EP3718657B1 - Dispositif d'usinage de composants tubulaires - Google Patents

Dispositif d'usinage de composants tubulaires Download PDF

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Publication number
EP3718657B1
EP3718657B1 EP20160403.0A EP20160403A EP3718657B1 EP 3718657 B1 EP3718657 B1 EP 3718657B1 EP 20160403 A EP20160403 A EP 20160403A EP 3718657 B1 EP3718657 B1 EP 3718657B1
Authority
EP
European Patent Office
Prior art keywords
clamping
machining
base body
tubular workpieces
workpieces according
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
EP20160403.0A
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German (de)
English (en)
Other versions
EP3718657A1 (fr
Inventor
Manuel Burger
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.)
Familie Burger GbR
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Familie Burger GbR
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Publication date
Application filed by Familie Burger GbR filed Critical Familie Burger GbR
Publication of EP3718657A1 publication Critical patent/EP3718657A1/fr
Application granted granted Critical
Publication of EP3718657B1 publication Critical patent/EP3718657B1/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
    • B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
    • 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
    • B21D37/08—Dies with different parts for several steps in a process

Definitions

  • the invention relates to a device for processing tubular components, in particular for the production of belt tensioner tubes.
  • High strength is required, particularly in the area of the tulip formed around the back of the subsequent explosive device and designed to absorb the recoil of the explosive device, in which the tube wall thickness is thinned by expansion of the tube.
  • the pipe wall thickness has recently been thickened in the entire tulip area.
  • this thickening over a relatively long distance, as well as the subsequent widening and the trimming, foreheads, etc. required thereafter, requires many processing stations. In many cases even more than 32 processing and testing stations are required to manufacture a belt tensioner tube.
  • belt tensioner tubes are either manufactured in many individual stations with manual linking, or they are manufactured in large-scale sub-systems with relatively high cycle times. Since almost every processing station always requires a massive clamp to hold the tubular components, high clamping forces are also required, which in individual systems with several processing stations would lead to press rams with a large moving mass and a punch width that can no longer be realized. The high masses to be moved alone would stand in the way of a fast machining process. If, on the other hand, the clamping forces are generated individually in individual stations, this leads to considerable plant sizes, which then have to be divided into sub-plants.
  • a generic device for machining tubular workpieces is known. This has a base body with a plurality of processing stations arranged next to one another.
  • the basic body consists of a lower part serving as a support for the workpieces and an upper part designed as a press ram, between which the workpieces are clamped during processing.
  • relatively large masses have to be moved in order to simultaneously clamp a plurality of workpieces.
  • the object of the invention is to provide a device for processing tubular components which is of compact design and enables a large number of different processing steps with short cycle times.
  • the clamping device designed for clamping the workpieces during processing contains several clamping units arranged at the processing stations of the base body with movable clamping elements arranged on the base body so that they can be displaced, which can be displaced by a clamping bar arranged on the base body so that it can move in its longitudinal direction via spring-loaded clamping levers.
  • the central drive of the movable clamping elements via the clamping bar, which can be displaced in the longitudinal direction of the base body makes it possible for a large number of consecutive processing and testing stations to be accommodated in a very small space. Repetitive work movements in the various stations can be combined mechanically via a common drive and implemented with an extremely small distance between stations.
  • the drive of the clamping device can be offset in relation to the processing units while making optimal use of space.
  • the workpiece clamping forces of the individual clamping units by appropriate selection of the Clamping springs or by simply adjusting their preload paths can be adapted and changed to the respective processing steps. In this way, any workpiece clamping forces from 1 to 30 t can be generated.
  • the clamping units can have fixed clamping elements assigned to the movable clamping elements. This allows the workpieces to be clamped between a fixed and a movable clamping element.
  • the resilient clamping levers can advantageously be mounted on the base body such that they can rotate about axes. They can rest against the movable clamping elements with their upper lever arms and can engage in receptacles on the clamping bar with their lower lever arms.
  • the receptacles can be arranged on the clamping bar in an adjustable manner or have exchangeable inserts for receiving the lower lever arms of the clamping levers.
  • the resilient clamping levers can be made in one piece from spring steel or another resilient material.
  • the resilient clamping levers can also consist of several parts, in which case the upper lever arm can be made of steel, for example, and the lower lever arm can be made of spring steel.
  • the clamping bar can be guided in a displaceable manner via guide rails on a front side of the base part and can be moved by a drive motor via an eccentric drive.
  • differently configured processing units are expediently arranged with a ram or carriage for driving tools that is displaceably arranged on the base body.
  • the ram or slide can be driven by motor-driven shafts via an eccentric drive with a drive eccentric or a cam drive with a cam disk.
  • the shafts are expediently rotatable via pivot bearings in bearing bores in the base body stored and driven by drive motors.
  • the shafts can be driven separately or by a common drive motor via intermeshing gears and a gearbox.
  • FIG 1 a base body 1 of a device according to the invention for processing tubular components, in particular for the production of belt tensioner tubes, is shown.
  • a plurality of processing stations 2 arranged next to one another for carrying out successive processing steps on tubular components are provided on the base body 1, which is designed here as a longitudinal beam in box construction.
  • differently configured processing units 3 are arranged for carrying out various processing steps, such as stamping, thickening, widening, calibrating and bending processes.
  • a clamping device with a plurality of clamping units 4, which are arranged at the processing stations 2 and are explained in more detail below, for holding the tubular components during processing.
  • FIG. 1 For a simplified representation are in figure 1 only individual processing units 3 and individual clamping units 4 are shown. Depending on the needs and processing requirements, several processing units 3 and clamping units 4, which may also have different designs, can be attached to the base body 1. Also arranged on the base body 1 is a transfer device, not shown here, through which the tubular workpieces can be transported from one processing station 2 to the next.
  • the transfer device can consist, for example, of one or more grippers which can be moved on one or more guide rails parallel to the base body 1 .
  • the base body 1 is designed as a horizontally arranged longitudinal member. However, the base body 1 can also be a vertically arranged longitudinal beam with a plurality of processing stations 2 arranged one above the other.
  • a plurality of rams or carriages 7 arranged next to one another and displaceable in the vertical direction are arranged on a front side 5 of the box-shaped base body 1, which is supported on support rails 6 and designed as a hollow beam, for actuating the processing units 3.
  • Punching tools, expanding mandrels or other forming and machining tools, for example, can be moved and driven via the displaceably guided ram or carriage 7 .
  • the ram or slide 7 can be driven by motor-driven shafts 8 via an eccentric drive with a drive eccentric 9 embodied, for example, as an eccentric drive pin, or a cam drive with a cam disc 10 .
  • the shafts 8 are rotatably mounted in corresponding bearing bores 11 of the base body 1 and can be driven by drive motors 12 .
  • FIG 2 a cross section through the base body 1 in the area of a vertically displaceable ram or carriage 7 is shown.
  • the shaft 8 which is provided with an eccentric drive pin 9, is rotatably mounted via pivot bearings 13 and 14 in a front wall 15 and a rear wall 16 of the base body 1.
  • An expanding mandrel 17 for expanding the downwardly bent end of a tubular component 18 can be vertically displaced by means of the ram or carriage 7 that can be displaced by means of the shaft 8 .
  • a gear wheel 20 is fastened to its rear end 19, which protrudes from the rear wall 16 of the base body 1.
  • FIG. 1 shows, on an upper side 22 of the base body 1 at the processing stations 2 there are several clamping units 4 arranged next to one another, each with a movable clamping element 23 arranged to be displaceable on the base body 1 and a fixed clamping element 24 arranged in a stationary manner on the base body 1.
  • the movable clamping elements 23 are designed as displaceable clamping jaws and the fixed clamping elements 24 are designed as stationary clamping jaws.
  • the movable clamping elements 23 are displaceable by means of a clamping bar 25 arranged to be movable on the base body 1 in its longitudinal direction via resilient clamping levers 26 and 27 .
  • the horizontal clamping bar 25 is slidably guided on the front side 5 of the box-shaped base part 5 via horizontal guide rails 28 and can be moved back and forth by a drive motor 29 via an eccentric drive 30 .
  • a drive motor 29 via an eccentric drive 30 .
  • FIG 1 only the right part of the clamping bar 25 is shown.
  • On the left side of the base body 1, another part of the clamping bar 25 can be slidably guided via horizontal guide rails 28.
  • the movable clamping elements 23 which are arranged on the upper side 22 of the base body 1 so as to be displaceable in its longitudinal direction can be displaced by two differently designed clamping levers 26 and 27 .
  • the resilient clamping levers 26 and 27 are articulated on the base body 1 such that they can rotate about axes 31 and 32 .
  • the clamping levers 26 and 27 rest with their upper lever arms 33 and 34 on the movable clamping elements 23 and engage with their lower lever arms 35 and 36 in cassette-shaped receptacles 37 on the upper side of the clamping bar 25 .
  • the preload paths can be changed particularly easily and the clamping forces can thus be adapted to the respective processing requirements.
  • the clamping lever 26 is produced as a one-piece clamping lever made of spring steel or another resilient material.
  • the clamping lever 27 consists On the other hand, it consists of two parts, the upper lever arm 34 being made of steel, for example, and the lower lever arm 36 being made of spring steel. Other configurations of the resilient clamping levers 26 and 27 are also possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Multi-Process Working Machines And Systems (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Jigs For Machine Tools (AREA)

Claims (12)

  1. Dispositif d'usinage de pièces tubulaires, qui contient un corps de base (1) avec plusieurs postes d'usinage (2) disposés côte à côte et un système de serrage pour la fixation par serrage des pièces au cours de l'usinage, caractérisé en ce que le système de serrage contient plusieurs unités de serrage (4) disposées sur les postes d'usinage (2) du corps de base (1), avec des éléments de serrage mobiles (23) disposés de manière à pouvoir être coulissés sur le corps de base (1), qui peuvent être coulissés par une barre de serrage (25) disposée de manière mobile sur le corps de base (1) dans son sens longitudinal par l'intermédiaire de leviers de serrage (26, 27) sur ressorts.
  2. Dispositif d'usinage de pièces tubulaires selon la revendication 1, caractérisé en ce que les unités de serrage (4) présentent des éléments de serrage fixes (24) associés aux éléments de serrage mobiles (23).
  3. Dispositif d'usinage de pièces tubulaires selon la revendication 1 ou 2, caractérisé en ce que les leviers de serrage (26, 27) sur ressorts sont montés sur le corps de base (1) de manière à pouvoir tourner autour d'axes (31, 32).
  4. Dispositif d'usinage de pièces tubulaires selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les leviers de serrage (26, 27) sur ressorts reposent par leurs bras de levier supérieurs (33, 34) sur les éléments de serrage mobiles (23) et viennent en prise par leurs bras de levier inférieurs (35, 36) avec des logements (37) sur la barre de serrage (25).
  5. Dispositif d'usinage de pièces tubulaires selon la revendication 4, caractérisé en ce que les logements (37) sont disposés de manière ajustable sur la barre de serrage (25) ou présentent des inserts (38) pour loger les bras de levier inférieurs (35, 36) des leviers de serrage (35).
  6. Dispositif d'usinage de pièces tubulaires selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les leviers de serrage (26, 27) sur ressorts sont fabriqués en une partie à partir d'acier à ressort.
  7. Dispositif d'usinage de pièces tubulaires selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les leviers de serrage (26, 27) sur ressorts sont constitués de plusieurs parties.
  8. Dispositif d'usinage de pièces tubulaires selon l'une quelconque des revendications 1 à 7, caractérisé en ce que la barre de serrage (25) est guidée sur un côté avant (5) de la partie de base (1) de manière à pouvoir être coulissée par l'intermédiaire de rails de guidage (28) et peut être déplacée par un moteur d'entraînement (29) par l'intermédiaire d'un entraînement à excentrique (30).
  9. Dispositif d'usinage de pièces tubulaires selon l'une quelconque des revendications 1 à 8, caractérisé en ce que des unités d'usinage (3) avec un poussoir ou un chariot (7) disposé de manière à pouvoir être coulissé sur le corps de base (1) pour entraîner des outils sont disposées sur les postes d'usinage (2) du corps de base (1).
  10. Dispositif d'usinage de pièces tubulaires selon la revendication 9, caractérisé en ce que les poussoirs ou chariots (7) sont entraînés par des arbres (8) à entraînement motorisé par l'intermédiaire d'un entraînement à excentrique avec des excentriques d'entraînement (9) ou par une sortie à came avec une came (10).
  11. Dispositif d'usinage de pièces tubulaires selon la revendication 10, caractérisé en ce que les arbres (8) sont montés de manière à pouvoir tourner par l'intermédiaire de paliers rotatifs (13, 14) dans des alésages de montage (11) du corps de base (1) et sont entraînés par l'intermédiaire de moteurs d'entraînement (12) .
  12. Dispositif d'usinage de pièces tubulaires selon la revendication 10 ou 11, caractérisé en ce que les arbres (8) sont entraînés par un moteur d'entraînement (12) commun séparément ou par l'intermédiaire de roues dentées (20) s'engrenant entre elles et une transmission (21).
EP20160403.0A 2019-03-08 2020-03-02 Dispositif d'usinage de composants tubulaires Active EP3718657B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019105943.7A DE102019105943A1 (de) 2019-03-08 2019-03-08 Vorrichtung zur Bearbeitung von rohrförmigen Bauteilen

Publications (2)

Publication Number Publication Date
EP3718657A1 EP3718657A1 (fr) 2020-10-07
EP3718657B1 true EP3718657B1 (fr) 2022-02-16

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ID=69743133

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Application Number Title Priority Date Filing Date
EP20160403.0A Active EP3718657B1 (fr) 2019-03-08 2020-03-02 Dispositif d'usinage de composants tubulaires

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EP (1) EP3718657B1 (fr)
DE (1) DE102019105943A1 (fr)
ES (1) ES2907928T3 (fr)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5130045Y2 (fr) * 1971-02-27 1976-07-29
JP3617840B1 (ja) * 2004-03-26 2005-02-09 株式会社三泉 ハードディスク用キャリッジのスエッジホールの内周面加工方法と、それに使用されるバックアップ具及びクランプ具と、ハードディスク用キャリッジのスエッジホールの内周面加工装置
DE102005057658B4 (de) * 2005-12-01 2008-06-26 Manuel Burger Vorrichtung zur Mehrfachbearbeitung
DE102007004165A1 (de) * 2007-01-22 2008-07-24 Harald Garth Schlittenaggregat
DE202009002356U1 (de) * 2009-02-20 2010-07-15 Otto Bihler Handels-Beteiligungs-Gmbh Arbeitsmaschine, insbesondere Draht- oder Bandbiegemaschine
CN107263147A (zh) * 2017-06-16 2017-10-20 无锡振华机械有限公司 可自动下料的杆/管状工件夹具
CN109304632B (zh) * 2017-07-26 2019-10-08 福士瑞精密工业(郑州)有限公司 夹持装置

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Publication number Publication date
ES2907928T3 (es) 2022-04-27
EP3718657A1 (fr) 2020-10-07
DE102019105943A1 (de) 2020-09-10

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