WO2015132357A2 - Coulisseau porte-outil amélioré et son procédé de fabrication - Google Patents

Coulisseau porte-outil amélioré et son procédé de fabrication Download PDF

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Publication number
WO2015132357A2
WO2015132357A2 PCT/EP2015/054664 EP2015054664W WO2015132357A2 WO 2015132357 A2 WO2015132357 A2 WO 2015132357A2 EP 2015054664 W EP2015054664 W EP 2015054664W WO 2015132357 A2 WO2015132357 A2 WO 2015132357A2
Authority
WO
WIPO (PCT)
Prior art keywords
sliding
tool slide
sliding surface
grooves
slide
Prior art date
Application number
PCT/EP2015/054664
Other languages
German (de)
English (en)
Other versions
WO2015132357A3 (fr
Inventor
Markus Meyer
Original Assignee
Voestalpine Giesserei Linz Gmbh
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 Voestalpine Giesserei Linz Gmbh filed Critical Voestalpine Giesserei Linz Gmbh
Publication of WO2015132357A2 publication Critical patent/WO2015132357A2/fr
Publication of WO2015132357A3 publication Critical patent/WO2015132357A3/fr

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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
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/32—Perforating, i.e. punching holes in other articles of special shape
    • B21D28/325—Perforating, i.e. punching holes in other articles of special shape using cam or wedge mechanisms, e.g. aerial cams

Definitions

  • the invention relates to a tool slide and a method for its production.
  • Tool slides or - as they are also called - wedge drives are used in tools in metalworking, eg in forming presses. Associated with these wedge drives are usually facilities or tools that allow Stan ⁇ zen or otherwise deforming.
  • a conventional wedge drive has an upper guide member comprising a sliding ⁇ berelement and a slider guide element and a lower guide member comprising a driving element and vice versa. The wedge drives are moved by the slider guide element by a drive applying a generally vertical pressing force.
  • On the part of the driver element wedge drives are mounted in the tool or the press on a base plate on which the workpiece to be machined is placed directly or via a corresponding support device.
  • a wedge drive for redirecting a vertical pressing force in an angularly acting for the forming process force is known.
  • This wedge drive consists of a drive wedge, acts on the vertical force of a corre sponding ⁇ working press, and a slide wedge, which transmits the force in the horizontal.
  • the driver wedge and the slide wedge run either over a rounded cooperating region or, in another embodiment, over a roller.
  • a wedge press with a prism-shaped wedge guide is known, wherein the contact surfaces are roof-shaped or channel-like and wherein extending roof or gutter over the entire pressure receiving width of the wedge.
  • overhead wedge drives used in the body industry consist of a driver, a slider, and a slider receiver.
  • On the top of the slider recording acts a vertical force that pushes the slide ⁇ berfact down.
  • the driver is firmly anchored in the tool, so that when pressed on the slide holder of the anchored in the slide holder slide is pressed in a belie ⁇ bige direction outside the vertical direction.
  • the slider depends in his leadership movable in the slide holder.
  • the driver sits rigidly in the lower part and specifies the working direction of the slider.
  • the spring-loaded slider sets on the driver and is pushed by the continuing slide holder over the driver surface in the working direction.
  • a wedge drive is known, which is producible in egg ⁇ nem continuously industrial production process and should have long service life.
  • angle brackets are present, which are formed of bronze and the sliding blocks mounted in the angle of graphite verf ⁇ gene.
  • this wedge drive for deflecting a vertical pressing force with a driver, a slider and a slide holder is equipped , wherein the driver has a prism ⁇ leadership and the travel of the slider on the Trei ⁇ ber is shorter than the travel of the slider on the Schie ⁇ berfact and the ratio of travels to each ⁇ at least 1 to 1.5 and the angle between the travel distances are 50 ° to 70 °.
  • the driver element has a prismatic surface, wherein the flanks of the prismatic surface are formed sloping outwardly.
  • this wedge drive has forced return clamps on two opposite sides in respective grooves of the slide element and the driver element. In this way, in the case of a breakage of the slider element in its starting position retrieving spring element ensures a return of the slider element at spring break and thereby to avoid tearing out of screwed punching elements.
  • the slider element is attached to the slider guide member via the angle brackets and retaining screws and can be moved along the angle strips relative to the slider guide element.
  • the guide brackets engage in this form-fitting manner in the slider guide element, whereby the slide member depends on the guide guide elements on the slide guide element via this positive engagement.
  • a wedge drive in which the bronze material is to be reduced, the power transfer area is optimized and which has a stable slide bed area, wherein a slide bed, a slide wedge and a driver are present and wherein the ver ⁇ schieblichen coupling of the slider wedge in the slide bed at ⁇ least one bearing cam is present, with the bearing cam to ⁇ minimum passes through a bearing opening in a side wall of the slide bed from the outside and engages in a recess in the slider wedge, the slider wedge on the bearings ⁇ blocks and the bearing cam on a the bearing opening limiting wall is supported.
  • These impurities may be, for example, baubles when punching aluminum sheets, baubles and chips when punching sheets with increased strength values, and baubles and tinder pieces when punching sheets in hot forming lines. These particles have high strength or high hardness abrasive properties. In conjunction with the lubricants used on the sliding surfaces, these impurities can result in aggressive grinding pastes, which lead to increased wear of the sliding surfaces.
  • the object of the invention is to reduce the wear behavior of slideways in press tools under extreme conditions (e.g., stamping aluminum, higher strength sheets, and hot stamping sheets), e.g. to improve tool slides or wedge drives and to increase the service life of the sliding guides.
  • extreme conditions e.g., stamping aluminum, higher strength sheets, and hot stamping sheets
  • the invention relates to the geometric design of the sliding elements. These are equipped for a targeted removal of the abrasive dirt with appropriate geometry, in particular grooves for the removal of dirt.
  • the front side of the moving sliding element is equipped, for example, with a radius ⁇ 0.2 mm. Due to the lack ⁇ At run-chamfer or the lack of large radius at the standard sliding member-edge penetration ( "slip in") is difficult or prevented from contamination.
  • the front edge of this sliding member can be zusharm ⁇ Lich pronounced oblique or wedge-shaped. This beveling of the supply slider edge causes additionally a ⁇ Ver deflection of the dirt particles to the outside.
  • Volume of the clamping groove depends on the length of the Sys ⁇ temhubes and the length of the sliding element.
  • the distance of the chip grooves depends on the length of the system stroke.
  • the first additional chip groove is located approximately at 1/5 to 1/4 of the system stroke. It assumes the radio ⁇ tion of the first post-cleaning in the event that dirt particles from entering despite the scraping between the sliding guide. At about 2/3 to 3/4, as well as in about the length of the Systemhubes more flutes are arranged. They serve as additional Nachquelss for very small particles of dirt, which could not be Saw ⁇ performs the scraping and the first clamping grooves.
  • the clamping grooves are distributed on the purpose ge ⁇ entire length of the sliding element in a uniform distance.
  • the distance of the chip grooves is about 3/4 of the sliding stroke. Changed distances of the chip groove arrangement are possible.
  • the removal of chips from the effective range can be supported by longitudinal grooves.
  • the ends of the chip grooves open into these longitudinal grooves. Due to the oblique arrangement of the chip grooves, the dirt particles are conveyed by the sliding movement in these longitudinal grooves and thus outside the effective range of the sliding guide.
  • the size of the sliding surface, which is destroyed by the chip grooves, should not be too large, as this reduces the effective wing area.
  • the chip grooves can be straight, oblique, arrow-shaped or also in the form of another contour (eg fan-shaped).
  • the shape of the chip grooves directly influences the discharge behavior of the dirt particles in the sliding guide: In the case of chip grooves with a straight arrangement, the contaminants are indeed displaced from the direct action region of the sliding guide into the grooves, but the straight arrangement does not convey the impurities laterally out of the guide.
  • Chip grooves with oblique, arrow-shaped or contoured (for example, fan-shaped) arrangement promote removal of the impurities to the outside.
  • the maximum design mounting holes sliding elements can play a similarity ⁇ Liche function as the special clamping grooves by a corresponding geometric design.
  • ⁇ Liche function the special clamping grooves by a corresponding geometric design.
  • the shape of the chip grooves is derived by the shape of the contaminants.
  • the depth of the chip grooves must be such that the contaminants collecting in the chip groove will find sufficient space without jamming.
  • the scope for the impurities must be given even if the pollutants to move three-dimensionally through the relative movement and the resulting dynamics.
  • the depth of the chip grooves is for example about 1 mm.
  • the width of the chip grooves must also absorb the contaminants in full length, without this jammed in the chip groove.
  • the width of the chip groove is for example between 2 mm and 5 mm.
  • the transition of the sliding surface in which it vertically arrange ⁇ te jacket surface the clamping groove is provided with a small edge ⁇ break, for example, 0.2 mm radius.
  • the edge break / radius must under no circumstances be made too large, because if too large a radius or too large bevel in the course of sliding the impurities between the two sliding surfaces are pulled, and thereby can cause the undesirable damage.
  • the physical vapor phase deposition is suitable as a coating for this purpose.
  • Divorce or physical vapor deposition PVD
  • PVD physical vapor deposition
  • the deposited layers provide a high hardness and durability, so that usually metals are evaporated and converted with reactive gases into oxides or carbides and de Nitri ⁇ be incorporated into the surface.
  • the invention is exemplified erläu ⁇ tert reference to a drawing. It shows:
  • Figure 1 a wedge drive in a decomposed representation with the
  • Figure 2 a further embodiment of the wedge slide after
  • Claim 1 with sacrificial and stand-removable sliding elements
  • Figure 3 a first embodiment of a sliding strip with grooves for a dirt removal
  • Figure 4 a further embodiment of the slide bar
  • Figure 5 a further embodiment of a wide inventively designed sliding strip with Schmutzab USAnu ⁇ th;
  • Figure 6 another embodiment of an inventively designed wide slide bar
  • Figure 7 an inventively designed sliding strip in one
  • Figure 8 an enlarged detail of the slide bar after
  • Figure 9 the slide bar of Figure 7 in a plan view.
  • FIG. 10 an enlarged detail corresponding to the line
  • a slide 1 or a slide assembly 1 consists of a slide bed 2, a slide member 3 slidably attached thereto and in the case shown, and the driver 4.
  • the slide member 3 is lifted by the driver 4, wherein the dri ⁇ about 4 usually tool half is arranged in a first (in the illustrated case the bottom) while the sliding part 3 via the slide bed 2 at a corresponding second tool half is arranged (not shown).
  • slide between ⁇ berbett 2 and slide member 3 is usually a spring, for example a gas spring, arranged which returns carries the slider member after lifting from the driver back into the starting position.
  • the sliding surfaces 5, 6; 8, 9 are in this case formed as stationary sliding surfaces 6, 8 and sacrificial sliding surfaces 5, 9.
  • the stationary sliding surfaces 6, 8 are arranged according to the intended inclined plane and thereby usually worked out by spa ⁇ nende processing of the casting and po ⁇ profiled and surface hardened by suitable methods.
  • the usual Rockwell hardnesses for such surfaces are from 56 HRC to 60 HRC.
  • the sacrificial sliding surfaces 5, 9 can not be realized in the cast steel material of the slide, and it is also undesirable for victim sliding surfaces in the component to be replaced directly at the wear limit of the entire component. Therefore, such Schogleit vom 5, 9 are formed as Plat ⁇ th.
  • the sacrificial sliding surfaces 5, 9 are formed as bronze plates. Such bronze plates may have holes to improve the sliding, which are filled with inserts of graphite impregnated with oil, so that in the sliding ⁇ processes oil escapes from the holes and serves as Gleitmit ⁇ tel between the standing and Kochgleit Structure.
  • plates made of oil-impregnated sintered material can be used.
  • Such sintering ⁇ plates consist of a steel base plate with an iron-based sintered layer as a lubricating layer.
  • the porous surface of the porous layer is impregnated to improve the sliding behavior with ⁇ oil which exits during operation of the Sin ⁇ ter für and serves as a lubricant between the stand and Kochgleit Structure.
  • a surface which is directed towards the interior of a forming tool, located adjacent as possible in a sliding surface 5, 9 to a tool-side edge of at least one clamping groove 15 or ⁇ clamping nut 15 is at a tool-side face.
  • the chip groove 15 or flute 15 can still be arranged in front of an attachment opening 16 adjacent to the edge 14.
  • the flute 15 or chip groove 15 can be transverse to Leksach ⁇ se 17 inclined to the longitudinal axis 17 (for example ge ⁇ tilted by 60 °) or arrow-like be formed on both sides inclined from the longitudinal axis.
  • 15 further chip grooves 18 may be arranged in comparable or other geometric embodiment in addition to the first, the edge 14 adjacent chip groove.
  • the front side of the moving sliding element or the leading edge 14 of the moved sliding element formed with a radius ⁇ 0.2 mm to the sliding side surface. Due to the lack of the usual starting chamfer or the lack of the usual large standard radius of a Gleitelementkante the ingress of contaminants is difficult or prevented.
  • the front edge 14 of the sliding element 5, 9 can be formed wedge-shaped or with bevels 19.
  • This chamfer 19 of Gleitelementkante 14 causes in addition a displacement of the dirt particles to the outside.
  • the chip grooves 15, 18 arranged in the course of the slide element 5, 9 can also open into the screw hole 16, for example, whereby the screw hole 16 is additionally formed for catching dirt, or excessively removed in the screw hole 16 to collect contaminations to the outside become.
  • the moving body does not lift off during operation due to the system, so that the sliding guide is moved only to the extent of the system lift (for example in the case of lower part slides).
  • the sliding guide is thereby partially exposed.
  • an arrangement of the chip grooves only in the front region of the sliding element, at most in the extension of the stroke length is useful and necessary, so that, for example, three chip grooves (Fig. 3, 4) are arranged.
  • the moving body lifts systemically in operation, whereby the sliding ⁇ leadership is temporarily exposed completely. It is advantageous to use chip grooves over the entire length of the track. Provide telements, as well as over the entire arrangement or extent of the sliding element dirt can reach this. The amount of chip grooves depends on the length of the system stroke and the length of the sliding element.
  • the distance of the chip grooves depends on the length of the system.
  • the first chip groove 15 is arranged at about 1/5 to 1/4 of the system stroke. It takes over the function of the first post-cleaning, in the event that dirt particles despite the Abstreif ⁇ edge 14, and the small radius of the wiper edge 14, get between the slide. At about 2/3 to 3/4, as well as in about the length of the system hub more flutes 18 and chip grooves 18 can be arranged. They serve as additional Nachalismskinn for very small particles of dirt, which could not be Saw ⁇ performs the scraping and the first clamping groove.
  • one of the chip grooves 15, 18 can also be connected to a bore 16 or a screw hole 16.
  • the clamping grooves 15, 18 are distributed on the purpose ge ⁇ entire length of the sliding member in a uniform or non-uniform spacing. It has been found that a spacing of the chip grooves 15, 18 with approximately 3/4 of the sliding ⁇ stroke makes sense.
  • a plurality of straight or angled chip grooves 18 be present, wherein the chip grooves 18 may be additionally interrupted by extending along the longitudinal axis 17 longitudinal grooves 20. This allows a profiling similar to a car tire with, for example, three rows depending on the width of the sliding plate 21 of sliding blocks 22, wherein the sliding blocks 22 are separated from the flutes 18 or chip grooves 18 against each other.
  • the number of grooves should not be too large, or should be in proportion to the total area, which provides sufficient bearing force of the sliding surfaces or slide blocks 22 causes.
  • the chip grooves 15, 18 can be straight, oblique, arrow-shaped or else in the form of other contours (for example fan-shaped).
  • the shape of the chip grooves 15, 18 has a direct influence on the discharge behavior of the dirt particles in the sliding guide.
  • Chip grooves with an oblique, arrow-shaped, or contoured (e.g., fan-shaped) arrangement ( Figure 6) promote removal of the contaminants to the outside.
  • the discharge can be promoted by suitable lubricants which are applied at intervals to the sliding surfaces or from the oil-soaked graphite inserts 28.
  • the victim's side may instead be made from sintered bronze with hard ⁇ fabric inserts.
  • screw holes 16 are integrated in the chip removal, whether by outwardly pointing chip grooves 15 or solely by the presence of the screw holes 16, is of crucial importance. interpret that the radius between the sliding surface and the lateral surface of the bore 16 is kept small, for example, 0.2 mm, to develop a stripping effect.
  • the shape of the chip grooves 15, 18 is determined by the shape of the impurities.
  • the depth of the chip grooves 15, 18 must be designed so that the accumulating in the chip groove impurities find enough space without jamming.
  • the clearance for the impurities must also be given if the impurities move three-dimensionally due to the relative movement and the resulting dynamics.
  • An advantageous depth of the chip grooves be ⁇ contributes, for example, about 1 mm.
  • the width of the chip grooves 15, 18 must also be dimensioned so that impurities are also safely taken up in full length, without these jamming in the chip groove.
  • the width of the clamping groove is, for example Zvi ⁇ rule 2 mm and 5 mm.
  • the transition of the sliding surface in which it vertically arrange ⁇ te jacket surface of the clamping groove is provided with a small edge ⁇ break, for example, 0.2 mm radius.
  • the edge breakage or radius must under no circumstances be made too large, because if too large a radius or too large bevel in the course of the sliding movement, the impurities between the two sliding surfaces can be pulled and thus the unwanted damage can occur.
  • Standgleit perennials 6, 8 vorteilhaf ⁇ ingly with a hardness over normal hardening process also increasing layer may be formed.
  • the Standgleit perennials are formed by means of a PVD process with hard material ⁇ layers, the hard coatings on the Metal, which forms the slide assemblies, are formed, or formed thereon by means of appropriate PVD methods and / or infiltrated into the surface.
  • Suitable hard material layers include titanium nitride, titanium carbonitride, titanium aluminum nitride, but also chromium nitride, chromium vanadium nitride, chromium aluminum nitride and other common hard material layers.
  • FIG. 2 In a further advantageous embodiment (FIG. 2; the same components are provided with the same reference numerals) are, in particular to the corresponding coating to he ⁇ facilitate the Standgleit vomen as shells or plates 11, 12 are formed, which act on the corresponding slide members 3, 4 be screwed on.
  • the Standgleit perennialschalen 11, 12 are formed for example of steel, which in geeigne ⁇ th PVD method such as arc evaporation, infiltrated with a hard material layer, or coated or both.
  • the choice of material or the cast steel can be designed entirely according to its essential function, namely the safe power transmission, without the corresponding surfaces of a cure , which always intervenes in the structure of the metal, must be subjected.
  • both surfaces of the shells 11, 12 may be coated accordingly, so that at the end of the life of a surface, the shell can be rotated and reused.
  • the difference in hardness of the make layer to the sacrificial layer should be greater than 2,000 HV.
  • the inventors have thus recognized that the hardening of the stationary sliding surfaces and in particular the hardening of the stationary sliding surfaces beyond the normal measure, in particular by the choice of other casting materials does not lead to the goal, but only a hard coating or hard material infiltration in the casting material or on separate shells in the situation to shift the wear on the sacrificial slip layer.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cutting Tools, Boring Holders, And Turrets (AREA)
  • Bearings For Parts Moving Linearly (AREA)
  • Sliding-Contact Bearings (AREA)

Abstract

La présente invention concerne un coulisseau porte-outil, réalisé sous la forme d'un chasse-clavette, qui comprend au moins deux composants (2, 3; 3, 4) qui peuvent être montés en mobilité coulissante l'un contre l'autre. Les composants (2, 3; 3, 4) sont montés coulissants l'un contre l'autre sur des surfaces de coulissement, une surface de coulissement est réalisée sous la forme d'une surface de coulissement fixe plus résistante à l'usure et la surface de coulissement correspondante sous la forme d'une surface de coulissement sacrificielle (5, 9) plus sujette à l'usure, notamment une surface de coulissement sacrificielle (5, 9) remplaçable. Au moins une gorge à copeaux (15) ou une rainure d'évacuation de copeaux (15) est disposée dans une surface de coulissement (6, 8; 5, 9), si possible à côté d'un bord avant (14) côté outil, et la surface de coulissement fixe est une surface de coulissement qui est infiltrée par une substance dure ou qui est revêtue d'une substance dure. L'invention concerne également un procédé de fabrication d'un coulisseau porte-outil, notamment d'un coulisseau porte-outil qui est réalisé sous la forme d'un chasse-clavette, et qui possède des surfaces de coulissement (5, 6, 8, 9, 11, 12) entre les parties (2, 3, 4) du sous-ensemble coulisseau. L'une des surfaces de coulissement est à chaque fois réalisée sous la forme d'une surface de coulissement fixe et l'une des surfaces de coulissement correspondantes sous la forme d'une surface de coulissement sacrificielle, notamment sous la forme d'une surface de coulissement sacrificielle remplaçable. Les surfaces de coulissement fixes sont formées directement sur la partie du coulisseau et sont infiltrées par une substance dure ou revêtues d'une couche de substance dure, ou alors les surfaces de coulissement fixes sont réalisées sous la forme de coques ou de plaques et les coques ou les plaques sont infiltrées par une substance dure ou revêtues d'une substance dure.
PCT/EP2015/054664 2014-03-06 2015-03-05 Coulisseau porte-outil amélioré et son procédé de fabrication WO2015132357A2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102014102988 2014-03-06
DE102014102988.7 2014-03-06
DE102015103114.0 2015-03-04
DE102015103114.0A DE102015103114A1 (de) 2014-03-06 2015-03-04 Verbesserter Werkzeugschieber und Verfahren zu seiner Herstellung

Publications (2)

Publication Number Publication Date
WO2015132357A2 true WO2015132357A2 (fr) 2015-09-11
WO2015132357A3 WO2015132357A3 (fr) 2015-10-29

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DE (1) DE102015103114A1 (fr)
WO (1) WO2015132357A2 (fr)

Cited By (1)

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CN110121411A (zh) * 2017-02-22 2019-08-13 菲博罗有限公司 楔式驱动器以及制造优化导引的楔式驱动器的方法

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Publication number Priority date Publication date Assignee Title
CN106001247B (zh) * 2016-05-26 2017-11-14 奇瑞汽车股份有限公司 一种可切换式悬吊斜楔机构及其使用方法

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DE2329324B2 (de) 1973-06-08 1975-11-27 Langenstein & Schemann Ag, 8630 Coburg Keilpresse mit einer Einrichtung zur Verhinderung unerwünschter Bewegungen des Keiles
DE2439217A1 (de) 1974-08-16 1976-03-04 Langenstein & Schemann Ag Keipresse mit einer keilfuehrung
DE2640318A1 (de) 1976-08-09 1978-03-16 Weingarten Ag Maschf Keiltrieb zur umleitung einer vertikalen presskraft in eine fuer den umformvorgang hierzu winklig wirkende kraft
EP0484588B1 (fr) 1990-11-09 1995-03-22 UMIX Co., Ltd. Matrice avec coulisseau
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Publication number Priority date Publication date Assignee Title
CN110121411A (zh) * 2017-02-22 2019-08-13 菲博罗有限公司 楔式驱动器以及制造优化导引的楔式驱动器的方法
KR20190120165A (ko) * 2017-02-22 2019-10-23 피브로 게엠베하 쐐기형 드라이브, 및 최적화된 가이드를 구비하는 쐐기형 드라이브의 제조 방법
KR102406841B1 (ko) 2017-02-22 2022-06-10 피브로 게엠베하 쐐기형 드라이브, 및 최적화된 가이드를 구비하는 쐐기형 드라이브의 제조 방법
US11364530B2 (en) * 2017-02-22 2022-06-21 Fibro Gmbh Wedge drive and method for producing a wedge drive having optimized guidance

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WO2015132357A3 (fr) 2015-10-29
DE102015103114A1 (de) 2015-09-10

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