EP2483026A1 - Machine tool, in particular a hand-held machine tool - Google Patents

Machine tool, in particular a hand-held machine tool

Info

Publication number
EP2483026A1
EP2483026A1 EP10737581A EP10737581A EP2483026A1 EP 2483026 A1 EP2483026 A1 EP 2483026A1 EP 10737581 A EP10737581 A EP 10737581A EP 10737581 A EP10737581 A EP 10737581A EP 2483026 A1 EP2483026 A1 EP 2483026A1
Authority
EP
European Patent Office
Prior art keywords
tool
machine tool
machine
characterized
means
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
EP10737581A
Other languages
German (de)
French (fr)
Other versions
EP2483026B1 (en
Inventor
Thilo Koeder
Joachim Platzer
Ulli Hoffmann
Jan Koegel
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.)
Robert Bosch GmbH
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 DE200910045235 priority Critical patent/DE102009045235A1/en
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to PCT/EP2010/061175 priority patent/WO2011038953A1/en
Publication of EP2483026A1 publication Critical patent/EP2483026A1/en
Application granted granted Critical
Publication of EP2483026B1 publication Critical patent/EP2483026B1/en
Application status is Expired - Fee Related legal-status Critical
Anticipated expiration legal-status Critical

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, especially a hand-held

Machine tool according to the preamble of claim 1.

State of the art machine tools, especially in the form of hand-held and / or hand-guided machine tools often provide a variety of uses, combined with a range of user-side settings. This requires often user-side knowledge, even with good manuals. Especially with only sporadic use of such machine tools are often the result to prevent operating errors.

Basically thereto nothing changes when the machine tools are equipped with machine-side support for the user, such as jigsaws with accession funds that will assist the user in the pursuit of a given work lines in particular computer systems, for example, shown on a display guidance messages.

An optionally additional mechanical support in the guide of a machine tool is known from DE 10 2006 052 808 A1, in which is provided as a machine tool is a jigsaw provided and the user is thereby mechanically supported in the guide of the machine, the tool of driven in a stroke in the form of the saw blade is rotatable about its stroke axis and is mechanically geared to the respective working line.

As an aid in this case serve the machine side provided sensor systems, in particular approximately over the respective predetermined operating line is detected, a camera, so that the saw blade can be aligned in its rotary position on the working line on the basis of the results of a subsequent evaluation and computing unit via an adjusting device. Although such a semi-autonomous operation simplifies the user the leadership and the avoidance of management errors, caused but to achieve a good quality of work, in the tool selection and adaptation to respective workpiece side conditions special attention.

Disclosure of the Invention

The invention has the object of providing a machine tool of the type mentioned with regard to the assistance to be provided to the user on the machine side in the handling and use of the machine available to further improve.

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

Through the identification of the respective mounting tool, an automated adjustment of the working parameters of the machine tool to the respective insertion tool, in the case of a jigsaw possible so an automated setting of the sawing parameters. This is in semi-autonomous machine tools, so especially in semi-autonomous jigsaws that are already equipped with an imaging sensor system, in particular in the form of a camera around to capture conditions in the working environment of the placement tool, almost without realizing additional effort and thus enables error in the allocation of insertion tool and prevent the assembly tool suitable working parameters. Instead of such optical means, a possible identification is basically given on a mechanical basis, so particularly in the region of the tool holder of the machine tool, provided for example by different shapes in the fastening part of the tool holder or in the mounting part hole images, similar locks, on the design of the tool holder in corresponding machine information is implemented. It is particularly advantageous in the context of the invention, when the machine tool art, in addition to means for detecting the material of the workpiece to be processed in each case is provided, since then with respect a suitable selection of the pick and place tool displayed on the type of material of the respective workpiece to the user at least can be, so that optimization of the working conditions by the correct assignment of type of material, insertion tool and working parameters of the machine tool is ensured. The part of the mounting tool can itself be formed corresponding identification features by design features of the tool, such as for saw blades by the nature of their teeth, or the like its length. It can also be formed by provided on the insertion tool codes corresponding identification features but, as in particular barcode-like shape by embossing or the like.

The configuration of the assembly tool with corresponding identifying characteristics and configuration of the machine tool having means for displaying and / or processing of information on the insertion tool and / or the type of material, particularly in the form of a tool and / or material detection unit, and a downstream control unit all the conditions are created , at least in part - for example, in semi-autonomous machines - for the insertion tool without user to select the machine side drive and / or manipulated parameters appropriate and einzusteuern. This can ensure procedurally an optimized operating mode, the proper adjustment of the working parameters of the machine excludes at least with respect to the oriented type of material choice of the placement tool and based on this insertion tool user error and therefore especially suited for beginners to each correct use of the machine tool easier.

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

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

Fig. 3 to a jigsaw according to the invention designed in a block diagram of the means for collection and processing of the respective insertion tool identifying characteristics and for conversion into control commands for the drive of the assembly tool.

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

Illustrated are thus in Figure 1 is a normal working position which corresponds to the straight ahead direction of travel according to arrow 6. Next, an operation of the jigsaw 2 as 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 the working direction in semi-autonomous mode of operation. In this mode, the blade 8 is machined to a respective predetermined, straight or aligned curved working line and following this, the user essentially where only takes over the support of the working operation resulting from the reaction forces as well as the feed of the jigsaw. 2

In Fig. 1 is still further use of the jigsaw 2 illustrates in a so-called oscillating stroke, in which the saw blade 8 via a pendulum drive 13 in the direction of its saw blade plane superimposed oscillating the lifting drive is adjusted.

These different modes are user-adjustable via a switch means 15th The switching on and off of the jigsaw 2 via an opening provided in the grip area of ​​the housing 3 switching arrangement fourteenth

Corresponding to the respective work requirements, for example, coarse or fine cut, and the particular type of material and / or texture of the workpiece 5 to be processed in each case can be replaced to fit with different saw blades 8, the jigsaw. 2 Various embodiments of such saw blades 8 are shown in Fig. 2 and illustrate that already partly by the particular design of the saw blade 8, it is possible by the shape, by the length and / or the type and shape of the teeth, a distinction and identification , In addition, the blades 8, by way of example as illustrated for a saw blade 28, additional identification features 29 may have provided in the barcode-like shape, for example, on one or both surfaces of the saw blade, in particular can be incorporated. Corresponding marking options provided for example by the saw blade back, for example, by an appropriate screening.

Fig. 2 can be further appreciated that the head portions of the saw blades offer 8 sufficient possibilities for a coding, especially for a mechanical detectable coding, which tapped in the tool holder 9 and further processed into corresponding control commands for operating parameters of the jigsaw 2, in particular number of strokes of the saw blade 8 and swing speed of the shuttle drive 13 may be implemented. Corresponding processing and control means are integrated in the jigsaw 2 picked up by the housing 3 and in the illustration according to Fig. 1 schematically on the front side 16 of the jigsaw 2 symbolically illustrated, wherein, in 21, a computing unit is shown, which in connection with a control unit 22 corresponding actuating means 23 is responsive.

In particular, the invention, optical detection devices 30 come to the identification of the respective saw blade 8 in the framework as a means of detection in question, as it is in Fig. 1 in the front region 16 of the housing 3 to the front comparable to the saw blade 8 is provided and on the saw blade 8 and are illustrated aligned the work area of ​​the saw blade. 8

By focusing on the work area of ​​the saw blade 8 is the Erfas- solution of an approximately predetermined working line and derived from the rotational position orientation of the saw blade 8, it is possible for the operation of the jigsaw as scrolling jigsaw, and it is accordingly to be operated in this mode, jigsaws 2 anyway already provided with an optical detection device 30, via which optionally also more user-relevant of information ones from the work area of ​​the saw blade 8 detects and can be made available to the user, for example by presentation in a likewise provided in the front region of the display 20 can these references also evidence count on the respective saw blade 8 as the insertion tool. 7 Especially those notes but processed and control commands implemented for driving the saw blade. 8

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

Observation of the working area and detecting a working line and a sensor 24 for the saw blade recognition, both sensor systems 18, 24 can also be constructed in the form of a camera and, if appropriate, only differ in their orientation. If necessary, the sen- can riken 18, 24 overlap in coverage, so that they can be used redundantly in circumstances.

Relative to the saw blade recognition, it may prove expedient to admit forward, in which the saw blade 8 is spent to improve monitoring for the respective detecting a rotating and / or lifting position of the saw blade. 8 For this example, the blade 8 can be turned into a cross beitsrichtung position to Geradeausar-. Furthermore, in particular the upper stroke position of the saw blade 8 proves to be one for the detection and identification of functional position, especially in this situation, especially with appropriate encryption rotation of the saw blade 8, the physical design of the saw blade 8 is particularly easy to see and any codes as recesses and depressions and / or barcode similar markings are in a favorable area of ​​observation.

Fig. 3 illustrates schematically the detection of the identification features of a saw blade used as the insertion tool 7 8 via the sensor 24 in the form of a camera, and the subsequent processing of the information obtained in a saw blade recognition 31, for example by comparison, or by processing of coding signals, the saw blade recognition 31 can be part of the computing unit 21st If the saw blade 8 is detected, in a logic 25 of the control unit 22 sets the saw blade 8 associated as a drive parameter values ​​particular to the number of strokes 32 and pendulum number 33, and implemented by the control unit 22 in control commands for the actuator and drive means 13, 23rd

In Fig. 1 is illustrated that the inventive recognition of the mounting tool 7 expediently art with a detection of the material of the workpiece is combined. 5 This makes it possible to modify from the saw blade recognition resulting drive parameters in consideration of the respective type of material and einzusteuern suitably modified drive values ​​for the saw blade 8 for lifting and swing speed.

The Werkstoffarterkennung in FIG. 1 symbolically illustrated over the sensor 26, which is preferably provided in the front region of the can be placed on the workpiece surface 27 bottom plate 4, which can be referred to for the detection of the material in the known technologies.

By the detection of the respective mounting tool 7 and the consideration of best for the particular insertion tool 7 working values ​​on an automated basis, the requirements of the user are significantly reduced, and in particular erroneous assignments respect interdependent working parameters avoided. Supplemented by a Werkstoffarterkennung for the particular workpiece is a further improvement of the quality of work at the same time reducing the requirements for the user to grasp.

Claims

claims
1 . Machine tool, in particular hand-held machine tool (1), comprising a tool holder (9) for changing tooling and means for displaying and / or processing machine side ER- summarized information, characterized in that the means for detecting and / or processing of the respective insertion tool are formed identifying (7) features.
2. Machine tool according to claim 1, characterized in that mechanical and / or optical means for identifying characteristics of each assembly tool (7) are provided.
3. Machine tool according to claim 1 or 2, characterized in that the shape of the respective mounting 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 insertion tool (7) through the insertion tool (7) provided codes are formed.
5. Machine tool are integrated according to one of claims 1 to 4, characterized in that the mechanical, the identification of the respective mounting tool (7) serving means in the region of the tool holder (9) is provided, in particular in the tool holder (9).
6. Machine tool according to one of the preceding claims, characterized in that the optical detection means (30) are formed aligned to the respective mounting by a tool (7) detection optics and / or detector sensors. Machine tool according to one of claims 1 to 6, characterized in that the machine tool (1) having means for detection of the workpiece to be machined in each case (5) of the material type (sensors 26) is provided.
Machine tool according to one of the preceding claims, characterized in that the means for detecting the respective loading tool (7) and / or type of material of the workpiece to be machined in each case (5) having a tool and / or material detection unit and a lower-level control unit, via which the be controlled maschinensei- term driving and / or setting parameters for the assembly tool (7).
Machine tool according to one of the preceding claims, characterized in that the machine tool (1) is formed by a jigsaw (2), especially an at least semi-autonomously operating jigsaw (2).
0. A method of operating a machine tool (1), particularly 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) each fitted, and / or the type of material of the mounting tool (7) workpiece to be machined (5) mechanically and / or optically detected via a machine-side detection unit and implemented over a machine side control unit into control commands for the drive and / or the orientation of the assembly tool (7) become.
EP10737581.8A 2009-10-01 2010-08-02 Semi-autonomously working jigsaw Expired - Fee Related EP2483026B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200910045235 DE102009045235A1 (en) 2009-10-01 2009-10-01 Machine tool, in particular hand-held machine tool
PCT/EP2010/061175 WO2011038953A1 (en) 2009-10-01 2010-08-02 Machine tool, in particular a hand-held machine tool

Publications (2)

Publication Number Publication Date
EP2483026A1 true EP2483026A1 (en) 2012-08-08
EP2483026B1 EP2483026B1 (en) 2014-07-23

Family

ID=43067052

Family Applications (1)

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

Country Status (3)

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

Families Citing this family (2)

* 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
DE102016207883A1 (en) * 2016-05-09 2017-11-09 Robert Bosch Gmbh Coded tool and coded tool sleeve for programming an assembly tool

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19960824C2 (en) * 1999-12-16 2003-08-21 Hilti Ag Method and device for examining and identifying the type of subsurface
DE10026357C2 (en) * 2000-05-27 2002-09-12 Martin Argast Optoelectronic device
US7369916B2 (en) * 2002-04-18 2008-05-06 Black & Decker Inc. Drill press
US7243440B2 (en) * 2004-10-06 2007-07-17 Black & Decker Inc. Gauge for use with power tools
WO2006066259A2 (en) * 2004-12-17 2006-06-22 Milwaukee Electric Tool Corporation Smart acessories 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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2011038953A1 *

Also Published As

Publication number Publication date
EP2483026B1 (en) 2014-07-23
WO2011038953A1 (en) 2011-04-07
DE102009045235A1 (en) 2011-04-28

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