FI90742C - Tool ring, procedure for making the same and holder - Google Patents

Description

i 90742

A jewelery ring, a method of making it, and a pitot girl

The present invention relates to a splice ring 5 for securing workpieces in a machine specially designed, for example, for the production of nails and the like, which comprises a pair of rotating rings, the opposite flat side surfaces of the rings being formed by a plurality of holding tools arranged so as to: the elongate workpiece may be secured substantially radially to the grooves of the pair of gripping strips in said respective rings, and wherein at least one ring has an annular groove adapted to receive the holding tools. The invention further relates to a method for manufacturing such a tool ring, as well as to a holding tool for attaching a workpiece to a ty6 tool ring which handles holding rods and scaffold tools, and to handling a workpiece by applying a force in the longitudinal direction of said workpiece. parallel to said sub-side, and formed on a track for receiving an elongate workpiece and holding it against a longitudinal force, said track extending radially 25 with respect to a pair of opposite end faces, at least one of which is convexly curved and adapted to silence said longitudinal force on a cylindrical support surface for a few holding tools, said end faces extending transversely to the side and the bottom side, said tool further a pair of opposite side surfaces. DK patent application 143 965 describes an example of such a machine.

The number of holding tool halves in each ring can generally be from 20 to 40, and the holding tools 2 have hitherto been mounted in place by shrinkage, each ring having a plurality of preformed axial cutting grooves which fit exactly with the holding tools. It is clear that the manufacture of these known tyO-5 fishing rings is very expensive due to tolerance requirements, especially when the radial distance of the cutting grooves from the center of the tire, when determining this distance from the radial position of the holding tools, is critical. Manufacturing costs are a very important factor, as known tool rings usually have to be replaced completely if only one of several holding tools or the tire grooves are defective.

The object of the present invention is to provide a tool ring of the type described for use, which is considerably cheaper to manufacture and which can also be serviced at a lower cost.

This object is achieved by a tool ring according to the invention, characterized in that the spacer tools are arranged to be fastened relative to the groove between the holding tools, and that each holding tool and its adjacent holding tool comprise a plurality of tools. attachable to the intermediate pair of tools, forcing the holding tools to join the groove mating surface, which surface is aligned coaxially with the ring axis. After forming said groove, the ring can be attached, for example, to a ball bearing similar to a ball bearing held in a known machine, enabling in a very inexpensive manner the exact dimensional deviation of the groove wall to determine the radial position of the tools.

It is clear that this is a much better solution compared to making 20 to 40 cutting grooves for each work ring. A further advantage of the tool ring according to the invention is that the defective holding tool can be replaced relatively easily only by removing it at a fixed distance.

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90742 3 la tools in the vicinity of the defective holding tool and by replacing this holding tool.

It is very important that at least every other selection tool can be moved according to the tool manufacturing tolerances, so that no more than every other selection tool can be placed against the longitudinal movement in the groove. At least some of the set selection tools are preferably fastened by means of screws which can in principle fasten the scaffolding tools in the radial or axial direction in the tool ring. Claim 5 describes an embodiment in which the resilient O-tools are fastened in the radial direction due to the fact that the wedge surfaces are in the direction according to claim 5. Claim 6 discloses an embodiment in which the resilient tools are mounted axially, which allows the direction defined in claim 6 for the wedge surfaces and provides the advantage that the strong pressure applied radially externally to the holding tool during operation of the machine does not escape. affect their positions.

The present invention also relates to a method for manufacturing a tool ring, characterized in that an annular groove 25 is formed on one side surface, concentric with the axis of the ring, in which the holding tools and the stopping tools are alternately placed, and that said groove is provided with guides for at least some and that at least the stationary latching tools are fixed evenly so that the other tools become uniformly fixed in the groove due to the silent co-operation of the wedge surfaces of the tools. The guides for the selected tools are not normally able to withstand the very high loads acting on the machine, 35 but with these guides it is possible, 4 even by means of the clamping attachment of the tools, to fix the pieces precisely in a position where they support each other everywhere. When a relatively large number of scaffolding tools (but not more than every second as mentioned above) are placed in place, the purpose of the other scaffolding tools is only to compensate for very small inaccuracies so that the wedge angle of the cooperating surfaces can be made very small. This wedge angle cannot usually be so small that the central friction of the tools prevents them from coming loose.

Finally, the invention relates to holding devices which are used in connection with the implementation of the method described above. The different means of the holding tool according to the invention are characterized in that the planes of the side surfaces intersect along a line parallel to the axis of the curved end face and located in the vicinity of said axis and the holding tool. Furthermore, the second holding tool according to the invention is characterized in that the planes of the side surfaces intersect along a line 20 perpendicular to the axis of the curved end surface and located above the y-side.

The invention will now be described in more detail, by way of description of some embodiments thereof, with reference to the accompanying drawings, in which: Figure 1 shows a side view of a nailing machine of a known type using a fitting ring according to the invention;

Fig. 2 shows the nailing machine taken along the line II-II in Fig. 1 in a vertical transverse section;

Figure 3 shows two tool rings according to the invention showing their relative position;

Figure 4 shows a partial view of a first embodiment of a fitting ring according to the invention; Figure 5 shows a partial view of a splice ring according to the invention;

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90742 5

Fig. 6 is a sectional view taken along line VI-VI of Fig. 5 of the locking devices in the work ring for locking the workpieces;

Fig. 7 shows an axial section of the tool ring (B);

Fig. 8 shows the holding tool according to the invention for the tool ring shown in Fig. 4, seen from the yia side and the curved end surface, respectively; and Fig. 9 shows a holding tool according to the invention shown in Fig. 4, seen from the side and the curved end surface, respectively.

Figures 1 and 2 show a machine in connection with which the embodiments of the invention described below are to be used. Such a machine is known from DK patent publication 143 935 and is characterized in that in connection with it the workpieces are pressed into a so-called by internal rolling. Figure 2 showing a vertical cross-section of the nailing machine according to Fig. 1 shows that the tool rings 1 form part of the other components of the nailing machine and that the nailing machine is supported by two opposing plates 46 and 47, the plate 46 fixedly fixed to the the first plate 25 counterparts. Mounted on the inner surface of each plate is a bearing which engages the outer ring 6 and the inner ring 7, the outer rings being attached to the associated support plates, and the working rings attached to the inner rings 6 of the bearings, one of said si-30 rings, namely the left side ring 2. being provided with an internal toothing 48 adapted to be mounted on a gear 51 mounted on the drive shaft of the motor 50.

The nailing machine operates in such a way that the motor drives two 35 opposing ring rings of the toothed sister ring, so that both opposing holding tubes are quietly attached to each other against the full range when the piece is attached to both opposite pieces. Thus, when the core is placed directly opposite the core, its head is deformed according to the mold cavity opposite the center of the core, and after this inner rolling process, the core is detached from the holding bones due to the relative inclined positions of the rings.

Examination of Figures 1 and 2 clearly reveals the accuracy of the new construction of the tyd-fish rings and the tydkalos, since it is clear that the operating principle of the machine requires very high precision in connection with the connection of the holding tools to the 15 tyd-rings. As mentioned above, this is due to the fact that the manufacturing method used, in which the tools are installed by means of a shrinking process, is very demanding in terms of accuracy and very expensive. For example, in the presence of inaccuracies in the differences in rolling level (as determined by the level of the gripping surfaces towards the center of the tire), it is clear that splinters set too low will have an insufficient girl effect and that carbide splints will be damaged if set too high. The latter situation 25 must be checked in conjunction with the high pressure stresses due to the continuous rolling contact of the vals of the rolling mill and the splice rings.

It is thus very important that the rolling gap formed by the holding parts is at a completely uniform radial distance 30 with respect to the rolling roll. This situation is achieved in the context of the present invention by means of a new structure of the connecting ring and a new principle relating to the assembly and attachment of the relevant holding tools.

It can be seen from Figure 2 that the so-called The A-ring 35, which acts as a drive ring, is arranged vertically, the so-called B-

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90742 with 7 rings inclined with respect to the Ά-ring. According to the invention, the n & mM rings have a groove for the alternating setting of the holding and traction devices.

5 This new principle offers two essential benefits to the user. First of all, from a manufacturing point of view, making this career is easy with very small tolerances, which reduces manufacturing costs.

Second, the fully flexible tuft assembly principle 10 is achieved both in the application of the spigot ring to other purposes, such as nails of a different type or conversion of nails to screws, in connection with wear, breakage, etc. of the splints.

Figure 4 shows a partial view of a first embodiment of a fitting ring according to the invention. This tire covers one of the two tires operating in the nailing machine, namely the so-called A ring, which is a vertically placed drive ring (this will be described later). It can be seen from Figure 4 that this ring is provided with a groove 4, 20 with axially arranged side surfaces 19 and 20, the base 21 of the groove being set in a plane parallel to the plane of the ring. This groove is intended to receive the holding lugs 8 and the silent lugs 9, 10 and 10 'in their entire extent, as shown in Fig. 4 myds.

Fig. 8 shows one piece 8 of a ring, this tool having a flat underside 26 and a underside 27 parallel to this underside, and two opposite surfaces 22 and 23 extending transversely to the underside 27 of the underside 26, the surface radially outermost of the ring 30 being concentrically shaped, the second surface 22 being flat and at right angles to the yia and undersides. It can be seen from Fig. Kay that the two opposite side surfaces 24 and 25 of the plug form substantially equal angles with respect to the axial plane 35 formed by the track 15 and 8 on the main side 27 with respect to the common surfaces 22 and 23. However, the surface 22 may be concentrically shaped with myOs.

Figure 4 shows the setting of a few holding tools, and it can be seen that in these applications 5 the tools adhere to the groove bottom 21 of the bottom surface 26, the radially concave end surface 23 of the tool attaching to the radially outer surface 20 of the groove.

The track 15 in the holding tool further extends radially with respect to both opposite surfaces 22 and 23, the mold cavity 34 being formed around the track on the side 22 of the tool. This track 15 is arranged to co-operate with the opposite holding tool on the opposite ring of the needle machine 16 , the rolling roll fitted to the needle machine forms the shape of the head of the workpiece 16 delimited by the opposing mold cavities 34.

In this application, one in five of said stepping devices 9 is fastened radially by means of bolts 13 for the outwardly extending means, whereby the stepping means 8 and the holding means 8 placed on the steps of the stepping means 9 and 10 are pressed together and fastened to the center. wherein the concave surface surface 23 of the holding tools engages closely with the radially outermost side surface of the groove.

In the embodiment, the grooved tools 10 are provided with guide sleeves 34 in the groove, which are fastened axially by means of screws 51, which fasten the tool ring to the bearing ring 6 and which are positioned axially on the circumference of the ring, so that they are positioned in the groove of the ring. 10 'over. A radially mounted latch is set between each of the two latches so set.

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90742 9

This method of attachment must be considered in connection with the opposing wedge surfaces of the tools 8, 9, 10 and 10 ', since the inclination of the wedge surfaces with respect to the axial plane depends on the number of tools attached to the pile. It is thus clear that the differences in the compression attachment of the selection tools 10 can be compensated for by the action of said wedge surfaces through the mutual displacement of the retained holding and suspension tools. In addition, this principle leads to a certain reduction in the requirements for tool manufacturing tolerances. In order to limit the movement of the placed tools adjacent to each other, each vildes of the latching tool is thus secured by the abutment of said radially positioned bolt 13, which with the fifth latched latching tool positioned not by the said guide sleeve 36 and the axially positioned bolt 51, alone to place the selected tool in place with sufficient accuracy.

Figure 5 shows another embodiment of the present invention. In the TS, the tool ring shown in the figure is, as before, the so-called A-ring, the groove in this ring being formed in the same manner as in the embodiment described above. It can be seen from Figure 25 that all the scaffolding tools in this application are fixed in the direction towards the bottom of the groove.

This means that the holding and stopping tools are formed differently from the previously described embodiment, with Fig. 9 showing such a holding tool 11. It can be seen from the figure that the holding tool has a flat underside and an underside parallel to this underside, as shown in Fig. 4. and two opposing surfaces 32 and 33 positioned transverse to the yia side 28 35 and the underside 29, the radially outermost surface 33 10 being concentric with the ring, the other surface 32 being flat and at right angles to the yia side and the bottom side. On the other hand, the different structure of the holding tool causes that in this application the two opposite side surfaces 30 and 31 of the holding tool 5 are arranged to intersect perpendicularly the plane bounded by the track and the tire axis on the end surface of the holding tool.

At the same time, the structure of the holding tools 11 requires that the selected tools 12, which complement the holding tools 10, be shaped differently. As shown in Figure 5, each baffle tool is further secured in this application because the baffle tools are not "locked" against movement out of the groove and thus all the baffle tools must be secured in place. It can be seen from Figure 5 that the inclination of the wedge surface of the tools has been reduced compared to the embodiment according to the figure. In this case, the possible relative movement of the holding tools in the groove as a function of the mutual compression attachment of the sticking tools is reduced, whereby a larger number of sticking tools is set in place. However, the wedge angle must not be too small, as the repositioned or replaced work tools may be "clogged", so that the force exerted by the clamping of the tools on the valence of the cooperating wedge surfaces exceeds the resultant force axially with respect to the groove 25. Thus, all the latching tools 12 are fastened in the axial direction when they are press-fastened against the bottom surface 21 of the groove 4 through the latching member of the bolt 14 passing through them from the rear of the ring. Due to the relatively high tolerance fit of the bolts and threaded holes, the second possible fixed displacement of the tools 30 is placed by means of guide pins 37 placed in the bottom 21 of the groove 4 due to the improved structure of the holding and tools, whereby the guide pins extend. axially with respect to the base of the upper,

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90742 11 fits snugly into the mating holes in the resin fittings 12. However, it is obvious that not all scaffolding devices can be inserted in this way, because the work devices must be able to move at the beginning of the fastening process.

The embodiment shown in Figure 5 additionally offers a particular advantage of use over the application according to Figure 4. It can be seen from the embodiment of Figure 5 that the wedge-shaped side surfaces of the retainers 11 intersect along the lines of the plane bounded by the ring parallel to the track 18 on the surface 28 of the retainer 10. It is thus clear that in this application the radial compressive forces present in the legs of the roll 45 formed by the roll 45 and the holding means 11 do not transfer to the other holding parts in the ring over the entire circumference of the ring 4. This is very important in order to achieve a uniform rolling pattern formed by the holding and stiffening elements along which said rolling roll of the nailing machine runs. This thus results in a uniform design of the held workpieces and reduces the possibility of breakage of the holding fittings and the rolling roll during the operation of the nailing machine 20.

Figure 6 shows a locking device mounted on tool rings (A-rings) for both embodiments (see sections II-II in Figure 5). This locking device retains the workpiece 16 when it is placed on the rail 25 39 until the deformation process of the workpiece is completed. The device operates in such a way that the guide plate 40, which is pivotally attached to the pin 41 and which is bent by the spring 42, is forcibly forced radially into the ring before inserting the piece, so that the locking piece The workpiece is inserted. The baffle 40 is silently released into the jaw setting of this workpiece, thereby moving to its locked position.

35 Thus, the filler piece 16 is retained along the second arc segment and is attached to said holding joint of said A-ring, the guide plate being again forced radially into the ring after the first-mentioned holding means are placed near the nail 5 so that the tracks 15 and 18 placed on the opposite holding means for receiving both of these fittings receive and hold the fitting, after which the roll 5 (shown in Fig. 1) forms the outer roll (shown in Fig. 1). on the head piece, so that the shape of the head piece head is not determined by the mold cavity 34 or 35 of the holding piece 8 or 11.

Figure 3 shows how two cooperating ring rings (A- and B-ring, respectively) are set together. It can be seen that the A-ring is completely vertical and is driven by the motor 50. It can be seen that the locking devices placed radially opposite the holding tools are in this A-ring.

The purpose of the 20 B-ring is to act as a so-called as an auxiliary ring, so that it is driven only by means of co-operation with the A-ring around the filling area, and it can be seen from the figure that the B-ring is inclined with respect to the vertical axis at a predetermined angle away from the A-ring at the predetermined angle increasing mutual distance between the rings in both circumferential directions away from the full range, with the greatest distance occurring at the common apex of the rings diametrically opposite the said full range. This is the relative inclination of the tires to be avoided when inserting the t-pieces into the rings and thus myds to the girls' furniture as well as when removing them from them to the girls.

The relative position of the B-ring causes the formation of the groove 35 therein, as shown in broken lines in Fig. 7, 90742 13a, the base of the groove forming a certain angle with respect to the plane of the ring, which corresponds to the quiet central angle of both rings. As a result, the rail axes of the opposing blanks, with these blanks set to the workbench and the opposite, are parallel silently before the rolling process begins.

Claims (11)

1. Tool ring (1) for attaching workpieces in a machine specially designed for the manufacture of, for example, nails and the like, and comprising a pair of rotary rings, the opposite flat side surfaces of the rings being designed with a plurality of retaining means (8, 11). ) arranged so that an elongated workpiece (16) can be secured substantially radially between a holder member in said corresponding rings, wherein at least one ring has an annular groove (4) arranged to receive holder means, tapered thereof , that spacers (10, 12) are arranged to be fastened in relation to the groove (4) between the holder means (8, 11), and that each of the spacers 15 (10, 12) and its adjacent holder means (8, 11) comprises cooperating wedge surfaces (24, 25, 30, 31) such that one or more holding means (8, 11) can be arranged between a pair of spacers (10, 12) by forcing the holding means to connect to the fixed surface (19) of the groove, which surface (19) is arranged coaxially in ratio ti ll the axis of the ring (1). A tool ring according to claim 1, characterized in that it further comprises spacers (9) adapted to be arranged in relation to the groove (4) without being fastened. 3. A tool ring according to claim 1 or 2, characterized in that all cooperating surfaces of holder means (8, 10) arranged between a spacer pair (9, 10, 10 ', 12) are constituted by wedge surfaces (24, 25, 30, 31), which cooperate as pairs. The tool ring according to any one of claims 1-3, in which the opposing ring plane forms a small angle with one another, characterized in that the groove bottom (21) in one ring (1A) is parallel to the ring plane, and that the groove bottom (IB) in the other the ring forms an angle with a radius in said ring corresponding to said angle between the ring plane. II 90742 5. A tool ring according to any one of claims 1-4, characterized in that a plurality of spacers (10) with equal arc spacers are arranged to be fixed in a direction towards said fixed surface (19), and that said cooperating wedge surfaces (24, 25). ) intersect the respective ring plane in intersection lines, which converge in the direction toward the ring center. 6. A tool ring according to any one of claims 1-4, characterized in that a plurality of spacers (12) of equal arc spacing have been arranged to be fixed in a direction towards the bottom (21) in corresponding grooves, and that said cooperating wedge surfaces (30, 31 ) the corresponding ring plane will intersect in parallel lines. 7. A method for manufacturing a tool ring according to claims 1 to 6, characterized in that an annular groove (4) is formed which is coaxial with the annular shaft and in which holder (8, 11) and spacer (9, 10) are formed. , 12) is positioned in turn, and that said groove is provided with guides (36, 37) for placement of at least some spacers (10, 12), and that at least the 20 positioned spacers are evenly fixed so that the other means (8, 9, 11) are evenly clamped in the groove thanks to the interaction of the wedge surfaces (24, 25, 30, 31). 8. A method according to claim 7, characterized in that the means 25 (10) arranged in place are fixed radially outwards. 9. A method according to claim 7, characterized in that all members attach axially to the groove bottom. Holders (8) for attaching an elongated workpiece (16) to a tool ring according to claim 1, which tool ring has holders and spacers, and for working the workpiece by subjecting it to a force in the longitudinal direction of the workpiece, wherein said means having a flat underside (26) and an upper side (27) 35 parallel to said underside, and formed with a groove (15) to accommodate the elongate workpiece (16) and to secure it against longitudinal forces , wherein said groove extends radially in FGr holding to one pair of opposing spirit surfaces (22, 5), at least of which one year is convexly arcuate and arranged to provide said longitudinal force for a plurality of retainer means to radially inwardly extend the tool ring , wherein said spirit surfaces extend in the transverse direction to the Gversidan and the underside, and wherein said members further comprise one of the opposite side surfaces. r (24, 25) consisting of pairs, characterized in that the plane of the side surfaces (24, 25) intersects along a line parallel to the axis of the arcuate spirit surface (23), and located between said axis and holder (8) . 15 Holders (11) are provided for attaching an elongated workpiece (16) to a tool ring according to claim 1, which tool ring has holders and spacers, and for processing the workpiece by exposing it to a force in the longitudinal direction of the workpiece, wherein said a planar underside (29) and a Gverside (28) parallel to said underside, and formed with a groove (18) for receiving the elongated workpiece (16) and for securing it against longitudinal forces, said grooves radially in relation to a pair of opposing spirit surfaces (32, 33), at least one of which is convexly arcuate and arranged to GverfGra said longitudinal force for a plurality of holders to the radially inwardly cylindrical surface of the tool ring, in the transverse direction to the Gversidan and the underside, and wherein said means further comprises one of the opposite sideways. a pair (30, 31), characterized in that the plane of the side surfaces (30, 31) intersects along a line which is perpendicular to the axis of the arcuate spirit surface 35 (33), and which is above the said Gaver surface (28) .