EP3115120B1 - Feinschneidpresse - Google Patents

Feinschneidpresse Download PDF

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Publication number
EP3115120B1
EP3115120B1 EP15002021.2A EP15002021A EP3115120B1 EP 3115120 B1 EP3115120 B1 EP 3115120B1 EP 15002021 A EP15002021 A EP 15002021A EP 3115120 B1 EP3115120 B1 EP 3115120B1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
stripping
expulsion
ring
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.)
Active
Application number
EP15002021.2A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3115120A1 (de
Inventor
Hans-Ruedi Honegger
Andreas Dipl.-Ing. Walther
Alex Wehrli
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.)
Feintool International Holding AG
Original Assignee
Feintool International Holding AG
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 Feintool International Holding AG filed Critical Feintool International Holding AG
Priority to ES15002021T priority Critical patent/ES2701853T3/es
Priority to EP15002021.2A priority patent/EP3115120B1/de
Priority to KR1020160084659A priority patent/KR102333506B1/ko
Priority to CN201610524486.8A priority patent/CN106335209B/zh
Priority to JP2016133068A priority patent/JP6660832B2/ja
Priority to US15/203,547 priority patent/US10081046B2/en
Publication of EP3115120A1 publication Critical patent/EP3115120A1/de
Application granted granted Critical
Publication of EP3115120B1 publication Critical patent/EP3115120B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/04—Frames; Guides
    • B30B15/042—Prestressed frames
    • 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
    • B21D37/00—Tools as parts of machines covered by this subclass
    • B21D37/10—Die sets; Pillar guides
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
    • B21D43/02—Advancing work in relation to the stroke of the die or tool
    • 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
    • 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
    • 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
    • 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
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/026—Mounting of dies, platens or press rams
    • 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
    • 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
    • B21D28/002—Drive of the tools

Definitions

  • the invention relates to a fine blanking press comprising a head piece, a foot piece and head and foot frictionally connecting tie rods and columns, with a headpiece arranged in the ring-shaped cylinder in which a serrated piston is moved to move the serrated pin, arranged in the foot piece, a lifting movement exporting and a main plate / plunger carrying a counter-holding cylinder space in which a counter-holding piston is guided, a coaxial with the Hubachse arranged central actuating mechanism of an adjusting nut with internal thread and annular teeth cylinder with external thread for adjusting the upper installation space with respect to the main piston and a hydraulic system for supplying the in-head and foot arranged cylinder chambers with a set to a predetermined pressure fluid.
  • Press racks made of composite components are well known.
  • the DE 471 188 C2 discloses a press frame with fixed and rigidly interconnected spars, which are each connected at its two ends by a frame-like connector made of cast steel.
  • a press frame with composite body and guide tools is known in which the press table relative to the crosshead is displaceable perpendicular to the pressing direction and the crosshead is fixed.
  • a two-stand press for cutting or punching of boards from a strip of material is in the DE 22 58 655 C3 described, with the head piece, the stand and the table are connected to each other via tie rods and braced. All these known press racks have in common that the upper crosshead or yoke is fixed and thus no adjustment of the upper installation space is possible, so that these solutions are not suitable for fineblanking.
  • a hydraulic fine cutting head for a mechanical press according to the preamble of claim 1 is known, which is held on a machine frame of the press patch head above a table top bearing, a lifting movement performing ram axially aligned with its stroke axis.
  • the collar through Screw on the side facing the plunger side of the head piece is secured against rotation.
  • the tubular part of the master cylinder is inserted concentrically, in which a serrated piston and a Tastkolben are arranged, wherein the master cylinder with a cover pressure-tight or a holding plate is closed.
  • the master cylinder is connected to a hydraulic system that supplies the master cylinder with a fluid adjusted to a predetermined pressure.
  • an adjusting mechanism comprising an adjusting nut provided with an inner movement thread and an outer movement thread arranged at the head of the master cylinder, the hydraulic head is driven by a toothed ring fixed non-positively to an end face of the adjusting nut, a hydraulic motor with drive shaft held on the head piece, and the drive shaft the motor and the sprocket wrap around drive chain, an adjustable deliverable on the drive shaft brake in its position to the plunger, wherein the movement threads are in communication with a channel for supplying the adjusted to a control pressure fluid of the hydraulic system for the purpose of axial clearance and clearance of the thread play ,
  • This known fine cutting head requires a number of free spaces for application of hydraulic and / or lubricant, which reduces the rigidity of the construction and thus the necessary for fine cutting high power transmission.
  • this head piece is complicated by the large number of parts and the adjusting nut is secured only by
  • the present invention seeks to provide a fine blanking press, the press frame is characterized by a high rigidity, lower mass and simple structure and which allows higher cutting forces during fine cutting under safe elimination of the axial play between the adjusting elements at the same time Improve operational safety transfer.
  • the solution according to the invention is based on the knowledge to increase the rigidity of the press frame by reducing the number of components and in particular to form the head and foot more compact and solid.
  • the annular toothed cylinder is formed as an integrally molded core body in the head piece on which a separate stripping / ejection cylinder is arranged with stripping / ejection piston in alignment with the lifting axis, and the counter-holding piston in the main piston is assigned an ejector, wherein the Abstreif- / ejection piston and the ejector piston are each assigned independent pressure chambers, which are hydraulically connected to each other, and that the Abstreif- / ejection cylinder / core body at least two diametrically opposed biasing piston associated with piston rods on the head piece, which are each guided in a pressurized with fluid of the hydraulic system biasing cylinder chamber in the head piece perpendicular to the adjusting nut, the piston rods are connected by a positioning cross so in that an adjusting movement of preload
  • a further preferred embodiment of the fine blanking press according to the invention provides that the positioning traverse has a foot arranged perpendicularly to the lifting axis, which footrest is mounted in the core body on the stripping / ejecting cylinder attached to the core body for introducing the force. This ensures that the axial play between the internal thread of the adjusting nut and the external thread of the core body either by the adjusting movement of the biasing piston and piston rods either repeals or adjusts.
  • the stripping / ejecting cylinder forms a cylinder chamber, which is hydraulically separated from the serrated cylinder chamber and accommodates the cylinder with the serrated piston on the lifting axis Abstreif- / ejection piston whose piston rod passes centrally through the cylinder chamber in the ring-shaped piston and is attached to a ring-neck piston associated ejection plate, wherein the ejection plate is operatively connected to guided in a perforated bottom ringtail pin and pressure pin for separate transmission of the ring-tooth force and stripping force.
  • the serration pins are arranged coaxially to the stroke axis and are supported on a serrated piston plate for moving the ring spike, wherein the serrated piston plate surrounds a support body having through holes in which pressure pins are arranged to move vertically movable.
  • the core body has on its side facing the top of the head piece a tube-like neck on which the stripping / ejection cylinder is pressure-tight and frictionally secured, so that the core body with the stripping / Ejection cylinder in the head piece can form a compact unit, wherein the core body is held on its side facing the bottom of a cover for covering the sprocket, which is fixed to the underside of the head piece.
  • the cylinder space of Stripping / ejection cylinder with a lid pressure-tight manner through which a supply line connected to the hydraulic system for supplying a first working space of the stripping / ejection piston in the cylinder space of the stripping / ejection cylinder is guided with fluid.
  • the stripping / ejection cylinder is provided in its wall region with a parallel and perpendicular to the lifting axis extending channel for applying a second working space of the stripping / ejection piston in the cylinder chamber of the stripping / ejection cylinder with fluid predetermined pressure from the hydraulic system . Furthermore, it is provided that the stripping / ejection cylinder is provided in its wall region with a further channel for pressurizing a working space for the annular toothed piston in the core body with fluid of predetermined pressure from the hydraulic system. All of these features ensure that the compact core body and wiper / ejection cylinder assembly can be connected to the head end of the hydraulic system.
  • the stripping / ejection cylinder has in its wall region at least two channels running parallel in the direction of the lifting axis for supplying fluid of predetermined pressure from the hydraulic system into the serrated cylinder chamber. This ensures that the cylinder chamber of the stripping / ejection cylinder and the serrated cylinder chamber can each be acted upon separately with fluid correspondingly adapted pressure.
  • the core body and the stripping / ejection cylinder by at least two diametrically opposed groove pieces held against rotation on the head, so that the core body and the stripping / ejection cylinder can not change their radial position even when operating the adjusting nut.
  • At least one channel is introduced into the head piece, which opens into the cylinder space of the biasing piston for supplying fluid and pressurizes the cylinder chamber to generate the actuating force for locking or loosening the thread on adjusting nut and core body. It is furthermore advantageous if the internal thread of the adjusting nut and the external thread of the core body are sawtooth thread, whereby high forces can be transmitted in the axial direction when the play is canceled.
  • a cylinder chamber is provided for a main piston whose discus-like trained working surfaces divide the cylinder chamber into two vertically superimposed work spaces with low lift, wherein in the main piston aelles-like trained working surfaces divide the cylinder chamber into two vertically superimposed work spaces with low lift, wherein in the main piston aelles-like trained working surfaces divide the cylinder chamber into two vertically superimposed work spaces with low lift, wherein in the main piston aelles-like trained working surfaces divide the cylinder chamber into two vertically superimposed work spaces with low lift, wherein in the main piston aelles-holding piston, of an axial arranged in the stroke direction ejector piston is interspersed, the piston rod is guided in alignment with the stroke axis in a working space.
  • the special discus-like shape of the main piston in conjunction with the integration of the counter-holding piston and the ejector piston in the main piston allows the Main piston compact perform with a low lifting height, whereby the foot piece receives a low height and the rigidity of the press frame is further improved.
  • channels for supplying fluid predetermined pressure from the hydraulic system are introduced into each working or cylinder space in the foot piece, so that each working space can be acted upon separately according to the required pressures with hydraulic fluid.
  • the head piece and the foot piece are held together by four box-shaped columns through which the tie rods are guided, one end of the tie bolt bolted directly into foot and the other end on the head piece by a clamping nut under tension is held.
  • the press frame according to the invention is of particular advantage that the head and foot piece of ductile iron and the columns and tie rods which consist of steel, the footrest rests without foundation by leveling shoes on the ground.
  • the Fig. 1 shows a perspective view of a hydraulically driven fineblanking press 1, the main piston 2 basically performs a lifting movement in the direction of lifting axis HU from bottom to top.
  • the press frame 3 of the press 1 comprises a head piece 4, a foot piece 5, box-shaped hollow columns 6 and tie rods 7 made of steel.
  • a parallel to the lifting axis HU extending blind hole 8 is introduced with internal thread 9, in which the foot piece 5 facing externally threaded end 10 of the tie rod 7 is screwed (see Fig. 2 ).
  • the tie rod 7 penetrates the hollow columns 6 axially, passes through a respectively arranged in the corner region of the cuboid head piece 4 bore 11 of the hollow columns 6 auflagernden top piece 4 passes, ends above a pocket-like receptacle 12 of the head piece 4 and is provided with a clamping nut 13 on the Head piece 4 facing the end 14 of the tie rod 7 axially secured so that the head piece 4, foot 5 and hollow columns 6 form an extremely stiff and massive press frame 3 low mass.
  • the Fig. 3 and 4 show the head piece 4 in perspective view and in section along the line BB Fig. 3 ,
  • a receiving space 15 for an integrally molded core body 16 with one of the underside US of the head piece 4 facing Hole bottom 17, one of the upper side OS of the head piece 4 facing tubular neck 18 and the hole bottom 17 associated flange 19th
  • the core body 16 has an external thread 23 in the form of a sawtooth.
  • the external thread 23 is in engagement with the internal thread 24 of an adjusting nut 25, which is axially supported on a vertical to the lifting axis HU wall portion 26 of the head piece 4.
  • the core body 16 can thus change its position relative to the main piston 2, whereby an upper installation space adjustment for different tools is possible.
  • the actuator for the adjusting nut 25 corresponds to the prior art EP 2 258 495 B1 and therefore need not be explained further. The difference is that the actuator consisting of sprocket 27, hollow pin chain 28, hydraulic motor 29 and parking brake 30 is arranged on the underside US of the head piece 4 and held by a lid 108 fixed to the underside US of the head piece 4 (see FIG Fig. 5 ).
  • a stripping / ejection cylinder 31 mounted coaxially to the stroke axis HU, which closes the formed in the core body 16 serrated cylinder chamber 32 pressure-tight by screwing.
  • the core body 16 and stripping / ejection cylinder 31 is secured by means of groove pieces 98 on the head piece 4 against rotation.
  • a cylinder space 33 is formed, which by a pressure-tight screwed lid 34 is completed and a double-acting wiper / ejection piston 35 receives.
  • the stripping / ejection piston 35 divides the cylinder space 33 into a first working space 36a assigned to one side of the stripping / ejecting piston 35 and a second working space 36b assigned to the other side of the stripping / ejecting piston 35.
  • the cover 34 has in the middle a supply opening 37 for the connection of a hydraulic line 38 of the hydraulic system 39 for acting on the first working space 36a with hydraulic fluid.
  • the second working space 36b is connected via a in the wall portion 40 of the stripping / ejection cylinder 31 parallel and perpendicular to the lifting axis HU formed channel 41 and a hydraulic line 38 to the hydraulic system 39 for applying hydraulic fluid predetermined pressure.
  • the stripping / ejection piston 35 is connected to a piston rod 42 which is guided on the lifting axis HU by a ring-toothed piston 43 guided in the serrated cylinder chamber 32 and carries an ejection plate 44 which is mounted on the perforated bottom 17 of the core body 16.
  • the ring-toothed piston 43 in the serrated cylinder chamber 32 is assigned a working chamber 45 which is connected to the hydraulic system 39 by a further channel 46 arranged in the wall region 40 of the stripping / ejection cylinder 31 via the hydraulic line 38 (see Fig. 7 ).
  • annular serrations 48 and thrust pin 49 are guided vertically displaceable in alignment with the stroke axis HU.
  • a piston plate 50 in a recess 51 of the core body 16, which encloses a centrally arranged, cylindrical disc-shaped support body 52.
  • the support body 52 has coaxial with the lifting axis HU Through holes 53 for the pressure pin 49, which are passed through the holes 53 of the support body 52.
  • a support plate 54 in a relation to the recess 51 stepped outwardly offset recess 55, wherein the support plate 54 is arranged plane-parallel to the piston plate 50.
  • the through holes 56 in which pressure pins 57a and 57b are guided, wherein the pressure pin 57a are assigned to the guided through the support body 52 pressure pin 49 and the pressure pin 57b the serration pin 48.
  • the pressure pins 57a and 57, the piston plate 50, the pressure pins 48 and 49, the ejection plate 44, the piston rod 42, the stripping / ejection piston 35 and the serrated piston 43 move synchronously upward, ie toward the head piece 4.
  • the hydraulic fluid in the working space 45 of the serrated piston 43 and in the working space 36 a of the stripping / ejection piston 35 is displaced.
  • the stripping / ejecting piston 35 is activated and the stripping process begins, ie the working space 36a is pressurized by hydraulic fluid.
  • the stripping / ejection piston 35 presses the ejection plate 44 and thus all the pressure pins 57 a, 57 b, 48, 49 and the piston plate 50 synchronously downwards, ie in the direction of foot piece 5.
  • the said pressure pin press on the pressure pin not shown in the tool, the Remove punched grid from the cutting punch.
  • the serrated piston 43 is parallel or delayed by pressurizing the working space 45 with hydraulic fluid and at a lower speed the Scraper / ejection piston 35 tracked.
  • FIG. 8 shows the upper side in the head piece 4 two biasing cylinder chambers 58a and 58b, which are arranged diametrically opposite the outer periphery of the stripping / ejection cylinder 31 and aligned parallel to the lifting axis HU and pressure-tightly closed by a cover 99.
  • a biasing piston 59 with piston rod 60 is guided in the biasing cylinder chambers 58a and 58b on a lifting axis H1, which is located vertically above the adjusting nut 25.
  • the piston rods 60 of the two biasing piston 59 are secured by a respective screw 61 to a positioning crosshead 62, which connects the piston rods 60 together.
  • the biasing cylinder chambers 58a and 58b are respectively connected to the hydraulic system 39 via channels 63 inserted into the header 4, so that the biasing piston 59 is acted upon by a corresponding pressure of the hydraulic fluid via a hydraulic line 38 and can perform a vertical movement, that is, an adjusting movement.
  • the pretensioning crosshead 62 with its foot 64 leads the adjusting force F into the stripping / ejecting cylinder 31 and thus into the core body 16 at the head end.
  • the core body 16 with its external thread 23 thus completes this adjusting movement and locks the internal thread 24 of the adjusting nut 25.
  • the Fig. 9 and 10 show the foot 5 in a perspective view and sectional view along the line EE.
  • a table top 73 is arranged, which carries the lower tool part, not further shown.
  • two opposite parallel to the stroke axis HU aligned cylinder chambers 100 are introduced in the foot piece 5, each receive a double-acting rapid traverse piston 102 and are closed with lid 101.
  • the rapid traction piston 102 has a piston rod 103 which is connected to a carrier 104 which is fixed to a side wall 105 of the table top 73.
  • the rapid traction piston 101 divides in the cylinder chamber 100 from a first and second working space 106a and 106b.
  • the working space 106a and the working space 106b is connected via a respective channel 107 introduced in the foot piece 5 with the hydraulic line 38 of the hydraulic system 39 for application of hydraulic fluid, so that it is possible to move the table top 73 in rapid traverse in the direction of the head piece 4 vertically proceed (see Fig. 10 ).
  • a master cylinder space 65 is formed in the foot piece 5, whose axis HA lies on the lifting axis HU of the fineblanking press 1 and accommodates the double-acting main piston 2.
  • the main piston 2 has a cylindrical shaft 67, which diskususionnartig perpendicular from its axis HA projecting work surfaces 68 a and 68 b, the master cylinder space 65 in two Divide work spaces 69 a and 69 b with low lifting height H, so that the foot 5 has a low height.
  • the work spaces 69a and 69b are each through a channel 70a and 70b via corresponding valves 109 (see Fig. 1 ) and connections and hydraulic lines 71 connected to the hydraulic system 39 (see Fig. 10 ).
  • the master cylinder space 65 and thus the working space 69 a is pressure-tightly closed by a cover 72.
  • Fig. 11 shows a further section through the foot piece 5 and the main piston 2 with its attachment to the table top 73rd
  • a In the main piston 2 aelleshaltezylinderraum 74 is formed, in which a counter-holding piston 75 and a discharge piston 76 is received, which is guided with its piston rod 77 centrally through the counter-holding piston 75, which ends with its foot-side end 78 in a working space 79 for the piston rod 77.
  • the counter-holding piston 75 divides a working space 80 in the cylinder space 74 of the main piston 2.
  • the working chamber 79 for the ejection piston 76 and the working chamber 80 for the counter-holding piston 75 are formed by in the shaft 67 perpendicular to the axis HA introduced separate channels 81a and 81b formed in the shaft 67 Verteil VogelsEnglishept 83 and channels 82a and 82b in the foot piece 5 with the hydraulic line 38 of Hydraulic system 39 connected.
  • Fig. 11 is referred to the arrangement and attachment of the table top 73 reference.
  • the table top 73 rests with its underside on impact on the shaft 67 of the main piston 2 and has a protruding cylindrically shaped Bottom portion 84, whose diameter is matched to the diameter of the shaft 67 of the main piston 2.
  • the bottom portion 84 of the table top 73 is provided with coaxial with the lifting axis HU arranged holes 85.
  • Counterhold pins 86 are guided in the bores 85 and are supported on a piston plate 89 which is arranged in a recess 88 above the bottom region 84 and which encloses a centrally arranged cylindrical disk-shaped support body 90.
  • the support body 90 has coaxial with the lifting axis HU through holes 91 for pressure pin 92, which are passed through the holes 91 of the support body 90.
  • a support plate 93 in a relation to the recess 88 stepwise outwardly offset recess 94, wherein the support plate 93 is arranged plane-parallel to the piston plate 89.
  • the support plate 93 there are through holes 95a and 95b, wherein in the through holes 95a pressure pin 96 are guided, which are associated with the Gegenhaltebolzen 86 and in the through holes 95b passed through the support body 90 pressure pin 92.
  • the pressure pins 87 and 92, the piston plate 89, the counter-holding pins 86, the ejection plate 76a, the piston rod 77, the ejector piston 76 and the counter-holding piston 75 move synchronously down during the cutting process.
  • the hydraulic fluid in the working space 79 of the ejector piston 76 and in the working space 80 of the counter-holding piston 75 is displaced.
  • the ejector piston 76 is activated and the ejection process of the cut into the cutting insert cutting part begins, ie, the working space 79 is pressurized with hydraulic fluid.
  • the ejection plate 76a presses all Pressure pin 86, 87 and 92 and the piston plate 89 synchronously upwards.
  • the said pressure pins 87 and 92 press on the pressure pins not shown in the tool, which eject the cutting part from the cutting opening of the cutting plate in the tool interior.
  • the counter-piston 75 is tracked by pressurizing the working space 80 with hydraulic fluid in parallel or with a time delay and at a lower speed.
  • the fine blanking press according to the invention forms by the structural unit of the core body 16 and stripping / ejection cylinder 31 in the head piece 4, the integration of Auswerfkolbens 76 in the counter-holding piston 75 within the main piston 2 and the special shape of the main piston 2 in the foot piece 5 an extremely rigid and compact Construction which makes it possible to store the press frame 3 without foundation only on leveling shoes 97 on the ground.
  • the improved stiffness of the fine blanking press according to the invention also has the advantage that a high-precision installation space adjustment can be ensured with a lower mass of the press with lower operating costs.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Punching Or Piercing (AREA)
  • Presses And Accessory Devices Thereof (AREA)
EP15002021.2A 2015-07-06 2015-07-06 Feinschneidpresse Active EP3115120B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
ES15002021T ES2701853T3 (es) 2015-07-06 2015-07-06 Prensa de corte fino
EP15002021.2A EP3115120B1 (de) 2015-07-06 2015-07-06 Feinschneidpresse
KR1020160084659A KR102333506B1 (ko) 2015-07-06 2016-07-05 정밀 블랭킹 프레스
CN201610524486.8A CN106335209B (zh) 2015-07-06 2016-07-05 精冲压力机
JP2016133068A JP6660832B2 (ja) 2015-07-06 2016-07-05 ファインブランキングプレス機
US15/203,547 US10081046B2 (en) 2015-07-06 2016-07-06 Precision blanking press

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP15002021.2A EP3115120B1 (de) 2015-07-06 2015-07-06 Feinschneidpresse

Publications (2)

Publication Number Publication Date
EP3115120A1 EP3115120A1 (de) 2017-01-11
EP3115120B1 true EP3115120B1 (de) 2018-09-05

Family

ID=53539441

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15002021.2A Active EP3115120B1 (de) 2015-07-06 2015-07-06 Feinschneidpresse

Country Status (6)

Country Link
US (1) US10081046B2 (zh)
EP (1) EP3115120B1 (zh)
JP (1) JP6660832B2 (zh)
KR (1) KR102333506B1 (zh)
CN (1) CN106335209B (zh)
ES (1) ES2701853T3 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108580629B (zh) * 2018-04-17 2021-06-08 台州市钟氏电机有限公司 一种具有定位功能的冲床
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IT202000004432A1 (it) 2020-03-04 2021-09-04 Ferrari & Carena S R L Metodo di montaggio di pressa per tranciatura fine da 1400 t
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CN106335209B (zh) 2019-06-21
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JP6660832B2 (ja) 2020-03-11
CN106335209A (zh) 2017-01-18
KR20170005770A (ko) 2017-01-16
EP3115120A1 (de) 2017-01-11
ES2701853T3 (es) 2019-02-26
US10081046B2 (en) 2018-09-25

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