DE1060695B - Horizontal post-form milling machine with vertical, parallel movable milling carriage stand and clamping part - Google Patents

Description

GERMAN

Postform milling machines with horizontally lying milling spindles are usually constructed in such a way that milling slide stands and clamping angle or workpiece face each other in a vertical arrangement, wherein one of the two, usually the milling slide stand on heavy machines, on a bed parallel to the other is movable. The milling slide is arranged so that it can be moved vertically by a feed gear and carries the horizontally lying and also displaceable in this direction by a feed gear Milling spindle. The clamping angle is usually in two parts with mutually adjustable halves executed and picks up the workpiece on the lower part and the model on the upper part, that of the feeler is scanned. With a larger working area of the machine, the stand and clamping angle reach at this type of construction a considerable height and therefore have a strong tendency to vibrate, which is the case with stronger Makes chip removal particularly disturbing. Due to the superimposed position of the workpiece and model, the vibrations on the model and thus on the tactile device appear more strongly, than they are generated on the milling cutter. As a result, there is a risk that the sensing device will be considerably there are more commands than would be necessary according to the contour to be milled. This makes the machine restless, decreases in performance and the milling pattern deteriorates. To counter this, the The structure of the machine can be held much stronger than the stress caused by the milling cutter makes itself necessary. It is known per se for machine tools to have two stands or supports with one another connect to. In these machines, however, the interconnected parts lead during the work does not show any relative movement to one another, they are in the given position by a crosshead or firmly connected by struts. With boom drilling machines, you already have the outside End of the boom guided on a column, which is provided with its foot in a in the base plate circular guide and is jammed in the working position with this.

According to the invention it is proposed that a support member between the stand and mounting bracket on the one Part fixed and sliding on the other part in a guide. Through this measure, can the machine can be held more easily in its design and remains quiet. The sliding guide is advantageously arranged for the support member on a rail that can be set and locked on the mounting bracket. This eliminates the need to align the large and heavy clamping angle precisely to the guide surfaces of the bed for the milling carriage stand.

Horizontal postform milling machine

with vertical,

movable parallel to each other

Milling slide stand and clamping part

Applicant:

Heyligenstaedt & Comp.,

Machine tool factory G.m.b.H.,

Giessen / Lahn

Johann Maas, Giessen / Lahn,
has been named as the inventor

According to a further detail of the invention, the StützgMed consists of a longitudinally displaceable, in Storage on the milling carriage stand and on the mounting bracket supported and fixable rod. In general it is advantageous to arrange the support member at the level of the upper end of the mounting bracket, there This is where the vibrations have the greatest impact. According to a detail of the invention, it is also proposed that to arrange the support member at the level of the upper end of the workpiece mounting bracket. Particularly This measure is useful if z. B. the milling machine, even without post-forming device, as Drilling and milling machines are used for heavy work.

The support can also consist of a triangular connection, for example two support rods, whose one end at a common point of the part sliding on the mounting bracket and its opposite end Ends are stored at a distance from each other on the milling carriage stand. Especially with large ones Distance of the milling carriage stand from the platen, this measure contributes significantly to the Support device easy to hold.

An exemplary embodiment of the invention is shown schematically in the drawing.
Fig. 1 shows an overall view,
Fig. 2 the support device from above and

9C9 559/233

Claims (6)

Fig. 3 shows a further embodiment of the support device seen from above. A bed slide 2, which carries a milling slide stand 3, is slidably mounted on a bed 1 via a feed mechanism (not shown). The drilling and milling slide 4 is mounted on this via a feed gear so that it can be moved vertically and a spindle carrier 5 with spindle 6 and milling cutter 7 is mounted on this again in a similar manner . A bed 10, on which a workpiece mounting bracket 11 with workpiece 12 is arranged, lies parallel to bed 1. At the upper end of the workpiece mounting bracket 11, an intermediate piece 13 is attached and on this an adjustable and lockable mounting bracket 14 that receives the model 15. A pin 16 (FIG. 2) is seated at the upper end of the mounting bracket 14 and a rail 17 with guides 18 and 19 can pivot about it and set. Likewise, similar devices can be provided for the rail 17 in the vertical plane in order to make the precise trimming and alignment of the heavy clamping angles unnecessary. A slide 22, into which a support rod 23 can be inserted and fixed, slides on the guides 18, 19. The support rod can be displaced in a bore 24 on the milling carriage stand and can be fixed by screws 25, 26. On its underside, the support rod is provided with a toothing 27 in which a pinion 28 engages, which is driven by a motor 31 via a worm gear 29, 30. In FIG. 3, the slide 22 is in turn displaceable on the rail 17. This slide is provided with a pin 35 on which support rods 36, 37 engage, which connect the slide 22 to the milling carriage stand 3. For this purpose, 3 bearing blocks 38 and 39 are rotatably arranged on the milling carriage stand, which carry eyes 40, 41 which receive the support rods 36, 37 and in which the latter can be clamped by screws 42, 43, 44, 45. Claims; 1. Horizontal post-shaping milling machine with a vertical, parallel to each other movable Milling slide stand and clamping part, characterized in that a milling slide stand (3) and clamping part (11, 14) connecting to one another, fixed to the milling carriage stand (3) and to the clamping part (11,13,14) slidably mounted intermediate member (23, 36, 37) is arranged. 2. Device according to claim 1, characterized in that the sliding guide for the support member (23, 36, 37) arranged on a rail (17) which can be adjusted and fixed at the clamping angle is. 3. Device according to claims 1 and 2, characterized in that the support member consists of one that can be moved lengthways and is mounted in bearings on the milling carriage stand and on the mounting bracket and fixable rod (23). 4. Device according to claims 1 to 3, characterized in that the supporting device is arranged at the upper end of the clamping device (14). 5. Device according to claims 1 to 3, characterized in that the supporting device is arranged at the level of the upper end of the workpiece mounting bracket (11). 6. Device according to claims 1, 2, 4 and 5, characterized in that the support from a triangular connection consists, for example, of two support rods (36, 37), one end of which at a common point (35) of the part (22) sliding on the mounting bracket and the opposite one Ends are supported at a distance from each other on the milling carriage stand (3). Considered publications:
German patent specifications No. 607 282, 669 759,
694; Austrian Patent No. 170 912;
Swiss Patent No. 255 163;
U.S. Patent No. 2,128,960. 1 sheet of drawings ® 909 559/233 6.59