DE1929830A1 - Jig - Google Patents

Description

192983 Q Andrejewski & Honke patent attorneys

Physicist

Dr. Walter Andrejewski

-T ^ a-zr, / _mJ graduate engineer

Anwalfacts: 32 830 / T1 Dr-lng. Manffd Honk.

Essen, June 10, 1969 Kettwiger Strasse 36 (th)

Patent registration of the company

R. GAULT DEVELOPMENTS LIMITED

Forgings House,

Graham Road,

Sheffield, SlO 3GS / - England -

Jig.

Devices for clamping workpieces for the purpose of implementation of drilling, milling and other work are known in various designs. Difficulties arise above all for small and / or irregularly shaped workpieces where neither fixed support points as workpiece supports nor clamping bars or clamping lever or the like for holding the workpiece can be used, unless the supports and tendons are precisely designed to match the shape of the workpiece. then but such a device is only for a very specific one

ORlGfNAL 909851/0400

.Patent attorneys Dr. W. Andrejewskf, Dr. M. Honk ·, 43 Estonians, Kottwtger ^ fra

Workpiece and mostly only for a very specific processing suitable, so that such an effort is only worthwhile for the mass production of such workpieces.

The invention aims to remedy this by means of a clamping device, with the help of which small and / or irregularly shaped workpieces can be clamped quickly and reliably can and which quickly and easily without specialist knowledge of Clamping a wide variety of shapes can be converted.

To solve this problem, the invention proposes a clamping device before, which is characterized in that it has at least one end open version and in this Version with a large number of rod-free elements at this end is stacked up from the socket protruding ends and that arrangements are provided by means of which these rod-shaped Elements can be compressed by the workpiece to be clamped more or less pushed into the mount are.

These rod-shaped elements can be designed as solid rods or tubes, preferably hard-drawn wires of about 1.5 mm 0 are used, which are individually practically rigid or flexible only to a small extent, so that the entirety of all elements by more or less large mutual displacement can easily mimic an outline and / or profile.

When a workpiece from above on from the open end the socket protruding ends of the rod-shaped elements is pressed, it presses all the elements on which

■,. ■ ORiOiNALINSPECTED

909851/0400

Patent Attorney Dr. W. Andrafewskl, Dr. M. Henk ", 43 Ess" *, IfettWlgeF Stress>

it rests, down into the socket * while the remaining elements surrounding the workpiece © ine lateral Prevent shifting within the jig, whereby the arrangements, which press the elements together, only hardly noticeable lateral movements of the elements surrounding the workpiece allow and therefore result in a secure grip.

Such a device can also be used directly as Use the machining tool by pressing the protruding ends of the rod-shaped elements against a workpiece that the elements are inclined to the surface of the workpiece, some or all of the elements are shifted and by the overall arrangement in this position be fixed, sodai & i @ ends of these elements as teeth one A rasp, file or scraper will work.

To prevent the rod-shaped elements from being out of position can fall out, a resilient band is expediently arranged on the inside of the socket, which in a the inside of the socket formed annular groove arranged or on the inside of the socket around the end of the same, from which the state-of-the-art elements protrude, can be attached »

In order to compress the elements as a result of a displacement of some of them into the socket, various types of MkQTonvaofS & n can be provided, the design of which depends on the purpose of the device and on the desired tensioning force of the same

Z-iC > ■ ": * - ■ - Λ ** · - ,; · -; ·:.: BAD ORIGINAL

809851/0400

Patent Attorney Dr. W. Andrvfewskf, Dr. M. Honk ·, 43 Eisen, Kettwiger Straft »36

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0o the fit can, for example, be tubular, weak on the inside of its end facing away from the clamping surface tapered and a screwable on its other end, while the outer rod-shaped elements against the conical surface pressing union nut with retracted upper edge provided his »The outside of this union nut is expedient knurled for a better grip · .The inside tapered end of the fit can be open so that you bump against the elements from this side and they from the cone can loosen to bring them back to their starting position to push back «In general, however, one will Bring rod-shaped elements back to their original position in such a way that that one reverses the fit and pushes hard on the workbench or the like. On the inside they are tubular The fit is preferably in a corresponding annular groove Qummi-O-ring arranged, which presses the elements together and prevents them from falling out. The outside of this tubular The fit preferably has at least two flat surfaces lying opposite one another, eodaS the device in one Vice or the like «can be clamped. To pierce a workpiece clamped in such a device from above to be able to, is expediently a corresponding point in the mass of the rod-shaped elements at the corresponding point Socket inserted.

On the other hand, the fit can also be made rectangular, -which at least one inner wall, but preferably two opposing walls close to and parallel to the corresponding one Side of the open end are designed to be pivotable and in the .Outer wall of the fit an adjusting screw to adjust the

8AE> ORIGINAL

90SS51 / 0 400

Godfather weapon Dr. W. Andre [ewskF, EXr. M. Honita, 43 Elf en * Keftwiger Sf ro Se 36

The angle of inclination of the inner wall and the inner walls mdLt the rod-shaped Elements is screwed. Babei canoe, the other The socket can be designed to be open or non-volatile.

Again, the barrel can be circular, reentee-like or shaped in some other way, and at your dep clamping surface ©, at the end from which the rod-like elements Iieiraiaspagpn, opposite end are flowed, wotei dep Hanlpaiam! zwisclien this gescnlossenen end and the inner ends of the ¹ elements sawrie the Hoiilraiümi zsfiselien the · mass of sfcabfSrmigen elements iand the Seitenwän & s with small puzzle filled 1st whose BisiretonesseF ^ orzTügswelse about, the l, 5 ~ f ^a oils ^e DfES Bojarennsessers; the rod-shaped element is * sodaB, cieEm. Some of these rod-shaped elements allow a workpiece to be pressed into the holder, the clasps that were forced out, press other cones on the sides of the cash register of the elements and / or more forcefully against the uppermost elements, so that the articulation style is embedded in these rod-shaped elements a corresponding tension force is exerted. ¥ ¥ or2rogsweise kon ergieren The Innenwrinde amended via -wenigstens part inrei * Heike zxsm osffenen end, bel ~ play 1Q ° an.Jeder side socüaiä Sicli a regelreente Keilwlrkuaag the riund the Hasse mn of the rod-shaped Eleaieiate lying balls gives . Conveniently, it will aciflerdera the inside of the open end of the barrel; setoiaen conically sucked in, 'and

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with a slope of about 2 on each side,

the beneficiaries. rod-shaped elements precisely at the band of the open end of the Fagsuong rest "Uli zm -wernindern that in offeneB. At the end of the socket, bullets are clamped in front of the converging edge of the wall of the socket or the conically drawn-in inside of the open end of the socket

Patent attorneys Dr. W. Andrejewski, Dr. M. Hanke, 43 Eisen, Kettwiger Stia & e

Version elm paragraph with a smaller width than the Kugeldurebraßer designed "Wm to be able to adjust the tension of the shaping.". resp. to a clamped workpiece easily be able to back out of the ¥ © rriehtuug loose, in the wall of the socket a Stellsehraube can be eingesehraubt which protrudes into the ®it Säagela angpfSllten cavity, so that by OBShr or ¹ less strong Eineinsehrauben this screw of the cavity reduced BEZW . is enlarged and thereby the diameter of the balls on the rod-shaped elements and consequently aaeh. whose Ö-rifT on the workpiece is increased or decreased.

Ba die Kugeim den. Vollkomem cavity in an inserted workpiece fill in, the balls actually form a solid base for the rod-shaped elements and thus for the section itself, so that, for example, two such devices in the Jaws of a vice with pointed rod-shaped Elements can be installed and a Werkstack of irregular Fons * which in a normal vice with smooth. Klenmibaeken. could not be clamped, be sure to see can be clamped.

A more detailed explanation of the invention can be found in FIG the following description of five exemplary embodiments based on the enclosed. Drawings! show it*

Figure 1 is a perspective view of a small circular redden Jig!

FIG. 2 shows a view of the clamping device from FIG FIG. 5 shows a section through FIG. 2 along the line HI-UIi

., 0AD ORIGINAL

3Q3851 / 0400

Patent attorneys Dr. W * Asidiftfewskf, Or. M. Honkft, 43 Esten, KeHwiger Strasse 36

1.923830,

viner street 3

Figure 4 title perspective scooping out a larger rectangular one Jig;

Figure 5 is a plan view of the apparatus of FIG. Hi Figure 6 a section through FIG · 5 along the line VI-VII

Figure * J β ins η of Figure 6 corresponding section through a modification of a rectangular clamping device;

FIG. 8 a vise according to the invention in perspective !Depiction;

FIG. 9 shows the droofslofct on ¹ the vice according to FIG. 8 in partial section with a workpiece clamped;

FIG. 10 shows a side view of the vice in partial section along the line X * -x from FIG. 9i

Figure 11 is a side view of a power scraper with built-in inventive clamping device;

FIG. 12 is a partial view of this power scraper in partial section and

FIG. 13 shows the use of the power scraper during processing one

The clamping device 1 shown in Figures 1-3 has a tubular socket 2, one upper end 3 of which is open and is packed with a large number of rod-shaped elements h , which are so long that they can protrude amply beyond the upper edge of the socket, with a rubber O-ring 5 in one

909851/0400

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse

Annular groove 6 is arranged within the fit in order to prevent the elements from falling out. The other end ¹ J of the socket has a slightly conical inside narrowing 8, against which the external elements can be pressed by a union nut which is screwed onto the end j5 of the fit, and the outside 10 of which is knurled to achieve a good grip.

Because the external elements are pressed against the conical surface, as shown in FIG. 3 , a workpiece 11 pressed into the mass of the elements k from above is firmly gripped by the elements surrounding the workpiece. In order to be able to drill a hole ij5 in the workpiece, an. At the corresponding point, as shown in FIG. 3, a bushing 12 is inserted into which the drill end can penetrate after the workpiece has been pierced.

After loosening the union nut 9, the rod-shaped elements 4 can be pushed upwards from the conical surface 8, so that the workpiece 11 can be removed and. the elements return to their original position, or you can go to Removal of the workpiece and the device on a workbench or the like. Push open, so that the rod-shaped elements in their Slipping back from the starting position.

r -

In the example shown, the fit 2 has pairs opposing smooth surfaces 15 as side surfaces a hexagon so that the clamping device 1 can be clamped in a vice.

8AD ORIGINAL

9098 51/0 400

Patent attorneys Dr. W. Andrejewski, Dr. M. Hanke, 43 Essen, Kettwiger Strasse

The clamping device shown in Figures 4-6 has l6 a rectangular socket 2 with an upper open end 3 * which is packed full of a plurality of rod-shaped elements 4 while the other, i.e. the lower end 7 of this socket, is closed and the cavity between this closed end and the inner ends of the rod-shaped elements 4 and between the side walls of the socket and the entirety of these elements Im is essentially filled with small balls 17, so that if some of the elements 4 by a in the protruding η ends of the Elements pressed workpiece 11 are pressed inwards, the thereby-displaced balls other balls to the sides of the Press the entirety of the elements and / or press more forcefully against the external elements so that the workpiece is firmly gripped will.

The inside of the wall of the socket 2 converges in a part 18 on each side at an angle of 10 °, so that a proper wedge effect of the balls 17 is achieved around the seldom of the entirety of the elements. The inside 19 of the open end 3 of the socket has a bevel of 2 ° on each side, so that the outer elements touch the sides of the open end directly at the edge of the socket, but with a paragraph 20 between these converging inside l8 of the socket and the retracted inside 19 of the open end is provided to prevent balls from becoming trapped in the open end of the socket

An adjusting screw 21 is screwed into the side wall of the socket, which protrudes into the cavity filled by the balls, around them when they are screwed into the wall is to compress more and thereby the tension of the

909851/0400

Patent attorneys Dr. W. Andrefewski, Dr. M. Honfce, 43 Eisen, Kettwiger Strasse

₍ Kettwiger punishment 2

To strengthen the clamping device on the workpiece 11, or, if it is unscrewed, the pressure on the balls so that the workpiece can be easily removed®

The clamping device shown in Figure 7 also has a rectangular fit 2 with an open end, 3 and a closed lower end 7, wherein a plurality of rod-shaped elements 4 -yor äem falling out, if the device should be turned upside down, by a resilient must be protected by the elastic band 23, which is attached to the inside of the open end and has a hard coating 24. Near the open end and parallel to the corresponding sides of the same, inner walls 25 are pivotably hinged, with screws 26 passing through the outer walls of the socket 2 and allow the angle of inclination of the inner veins relative to the rod-shaped elements 4 to be adjusted so that the clamping force of the device can be adjusted to a workpiece 11 pressed into the mass of the elements.

The vice 27 shown in Figures 8-10 has a fixed jaw 28 and a movable jaw 29, which in longitudinal guides 30 on a lower part 31 by means a spindle 32 is displaceable by means of a hand crank 33 can be rotated, wherein in each clamping jaw 28 and 29 a device is used, which in principle of execution according to Figure 4-6, the rod-shaped elements In the jaws point towards each other, so that an unusual a firm grip can be achieved with an irregularly shaped workpiece 11 is which in a normally smooth jaw having a vice cannot be clamped.

909851/0400

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Ketfwiger Strasse

The power scraper 34 shown in FIGS. 11-13 has a reciprocating push rod 35 * which engages in a device 36 of the type according to the invention, whereby this The device has a sheet metal frame 2 with an inclined open end 3, which is stuffed with a large number of rod-shaped elements 4, which falls out through a rubber band 5 in a through a bulge in the wall of the sheet metal socket formed groove 6 are prevented. The other end 7 of this version is closed and due to the bulge for the groove 6, the device can be used in a carrier 37, which via the push rod 35 in the nose 38 of the Scraper 34 can be moved back and forth. A cavity between the inner ends of the elements 4 and the closed end 7 of the socket is filled with small balls 17. The outstanding Ends of the rod-shaped elements 4 are pressed against a workpiece 11, these elements towards the surface 39 of the workpiece be held at an angle so that some or all of the elements are shifted in such a way that the protruding ends act as teeth a rasp, a file or a scraper act according to the profile of the surface of the workpiece. The balls 17, which are displaced by the inner ends of the elements 4, press, from the side on the inner ends of the elements, so that these are held in their set positions, but with a strong pressure on the protruding ends of the elements in the longitudinal direction is sufficient to loosen the balls and release the elements if the profile of the tool to be machined changes.

Expectations:

809851/0400

Claims (1)

Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse Expectations . l) clamping device, characterized in that it is a has an open socket (2) at least at one end (3) and a plurality of rod-shaped elements in this fit at this end (4) is stacked with ends protruding from the top of the socket and that arrangements (8, 9; 17, 21; 25, 26) are provided, by means of which these rod-shaped elements are pushed more or less into the holder by the workpiece (11) to be clamped Conditions are compressible. 2. Clamping device according to claim 1, characterized in that that it has hard-drawn threats as rod-shaped elements (4). - 3. Clamping device according to claim 1 or 2, characterized in that a resilient band (5 or 23) preventing the rod-shaped elements (4) from falling out of the socket is arranged on the inside of the socket (2). 4. Clamping device according to claim 3, characterized in that the resilient band (5) is arranged in an annular groove (6) formed on the inside of the mount (2). 5. Clamping device according to claim 3, characterized in that the resilient band (23) on the inside of the socket (2) around the end (3) of the socket is made of soft the rod-shaped elements (4) protrude. SSI Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Keftwiger Strasse β. Clamping device according to one of Claims 1 to 5, characterized characterized in that the fit (2) is tubular, on the inside (8) of its end facing away from the clamping surface (7) is slightly tapered and one on its other end (j5) can be screwed, while the external rod-shaped elements (4) union nut (9) pressing against the conical surface with retracted upper edge is provided. 7. Clamping device according to claim 6, characterized in that that the union nut (9) has a knurled outside (10). 8. Clamping device according to claim 6 or J _1, characterized in that the end (7) of the fit (2) with the conical inside (8) is open. 9. Clamping device according to one of claims 6-8, characterized in that the fit (2) on the outside at least two having opposite flat surfaces (15). 10. Clamping device according to one of claims 1-9, characterized characterized in that in the mass of the rod-shaped elements a socket (12) is inserted. 11. Clamping device according to one of claims 1 - 5, "thereby characterized in that the fit (2) is rectangular and at least one near and parallel to the corresponding side of the open end (3) has pivotable inner wall (25) and that in the outer wall of the fit an adjusting screw (26) for Adjustment of the angle of inclination of the inner wall with the rod-shaped elements (4) is screwed in » 809851/0400 Patent attorneys Dr. W. Andrejewski, Dr. M. Honke, 43 Essen, Kettwiger Strasse 12. Clamping device according to claim 11, characterized in that that two ver pivotable inner walls (25), each with an adjusting screw (26) are provided., 13. Clamping device according to claim 11 or 12, characterized in that the socket (2) is closed at one end (7). 14 · »Clamping device according to one of claims 1 - 5, characterized characterized in that the socket (2) is closed at one end (7) and the cavity between the ends of the rod-shaped elements (4) and this closed socket end as well as the cavity between the mass of the rod-shaped elements and the side walls is filled with small balls (17). 15 clamping device according to claim 14, characterized in that that the inner walls of the socket (2) over at least a part (18) converge their height towards the open end (3). 16. Clamping device according to claim 14 or 15, characterized in that the inside (19) of the open end (3) of the socket is slightly tapered and thereby the outer rod-shaped elements (h) bear exactly on the edge of the open end of the socket. 17. Clamping device according to claim 15 or l6, characterized in that that between the converging part (18) of the inner wall of the socket and the conically drawn-in inner side (19-) of the open end (3) of the version a paragraph (20) with a smaller Width is formed as the diameter of the balls (17). 90 3 851 / Q4GQ 192883C / iger street Patent attorneys Dr. W. Andrejewsld, Dr. M. Honke, 43 Esten, Kettwiger Strasse 36 18. Clamping device according to one of claims 14-17 * thereby characterized in that in the cavity of the socket (2) filled with balls (17) a cavity extending through the wall of the fitting Set screw (21) protrudes. 19. Clamping device according to one of claims 14-18, characterized in that it is in each jaw (28, 29) of a vice is inserted and its rod-shaped elements (4) point to each other. PAe Dr AhdreJewski, Pr * Honke * 1/0 * $ 0