EP0891235A1 - Feinschneidpresse mit ringzacken- und gegenhalterzylinder - Google Patents
Feinschneidpresse mit ringzacken- und gegenhalterzylinderInfo
- Publication number
- EP0891235A1 EP0891235A1 EP97907241A EP97907241A EP0891235A1 EP 0891235 A1 EP0891235 A1 EP 0891235A1 EP 97907241 A EP97907241 A EP 97907241A EP 97907241 A EP97907241 A EP 97907241A EP 0891235 A1 EP0891235 A1 EP 0891235A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- ring
- piston
- working
- cylinders
- 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
Links
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
- B30B1/32—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 plungers under fluid pressure
- B30B1/34—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 plungers under fluid pressure involving a plurality of plungers acting on the platen
-
- 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
- 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
- B30B1/26—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 cams, eccentrics, or cranks
-
- 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
- B30B1/32—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 plungers under fluid pressure
- B30B1/323—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 plungers under fluid pressure using low pressure long stroke opening and closing means, and high pressure short stroke cylinder means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0029—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height
- B30B15/0035—Details of, or accessories for, presses; Auxiliary measures in connection with pressing means for adjusting the space between the press slide and the press table, i.e. the shut height using an adjustable connection between the press drive means and the press slide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/045—Mountings of press columns
-
- 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
- Y10T83/202—With product handling means
- Y10T83/2092—Means to move, guide, or permit free fall or flight of product
- Y10T83/2096—Means to move product out of contact with tool
- Y10T83/2135—Moving stripper timed with tool stroke
- Y10T83/215—Carried by moving tool element or its support
- Y10T83/2153—Fluid pressure actuated stripper
-
- 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
- Y10T83/8858—Fluid pressure actuated
-
- 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
- Y10T83/929—Tool or tool with support
- Y10T83/9411—Cutting couple type
- Y10T83/9423—Punching tool
Definitions
- the invention relates to a hydraulically or mechanically driven fineblanking press with ring-serrated and counter-holding cylinders.
- An essential feature of fineblanking is the embossing of a ring serration parallel to the cutting line on the lead frame side in order to prevent the material from re-flowing here; the ring spike is impressed by the ring spike cylinder.
- counterholder a special sheet metal counterholder - hereinafter referred to as "counterholder”.
- the force of the ring-toothed cylinder which is arranged in the upper crosshead of the machine stand, counteracts the cutting force.
- the counter-holding cylinder which is integrated in the ram or in the working piston, presses the workpiece against the upper part of the tool; the counterholder support force counteracts the cutting force.
- the counter force of the ring-toothed cylinder is up to 50% and that of the counter holder up to 25% of the work force.
- the invention is based on the problem of greatly reducing the energy losses in a fineblanking press. It must be ensured during the cutting process of the fineblanking press, the pressing in of the ring serration and the clamping of the workpiece against the upper tool.
- the ring-toothed cylinder is integrated in a crossbar above the upper crosshead and is firmly connected to the plunger, so that it moves upwards in synchronism with the plunger.
- the counter-holding cylinder is arranged between the plunger and the lower crosshead of the stand.
- the piston of the ring-toothed cylinder is held in its lower position by a pressure-actuated support cylinder and thereby remains in constant contact with the pressure bolts of the upper tool.
- the piston of the counter-holding cylinder is held in its upper position by a pressure cylinder actuated support cylinder, as a result of which it remains in constant contact with the pressure bolts of the lower tool.
- a pressure cylinder actuated support cylinder By attaching the support cylinder piston to the tappet and integrating it into the counter-holder cylinder piston, it can move downwards when the pressure is released during the working stroke.
- the pressure cylinder-operated support cylinder pushes the counter-holding piston into its upper basic position and at the same time pushes the fine blanking part into the tool space.
- the power of the main drive can be fully used for cutting out the fine blanking part.
- a fineblanking press is now available whose energy losses are greatly reduced.
- This is achieved in particular by the arrangement of the ring-serrated and counter-holding cylinder, which clamps the lead frame or the fine blanking part during the working stroke of the ram without executing a stroke.
- the ring-toothed cylinder and the tappet during the working stroke There is no relative movement between the ring-toothed cylinder and the tappet during the working stroke; the ring-toothed cylinder support forces are absorbed by the ram.
- the work force of the main drive is not reduced by the ring-toothed cylinder pressing force.
- the counterholder cylinder support forces are applied by the stand taken.
- the work force of the main drive is not reduced by the counter-holding cylinder contact pressure.
- FIG. 1 is a sectional view of the fineblanking press with pretensioned, double-acting ring prongs, counterholders and working cylinders with the necessary control devices, the ring prong cylinder is firmly coupled to the ram via columns, in this embodiment there are center supports on the ring prongs and counterhold seen;
- FIG. 2 shows an embodiment according to FIG. 1, but with single-acting cylinder systems, the ring spikes and counterhold are designed without center support;
- FIG. 3 shows an embodiment according to FIGS. 1 and 2, but with installation space adjustment, the working cylinder is arranged in the upper crosshead of the stand, the ring-toothed cylinder is integrated in the piston of the working cylinder;
- FIG. 4 shows an embodiment according to FIG. 3, but with a single-acting cylinder
- FIG. 5 shows an embodiment according to FIG. 3, as a pre-tensioned fineblanking press with double-acting working, ring-serrated and counter-holding cylinders;
- FIG. 6 shows a fineblanking press with a working cylinder arranged in the lower crosshead of the stand and a ring-toothed cylinder coupled via columns, the counter-holding cylinder is integrated in the piston of the working cylinder, in addition there is an installation space adjustment with a fixed stop;
- FIG. 7 shows an embodiment according to FIG. 6, the ring-toothed cylinders are integrated on the columns in the cross member;
- FIG. 8 shows an embodiment according to FIG. 7, the ring-toothed cylinders are integrated on the columns in the ram;
- FIGS. 9 shows an embodiment according to FIGS. 1 and 7, the ring-toothed cylinders are integrated on the columns in the crossmember, the working cylinders on the columns in the stand;
- FIG. 10 shows an embodiment according to FIG. 9, the ring-toothed cylinders are on the columns in the crossmember, the double-acting working cylinders on the columns in
- FIG. 11 shows an embodiment according to FIG. 1, the infeed and working stroke is generated by a mechanical toggle or eccentric drive
- FIGS. 1, 2 and 3 shows an embodiment according to FIGS. 1, 2 and 3, the arrangement of the single-acting working cylinders takes place in the upper crosshead of the stand, in this embodiment an installation space adjustment is arranged below the plunger;
- 13 shows an embodiment according to FIG. 12, but with a double-acting, prestressed working cylinder;
- FIG. 14 shows an embodiment according to FIG. 3, but with central support of the ring prong and counter-holder part, and an installation space adjustment with a fixed stop, the working and ring prong cylinder is arranged in the crossmember, and the pressure medium-actuated support cylinder is located between the working and ring-toothed cylinder piston integrated, the infeed and return stroke is carried out by the counter-holder cylinder, the piston rod diameters were adjusted in such a way that the infeed stroke, the counter-holder contact pressure and the return stroke are carried out by differential switching, the upper crosshead is connected to the connecting elements Stand attached;
- FIG. 15 shows an embodiment according to FIG. 14, the traverse and the tappet are connected on both sides to a plate, they form a tappet which is elongated upwards, in addition guide elements are attached to the tappet and stand, the upper crosshead attached to the stand with fasteners;
- FIGS. 10 and 13 shows an embodiment according to FIGS. 10 and 13, the double-acting working cylinders are in the upper one
- FIG. 17 shows a sectional illustration of a fineblanking press with hydraulically preloaded, double-acting working, ring-toothed and counter-holding cylinders;
- Two working cylinders, a ring-toothed cylinder and two stripping cylinders are arranged in the upper traverse;
- the cross member and the pusher plate are laterally connected to a plate and together form a pusher which is elongated upwards;
- FIG. 18 shows an embodiment according to FIG. 17, but with single-acting cylinders
- FIG. 19 shows an embodiment according to FIG. 17, but with a reversal of the movable and fixed machine components.
- a solution is shown in which the columns 3 are firmly connected to the plunger 1.
- the columns 3 penetrate the stand 4 in the region of the upper crosshead and are firmly connected to the cross member 2 here.
- a double-acting ring serrated cylinder C is integrated in the traverse 2.
- Below the plunger 1 are the columns 3 with a paragraph that as Is formed 3.1 piston of the working cylinder A ⁇ seen
- the working cylinder A is made of the Zylindergena-_.se 5, which is integrated in Stander 4, and the piston 3.1, they c_lden the pressure medium-beta-saturated cylinder chamber 5.1.
- a cylinder B unit is arranged between the ram 1 and the upper crosshead of the stand 4; the hydraulic effective area of the piston 7 is the same size as the piston area 3.1.
- the counter-aged cylinder D is integrated below the plunger 1 in the lower crosshead of the stand 4.
- the fineblanking press is shown here in the lower starting position.
- the ram 1 is moved upwards by the Schr.ellhuD cylinder G.
- the piston 7 displaces the pressure medium from the cylinder space 6.1 of the cylinder B, the pressure medium is supplied via line 27.1.
- Valve 26 and line 27 m the cylinder space 5.1 of Zylin ⁇ der A shifted.
- the piston 35 of the counter-holding cylinder D is connected to the plunger 1 by the piston 44 of the pressure medium-loaded cylinder F; it remains in constant contact with the pressure bolts 36 and moves upwards with the feed movement of the plunger 1.
- the piston 44 is firmly connected to the plunger 1 via connecting elements 46. Due to the upward movement of the piston 33, the pressure medium is shifted from the cylinder space 39 via line 37, valve 38 and line 37.1 into the cylinder space 34.
- valves 26, 16, 38, 22 and 43 are switched from switch position "0" to switch position "1".
- the force of the cylinder A which remains connected to the pressure medium source 40, takes effect immediately, since the cylinder space 6.1 of the cylinder B is connected to the tank via the valve 26.
- the contact force of the ring-toothed cylinder C also takes effect immediately after the valve 16 has been switched over, since the cylinder chamber 12 remains connected to the pressure medium source 18 and the cylinder chamber 15 is connected to the tank 17 via the valve 16.
- the contact pressure is transmitted via the pressure bolts 9 into the fineblanking tool for pressing in the ring-toothed contour.
- the ring-toothed cylinder support force is passed from the housing 8 into the cross member 2 and from here via the pillars 3 into the plunger 1. During the working stroke, there is no relative movement between ring-toothed cylinder C with piston 13 and plunger 1. The worker of the The main drive is not reduced by the ring spike contact pressure.
- the piston 21 of the cylinder E is relieved of pressure at the beginning of the working stroke via the valve 22 switch position "1", the piston 13 can be displaced upwards.
- the pressing force of the counter-holding cylinder D also takes effect immediately after the valve 38 has been switched over, since the cylinder space 34 remains connected to the pressure medium source 40 and the cylinder space 39 is connected to the tank 41 via the valve 38.
- the contact pressure is transferred via the pressure bolts 36 into the fineblanking tool for pressing on the workpiece.
- the counter-holder cylinder support force is transmitted from the housing 30 into the stand 4. During the working stroke, there is no relative movement between the counter-holding cylinder D and the workpiece in the tool.
- the piston 44 of cylinder F is relieved of pressure at the beginning of the working stroke via valve 43 switch position "1"; the piston 35 moves downwards relative to the working stroke of the ram 1.
- the work force of the main drive is not reduced by the counter pressure.
- valves 26, 16, 38, 22 and 43 are switched from switch position "1" to switch position "0".
- the cylinder space 6.1 of the cylinder B is connected to the pressure medium source 40 via the valve 26 and generates one G egenkraft to the fluid-operated cylinder A, the Ar ⁇ beitskraft is canceled.
- the cylinder space 15 of the ring-toothed cylinder C is connected to the pressure medium source 18 via the valve 16 and generates a counterforce to the cylinder space 12, the ring-toothed force is released.
- the support cylinder E is pressurized by switching valve 22 and pushes the piston 13 into its lower starting position; in this case the lead frame is ejected via the pressure bolts 9.
- the cylinder space 39 of the counter-holding cylinder D is connected to the pressure medium source 40 via the valve 38 and generates a counterforce to the cylinder space 34; the counter-holding force is released.
- the support cylinder F is pressurized by switching valve 43 and pushes the piston 35 into its upper starting position, in this case the fine stamping part is ejected via the pressure bolt 36.
- the ram 1 is moved downward into the basic position of the machine by the rapid stroke cylinder G, the fine blanking cycle is ended.
- the fineblanking press with single-acting cylinder systems is shown here.
- the arrangement of the ring-toothed cylinder C2 in the crossmember 2 and the counter-holding cylinder D2 between the plunger 1 and the stand 4 corresponds to FIG. 1
- Fineblanking press is shown in the starting position.
- the ram 1 is moved upwards by the rapid stroke cylinder G.
- Delivery strokes are pressure medium via the suction valves 2.28, 2.15 and 2.39 sucked into the main, ring prong and counter holding cylinder.
- the valves 2.16, 2.26, 2.38 are switched from switch position "0" to "1". Cylinder rooms 2.51, 2.12 and 2.33 are pressurized.
- the working cylinder A2 generates the
- the cylinder space 2.33 of the counter-holding cylinder D2 is pressurized at the start of the working stroke.
- the cylinder housing 2.30 which is connected to the pressure bolt 2.36 and the plunger 1 via the support cylinder F, transmits the contact pressure to the workpiece via the pressure bolts 2.36.
- the counterholder support force is transferred into the stand 4 via the piston 2.31. During the working stroke there is no relative movement between the counter-holding cylinder D2 and the workpiece. The counter cylinder support force does not reduce the work force of the master cylinder.
- valves 2.16.2.22.2.39 and 2.43 are switched from switch position "1" to “0” and valve 2.26 from switch position "1" to “2".
- the cylinders A2, C2 and D2 are depressurized, the support cylinders E and F are pressurized.
- the support cylinder E pushes the punching grid and the support cylinder F the workpiece, as described in Fig. 1, out.
- FIG. 3 A fineblanking press is shown in a similar design to that described in FIGS. 1 and 2.
- the working cylinder A3 is arranged in the upper crosshead of the stand 4.
- the area of the piston 3.5.2 is approximately the same size as the four areas of the piston 7.
- the force of the cylinder A3 is the same as the forces of the four cylinders B3.
- the ring-toothed cylinder C3 is integrated in the piston 3.5.2 of the working cylinder A3.
- the active surfaces 3.12 and 3.15 correspond to the surfaces 12 and 15 according to FIG. 1.
- the course of the working cycle can be seen from the description according to FIG. 1.
- the fineblanking press is provided with an installation space adjustment 3.6, which is arranged below the ram 1.
- the columns 3 are provided with a thread 3.6.1 at the lower end.
- the threaded nut 3.7 is rotatably fastened to the plunger 1 with fastening elements 3.7.1.
- the threaded nuts 3.7 are provided with teeth for chain or toothed belt drives.
- the four nuts 3.7 are adjusted synchronously via a chain or a toothed belt. The adjustment can be carried out in such a way that the stop surface 7.1 of the piston 7 hits the cylinder housing 6 at the end of the working stroke when the fineblanking tools are of different heights.
- the example here shows a fineblanking press with single-acting cylinder systems.
- the mode of operation and operation is similar to that described in FIG. 2, the cylinder arrangement is similar to that shown in FIG. 3.
- FIGS. 1 and 3 Shown is a fineblanking press, the operation of which was described in FIGS. 1 and 3.
- the four preload cylinders B and B3 (FIGS. 1, 3) are replaced by a cylinder B5.
- the cylinder B5 is arranged between the stand 4 and a second crossbeam 5.2.
- An installation space adjustment 3.6, as described in FIG. 3, is arranged below the cross member 5.2.
- This embodiment of the fineblanking press differs from the embodiment according to FIG. 1 in that the four working cylinders A are replaced by a cylinder A6 with installation space adjustment.
- the counter-holding cylinder D6 is integrated in the piston 6.6 of the working cylinder A6.
- the mode of operation is described in FIG. 2 for the main drive and in FIG. 1 for the ring-toothed and counter-holding cylinder.
- the working and serrated cylinders are arranged on the columns 3 of the fineblanking press; an installation space adjustment, as shown in FIG. 3, can alternatively be installed.
- the ring-toothed cylinders C9 are designed as shown in FIG. 7, and the working cylinders A9 correspond to the embodiment according to FIGS. 1 and 2.
- a double-acting working cylinder A10 is arranged in the lower crosshead of the stand 4.
- the method of operation corresponds to that of FIG. 1.
- a fineblanking press with a mechanical main drive is shown.
- the main drive can, as shown, be designed as an eccentric or, as not shown, as a toggle lever drive.
- the delivery, working and return stroke of the ram 1 is carried out by the mechanical drive.
- the mode of operation of the ring-tooth cli and counter-holding cylinder DU corresponds to the description according to FIG. 1.
- An installation space adjustment, as shown in FIG. 4, allows the use of tools with different heights.
- the work force of the mechanical main drive is not reduced by the ring spike and counter-pressure.
- FIG. 12 A single-acting cylinder A12 is in the upper
- the fine blanking press shown is identical in construction to the embodiment according to FIG. 12, only the working cylinder is double-acting. For the mode of operation, see Fig. 1.
- a working cylinder A14, a ring prong cylinder C14, a supporting cylinder E14 and an installation space adjustment with a fixed stop are integrated in a cylinder piston unit.
- the stand 4 is not used by the worker.
- the feed and return stroke of the ram is additionally carried out by the counter-holding cylinder.
- the piston rod diameters were adjusted in such a way that the delivery stroke, the counter-holding pressure and the return stroke are carried out by differential switching.
- the differential surface 14.40 pushes the piston including the plunger 1 and crossbar 2 upwards.
- the valve 14.38 is switched to position "2"
- the cylinder space 14.39 is relieved of pressure
- the cylinder space 14.34 remains connected to the pressure medium source and thus generates the counterpressure pressure.
- the return stroke is initiated by position "3", the cylinder space 14.34 being connected to the tank and the cylinder space 13.39 being connected to the pressure medium source. In UT it is switched to position "0".
- the cross member 2 and the plunger 1 are connected on both sides to a plate 15.2; they form a plunger elongated upwards.
- guide elements 15.6 and 15.8 are attached to the plunger 1 and stand 4.
- the upper crosshead 4.1 is fastened to the stand 4 with connecting elements, and the columns 3 from FIG. 14 are replaced by the plates 15.1.
- the stand 4 is not claimed by the force of the working cylinder A.
- FIG. 16 In this embodiment according to FIGS. 10 and 13, the double-acting working cylinders A16 in the upper crosshead 4.1 are arranged around the columns 3 and the ring-toothed cylinders C16 in the cross member 2 are also arranged around the columns 3.
- the conventional center support is omitted.
- the holes 16.10 for the ring serrated pressure bolts 16.9 are not arranged around the middle, but are distributed in the upper transverse 4.1 at all.
- the stand 4 is not stressed by the force of the working cylinder A16.
- FIG. 17 shows an embodiment in which the cross member 2 is designed as a cylinder housing.
- Two working cylinders A17, a ring-toothed cylinder C17 and two stripping cylinders E17 are integrated in the traverse 2.
- the two double-acting working cylinders A17 are arranged laterally in the cross member 2.
- the lower piston A17.2 forms together with the cylinder housing 2 (here designed as a traverse) the lower cylinder space A17.3.
- the upper cylinder space A17.4 is formed by the cylinder housing 2 and the upper piston rod A17.5.
- the two lower piston rods A17.2 are firmly connected to the upper crosshead 4.1 via connecting elements A17.9.
- the two upper piston rods A17.5 are connected to a plate which is designed as a hydraulic distributor block A17.10.
- the double-acting ring-tooth cylinder C17 is arranged in the middle between the working cylinders A17.
- the lower piston C17.1 forms together with the
- Cylinder housing 2 the lower cylinder chamber C17.2.
- the upper cylinder chamber C17.4 is formed by the cylinder housing 2 and the upper piston rod C17.5.
- a plate E17.4 is fastened to the ring-toothed cylinder piston C17.1, on which the pressure bolts 9 are supported.
- the scraper cylinders E17 are integrated in the piston A17.2.
- the two support cylinders E17 arranged on the side can hydraulically compensate for eccentric loads on the ring spike forces.
- the ram plate 1 forms with the plates 3 'and the cross member 2 the press ram.
- the counter-holding cylinder is D17 arranged below the plunger plate 1 in the lower crosshead of the stand 4.
- the two support cylinders F17 arranged on the side can hydraulically compensate for eccentric loads on the counter-holding forces.
- the discharge cylinders F17 are attached to the plunger plate 1.
- the stand 4 is not stressed by the working force of the working cylinders A17.
- FIG. 18 In contrast to the fineblanking press according to FIG. 17, the working, ring-serrated and counter-holding cylinders are single-acting here. For the mode of operation of the press, see FIGS. 2 and 17.
- a fineblanking press as described in FIG. 17, is shown, wherein the movable and fixed machine components have been reversed.
- the ram plate 1 ' is firmly connected to the machine stand, and the function of the press ram is taken over by the movable ram 4.1'.
- the ram plate 1 ', the crossbeam A19.1 and the plates 3' are firmly connected to one another, together they form the stand of the fineblanking press.
- the plates 3 ' are extended downwards via the ram plates 1' and form the foot of the stand in the region 3.2 '. With the traverse A19.1, the housing of the two working cylinders A19 and the housing of the ring-toothed cylinder C19 are firmly connected to the stand.
- the two lower piston rods A19.2 of the working cylinders A19 are fastened to the movable plunger 4.1 'by connecting elements A19.9.
- the piston rod C19.1 of the serrated cylinder C19 is via the plate E19.4 by hydraulic coupling of the supporting cylinder E19 97/35675 PCMB97 / 00312
- the ram 4.1 'and the crossbar D19.9 are connected to one another by the plates 4' and connecting elements D19.8. Columns could also be used instead of the plates 3 ', 4'.
- the feed cylinders G19 are attached with their cylinder housings to the plates 3 'with the piston rods to the plunger 4.1'.
- the plunger 4.1 'and the housing D19.6 of the counter-holding cylinder D19 which is firmly connected to it are moved downward via the feed cylinder G19.
- the pressure medium is shifted from the upper cylinder spaces into the lower cylinder spaces.
- the operation of the double-acting cylinders is described in Fig. 1.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Press Drives And Press Lines (AREA)
- Shearing Machines (AREA)
- Control Of Presses (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Executing Machine-Instructions (AREA)
- Centrifugal Separators (AREA)
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19612351 | 1996-03-28 | ||
DE19612351 | 1996-03-28 | ||
PCT/IB1997/000312 WO1997035675A1 (de) | 1996-03-28 | 1997-03-27 | Feinschneidpresse mit ringzacken- und gegenhalterzylinder |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0891235A1 true EP0891235A1 (de) | 1999-01-20 |
EP0891235B1 EP0891235B1 (de) | 2003-10-08 |
Family
ID=7789734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97907241A Expired - Lifetime EP0891235B1 (de) | 1996-03-28 | 1997-03-27 | Feinschneidpresse mit ringzacken- und gegenhalterzylinder |
Country Status (9)
Country | Link |
---|---|
US (1) | US6240818B1 (de) |
EP (1) | EP0891235B1 (de) |
JP (1) | JP2000507880A (de) |
KR (1) | KR20000005076A (de) |
CN (1) | CN1219895A (de) |
AT (1) | ATE251512T1 (de) |
DE (2) | DE19642635A1 (de) |
ES (1) | ES2208880T3 (de) |
WO (1) | WO1997035675A1 (de) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19929163C1 (de) * | 1999-06-25 | 2001-01-18 | Feintool Internat Holding Ag L | Vorrichtung zum Feinschneiden von Werkstücken aus einem Blech |
DE10005023C2 (de) * | 2000-02-04 | 2002-11-21 | Feintool Internat Holding Ag L | Feinschneidpresse |
JP4865963B2 (ja) * | 2001-08-06 | 2012-02-01 | 株式会社大平製作所 | 線棒材のプレス加工方法および装置 |
DE102004006126B4 (de) * | 2004-02-07 | 2006-12-28 | Horst Baltschun | Presse mit verriegeltem Stößel |
DE102005053350A1 (de) * | 2005-11-07 | 2007-05-10 | Schuler Pressen Gmbh & Co. Kg | Presse mit Schnittschlagdämpfung |
JP4939173B2 (ja) * | 2006-11-01 | 2012-05-23 | しのはらプレスサービス株式会社 | 横型対向スライド式プレス機械 |
DE502007003169D1 (de) * | 2007-09-26 | 2010-04-29 | Feintool Ip Ag | Verfahren und Vorrichtung zum Herstellen von Stanzteilen mit weitgehend glatter Schnitt- und vergrösserter Funktionsfläche |
DE102009017626B3 (de) * | 2009-04-16 | 2010-12-16 | Horst Baltschun | Feinschneidpresse |
US8739697B1 (en) * | 2009-10-29 | 2014-06-03 | Us Synthetic Corporation | High pressure press with tensioning assembly and related methods |
DE102011016669B4 (de) * | 2011-04-12 | 2016-03-24 | Schuler Pressen Gmbh | Verfahren zum Betreiben einer Presse mit Unterantrieb und danach betriebene Presse |
EP2608299B1 (de) * | 2011-12-22 | 2014-04-09 | Feintool Intellectual Property AG | Verfahren und Vorrichtung zum Herstellen von metallischen Bipolarplatten |
DE102012025134A1 (de) * | 2012-12-21 | 2014-06-26 | Uniflex-Hydraulik Gmbh | Umformpresse |
DE102013001165B3 (de) * | 2013-01-23 | 2014-07-03 | Horst Baltschun | Tiefziehen und Feinschneiden mit energieeffizienter Presse |
DE102013015180A1 (de) * | 2013-09-11 | 2015-03-12 | Webo Werkzeugbau Oberschwaben Gmbh | Verfahren und Vorrichtung zum Präzisionsschneiden von Werkstücken in einer Presse |
ES2839073T3 (es) * | 2015-07-06 | 2021-07-05 | Feintool Int Holding Ag | Dispositivo y procedimiento para el control del accionamiento principal de una prensa troqueladora de precisión |
ES2665767T3 (es) * | 2015-07-06 | 2018-04-27 | Feintool International Holding Ag | Equipo y procedimiento para retirar/expulsar una retícula de estampado/pieza conformada interiormente y eyección de una pieza cortada en una prensa de corte de precisión |
EP3115120B1 (de) * | 2015-07-06 | 2018-09-05 | Feintool International Holding AG | Feinschneidpresse |
CN105127273B (zh) * | 2015-09-30 | 2017-09-12 | 苏州索力旺新能源科技有限公司 | 一种导电片连接点冲断机构 |
DE102015016102A1 (de) * | 2015-12-11 | 2017-06-14 | Schuler Pressen Gmbh | Feinschneidpresse |
DE102015016149A1 (de) | 2015-12-12 | 2017-06-14 | Ulrich Keller | Hochfrequenzzylinder |
EP3736061B1 (de) * | 2019-05-06 | 2024-08-07 | Lapmaster Wolters GmbH | Feinschneidesystem und verfahren zum betreiben desselben |
CN111572083B (zh) * | 2020-04-17 | 2021-04-13 | 江苏国力锻压机床有限公司 | 一种玻璃钢制品液压机 |
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DE1249805B (de) * | 1967-09-14 | |||
US2547118A (en) * | 1944-11-30 | 1951-04-03 | Baker Perkins Inc | Biscuit and like cutting and embossing machine |
US2642138A (en) * | 1951-03-07 | 1953-06-16 | Macewka John | Hydraulically actuated press |
CH370618A (de) * | 1959-03-04 | 1963-07-15 | Almatic Ag | Hydraulisch gesteuerte Stanzpresse |
US3570343A (en) * | 1968-10-18 | 1971-03-16 | Dro Systems Inc Di | Structure for fine blanking |
US3564959A (en) * | 1968-11-29 | 1971-02-23 | Aida Tekkosho Kk | Fine blanking press |
US3611854A (en) * | 1969-10-30 | 1971-10-12 | Vitaly Konstantinovich Gilev | Compound die for punching two concentrically shaped sheet circular members from strap material in punch presses with vertical disposition of blanking planes |
US3771396A (en) * | 1971-11-18 | 1973-11-13 | Amplex Corp | Magnetic tape press |
CH551812A (de) * | 1972-03-03 | 1974-07-31 | Hydrel Ag | Feinstanzpresse. |
NL7501729A (nl) * | 1975-02-14 | 1976-08-17 | Perswerk De Jong B V | Werkwijze voor het omzetten van een enkele drukkracht in afzonderlijke drukkrachten, als- mede inrichting voor het uitvoeren van de werkwijze. |
AU571538B2 (en) * | 1983-06-28 | 1988-04-21 | Repco Ltd. | Hydraulic press |
US4662256A (en) * | 1985-05-13 | 1987-05-05 | Rochez Bros. Inc. | Die set |
DE3728418A1 (de) * | 1987-08-26 | 1989-03-09 | Horst Baltschun | Dynamisch vorgespannte druckmittelbetaetigte presse |
DE3808344A1 (de) * | 1988-03-12 | 1989-09-28 | Horst Baltschun | Saeulenpresse fuer grosse aussermittige belastungen und schnittschlagdaempfung |
US4934230A (en) * | 1988-08-24 | 1990-06-19 | Wallis Bernard J | Die stamping system |
DE3931320C1 (de) * | 1989-09-20 | 1991-08-08 | Feintool International Holding, Lyss, Ch | |
US5692423A (en) * | 1995-05-09 | 1997-12-02 | Kabushiki Kaisha Fujikoshi | Vibration finishing method and apparatus for same |
US5749279A (en) * | 1996-03-20 | 1998-05-12 | General Motors Corporation | Hydraulic punch actuator with centering apparatus |
-
1996
- 1996-10-16 DE DE19642635A patent/DE19642635A1/de not_active Withdrawn
-
1997
- 1997-03-27 ES ES97907241T patent/ES2208880T3/es not_active Expired - Lifetime
- 1997-03-27 JP JP9534190A patent/JP2000507880A/ja not_active Ceased
- 1997-03-27 EP EP97907241A patent/EP0891235B1/de not_active Expired - Lifetime
- 1997-03-27 AT AT97907241T patent/ATE251512T1/de not_active IP Right Cessation
- 1997-03-27 KR KR1019980707706A patent/KR20000005076A/ko not_active Application Discontinuation
- 1997-03-27 DE DE59710835T patent/DE59710835D1/de not_active Expired - Fee Related
- 1997-03-27 US US09/155,434 patent/US6240818B1/en not_active Expired - Fee Related
- 1997-03-27 WO PCT/IB1997/000312 patent/WO1997035675A1/de active IP Right Grant
- 1997-03-27 CN CN97194980A patent/CN1219895A/zh active Pending
Non-Patent Citations (1)
Title |
---|
See references of WO9735675A1 * |
Also Published As
Publication number | Publication date |
---|---|
WO1997035675A1 (de) | 1997-10-02 |
DE19642635A1 (de) | 1997-10-02 |
CN1219895A (zh) | 1999-06-16 |
EP0891235B1 (de) | 2003-10-08 |
DE59710835D1 (de) | 2003-11-13 |
US6240818B1 (en) | 2001-06-05 |
ATE251512T1 (de) | 2003-10-15 |
ES2208880T3 (es) | 2004-06-16 |
KR20000005076A (ko) | 2000-01-25 |
JP2000507880A (ja) | 2000-06-27 |
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