DE1938031C

DE1938031C - Index bolt for supporting the tool turret on machine tools

Info

Publication number: DE1938031C
Authority: DE
Inventors: Eberhard van der 5140 Erke lenz Horst
Original assignee: Fa A Monforts, 4050 Monchenglad bach
Publication date: 1971-06-09

Description

Vorzugsweise ist als Führungskolben eine auf denPreferably, a guide piston is on the

Indexbolzen starr aufgesetzte zylindrische Buchse Indexbolzen, dessen eines Ende zum Abstützen vorgesehen. Es können dabei sowohl Gleitlager als eines längsverschiebbaren Werkzeugrevolvers an auch unter anderem Wälzlager angewendet werden. Werkzeugmaschinen vorgesehen ist und der Bei der Ausgestaltung und Zuordnung von Lager 40 gleichlaufend mit der Arbeitsbewegung des und Führungskolben ist vor allem zu beachten, daß Revolvers in seinem Lager ebenfalls längsverwenigstens die dem Revolver zugewandte Kante des schiebbar ist, dadurch gekennzeichnet, Führungskolbens auf dem gesamten Weg, den der daß er innerhalb der Lagerlänge nur mit einem Indexbolzen bei der Arbeitsbewegung zurücklegt, im an ihm ausgebildeten Führungskolben (5) geführt Lager aufliegt. Der Abstand zwischen dieser Kante 45 ist, dessen Länge etwa um den Hub der Arbeitsund der Indexbohrung im Revolver ist dann konstant. bewegung kürzer als das Lager (2) ist.Index bolt, rigidly attached cylindrical socket. Index bolt, one end of which is used for support intended. Both plain bearings and a longitudinally displaceable tool turret can be used Rolling bearings, among other things, can also be used. Machine tools is provided and the In the design and assignment of the bearing 40 concurrently with the working movement of the and guide piston, it is particularly important to ensure that the turret is also at least longitudinally in its bearing the edge of the revolver facing the slidable, characterized in that the guide piston on the entire path that it is within the bearing length with only one Index bolt moved back during the working movement, guided in the guide piston (5) formed on it Bearing rests. The distance between this edge 45 is, the length of which is approximately the stroke of the working and the index hole in the turret is then constant. movement is shorter than the bearing (2).

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims

ι ² ι ²

'The invention relates to an index bolt, therefore the deflection does not change when working one end to support the tool movement of the index bolt and can storcncie revolvers is provided on machine tools, and influences the working accuracy of the werlwuigder - to simulate the arboits movement of the Do not operate the machine anymore if the constant turret - can be moved lengthways in the bearing. S Value of the deflection when setting up the measure. The index bolt should not only take your own weight into account. .
• 'hold the tool turret, but also use the schematic drawing of an off-abutment form against the forces that act on the example, further details of the turret when the turret is cleared. . . ,.
set tools in engagement with the workpiece ίο The drawing shows an index booster, eggs standing. These forces usually have a very bearing 2 that can be moved in the direction of arrow 3. Very strong grain index bolts 1 azimuthally with respect to the turret axis can be placed on one bed with a component. Above all, this force component leads to the insertion of the pin 4 into the index bolt, so that the index bolt, the tool turret, which is generally not shown, is provided. is parallel to the turret axis, is slightly bent, is according to the invention on the index bolt lein huh-The deflection is set proportional to the third power of piston 5, such that the length L in the length between the bearing of the index bolt is the same in every position of the index bolt. This and the index hole in the turret. With the length in the bearing, it used to be necessary to measure the deflection at edge 6 of the bearing and the end of the index bolt when the turret or tool was advanced without using the longitudinally displaceable index bolt (German patent-according guide piston between the writing 1 280 628) . The latter length, which is designated in the drawing, for example, instead of cylindrical voltage with A , but depended on the respective cuts, conical cuts arise. This through- position of the index bolt. The above-described disadvantages resulting therefrom due to the reinforcement of the index bolt can be reduced or increased according to the invention, namely with a constant length L, but never completely eliminated. sided.

The invention is based on the object, means If the index bolt 1 except in the drawn

to create, with which the result of the deflection bearing 2 in one or more (the journal 4

resulting disadvantages should in principle be avoided opposite) bearings are kept

will. 30 it is favorable, also here leadership according to the invention

The solution according to the invention consists in using pistons so that the effective distance in the area of the bearing, the bearing surface of the index ratio from bearing to bearing or turret arm bolt, is designed as a (cylindrical) guide piston.
det and is about the intended stroke of the working movement shorter than the bearing. 35 claim: