SU1438893A1 - Grab feeding device - Google Patents

Abstract

The invention relates to the cold working of metals by pressure and can be used to transfer workpieces between the working positions of a multi-position press. The purpose is to increase the reliability of the device in operation. The blanks are moved between the working positions of the grippers. Grabs are mounted on grab bars. The clamshell lines are arranged symmetrically with respect to the feed axis with the possibility of movement perpendicularly and parallel to the feed axis. The grippers are mounted with the ability to move perpendicular to the feed axis and are equipped with a lifting mechanism. The latter is designed as adjustable rods along the length. The rods are mounted on the grab bars perpendicular to the feed axis with the possibility of movement in the vertical direction, spring-loaded relative to the grab bars in the feed axis direction and fixed on the grab rulers hinged with levers. On the base parallel to the feed axis the guide stops are mounted. They are located between the grab rulers. The rods are fixed with rollers that interact with the guide stops. 3 il. iO (L Ji 00 00 00 WITH CO

Description

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The invention relates to the cold working of metals by pressure and can be used to move workpieces between the working positions of a multi-position press.

The purpose of the invention is to increase the reliability of work.

FIG. 1 shows a clamshell feeder, top view; in fig. 2 shows section A-A in FIG. one; FIG. 3 is a view B in FIG. one.

The clamshell feeder contains a base 1 fixed on the frame of a multi-position press (not shown) with working positions 2 for processing workpieces 3, clamshell 4, located symmetrically relative to the axis 5

The workpieces 3, the grippers 6, mounted on the clamshell lines 4, the mechanism for lifting the grippers 6.

The lifting mechanism of the grippers 6 is made in the form of parallel pivoting levers 7 pivotally fixed at one end on the grab bars 4 and can be rotated in a vertical plane perpendicular to the axis 5 of moving the workpieces 3, a horizontal rod 8 pivotally fixed at the free ends of the pivoting levers 7. On one of the ends of the rods 8 is fixed clamping sponge 9 (grip).

On the grab bars 4, vertically mounted brackets 10 with vertical grooves 11. At the other ends of the rods 8, stops 12 are made, and these ends are located in the grooves 11. Springs 13 are installed on the rods 8, located between the stops 12 and the Y brackets. Angle of rotation of the levers 7 i.e. the length of the rods 8 is adjusted by a stop 14 mounted on the lever 7 with the possibility of adjusting movement along it and interacting with the bracket 10.

The rods 8 are fixed vertically to the axis 15 with rollers 16. On the base 1 there are fixed guide pads, made in the form of stop bars 17, and a guide 18, located symmetrically with respect to the axis 5. In the rails 18, clamps 4 are installed with the possibility movements in the longitudinal and transverse directions. In the longitudinal direction, the claw bars 4 are driven by a drive 19,

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in the transverse direction - from the drive. yes 20 through the mechanism of transverse displacement. .

The lateral movement mechanism contains vertically positioned levers 21J interacting with grab bars and pivotally fixed with the help of axes 22 on the base 1. The levers 21 are hingedly connected through a drive 23.

The device works as follows.

The actuator 20 is turned on, which, through the bars 23 and levers 21, moves the clamshell 4 along the guides 18 in the transverse direction. The rollers 16 interact with the stop bars 17. The rods 8 stop, and with further movement of the clamshell 4, the levers 7 turn. When the lever 7 is rotated, the rods 8 are raised and the springs 13 are compressed. When the rods 8 are raised, the clamping jaws 9 (grips) move the blanks 3 upwards.

The actuator 19 is turned on, which moves the grapples 4 along the guides 18 in the longitudinal direction. In this case, the rollers 16 move along the stop plates and hold the rods 8 from moving.

When the clamshell moves to the initial position, the rods 8 under the action of the spring 13 move in the direction from the brackets 10 and descend. The clamping jaws 9 lower the workpiece 3 on the working position 2.

Claims (1)

Invention Formula A clamshell feeder containing clamshell, located symmetrically with respect to the feed axis of the workpieces and installed on the base with the possibility of moving perpendicular to the feed axis, grips located on the grab lines with the ability to move perpendicular to the feed axis, and a lifting mechanism that differs from , in order to improve reliability, the lifting mechanism is designed as length-adjustable rods mounted on grab bars perpendicular to the feed axis with the possibility of movement in the vertical direction and spring-loaded springs relative to the clamshell in the direction to the feed axis, levers pivotally attached at one end on the grab rulers and pivotally connected to the other end with rods, guide pins mounted on 1438893 the base is parallel to the feed axis and located between the grab rulers, and the rollers mounted on the rods with the ability to interact with guide stops. J8 2I njO 13, 12 h4 Phie.1 A a rotated 838 FIG 2 TO 20 Fig.Z