms .14 are placed on the caliper with the possibility of rotation around the axis. The rotation mechanism is made in the form of a J8 mounted on a carriage and a Toothed sector J9 mounted on a hand, which is in engagement with the rail. The body of the manipulator is fixed on the bottom plate. The mechanism for supplying the flaps is made in the form of a package of hinge blanks 21 fixed to the frame 20 for placing in it a package of hinges 21 having a slit 22 in the bottom along the thickness of the billet and a gate 23 mounted on the bed 1 s. possibility of reciprocating movement for interacting with the bottom in the package by loop and with support 17. The mechanism 8 for feeding the rods is a horizontal tray 24 for accommodating the rods of the loops, the sprung bar 25 installed with the possibility of returning-HC-progressive movement for

interacting with a hinge rod 9 and a pusher consisting of a guide bushing 26 and accommodated therein with the possibility of reciprocating movement of a finger 27 interacting with the head 10 of the rod, there is a gap 28 for the bushing 26 and the end of the die locating the head 0 of the rod, and the axis of the finger 27 is located above the axis 29 of the brook in the matrix to accommodate the eyelet loop by an amount equal to half the difference between the diameter of the head 10 and the diameter of the rod 9 of the loop, and the tong 15 is offset relative to the axis of rotation of the arm 14 For a value equal to 0.1-0.3 of the stroke L of the caliper 17, the punch of the working surface of the hemming has a serrated cutting 30, a stop 3 is fixed on the matrix 5 to interact with a loop with a height equal to the thickness of the loop blank. The mechanism for feeding the rods is equipped with a hopper 32 for loading the hinge rods, swinging the sector 33 with a slot 34 for collecting the rods and a tubular cassette with a vertical 35 and a horizontal 36 sections and a smooth transition between them. The punch guides are made in the form of a through slot 37 in the punch 6 and a protrusion 38 in the matrix 5 located in the slot of the punch. The stamp is provided with leaf springs 39. The punch 6 is fixed on the top plate connected to the slider 4, in the grooves 40 perpendicular through the slits 37, while the leaf springs 39 are placed in the slots 40 with the possibility of interaction with the nvaH-sleep and the top plate. The die is machined with loops 41, 42 and 43, respectively, after hemming, seaming and core processing operations assembled from rods.

The machine works as follows.

In the store 20 manually or automatically from a cutting die, blanks 21 of the loops arrive, where they are placed by Pgzket. In the stamp between the die 5 and the die 6, there are always three workpieces 41, 42 and 43. After the stamping, the slider 4 rises, releasing the stamped parts. Then, from the sensor of the upper position of the slide 4, a command is issued to the drive of the carriage 13, which moves in the direction of the die to the stop. In that

the position of the tongs 15 (e.g. electromagnetic) are located above the protruding portions of the loops. At the command of the end position sensor of the carriage 13, the tongs grab the hinges and the carriage moves to the rearmost position, with all three pieces removed from the die. Then, at the command of the sensor of the rearmost position of the carriage, the caliper drive 17 is activated, shifting it and the gate 23 to the right. At the same time, the slide gate pushes the blank in the bag, and through the slot 22 sends

her stamped into the hem zone. When moving the caliper 17, the toothed sectors 19 fixed on the first and second arms are rolled in 18 each,

directs them

port described cycle repeats. The hinge rods 9 are poured into the hopper 32, where they fall into the slot 34 of the swinging sector 33 and hang on the heads 10. Moving along the slot under the CLOP at its end, they fall into the tube, where they move from the vertical 35 to the horizontal section 36, After the exit of the tube, spring-loaded strip 25, for example, with an electromagnetic drive, the rod is displaced into a parallel zone of the pusher, which is also in the hole of the loop.

directs them

The proposed device in comparison with the known allows to expand

they turn their arms and, therefore, the arms 15 with loops by 90. At the moment the caliper stops in the extreme right position, the sensor gives a command to move the carriage, which moves forward as far as it will go. At the same time, the loop that the first hand gripper holds appears in the stamp in the curling zone, the loop on the BTOpoli hand in the core zone, and the loop on the third hand outside the stamp. The carriage stop in the front position gives a command to the tongs that release the loops, while the loop is ready from the third hand falls into the container for the finished products, and the loop on the core operation drops to the stop 31. At the same time a command is given to retract the carriage and drive the pusher. In this way, the finger 27 slides in the guide sleeve 26, moves the rod 9 into the hole of the loop. To eliminate jamming of the rod having a head and, therefore, inclined, the axis of the guide sleeve 26 is located above the axis 29 of the stream in the matrix. In the JO noose, the loop head falls into the gap 28. After the rod has been inserted in the loop, a command is given to press the press. The slider 4 under the action of the power cylinder 3 is lowered, while the punch 6 and the matrix 5 are stamped: on the loop 41 - bend, on the loop 42 - roll-in, on the loop 43 - shaft, after which the slider 4 with the punch 6 rises. After stopping the carriage J3 in the rearmost position, a command is issued to move the slide to the left. In doing so, the hands are turned 90, taking the starting position. After stopping, supra-mechanical capabilities and, in particular, to manufacture PPFM door hinges according to GOST 17585-72.

Claims (1)

1. An apparatus for making hinges, preferably door hinges, made in the form of an eyelet leaf and a rod, comprising a combined stamp with a bottom plate for fastening to the press table and with the top plate for fastening to the press ram, mounted on the plates punches and dies for preliminary bending the tab of the flaps, curling the folded an eyelet, an assembly of a flap with a rod and a crimping of the eyelet of the assembled loop, a mechanism for feeding the rods to the assembly position, including a rod cassette with receiving and output sections and a pusher for feeding the rods from the outlet section of the cassette into the flap eyelet and mechanisms for feeding the blanks, characterized in that In order to expand technological capabilities, a punch for Pre-folding of the flap of the eyelet is provided with an additional stream for hemming the area of the ear adjacent to the flat part of the flap, and a stream for making longitudinal grooves on the eyelet located between the strands for hemming, and mechanisms for feeding the blanks are made in the form of a magazine mounted on the bottom plate for piece blanks shutters with a slot in the lower part of the store for the passage of the workpiece, gate, fit-. new on the bottom plate with the possibility of reciprocating pefe. i Thebes. g 2 Aa 15. 15 /four v tL X, kZ Sh. vyssap R IS Fi84 111. J / // g 15 U 14 t FIG. 6 dd FIG. Fig 8 Fi & W Fig. (0 Fi & .and