STANDER FUR BY ELECTRIC MOTORS PROPELLING HANDICRAFT THINGS MACHINES U.DGL.

The invention concerns a stand consisting for by electric motors propelled handicraft things machines u.dgl., of a baseplate, one at this fastened perpendicular guide column and one along latter adjustable Kragarm, to which the handicraft things machine is solvable fastened. Such stands are generally common and e.g. in the FR-PS Nr.946.849 descriptive; they are called drill stands. Drill stands rank today among the accessories of handicraft things machines, under which Stichund of Kreissägevorsätze as well as Drehund Schwingschleifvorsätze are to %verden emphasized. With handicraft things machines applicable Tellerschelben from rubber or plastic material is usual into the chuck, on which sandpaper discs are stretched. The disadvantage of these l0 dished washers is the large mass and the high number of revolutions of the grinding wheel, as well as the circular Schleifspur. Working with these disks is unmanageable, and they cannot be used during processing by small profiles. For the avoidance of these disadvantages are into the drill chuck of handicraft things machines clampable already let us sharpen roll suggested (S. e.g. the US-PS Nr.3, 418.764 and Nr.3, 774.354 as well as the DE-PS Nr.71470), which of a cylindrical hollow body is consist, on its NIantelfläche sandpaper is rolled up, to which the cylinder exhibits usually a lengthwise slot. With all these sanding rolls a being certain workpiece is presupposed, i.e. the handicraft things machine is along-led as a whole at the workpiece which can be worked on, whose situation does not change. In the case of use of a flexible drive shaft the handicraft things machine can remain clamped somewhere, and] edig] I the Handstück with der' SchleffwaLze is to be moved, which results in a substantial Kraftersparnis on the part of the operator. The well-known on one side clamped Schleifwa] zen shows however that much swore avoidable disadvantage of the run out of round, i.e. fodder axle and cylinder axle did not swear, so that the Sctfleifwalze full-leads usually a dutch roll, exact working with one another are thus not possible. On the other place there are Schleffmaschinen for Tischlereizwecke, with which the sanding roll 2s is reciprocally stored. Such machines e.g. in the US-PS Nr.1, 70], 815 descriptive and consist of a foundation, at that on the one hand by electric motors propelled a sanding roll stored at both ends of a cylindrical hollow body, which is descriptive e.g. in the US-PS No. 1.883.742 more near, covered with sandpaper, vertically arranged and on the other hand one kippund tiltable sill plate intended is, on which the workpiece can be abgestntzt and advanced to the Schleifwal2e. These machines guarantee an extremely exact working. The invention places itself the task to create the possibility of the use of a reciprocally stored vertical Schleifwatze and the associated advantages also in connection with a Handwerkzeugraaschine which can be clamped in a usual drill stand. This task is solved with a stand of the kind initially specified above all according to invention 3s thereby that for the use of reciprocally stored sanding rolls to the baseplate a camp, preferably an antifriction bearing, is solvable fastened. Preferably thereby the camp sits in a plate, which covers with a drilling the guide column and the baseplate of the stand rests upon. The camp can be equipped with an employment, into whose conical drilling a conical axle end of the sanding roll is applicable, of them other axle end in form of an actually well-known, cylindrical, for clamping tap certain in the chuck of the handicraft things machine is trained. With this execution form the Schleffwalze centers itself by simply lowering of the Kragarms automatically. After a further characteristic of the invention the camp at its lower surface is supported by means of a 4s preferably with a central drilling provided disk, which is embodied in a recess at the lower surface of the plate. The subject of the invention becomes in the following on the basis of two remark examples with reference to the designs more near besehrieben. In these Fig places. 1 the schematic side view of a handicraft things machine, in whose chuck a Schleifwal2e, s0 is clamped, held in a drill stand, against what the Fig.2 and 3 two training forms of the storage for the sanding roll at the baseplate show on average. Fig.1 shows a usual drill stand, consisting of a baseplate --1-- and a Nr.341897 guide column --2--, to some Kragarm --3-- , at that a Handwerkzeugmasehine is led --4-- by means of a clamping screw --5-- is held. The Kragarm --3-- is for his part at the guide column --2-- by means of a clamping screw --6-- attached and can after loosening this clamping screw --6-- freely on the guide column --2-- are shifted. The lever/feather/spring mechanism for lowering a part of the Kragarms --3-- against Kraft von Federn with tightened clamping screw --6-- for boring more near one does not describe here; this lever/feather/spring mechanism is by means of one in Fig.1 behind the Kragarm --3-- lying clamping screw --7-- blockable. In the chuck of the handicraft things machine --4-- is a Schleifwal2e --8-- over a cylindrical axle end fastened; at the other end of the Schleffwalze --8-- is a conical Achsstum, nel --9-- planned, with that the Schleifwal2e --8-- in a camp in the baseplate --1-- sits. For the assembly of the sanding roll --8-- becomes after loosening the Klemmschrauhe --6-- the Kragarm --3-- with the handicraft things machine fixed to it --4-- raised, the clamping screw --6-- again attraction, the sanding roll --8-- in the chuck fastens, after renewed loosening of the clamping screw --6-- the Kragarm --3-- lowered, to the conical axle end --9-- in the camp in the baseplate, intended for it --1-- and finally the clamping screw sits --6-- again attraction. Fig.2 shows the arrangement of the camp for the conical axle end --9-- the Schleffv; alze --8-- in a plate --10--, those with a drilling the guide column --2-- covered and on the baseplate --1-- rests upon. Against a turning the plate can --10-- e.g. through not represented, downward meeting projections/leads, those into several for fastening a machine vice in the baseplate --1-- intended slots intervene, or also e.g. by pins or clamps become secured. Into the plate --10-- is an antifriction bearing --11-- assigned, which - as represented - can be trained as the Kompenslerung of misalignments as self-aligning bearings. Into the internal race of the camp --11-- is an employment --12-- pressed, into its conical drilling of the axle ends --9-- the Schleifwal2e --8-- is applicable. That the sanding roll --8-- course-turned - upper - range of the employment --12-- serves as cover plate for the camp --11-- with one if possible meaning gap to the plate --10--. The camp represented schematically in Fig.3 --11-- is from that the sanding roll --8-- clearing away lower side of the plate --10-- inserted into these and becomes from a disk --13-- held, the one central opening --14-- exhibits and by means of screws --15-- at the plate --10-- is embodied, whereby the lower surfaces of disk --13-- and plate --10-- swore. Hiedurch is a good protection of the camp --11-- against foreign bodies and at the same time rapid developing of the camp to the cleaning and new greasing guaranteed.