DE44646C - Turning and milling support with two tool slides guided by profile rails at the same time - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The innovations described below relate to turning and milling devices and aim that by means of two tools different or identical profiline turning surfaces can be edited at the same time.

Tool holders mounted on a support plate have already been used, e.g. B. when turning long transmission shafts, in order to make the pressure of the tools harmless against the bending of long transmission shafts. This support but were each set to the shared disk itself and in no W ^r else, neither in the longitudinal direction, in the transverse direction during the work period beeinflufst.

It is also known that support can be used, for example, in lathes for rifle stocks pressed by means of a roller against a rotating normal model by weight pressure and forces the same to close the profile of the gun stock in question in the longitudinal direction run through.

The device shown in the accompanying drawing enables, by means of the two tools w and w ¹ , to be able to work on turning surfaces with either different or the same profile at the same time, without having to use the expensive and cumbersome profile steels, as has been the case up to now.

In the accompanying drawing, FIG. 1 shows a transverse view, FIG. 2 shows a rear view and in Fig. 3 shows a partial top view of the new device. Fig. 4 shows a modification the same.

On the lathe bed B in a known manner, the support plate is mounted α, which can be gear \ and rack \ ^λ by means of handwheel h reciprocated. Furthermore, a short lead screw is arranged in front of the headstock, which is omitted in the drawing, which can be coupled in a known manner by a lock attached to the support plate α , so that an automatic longitudinal movement of the support plate α is made possible in a known manner.

The tool holder is α on the support plate in the transverse direction in a known manner displaceable b, which by means of a plate ^L is supported on α plate. Furthermore, BEZW on the tool holder b. on the plate a ^{l of} which the second tool holder c is mounted, which is displaceable in the same way as the tool holder b .

Each of these tool holders b and c carries a pull rod χ and y, which at the front end with a roller / bezw. / 'is provided.

The bearing bracket C, on which a flat plate g is attached, is now screwed to a suitable location on the bed B of the lathe. The plate now receives, according to the profile to be rotated, the steel and therefore little wear-resistant curved strips ρ and p ¹ , which are firmly and securely attached to plate g.

The tool holders b and c are finally pressed apart in their transverse direction by a compression spring f , so that they are forced to rest with their rollers / and / 'exactly on the curved strips ρ and ρ ^λ .

Claims (1)

The tool holders b and c are finally set up in such a way that they are provided with the adjusting screws s and d ό ' ¹ for precise adjustment to the axis of rotation. The mode of operation of the device described above is now as follows: After the component to be machined .4 is set between the centers of the lathe and fastened. the turning tools w and w 'of the tool holders b and c are adjusted exactly to the axis of rotation by means of the screws .9 and s ^l. In the device shown in Fig. 1 to 3, the turning tools are opposite to each other, and in this case it will be expedient to use one steel as scrubbing steel and the other steel as finishing steel. The slipport plate α is now coupled in a known manner to the lead screw of the lathe through the known lock, so that the plate α is forced to make the known automatic longitudinal movement. Since the two tool holders b and c are now influenced in the transverse direction on the one hand by the spring action f, on the other hand by the counter-position of the roller / and / 'against the fixed curve guide ρ and p ^l . so the turning tools w and w ¹ must run through the path prescribed by the curved bars ρ and p ^l during their longitudinal movement and turn off the resulting profile on the clamped workpiece A. At the end of the turning work, the support plate α is decoupled from the lead screw and the support plate α by means of the handwheel h. Gear ^ and rack ^ ¹ rotated back to their original position. If a new work item is now fastened again between the lathe tips, and if the tools) j 'and w ¹ , as described above, are again set exactly to the axis of rotation, the turning work can start again. In Fig. 4 of the accompanying drawing, a modification of the above-described device is made such that there are no two identical and symmetrical curved strips on the console C. but two unequal curves ρ and j? ^{1 are} attached. The tools are not facing each other here, but are offset from each other. With this modification, each tool works on its own special and different rotating surface, as can be seen on the rotating body F fastened between the tips. The above-described device is preferably suitable for the mass processing of profiled rotating bodies of any shape, and the latter is conditioned by the relevant curved strips ρ and p \ which can be fastened and replaced in the most convenient manner on the plate g. Pa τ 1: ν τ - A ν s ρ r υ c η: In turning and milling devices, the use of two tool holders b and c mounted on a common support plate α in such a way that they are influenced on the one hand by spring or weight pressure in the transverse direction, on the other hand by the curved guide attached to the frame of the machine during the longitudinal movement, for the purpose of to machine turning surfaces with different or the same profile at the same time with two tools. For this purpose ι sheet of drawings.