EP0505392B1 - Werkstückspannstation für paket-keilzinkenfräsmaschinen - Google Patents

Werkstückspannstation für paket-keilzinkenfräsmaschinen Download PDF

Info

Publication number
EP0505392B1
EP0505392B1 EP91900160A EP91900160A EP0505392B1 EP 0505392 B1 EP0505392 B1 EP 0505392B1 EP 91900160 A EP91900160 A EP 91900160A EP 91900160 A EP91900160 A EP 91900160A EP 0505392 B1 EP0505392 B1 EP 0505392B1
Authority
EP
European Patent Office
Prior art keywords
workpiece clamping
station according
clamping station
transport rollers
workpiece
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP91900160A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0505392A1 (de
Inventor
Adolf Fröhlich
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.)
Dimter GmbH
Original Assignee
Dimter 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 Dimter GmbH filed Critical Dimter GmbH
Publication of EP0505392A1 publication Critical patent/EP0505392A1/de
Application granted granted Critical
Publication of EP0505392B1 publication Critical patent/EP0505392B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B27B25/02—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed and pressure rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C5/00—Machines designed for producing special profiles or shaped work, e.g. by rotary cutters; Equipment therefor
    • B27C5/02—Machines with table
    • B27C5/06—Arrangements for clamping or feeding work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27F—DOVETAILED WORK; TENONS; SLOTTING MACHINES FOR WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES
    • B27F1/00—Dovetailed work; Tenons; Making tongues or grooves; Groove- and- tongue jointed work; Finger- joints
    • B27F1/16—Making finger joints, i.e. joints having tapers in the opposite direction to those of dovetail joints

Definitions

  • the invention relates to a workpiece clamping station according to the preamble of patent claim 1.
  • the invention has for its object to provide such a workpiece clamping station.
  • This design of the workpiece clamping station forms a table, the top of which consists of alternately arranged transport rollers and support webs. These support webs form a grate.
  • the transport rollers are adjustable in height educated. It is advantageously possible to set the transport rollers and the support webs relative to one another for the transport and frontal alignment of the woods such that the apex plane of the transport rollers lies above the level of the upper edges of the support webs. The package is only picked up by the transport rollers.
  • the coefficient of friction of the circumference of the transport rollers is advantageously greater than that of the upper edges of the support webs.
  • This coefficient of friction can be optimally selected for the transport of the package and for its frontal alignment in that the transport rollers have a friction lining.
  • a relative adjustment is carried out in such a way that the wood of the package rests on the upper edges of the support webs for lateral alignment and clamping.
  • the upper edges of the support webs have a low coefficient of friction, so that the frictional resistance against lateral alignment is minimal.
  • the stable and stably mounted support webs, which carry the package, also form the abutment for vertical clamping, so that a required vertical clamping force is absorbed by the fixed web grate.
  • the invention provides a workpiece clamping station with which it is possible to meet opposite physical conditions, namely to enable high and low frictional engagement in succession at the same location. A high vertical clamping force is still possible.
  • the transport rollers are advantageously driven by a common drive.
  • one supporting web is arranged in front of a transport roller.
  • a transport roller which can pick up the package bumplessly when the package is fed.
  • a bar is advantageously arranged, which increases the guide surface towards the milling cutter and thus the support surface during milling.
  • the top edges are chamfered with advantage.
  • the support webs are designed to be stationary and the transport rollers are mounted so that they can be raised and lowered.
  • the axis ends of the transport rollers are advantageously connected to hydraulic or pneumatic pistons.
  • the transport rollers are designed as solid rollers with stub axles supported on pneumatic cylinder pistons. In this embodiment, the transport rollers can be raised pneumatically and lowered again as a result of their weight by releasing the pressure.
  • the vertical clamping device has a pressure plate which is mounted on two synchronously driven spindle pairs which are arranged at a distance from one another in the conveying direction. This assembly ensures that the Pressure plate aligned exactly parallel to the package.
  • the pressure plate is particularly advantageously mounted on two cross bars, the ends of which are in drive connection with the spindles.
  • the spindles are in turn connected to a central hydraulic motor, via whose hydraulic pressure the clamping force can be adjusted.
  • the opening stroke of the pressure plate is controlled by a timer.
  • the function of this timer is set depending on the amount of the package, so that the work cycle can be optimized.
  • the width of the printing plate of the package width i.e. the width of the table formed by the transport rollers and support webs is fitted so that the package can be optimally stretched in the width direction.
  • the length of the pressure plate is expediently adapted to the length of the longest piece of wood to be processed.
  • the maximum length of the pressure plate is determined by the length of the table formed by the support webs and transport rollers. The length is dimensioned with particular advantage in such a way that ends of individual longer pieces of wood are spanned.
  • An elastic spring plate is advantageously mounted on the pressure side of the pressure plate, on the projecting one Spring elements are formed.
  • These spring elements can be designed as parabolic spring elements, which are arranged in rows offset from one another in order to enable a tight resilient contact pressure on the top of the package.
  • a side clamping plate for optimum side alignment and clamping, a side clamping plate, the length of which corresponds to the length of the table, is arranged on both sides of the table formed by the transport rollers and support webs.
  • This configuration of the side clamping plate advantageously compresses the package over the entire length.
  • These clamping plates can be pressed against the package in a hydraulically floating manner with particular advantage. The package no longer has to be shifted by the entire difference between package width and channel width, since the clamping plates are pressed against the package in a floating manner.
  • These side clamping plates are particularly advantageously provided with cutouts in the stroke of the cross bars of the vertical clamping device, so that the vertical clamping device can carry out its work unhindered when the side clamping device is applied.
  • a workpiece clamping station 1 is shown in FIG. Coming from the right, workpiece packages are introduced into this workpiece clamping station 1 and these are provided with finger joints by a horizontal milling cutter. The center of the horizontal milling path is shown schematically at 4. In the illustration in FIG. 1, the horizontal milling cutter moves perpendicular to the plane of the drawing.
  • Milled finger joints are shown schematically at 22 on a short piece of wood.
  • a table 19 is provided in the workpiece clamping station 1.
  • This table 19 has alternating transport rollers 2 and support webs 3.
  • the alternating arrangement of these components is such that in the conveying direction towards the milling cutter 4 there is a supporting web 3 in front of a transport roller 2.
  • the support webs 3 are fixed in the machine frame and form a grate.
  • the transport rollers 2 are designed as solid rollers, the ends of which bear stub axles 13. These stub axles 13 can be raised and lowered on a schematically shown hydraulic cylinder piston 14. With this pneumatic cylinder piston 14, the transport rollers 2 can be raised in such a way that their apex lines lie over the upper edges 6 of the support webs 3. As shown schematically in Figure 1, everyone is whose apex lines lie over the upper edges 6 of the support webs 3. As shown schematically in FIG. 1, each circumference of a transport roller 2 is provided with a friction lining 5.
  • a chain drive 24 is schematically shown for all transport rollers 2.
  • the chain 25 of this chain drive 24 runs over the sprockets 25 shown in FIG. 2, which are mounted on the stub axles 13.
  • the transport rollers 2 provided with the friction lining 5 extend over the plane of the upper edges 6 of the support webs 3, a package fed from the right can be transported by means of these rollers against a device (not shown) for the frontal alignment of the package.
  • the transport rollers 2 are lowered in such a way that the package, not shown, is supported on the upper edges 6 of the support webs 3.
  • These upper edges 6 are polished bright and form a minimal frictional resistance.
  • the side clamping plates 20 shown in FIG. 2 are now moved together in a floating manner and laterally align the package supported on the support webs 3. After this lateral alignment has taken place, the vertical tension is carried out.
  • the vertical clamping device has a substantially rectangular clamping plate 9.
  • the width of this clamping plate 9 is dimensioned such that it extends essentially over the width of the table 19.
  • the maximum length of this clamping plate 9 is determined by the length of the table 19.
  • the length of the clamping plate 9 is in particular dimensioned such that that when clamped, it can act on the longest wood in the package at both ends.
  • two pairs of spindles 15, which are arranged at a distance from one another and flank the table 19, are provided. These pairs of spindles 15, 16 are in drive connection with a central hydraulic motor and are driven synchronously by the latter.
  • the clamping plate 9 of the vertical clamping device 8 is mounted on two parallel cross bars 10, the ends of which are in drive connection with a pair of spindles 15, 16 each.
  • the mounting of the clamping plate 9 and the drive of the spindles 16 are such that the clamping plate 9 can be moved exactly parallel to the support surface of the table 19.
  • An elastic spring plate 17 is arranged on the pressure side of the pressure plate 9. On this elastic spring plate 17 spring elements 18 are formed, which in particular have the shape of parabolic spring elements. These spring elements 18 are mounted on this spring plate 17 in rows offset from one another. As shown, recesses 21 are provided in the side clamping plates 20, into which the cross bars 10 can enter when the vertical clamping device 8 is lowered.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Jigs For Machine Tools (AREA)
EP91900160A 1989-12-15 1990-12-14 Werkstückspannstation für paket-keilzinkenfräsmaschinen Expired - Lifetime EP0505392B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3941976A DE3941976A1 (de) 1989-12-15 1989-12-15 Werkstueckspannstation fuer paket-keilzinkenfraesmaschinen
DE3941976 1989-12-15
PCT/DE1990/000977 WO1991008876A1 (de) 1989-12-15 1990-12-14 Serkstückspannstation für paket-keilzinkenfräsmaschinen

Publications (2)

Publication Number Publication Date
EP0505392A1 EP0505392A1 (de) 1992-09-30
EP0505392B1 true EP0505392B1 (de) 1994-08-10

Family

ID=6395829

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900160A Expired - Lifetime EP0505392B1 (de) 1989-12-15 1990-12-14 Werkstückspannstation für paket-keilzinkenfräsmaschinen

Country Status (3)

Country Link
EP (1) EP0505392B1 (enrdf_load_stackoverflow)
DE (2) DE3941976A1 (enrdf_load_stackoverflow)
WO (1) WO1991008876A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109605531A (zh) * 2019-01-08 2019-04-12 江山市美轩门业有限公司 一种木门加工定型装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4232530C2 (de) * 1992-09-29 2002-07-11 Esterer Ag Maschf Richttisch
DE102007022988B4 (de) * 2007-05-15 2011-06-01 jöma GmbH Transportvorrichtung für eine Keilverzinkungsanlage
CN107398962A (zh) * 2017-09-01 2017-11-28 张宇锋 一种木材加工用的铣边机
CN113478586A (zh) * 2021-07-07 2021-10-08 刘周生 一种用于木材自动加工的承载装置以及方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE867300C (de) * 1951-05-08 1953-02-16 Franz Boehm Zusatzgeraet fuer Dickenhobelmaschinen od. dgl.
DE2135822A1 (de) * 1970-09-01 1972-03-02 Continental Machines Trenn- oder Abschneidsäge
DE2523034C3 (de) * 1975-05-24 1978-05-24 F. Meyer & Schwabedissen Gmbh & Co Kg, 4900 Herford Vorrichtung zum automatischen Buntaufteilen einer Platte
DE2545274C3 (de) * 1975-10-09 1980-02-14 Sauter Maschinenbau Kg, 7519 Zaisenhausen Anlage zur Herstellung von Keilzinken an Enden von Holzwerkstücken für die Holzlängsverleimung
US4095634A (en) * 1977-03-30 1978-06-20 Svenska A.B. Elphiac Plant for finger-jointing wood-boards
DE2822659A1 (de) * 1978-05-24 1979-11-29 Alfred Ullrich Berger Fraeseinrichtung fuer mikrozinken
DE3616922C2 (de) * 1986-05-20 1995-10-19 Papenmeier Gmbh Mischtechnik Portalsäge zum Quer- und Längsschneiden von Platten-Material
DE8811402U1 (de) * 1988-09-09 1988-10-20 Andy Kolb Machinery Trading Co. GmbH, 5239 Hirtscheid Hobelmaschine zum Hobeln von Holz o.dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109605531A (zh) * 2019-01-08 2019-04-12 江山市美轩门业有限公司 一种木门加工定型装置

Also Published As

Publication number Publication date
EP0505392A1 (de) 1992-09-30
DE3941976A1 (de) 1991-07-25
WO1991008876A1 (de) 1991-06-27
DE59006792D1 (de) 1994-09-15
DE3941976C2 (enrdf_load_stackoverflow) 1991-10-24

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