EP0200775A1 - Dispositif d'estampage. - Google Patents

Dispositif d'estampage.

Info

Publication number
EP0200775A1
EP0200775A1 EP85905793A EP85905793A EP0200775A1 EP 0200775 A1 EP0200775 A1 EP 0200775A1 EP 85905793 A EP85905793 A EP 85905793A EP 85905793 A EP85905793 A EP 85905793A EP 0200775 A1 EP0200775 A1 EP 0200775A1
Authority
EP
European Patent Office
Prior art keywords
punching
workpiece
die
swivel arm
swivel
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
Application number
EP85905793A
Other languages
German (de)
English (en)
Other versions
EP0200775B1 (fr
Inventor
Helmut Thurner
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.)
Bayerisches Druckgusswerk Thurner KG
Original Assignee
Bayerisches Druckgusswerk Thurner KG
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 Bayerisches Druckgusswerk Thurner KG filed Critical Bayerisches Druckgusswerk Thurner KG
Priority to AT85905793T priority Critical patent/ATE31645T1/de
Publication of EP0200775A1 publication Critical patent/EP0200775A1/fr
Application granted granted Critical
Publication of EP0200775B1 publication Critical patent/EP0200775B1/fr
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S83/00—Cutting
    • Y10S83/914—Flash trimming
    • 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
    • Y10T83/2066—By fluid current
    • 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
    • Y10T83/2122—By ejector within a hollow cutter
    • 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
    • Y10T83/2198—Tiltable or withdrawable support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4604—Work feed functions as tool support
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/4607—With rotary work-carrier

Definitions

  • the invention relates to a punching device for automatic deburring. , of injection molded or cast parts with the features of the preamble of claim 1.
  • a device for removing workpieces from a printing or spraying machine in which a punching tool, consisting of a punching die and a counterform, is arranged on a machine frame, around which casting or spraying is carried out For this purpose, one of the two cutting tool halves is slidably attached to the machine frame to open the punching tool.
  • a workpiece take-up device is provided for introducing the workpiece into the opened punching tool, which device can be pivoted clockwise about a pivot axis fixed to the frame Has a swivel arm, at the end of which a workpiece holder is provided which can accommodate the shaping to be deburred.
  • the take-over device consists of a carrier mounted on a horizontal drive shaft, on which - offset by 90 ° in each case - four cylinder-piston units are arranged, on the piston rods of which a transfer arm suitable for receiving a workpiece is arranged.
  • the transfer movement thus takes place in a vertical plane, although a purely circular movement for receiving and transferring the workpieces into the punching mold is not sufficient, but rather a relatively complicated movement sequence must be controlled, which on the one hand consists of a multiple linear movement of the Cylinder piston units, on the other hand consists of a displacement movement of the carrier superimposed on the rotary movement on the drive shaft.
  • the known device is not only relatively complicated in construction, but the arrangement of the workpieces on relatively thin, long piston rods also makes it difficult to transfer heavy shapes through the transfer device. This is all the more so since, in the prior art, the moldings are attached to the piston rods of the transfer device by sprue bars, the rigidity of which, in particular when hot, is not sufficient to withstand high bending moments and thus to carry heavier shapes. Finally, in the device according to the prior art it is necessary to provide the deburring machine directly next to the casting mold, which does not always have to be advantageous for reasons of internal space.
  • the invention has for its object to provide a punching device suitable for deburring even relatively massive moldings, which is of simple and robust construction and whose workpiece take-over device with simple movement sequences, an exact feeding of the workpiece to the punch and a separation of the workpiece deburred ' shape! depending on the punched waste parts in a simple way.
  • the invention first advantageously makes use of the feature that the workpiece holder for transferring the molding into the punching position is formed by the punching die, which is rigid at the end at a constant distance from the pivot axis of the swivel arm is fastened, and therefore runs through a simple circular path.
  • Such a sequence of movements is relatively easy to control; due to the rigid attachment to the swivel arm at a constant distance from the swivel axis, the entire swivel device can be made relatively stiff in itself, so that even very heavy cast parts such as engine blocks and the like. dg1. can be easily transferred from one position to another.
  • the swivel movement By providing the swivel movement, it is also possible to have different processes run in different swivel positions, namely in a first swivel position the workpiece is fed into the punch die, in a second swivel position the actual punching process and in a third swivel position the ejection of the punched burrs in a waste collector.
  • the main plane of the workpiece holder in the first cycle position, in which the workpiece is fed runs obliquely upwards, since lateral feeding of the workpiece is then possible, and at the same time, due to the weight of the workpiece, it can be safely deposited in the stamping die without additional holding forces is guaranteed.
  • the punching process should be carried out by a punching movement directed from top to bottom, because then the relatively high acceleration peaks can be introduced into the substructure of the machine frame relatively easily.
  • the matrix In the third cycle position (ejection position), it is advantageous if the matrix is pivoted so that its surface points obliquely downward, because the waste can then fall more or less independently into the waste 1 collector.
  • the die can not only be re-loaded in the first cycle position, but at the same time - optionally by an in the ejection device arranged in the counter shape - the molding can be released from the mold and automatically released into a workpiece collector when the workpiece holder is pivoted into the second cycle position.
  • the collecting device is advantageously designed as a slide which is approximately horizontal in the first cycle position and which, in the second cycle position, points obliquely downwards towards the workpiece collector.
  • the shaping is carried along by the counter mold which lifts upwards from the punching die and remains clamped there until the punch die from the third .
  • Bar position 1 has moved back to the first bar position.
  • a workpiece ejection device takes effect, which removes the mold from the press fit. Presses the counter mold onto the chute underneath, after which - as already described above - when the punching die is pivoted, it reaches the second cycle position of the molding in the workpiece collector.
  • the swivel arm is bent on one side approximately U-shaped or crescent-shaped, the deflection running in the swivel plane.
  • a support bearing is provided, on which the punch die with its bottom side at second pivot adjusting ung (operating position) rests .
  • the swivel arm overlaps the support bearing laterally.
  • a drive cylinder for example a hydraulic cylinder
  • the piston rod of which is connected to an extension of the swivel arm which projects beyond the swivel axis.
  • the connection is made by a knee joint, the extension in the second cycle position should point in the direction of the punching stroke and the knee joint is preferably stretched in this cycle position, so that a certain locking of the punching / pivoting position can be achieved in that the piston in the drive cylinder is held in its dead center position.
  • a swivel arm is attached to the swivel arm on the swivel axis Gear provided, in the teeth of a toothed rack driven by a further drive cylinder engages peripherally. If the dead center lock is released in the first drive cylinder, the rack arm can pivot the swivel arm from the second to the first or third cycle position.
  • the parts interacting with the stamping die must be arranged on a circular path due to the circular movement of the punching die, it is advantageous for the space to be used the side of the pivoting-lie ⁇ a pivot angle of about 50 ° and between constricting half space between the 'first and second clock position - provide a pivot angle of about 75 ° of the first and third clock position. Due to the relatively large swivel angle between the first and third cycle positions, the surface of the punch die points downward strongly in the third cycle position, so that the stamped waste parts can easily fall out of the die.
  • the workpiece feed device is preferably designed as a conveyor stamp which can be pivoted linearly against the pivot axis, the end face of which carries the workpiece to be fed, the displacement movement of the stamp including an angle of approximately 50 ° with the direction of the stamping stroke, so that the workpiece is flat is inserted into the punch die 0 in the first cycle position.
  • a spray device for cleaning the surface of the punch die in the third cycle position of stuck chip chips and the like.
  • a spray device can be provided, with which a lubricant is sprayed onto the surface under pressure, which at the same time achieves a certain pre-lubrication effect for the next stamping operation.
  • FIG. 1 shows a schematic illustration of the punching device in the first cycle position (receiving position)
  • FIG. 2 shows a schematic illustration of the punching device in the second cycle position (punching position)
  • Fig. 3 is a schematic illustration of the direction in Stanzvor ⁇ third clock position (ejection ⁇ position).
  • the punching device 10 for the automatic deburring of injection molded or cast parts (molded parts 12, 12 ') consists in the main of a machine frame 14 on which two cutting tool halves cooperating with one another (punch die 16, counter mold 18) are arranged, the counter mold 18 is displaceable along vertically standing, fixed guide struts 20 in order to open the punching tool.
  • a transfer device designated overall by 24, is pivotally pivotably mounted on the machine frame 14, which generally consists of one at the end of a Swivel arm 26 attached workpiece holder for receiving the blank 12 to be deburred.
  • the workpiece holder is formed by the punch die 16, which can therefore be placed together and in synchronism with the swivel arm 26 in three different cycle positions, the punch die 16 being offset from the swivel axis .
  • 22 basically takes a constant distance and the main matrix plane is always parallel to the pivot axis 22.
  • the surface 28 of the punch die 16 points against a workpiece feed device 30, which is designed as a conveying punch 32 directed against the pivot axis 22, • on its end face 34 carries the molding 12 to be supplied.
  • Waste 1 is collected 38, which consists, for example, of a conveyor belt 40 and a waste basket 42.
  • the surface 28 of the stamping die 16 extends obliquely upwards in the first cycle position, horizontally in the second cycle position and obliquely downwards in the third cycle position, the entire pivoting movement of the swivel arm 26 and the punching matrix 16 attached to it plays mainly in the embodiment shown in the drawings in the left from the pivot axis 22 half space, so that the feed device 30 and the waste collector 38 are also arranged to the left of or on the machine frame 14.
  • a collecting device 46 which is designed as a slide that runs approximately horizontally in the first cycle position and slants downward in the second cycle position, the lower end 48 of which in the second cycle position against a basket formed workpiece collector 50 is such that the data stored in the first clock position on the collection device 46 moldings 12 slip off 'in the second clock position in • direction of the arrow 52 into the workpiece collector 50th
  • an ejection device in the form of a stamp 58 is provided, which is displaceable in the counter-shape 18 in the punching direction 56 and whose lower end face 60 acts on and clamps out the clamped workpiece 12 ' expresses the counterform.
  • the central perpendicular 62 of the punch die 16 runs through the center of the pivot axis 22, so that the punching direction 56 and the central perpendicular 62 are aligned with one another in the second cycle position.
  • the swivel arm 26 is bent in a U-shape between the swivel axis 22 and the punch die 16 on one side in the swivel plane (paper plane of the drawing figures), so that the upper part of the swivel arm 26 provided with the punch die 16 and the collecting device 46 is pivoted inward can move into the second cycle position between the guide struts 20 (four in the exemplary embodiment).
  • the underside of the stamping die 16 or the inner contour 64 forming the upper region of the cantilever arm 26 rests on a correspondingly beveled surface 66 of a support bearing 68 fixed to the frame, the bevel being pivoted in when the swivel arm 26 is pivoted in sliding on the inner contour 64 * allowed on the slanted surface 66th
  • the contact between the inner contour 64 and the surface 66 is preferably flat.
  • the swivel arm 26 is provided with an extension 70 beyond the swivel axis 22, which is articulated at its extension end 72 to the drive end 74 of the piston rod 76 of a first drive cylinder 78, the piston rod 76 and the extension 70 form the legs of a knee joint 80.
  • the knee joint 80 is stretched; H. the longitudinal axes of the extension 70 and the drive cylinder 78 are aligned with the punching direction 56 and the center perpendicular 62.
  • a gear 82 is arranged, which is non-rotatably coupled to the pivot arm 26.
  • a toothed rack 86 meshes with the toothing 84 and is driven by a second drive cylinder 88.
  • the displacement movement of the rack 86 is suitable, for example, in connection with an incrementally operating linear encoder for the exact determination of the position of the swivel arm in the three cycle positions, since the entire device - as already expressed several times above - is to be controlled, for example, by a programmable logic controller.
  • a spray device is designated by 90, which sprays a coolant / lubricant under pressure on the downward-facing surface 28 of the punching die 16 under pressure and thus ensures that even the last residues of the waste chips are removed thoroughly from the punching die become.
  • the stamping die 16 with its surface 28, faces the feed device 30, from the conveying ram (end face 34) of the forming 12 of which is placed flat in the surface 28.
  • the punch die 16 is equipped for a subsequent punching process.
  • the stamp 58 expresses the formation 12 'deburred in the previous stamping process from the counter-mold 18 and deposits it on the collecting device 46. «
  • the counter mold 18 is pressed down against the surface 28 of the die matrix 16, the molding 12 being deburred. Since the catch device 46 points obliquely downward in this cycle position, the previously placed molding 12 'reaches the workpiece collector 50. The counterform 18 lifts upwards from the surface 28 of the punch die, taking the now deburred blank 12 with it 16 from, so that the Stanz ⁇ die 16 for swiveling in 'the released d itte clock position.
  • the spray device 90 is activated and, as it were, washes the last chips out of the punch die 16.
  • the device is then moved into the first cycle position, in which - as described above - it is equipped with a new molding and the already deburred molding is placed on the collecting device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Amplifiers (AREA)
  • Press Drives And Press Lines (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

Un outil d'estampage comprend une matrice d'estampage (16) et un contre-moule (18), de même qu'une machine (24) de transport de pièces à usiner, agencés dans le bâti (14) d'un dispositif d'estampage utilisé pour ébarber automatiquement des pièces injectées ou coulées. La machine (24) de transport de pièces à usiner pivote en cadence autour d'un pivot (22) fixé au bâti, et est pourvue d'un porte-pièces à l'extrémité d'un bras pivotant (26) pour recevoir la pièce moulée (12) à ébarber. Afin de rendre possible l'ébarbage de pièces moulées relativement massives, elle a une construction robuste, et des mouvements simples du dispositif porte-pièce permettent d'amener avec précision des pièces à la presse à estamper et d'éloigner les pièces ébarbées des pièces découpées. Le porte-pièces de transport des pièces moulées (12) jusqu'à la position d'estampage est formé d'une moitié d'outil (matrice de découpage 16)) fixée à l'extrémité du bras pivotant (26) à une distance constante du pivot (22) et dont le plan principal (surface 28) est parallèle au pivot (22). Dans un premier temps, la matrice (16) est tournée vers un dispositif (30) d'amenée de pièces à usiner, dans un deuxième temps elle est parallèle et opposée au contre-moule (18), et dans un troisième temps elle est tournée vers un collecteur (38) de déchets.
EP85905793A 1984-10-26 1985-10-25 Dispositif d'estampage Expired EP0200775B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85905793T ATE31645T1 (de) 1984-10-26 1985-10-25 Stanzvorrichtung.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3439316 1984-10-26
DE19843439316 DE3439316A1 (de) 1984-10-26 1984-10-26 Stanzvorrichtung

Publications (2)

Publication Number Publication Date
EP0200775A1 true EP0200775A1 (fr) 1986-11-12
EP0200775B1 EP0200775B1 (fr) 1988-01-07

Family

ID=6248873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85905793A Expired EP0200775B1 (fr) 1984-10-26 1985-10-25 Dispositif d'estampage

Country Status (7)

Country Link
US (1) US4665785A (fr)
EP (1) EP0200775B1 (fr)
JP (1) JPS61103659A (fr)
AU (1) AU5192486A (fr)
DE (1) DE3439316A1 (fr)
FR (1) FR2619033B3 (fr)
WO (1) WO1986002584A1 (fr)

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CN118492152A (zh) * 2024-07-17 2024-08-16 溧阳市力士汽车配件制造有限公司 一种汽车冲压件冲压定位机构

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CN102133630B (zh) * 2011-03-02 2013-01-09 连云港杰瑞模具技术有限公司 空气锤式压铸溢流边敲边装置
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DE202014008037U1 (de) * 2014-10-10 2014-11-03 Tobias Flaig Vorrichtung zum Brikettieren von Materialien
CN105414314B (zh) * 2015-12-25 2017-02-01 东莞市本润机器人科技股份有限公司 一种冲压装置及其冲压方法
JP6342944B2 (ja) * 2016-04-28 2018-06-13 ファナック株式会社 プレス装置
CN105798277A (zh) * 2016-05-16 2016-07-27 上海皮尔博格有色零部件有限公司 铸件缓存台的限位装置
JP6564442B2 (ja) 2017-11-07 2019-08-21 ファナック株式会社 プレス装置
CN112008540B (zh) * 2020-09-09 2022-05-10 泗县东方塑料有限责任公司 一种塑料制品加工生产用修边装置
JP2022101871A (ja) * 2020-12-25 2022-07-07 Ｄｇｓｈａｐｅ株式会社 切削加工機
CN119077063B (zh) * 2024-09-25 2025-12-05 湖北德沃管业有限公司 一种金属衬塑管加工用自清洁式去毛边装置

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CN118492152A (zh) * 2024-07-17 2024-08-16 溧阳市力士汽车配件制造有限公司 一种汽车冲压件冲压定位机构

Also Published As

Publication number Publication date
JPH0152104B2 (fr) 1989-11-07
DE3439316C2 (fr) 1993-03-18
FR2619033A3 (fr) 1989-02-10
WO1986002584A1 (fr) 1986-05-09
EP0200775B1 (fr) 1988-01-07
JPS61103659A (ja) 1986-05-22
AU5192486A (en) 1986-05-15
FR2619033B3 (fr) 1989-06-16
DE3439316A1 (de) 1986-04-30
US4665785A (en) 1987-05-19

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