WO2011038953A1 - Machine tool, in particular a hand-held machine tool - Google Patents

Machine tool, in particular a hand-held machine tool Download PDF

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Publication number
WO2011038953A1
WO2011038953A1 PCT/EP2010/061175 EP2010061175W WO2011038953A1 WO 2011038953 A1 WO2011038953 A1 WO 2011038953A1 EP 2010061175 W EP2010061175 W EP 2010061175W WO 2011038953 A1 WO2011038953 A1 WO 2011038953A1
Authority
WO
WIPO (PCT)
Prior art keywords
tool
machine tool
machine
characterized
particular
Prior art date
Application number
PCT/EP2010/061175
Other languages
German (de)
French (fr)
Inventor
Thilo Koeder
Joachim Platzer
Ulli Hoffmann
Jan Koegel
Original Assignee
Robert Bosch 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
Priority to DE102009045235.4 priority Critical
Priority to DE200910045235 priority patent/DE102009045235A1/en
Application filed by Robert Bosch Gmbh filed Critical Robert Bosch Gmbh
Publication of WO2011038953A1 publication Critical patent/WO2011038953A1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25FCOMBINATION 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
    • B25F5/00Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for

Abstract

The invention relates to a machine tool (1), in particular in the form of a hand-held sabre saw (2), having a tool holder (9) and means for detecting identification characteristics of a placement tool (7) held in the tool holder (9).

Description

 description

Machine tool, in particular hand-held machine tool The invention relates to a machine tool, in particular a hand-held machine

Machine tool, according to the preamble of claim 1.

PRIOR ART Machine tools, especially in the form of hand-held and / or hand-guided machine tools, often offer a multitude of possible uses, combined with a large number of user-side setting options. This often requires user knowledge, even with good manuals. Especially with only sporadic use of such machine tools, this often results in incorrect operation.

In principle, this also does not change if the machine tools are equipped with machine-side aids for the user, for example in jigsaws with guide aids, which are intended to support the user in the pursuit of prescribed working lines, in particular computer-aided, for example by guide messages displayed on a display.

An optionally complementary mechanical support in the leadership of a machine tool is known from DE 10 2006 052 808 A1, in which a jigsaw is provided as a machine tool and the user is thereby mechanically supported in the leadership of the machine that the tool driven in the form of a hubbeweglich Saw blade is rotatable about its stroke axis and is aligned by machine to the respective working line.

The tools used here are machine-side-provided sensors, in particular, for example, a camera, via which the respective predetermined working line is detected is, so that based on the results of a downstream evaluation and processing unit via an adjusting device, the saw blade can be aligned in its rotational position on the line. Although such a semi-autonomous operation makes it easier for the user to guide and avoid guide errors, but in order to achieve a good quality of work, special attention in the tool selection and adaptation to respective workpiece-side conditions.

Disclosure of the invention

The invention has for its object to further improve a machine tool of the type mentioned in terms of assistance provided to the user on the machine side in the handling and use of the machine.

This is achieved with the features of claim 1, the dependent claims indicate expedient developments.

By identifying the respective placement tool, an automated adjustment of the working parameters of the machine tool to the respective placement tool, in the case of a jig saw thus an automated setting of the saw parameters, possible. This is in semiautonomous machine tools, so in particular at semi-autonomous jigsaws, which are equipped with an imaging sensor, in particular in the form of a camera for detecting conditions in the working environment of the placement tool, to realize almost no additional effort and thus allows errors in the assignment of To avoid insertion tool and working parameters suitable for the assembly tool. Instead of such optical means is basically given a possibility of identification on a mechanical basis, especially in the field of tool holder of the machine tool, such as different shapes in the fastening part of the tool holder or fastening part provided hole patterns, similar to locks on the design of the tool holder in appropriate machine information to be implemented. Of particular advantage, it is within the scope of the invention, when the machine tool is additionally provided with means for detecting the material type of each workpiece to be machined, since then based on the type of material of the respective workpiece and a suitable selection of the placement tool the user at least displayed can be, so that an optimization of the working conditions is ensured by the correct allocation of material, placement tool and working parameters of the machine tool. On the part of the placement tool corresponding identification features can also be formed by design features of the tool itself, such as saw blades by the nature of their teeth, their length or the like. However, corresponding identification features can also be formed by codes provided on the placement tool, in particular in barcode-like form by imprints or the like.

Due to the configuration of the placement tool with correspondingly identifying features and the design of the machine tool with means for displaying and / or processing information about the placement tool and / or the type of material, in particular in the form of a tool and / or material detection unit and a downstream control unit all prerequisites are created , at least in part - for example in semi-autonomous machine tools - to properly select and control the machine-side drive and / or setting parameters for the placement tool without the user's intervention. In this way, procedurally an optimized working operation can be ensured, which excludes user-side error, at least with regard to the material type oriented choice of placement tool and related to this placement tool appropriate adjustment of the machine parameters and thus especially for inexperienced the correct use of the machine tool facilitated.

Further details and features of the invention will become apparent from the claims, the description and the drawings. These show: 1 as an example of a hand-held machine tool, a schematic representation of a jigsaw,

Fig. 2 shows a selection of different saw blades as mounting tools for the jigsaw, and

3 shows a jigsaw designed according to the invention in a block diagram, the means for detecting and processing the features identifying the respective placement tool and for conversion into control commands for the drive of the placement tool.

As a machine tool 1, a jigsaw 2 is illustrated. This has a housing 3 which is slidably supported on the surface 27 of a workpiece 5 via a base plate 4. The jigsaw 2 has a saw blade 8 as a placement tool 7 held in a tool holder 9. The saw blade 8 is driven to lift in the direction of the arrow 10 and about its axis of rotation corresponding rotation axis 12, as indicated by the arrow 1 1, rotatable. About the rotational position 12 of the saw blade 8, the respective sawing direction is specified as the working direction. The indicated by the arrow 6 working direction corresponds to the straight-ahead working direction of the jigsaw 2, which coincides with untwisted saw blade 8 in the extension with the plane of the saw blade 8.

Illustrated are thus in Figure 1 is a Regelarbeitsstellung that corresponds to the straight ahead working direction according to arrow 6; Furthermore, an operation of the jigsaw 2 as a so-called "scrolling Jigsaw", in which the jigsaw 2 operates in one of the determined by the respective rotational position of the saw blade 8 working in semi-autonomous mode of operation in this mode of operation, the saw blade 8 by machine to a respective predetermined, straight or aligned and follows this crooked line, the user essentially only takes over the support of the resulting work from the reaction forces and the feed of the jigsaw 2.

In Fig. 1, the use of the jigsaw 2 is further illustrated in a so-called Pendelhubbetrieb in which the saw blade 8 via a pendulum drive 13 is displaced in the direction of its saw blade plane superimposed to the lifting drive pendulum.

These different operating modes can be adjusted by the user via a switching device 15. The switching on and off of the jigsaw 2 via a provided in the grip region of the housing 3 switching arrangement 14th

According to the respective work requirements, for example coarse or fine cut, and the respective material type and / or condition of the respective workpiece 5 to be machined, the jigsaw 2 is replaceable to be equipped with different saw blades 8. Various embodiments of such saw blades 8 are shown in Fig. 2 and illustrate that sometimes even by the respective design of the saw blade 8, whether by the shape, by the length and / or the type and shape of the teeth, a distinction and identification is possible , Furthermore, the saw blades 8, as illustrated by way of example for a saw blade 28, may have additional identification features 29, which may be provided in barcode-like form, for example on one or both saw blade surfaces, in particular incorporated therein. Corresponding marking options, for example, also offers the saw blade back, for example, by a corresponding screening.

Fig. 2 also shows that even the head parts of the saw blades 8 provide sufficient opportunities for coding, especially for a mechanically detectable coding that tapped in the tool holder 9 and further processed in corresponding control commands for working parameters of the jigsaw 2, in particular stroke rate of the saw blade 8 and pendulum number of the pendulum drive 13, can be implemented. Corresponding processing and control devices are integrated into the jigsaw 2 of the housing 3 and shown schematically in the representation of FIG. 1 on the front side 16 of the jigsaw 2, wherein at 21 a computing unit is shown, in conjunction with a control unit 22nd corresponding actuators 23 responds.

In particular, for the purpose of identification of the respective saw blade 8 in the context of the invention, optical detection devices 30 are considered as means for detecting, as shown in FIG. 1 in the front region 16 of the housing 3 to the front. provided for saw blade 8 and aligned on the saw blade 8 and the working area of the saw blade 8 are illustrated.

As a result of the alignment with the working area of the saw blade 8, the detection of an approximately predetermined working line and, derived therefrom, the rotational position alignment of the saw blade 8, is possible for the operation of the jigsaw as scrolling jigsaw, and jigsaws 2 to be operated accordingly are already provided in this operating mode provided with an optical detection device 30, via which, if necessary, further user-relevant information can be recorded from the working area of the saw blade 8 and made usable for the user, for example by representation in a display 20 also provided in the front area count on the respective saw blade 8 as a mounting tool 7. In particular, however, such instructions are processed and converted into control commands for driving the saw blade 8.

In view of the different requirements with respect to the saw blade detection on the one hand and the observation of the working range of the saw blade 8 on the other hand, the optical detection unit 30 for the purposes mentioned have different sensors, such as a sensor 18 for

Observation of the working area and detection of a working line and a sensor 24 for saw blade detection, both sensor systems 18, 24 may be formed in the form of a camera and may differ only in terms of their orientation. Optionally, the sensors 18, 24 can also overlap in the detection range, so that under certain circumstances they can be used redundantly.

With regard to the saw blade detection, it may prove expedient to predefine a rotary and / or lifting position of the saw blade 8 for the respective detection, into which the saw blade 8 is moved for better observation. For this purpose, for example, the saw blade 8 can be rotated in a transverse position to the straight-ahead working direction. Furthermore, in particular, the upper stroke position of the saw blade 8 proves to be useful for detection and identification position, especially in this position, in particular with appropriate rotation of the saw blade 8, the physical design of the saw blade 8 is particularly well recognized and any coding like recesses and Wells and / or barcode-like markings are in a favorable observation area.

3 schematically illustrates the detection of the identification features of a saw blade 8 used as a mounting tool 7 via the sensor system 24 in the form of a camera and the subsequent processing of the information thus obtained in a saw blade identifier 31, for example by image comparison or by processing the coding signals, the saw blade identifier 31 Part of the arithmetic unit 21 may be. If the saw blade 8 is detected, the control unit 22 sets the values associated with the saw blade 8 as drive parameters, in particular for the number of strokes 32 and pendulum number 33, and converts them into control commands for the actuating and drive devices 13, 23.

In Fig. 1 it is illustrated that the detection of the assembly tool 7 according to the invention is advantageously combined with a recognition of the material type of the workpiece 5. This makes it possible to modify the drive parameters resulting from the saw blade recognition in consideration of the respective type of material and to control correspondingly modified drive values for the saw blade 8 in terms of stroke and pendulum number.

The material identifier is symbolically illustrated in FIG. 1 via the sensor system 26, which is preferably provided in the front region of the foot plate 4 which can be placed on the workpiece surface 27, wherein known technologies can be used for the recognition of the material.

By capturing the respective placement tool 7 and taking into account the most favorable for the respective placement tool 7 work values on an automated basis, the requirements on the user are significantly reduced and in particular erroneous assignments with respect to interdependent working parameters avoided. Supplemented by a material type identification for the respective workpiece, a further improvement in the quality of work can be achieved while at the same time reducing the demands on the user.

Claims

claims
1 . Machine tool, in particular hand-held machine tool (1), with a tool holder (9) for changing tooling and with means for displaying and / or processing machine side detected information, characterized in that the means for detecting and / or processing of the respective placement tool (7) identifying features are formed.
2. Machine tool according to claim 1, characterized in that mechanical and / or optical means for identifying features of the respective placement tool (7) are provided.
3. Machine tool according to claim 1 or 2, characterized in that the shape of the respective placement tool (7) forms its identification features.
4. Machine tool according to one of claims 1 to 3, characterized in that the identification features for a respective placement tool (7) are formed by the insertion tool (7) provided codings.
5. Machine tool according to one of claims 1 to 4, characterized in that the mechanical, the identification of the respective placement tool (7) serving means in the region of the tool holder (9) provided, in particular in the tool holder (9) are integrated.
6. Machine tool according to one of the preceding claims, characterized in that the optical detection means (30) by a on the respective placement tool (7) aligned detection optics and / or detection sensors are formed. Machine tool according to one of claims 1 to 6, characterized in that the machine tool (1) is provided with means for detecting the type of material (sensor 26) of the respective workpiece to be machined (5).
Machine tool according to one of the preceding claims, characterized in that the means for detecting the respective placement tool (7) and / or the type of material to be machined workpiece (5) have a tool and / or material detection unit and a downstream control unit via which the machine-side drive and / or adjustment parameters for the placement tool (7) are controlled.
Machine tool according to one of the preceding claims, characterized in that the machine tool (1) by a jigsaw (2), in particular an at least semi-autonomously working jigsaw (2) is formed.
0. A method for operating a machine tool (1), in particular a hand-held machine tool (1), in particular according to one or more of the preceding claims, characterized in that the tool (7) with which the machine tool (1) is respectively equipped, and / or the material type of the work piece (5) to be machined with the placement tool (7) is detected mechanically and / or optically via a machine-side detection unit and converted via a machine-side control unit into control commands for the drive and / or alignment of the placement tool (7) become.
PCT/EP2010/061175 2009-10-01 2010-08-02 Machine tool, in particular a hand-held machine tool WO2011038953A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE102009045235.4 2009-10-01
DE200910045235 DE102009045235A1 (en) 2009-10-01 2009-10-01 Machine tool, in particular hand-held machine tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10737581.8A EP2483026B1 (en) 2009-10-01 2010-08-02 Semi-autonomously working jigsaw

Publications (1)

Publication Number Publication Date
WO2011038953A1 true WO2011038953A1 (en) 2011-04-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/061175 WO2011038953A1 (en) 2009-10-01 2010-08-02 Machine tool, in particular a hand-held machine tool

Country Status (3)

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EP (1) EP2483026B1 (en)
DE (1) DE102009045235A1 (en)
WO (1) WO2011038953A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2883664A1 (en) * 2013-12-16 2015-06-17 HILTI Aktiengesellschaft Tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016207883A1 (en) * 2016-05-09 2017-11-09 Robert Bosch Gmbh Coded tool and coded tool sleeve for programming an assembly tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1109034A1 (en) * 1999-12-16 2001-06-20 HILTI Aktiengesellschaft Method and apparatus for investigation and identification of the nature of the underlying surface
DE10026357A1 (en) * 2000-05-27 2002-01-31 Martin Argast Optoelectronic device used with hand drilling machine, determines and displays structural and geometry data of object surface
EP1645371A1 (en) * 2004-10-06 2006-04-12 BLACK & DECKER INC. Gauge for use with power tools
US20060104731A1 (en) * 2002-04-18 2006-05-18 Etter Mark A Drill press
US20060159533A1 (en) * 2004-12-17 2006-07-20 Zeiler Jeffrey M Smart accessories for power tools
DE102006052808A1 (en) 2006-11-09 2008-05-15 Robert Bosch Gmbh hand-held jigsaw
DE102006061581A1 (en) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Electric power tool e.g. drilling hammer, device for use during processing of e.g. wall, has coupling unit coupling sensor unit to tool base, where sensor unit determines characteristic and has sensor component for detecting characteristic

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1109034A1 (en) * 1999-12-16 2001-06-20 HILTI Aktiengesellschaft Method and apparatus for investigation and identification of the nature of the underlying surface
DE10026357A1 (en) * 2000-05-27 2002-01-31 Martin Argast Optoelectronic device used with hand drilling machine, determines and displays structural and geometry data of object surface
US20060104731A1 (en) * 2002-04-18 2006-05-18 Etter Mark A Drill press
EP1645371A1 (en) * 2004-10-06 2006-04-12 BLACK & DECKER INC. Gauge for use with power tools
US20060159533A1 (en) * 2004-12-17 2006-07-20 Zeiler Jeffrey M Smart accessories for power tools
DE102006052808A1 (en) 2006-11-09 2008-05-15 Robert Bosch Gmbh hand-held jigsaw
DE102006061581A1 (en) * 2006-12-27 2008-07-03 Robert Bosch Gmbh Electric power tool e.g. drilling hammer, device for use during processing of e.g. wall, has coupling unit coupling sensor unit to tool base, where sensor unit determines characteristic and has sensor component for detecting characteristic

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2883664A1 (en) * 2013-12-16 2015-06-17 HILTI Aktiengesellschaft Tool

Also Published As

Publication number Publication date
EP2483026A1 (en) 2012-08-08
DE102009045235A1 (en) 2011-04-28
EP2483026B1 (en) 2014-07-23

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