SU1202683A1 - Arrangement for feeding piece blanks to die - Google Patents

Description

I

The invention relates to the mechanization of metal forming processes and can be used to feed piece blanks into a die during hot stamping.

The purpose of the invention is to expand the technological capabilities of the device for feeding piece blanks into a stamp by allowing the rejection of underheated pieces and increasing its reliability.

FIG. 1 shows the proposed device, a general view; in fig. 2 view A in FIG. ; in fig. 3 is a view B in FIG. one; in fig. 4 shows a section B-B in FIG. 2; in fig. 5 - the position of the grip on the position of the grip of the workpiece, the exit of the necks from the inductor; Fig 6, the same, at the position of rejection of sub-heated billets; in fig. 7 the same, at the position of pushing the grip into the matrix; in fig. 8 - section GG in FIG. 6

A device for feeding blanks into a punch is placed on the bottom plate 1 of the stamp and includes a housing 2 inside which shaft 3 is placed in bearings. an earring 7 is associated with an oscillating pneumatic cylinder 8.

On the lever 6 fixed hard 9 and adjustable 10 stops. A pneumatic actuator 11 for the movable stop 12 is attached to the side surface of the device body 2. In addition, adjustable stops 13 - 15 are attached to the device body 2. A bracket 17 is attached to the top plate 16 of the stamp, in which a spring 19 is attached by means of a spring-loaded self-aligning ball lock 18.

A flat stop 20 is attached to the pusher 19, it has a bracket 17, there is a vertical slot 21 for moving the abutment 20. The upper part 22 of the pusher 19 is tapered, it can interact with a limit switch to turn off the press and the inductor in an emergency situation, for example, inaccurate centering capture. The device has a tray 23 for receiving you

bent from the mechanical hand underheated blanks 24.

The device works as follows.

e. From the pneumatic valve, compressed air is supplied to the piston cavity of the pneumatic cylinder 8, and the gripper 4 takes a horizontal position (FIG. 5) opposite the output point of the inductor.

10 The accuracy of this position is determined by the stops 9 and 14. The long end of the jaw 5 contacts the stop 15, the grip is opened, and the workpiece 24 from the inductor is freely pushed into

15 grip 4. The temperature of the workpiece is determined by the photopyrometer. If the workpiece is underheated to the forging temperature, the external cylinder 11 of the pneumatic actuator 11 serves

20, the compressed air and the anvil 12 extend. When a command is received to trigger the gripper 4, the compressed air is fed into the rod cavity of the pneumatic cylinder 8 and the gripper-arm 4 begins

25 rotate 5 the sponge 5 is released and, under the action of a spring, clamps the workpiece 24 in the gripper 4. The gripper 4 rotates until the stops 10 and 12 come into contact.

thirty

the stop 20 knocks the underheated workpiece 24 out of the gripper 4 into the bypass tray 23. When the ram is raised, the gripper 4 reverses, and then the cycle repeats.

At the exit from the inductor the blanks 245 heated to the forging temperature, the pneumatic actuator 11 operates in the opposite direction, the stop 12 is removed, the gripper turns 4

(Fig. 7) so that the workpiece 24 is placed above the die. The accuracy of the final position of the gripper 4 determines the interaction of the stops 9 and 14. During the press slide down

pusher 19 knocks the heated billet 24 out of grip 4 into the die. If the workpiece in the matrix does not fall, for example, with inaccurate centering hands, spring is triggered

the latch, and the pusher 19 is raised upward relative to the bracket 17 and, with its conical part 22, presses the limit switch, thereby turning off the press and

inductor. This ends the cycle.

L4

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ts

8id A

 FIG. 2

View b

19fig .f

FIG. 6

sixteen

23

FIG. b

Fig 8

20

VNIIPI Order 8352/10 Circulation 646 Subscription

PGS Patent Branch,

Uzhgorod, Projecto st., 4

Claims (1)

DEVICE FOR FEEDING PIECES TO PIECES OF PIECES, mainly during hot stamping, comprising a housing mounted on the bottom plate of the die with a shaft rotatably mounted on it, at one end of which a grip with a spring-loaded sponge is mounted, and the other end of the shaft is connected via an intermediate gear to the drive, and a bracket mounted on the upper plate of the stamp, characterized in that G, in order to expand technological capabilities by providing the possibility of rejection of cold workpieces and increase reliability In addition, it is equipped with a movable movable stop mounted in the housing parallel to the axis of the shaft for fixing the shaft in an intermediate position, a pusher in the workpiece stamp with a position lock mounted in the bracket with the possibility of movement, and a flat stop placed on the pusher to interact with spring-loaded sponge gripper in the intermediate position of the shaft. SU ..,. 1202683