DE2331347A1 - Combined headstock feed, capstan and parting-off support - feeds headstock lengthwise and support crosswise leaving capstan free - Google Patents

Abstract

The equipment is for use with semi- and fully-automatic lathes, the indexing capstan head being inclined. Head-stock feed takes place in the lengthwise direction, while the parting tool support acts in the transverse direction. The capstan head remains free for internal machining. Additional spring, hydraulic or pneumatic linkages are incorporated which through a stop pawl are forced into an end setting. For longitudinal machining a sensor control and compensates for longitudinal workpiece expansion.

Description

Konrad Müller-Falkenberg 4C} 5 Hotel, Eickelscheidt 15

Description Title: Lathe with feed headstock

field of use

and purpose t Construction of a lathe according to the modular principle, in which the workpiece is fed in the longitudinal direction. The machine is particularly suitable for one-off production as well as for the more economical production of small and medium-sized quantities. »An automatic lathe for mass production can also be designed according to this system. Unsuitable, however, the machine is suitable for long screws and Vetlen _o

Solution: The basic machine consists of the underframe with bed and headstock lower part, on which the longitudinally movable headstock slides in prismatic or flat track guides

The headstock is set by hand with a crank according to the usual scale ring via bevel gears, nut and spindle or via hand lever, Gear and rack advanced.

The automatic feed is most expediently carried out by a direct current motor that can be electronically controlled continuously in terms of its speed driven, which is flanged on the rear of the machine. Or the work spindle can be used as an extendable quill like in drilling machines Usually designed »With the same work path, however, you do not achieve such good rigidity and thus high surfaces - ,.: good of the turning image as by shifting the entire headstock with its greater massο

Achievable advantages over the mechanic lathe:

In conjunction with the usual mechanics lathes lever or crank cross support filming in the longitudinal direction and drilling are with automatic headstock feed against a stationary tool (z ₀ as drill bits) in the tailstock possible When drilling simultaneously with a feed movement and is rotated externally, can now for adjusting the drilling depth which Quill position in the tailstock, the limit stop of the feed headstock can be used to limit the outer approach of the top slide of the cross support and to switch off the two simultaneously running operations _e

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Another advantage of the machine lathe is there in the larger turning length with constant cylinder dimension, which is guaranteed by the straight movement of the headstock.

The precise, time-consuming set-up of the support upper slide is also no longer necessary according to the angle scale to 0 ° for cylindrical turning »If feed spindle and work spindle with change gears or one Gearboxes are connected, threads can be cut similar to a lead screw lathe,

Obtainable advantages over

the LZDt

It is also advantageous compared to the guide and pull spindle lathe, that the guideway for the long turning is above the bed and that the leverage of the cutting pressure on the guide is lower Because of its location alone, the guide is better protected against dirt, chips and damage The intended redesign is much simpler, clearer, more compact and cheaper, and you can do it with just a few Handles can be converted into a turret lathe «.

Advantages of the Serial production;

If a turret slide with an inclined index turret head that switches and switches on automatically in its right end position Parting support, as both offered by the lathe manufacturers (Lorch, Leinen, Weiler, Schaublin, etc.) can be used with the Parting support can be turned lengthways by the headstock feed, which is excluded with conventional machines and why The turret head is not very suitable either to use the headstock feed "

If you change the turret head so that it is through an additional component (spring, hydraulic or pneumatic) in its left the stops limited end positions is printed, so can with the headstock feed against the tools of the turret head can be worked by hand or automatically »by means of a center punch, which is placed in a tool mounting hole in the turret head, you can also perform longitudinal turning with the headstock feed against the tip that is resiliently pressed by the turret head

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That would be the elongation of the turned part caused by heating also compensate during turning »This machine therefore enables universal use with the shortest possible set-up times ·

When the three movements of the headstock, Abetech support and Electromotive, hydraulic, pneumatic or hydropneumatic turret head are controlled, this creates a clear, universally usable automatic turning machine. The longitudinal movement can also be controlled Use the headstock to reload bar material by advancing the headstock to remove the protruding material locked, the clamping tool opened, the headstock retracted by the required amount and the clamping tool closed again will"

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Claims (1)

- H ' Preliminary termi 1 ₀ lathe, in which the feed in the longitudinal direction through the headstock movement or an extendable quill (work spindle with bearing sleeve). Identifying part: Characterized in that in this lathe the feed in the longitudinal direction of the work spindle with the rotating Workpiece is executed, General term of the sub-claim: 2 thread cutting by headstock movement, Identifying part: characterized in that the work spindle and feed spindle (lead screw function) are connected via gears, so that the headstock around the thread pitch to be cut per work " spindle revolution advances. General term of the sub-claim: 3c Spring-loaded center punch to compensate for the feed movement when turning in the turret head or tailstock, Identifying part: characterized in that the center point for supporting the workpiece when rotating in its longitudinal direction is displaceable against pressing the workpiece, adapts to the longitudinal feed of the workpiece « General term of the sub-claim: 4 «The combination of headstock feed, turret head and Parting support on semi or fully automatic machines, Identifying part: characterized in that with the headstock feed in the longitudinal direction, with the parting support being worked in the plane direction and that the turret head is essentially for internal machining remains free. General term of the sub-claim: 5β Automatic reloading of bar material by the headstock feed on semi or fully automatic lathes, Characteristic part: characterized in that the now also in the longitudinal direction Movable headstock moved forward, the protruding material locked, the clamping tool opened, the headstock around the required distance and the clamping tool is closed again 409883/0058 ORiGUNAL IHSPSCTED