DE1702730U - COPY MILLING MACHINE. - Google Patents

Description

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Kodak Public Company
Stuttgart.

Act. Toe. K 12 918/4913 & m.

G-username registration

"Copy - Milling Machine"

The firing relates to a copy milling machine which works according to the principle of pendulum transmission, which is known per se, using a pendulum cone as a towing shape. Numerous embodiments of this type are already known. The workpiece to be machined is arranged coaxially to the reference shape. In one S ¹ SlI, the guide cam works together with a guide roller which is mounted on the end of one leg of an angle lever, on the other leg of which the machining tool is located. In the other case, the copying template and thus the workpiece are arranged on a swivel arm which is printed onto a stationary sliding roller by means of a weight.

Now there is the need for that on one Workpiece two symmetrical surfaces at the same time using two tools that are not dependent on one another should be copied after a Seheibenkurve, so is so

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set a task whose solution idea is beyond the already known state of the art!

According to the innovation, to accommodate the workpiece a drum is provided, which is connected to the conchoid (reference shape), so that the workpiece is coaxial from two mutually arranged tools can be processed, one of which through a circular opening the conchoid, the other engages in the drum from the side opposite the conchoid.

By exchanging the tool with the roller, it is possible to use the template or the copying curve in a known way to mark as well as mill and / or grind after a masterpiece. To a fine Infeed movement for the milling cutter or grinding wheel for the To achieve the production of the stencil, the copier roller is mounted eccentrically With the bearing bush of the copier roll, a correspondingly small infeed of the eraser or grinding wheel is achieved.

An embodiment of a copy-milling machine is shown in the drawing. It shows:

From & .1 a diagram of the copy milling machine, Fig.2 a section through a copy-pre-machine

during the preaching process,
Fig.3 is a top view according to Fig.2.

The Masehinenfuss 1 carries a table top 2 on the upper part, which carries the bearing 2 for the rocker or pivot lever 5 * The latter is designed as a two-armed lever 3 ^a »3, the lever 5 ^a the

c b

Counterweight 3 for the lever holding the workpiece

"forms. The weight distribution of the two lever arms 3, 3 is such that the greater weight lies on the lever arm 3 receiving the workpiece 3.

In the box-shaped lever 3 of the

Rocker 3 supports the drum holding the workpiece 3

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3 t which is coupled with a drum drive motor 3 via a bath gear 3 ^. Axially to the 2rommelach.se 3 is the copying curve 3 ¹ »which has a circular through-

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has refraction 3 and its circumferential surface 3 on a G-guide roller 4 mounted in or on the table top 2 rests. The tool that consists of one or two presences or the like.

5 is also arranged on the table top 2

c h

Neten bearing blocks 2 supported »The pivot points 3 of the drum 3 ^€ , 5 ^{a of} the or, the prese 5 and 4 ^{a of} the G-guide roller 4 are approximately on one and the same circular arc 3 ^m pivoting around the rocker axis 3 (Fig.1).

The pushers 5 are driven by two

Motors mounted separately on the table top 6 For

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linlaing the workpiece 3 in the Sroinmel 3 is the Lever arm 3 of Yv'ippe 3 by a separate lifting device 7 raised * This is done by means of a

away

Cam 7, which is connected to the motor 7 ° via a gearbox 7, the cam 7 ^a "lifting the rocker 3 by the ^{roller 3 ° mounted on the boom 3 n of} the lever arm 3". The cam 7 ^{a of} the lifting device 7 is included rotated by 90 ° compared to the illustration shown in Fig. 2. In a known manner in the machine base 1 of the chip box 8, the coolant

Device 9, as well as the electrical switching device arranged.

Me working principle of the copy milling machine is following s

When the output "or Binrichtestellung workpiece in the dee! Drum 3 ^e is the lever arm of the rocker 3, lifted by the lifting device 7 5, wherein the cam disc 7 ^a thereof is rotated relative to the view in figure 2 by 90 °. The Motors 6 for the milling cutters ο «the like 5 can be in operation continuously or can only be started after the workpiece 3 has been inserted the I * age shown in Fig.2 rotated so that the workpiece 3 approaches the embossers or the like, 5.

The drive motor 3 started up early on, which controls the drum

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3 rotated with the workpiece 3. Through this

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The process slides the circumferential surface 3 eier copying curve 3 along the G-guide roller 4 until the opiervorgang after one drum revolution is finished. Then the curve 7 of the lifting gate 7 is rotated by 90 so that the lever arm 3 soäe the workpiece is raised, while the runs

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Srommelantriebsmotor 3 briefly turned in the opposite calibration Tung and d is _a nn. This ensures that the pre-process always begins a little before the theoretical end point and ends a little after the theoretical end point *

By means of switching devices, not shown, the curve 7 of the lifting device 7 is again reversed

Rotated 90 ° so that the lever arm 3 and the workpiece

d f c

3 raised and motors 3 and 7 shut down.

At the same time, the machine allows the copying curve 3 to be produced by the presser or the like. 5 is exchanged with the roller 4 and a master or ürstück is used instead of the workpiece.

lunraehr can copy the ütafang 3 of the pre-machined

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th copying curve 3 take place by moving the drum 3 is rotated slowly. The heister or original piece slides in place of the preseer (s) Get off.

Claims (2)

Protection claims 1.) Copy pre-machine, in which a pendulum cone is used as the reference form and in which the reference form and workpiece are pendularly guided on the same axis, characterized in that with the cone & e (3 ¹ ) one of the work pieces: & e (3) receiving Sroramel (3) is connected and the workpiece (3) τοη two axis oils I mutually arranged tools (5) is machined, one of which through a circular ^{opening (3 P} ) of the Koaßhoide (3) »& as the other of the the side opposite the conchoid (3 ¹ ) engages in the drum (3 ^S), 2.) Copy-milling machine according to claim 1, characterized in that to relieve the sliding roller (4) to the lever arm (3) receiving the workpiece (3) a counterweight (3 °) is provided, 3 ·) Eopier-Presmaschins according to claim 1 and 2, or one the same, characterized in that the the workpiece (3) receiving Sromael (3) his own HF * \\ Has drive motor (3 ) which is supported in the lever arm (3 5). Kodak Public Company In S-eneral Vollmaeht 63.4 / 1050