EP0037096B1 - Dispositif travaillant comme une poinçonneuse ou une presse - Google Patents

Dispositif travaillant comme une poinçonneuse ou une presse Download PDF

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Publication number
EP0037096B1
EP0037096B1 EP81102326A EP81102326A EP0037096B1 EP 0037096 B1 EP0037096 B1 EP 0037096B1 EP 81102326 A EP81102326 A EP 81102326A EP 81102326 A EP81102326 A EP 81102326A EP 0037096 B1 EP0037096 B1 EP 0037096B1
Authority
EP
European Patent Office
Prior art keywords
wedge
movement
displaceable
tool
machine member
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.)
Expired
Application number
EP81102326A
Other languages
German (de)
English (en)
Other versions
EP0037096A3 (en
EP0037096A2 (fr
Inventor
Jürgen Schulz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to AT81102326T priority Critical patent/ATE7769T1/de
Publication of EP0037096A2 publication Critical patent/EP0037096A2/fr
Publication of EP0037096A3 publication Critical patent/EP0037096A3/de
Application granted granted Critical
Publication of EP0037096B1 publication Critical patent/EP0037096B1/fr
Expired legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
    • B30B1/40—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by wedge means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/14—Crank and pin means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/16—Cam means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/38—Cutting-out; Stamping-out
    • B26F1/40—Cutting-out; Stamping-out using a press, e.g. of the ram type
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/538—Positioning of tool controlled
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8696—Means to change datum plane of tool or tool presser stroke
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8841—Tool driver movable relative to tool support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8841—Tool driver movable relative to tool support
    • Y10T83/8843—Cam or eccentric revolving about fixed axis
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/869—Means to drive or to guide tool
    • Y10T83/8821—With simple rectilinear reciprocating motion only
    • Y10T83/8867—With means to adjust tool position on tool holder

Definitions

  • the invention relates to a wedge press according to the first part of claim 1.
  • a wedge press is known from GB-A-780 165.
  • a machine for machining workpieces with high pressure in particular a high-pressure press, is known, in which a piston forming the movable tool is raised and lowered by means of two wedges which can be moved apart and apart.
  • a vibration wheel with large mass and internal eccentric surfaces is used to drive the wedges.
  • This machine is intended to deform a workpiece in pressing processes, with a short contact time being achieved in order to protect the tools against excessive temperature rise and to avoid heat loss of the workpiece. It is therefore the hot forming of metallic workpieces.
  • a machine for processing sheet metal in which a machine part provided with a tool can be raised and lowered in the direction of a fixed machine part by means of a wedge that can be moved transversely and can be moved back and forth by a hydraulic cylinder .
  • the transversely displaceable wedge is delimited on the top and on the bottom by inclined surfaces, which are assigned correspondingly inclined surfaces on the movable machine part and on the lower stationary machine part. Rollers are arranged between the pairs of surfaces.
  • a drop forging press is known as a tied crank press (DE-AS 1 265 548), which has a drive wedge for a tappet that can be moved horizontally from the crank pin of the crankshaft via a push rod.
  • the drive wedge is clamped to the plunger on the one hand and the machine frame on the other by bars.
  • the crank pin bearing is provided with an eccentric bushing which can be rotated by means of a worm gear. This allows the basic position of the drive wedge relative to the plunger and thus the position of the upper tool located on the plunger to be changed relative to a lower tool attached to the machine frame.
  • a pressure-medium-operated adjustment device is also provided in order to be able to shift the stroke before the last forging operation by the amount of spring deflection of the press in order to carry out the calibration process.
  • the object of the invention is to overcome existing shortcomings, disadvantages and difficulties and to create a wedge press with which high accuracy requirements with regard to the work process can be fulfilled in a convenient and relatively simple manner.
  • the invention also strives for an advantageous design of the device in detail and in the elements belonging to it. Further problems with which the invention is concerned arise from the respective explanation of the indicated solution.
  • the invention is characterized by the features specified in claim 1.
  • the fact that the movement surfaces are formed from the hard body surfaces to be explained in their details and their construction, it is possible to provide a displaceable wedge body for generating the working movement.
  • the hard body surfaces can be produced with such accuracy and flatness that, in cooperation with the wedge body, a high precision of the device and thus also a high level of work accuracy are achieved.
  • the hard body surfaces can slide directly onto one another.
  • rolling elements are advantageous between the movement surfaces Arrangements provided, in particular in the form of a needle bearing or the like. With corresponding cages made of plastic, as are known per se, so that there is no sliding friction.
  • the wedge body and / or the movable machine part can even be made of aluminum or a light metal alloy, which has the advantage that the size of the masses to be moved is reduced.
  • the invention provides that the tool is also fastened to the part carrying it on a hard body surface and / or that the machine part opposite the tool is also formed by a hard body surface. This further contributes to increasing the accuracy of the device and its operation.
  • a cam drive can advantageously be provided, for. B. an eccentric drive.
  • An adjusting device is advantageously assigned to the movable machine part. This can be designed particularly expediently so that the movable machine part can be displaced parallel to the direction of movement of the wedge body for its precise adjustment and is thereby adjusted in the direction of the working movement.
  • An eccentric drive in particular can be used for adjustment.
  • the device shown in FIGS. 1 and 2 has a base 1, a head part 3 firmly connected to it by means of a series of screw bolts 2 or corresponding rigid connecting elements, and a head part 3 up and down relative to the latter in the direction of arrow P1 in FIG. 1 movable machine part 4.
  • the latter therefore executes a movement as is necessary to carry out a pressing, cutting, punching or punching out process.
  • the device is suitable for punching out parts from an intermittently moving web, designated as a whole by the number 5, it being possible in particular for a combined web in which a self-adhesive layer is located on a carrier and one for forming labels or similar elements serving top layer made of paper or plastic.
  • the die cut should only cut through the web used to form the labels and, if necessary, the adhesive layer, but not the backing web. This requires extremely precise operation of the device.
  • a wedge body 6 which can be moved back and forth in the direction of arrow P2 (FIG. 1) by means of a drive by a given and preferably adjustable path.
  • This wedge body 6 is supported with a horizontal underside on the base 1 and causes with its upper inclined surface the vertical movement of the part 4 provided on its underside with a corresponding inclined surface.
  • a cam mechanism is provided for the movement of the wedge body 6, of the two curves 8, z. B. eccentric, the peripheral surfaces of which abut on sliders 9 on the wedge body 6.
  • Tension springs 10 or other suitable elements are used to ensure a permanent, fixed system when the curves 8 circulate.
  • the curves 8 are driven together by a motor, not shown, which is located in the pedestal and expediently its speed can be changed or controlled.
  • an adjusting device 11 which has two eccentrics 12, which are received by precise bores in projections 13 of the movable part 4 are.
  • the movable part 4 is displaced horizontally by a corresponding amount relative to the wedge body 6, the base being simultaneously lowered or raised due to the inclined surfaces. This setting is very sensitive because of the translation given by the sloping surfaces.
  • the common rotation of the eccentrics 12 can be carried out by a threaded spindle 15 to be rotated by means of the handwheel 14 and mounted in the base of the device, on which sit two nuts 16 on which levers 17 connected to the eccentrics 12 are connected in an articulated manner.
  • movement surfaces ie the top of the base 1 in the area of the wedge body 6, the bottom and top of the wedge body 6 and the inclined underside of the movable part 4 are formed by hard body surfaces F, between which rolling element arrangements 18 are provided are, in particular needle bearings or other rolling bearings suitable for linear movements.
  • the hard body surfaces F themselves are designed according to the invention as illustrated in FIGS. 3 to 6. 3 and 4 are in a hardened embedding 22, z. B. is an epoxy resin or a polyester resin, if necessary. With the addition of bronze or steel powder, balls 21 of the same shape and size held, the hardness of z. B. 65 to 68 Rockweil C. These can be ball bearing balls. These balls are ground to a part of their height after the investment has hardened, so that a large number of mutually adjacent end faces 23 (FIG. 4) result, which together form the hard surface F of the element E.
  • An element E of the type described can, for. B. be fixed by gluing or by clamping or in any other suitable manner on the aforementioned parts of the device.
  • hard surfaces F on parts 4 and 6 or 1 and 3 can also be produced directly on them.
  • the hard surface F results from the large number of individual end faces 23 of these ablated balls 21, the areas of the investment material in between, which still appear on the upper side, being small. This is exaggerated in Fig. 4 for better illustration.
  • the processed height H - h can be in particular in the range from 25% to 50%.
  • the part carrying the tool here the fixed head part 3 is equipped with a hard body surface F of the type described, so that the clamping or fastening of the tool, for example a steel strip cutting tool 19, with high accuracy is possible.
  • the part opposite the tool here the movable part 4
  • a support made of copper, brass or the like can be arranged on this when carrying out a punching process.
  • the wedge body 6 By arranging the hard body surfaces F, it is otherwise not necessary to design certain parts of the device, for example the wedge body 6, from a material of increased hardness or strength. Rather, the wedge body and / or the movable part can also consist of a non-ferrous material, primarily a light material such as aluminum or aluminum alloy. This allows u. a. also reduce the mass forces when working.
  • the device shown in FIGS. 1 and 2 is equipped with a quick adjustment device 30 for the movable machine part 4.
  • a quick adjustment device 30 for the movable machine part 4. This makes it possible to lower the movable machine part 4 regardless of its setting or adjustment for the working process by such an amount that, when the wedge body 6 is moved back and forth, the machine part 4 still moving up and down in the upper one upon a command The turning point of his working movement is so deep that the material web 5 is no longer punched or cut by the tool 19. This can be beneficial in several cases, e.g. B.
  • the quick adjustment device can be formed in various ways. There are all the designs within the scope of the invention with which the described effect can be achieved, in particular by moving the movable machine part 4 parallel to the direction of the arrow P2.
  • a device that is independent of an adjusting device or one that is combined with the latter can be provided. This is shown in the exemplary embodiment.
  • the threaded spindle 15 of the adjusting device 11 can be displaced with the nuts 16 in the axial direction by a sufficient amount, for example with the aid of a pressure medium cylinder 31, the piston rod 32 of the piston 33 displaceable therein being coupled to the threaded spindle 15 via a connection permitting the rotation of the latter.
  • the piston 33 has an end position which is precisely defined by a stop or the like, as a result of which the setting and exact working position of the movable machine part 4 which is effected by means of the handwheel 14 is ensured.
  • the piston 33 can be held in this position by the action of pressure medium or by a strong spring 34.
  • the piston 33 can be extended over its entire stroke or only a part thereof by supplying a pressure medium to the cylinder 31 via a valve 35, whereby it moves the threaded spindle 15.
  • the eccentrics 12 are rotated via the levers 17 in such a way that the movable machine part 4 undergoes a shift in size, to the left in FIG. 1, that it is only lifted vertically during the reciprocating movement of the wedge body 6, that the tool 19 can no longer cut the web 5.
  • the valve 35 can be actuated manually at the desired time, furthermore also by a program or in particular depending on the response of a sensor 36 scanning the path 5 (FIG. 1), which, for. B. is able to detect a temporary thickening of the web and can otherwise be formed in a manner known to those skilled in the art.
  • the number 37 in FIG. 2 denotes a control device which, on signals supplied by the sensor 36 via a line 38, causes the valve to be actuated.
  • the valve 35 can in particular also be actuated with a delay caused by a timing element in the control device 37, which is just selected so that the movable machine part 4 is adjusted by means of the device 30 to suppress a cutting process when the relevant one Location of the intermittently moving web is located under the tool 19.
  • the part 4 can be reset immediately afterwards by the device 30, so that the next working stroke is carried out normally again. Accordingly, the suppression of the cutting process is possible for several strokes if necessary.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Press Drives And Press Lines (AREA)
  • Sliding-Contact Bearings (AREA)
  • Earth Drilling (AREA)

Claims (13)

1. Presse à coin pour l'estampage d'objets plats à partier d'un matériau en forme de bande ou feuille, principalement pour la fabrication d'étiquettes adhésives, comportant un bâti (1), un élément de machine fixe (3) et un élément de machine (4) mobile en translation par rapport au précédent pour effectuer la course de travail, entre lesquels est disposé un outil (19), notamment un outil de coupe, presse dans laquelle un corps en forme de coin (6) agencé de façon à pouvoir être déplacé en va-et-vient entre le bâti (1) et l'élément de machine mobile (4) par un dispositif d'entraînement (7, 8), selon un mouvement de translation perpendiculaire à la direction de la course de travail, est prévu pour provoquer celle-ci, caractérisée en ce que les surfaces de déplacement appartenant au corps en forme de coin (6) et les surfaces de déplacement tournées vers celles-ci et appartenant aux éléments voisins (1, 4) sont constituées par des surfaces (F) en corps durs qui comportent des corps durs (21), de forme sphérique à l'état initial, pris dans une masse d'enrobage (22), dont la hauteur initiale (H) à été réduite, par usinage à abrasion à l'état enrobé, à une hauteur définitive (h) de telle sorte que, à l'état final ainsi obtenu, les faces frontales des corps durs (21) se présentent dans un plan.
2. Dispositif selon la revendication 1, caractérisé en ce que des dispositifs à corps de roulement (18) sont prévus, de façon en soi connue, entre les surfaces de déplacement (F).
3. Dispositif selon l'une des revendications 1 et 2, caractérisé en ce que l'outil (19) est fixé à l'élément (3) qui le porte, sur une surface en corps durs (F).
4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'élément (4) opposé à l'outil (19) possède une surface en corps durs (F).
5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce qu'un mécanisme à manivelle (8) est prévu pour assurer le mouvement en va-et-vient du corps en forme de coin (6).
6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que l'élément de machine mobile (4) est réglable en position parallèlement à la direction de déplacement (P2) du corps en forme de coin (6), à l'aide d'un dispositif de réglage (11).
7. Dispositif selon la revendication 6, caractérisé en ce qu'un mécanisme à excentrique (12, 13) est prévu pour le réglage.
8. Dispositif selon l'une des revendications 1 à 7, caractérisé par un dispositif de déplacement rapide (30) pour l'élément de machine mobile (4).
9. Dispositif selon la revendication 8 et l'une des revendications 6 et 7, caractérisé en ce que le dispositif de déplacement rapide (30) est combiné au dispositif de réglage (11) pour l'élément de machine mobile (4).
10. Dispositif selon l'une des revendications 8 et 9, caractérisé en ce que le dispositif de déplacement rapide (30) comporte un organe (33) susceptible d'être actionné par un fluide sous pression.
11. Dispositif selon l'une des revendications 8 à 10, caractérisé en ce que le dispositif de déplacement rapide (30) est agencé de façon à pouvoir être commandé sous la dépendance d'un élément (36) soumis à l'influence du matériau à traiter (5).
12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que le corps en forme de coin (6) est fait d'une matière non ferreuse.
13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce que l'élément de machine mobile (4) est fait d'une matière non ferreuse.
EP81102326A 1980-03-31 1981-03-27 Dispositif travaillant comme une poinçonneuse ou une presse Expired EP0037096B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81102326T ATE7769T1 (de) 1980-03-31 1981-03-27 Vorrichtung nach art einer stanze oder presse.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3012486A DE3012486C2 (de) 1980-03-31 1980-03-31 Vorrichtung nach Art einer Stanze oder Presse
DE3012486 1980-03-31

Publications (3)

Publication Number Publication Date
EP0037096A2 EP0037096A2 (fr) 1981-10-07
EP0037096A3 EP0037096A3 (en) 1982-03-17
EP0037096B1 true EP0037096B1 (fr) 1984-06-06

Family

ID=6098894

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102326A Expired EP0037096B1 (fr) 1980-03-31 1981-03-27 Dispositif travaillant comme une poinçonneuse ou une presse

Country Status (7)

Country Link
US (1) US4462291A (fr)
EP (1) EP0037096B1 (fr)
JP (1) JPS56152600A (fr)
AT (1) ATE7769T1 (fr)
CH (1) CH651494A5 (fr)
DE (2) DE3012486C2 (fr)
DK (1) DK150265C (fr)

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CN108890741B (zh) * 2018-07-25 2023-08-29 盐城市裕正精密机械有限公司 一种摆臂式裁断机的收料装置
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Also Published As

Publication number Publication date
DK140081A (da) 1981-10-01
CH651494A5 (de) 1985-09-30
DK150265C (da) 1987-11-30
DK150265B (da) 1987-01-26
US4462291A (en) 1984-07-31
EP0037096A3 (en) 1982-03-17
JPS56152600A (en) 1981-11-26
JPH0160400B2 (fr) 1989-12-22
DE3012486C2 (de) 1985-04-18
DE3163953D1 (en) 1984-07-12
DE3012486A1 (de) 1981-10-08
EP0037096A2 (fr) 1981-10-07
ATE7769T1 (de) 1984-06-15

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