EP2987566A1 - Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr - Google Patents
Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr Download PDFInfo
- Publication number
- EP2987566A1 EP2987566A1 EP14002887.9A EP14002887A EP2987566A1 EP 2987566 A1 EP2987566 A1 EP 2987566A1 EP 14002887 A EP14002887 A EP 14002887A EP 2987566 A1 EP2987566 A1 EP 2987566A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- embossing
- workpiece
- inner contour
- cut surface
- burr
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 238000000034 method Methods 0.000 title claims description 16
- 238000004049 embossing Methods 0.000 claims abstract description 109
- 238000005520 cutting process Methods 0.000 claims abstract description 34
- 238000009499 grossing Methods 0.000 claims abstract description 3
- 230000008719 thickening Effects 0.000 claims description 7
- 239000011324 bead Substances 0.000 claims description 5
- 241000446313 Lamella Species 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims description 2
- 238000004513 sizing Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000004080 punching Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 230000001680 brushing effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
- B21D28/16—Shoulder or burr prevention, e.g. fine-blanking
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D19/00—Flanging or other edge treatment, e.g. of tubes
- B21D19/005—Edge deburring or smoothing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D28/00—Shaping by press-cutting; Perforating
- B21D28/24—Perforating, i.e. punching holes
- B21D28/26—Perforating, i.e. punching holes in sheets or flat parts
Definitions
- the invention relates to a device for calibrating burr having cut surfaces on punched or finely cut workpieces such as pendulum weights, fins, synchronizer rings for clutches o.
- a device for calibrating burr having cut surfaces on punched or finely cut workpieces such as pendulum weights, fins, synchronizer rings for clutches o.
- the like With an upper part and a lower part, which at least one cutting step for cutting the outer and / or inner contours of the workpiece and form at least one forming stage for embossing the burrs formed during cutting, wherein the forming stage is divided into a fixed die shell with a stamping bell and a movable in the stroke direction Gesenkunterteil with a Retriggerteil with a Retriggerteil with a Retriggerteil with a Retriggerteil with a
- a device for calibrating burr having cut surfaces on punched or finely cut workpieces such as pendulum weights, fins, synchronizer
- the invention further relates to a method for calibrating burr-containing cut surfaces of punched or finely cut workpieces such as Pendulum weights, lamellae, synchronizer rings o. The like., In which the outer and / or inner contour of a workpiece from a strip of tape within a comprehensive apparatus comprising a top and bottom cut in a punching or fine cutting, the cut workpiece by a cross slide (16) spent after opening the device in a forming stage and in this the final shape of the workpiece is generated.
- Punching and fine blanking parts are known to have on their side opposite the punch side of the cutting surface on a ridge whose size of various influencing factors such as the cutting gap between the punch and insert, the strength of the material and the wear of punch and insert depends (see DIN 6930 and VDI Guideline 2906).
- This burr is undesirable because it leads to a limitation of the functionality of high-precision parts.
- the burr must therefore be removed by reworking, which requires additional and complex work steps such as grinding and brushing, regrooving ( CH 665 367 A5 ) or embossing the ridge edges ( DE 41 13 165 A1 . US 3 478 558 A . DE 10 2004 020 483 A1 . DE 10 2006 018 847 B4 ).
- the cut surfaces of punched parts also show a more or less large fracture surface, which significantly reduces the functional surface, ie the smooth cutting zone, so that in addition to the burr removal and the entire cut surface loss of material must be reworked to ensure a form-fitting final contour of the part.
- the reworking is particularly complex, since here the subsequent embossing of the ridge edges with rolling bodies ( DE 41 13 165 . DE 10 2004 020 483 A1 ) unsuitable and only a grinding and brushing of the cutting edges ensures the necessary accuracy.
- the subsequent embossing of the ridge has the disadvantage that forms a Regewulst that affects the accuracy of the cut surface.
- the present invention seeks to provide a device and a method for calibrating ridge having cut surfaces of punched or fineblanking parts such as pendulum weights, slats or synchronizer rings or the like. to create, with which it is possible to achieve a high-precision inner and outer contour of punched or fineblanking parts accurate to shape and dimension with the elimination of rework while saving material and costs.
- the core idea of the solution according to the invention is to bring the entire burr-cut surface of an outer contour or inner contour on a punching or fine blanking part, such as an elliptical hole, within a step, first the burr in such a position that the burr away from the Cutting edge can be bent on the workpiece, then the cut surfaces on the inner contour defined with a Kalibierstempel expand to the final shape and dimension and then completely compensate for the refgewulst resulting from the embossing.
- the forming step comprises a Kalibrierstempel having a calibration area for smoothing the cut surface of the outer or inner contour on the final shape and an embossing shoulder for embossing the ridge of the outer or inner contour, which is formed so that the calibration first the ridge Bends away at the outer or inner contour of the cut surface, then detects the cutting surface for widening, the embossing shoulder of the Kalibrierstempels the burr on the outer or inner contour at the completion of the expansion of the workpiece to form a Crugewulst and equalized during demolding of the Kalibrierstempels the recupergewulst ,
- the Kalibrierstempel has a shape and dimension, the the outer contour or inner contour of the workpiece), for example, circular or non-circular openings such as holes, holes, recesses, are adjusted.
- the calibration of the Kalibrierstempels is formed from a arranged at its head end spherical segmental thickening having a defined excess of the outer or inner contour for radially expanding the cut surface and for equalizing the Regewulst.
- the thickening of the calibration area comes into engagement with the cut surface and displaces the material radially into the workpiece, so that the cut surface of the inner contour obtains a uniformly smooth surface and can be brought into the desired final shape and dimension.
- the calibration area moves past the embossment and equalized.
- the Kalibrierstempel has a shape and dimension, which are adapted to the inner contour of the workpiece, for example, circular or non-circular openings such as holes, holes, recesses. This makes it possible for the device according to the invention for producing punching or fine blanking cutting parts of different configuration such as pendulum weights, slats, synchronizer rings o. The like. Use.
- the embossing shoulder is arranged on the calibration punch at such a height from the top end of the calibration punch that the calibration area of the calibration punch first bends the ridge located on the outside or inside contour away from the cut surface during the vertical movement of the workpiece, then the cut surface of the outside or inner contour for widening detected and equalized on the return stroke of the Kalibrierstempels the Regewulst.
- the Kalibrierstempel is fixed in place on an upper block of the upper part.
- the embossing bell is provided with an embossing shoulder, wherein in the embossing bell a movable in the stroke direction ejector for vertical guidance of the Kalibrierst Zis is provided.
- the embossing bell is annular and completely encloses the outer contour of the workpiece.
- the spring-loaded socket for the embossing team is guided vertically in a stamped positioning plate held by a female socket and has a footprint which forms a seat for the stamping bell in the closed state of the blank and the blank.
- the Matrizenein charged is fixed in place on the lower block, in which the lower auxiliary hydraulics is added, which is operatively connected to the Crugeambos via an additionally supported by spring lower embossing pressure plate by lower pressure pin.
- a further preferred embodiment of the device according to the invention provides that the recorded in an upper block, upper auxiliary hydraulics is operatively connected to the ejector via an upper embossing plate and the Kalibrierstempel is fixed in position fixed to the upper embossing plate, the ejector over standing under additional spring force pressure pin the upper auxiliary hydraulic is operatively connected to release the finished workpiece.
- the widening of the cut surface to the desired final shape and dimension begins at the burr-facing side of the cut surface and ends at the burr-free cut surface without the burred burr changing its orientation during widening.
- Kalibrierstempel can come with different shapes and dimensions used.
- the only prerequisite is that the Kalibrierstkov is adapted to the inner contour of the workpiece, for example, on circular or non-circular openings such as holes, holes, recesses, with a defined excess.
- This makes it possible to use the method according to the invention for punching or fineblanking cutting parts of different configuration, such as flyweights, lamellae, synchronizer rings or the like.
- a further advantageous embodiment of the method according to the invention provides that the ridge of the outer contour is stamped synchronously with the ridge of the inner contour by an embossing shoulder of the embossing bell, wherein the Outer contour of the workpiece is fixed by the stamping shell belonging to the embossing bell and the workpiece is placed in the correct position on the stamping team of the die lower part.
- the Fig. 1a and 1b show a workpiece 1 for a pendulum weight, which was produced by fine blanking. It has on the outer contour 2 cut surfaces 3 with indentation 4 and ridge 5, wherein the ridge 5 is located on the side facing away from the indent 6 side of the workpiece 1.
- the inner contour 7 is formed by the cut surfaces 8, which belong to two ellipsoidally shaped holes 9.
- the cut surfaces 8 also have a corresponding burr 5.1. on.
- the workpiece 1 has, for example, a thickness D of 6 mm and is made of steel.
- the workpiece 1 is to be manufactured in a device comprising an upper part 10 and a lower part 11, which, like Fig. 2 shows- consists of at least one fine cutting stage 12 and at least one forming stage 13.
- the upper part 10 is connected to its upper block 14 (FIG. Fig. 3a ) stationary at a machine table, not shown, and the lower part 11 with its lower block 15 hubbeweglich fixed to a plunger of a press, so that the workpiece 1 from bottom to top - that is in the direction of upper part - from a strip of tape in the fine cutting stage 12 is finely cut, which corresponds to the known state of the art and therefore need not be explained in more detail.
- the cutting ridge 5 of the cut surface 3 of the outer contour 2 protrudes vertically downwards, whereas the cutting ridge 5.1 of the cut surface 8 of the inner contour 7 perpendicular from Workpiece 1 rises (see also Fig. 1b ).
- the finely cut workpiece 1 is detected after ejection from the fine cutting stage 12 by a cross slide 16, transported with this in the forming stage 13 and stored there in position precisely before forming (see also Fig. 3a-f ).
- the Fig. 3a to 3f show the basic structure of the forming stage 13 in different processing states.
- the forming stage 13 has a die top 17 and die bottom 18.
- the die top 17 includes an annular embossing bell 19, an ejector 20 and a Kalibrierst Zi 21.
- the embossing bell 19 is fixedly secured to an upper embossing block 22 a, which in turn is fixed to the upper block 14.
- the ejector 20 is supported on the inner wall of the embossing bell 19 vertically and on the upper embossing pressure plate 22 horizontally, the ejector 20 can perform a vertical relative movement relative to the embossing bell 19.
- the operative connection between ejector 20 and upper embossing pressure plate 22 is produced by additionally under spring force pressure pin 25.
- the ejector 20 of the Kalibrierstempel 21 is used, which in turn is held stationary on the upper embossing block 22a.
- the embossing pressure plate 22 is received in the upper embossing block 22a and communicates with an upper auxiliary hydraulic 23 and a pressure pin 24 in operative connection.
- the ejector 20 is guided vertically on the one hand on the outer wall of the embossing bell 19 and on the other hand on the Kalibrierstempel 21 and supported.
- the die bottom 18 is formed by a Matrizenein charged 26, a socket 27 and a procurgeambos 28.
- the Matrizenein drawn 26 is attached to the lower block 15.
- the embossing team 28 rests on a lower embossing pressure plate 29, which in turn is operatively connected via a lower auxiliary hydraulic system 30.
- the operative connection between the embossing pressure plate 29 and the lower auxiliary hydraulic 30 is ensured by lower pressure pin 32.
- the lower embossing pressure plate 29 is held by a spring 38 with a compression spring 44 under spring force with the lower block 15.
- the socket 27, which contains the embossing team 28, is resiliently held by a compression spring 31 guided by a bolt 43 on an intermediate plate 42, so that the socket 27 can carry out a vertically directed relative movement relative to the embossing team 28 and the embossing positioning plate 29. Furthermore, the socket 27 has a contact surface 46, which forms a seat for the embossing bell 199 in the closed state of the upper die part 17 and the lower die part 18.
- the Fig. 3b shows the state of the embossing stage 13, in which the embossing team 28 has run back.
- the lower auxiliary hydraulics 30 relieves the lower pressure bolt 32, so that the procurgeambos 28 moves back relative to the socket 27 in the direction of TDC so far that the finely cut workpiece 1 rests in the socket 127 in the correct position.
- Fig. 3c the workpiece 1 between ejector 20 and Regeambos 28 is shown in the clamped state, the condition for the beginning of the calibration by the Kalibrierst Zi 21 is.
- the Fig. 3d shows the condition after finishing the burr embossing.
- Fig. 3e has the upper auxiliary hydraulic 24 the Kalibrierst Zi 21 in the direction of bottom dead center with respect to the ridge-embossed workpiece 1 retracted.
- the ridge embossed workpiece 1 is partially dissolved, but not yet ejected.
- the Fig. 3f shows the state of the open forming stage prior to retraction of the cross slide 16 for discharging the workpiece. 1
- the Kalibrierstempel 21 is adapted to the inner contour 7 of the workpiece 1, ie it has an ellipsoidal shape as the hole 9.
- the head 33 of the Kalibrierstempels 21 is formed as a spherical segment-shaped thickening 34, which with respect to the inner contour 7 (holes 9) has a slight defined excess.
- the calibration region 35 first presses the burr 5.1 on the inside contour outwards in the direction of the burr 5 the outer contour 2 and then comes into engagement with the cut surfaces 8 of the inner contour 7, so that the inner contour 7 is widened along its circumference by material displacement in the workpiece interior in a defined degree and the inner contour 7 receives the desired shape and dimension (see also Fig. 9a-9f ).
- the Kalibrierstempel 21 also has an embossing shoulder 36 which is disposed in a vertically spaced from the head end 45 of the Kalibrierstkovs 21 H, which is slightly larger than the thickness D of the workpiece 1.
- the inner contour 7 (hole 9) is widened and smoothed by a defined amount.
- the embossing shoulder 36 of the calibration punch 21 has grasped the burr 5.1 on the inner contour and embossed it into the upper side of the workpiece 1, so that an embossing bead 47 is formed on the cut surface 8.
- the Fig. 5 and 6 show the structure of the Gesenkoberteils 17.
- the embossing bell 19 of the ejector 20 is used, which is guided vertically on the inner wall 37 of the embossing bell 19 and which is acted upon by the pressure pin 25 for carrying out a relative movement relative to the stationary embossing bell 19 (see Fig. 5 ).
- the stamping bell 19 has a shape which is adapted to the outer contour 2 of the workpiece 1, whereby the outer contour 2 can be completely surrounded circumferentially by the inner wall 37 of the stamping bell 19.
- the Kalibrierstkov 21 are attached to the upper embossing pressure plate 22 by bolts 38a and guided vertically in the ejector 20, so that the Kalibrierstempel 21 are fixed to the upper embossing block 22a stationary.
- the Fig. 6 shows a section of the embossing bell 19 along the line BB of Fig. 5 , In the inner wall 37 of the embossing bell 19 is along its circumference an embossing shoulder 39. This embossing shoulder 39 is formed so that it can impart the rising ridge 5 on the outer contour 2, as soon as the workpiece 1 detects the towering ridge 5.1 in its lifting movement.
- the embossing shoulder 39 is located at a height h corresponding to the height H of the calibrating punches 21. This ensures that the embossment on the inner contour 7 and outer contour 8 takes place synchronously on the workpiece 1.
- the die lower part 18 is in the Fig. 7 shown in a revolutionary illustration. It is composed of the stamping team 28, a socket 27 for the stamping team 28, a stamping positioning plate 40, a tuning plate 41, the lower stamping board 29 and an intermediate plate 42.
- the Fig. 8 shows a section of the Gesenkunterteils 18. It can be clearly seen that the socket 27 on the intermediate plate 42 with the compression spring 31 in conjunction with the bolt 43 and the intermediate plate 42 with a compression spring 44 and a pin 43 resiliently on the lower block 15 of the forming stage 13 is held (see also Fig. 3a ).
- the course of the method according to the invention is based on the Fig. 9a to 9e shown.
- the Fig. 9a starts from the opened state of the device.
- the ejector 20 and the recupergeambos 28 are not shown for reasons of simplification.
- the Kalibrierstempel 21 with its calibration area 35 and its embossing shoulder 36 and the embossing bell 19 with its embossing shoulder 39 are in a disengaged position above the workpiece.
- the Fig. 9b shows the state in which the workpiece 1 has reached the cutting edge 5.1 on the cutting surface 8 of the inner contour 7 during the stroke.
- the towering cutting ridge 5.1 is bent by the spherical segment-shaped thickening 34 with the ridge embossing radius GR outward in the direction of the outer contour 2, so that the subsequent embossing of the burr 5.1 extends away from the inner contour 7 to the outside.
- After further stroke of the workpiece 1 detects the spherical segment-shaped thickening 34 of the calibration 35th This results in a defined widening of the inner contour 7 on the workpiece 1.
- the defined widening is determined by the excess of the calibration region 35 relative to the inner contour 8 or hole 9 (see Fig. 9c .).
- the widening of the inner contour is terminated as soon as the cut surface 8 is no longer in engagement with the calibration region 35, that is, the calibration region 35 of the calibration punch 21 has moved through the inner contour 7.
- the embossing shoulder 36 of the calibration punch 21 has embossed the chamfered cutting edge 5.1 away from the inner contour 7 on the workpiece 1.
- the embossing shoulder 39 of the embossing bell 19 engages the cutting edge 5 of the cutting surface 3 of the outer contour 2, so that the cutting burr 5 is embossed in the direction of the inner contour 7 on the workpiece 1.
- the Fig. 9e shows the state in which the Kalibrierstempel 21 performs a return stroke against the stroke direction HR to remove the Kalibrierstkov 21 from the workpiece to 1.
- the calibration area 35 detects the embossing bead 47 during the return stroke and levels it to the final dimension.
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- Engineering & Computer Science (AREA)
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- Punching Or Piercing (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Die Erfindung betrifft eine Vorrichtung zum Kalibrieren von Grat (5,5.1) aufweisenden Schnittflächen (3,8) an gestanzten oder feingeschnittenen Werkstücken (1) mit einem Oberteil (10) und einem Unterteil (11), welche mindestens eine Schneidstufe (12) zum Schneiden der Außen- und/oder Innenkonturen (2,7) des Werkstücks (1) und mindestens eine Umformstufe (13) zum Verprägen der beim Schneiden entstandenen Grate (5, 5.1) bilden, wobei die Umformstufe (13) in ein feststehendes Gesenkoberteil (17) mit einer Prägeglocke (19) sowie ein in Hubrichtung (HR) bewegliches Gesenkunterteil (18) mit einem Prägeambos (28) aufgeteilt ist. Die Umformstufe (3) umfasst einen Kalibrierstempel (21) der einen Kalibrierbereich (35) zum Glätten der Schnittfläche (3, 8) der Außen- oder Innenkontur (2,7) auf die Endform und eine Prägeschulter (36) zum Verprägen des Grates (5.1) der Außen- oder Innenkontur (2,7) aufweist, die so ausgebildet sind, dass der Kalibrierbereich (35) zunächst den Grat (5.1) an der Außen- oder Innenkontur (2,7) von der Schnittfläche (3,8) wegbiegt, dann die Schnittfläche (3,8) zum Aufweiten erfasst, wobei die Prägeschulter (36) des Kalibrierstempels (21) den Grat (5.1) an der Außen- oder Innenkontur (2,7) bei Beendigung des Aufweitens am Werkstück (1) verprägt und beim Entformen des Kalibrierstempels (21) vom Werkstück (1) den beim Verprägen entstehenden Prägewulst (47) egalisiert.The invention relates to a device for calibrating ridge (5, 5, 1) having cut surfaces (3, 8) on punched or finely cut workpieces (1) with an upper part (10) and a lower part (11), which has at least one cutting step (12) for Cutting the outer and / or inner contours (2,7) of the workpiece (1) and at least one forming stage (13) for embossing of the burrs (5, 5.1) formed during cutting, wherein the forming stage (13) in a fixed Gesenkoberteil ( 17) with a stamping bell (19) and in the stroke direction (HR) movable die lower part (18) with a Prägeambos (28) is divided. The forming step (3) comprises a calibration punch (21) of a calibration region (35) for smoothing the cut surface (3, 8) of the outer or inner contour (2, 7) onto the final shape and an embossing shoulder (36) for embossing the burr (FIG. 5.1) of the outer or inner contour (2,7), which are formed so that the calibration region (35) first the ridge (5.1) on the outer or inner contour (2,7) of the cut surface (3,8) bent, then the cutting surface (3,8) detected to widening, wherein the embossing shoulder (36) of the Kalibrierstempels (21) the burr (5.1) on the outer or inner contour (2,7) upon completion of the widening of the workpiece (1) stamped and equalized during removal of the Kalibrierstempels (21) from the workpiece (1) resulting from stamping Präugrulst (47).
Description
Die Erfindung betrifft eine Vorrichtung zum Kalibrieren von Grat aufweisenden Schnittflächen an gestanzten oder feingeschnittenen Werkstücken wie Pendelgewichte, Lamellen, Synchronringe für Kupplungen o. dgl., mit einem Oberteil und einem Unterteil, welche mindestens eine Schneidstufe zum Schneiden der Außenund/oder Innenkonturen des Werkstücks und mindestens eine Umformstufe zum Verprägen der beim Schneiden entstandenen Grate bilden, wobei die Umformstufe in ein feststehendes Gesenkoberteil mit einer Prägeglocke sowie ein in Hubrichtung bewegliches Gesenkunterteil mit einem Prägeambos aufgeteilt istThe invention relates to a device for calibrating burr having cut surfaces on punched or finely cut workpieces such as pendulum weights, fins, synchronizer rings for clutches o. The like., With an upper part and a lower part, which at least one cutting step for cutting the outer and / or inner contours of the workpiece and form at least one forming stage for embossing the burrs formed during cutting, wherein the forming stage is divided into a fixed die shell with a stamping bell and a movable in the stroke direction Gesenkunterteil with a Prägeambos
Die Erfindung betrifft weiterhin ein Verfahren zum Kalibrieren von Grat aufweisenden Schnittflächen von gestanzten oder feingeschnittenen Werkstücken wie Pendelgewichte, Lamellen, Synchronringe o. dgl., bei dem die Außen- und/oder Innenkontur eines Werkstücks aus einem Bandstreifen innerhalb einer ein Ober- und Unterteil umfassende Vorrichtung in einer Stanz- oder Feinschneidstufe geschnitten, das geschnittene Werkstück durch einen Querschieber (16) nach Öffnen der Vorrichtung in eine Umformstufe verbracht und in dieser die Endform des Werkstücks erzeugt wird.The invention further relates to a method for calibrating burr-containing cut surfaces of punched or finely cut workpieces such as Pendulum weights, lamellae, synchronizer rings o. The like., In which the outer and / or inner contour of a workpiece from a strip of tape within a comprehensive apparatus comprising a top and bottom cut in a punching or fine cutting, the cut workpiece by a cross slide (16) spent after opening the device in a forming stage and in this the final shape of the workpiece is generated.
Stanz- und Feinschneidteile weisen bekanntlich an ihrer der Stempelseite entgegengesetzten Seite der Schnittfläche einen Grat auf, dessen Größe von verschiedenen Einflussfaktoren wie des Schneidspaltes zwischen Stempel und Schneidplatte, der Festigkeit des Werkstoffs und dem Verschleiß von Stempel und Schneidplatte abhängig ist (siehe DIN 6930 und VDI-Richtlinie 2906). Dieser Grat ist unerwünscht, weil dieser zu einer Einschränkung der Funktionsfähigkeit bei hochpräzisen Teilen führt. Der Grat muss daher durch Nacharbeit entfernt werden, was zusätzliche und aufwändige Arbeitsschritte wie beispielsweise ein Schleifen und Bürsten, ein Nachschneiden (
Die Schnittflächen von Stanzteilen zeigen außerdem eine mehr oder weniger große Bruchfläche, die die Funktionsfläche, d.h. die Glattschnittzone, deutlich verringert, so dass neben der Gratentfernung auch die gesamte Schnittfläche unter Verlust von Material nachgearbeitet werden muss, um eine formgetreue Endkontur des Teils zu gewährleisten.
Insbesondere bei Teilen mit nicht kreisförmigen Innenkonturen wie nierenförmige oder elliptische Öffnungen, Durchbrüche oder Löcher im Werkstück, ist die Nacharbeit besonders aufwändig, da hier das nachträgliche Verprägen der Gratkanten mit Rollkörpern (
The cut surfaces of punched parts also show a more or less large fracture surface, which significantly reduces the functional surface, ie the smooth cutting zone, so that in addition to the burr removal and the entire cut surface loss of material must be reworked to ensure a form-fitting final contour of the part.
Particularly in the case of parts with non-circular inner contours such as kidney-shaped or elliptical openings, openings or holes in the workpiece, the reworking is particularly complex, since here the subsequent embossing of the ridge edges with rolling bodies (
Bei diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Vorrichtung und ein Verfahren zum Kalibrieren von Grat aufweisenden Schnittflächen an Stanz- oder Feinschneidteilen wie Pendelgewichte, Lamellen oder Synchronringe o.dgl. zu schaffen, mit denen es möglich wird, eine hochpräzise Innen- und Außenkontur an Stanz- oder Feinschneidteilen form- und abmessungsgenau unter Wegfall von Nacharbeit bei gleichzeitiger Einsparung von Material und Kosten zu erreichen.In this prior art, the present invention seeks to provide a device and a method for calibrating ridge having cut surfaces of punched or fineblanking parts such as pendulum weights, slats or synchronizer rings or the like. to create, with which it is possible to achieve a high-precision inner and outer contour of punched or fineblanking parts accurate to shape and dimension with the elimination of rework while saving material and costs.
Diese Aufgabe wird durch eine Vorrichtung der eingangs genannten Gattung mit den Merkmalen des Anspruchs 1 und durch ein Verfahren mit Merkmalen des Anspruchs 15 gelöst.This object is achieved by a device of the type mentioned with the features of
Vorteilhafte Ausgestaltungen der Vorrichtung und des Verfahrens sind den Unteransprüchen entnehmbar.Advantageous embodiments of the device and the method are the dependent claims.
Der Kerngedanke der erfindungsgemäßen Lösung besteht darin, innerhalb einer Stufe die gesamte mit Grat versehene Schnittfläche einer Außenkontur oder Innenkontur an einem Stanz- oder Feinschneidteil, wie beispielsweise eines elliptischen Loches, zuerst den Grat in solch eine Lage zu bringen, dass der Grat weg von der Schnittkante am Werkstück gebogen werden kann, dann die Schnittflächen an der Innenkontur mit einem Kalibierstempel definiert auf die Endform und -abmessung aufzuweiten und anschließend die beim Verprägen entstehende Prägewulst komplett zu egalisieren.The core idea of the solution according to the invention is to bring the entire burr-cut surface of an outer contour or inner contour on a punching or fine blanking part, such as an elliptical hole, within a step, first the burr in such a position that the burr away from the Cutting edge can be bent on the workpiece, then the cut surfaces on the inner contour defined with a Kalibierstempel expand to the final shape and dimension and then completely compensate for the Prägewulst resulting from the embossing.
Dies wird dadurch erreicht, dass die Umformstufe einen Kalibrierstempel umfasst, der einen Kalibrierbereich zum Glätten der Schnittfläche der Außenoder Innenkontur auf die Endform und eine Prägeschulter zum Verprägen des Grates der Außen- oder Innenkontur aufweist, die so ausgebildet ist, dass der Kalibrierbereich zunächst den Grat an der Außen- oder Innenkontur von der Schnittfläche wegbiegt, dann die Schnittfläche zum Aufweiten erfasst, wobei die Prägeschulter des Kalibrierstempels den Grat an der Außen- oder Innenkontur bei Beendigung des Aufweitens am Werkstück unter Ausbildung einer Prägewulst verprägt und beim Entformen des Kalibrierstempels den Prägewulst egalisiert.This is achieved in that the forming step comprises a Kalibrierstempel having a calibration area for smoothing the cut surface of the outer or inner contour on the final shape and an embossing shoulder for embossing the ridge of the outer or inner contour, which is formed so that the calibration first the ridge Bends away at the outer or inner contour of the cut surface, then detects the cutting surface for widening, the embossing shoulder of the Kalibrierstempels the burr on the outer or inner contour at the completion of the expansion of the workpiece to form a Prägewulst and equalized during demolding of the Kalibrierstempels the Prägewulst ,
Von besonderem Vorteil ist, dass der Kalibrierstempel eine Form und Abmessung aufweist, die an die Außenkontur oder Innenkontur des Werkstücks), beispielsweise kreis- oder nichtkreisförmige Öffnungen wie Löcher, Bohrungen, Ausnehmungen, angepasst sind. Dies ermöglicht es, die erfindungsgemäße Vorrichtung zum Herstellen von Stanz- oder Feinschneidschneidteilen unterschiedlicher Konfiguration wie Pendelgewichte, Lamellen, Synchronringe o. dgl. einzusetzen.Of particular advantage is that the Kalibrierstempel has a shape and dimension, the the outer contour or inner contour of the workpiece), for example, circular or non-circular openings such as holes, holes, recesses, are adjusted. This makes it possible to use the device according to the invention for producing punched or fineblanking cutting parts of different configuration, such as pendulum weights, lamellae, synchronizer rings or the like.
Nach einer bevorzugten Ausführungsvariante der erfindungsgemäßen Vorrichtung ist der Kalibrierbereich des Kalibrierstempels aus einer an seinem Kopfende angeordneten kugelsegmentförmigen Verdickung gebildet, die ein definiertes Übermaß gegenüber der Außen- oder Innenkontur zum radialen Aufweiten der Schnittfläche und zum Egalisieren der Prägewulst aufweist. Bei der Hubbewegung des Werkstücks gelangt die Verdickung des Kalibrierbereichs in Eingriff mit der Schnittfläche und verdrängt das Material radial in das Werkstück, so dass die Schnittfläche der Innenkontur eine gleichmäßig glatte Oberfläche erhält und in die gewünschte Endform und -abmessung gebracht werden kann. Beim Entformen des Kalibrierstempels, d.h. der Rückbewegung des Kalibrierstempels entgegen der Hubrichtung, fährt der Kalibrierbereich am Prägewulst vorbei und egalisiert diesen.According to a preferred embodiment of the device according to the invention the calibration of the Kalibrierstempels is formed from a arranged at its head end spherical segmental thickening having a defined excess of the outer or inner contour for radially expanding the cut surface and for equalizing the Prägewulst. During the stroke movement of the workpiece, the thickening of the calibration area comes into engagement with the cut surface and displaces the material radially into the workpiece, so that the cut surface of the inner contour obtains a uniformly smooth surface and can be brought into the desired final shape and dimension. When removing the calibration punch, i. the return movement of the Kalibrierstempels against the stroke direction, the calibration area moves past the embossment and equalized.
In einer weiteren Ausgestaltung der erfindungsgemäßen Vorrichtung weist der Kalibrierstempel eine Form und Abmessung auf, die an die Innenkontur des Werkstücks, beispielsweise kreis- oder nichtkreisförmige Öffnungen wie Löcher, Bohrungen, Ausnehmungen, angepasst sind. Dies ermöglicht es, die erfindungsgemäße Vorrichtung zum Herstellen von Stanz- oder Feinschneidschneidteilen unterschiedlicher Konfiguration wie Pendelgewichte, Lamellen, Synchronringe o. dgl. einzusetzen.In a further embodiment of the device according to the invention the Kalibrierstempel has a shape and dimension, which are adapted to the inner contour of the workpiece, for example, circular or non-circular openings such as holes, holes, recesses. This makes it possible for the device according to the invention for producing punching or fine blanking cutting parts of different configuration such as pendulum weights, slats, synchronizer rings o. The like. Use.
In Weiterbildung der Erfindung ist die Prägeschulter am Kalibrierstempel in solch einer Höhe vom Kopfende des Kalibrierstempels angeordnet ist, dass der Kalibrierbereich des Kalibrierstempels bei der Vertikalbewegung des Werkstücks zuerst den an der Außenoder Innenkontur befindlichen Grat von der Schnittfläche weg anbiegt, dann die Schnittfläche der Außen- oder Innenkontur zum Aufweiten erfasst und beim Rückhub des Kalibrierstempels die Prägewulst egalisiert.In a further development of the invention, the embossing shoulder is arranged on the calibration punch at such a height from the top end of the calibration punch that the calibration area of the calibration punch first bends the ridge located on the outside or inside contour away from the cut surface during the vertical movement of the workpiece, then the cut surface of the outside or inner contour for widening detected and equalized on the return stroke of the Kalibrierstempels the Prägewulst.
In weiterer Ausgestaltung der erfindungsgemäßen Vorrichtung ist der Kalibrierstempel ortsfest an einem oberen Block des Oberteils festgelegt.In a further embodiment of the device according to the invention the Kalibrierstempel is fixed in place on an upper block of the upper part.
In weiterer zweckmäßiger Ausgestaltung der erfindungsgemäßen Vorrichtung ist die Prägeglocke mit einer Prägeschulter versehen ist, wobei in der Prägeglocke ein in Hubrichtung bewegbar ausgebildeter Auswerfer zur vertikalen Führung des Kalibrierstempels vorgesehen ist.
Zum Fixieren der Außenkontur des Werkstücks ist die Prägeglocke ringförmig ausgebildet und umschließt die Außenkontur des Werkstücks vollständig.
Die unter Federkraft stehende Fassung für den Prägeambos ist in einer von einer Matrizeneinfassung gehaltenen Prägepositionierplatte vertikal geführt und weist eine Aufstandsfläche auf, die einen Sitz für die Prägeglocke im geschlossenen Zustand von Gesenkoberteil und Gesenkunterteil bildet.In a further advantageous embodiment of the device according to the invention the embossing bell is provided with an embossing shoulder, wherein in the embossing bell a movable in the stroke direction ejector for vertical guidance of the Kalibrierstempels is provided.
For fixing the outer contour of the workpiece, the embossing bell is annular and completely encloses the outer contour of the workpiece.
The spring-loaded socket for the embossing team is guided vertically in a stamped positioning plate held by a female socket and has a footprint which forms a seat for the stamping bell in the closed state of the blank and the blank.
Die Matrizeneinfassung ist ortsfest am unteren Block fixiert, in dem die untere Zusatzhydraulik aufgenommen ist, die mit dem Prägeambos über eine zusätzlich mit Federkraft abgestützte untere Prägedruckplatte durch untere Druckbolzen wirkverbunden ist.The Matrizeneinfassung is fixed in place on the lower block, in which the lower auxiliary hydraulics is added, which is operatively connected to the Prägeambos via an additionally supported by spring lower embossing pressure plate by lower pressure pin.
Eine weitere bevorzugte Ausbildung der erfindungsgemäßen Vorrichtung sieht vor, dass die in einem oberen Block aufgenommene, obere Zusatzhydraulik mit dem Auswerfer über eine obere Prägedruckplatte wirkverbunden ist und der Kalibrierstempel an der oberen Prägedruckplatte lagefixiert befestigt ist, wobei der Auswerfer über unter zusätzlicher Federkraft stehende Druckbolzen mit der oberen Zusatzhydraulik zum Lösen des fertigen Werkstücks wirkverbunden ist.A further preferred embodiment of the device according to the invention provides that the recorded in an upper block, upper auxiliary hydraulics is operatively connected to the ejector via an upper embossing plate and the Kalibrierstempel is fixed in position fixed to the upper embossing plate, the ejector over standing under additional spring force pressure pin the upper auxiliary hydraulic is operatively connected to release the finished workpiece.
Die Aufgabe wird weiterhin durch ein Verfahren gelöst, bei dem in einem einzigen Arbeitsgang in der Umformstufe folgende Schritte durchgeführt werden:
- a) Anbiegen des an der Schnittfläche der Außen- oder Innenkontur befindlichen Grates von der Schnittfläche weg mit einem einen Kalibrierbereich aufweisenden Kalibrierstempel beim Ausführen einer Vertikalbewegung des Werkstücks in Hubrichtung,
- b) Aufweiten der Schnittfläche der Außen- oder Innenkontur des Werkstücks durch den Kalibrierbereich des Kalibrierstempels auf die gewünschte Endform und -abmessung bis die Prägeschulter am Kalibrierstempel den Grat an der Schnittfläche der Außen- oder Innenkontur erfasst,
- c) Erzeugen einer Prägewulst in der Schnittfläche durch Verprägen des Grates der Außen- oder Innenkontur am Werkstück mit der Prägeschulter des Kalibrierstempels,
- d) Egalisieren der Prägewulst mit dem Kalibrierbereich des Kalibrierstempels bei seiner Entformung vom Werkstück durch eine Vertikalbewegung des Kalibrierstempels entgegen der Hubrichtung des Werkstücks.
- a) bending the ridge located on the cut surface of the outer or inner contour away from the cut surface with a calibration punch having a calibration region when a vertical movement of the workpiece in the stroke direction is carried out,
- b) widening of the cut surface of the outer or inner contour of the workpiece by the calibration range of the calibrating punch to the desired final shape and dimension until the embossing shoulder on the calibrating punch detects the burr at the cut surface of the outer or inner contour,
- c) generating a Prägewulst in the cut surface by embossing the ridge of the outer or inner contour on the workpiece with the embossing shoulder of the Kalibrierstempels,
- d) equalization of the embossment bead with the calibration of the Kalibrierstempels during its removal from the workpiece by a vertical movement of the Kalibrierstempels against the stroke direction of the workpiece.
Von besonderem Vorteil ist, dass das Aufweiten der Schnittfläche auf die gewünschte Endform und -abmessung an der vom Grat zugewandten Seite der Schnittfläche beginnt und an der gratlosen Schnittfläche endet, ohne dass der angebogene Grat während des Aufweitens seine Ausrichtung ändert.It is of particular advantage that the widening of the cut surface to the desired final shape and dimension begins at the burr-facing side of the cut surface and ends at the burr-free cut surface without the burred burr changing its orientation during widening.
In weiterer Ausgestaltung des erfindungsgemäßen Verfahrens können Kalibrierstempel mit unterschiedlichen Formen und Abmessungen zum Einsatz gelangen. Voraussetzung ist lediglich, dass der Kalibrierstempel an die Innenkontur des Werkstücks, beispielsweise an kreis- oder nichtkreisförmige Öffnungen wie Löcher, Bohrungen, Ausnehmungen, mit einem definierten Übermaß angepasst ist. Dies ermöglicht es, das erfindungsgemäße Verfahren für Stanz- oder Feinschneidschneidteile unterschiedlicher Konfiguration wie Fliehgewichte, Lamellen, Synchronringe o. dgl. einzusetzen.In a further embodiment of the method according to the invention Kalibrierstempel can come with different shapes and dimensions used. The only prerequisite is that the Kalibrierstempel is adapted to the inner contour of the workpiece, for example, on circular or non-circular openings such as holes, holes, recesses, with a defined excess. This makes it possible to use the method according to the invention for punching or fineblanking cutting parts of different configuration, such as flyweights, lamellae, synchronizer rings or the like.
Eine weitere vorteilhafte Ausführungsform des erfindungsgemäßen Verfahren sieht vor, dass der Grat der Außenkontur synchron mit dem Grat der Innenkontur durch eine Prägeschulter der Prägeglocke verprägt wird, wobei die Außenkontur des Werkstücks durch die zum Gesenkoberteil gehörende Prägeglocke fixiert und das Werkstück auf dem Prägeambos des Gesenkunterteils lagegerecht abgelegt wird.A further advantageous embodiment of the method according to the invention provides that the ridge of the outer contour is stamped synchronously with the ridge of the inner contour by an embossing shoulder of the embossing bell, wherein the Outer contour of the workpiece is fixed by the stamping shell belonging to the embossing bell and the workpiece is placed in the correct position on the stamping team of the die lower part.
Weitere Vorteile, Merkmale und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung unter Bezugnahme auf die beigefügten Zeichnungen.Further advantages, features and details of the invention will become apparent from the following description with reference to the accompanying drawings.
Die Erfindung soll nachstehend an am Beispiel der Herstellung eines Pendelgewichtes mit elliptischen Löchern als Innenkontur näher erläutert werden. Es versteht sich, dass durch die Erfindung ebenso Stanz- oder Feinschneidteile mit anderen Formen der Außen- und Innenkontur erfasst sind, beispielsweise Lamellen.
Es zeigen
-
Fig. 1a und1b eine perspektivische Ansicht und einen Schnitt entlang der Linie A-A derFig. 1a eines feingeschnittenen Werkstücks für ein handelsübliches Fliehgewicht, -
Fig. 2 eine beispielhafte Anordnung von Feinschneidstufe und Umformstufe in einer erfindungsgemäßen Vorrichtung in perspektivischer Draufsicht, -
Fig. 3a eine schematische Schnittdarstellung der Umformstufe im geöffneten Zustand, -
Fig. 3b eine schematische Schnittdarstellung der Umformstufe mit zurückgelaufenem Prägeambos, -
Fig. 3c eine schematische Schnittdarstellung der Umformstufe im Klemmzustand, -
Fig. 3d eine schematische Schnittdarstellung der Umformstufe im Zustand nach dem Gratverprägen, -
Fig. 3e eine schematische Schnittdarstellung der Umformstufe mit teilweise vom Kalibrierstempel gelösten Werkstück, -
Fig. 3f eine schematische Schnittdarstellung der Umformstufe beim Öffnen. -
Fig. 4 eine vergrößerte Darstellung des Kalibrierstempels mit Prägeschulter und am Kopf angeordneten Kalibrierbereich, -
Fig. 5 eine perspektivische Ansicht des Gesenkoberteils der erfindungsgemäßen Vorrichtung in Revolutionsdarstellung, -
Fig. 6 eine vergrößerte Darstellung der Prägeglocke mit Prägeschulter, -
Fig. 7 eine perspektivische Ansicht des Gesenkunterteils, -
Fig. 8 eine perspektivische Ansicht des Prägeambos mit Fassung ohne -
Fig. 9a bis 9e den Ablauf des erfindungsgemäßen Verfahrens mit synchroner Verprägung des Grates an der Außen- und Innenkontur in schematischer Darstellung.
Show it
-
Fig. 1a and1b a perspective view and a section along the line AA ofFig. 1a a finely cut workpiece for a commercial flyweight, -
Fig. 2 an exemplary arrangement of fineblanking stage and forming stage in a device according to the invention in a perspective plan view, -
Fig. 3a a schematic sectional view of the forming stage in the open state, -
Fig. 3b a schematic sectional view of Forming stage with recessed embossing team, -
Fig. 3c a schematic sectional view of the forming stage in the clamping state, -
Fig. 3d a schematic sectional view of the forming stage in the state after the burr embossing, -
Fig. 3e FIG. 2 is a schematic sectional view of the forming stage with a workpiece partially detached from the calibrating punch; FIG. -
Fig. 3f a schematic sectional view of the forming stage when opening. -
Fig. 4 an enlarged view of the calibration stamp with embossing shoulder and arranged on the head calibration area, -
Fig. 5 a perspective view of the upper die part of the device according to the invention in Revolution illustration, -
Fig. 6 an enlarged view of the embossing bell with embossing shoulder, -
Fig. 7 a perspective view of the Gesenkunterteils, -
Fig. 8 a perspective view of the stamping team with socket without -
Fig. 9a to 9e the sequence of the method according to the invention with synchronous embossment of the ridge on the outer and inner contour in a schematic representation.
Die
Das Werkstück 1 soll in einer Vorrichtung hergestellt werden, die ein Oberteil 10 und ein Unterteil 11 umfasst, die -wie
Das Oberteil 10 ist mit seinem oberen Block 14 (
Der Schnittgrat 5 der Schnittfläche 3 der Außenkontur 2 ragt senkrecht nach unten ab, wohingegen der Schnittgrat 5.1 der Schnittfläche 8 der Innenkontur 7 senkrecht vom Werkstück 1 aufragt (siehe auch
Das feingeschnittene Werkstück 1 wird nach dem Ausstoßen aus der Feinschneidstufe 12 durch einen Querschieber 16 erfasst, mit diesem in die Umformstufe 13 transportiert und dort vor dem Umformen lagegenau abgelegt (siehe auch
The
The cutting
The finely cut
Die
Zum Gesenkoberteil 17 gehören eine ringförmige Prägeglocke 19, ein Auswerfer 20 und ein Kalibrierstempel 21. Die Prägeglocke 19 ist an einem oberen Prägeblock 22a ortsfest befestigt, welche ihrerseits am oberen Block 14 festliegt. Der Auswerfer 20 stützt sich an der Innenwand der Prägeglocke 19 vertikal und an der oberen Prägedruckplatte 22 horizontal ab, wobei der Auswerfer 20 eine vertikale Relativbewegung gegenüber der Prägeglocke 19 ausführen kann.
Die Wirkverbindung zwischen Auswerfer 20 und oberer Prägedruckplatte 22 wird durch zusätzlich unter Federkraft stehende Druckbolzen 25 hergestellt.
Im Auswerfer 20 ist der Kalibrierstempel 21 eingesetzt, der seinerseits ortsfest an dem oberen Prägeblock 22a gehalten ist.
Die Prägedruckplatte 22 ist im oberen Prägeblock 22a aufgenommen und steht mit einer oberen Zusatzhydraulik 23 und einem Druckbolzen 24 in Wirkverbindung. Der Auswerfer 20 ist einerseits an der Außenwand der Prägeglocke 19 und andererseits am Kalibrierstempel 21 vertikal geführt und abstützt.The
The
The operative connection between
In the
The embossing
Das Gesenkunterteil 18 ist durch eine Matrizeneinfassung 26, eine Fassung 27 und einen Prägeambos 28 gebildet. Die Matrizeneinfassung 26 ist am unteren Block 15 befestigt. Der Prägeambos 28 liegt auf einer unteren Prägedruckplatte 29 auf, die ihrerseits über eine untere Zusatzhydraulik 30 in Wirkverbindung steht. Die Wirkverbindung zwischen der Prägedruckplatte 29 und der unteren Zusatzhydraulik 30 wird durch untere Druckbolzen 32 sichergestellt. Zusätzlich ist die untere Prägedruckplatte 29 über einen mit einer Druckfeder 44 unter Federkraft gesetzten Bolzen 38 mit dem unteren Block 15 gehalten.
Die Fassung 27, die den Prägeambos 28 enthält, ist mit einer von einem Bolzen 43 geführten Druckfeder 31 an einer Zwischenplatte 42 federnd gehalten, so dass die Fassung 27 gegenüber dem Prägeambos 28 und der Prägepositionierplatte 29 eine vertikal gerichtete Relativbewegung ausführen kann. Des Weiteren hat die Fassung 27 eine Aufstandsfläche 46, die einen Sitz für die Prägeglocke 199 im geschlossenen Zustand von Gesenkoberteil 17 und Gesenkunterteil 18 bildet.
Die
Nach
Die
The
The
To
The
In
Die
The
Wie in
Der Kalibrierstempel 21 hat außerdem eine Prägeschulter 36, die in einer vom Kopfende 45 des Kalibrierstempels 21 vertikal beabstandeten Höhe H angeordnet ist, welche etwas größer ist als die Dicke D des Werkstücks 1. Hat sich die Schnittfläche 8 beim Hub des Werkstücks 1 am Kalibrierbereich 35 vorbeibewegt, ist die Innenkontur 7 (Loch 9) um ein definiertes Maß aufgeweitet und geglättet. Die Prägeschulter 36 des Kalibrierstempels 21 hat den Grat 5.1 an der Innenkontur erfasst und in die Oberseite des Werkstücks 1 verprägt, so dass eine Prägewulst 47 an der Schnittfläche 8 entsteht.As in
The
Die
Die Prägeglocke 19 hat eine Form, die an die Außenkontur 2 des Werkstücks 1 angepasst ist, wodurch die Außenkontur 2 umfangsmäßig durch die Innenwand 37 der Prägeglocke 19 vollständig eingefasst werden kann.
Die Kalibrierstempel 21 sind an der oberen Prägedruckplatte 22 durch Schraubenbolzen 38a befestigt und im Auswerfer 20 vertikal geführt, so dass die Kalibrierstempel 21 an dem oberen Prägeblock 22a ortsfest fixiert sind.
Die
The stamping
The
The
Das Gesenkunterteil 18 ist in den
Die
The
Der Ablauf des erfindungsgemäßen Verfahrens wird anhand der
Die
Die
Nach weiterem Hub des Werkstücks 1 erfasst die kugelsegmentförmige Verdickung 34 des Kalibrierbereiches 35 die Schnittfläche 8 der Innenkontur 7 und verdrängt Material in das Innere des Werkstückes 1. Es entsteht eine definierte Aufweitung der Innenkontur 7 am Werkstück 1. Die definierte Aufweitung bestimmt sich durch das Übermaß des Kalibrierbereichs 35 gegenüber der Innenkontur 8 bzw. Loch 9 (siehe
In der
Soll nur eine Außenkontur 2 wie beispielsweise eine Lamelle herstellt werden, entfällt natürlich das synchrone Verprägen, ohne das erfindungsgemäße Verfahren zu verlassen.
Die
The
The
After further stroke of the
In the
If only one
The
- Werkstückworkpiece
- 11
- Außenkonturouter contour
- 22
- Schnittfläche von 2Cut surface of 2
- 33
- Einzugcollection
- 44
- Grat an 3Burr on 3
- 55
- Grat an 8Burr on 8
- 5.15.1
- Oberseitetop
- 66
- Innenkonturinner contour
- 77
- Schnittfläche von 7Section of 7
- 88th
- Löcherholes
- 99
- Oberteiltop
- 1010
- Unterteillower part
- 1111
- FeinschneidstufeFine cutting stage
- 1212
- Umformstufeforming stage
- 1313
- Oberer BlockUpper block
- 1414
- Unterer BlockLower block
- 1515
- Querschiebercross slide
- 1616
- GesenkoberteilSwaging part
- 1717
- GesenkunterteilGesenkunterteil
- 1818
- Prägeglockeembossing bell
- 1919
- Auswerferejector
- 2020
- KalibrierstempelKalibrierstempel
- 2121
- Obere PrägedruckplatteUpper embossing plate
- 2222
- Oberer PrägeblockUpper stamping block
- 22a22a
- Obere ZusatzhydraulikUpper auxiliary hydraulics
- 2323
- Oberer DruckbolzenUpper pressure pin
- 2424
- Druckbolzen für AuswerferPressure pin for ejector
- 2525
- MatrizeneinfassungMatrizeneinfassung
- 2626
- Fassungversion
- 2727
- PrägeambosPrägeambos
- 2828
- Untere PrägedruckplatteLower embossing plate
- 2929
- Untere ZusatzhydraulikLower auxiliary hydraulics
- 3030
- Druckfedercompression spring
- 3131
- Untere DruckbolzenLower pressure bolts
- 3232
- Kopf des KalibrierstempelsHead of the calibration stamp
- 3333
- Kugelsegmentförmige VerdickungSpherical segmental thickening
- 3434
- Kalibrierbereichcalibration
- 3535
- Prägeschulter von 21Embossing school of 21
- 3636
- Innenwand von 19Inside wall of 19
- 3737
- Bolzenbolt
- 3838
- Schraubenbolzen für 21Bolts for 21
- 38a38a
- Prägeschulter von 19Embossing machine from 19
- 3939
- PrägepositionierplattePrägepositionierplatte
- 4040
- Abstimmplattetuning plate
- 4141
- Zwischenplatteintermediate plate
- 4242
- Bolzenbolt
- 4343
- Druckfederncompression springs
- 4444
- Kopfende von 21Head end of 21
- 4545
- Ringfläche von 27Ring area of 27
- 4646
- PrägewulstPrägewulst
- 4747
- Dicke des WerkstücksThickness of the workpiece
- DD
- GratprägeradiusGratprägeradius
- GRGR
- Höhe der Prägeschulter von 36Height of the embossing shoulder of 36
- HH
- Höhe der Prägeschulter von 39Height of the embossing shoulder of 39
- hH
- Hubrichtungstroke direction
- HRMR
Claims (18)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14002887.9A EP2987566B1 (en) | 2014-08-20 | 2014-08-20 | Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr |
ES14002887T ES2775248T3 (en) | 2014-08-20 | 2014-08-20 | Equipment and procedure for calibrating cutting surfaces with burrs on die-cut or precision-cut parts |
US14/819,975 US9707613B2 (en) | 2014-08-20 | 2015-08-06 | Device and method for shaping sheared edges on stamped or fine-blanked parts having a burr |
KR1020150115361A KR102193597B1 (en) | 2014-08-20 | 2015-08-17 | Device and Method for Shaping Sheared Edges on Stamped or Fine-Blanked Parts having a Burr |
JP2015160470A JP6516625B2 (en) | 2014-08-20 | 2015-08-17 | Device and method for correcting cut surfaces with burrs of punched or fine blanking parts |
CN201510514328.XA CN105382068B (en) | 2014-08-20 | 2015-08-20 | The device and method of the cut surface with burr on finishing stamping parts or fine part |
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EP14002887.9A EP2987566B1 (en) | 2014-08-20 | 2014-08-20 | Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr |
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EP2987566A1 true EP2987566A1 (en) | 2016-02-24 |
EP2987566B1 EP2987566B1 (en) | 2019-12-04 |
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EP14002887.9A Active EP2987566B1 (en) | 2014-08-20 | 2014-08-20 | Apparatus and method for calibrating cut surfaces of punched or fineblanked parts having burr |
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US (1) | US9707613B2 (en) |
EP (1) | EP2987566B1 (en) |
JP (1) | JP6516625B2 (en) |
KR (1) | KR102193597B1 (en) |
CN (1) | CN105382068B (en) |
ES (1) | ES2775248T3 (en) |
Cited By (3)
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DE102017123745A1 (en) * | 2017-10-12 | 2019-04-18 | Elha-Maschinenbau Liemke Kg | Method for processing a workpiece provided with a metal layer, and device for carrying out the method |
CN112775290A (en) * | 2019-11-04 | 2021-05-11 | 上海赛科利汽车模具技术应用有限公司 | Manufacturing method of mounting hole of pressure release valve on battery box |
CN114160662A (en) * | 2021-12-07 | 2022-03-11 | 乐清市匠心机械有限公司 | Stamping process and equipment for sheet workpiece |
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CN106001280B (en) * | 2016-07-11 | 2018-07-06 | 深圳市诚瑞丰科技股份有限公司 | The corner punching press of Metal Cutting part removes rough mold and its method |
EP3409392B1 (en) * | 2017-05-30 | 2022-12-28 | Feintool International Holding AG | Method for manufacturing stamped parts |
DE102018106609A1 (en) * | 2018-03-21 | 2019-09-26 | Knorr-Bremse Systeme für Schienenfahrzeuge GmbH | Method for reducing the shielding of a wheel brake disk for a rail vehicle and apparatus for carrying out the method |
CN108555061A (en) * | 2018-06-23 | 2018-09-21 | 东莞理工学院 | A kind of pressing stripping and slicing collection all-in-one machine for capableing of health maintenance |
KR102126397B1 (en) * | 2019-11-18 | 2020-06-24 | 인원희 | Apparatus for removing burr of ball bering |
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2014
- 2014-08-20 ES ES14002887T patent/ES2775248T3/en active Active
- 2014-08-20 EP EP14002887.9A patent/EP2987566B1/en active Active
-
2015
- 2015-08-06 US US14/819,975 patent/US9707613B2/en active Active
- 2015-08-17 KR KR1020150115361A patent/KR102193597B1/en active IP Right Grant
- 2015-08-17 JP JP2015160470A patent/JP6516625B2/en active Active
- 2015-08-20 CN CN201510514328.XA patent/CN105382068B/en active Active
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US3478558A (en) | 1967-03-09 | 1969-11-18 | Armco Steel Corp | Deburring tool |
CH665367A5 (en) | 1984-09-17 | 1988-05-13 | Feintool Ag | Eliminating material burr at edges of press-cut component - by at least one corrective cutting step on step-wise moving metal strip |
JPS6182937A (en) * | 1984-09-28 | 1986-04-26 | Nissan Motor Co Ltd | Manufacture of hollow stock |
DE4113165A1 (en) | 1990-04-27 | 1991-10-31 | Zahnradfabrik Friedrichshafen | Local hardening of machine parts around edges of holes - by pressing steel ball against hole edge |
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DE102004020483A1 (en) | 2004-04-26 | 2005-11-17 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Tool, machine and method for deburring cutting edges on workpieces |
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Cited By (3)
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DE102017123745A1 (en) * | 2017-10-12 | 2019-04-18 | Elha-Maschinenbau Liemke Kg | Method for processing a workpiece provided with a metal layer, and device for carrying out the method |
CN112775290A (en) * | 2019-11-04 | 2021-05-11 | 上海赛科利汽车模具技术应用有限公司 | Manufacturing method of mounting hole of pressure release valve on battery box |
CN114160662A (en) * | 2021-12-07 | 2022-03-11 | 乐清市匠心机械有限公司 | Stamping process and equipment for sheet workpiece |
Also Published As
Publication number | Publication date |
---|---|
JP6516625B2 (en) | 2019-05-22 |
EP2987566B1 (en) | 2019-12-04 |
CN105382068A (en) | 2016-03-09 |
CN105382068B (en) | 2019-11-08 |
KR20160022773A (en) | 2016-03-02 |
US20160052039A1 (en) | 2016-02-25 |
KR102193597B1 (en) | 2020-12-22 |
JP2016043416A (en) | 2016-04-04 |
ES2775248T3 (en) | 2020-07-24 |
US9707613B2 (en) | 2017-07-18 |
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