DE3100826A1 - Milling machine with spindle heads movable in several coordinates - Google Patents

Description

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LINE S.A.

64, rue Hoche

F-80300 Albert / France

"Milling machine with spindle heads movable in several coordinates".

The invention relates to a milling machine with a machine frame on which horizontally and in the longitudinal direction a stand is displaceable, on which at least one slide is arranged so as to be vertically movable which in turn a boom is arranged horizontally and displaceably in the transverse direction.

Milling machines with a machine frame are known on which a stand is horizontally displaceable, which has a vertically movable slide on which in turn, a horizontally displaceable boom is attached, which has a machine spindle at one of its ends owns. With a milling machine of this type, only a single workpiece can be used in one operation to be edited.

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In certain cases it can be advantageous to use the same machine for a large number of workpieces to edit. The invention is therefore based on the object of creating the prerequisites for this.

The task at hand is solved at the beginning Milling machine described according to the invention in that the boom has a spindle head at each of its ends is provided, in which a milling spindle is mounted.

The subject of the invention brings a significantly enlarged Productivity with it. It is possible in practice, depending on the number of milling spindles available Simultaneously process 2, 4, 8 or 16 workpieces thanks to the possibility of working at each end of the boom To arrange milling spindles. It is also possible while machining some workpieces to change others. In addition, in a particularly advantageous exemplary embodiment, it is possible to Tools (milling cutters) on at least 8 milling spindles ti are attached to be replaced at the same time.

Other features and advantages of the invention will be explained in more detail below with reference to FIGS. 1 to 6.

Show it :

1 shows a side view of a milling machine according to a first embodiment,

2 shows a plan view of the milling machine according to FIG Fig 1,

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3 shows a section through an exemplary embodiment a tool changing device,

Fig. 4 is a plan view of a second embodiment of the subject matter of the invention with a Boom that has several spindle heads at each end,

5 shows a plan view of a third exemplary embodiment of a milling machine with rotatable clamping tables and

6 shows a plan view of a fourth exemplary embodiment of a milling machine according to the invention

The milling machine according to FIGS. 1 and 2 has a machine frame 1 with horizontal guides 2 which a stand 3 is movable. The vertical stand 3 has vertical guides 4 on which a slide 5 is arranged so as to be vertically displaceable, in which in turn a boom is horizontally displaceable 6 is stored. The boom 6 is provided at each of its ends with spindle heads 7 and 7a, in which each a milling spindle 8 is mounted.

On each side of the machine frame 1 are two clamping tables 9 and 10 or 9a and 10a, between each of which has an automatic tool changing device 11 or 11a is arranged in such a way that the spindle

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heads 7 and 7a can be seen both over the clamping ti 9 and 10 or 9a and 10a move as via the tool changing devices 11 or 11a.

The tool changing devices 11 and 11a as shown in FIG consist of a support 12 on which a plate 13 is rotatably arranged, which is supported by a not shown Motor can be set in rotation by a control device depending on the work flow the milling machine is controlled.

The plate 13 has receptacles 14 into which tools 15 are inserted, which are moved by means of a collar 16 support on the plate 13. A housing 17 is provided above the plate 13, which has openings 18 has for the entry of the milling spindle 8 of the spindle head concerned.

The device described enables the machining of workpieces by means of the spindle heads 7 and 7a carry out the work on the clamping tables 9 and 9a are attached. By moving the stand 3 on the machine frame 1, it is possible to exchange the two tools at the same time, while the spindle heads 7 and 7a are located above the tool changing devices 11 and 11a.

Then the shift of the carrier 3 on the machine frame 1 is continued until the spindle heads 7 and 7a above the clamping tables 10 and 10a are located in order to process two new workpieces there, which are placed on the clamping tables mentioned are attached.

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In Fig. 4 is another embodiment of a milling machine shown, which consists of the same parts as the embodiment described above, but are at each end of the boom 6 on the two opposite sides of the boom 2 pairs of spindle heads 19 to 19c and 20 to 20c arranged.

In this embodiment, the arrangement is as follows Clamping tables 9, 9 a and 10, 10 a and the tool changing devices 11, 11 a are identical to that in FIG. As a result, the tool changing devices 11, 11a enable the tools at 8 to be exchanged automatically Milling spindles. The Werkzeugwectisel devices can be replaced by 4 magazine drums, of which each one supplies a spindle head.

In Figures 5 and 6, two variants of the embodiment of the milling machine are shown in which the Stand 3 on its two opposite sides is equipped with two carriages 5 and 5a. The sleigh are vertically synchronously movable and each carry a boom 6 and 6a, which at each of its ends with four Spindle heads 19 and 20 is provided, as shown in Fig.5 is shown, or with a single spindle head or 7a, as explained with reference to Fig. 6.

For the processing of identical workpieces (16 workpieces), the movements of the boom are synchronized while they are in opposite directions for machining symmetrical parts.

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In the two exemplary embodiments, there is a single clamping table 21 or 21a on either side of the machine frame arranged. This clamping table can be moved in a translational and rotational movement, to enable the processing of further clamped workpieces, while at the same time new workpieces be clamped for processing. In addition, tool changing devices are located at the two ends of the clamping tables 21 and 21a 22, 22a. and 23, 23a of the type described above.

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Claims (5)

"ROMAU-3, den 1 2, .1 <*"" _M -111/67 Expectations Milling machine with a machine frame on which a stand can be displaced horizontally and in the longitudinal direction, on which at least one slide is arranged so as to be vertically movable, on which in turn an arm is arranged such that it can be displaced horizontally and in the transverse direction, characterized in that the arm (6,6a) is provided at each of its ends with at least one spindle head (7,7a; 19-19c; 20-2Oc) in which a milling spindle (8) is mounted. 2. Milling machine according to claim 1, characterized in that on each side of the machine frame (1) two clamping tables (9,10; 9a, 10a; 21,21a) are arranged, between which an automatic tool changing device (11,11a) is arranged. t. 3. Milling machine according to claim 2, characterized in that the tool changing device (11, 11a; 22,22a; 23,23a) has at least one pivotable plate (13) which is provided with receptacles (14) for the tools (15) is. 4. Milling machine according to claims 1 and 2, characterized in that the stand (3) is equipped with two carriages (5,5a) which are placed on two gogeriüberl sides 130060 / ÖUS 111/67 of the stand are arranged vertically movable synchronously and each one horizontally displaceable Boom (6,6a) have which at each of its ends with at least one spindle head (7,7a; 19; 20) is provided with a milling spindle. 5. Milling machine according to claims 1 to 4, characterized in that a clamping table (21,21a) is arranged on each side of the machine frame (1) which is movable by a combined longitudinal and pivoting movement so that a clamping of new workpieces during machining is possible, and that at each end of a clamping table (21,21a) an automatic tool changing device (22,23; 22a, 23a) is arranged, by means of which a simultaneous change process of all tools (15) or milling spindles (8) can be carried out is. 130050 / OU3