CN101733735B - Hand-held machine tool device - Google Patents
Hand-held machine tool device Download PDFInfo
- Publication number
- CN101733735B CN101733735B CN200910225001.5A CN200910225001A CN101733735B CN 101733735 B CN101733735 B CN 101733735B CN 200910225001 A CN200910225001 A CN 200910225001A CN 101733735 B CN101733735 B CN 101733735B
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- CN
- China
- Prior art keywords
- hand
- adjusting
- machine tool
- adjusting device
- operating point
- 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.)
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Links
- 230000007246 mechanism Effects 0.000 claims description 28
- 230000035939 shock Effects 0.000 claims description 19
- 238000009527 percussion Methods 0.000 claims description 18
- 230000001133 acceleration Effects 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 11
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 230000003116 impacting effect Effects 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005457 optimization Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000205 computational method Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
- B25D2211/06—Means for driving the impulse member
- B25D2211/068—Crank-actuated impulse-driving mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of portable 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
- B25D2216/0084—Mode-changing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/195—Regulation means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/221—Sensors
Abstract
The present invention relates to a hand-held machine tool device which is provided with at least one impact device. The present invention proposes a technical solution that the impact device is provided with an adjusting device for adjusting at least one impact characteristic quantity.
Description
Technical field
The present invention relates to a kind of hand-held machine tool device.
Background technology
A kind of hand-held machine tool device with at least one percussion mechanism has been proposed.
Summary of the invention
The present invention relates to a kind of hand-held machine tool device with at least one percussion mechanism.
The present invention proposes: percussion mechanism has adjusting device, and this adjusting device is provided for regulating at least one shock characteristic amount." shock characteristic amount " should especially be interpreted as operation effect, for example vibration, acceleration, pressure, percussion and/or those skilled in the art think significant other effect, wherein, this adjusting device is especially provided for regulating this shock characteristic amount by the change of frequency of percussion mechanism and/or the rotation speed change of motor.At this, motor can be made up of motor by air motor or especially advantageously." setting " should especially be interpreted as special equipment, design and/or programming.By can be by the adjusting of at least one shock characteristic amount is almost independently optimized to percussion mechanism with the characteristic of workpiece by the structure of hand-held machine tool device of the present invention.
In addition propose: described adjusting device has computing unit, and this computing unit is at least provided for determining according at least one parameter at least one feedback quantity of shock characteristic amount." computing unit " should especially be interpreted as microcontroller, and this microcontroller has processor, memory cell and has and is stored in the working procedure in this memory cell and/or is stored in calculation routine in this memory cell and/or regulates routine.In this article, " parameter " should especially be interpreted as value relevant with internal influence and/or external action, that record in running and/or value curve, and it has described at least one shock characteristic amount at least in part.Internal influence is the temperature of the parts of hand held power machine and/or lubricated especially.External action is cutter and/or workpiece and/or operator especially.In this article, the information about shock characteristic amount that " feedback quantity " is especially interpreted as calculating, it can be for regulating shock characteristic amount.By determining shock characteristic amount, this adjusting can be included in various parameters and regulates interior and can design flexibly especially.
In addition propose: adjusting device has adjusting routine, and this adjusting routine is provided for regulating at least one shock characteristic amount about at least one operating point." adjusting routine " is especially interpreted as such routine, and this routine is carried out for the necessary calculating of the adjusting in running and provided result.Regulate routine advantageously on computing unit, to move." operating point " is especially interpreted as a kind of running status, and in this running status, at least one shock characteristic amount is in operation and is adjusted on predetermined value curve.Operating point preferably has nominal curve and/or the rated value of shock characteristic amount.Therefore, can realize hand-held machine tool device efficient especially and/or to operator close friend.
In addition propose: this adjusting device has at least one measurement mechanism, and adjusting device and measurement mechanism can advantageously be coordinated mutually.At this, measurement mechanism is especially provided for detecting at least one parameter, determines the feedback quantity of shock characteristic amount according to described at least one parameter.
In addition propose: this measurement mechanism has at least one acceleration transducer, and described acceleration transducer is provided for detecting at least one acceleration parameter of hand held power machine." acceleration parameter " should especially be interpreted as the accelerating curve recording along at least one axis.This axis preferred parallel is in main operative orientation.Acceleration parameter especially forms the accurate especially parameter about the vibration of hand held power machine.Can realize especially little, the controlled hand held power machine of vibration by means of acceleration transducer.
In another kind of design, propose: measurement mechanism has at least one pressure sensor, this pressure sensor detects the pressure parameter in the compression chamber of percussion mechanism when being provided for having at least." pressure parameter " should especially be interpreted as the relative pressure curve recording in compression chamber.Pressure parameter is particularly useful for the effect of accurately obtaining the energy being reflected by workpiece especially.In this article, " when having at least " is especially interpreted as: can in compression chamber, realize discrete pressure detecting.Preferably, in compression chamber, occur workpiece reflection energy do the used time, within least one time period, carry out the detection of at least one pressure parameter.Can realize the hand held power machine of working efficiently especially by means of pressure sensor.
In addition propose: adjusting device has at least two adjusting patterns, and these adjusting patterns are provided for providing respectively at least one operating point." adjusting pattern " should especially be interpreted as the specific method of operation, and the described method of operation is adjusted at least one with optimization and specifically act as object.This operating point is especially determined by the calculation routine based on the pattern of adjusting.Therefore can realize the adjusting for same-action is not optimized.
In addition propose: adjusting device is provided for being adjusted to the operating point of optimizing for vibration in one of described adjusting pattern." for vibration optimization " should especially be interpreted as and be in operation at the very little hand held power machine of objective and/or subjective vibration.At this, especially can optimally be adjusted to the vibration that energy is very little and/or allow operator is less feels uncomfortable vibration.Therefore can allow operator especially cosily work.
In addition propose: adjusting device is provided for being adjusted to one for impacting the operating point of optimizing in one of described adjusting pattern." optimize for impacting " and should especially be interpreted as that hand held power machine is in operation and realize the operating efficiency of maximum possible.Can realize especially effectively and working by means of the operating point of impacting optimization.
In addition propose a kind of selectors, this selectors provides the selection possibility of adjusting pattern to operator, and operator can cosily be switched between different adjusting patterns.
In addition, the invention still further relates to a kind of hand held power machine with hand-held machine tool device, wherein, can consider all those skilled in the art think significant, with the hand held power machine of percussion mechanism, what for example especially can expect is impact drill, hammer drill, percussion drill driver, rotary-percussion driver, impact type screwdriver machine, jump bit, stamping hammer and/or for the multifunctional cutter by hand-held machine tool device operation, can provide thus especially efficiently and/or hand held power machine that can comfortable use.
Brief description of the drawings
Other advantage is drawn by following brief description of the drawings.Embodiments of the invention shown in the drawings.In accompanying drawing, description and claim, comprise the large measure feature of combining form.Those skilled in the art can consider separately worthily these features or these Feature Combinations are become to significant other combinations.
In accompanying drawing:
Fig. 1 illustrates the hand held power machine with hand-held machine tool device, pressure sensor and acceleration transducer; And
Fig. 2 illustrates a kind of alternative layout of pressure sensor.
Detailed description of the invention
Fig. 1 and Fig. 2 have illustrated with by hand-held machine tool device 10a of the present invention with schematic diagram respectively, the hand held power machine 24a of 10b, a kind of embodiment of 24b.At this, hand held power machine 24a, the housing 32a of 24b, 32b is cut open like this to be illustrated, make at hand held power machine 24a, the hand-held machine tool device 10a of 24b inside, 10b is visible.
Fig. 1 shows the hand-held machine tool device 10a with percussion mechanism 12a.This percussion mechanism 12a has motor 34a, toggle 36a, conversion element 38a, driven plunger 40a, hammer pipe 42a, compression chamber 28a, impactor 44a and striker 46a.Motor 34a can not reverse and be connected with toggle 36a.Toggle 36a is converted into the vibratory linear motion 52a of driven plunger 40a on the main operative orientation 54a of hand held power machine 24a by means of conversion element 38a by rotatablely moving of the axle 50a of motor 34a.Driven plunger 40a is led by hammer pipe 42a.For this reason, hammer pipe 42a surrounds driven plunger 40a circularly.Driven plunger 40a, by means of the pressure of gas, drives impactor 44a by means of the pressure of the air in compression chamber 28a more precisely.From driven plunger, 40a looks, and impactor 44a is arranged in hammer pipe 42a along main operative orientation 54a, and led by hammer pipe 42a.Under the driving of pressure, impactor 44a can move between driven plunger 40a and striker 46a.If impactor 44a meets striker 46a, impactor 44a is delivered to an impact on striker 46a.Striker 46a and cutter 56a coupling, this cutter is removably disposed on cutter holder 48a.In this embodiment, cutter 56a is designed to augers.This cutter can be also that those skilled in the art think significant other cutter 56a.In addition, in this embodiment, motor 34a makes cutter 56a rotate around rotation 60a by means of axle 58a.Rotation 60a is parallel to main operative orientation 54a.In particular for the beater mechanism of jump bit, those skilled in the art think that significant other configuration is also fine.
In addition, percussion mechanism 12a has adjusting device 14a, and this adjusting device is provided for regulating two shock characteristic amounts.Except two sensor 22a, outside 26a and a selectors 30a, be arranged on together with the power electronic parts 62a that adjusting device 14a is motor 34a power supply with on the circuit board 64a in the handle 66a of the main handle of formation of L-shape housing 32a.Adjusting device 14a has computing unit 16a, and this computing unit is configured to microcontroller.This computing unit 16a is in operation and carries out three routines.The first calculation routine 68a is provided for determining according to parameter the feedback quantity of shock characteristic amount.In this embodiment, the accelerating curve of the pressure curve in compression chamber 28a and housing 32a uses as parameter.The second calculation routine 70a determines an operating point, and this operating point is used as the command quantity regulating.Regulate routine 18a to be provided for regulating the shock characteristic amount that should regulate about described operating point.For this reason, (for example for PID-adjuster) computational methods and the compensation method that regulates routine 18a to have not describe in detail.
In addition, Fig. 1 shows, and adjusting device 14a has measurement mechanism 20a, and this measurement mechanism is provided for detecting two parameters.On the one hand, measurement mechanism 20a is that the acceleration parameter that detects hand held power machine 24a has acceleration transducer 22a.This acceleration transducer 22a is arranged on the circuit board 64a being coupled with housing 32a.Acceleration parameter comprises about the information of housing 32a vibration with about the information of energy, and the workpiece not being shown specifically reflects this energy.Carry out measuring vibrations according to the position of the acceleration transducer 22a operator who does not illustrate near.
In order to detect the pressure parameter in the compression chamber 28a of percussion mechanism 12a, measurement mechanism 20a has pressure sensor 26a.The distolateral 72a that this pressure sensor 26a is arranged on the main operative orientation 54a of sensing of driven plunger 40a goes up and is connected with circuit board 64a by means of information carrier (being electric conductor 74a in this case).Pressure sensor 26a can detect the pressure curve in compression chamber 28a enduringly in this position.Pressure parameter comprises the information relevant with the energy of workpiece reflection and the information about housing 32a vibration.
In addition, adjusting device 14a has two adjusting patterns.Depending on adjusting pattern, different operating points is used for reconciling.Different operating points is for different effect optimization.One of these adjusting patterns are provided for being adjusted to the operating point of optimizing for vibration.Another kind of mode of operation is provided for being adjusted to the operating point of optimizing for impacting.In order to make operator can select different adjusting patterns, hand-held machine tool device 10a has selectors 30a, and this selectors provides the selection possibility of adjusting pattern for operator.This selectors 30a is configured to switch and is arranged on the bottom side 76a of housing 32a.
Figure 2 illustrates another kind of embodiment of the present invention.Different from previous embodiment: the alphabetical a in Fig. 1 in the Reference numeral of embodiment is replaced by alphabetical b in the Reference numeral of the embodiment shown in Fig. 2.The following description be substantially limited to Fig. 1 in the difference of embodiment, wherein, with regard to the parts, feature and the function that remain unchanged, can be referring to the explanation of the embodiment in Fig. 1.
Fig. 2 shows a kind of hand-held machine tool device 10b, different from the first embodiment in this hand-held machine tool device: pressure sensor 26b is arranged on a side 78b of hammer pipe 42b.Pressure sensor 26b is communicated with the compression chamber 28b of hammer pipe 42b by means of pressure channel 82b; wherein; pressure channel 82b is arranged in the guiding area of hammer pipe 42b; the impactor 44b of percussion mechanism 12b leads in this guiding area; thereby impactor 44b seals this pressure channel 82b at least one operating point, and therefore protect pressure sensor 26b.At this, pressure channel 82b is such to be arranged away from driven plunger 40b far awayly, and the maximum of protecting pressure sensor 26b to avoid pressure curve by impactor 44b during the maximum of pressure curve is affected.When the maximum of pressure curve appears at the spacing 80b minimum between impactor 44b and driven plunger 40b.At this time point, the hole 82b that passes to pressure sensor 26b in impactor 44b sealing hammer pipe 42b.As substituting of impactor 44b, driven plunger 40b also can confining pressure passage 82b.
Claims (4)
1. a hand-held machine tool device, with at least one percussion mechanism (12a, 12b), wherein, described percussion mechanism (12a, 12b) there is adjusting device (14a, 14b), this adjusting device is provided for regulating at least one shock characteristic amount, wherein, described adjusting device (14a, 14b) there is at least one measurement mechanism (20a, 20b), described measurement mechanism has at least one acceleration transducer (22a, 22b), described acceleration transducer is provided for detecting hand held power machine (24a, at least one acceleration parameter 24b), wherein, described acceleration parameter is made up of the accelerating curve recording along at least one axis, described axis is parallel to this hand held power machine (24a, main operative orientation 24b),
And described measurement mechanism (20a, 20b) has at least one pressure sensor (26a, 26b), described pressure sensor detects described percussion mechanism (12a when being provided for having at least, pressure parameter in compression chamber (28a, 28b) 12b)
Wherein, described adjusting device (14a, 14b) has adjusting routine (18a, 18b), and this adjusting routine is provided at least regulating described shock characteristic amount about at least one operating point, and
Described adjusting device (14a, 14b) has at least two kinds of adjusting patterns, and described adjusting pattern is provided for providing respectively at least one operating point, and
Described adjusting device (14a, 14b) is provided for being adjusted to the operating point optimized for vibration and is provided for being adjusted to the operating point of optimizing for impacting in another of described adjusting pattern in one of described adjusting pattern.
2. hand-held machine tool device as claimed in claim 1, it is characterized in that, described adjusting device (14a, 14b) there is computing unit (16a, 16b), this computing unit is at least provided for determining according at least one parameter at least one feedback quantity of described shock characteristic amount.
3. hand-held machine tool device as claimed in claim 1 or 2, is characterized in that, is provided with selectors (30a, 30b), and described selectors provides the selection possibility of adjusting pattern for operator.
4. a band is just like the hand held power machine of the hand-held machine tool device (10a, 10b) one of claims 1 to 3 Suo Shu.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008044044.2 | 2008-11-25 | ||
| DE102008044044A DE102008044044A1 (en) | 2008-11-25 | 2008-11-25 | Hand machine tool device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101733735A CN101733735A (en) | 2010-06-16 |
| CN101733735B true CN101733735B (en) | 2014-12-03 |
Family
ID=41278131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910225001.5A Active CN101733735B (en) | 2008-11-25 | 2009-11-24 | Hand-held machine tool device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2189249B1 (en) |
| CN (1) | CN101733735B (en) |
| DE (1) | DE102008044044A1 (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012206451B4 (en) * | 2012-04-19 | 2020-12-10 | Hilti Aktiengesellschaft | Hand machine tool |
| US20150202758A1 (en) * | 2012-05-25 | 2015-07-23 | Rainer Nitsche | Percussion Unit |
| DE102012208870A1 (en) * | 2012-05-25 | 2013-11-28 | Robert Bosch Gmbh | Percussion unit |
| CN103573183A (en) * | 2012-08-06 | 2014-02-12 | 周飞 | Modified pneumatic percussion drill |
| DE102013208902B4 (en) | 2013-05-14 | 2023-12-14 | Robert Bosch Gmbh | Hand tool device |
| DE102013212635A1 (en) * | 2013-06-28 | 2014-12-31 | Robert Bosch Gmbh | Hand machine tool device |
| DE102014207434A1 (en) * | 2014-04-17 | 2015-10-22 | Robert Bosch Gmbh | Method for operating a handheld power tool, power tool |
| DE102014212253A1 (en) * | 2014-06-26 | 2015-12-31 | Robert Bosch Gmbh | Percussion device |
| EP3028820A1 (en) * | 2014-12-03 | 2016-06-08 | HILTI Aktiengesellschaft | Hand-held machine tool and control method therefor |
| EP3028821A1 (en) | 2014-12-03 | 2016-06-08 | HILTI Aktiengesellschaft | Control method for a hand-held machine tool |
| DE102015205172A1 (en) * | 2015-03-23 | 2016-09-29 | Robert Bosch Gmbh | Machine tool, in particular hand tool, with a motor drive unit and with at least one sensor device |
| EP3290721A1 (en) | 2016-08-30 | 2018-03-07 | HILTI Aktiengesellschaft | Distance sensor on anchor tip |
| CN108547471A (en) * | 2018-04-20 | 2018-09-18 | 王云龙 | A kind of safety fire fighting component |
| CN108637322A (en) * | 2018-04-20 | 2018-10-12 | 李晓梅 | A kind of numerically controlled processing equipment |
| CN108543979A (en) * | 2018-04-20 | 2018-09-18 | 郑牡兰 | A kind of advanced mold design and manufacturing technology equipment |
| CN110774236B (en) * | 2019-11-20 | 2021-07-27 | 山东奥德燃气设备制造有限公司 | Pneumatic impact tool with adjustable pressure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025830A (en) * | 1978-07-21 | 1980-01-30 | Hilti Ag | Hammer drill |
| US6508315B1 (en) * | 2001-06-07 | 2003-01-21 | Steven James Lindsay | Small impact power tool |
| US6691798B1 (en) * | 2002-06-19 | 2004-02-17 | Steven James Lindsay | Variable hand pressure activated power tool |
| GB2411375A (en) * | 2004-02-26 | 2005-08-31 | South West Highways Ltd | Vibration reduction in pneumatic tools. |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10309012B3 (en) * | 2003-03-01 | 2004-08-12 | Hilti Ag | Control method for hand-held electric hammer drill using microcontroller for repetitive opening and closing of clutch between electric motor and tool chuck |
| DE10316844A1 (en) * | 2003-04-11 | 2004-11-04 | Hilti Ag | Control of an electric hand machine tool |
| DE102007000488A1 (en) * | 2007-09-12 | 2009-03-19 | Hilti Aktiengesellschaft | Hand tool with air spring impact mechanism, linear motor and control method |
| GB0804967D0 (en) * | 2008-03-18 | 2008-04-16 | Black & Decker Inc | Powered hammer with a vibration dampening mechanism |
-
2008
- 2008-11-25 DE DE102008044044A patent/DE102008044044A1/en not_active Withdrawn
-
2009
- 2009-09-25 EP EP09171301.6A patent/EP2189249B1/en active Active
- 2009-11-24 CN CN200910225001.5A patent/CN101733735B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2025830A (en) * | 1978-07-21 | 1980-01-30 | Hilti Ag | Hammer drill |
| US6508315B1 (en) * | 2001-06-07 | 2003-01-21 | Steven James Lindsay | Small impact power tool |
| US6691798B1 (en) * | 2002-06-19 | 2004-02-17 | Steven James Lindsay | Variable hand pressure activated power tool |
| GB2411375A (en) * | 2004-02-26 | 2005-08-31 | South West Highways Ltd | Vibration reduction in pneumatic tools. |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101733735A (en) | 2010-06-16 |
| EP2189249A1 (en) | 2010-05-26 |
| DE102008044044A1 (en) | 2010-05-27 |
| EP2189249B1 (en) | 2018-01-17 |
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