DE845295C - Copying device on machine tools, in particular lathes, cylindrical grinding machines and milling machines - Google Patents

Description

Issued on the basis of the First Transitional Act of July 8, 1949

(WiGBl. P. 175)

FEDERAL REPUBLIC OF GERMANY

ISSUED JULY 31, 1952

GERMAN PATENT OFFICE

PATENT LETTERING

CLASS 49a GROUP 13oi

V 3072 Ib149a

Bernhard Benz, Zurich (Switzerland)

has been named as inventor

Management company of the machine tool factory Oerlikon,

Zurich-Oerlikon (Switzerland)

Copying device on machine tools, in particular lathes, cylindrical grinding machines and milling machines

Patented in the territory of the Federal Republic of Germany on January 24, 1951 Patent application published November 22, 1951

Grant of patent announced on June 5, 1952 The priority of the application in Switzerland of February 2, 1950 has been claimed

The invention relates to a copier on machine tools, in particular Lathes, cylindrical grinding machines and milling machines that control the tool with one Button and a flat template, which the tool during the commute on a lead other way than on the empty path, are equipped.

The invention consists in that the template in the tactile direction one behind the other and in different Has high-lying scanning edges for the working and idle paths of the tool, which at the transition of the stylus, which can be flexibly displaced perpendicular to the template surface provided button cross each other from the upper to the lower scanning edge, at the transition from the lower to the upper scanning edge are provided with sloping surfaces.

Exemplary embodiments of the subject matter of the invention are illustrated in the drawing. It shows ao

Fig. Ι one of two superimposed plates existing template with two stylus guide surfaces,

2 shows the template in a view of the stylus guide S surfaces;

Fig. 3 shows a diagram of the stylus path according to the template of Fig. Ι and 2,

4 shows a cross section through the template as well as through the stylus probe sensing the template partly in cross section along line I-I in Fig. I;

Figs. 5 and 6 show one of two superimposed Plate-formed template used to control a tool carrier with two tools serves, which alternately get into working position;

Fig. 7 shows a tool holder with two tools and the workpiece in cross section the production of which is used by the template according to FIGS. 5 and 6 ao;

8 and 9 show a template which consists of three superimposed plates; . .

Fig. 10 shows a template made of two superimposed Panels in which the upper panel is slidably attached to the lower one, in plan view;

Fig. 11 shows a front view of Figs FIG. 12 shows a cross section along line H-II in FIG. 10.

The template A (FIGS. 1 and 2) consists, for example, of two plates 1 and 2 which are connected one on top of the other and which have stylus guide surfaces i "and 2" used to guide the stylus 3. The lower of the two plates is provided with an obliquely rising Täststiftüberleitfläche 4, which is used for promotion of the stylus 3 onto the surface ⁶ of the plate 3. 2 The guide surface i ^a is used to control a tool while it is working, for example when cutting or grinding a thread, and the surface 2 ″ guides the stylus on the return path of the tool. 1 and 4) It is pressed out of the holder arm 5 by a spring 6 by a distance W which is limited by the stop head 7. When the carriage moves forward, that is, when the steel or the emery disk is working, the stylus slides along the guide surface i ^{a of} the upper plate 1. At the end of the tool slide path, the stylus 3 is pressed outwards through the transfer surface i ^b so that the tool is steered outside the area of the workpiece the lower plate 2 has stepped out, it is pressed down by the spring 6. The tool slide travel is at this moment with the beka nnten organs of the machine tool concerned switched. During the backward movement of the tool slide, the stylus 3 now runs along the surface 2 ° of the template 2 and rises over the inclined deflection surface 4 onto the surface 2 ^{b of} the plate 2.

Now the pin 3 can come back against the surface i ° of the plate 1, and after the path change of the tool slide, the work process is repeated.

5 and 6 show a template which consists of two plates 11 and 12 lying one above the other. The upper plate 11 has guide surfaces ii °, 11 *, ii ^c and n ^d , while the lower plate 12 has running surfaces 12 ", I2 ^b and I2 ^C and ^{contact surfaces I2 d} and 12 ^. The stylus 3 initially runs on the surface ii ° and arrives in front of the surface 11 ⁶ , whereupon it jumps by axial displacement due to the pressure of the spring 6 at 1 i ^e onto the lower surface 12 "and continues on the surface 12 ⁶ and i2 ^c until it over the rising surface I2 ^d rises to the surface I2 ^C and starts the return path on the surface n ^{c of the plate 11.} At 12 'the stylus jumps onto the surface 12 * of the lower plate 12 and then slides along the surface I2 ^a . The pen now rises over the rising surface 12 * on the surface Ι2 ^{Λ of} the plate 12 and comes back against the sliding surface ii "of the plate 11, whereupon the process can be repeated. During the described path of the stylus with the tools attached to the same holder 13 and 14 the bore of the ring 15, which is shown in section in FIG * the shoulder 15 * of the ring is produced. By snapping the copying pen 3 onto the lower sliding surface 12 ″, the tool 14, which is arranged opposite to the tool 13, is brought into working position and machined ^{when the pin 3 slides along the surface 12 6} first the shoulder I5 ^{C of} the ring 15. The stylus then slides on the surface I2 ^C , the hole I5 ^{d being} rotated by the tool 14. At the end of the surface I2 ^C , the pin 13 now rises above the surface I2 ^d and comes against the surface n ^{c of} the upper template 11. The surface n ^c holds the two tools 13 and 14 approximately in the center of the longitudinal axis of rotation of the workpiece, so that neither the tool 13 is still the tool 14 is in contact with the workpiece. When reaching the edge 12 ^, the bolt 13 now jumps down and slides on the surface no 12 ", which is also in such a way that the tools are out of contact with the workpiece. Before the tool slide is reversed, the pin 13 now rises over the surface 12 ^ on the surface Ι2 ^{Λ of} the plate 12 and migrates back to the initial surface 11 °, whereupon the process is repeated.

8 and 9 show a template, which consists of three superimposed plates, which also when machining workpieces that are used at the same time or in the same operation can be machined with more than one tool. The top plate 20 is in both The longitudinal directions of the lower plates can be displaced, and their guide surface 20 ″ serves only as a limitation and to reverse the copy pen path. the

Plate 21 has guide surfaces 21 °, 2i ⁶ , 2i ^c , and plate 22 has guide surfaces 22 ", 22 *, 22 ^C , 22 ^rf and ^{ramp surfaces 22 e} , 22 'and 22 ^. The path of the stylus begins on surface 2i ^a , runs on the surface 21 ⁶ and slides at 2i ^d onto the surface 22 ^{6 of} the lower plate 22, this slides along to the surface 22 ^C and rises over the run- ^{on surface 22 e} to the run-on surface 2i ^{c of} the middle plate, this along up to Surface 20 "of the top plate 20 and is reversed by this so that it ^{slips at point 22 Λ} on the surface 22 '* of the bottom plate. It is then raised on the rising surface 22 'onto the surface 22' of the plate 22 and slides along the surface 2i ^{c of} the central plate. At point 22 ^{fc it} snaps down over the lowermost plate 22 and slides on surface 22 ″ to the beginning of surface 21 ″. When reversing, the pin now rises to the surface 22 ^{f of} the lowermost plate 22, and the process begins again.

As can be seen from these descriptions and the drawings, the possibilities of the copy pen guide and the possibilities for the execution of workpieces are manifold, so that the execution examples only show the way to suggest.

FIGS. 10, 11 and 12 show, for example, a template according to FIG. 1, which is used in particular for cutting threads. The upper plate 30 is arranged to be displaceable relative to the lower plate 31. To move the upper plate on the lower plate, in the embodiment according to FIG. 10, the upper plate is provided with inclined slots 33 and 33 ″ Sliders 35 screwed tightly into the slots 33 ″ on the lower plate, which hold the plate in a slidable manner and guide it precisely. In the plate 31 there is also a bolt 36 which is provided with a threaded nut head 37. A threaded spindle 38, which has a neck 39, engages in this threaded nut head 27. The neck 39 is arranged in a bearing 40 of the plate 30 and holds the spindle axially immovable, but rotatably fixed. The spindle 3 (S is provided with a handle 41, which has a scale 43, for example. When the spindle 38 is rotated, the upper plate is shifted on the lower plate. This makes it possible to determine the depth of cut with the upper plate, for example when thread cutting so that the thread can be cut or ground with multiple chip removal. However, the device can also be used for smooth shaped pieces, for example by pre-roughing the shaped piece with the first chip, then machined to size with the second chip can also be done by other means.

The two plates can of course also be firmly connected to one another on a base be slidably arranged so that with the

In the same process, the workpiece can be pre-roughed and finished in two or more work steps can.

Claims (8)

Patent claims: 1. copying device for machine tools, in particular lathes, with a button that controls the tool and a flat one Templates that guide the tool on a different path than on the idle path, characterized in that the template is one behind the other in the tactile direction and scanning edges at different heights for the working and idle paths of the tool has, which yields at the transition of the with a perpendicular to the stencil surface displaceable stylus provided button from the upper to the lower scanning edge each other cross, at the transition from the lower to the upper scanning edge with sloping surfaces are provided. 2. copying device on machine tools according to claim 1, characterized in that the template consists of several plates, each of which has at least one stylus contact surface having. 3. copying device on machine tools according to claims 1 and 2, characterized in that that the plates are firmly connected to each other. 4. copying device on machine tools according to claims 1 to 3, characterized in that that the plates are slidably attached to one another. 5. copying device on machine tools according to claim 1, characterized in that the template has stylus running surfaces, which the alternate control of more than enable a tool attached to a tool holder. 6. copying device on machine tools according to claim 1, characterized in that the template has an adjustable plate with a stylus guide surface, by means of which the Copy path can be limited in the longitudinal direction. 7. copier on machine tools, characterized in that one of at least two plates existing template for determining different depths of cut one the plates can be moved to the other by means of a screw and abless scale. 8. copier on machine tools, characterized in that the template for Determination of different depths of cut and movable on its base to lift the tool and is adjustable. Referred publications:
German patent specification No. 719 514. 1 sheet of drawings © 5267 7.