DD267219A1 - DEVICE FOR POSITIONING FLAT PRISMATIC WORKSTUECKE - Google Patents

Abstract

The invention relates to a device for positioning flat prismatic workpieces in the support of a working plane of processing machines, in which by a linearly moving drive via a lever mechanism, the pivoting of a Betetigungsgliedes to the level of the working plane and then lowering the same is made below the level of the working level. It is assumed that the task is to first turn the positioning element carrying out the positioning movements to the level of the working plane and lower it below the level of the working plane once workpiece positioning has been completed. This object is achieved according to the invention characterized in that the hinged on a kraftbetaetigten lever drive Betetigungsglied is designed as an angle lever whose power arm forms the end-side part of the free leg of a one-armed, arranged on a base frame part below the level of the working plane pivot lever, wherein the power arm of the angle lever articulated on the bobbin of a linearly moving drive and the load arm of the angle lever is guided in and brought to the level of the working level in and out swinging after being brought into effective position swivel lever. figure

Description

Field of application of the invention

DIU Erfindu, relates to an apparatus for positioning flat prismat'scher workpieces into the Aufloge a Arbeltsebene of BearbeUur, j ^ machine, in which by a linearly moving Antiieb via a lever drive is a pivoting oinos actuator to the level dor Arbeitsebone and then thereof lowering by the level of the working level is made.

Characteristic of the known state of the art The transfer of flat prismatic workpieces in the working level of processing machines is variously with

aggravating circumstances, especially when it comes to workpieces of relatively large mass and less

Thickness is involved, and in the work plane oine exact positioning in several levels is required. Is it?

Moreover, to handle workpieces with sharp edges to one or more cutting edges, especially in the form of machine knives genannton sense, the fact comes to work, for reasons of safety and also for reasons of quality assurance of the tool cutting with due care and diligence ,

Especially for the purpose of positioning such workpieces in their processing position by moving or dislocating

by hand, but also with the help of mechanical Betätigungsylieder prepares their handling experience considerable

Trouble. Similarly, the problems of such workpieces from your editing position unhindered by the Beiseitebringen such To remove aids again. By DD-PS 222825 a retractable stop for positioning is extendable for a similar task Sliding tables on presses for sheet metal forming known to be achieved with the sliding tables exactly

position and then perform because of their necessary unobstructed displacement options retractable.

For this purpose, the stop is arranged on a toggle linkage, through the actuation of a einet Piston-cylinder unit, the stop can be brought into and out of active position to the sliding table. This working with retractable stop positioning is, although the problems are similar, for the solution of

The object underlying the invention is not suitable because the stop in this case no additional Einschwenkbewogung allowed to perform against the machine part to be positioned.

In the solution known from DD-PS 226811, a tensioning device in a relaxed position below the level of Workingbeno proposes zurückbringbarem, power operated clamping lever, was an analog lying problem with the

solved by the present invention similarly acting means.

However, even this construction of a tensioner is not suitable for the problem of workpiece positioning

be able to perform a solution corresponding to the functional requirements.

Object of the invention

The aim of the invention is to perform the positioning of flat prismatic, relatively thin and provided with sharp edges machined body edges in the form of Werkzeugschnoiden workpieces in the working plane of machine tools in real time and with improved effect.

Explanation of the essence of the invention

The object of the invention is to provide a device for positioning of flat prismatic workpieces in the support of a working bee of processing machines, with the aid of which the above-mentioned expedient actuator is first pivoted to the level of the working plane and, after completion of the workpiece positioning, is below the level of Arbeltsebenu can be lowered.

DJese object is achieved by the fact that the hinged on oinem power-operated lever actuator actuator

is designed as an angle lever, the force arm the endsel'igen part of the frelon leg of a one-armed, at one

Qrundgestell forms below the level of Arbeltsebone arranged pivot lever, wherein the power arm of the lever lever

hinged on the plunger of a linearly moving drive and the load arm of the Wlnkolhobols brought to In Wirklageem

Pivoting lever in or on the level of the working plane power actuated on and by a between the swivel plane and the Power arm of the angle lever arranged Fedur is designed swung. With the solution according to the invention, the purpose intended by the invention is achieved, although with simple structural means,

However, achieved with high funktlonellem effect, this Positionloreinrichtung equally advantageous for the cases

Application can find where it comes to dio workpieces after processing back from their receiving position

before they have been detected by other handling devices and transported on.

This has a particularly advantageous effect where workpieces are attached to the edges of the body Workpiece cutting, which must be handled carefully because of its sensitivity. It is also advantageous that the actuators after the workpiece positioning or after execution of their

actual function can be swung back below the level c'er working level, so as not to interfere with other handling manipulations.

Aueführungsbeispiel The invention will be explained below nn an embodiment. The accompanying drawing provides the positioning with befindlichem in and out of working position Winkolhebel of Lever drive schematically. In a base frame 11st formed by a support plate 2 with the rear stop 3, the Arboitsebone 4, on the stylized

Pictured workpiece 5 is recorded lagobestlmmend.

On the base frame part, a single-arm pivoted lever 6 is arranged below and parallel to the working level 4, in

whose free leg is a Winkelhobol 7 ebonfalls pivoted gelagort.

The power arm 8 of this angle lever 7 is on the plunger 9 of a linearly moving drive 10, preferably a pneumatic

actuated Arbeltszylinders, nngeenkt, while the load arm 11 of the angle lever 7 pivoted in on the working plane 4

Condition cooperates with the workpiece 5 to be positioned. Between the pivot lever 6 and the power arm 8 of the angle lever 7, a spring 12 is provided by the action of the Winkolhebel 7 in the unactuated state by the plunger S of the drive 10 in the drawing only hinted

position shown assumes.

If a workpiece 5 is now placed on the support plate 2, it must be accurately positioned for the intended processing purposes

and be brought to the existing attacks 3 to the position-determining system. This is done so that the plunger 9 dos

Drive 10 is extended and comes as a result of this movement of the pivot lever 6 at the stop 13 to the plant. During this movement, the angle lever 7 is in the suggestively illustrated open position, which

is caused by the spring 12 and the articulation of the angle lever 7 can initially act as rigid.

Only at the other Ausfahror. the plunger 9 is overcoming the tensioned spring 12 Whikelhebol 7 in his Funktionlago eingekchwenkt and brings his load arm 11 on the workpiece 5 In Wirklage. As a result of this movement is the Workpiece 5 pushed to the stops. If this is done, the plunger 9 moves back to the starting position, whereby the Angle lever 7 is again swung out of the work plane 4 and then after the now done processing

an unhindered removal of the workpieces 5 is possible.

Claims (1)

Device for positioning flat prismatic workpieces in the support of a working plane of processing machines, in which by a linearly moving drive via a lever drive a pivoting of a messenger in or on the level of the working level and then lowering it below the level of the working plane takes place characterized in that the actuating member is formed as an angle lever (7), the power arm (8) forms the end-side part of the free: leg of a one-armed, on a base frame part (1) below the level of the working plane (4) pivot lever (6), wherein the force arm (8) of the angle lever (7) articulated on the plunger (9) of a linearly moving drive (10) and the load arm (11) of the angle lever (7) brought into effective position pivot lever (6) in or on the level of Working plane (4) power-operated on and by a between the pivot lever (6) and the power arm (8) of the angle lever (7) arranged spring ( 12) is designed swung out. For this 1 page drawing