DE19936700A1 - Device for working on ring comprises base on to which ring is fitted, sleeve which is inserted in bore in center of base, leaving annular space which is filled with curable material after which sleeve is mounted on mandrel - Google Patents

Abstract

The device for working on a ring comprises a base (4) on to which the ring (3) is fitted. A sleeve (2) is inserted in a bore in the center of the base and the annular space between the ring and the sleeve is then filled with curable material. The combination of ring and sleeve is then mounted on a mandrel (1) using a screw. An Independent claim is included for a process for working on a ring using the device.

Description

State of the art

Goldschmiede usually works with old and proven craft techniques. This Techniques are used to make one-off pieces, including forging, sawing, soldering, driving, pulling, rolling, filing, grinding, lapping, etc.

To give a ring rail its shape, the ring to be machined is either in one Vise clamped or held by hand and with files, drills, milling, Sandpaper and other tools processed until the desired shape is reached. This requires detailed knowledge of the tools used, a high level Level of intuition, skill and sense of proportion and last but not least a lot of time. Good results can only be achieved by working in goldsmithing for many years to reach.

On the other hand, it is also tiring and uncomfortable to work with the ring band to be machined either always turn in the vice to get to the unprocessed areas or the piece of jewelry again and again when working with the bare hand have to put aside because it heats up due to friction during machining.

It is also difficult on a ring z. B. to install an even bevel because only part of the ring can be seen in its round shape.

Goldsmiths need for the processing of their ring bands, and around that required accuracy to achieve a lot of time. That's why many buy these days Goldschmiede the desired ring band in the jewelry industry and refines it by soldering profiles or attaching frames for stones etc. The jewelry industry, for its part, first produces a metal prototype and reproduces it this by means of silicone castings.

With this method it is possible to have hundreds or thousands of the same in a short time To produce ring rails. These are then used in the large goldsmith workshops Precisely ground and polished with the help of a lapping machine. Lapping machines do indeed  however, the task of giving a ring band an exact shape is for the individual Goldsmith not profitable because it is too expensive.

Description of the invention

The stated invention is based on the problem of a device for time-saving and exact processing of individual plastic or wax ring bars and the Show elaboration of the cast ring band.

This problem is solved with those listed in the independent claims Features resolved.

A first embodiment of the invention provides a base body for attaching the annular body in front, the body means for centering and limiting the Depth of penetration of the annular body; a centric shot that on Base body is arranged centrally to the annular body, the between annular body and centric receptacle remaining cavity with a curable filling material is fillable, and a shaft in which the central receptacle can be clamped together with the annular body. The arrangement consisting of the centric receptacle and the annular body is driven by means of the shaft clamped for rotating machining of the annular body.

The device allows to use different components that are already in the older Application of applicant DE 199 08 956 "Roh-Ringußsystem" are described and allows a centrally aligned clamping of a ring in order to rotate it to edit.

With the invention it is achieved that through the combination of central recording, Base body, sleeve, and shaft ring rails made of plastic, wax, metal, etc. individually can be designed.

Using the device according to the invention for the production of individual pieces and thus being able to process rings in rotation has the following advantages:

• 1. Rings can be processed absolutely precisely due to their constant rotation → exactly
• 2. Since the rings can be machined before casting, there is hardly any metal loss → cheap  
• 3. Because the grinding tool is only held against it to machine a ring must be and the rotational speed is adjustable, you save time and Abrasive wheel → time-saving
• 4. The ring to be machined is not in your hand. The resulting from the processing Heat is no longer transferred to this → more pleasant work
• 5. The surface structure becomes more even
• 6. By appropriately clamping the ring, the inside of the ring can also can be processed precisely and quickly.

Thus, the purchase of ring rails, rings by this invention for the user for the production of individual pieces unattractive, since it is now without metal loss, without time-consuming re-tensioning, re-checking and reworking without the uncomfortable Having to feel heat on the hand achieves the highest level of precision and quality. Clamping the grinding wheels at certain angles and inclinations makes a enables precise placement of angles and chamfers on the ring surface.

Further embodiments of the invention are the subject of the dependent claims.

In a preferred embodiment, the shaft consists of a central receptacle attachable mandrel. This can easily be connected to the central mount and in a rotating drive can be clamped.

Alternatively, the shaft can be designed to be stationary and directly with a drive be connected. This enables the ring to run even more smoothly. The base body is preferably a cylinder with the same inner diameter as that annular body formed. This cylinder can e.g. B. the "raw Ringußsystem" of From the applicant.

The means for centering and limiting the depth of penetration is advantageous over the Outer circumference of the cylinder slip sleeve, which is also already in the "raw ring nut system" of the applicant is present.

Alternatively, a collar arranged on the outer circumference of the cylinder can be provided. In a development of the invention, a separate receptacle is provided, with which the central recording can be clamped perpendicular to for a while. This enables the  Users rotating a ring across and thus attaching horizontal stripes, chamfers, Grooves etc.

In a second embodiment of the invention, one is arranged on a shaft Inner cone provided; one that can be plugged in and moved over the inner cone conical outer sleeve, the outer diameter of which corresponds to common ring sizes Has gradations, with each gradation distributed over the scope of Outer sleeve holes are provided; an annular clamping device that the to machining ring-shaped body carries and can be pushed to a desired gradation and is in contact with the inner cone via the holes; and Locking means for shifting and fixing the outer sleeve relative to the Inner cone such that the annular body is centered on the clamping means Outer sleeve can be clamped so that the ring-shaped body can be rotated can.

The second embodiment provides the user with a compact work tool which he ect every ring size, without plaster, silicone or plastic. as filling material for the Cavity can be centered centrally.

In a preferred embodiment, the clamping means consists of an annular one flexible band, on the circumference of which balls are arranged which extend over the holes come into contact with the inner cone.

Brief description of the drawing

The invention is based on several exemplary embodiments with reference to the Drawing figures described in more detail. Go out of the drawings and their description further features and advantages of the invention.

Show it:

Fig. 1 mandrel 1 , central receptacle 2 , ring 3 , cylinder 4 and sleeve 5 ;

Fig. 2 With cylinder 4 and sleeve 5 centrally aligned ring 3 ;

Fig. 3 Fig. 2 with inserted receptacle 2 and the resulting cavity 6 between ring 3 and receptacle 2 ;

Fig. 4 between the ring 3 and receptacle 2 filled with a filling material 7 cavity 6 and the mandrel 1;

Fig. 5 by means of the receptacle 2 and mandrel 1 is clamped in a drive 8 for the rotating machining ring 3;

Fig. 6 is a ball bearing mounted in a plate 9 shaft 10, a shaft 10 attachable to this receptacle 11 to be machined ring 3, movable or fixable slide 13 angularly adjustable grinding body 14 and a shaft 12;

Fig. 7 Fig. 6 with a shaft 15 to which a receptacle 16 can be attached, and a receptacle 17 ;

Fig. 8 outer cone (sleeve) 18, bores 19, the inner cone 20, fixing screw 21, the cavity 25 between the inner cone 20 and outer cone 18 and the strained ring 3;

Fig. 9 The balls 22 which are held together with a band 23 ;

Fig. 10 shows a cross section of FIG. 8 with inserted ball belt (FIG. 9), ring 3, the outer cone (sleeve) 18, the inner cone 20, bores 19, balls 22 and stop 24.

Description of the embodiments

A first embodiment of the invention is shown with reference to FIGS. 1-5. In order to be able to work with the invention, in addition to the central receptacle 2 , a mandrel 1, a cylinder 4 and a sleeve 5 are also required (cylinder and sleeve can, for example, be taken from the applicant's "raw ring soot system") and the ones to be machined Ring 3 .

First, the cylinder 4 matching the diameter of the ring 3 and the sleeve 5 matching the cylinder are selected. Now the ring 3 , regardless of whether made of plastic, wax or metal, can be placed on the cylinder 4 in such a way that the ring 3 is only about 1/3 in width on the cylinder 4 .

Now the matching sleeve 5 is attached to the cylinder 4 from the side on which no ring 3 is seated and pushed on the cylinder 3 until it has aligned itself vertically and horizontally.

The sequence up to this point is shown in FIG. 2.

Now, Fig The centric holder 2, according to. 3 inserted into a central bore of the cylinder 4. The resulting cavity 6 between the central receptacle 2 and the ring 3 can now be filled with a suitable filler material, depending on the material of the ring 3 .

Now the so-centered centrally strained ring 3 4 Fig invention. Withdrawn after hardening of the filling material 7 from the cylinder and mounted on a mandrel 1 by means of the central receptacle 2.

After this step, the ring 3 , which is thus centered in the center, is clamped in a drive 8 according to FIG .

A development of the invention is explained with reference to FIG. 6. The center-center mounting of the rings works here according to FIGS. 2-3 only with the difference that the center mounting 11 is introduced here in a permanently installed shaft 10 with ball bearings.

The shaft 10 in turn is fixed in a plate 9 , which is firmly mounted in the workplace. On a further shaft 12, which is also fixed to the plate 9 , grinding wheels can be clamped in a slide 13 which can be moved and fixed thereon, which in turn can be rotated and fixed therein.

The development of the invention is explained with reference to FIG. 7. The center-center receptacle of the ring 3 in turn functions according to FIGS. 2-3, only with the difference that the center receptacle 16 can be introduced into a working device according to FIG. 6 in such a way that the ring 3 can be rotated transversely. This is achieved by attaching the ring 3 , which is tensioned centrally and centrally by the central receptacle 16 , to a receptacle 17 .

This receptacle 17 can be fixed in the shaft 15 so that the ring 3 and shaft 15 rotate about the same axis and thus a concentricity of the cross-rotating ring 3 is guaranteed. A second exemplary embodiment of the invention is explained with reference to FIGS. 8-10.

This is a working device which allows a ring 3 to be aligned and clamped in the center without a central receptacle 2 , 11 and 16 and without a filler material 7 . The device essentially comprises an inner cone 20 with a conical outer sleeve 18 slidably fitted thereon, and a spherical band 23 for central clamping of the ring 3 to be machined.

First one ball belt 23 illustrated 9 inside out in FIG. On the conical outer sleeve 18, leaving the tape 23 in the snap ring to the size of the matching to be machined ring 3 holes 19 on the outer sleeve.

Now the ring 3 is also placed on the outer sleeve 18 and guided to the point at which the spherical band 23 lies in the bores 19 .

The ring 3 is now pushed over the ball hinge 23 up to the stop 24 .

If the ring lies evenly on the stop 24 , the locking screw 21 , which sits on a thread of the inner cone 20 , can be tightened.

As a result, the cavity 25 between the inner cone 20 and the outer sleeve 18 is reduced and the balls 22 of the ball hinge 23 are pressed outwards, where they meet the ring 3 and clamp it centrally on the outer sleeve 18 .

Via the stub shaft attached to the inner cone 20 , the arrangement can be clamped in a drive 8 in order to be able to machine the ring 3 in rotation. Here, too, a permanently installed, compact implement is possible, which does not require the cones to be clamped in place and, with a counter bearing, enables the ring to be machined to run absolutely.

Drawing legend

1

Mandrel

2nd

centric recording

3rd

ring

4th

cylinder

5

Sleeve

6

cavity

7

filling material

8th

drive

9

plate

10th

wave

11

centric recording

12th

wave

13

carriage

14

Grinding wheel

15

wave

16

centric recording

17th

Recording piece

18th

Outer cone (sleeve)

19th

Holes

20th

Inner cone

21

Locking screw

22

Bullets

23

tape

24th

attack

25th

cavity

Claims (12)

1. Method for machining annular bodies, characterized by the steps:
Plugging the ring-shaped body onto a base body, centering and limiting the depth of penetration of the ring-shaped body being carried out by suitable means;
Arranging a central receptacle on the base body centrally to the annular body;
Filling the cavity remaining between the annular body and the central receptacle with a hardenable filling material;
Removing the assembly comprising the filled annular body and the central receptacle from the base body;
Clamping the arrangement using the central mount on a shaft
Clamping the arrangement by means of the shaft in a drive for rotating processing of the annular body. 2. Device for machining annular bodies, characterized by
a base body ( 4 ) for attaching the annular body ( 3 ), the base body ( 4 ) having means for centering and limiting the depth of penetration of the annular body ( 3 ),
a central receptacle ( 2 ) which is arranged on the base body ( 4 ) centrally to the annular body ( 3 ), the cavity remaining between the annular body ( 3 ) and the central receptacle ( 2 ) being fillable with a hardenable filler material ( 7 ),
a shaft ( 1 , 10 ) into which the central receptacle ( 2 ) can be clamped together with the annular body ( 3 ). 3. Apparatus according to claim 2, characterized in that the shaft is designed in the form of a mandrel ( 1 ) which can be fastened to the central receptacle ( 2 ). 4. The device according to claim 2, characterized in that the shaft ( 10 ) is fixed and directly connected to a drive ( 8 ). 5. Device according to one of claims 2 to 4, characterized in that the base body is a cylinder ( 4 ) with the same inner diameter as the annular body ( 3 ). 6. Device according to one of claims 2 to 5, characterized in that the means for centering and limiting the depth of penetration is a sleeve ( 5 ) which can be put over the outer circumference of the cylinder ( 4 ). 7. Device according to one of claims 2 to 5, characterized in that the means for centering and limiting the depth of penetration is a collar arranged on the outer circumference of the cylinder ( 4 ). 8. Device according to one of claims 2 to 7, characterized in that a receiving piece ( 17 ) is provided with which the central receptacle ( 16 ) perpendicular to the shaft ( 15 ) can be clamped. 9. Method for machining annular bodies, characterized by the steps:
Provision of a rotatable arrangement consisting of an inner cone arranged on a shaft and a conical outer sleeve which is pushed over the inner cone and can be displaced thereon, the outer diameter of which has gradations corresponding to common ring sizes, bores ( 19 ) being provided in the region of each graduation distributed over the circumference of the outer sleeve;
Sliding an annular clamping means onto a desired gradation of the outer sleeve, such that the clamping means comes into contact with the inner cone via the bores;
Pushing the ring-shaped body to be machined onto the clamping device:
Moving and fixing the outer sleeve with respect to the inner cone such that the annular body is clamped centrally on the outer sleeve by pressure of the inner cone on the clamping means and can be machined in rotation. 10. Device for machining annular bodies, characterized by:
an inner cone ( 20 ) arranged on a shaft;
a conical outer sleeve ( 18 ) which can be plugged over the inner cone ( 20 ) and displaceable thereon, the outer diameter of which has gradations in accordance with common ring sizes, bores ( 19 ) being provided in the region of each graduation distributed over the circumference of the outer sleeve;
an annular clamping means ( 23 ) which carries the annular body ( 3 ) to be machined, can be pushed onto a desired gradation and is in contact with the inner cone ( 20 ) via the bores ( 19 ); and
Locking means ( 21 ) for displacing and fixing the outer sleeve ( 18 ) relative to the inner cone ( 20 ) in such a way that the annular body ( 3 ) can be clamped centrally on the outer sleeve ( 18 ) by the clamping means ( 23 ). 11. The device according to claim 10, characterized in that the clamping means consists of an annular flexible band ( 23 ), on the circumference of which balls ( 22 ) are arranged which come into contact with the inner cone ( 20 ) via the bores ( 19 ) . 12. The apparatus of claim 1 to 10, characterized in that on a shaft 12 in a carriage 13 which can be moved and fixed on it, grinding wheels 14 are clamped, which in turn can be rotated and fixed in this.