WO2018137825A1 - Perceuse et utilisation d'une perceuse - Google Patents

Perceuse et utilisation d'une perceuse Download PDF

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Publication number
WO2018137825A1
WO2018137825A1 PCT/EP2017/081842 EP2017081842W WO2018137825A1 WO 2018137825 A1 WO2018137825 A1 WO 2018137825A1 EP 2017081842 W EP2017081842 W EP 2017081842W WO 2018137825 A1 WO2018137825 A1 WO 2018137825A1
Authority
WO
WIPO (PCT)
Prior art keywords
spindle
drilling
rotary drive
drilling machine
adjusting nut
Prior art date
Application number
PCT/EP2017/081842
Other languages
German (de)
English (en)
Inventor
Achim LÜBBERING
Original Assignee
Johannes Lübbering 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 Johannes Lübbering Gmbh filed Critical Johannes Lübbering Gmbh
Publication of WO2018137825A1 publication Critical patent/WO2018137825A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
    • B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
    • B25F5/001—Gearings, speed selectors, clutches or the like specially adapted for rotary tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22—Feeding members carrying tools or work
    • B23Q5/32—Feeding working-spindles
    • B23Q5/326—Feeding working-spindles screw-operated

Definitions

  • Generic drills in particular designed as hand drills with appropriately designed for manual handling handles or housing lugs, with a rotatable driving a ansitzenden or attachable and replaceable drilling tool formed spindle are well known in the art. There are various designs from private to industrial use.
  • EP 2 754 531 B1 which is cited as a technologically sophisticated solution, discloses such an integrated gear arrangement which brings both the rotational moment of a main drive and a feed or axial adjusting moment of an adjusting drive to the drill spindle and In the context of this integrated transmission arrangement, ensures a suitable decoupling, since this known and technologically sophisticated solution works by means of two motors.
  • both the rotational driving of the spindle for the drilling operation, as well as the axial adjustment of the spindle for the feed operation by the individual and jointly provided electric motor of the drill which is provided in a drill housing and acts on the transmission means that this then act on the spindle by means of the adjusting nut for the feed operation and at the same time by means of the rotary drive wheel for the rotary drive in the drilling operation.
  • the transmission means are in cooperation with the rotary drive and the adjusting nut designed or constructed so that in the (common) drilling and Voschub congress the spindle from the rotary drive on the one hand and the adjusting nut on the other hand acting rotation speeds are different; this then leads to the spindle also moving axially during the rotary drive.
  • a particularly advantageous and preferred development of the invention provides that the spindle are associated with return means which, usually after the completion of a drilling operation, reverse the spindle feed and, to enable a further drilling operation, move the spindle back to an original position.
  • return means which, usually after the completion of a drilling operation, reverse the spindle feed and, to enable a further drilling operation, move the spindle back to an original position.
  • the return means have means for rotatably setting the adjusting nut, in other words, the adjustment nut (is fixed relative to the surrounding drill housing) and so far then the torque input by the rotary drive wheel can cause the pushing back in the shortest possible time.
  • the adjustment nut is fixed relative to the surrounding drill housing
  • This difference in turn, which determines the adjustment speed, is influenced by the transmission ratio of the described gear pairs, so that in particular also for a respective (pre-) configuration by appropriate selection of suitable sprockets, the feed behavior (which then according to the selected sprockets and thus realized gear ratios constant is) can be preset in a drilling machine or equipment.
  • the Drehanthebsritzel is driven by the electric motor, in particular the installation conditions in a hand drill housing show it to be advantageous that the electric motor or its output shaft in a (more preferably right) angle to Spindeierstreckung are, so that the electric motor then suitable in a (eg suitable for the realization of a housing handle) housing approach can be added.
  • a further significant advantage of the (common) electric motor according to the invention lies in the possibility provided for further development of assigning electrical detection means to this electric motor which can detect a current electrical operating parameter of the drill or the electric motor (or in particular also detect a change in this electrical operating parameter). It is particularly preferred in this context, by means of the further forming detection means to detect a currently recorded motor current (eg armature current) of the electric motor and determine the change; For example, a (sudden) drop of such a motor current would be an indication that in a drilling and feed operation the drilling tool has penetrated the workpiece to be drilled (since, accordingly, the opposing force offered by the workpiece decreases significantly).
  • a currently recorded motor current eg armature current
  • This parameter which is simply to be detected in the control circuit of the electric motor, now makes it possible to easily adapt the operating modes of the drilling machine by means of the operating mode means advantageously downstream of the detection means, such that the backward movement is initiated in response to the detected (armature) current drop, additionally or alternatively a lubricant supply or Schmierstoffbeetzschlagung the drilling tool is disabled - not only this is no longer required after successful drilling of the work piece concerned and saves according to lubricant, is also, especially in factories with a variety of parallel operated drills, an impairment of adjacent operating operators by ( unnecessary) lubricant leakage reduced.
  • Another exemplary advantage of this embodied in the form of the detection means and Bohrmodusstoff development of the invention is about the possibility to provide an adaptation to changed operating conditions within a drilling operation.
  • the detection means with evaluation means which, for example, are assigned to the control electronics and provided with additional signal transmission or electronic communication means, such as a web server functionality, which enables the use of the electric motor according to the invention
  • evaluation means which, for example, are assigned to the control electronics and provided with additional signal transmission or electronic communication means, such as a web server functionality, which enables the use of the electric motor according to the invention
  • Use parameter acquisition for quality assurance and evaluation purposes For example, it has proved to be preferable according to the invention to evaluate the magnitude and course of the motor current over a drilling cycle in order to be able to draw conclusions about a bore quality and / or a tool wear. For example, as part of a variable-speed motor control, wear on the drilling tool would be reflected in a higher armature current, so that corresponding data can then be recorded and evaluated for these quality assurance and maintenance aspects.
  • the present invention is particularly preferred for making wells in an aircraft assembly context, not least because of the advantages set forth in practical operation and in an industrial manufacturing environment, the present invention is not limited to this use. Rather, the present invention is advantageous for any (preferably manually manageable) drill, which constructive simplicity with reliable and a long service life enabling operating characteristics in the combined drilling and feed operation of a drill spindle to realize.
  • FIG. 1 shows a perspective view of the drilling machine according to the invention according to a first embodiment
  • FIG. 4 shows a detailed view of the transmission means of the first exemplary embodiment, insofar as a side view of the representation of FIG. 3;
  • the handle portion 12 of the housing is designed to receive a schematically illustrated, held on a printed circuit board 22 control electronics, which in turn is connected via electrical or electronic interfaces 24 for external Steckerching réelle. With fingers of an operator in the grip state operable switches 26, 28 enable the activation or deactivation of the drill in respective operating conditions, such as in the drilling operation.
  • a transmission (gear means) 30 is provided which - to describe in detail below - a motor output torque both in a provided for a drilling operation of the spindle 18 and the drilling tool 20 rotational movement, as well as, for an adjustment operation, the spindle 18 operates in an axially along the spindle longitudinal axis extending spindle adjustment.
  • FIG. 1, Fig. 2 also illustrate how the spindle is covered by shell-like housing portions 32 in the upper region;
  • a (with negative pressure effective) suction port with corresponding flange portion 34 can be seen, which, opened via a suction channel 36 to a drill-side housing inner region, there sucks chips in the drilling operation for external treatment through the outlet 34.
  • the housing has an end section 38 at the end which engages on the drill bit 20 at the engagement end, which for placement on a workpiece to be drilled with the device shown is trained. Inn turning and feeding operation is then, in the manner to be explained in detail below, the spindle placed in a rotary drilling movement and in addition, according to a planned drilling progress, the spindle (in the plane of FIG. 2 to the right) adjusted.
  • FIG. 3 shows, in perspective view, how a driven-side pinion 40 of the electric motor 16 meshes with an equally conical outer toothing of a rotary drive pinion 44 via a bevel gear 42 to form a 90 ° angle, which in turn via its spur toothing 46, with a rotary drive 48 meshes.
  • a driven-side pinion 40 of the electric motor 16 meshes with an equally conical outer toothing of a rotary drive pinion 44 via a bevel gear 42 to form a 90 ° angle, which in turn via its spur toothing 46, with a rotary drive 48 meshes.
  • the tool 20 is detachably and removably attached to the spindle.
  • the gear 30 shown is additionally designed to simultaneously perform a (the drilling tool 20 in the drilling direction advancing) feed movement. This takes place in turn, starting from the assemblies 40, 42 and 44 via a (for example by means of axially releasable cam connection 54, Fig. 4, with skew or slated plane) enabled coupling of the rotational torque of the rotary drive pinion 44 on a coaxial with it on a shaft 56 rotatable stored Verstellritzel 58, which, in the coupled state about the Fig.
  • a suitably in the axial direction (in the plane of Fig. 4 to the right) pneumatically actuated cylinder 64 engages on a rotatably mounted on the shaft 56 hollow shaft 66 inside the pinion 58 and pulls this in the plane to the right to a axially projecting tooth portion 68 of Verstellritzels 58 engages in the manner of a pawl in a locking profile 76 of a fixed receptacle, wherein this caused by the action of the pneumatic cylinder 64 decoupling the pinion 58 from the rotary drive pinion 44, against the restoring force of a compression spring 72, the rotational setting of the adjusting nut 60 on the chain of action 76 - 68 - 58 - 60 allows.
  • a shutdown of the reset operation is realized in the illustrated embodiment.
  • a sensor (not shown) connected to a bearing section 65 (axially in FIG. 4 on the right of the springs 62) engages an engagement of the springs 62 and then deactivates the pneumatics driving the pneumatic cylinder 64.
  • the compression spring 72 then returns the pinion 58 to the engagement position on the pinion 44, the electric motor 16 is shut down in response to pneumatic detection by means of a pneumatic switch 67, the change of state of which (not shown) Engine control is evaluated and deactivated according to the drive motor.
  • the electric motor 16 upstream control electronics which in addition to a signal application of the electric motor in particular also enables the detection of a (current) recorded by the motor 16 armature current.
  • the embodiment then provides for activating appropriate operating mode changes of the drilling machine in response to a change in the armature current (eg, in a completed wellbore), such as a speed reduction of the electric motor 16, to be subsequently lowered by means of the sinker.
  • the present invention is not limited to the embodiment shown, but both the constructive-mechanical, as well as the functional design of the drilling machine shown is purely exemplary and can be adapted almost arbitrarily to a variety of requirements of a deployment environment.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Drilling And Boring (AREA)

Abstract

L'invention concerne une perceuse comprenant une broche (18) conçue pour entraîner en rotation un outil de perçage (20) fixé ou pouvant être fixé, à laquelle sont associés des moyens d'entraînement en rotation destinés à entraîner en rotation la broche et des moyens d'entraînement de réglage destinés à régler axialement la broche de façon que, pendant l'entraînement en rotation de la broche destiné à un fonctionnement de perçage, un réglage axiale de la broche destiné à un fonctionnement d'avance puisse se produire, les moyens d'entraînement en rotation comportant une roue d'entraînement en rotation (48) accouplée solidaire en rotation à la broche et les moyens d'entraînement de réglage comportant un écrou de réglage (60) coopérant avec une partie filetée de la broche de manière coulissante, et des moyens de transmission (30) étant intégrés en tant que module de transmission pour coopérer avec la roue d'entraînement en rotation et avec l'écrou de réglage et étant conçus pour permettre l'entraînement par un moteur d'entraînement (16), le moteur d'entraînement étant un moteur électronique individuel, relié aux moyens de transmission pour entraîner la roue d'entraînement en rotation et l'écrou de réglage et étant disposé, à proximité de ces derniers, dans un carter de perceuse (10) conçu notamment pour la manipulation manuelle, les moyens de transmission (30), la roue d'entraînement en rotation (48) et l'écrou de réglage (60) étant conçus de façon à ce qu'une vitesse de rotation de la roue d'entraînement en rotation diffère d'une vitesse de rotation de l'écrou de réglage, ces vitesses agissant sur la broche au cours du fonctionnement de perçage et du fonctionnement d'avance de cette dernière.
PCT/EP2017/081842 2017-01-27 2017-12-07 Perceuse et utilisation d'une perceuse WO2018137825A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017101675.9 2017-01-27
DE102017101675.9A DE102017101675A1 (de) 2017-01-27 2017-01-27 Bohrmaschine und Verwendung einer Bohrmaschine

Publications (1)

Publication Number Publication Date
WO2018137825A1 true WO2018137825A1 (fr) 2018-08-02

Family

ID=60702691

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Application Number Title Priority Date Filing Date
PCT/EP2017/081842 WO2018137825A1 (fr) 2017-01-27 2017-12-07 Perceuse et utilisation d'une perceuse

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DE (1) DE102017101675A1 (fr)
WO (1) WO2018137825A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114401807A (zh) * 2019-08-21 2022-04-26 布勒特耶自动控制设备有限责任公司 用于切削加工工件的方法和设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078502A2 (fr) * 1999-06-18 2000-12-28 Cooper Technologies Company Outil a avance positive avec elements retractables
WO2013064420A1 (fr) * 2011-11-04 2013-05-10 Atlas Copco Industrial Technique Ab Outil électrique et procédé d'exploitation d'une opération de forage automatisée
US20140169895A1 (en) * 2012-09-07 2014-06-19 Indubrand Ag Precision bore machine and method of producing a precise bore
EP2754531B1 (fr) 2013-01-09 2015-09-23 Seti-Tec Perceuse bimoteur à vitesse d'avance contrôlée

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000078502A2 (fr) * 1999-06-18 2000-12-28 Cooper Technologies Company Outil a avance positive avec elements retractables
WO2013064420A1 (fr) * 2011-11-04 2013-05-10 Atlas Copco Industrial Technique Ab Outil électrique et procédé d'exploitation d'une opération de forage automatisée
US20140169895A1 (en) * 2012-09-07 2014-06-19 Indubrand Ag Precision bore machine and method of producing a precise bore
EP2754531B1 (fr) 2013-01-09 2015-09-23 Seti-Tec Perceuse bimoteur à vitesse d'avance contrôlée

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114401807A (zh) * 2019-08-21 2022-04-26 布勒特耶自动控制设备有限责任公司 用于切削加工工件的方法和设备

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Publication number Publication date
DE102017101675A1 (de) 2018-08-02

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