CN1874871A - Hand-held machine tool - Google Patents

Hand-held machine tool Download PDF

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Publication number
CN1874871A
CN1874871A CNA2004800323498A CN200480032349A CN1874871A CN 1874871 A CN1874871 A CN 1874871A CN A2004800323498 A CNA2004800323498 A CN A2004800323498A CN 200480032349 A CN200480032349 A CN 200480032349A CN 1874871 A CN1874871 A CN 1874871A
Authority
CN
China
Prior art keywords
lathe
cutter
motor
transmission device
machine
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.)
Pending
Application number
CNA2004800323498A
Other languages
Chinese (zh)
Inventor
安德烈亚斯·施特拉塞尔
蒂洛·亨克
安德烈亚斯·施莱格尔
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
Application filed by Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of CN1874871A publication Critical patent/CN1874871A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02Driving main working members
    • B23Q5/027Driving main working members reciprocating members
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23DPLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q15/00Automatic control or regulation of feed movement, cutting velocity or position of tool or work
    • B23Q15/007Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
    • B23Q15/0075Controlling reciprocating movement, e.g. for planing-machine
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23QDETAILS, 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
    • B23Q5/00Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/22Feeding members carrying tools or work
    • B23Q5/34Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B47/00Drives or gearings; Equipment therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25DPERCUSSIVE TOOLS
    • B25D16/00Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • 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
    • B25F5/001Gearings, speed selectors, clutches or the like specially adapted for rotary tools

Abstract

The invention relates to a machine tool, in particular, a hand-held machine tool, comprising a tool (18) which can be displaced by a drive, in particular, a motor (20). The aim of the invention is to increase efficiency, reduce energy consumption and increase the service life of said machine. Said drive is an electomotor which rotates in a uniform manner, and the movement thereof is converted by a gear mechanism (22) into a non-uniform movement and is transmitted to the tool (18).

Description

Hand held power machine
Technical field
The present invention relates to a kind of hand held power machine of the preamble according to claim 1.
Background technology
A kind of keyhole saw (Stichsaege) with a linear motor is disclosed in DE 102 30 726 A1, this linear motor can make cutter carry out motion adjustable, that be accelerated unevenly, so that this cutter respectively can be lentamente with higher torque or apace to move than the low torque adjustable ground when acting on workpiece at every kind of processing situation.
Linear motor firm, that can be used for hand held power machine is for too heavy and too expensive the extensive use in hand held power machine.
Summary of the invention
Hand held power machine with the described feature of claim 1 has such advantage, i.e. load on motor and the motion transferring elements and wearing and tearing are littler and are improved significantly in gross efficiency and service life hand held power machine.
By using a kind of motor that can be especially accurately controlled, firm can in specific hand held power machine, save common in other cases transmission device.
By drive unit being configured to hydraulic pressure-or pneumatic linear actuator, this drive unit can be especially accurately controlled.
Cutter is an insertion tool, and then it can easily be changed with different cutters mutually at different application targets.
By using a kind of motor traditional, that evenly rotate, the transmission device that moves through of this motor is changed in this wise, make uniform motor motion for example be converted into the uneven output movement of transmission device by non-circular gear or non-round cog belt, then can be with lower, more firm motor of a kind of cost and transmission combination special, that can select individually, by this transmission device especially load of conserve energy and reduction force transmission element when dallying for every type hand held power machine.
This transmission device is link gearing or divides gear stage (Schrittgetriebe) or cam gear that then this cutter can be driven with periodically uneven motion.
The transmission device of a motor of Qu Donging and a uneven motion of same generation is combined unevenly, and then adjustable ground is realized a plurality of uneven motion schemes on cutter, to realize the best progress of work in nearly all possible working condition.
By with hand held power machine as planing machine or hand-held Milling Machine, as drilling machine, hammer drill, jump bit, as superfine milling machine, eccentric milling drum or angle grinding machine, as annular saw or linear reciprocating motion saw, constitute as drag scraper or as cutter, utilizing corresponding hand-held tool to carry out when cutter affacts on the workpiece, can not being adjusted to conserve energy and motion mode minimal wear apace in the corresponding special processing.
Description of drawings
Explain the present invention according to an embodiment and affiliated accompanying drawing below.
Accompanying drawing is represented:
Fig. 1 is according to the three-dimensional side view of hand-held linear reciprocating motion saw of the present invention,
Fig. 2 is according to the longitudinal sectional drawing of the hand-held linear reciprocating motion saw of Fig. 1, and
The typical motion curve of tool motion that Fig. 3 tries hard to reach, uneven.
The specific embodiment
Fig. 1 illustrates the hand-held linear reciprocating motion saw 10 that has an elongate housing 11, and the back region of housing is used as gear mechanism housing 14 as the front area of motor field frame 12 and housing.
Stretching out from motor field frame 12 rear portions that an electric current connects cable 16 and stretch out one from gear mechanism housing 14 fronts can be back and forth or saw blade 18 that seesaw, microscler.
Fig. 2 with the longitudinal profile according to the hand-held linear reciprocating motion saw 10 of Fig. 1 illustrate one be bearing in the motor shell 12, as motor 20 drive unit, that have a motor shaft 24, this motor shaft 24 can join with transmission device power shaft 23 couplings, this transmission device power shaft belongs to a transmission device 22, and this transmission device is bearing in the gear mechanism housing 14 of hand-held linear reciprocating motion saw 10.
The driven push rod (Abtriebsstoessel) 26 that stretch out from transmission device 22 on the left side on direction of observation carries out seesawing of straight line, and this seesaws to be passed on this saw blade 18 and by motion arrow 28 and illustrates.Servomotor or stepping motor can be used as drive unit, but hydraulic pressure or pneumatic linear actuator with corresponding adjusting device also can be used as drive unit.
Transmission device 22 can be that a Cylindrical gear actuator with some non-circular gears or one have the tooth belt driver of non-round cog belt or is configured to link gearing or divides gear stage or cam gear.When the described kind of drive made up with the servomotor that evenly rotates, the inhomogeneities of motion was determined by the physical dimension or the adjusting of the above-mentioned kind of drive.During at the described kind of drive and the stepping motor that can control individually or with hydraulic pressure or pneumatic linear actuator combination, the acceleration form that produces individually not only can make up mutually by described drive unit but also by this transmission device respectively, to form the big changeability of the output movement on the cutter.
Therefore, for example not only ballistic motion in hammer drill, be the axially-movable of hammer drill but also its rotation can be unevenly, change the ground configuration.
In the planing machine, rotate Knife for stripping cable if utilize less peripheral speed and higher torque in the time of on affacting workpiece, but Knife for stripping cable is rotated under the situation of the torque of minimum quickly in the not zone of action of Knife for stripping cable, and then Pao Xiao efficient can be improved by the irregular motion of Knife for stripping cable.
In drag scraper, the linear reciprocating motion of Shave tool can carry out with high torque forward and the backhaul that then do not act on the workpiece can be carried out fast and with very little torque.
In cutter or nibbler, the cutting stroke of shear shank can with high torque and the speed of waiting a moment carry out and the backhaul that is used to open can with at a high speed and little torque carry out.In the goose saw machine, the processing stroke can carry out with lower speed of the idle stroke of not doing the time spent than saw blade and higher torque, and engraving machine (Oberfraesen), super smart-and eccentric milling drum, angle grinding machine, annular saw and similar tool machine in, the stack of the motion of carrying out with the form of pulse during Rotating with Uniform has improved service behaviour, for example under situation with sensor control, when affiliated cutter did not act on the workpiece, power or torque standard automatically reduced.
In the drive unit that drives unevenly, can between motor and cutter, connect a transmission device or energy is directly passed to cutter.The transmission device of inhomogeneous work will be not only and the drive unit of even rotation but also combined with the drive unit of inhomogeneous rotation.
Fig. 3 illustrates the oscillating curve as rotational motion displacement time curve, the inhomogeneous variation of periodicity.For example the idle stroke high speed when the returning of linear reciprocating motion saw blade is rotated and is effectively rotated at a slow speed in the impulse stroke when the linear reciprocating motion saw blade acts on the workpiece.
Self-evident, the present invention is not limited on the hand held power machine, but the lathe that can be used for fixing without difficulty.

Claims (10)

1. lathe, especially hand held power machine, has cutter (18) by the driving campaign of drive unit, especially a motor (20), it is characterized in that, this drive unit is a motor that evenly rotates, and the latter's the transmission device (22) that moves through converts uneven motion to and is delivered to this cutter (18).
2. lathe according to claim 1 is characterized in that, this drive unit is constructed to especially to have the hydraulic pressure of the control device of a configuration-or pneumatic linear actuator.
3. lathe, especially hand held power machine, has cutter (18) by the driving campaign of drive unit, especially a motor (20), it is characterized in that, this drive unit is constructed to servomotor or stepping motor, latter's adjustable ground, the inhomogeneous cutter (18) that drives post.
4. according to the described lathe of claim 1,2 or 3, it is characterized in that this cutter (18) is a kind of insertion tool, for example keyhole saw sheet or drill bit.
5. according to claim 1,2,3 or 4 described lathes is characterized in that, this transmission device (22) is provided with unsymmetric gear or asymmetric tooth band.
6. lathe according to claim 1 is characterized in that, this transmission device (22) is a link gearing.
7. lathe according to claim 1 is characterized in that, this transmission device (22) is the branch gear stage.
8. lathe according to claim 1 is characterized in that, this transmission device (22) is a cam gear.
9. one of require described lathe according to aforesaid right, it is characterized in that, in the described motor one according to claim 1 or 2 structures and with according to a coupling connection in described these transmission devices of claim 4 to 7.
10. according to one of aforesaid right requirement described lathe, it is characterized in that this lathe is as planing machine or drag scraper or cutter or annular saw or linear reciprocating motion saw, as Milling Machine or milling drum---as the angle grinding machine or super smart-reach eccentric milling drum or as the hand held power machine of drilling machine, hammer drill or jump bit formation.
CNA2004800323498A 2003-11-11 2004-09-24 Hand-held machine tool Pending CN1874871A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003152500 DE10352500A1 (en) 2003-11-11 2003-11-11 Hand tool
DE10352500.9 2003-11-11

Publications (1)

Publication Number Publication Date
CN1874871A true CN1874871A (en) 2006-12-06

Family

ID=34559562

Family Applications (1)

Application Number Title Priority Date Filing Date
CNA2004800323498A Pending CN1874871A (en) 2003-11-11 2004-09-24 Hand-held machine tool

Country Status (4)

Country Link
EP (1) EP1687117A1 (en)
CN (1) CN1874871A (en)
DE (1) DE10352500A1 (en)
WO (1) WO2005049267A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102300662B (en) * 2009-01-30 2014-12-03 日立工机株式会社 Reciprocating electric tool
CN105715658A (en) * 2014-10-16 2016-06-29 吉生机械股份有限公司 pneumatic machine
CN106444433A (en) * 2015-08-07 2017-02-22 苏州宝时得电动工具有限公司 Power tool and control method for same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN213318064U (en) 2018-01-31 2021-06-01 米沃奇电动工具公司 Reciprocating saw

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US4012964A (en) * 1975-02-14 1977-03-22 Yuan Ho Lee Intermittent rotary mechanism
US4467565A (en) * 1982-08-02 1984-08-28 Chicago Pneumatic Tool Company Rotary and orbital sander
IT1243109B (en) * 1990-03-17 1994-05-24 Zambon Off Mec Flli ROTATING HEAD WITH OSCILLATING SHOES FOR FLATENING AND POLISHING OF GRANITE, CERAMIC OR MARBLE SURFACES
US5549169A (en) * 1993-01-13 1996-08-27 Nippondenso Co., Ltd. Screw tightening apparatus
DE4344849A1 (en) * 1993-12-29 1995-07-06 Fein C & E Machine tool
DE19601300C2 (en) * 1996-01-16 2003-04-17 Ver Deutscher Werkzeugmaschine Drive device for a forming machine
JP3594452B2 (en) * 1997-06-03 2004-12-02 日立ビアメカニクス株式会社 Printed circuit board drilling machine
DE19732001A1 (en) * 1997-07-25 1999-01-28 Festo Tooltechnic Gmbh & Co Drive device for a tool carrier of machine tools
US6009767A (en) * 1998-04-23 2000-01-04 Rudolph; Gary Same-RPM rotary motion to eccentric rotary motion conversion

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102300662B (en) * 2009-01-30 2014-12-03 日立工机株式会社 Reciprocating electric tool
US8922141B2 (en) 2009-01-30 2014-12-30 Hitachi Koki Co., Ltd. Reciprocating electric tool
CN105715658A (en) * 2014-10-16 2016-06-29 吉生机械股份有限公司 pneumatic machine
CN105715658B (en) * 2014-10-16 2018-06-19 吉生机械股份有限公司 pneumatic machine
CN106444433A (en) * 2015-08-07 2017-02-22 苏州宝时得电动工具有限公司 Power tool and control method for same
CN106444433B (en) * 2015-08-07 2019-08-20 苏州宝时得电动工具有限公司 Power tool and control method for power tool

Also Published As

Publication number Publication date
DE10352500A1 (en) 2005-06-09
EP1687117A1 (en) 2006-08-09
WO2005049267A1 (en) 2005-06-02

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C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Open date: 20061206