CN101380732A - Machine tool with air-cushion support - Google Patents
Machine tool with air-cushion support Download PDFInfo
- Publication number
- CN101380732A CN101380732A CNA2008102125769A CN200810212576A CN101380732A CN 101380732 A CN101380732 A CN 101380732A CN A2008102125769 A CNA2008102125769 A CN A2008102125769A CN 200810212576 A CN200810212576 A CN 200810212576A CN 101380732 A CN101380732 A CN 101380732A
- Authority
- CN
- China
- Prior art keywords
- pad
- work mounting
- workpiece
- toolroom machine
- motor
- 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
Links
- 230000000694 effects Effects 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000012216 screening Methods 0.000 claims 1
- 238000004140 cleaning Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D51/00—Sawing 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
- B23D51/02—Sawing 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 beds; of guiding arrangements for work-tables or saw carriers; of frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/02—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of frames; of guiding arrangements for work-table or saw-carrier
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sawing (AREA)
Abstract
A motor-operated machine tool (1), in particular a handheld compass or circular saw is constructed that an air-cushion-like support is formed between the workpiece support pad (3) and a workpiece (6) at the side of the machine tool.
Description
Technical field
The present invention relates to a kind of motor-driven toolroom machine, especially a kind of hand-held electric saw.
Background technology
The motor-driven toolroom machine of formula type noted earlier not only as hand held power machine by known, but also as the fixing toolroom machine that has workbench by known, for example be configured to have be driven and carry out lifting continuously or the electric saw of the saw blade that rotates.For bench type tool machine, the toolroom machine that promptly has workbench, workpiece generally lies on the workbench and along the workbench that is used as the work mounting s pad and moves in face of corresponding driven cutter, so for hand held power machine, as hand-held thorn saw or annular saw, this toolroom machine generally is provided with a flat work mounting s pad, for example gripper shoe or guide plate, and toolroom machine is supported on the workpiece when moving with respect to workpiece by this plate sitting posture.
For hand held power machine and for bench type tool machine, obtain different centripetal forces according to the coefficient of friction and the load of the variation between work mounting s pad and the workpiece, they make the accurate processing difficulty that becomes.Especially coefficient of friction is also owing to the pollution and/or the deposition of workpiece particulate suffer very large fluctuation, especially at the workpiece that constitutes with sensitive material or have on the workpiece of sensing surface, also can cause damage to workpiece by deposition or foul particulate.
Summary of the invention
Task of the present invention is, gets rid of as far as possible because the infringement to processing result that pollution and/or deposition cause.
According to the present invention, a kind of motor-driven toolroom machine is proposed, especially hand electric is sawed, have one and be positioned at the work mounting s pad that passes with respect on the support path of workpiece and by cutter, wherein, be provided with the air fed feeder of work mounting s pad, this feeder to described support path covered by this work mounting s pad and with the regional opening that this work mounting s pad joins, make the bracing or strutting arrangement that between this work mounting s pad and described workpiece, constitutes an air-cushion type.
The feeder of the coincidence zone split shed by on the work mounting s pad of toolroom machine, being arranged on the work mounting s pad, between work mounting s pad and workpiece, constructed the bracing or strutting arrangement of an air-cushion type in the present invention, only show as air film and this bracing or strutting arrangement in the coincidence zone of this bracing or strutting arrangement between work mounting s pad and workpiece in case of necessity and discharge from this coincidence zone as air-flow at the fringe region of work mounting s pad at least, especially be used in cleaning purpose.
Therefore, by toolroom machine according to configuration of the present invention, it is easier and more accurate not only to make controlling of workpiece on the meaning of improving the workpiece guiding under the bench type tool machine situation, and make as the toolroom machine of hand held machines easilier and more accurate with respect to the guiding of workpiece, and be under the situation about improving working conditions at the same time.No matter the latter provides prerequisite for the condition of work of temperature from the viewing angle of seeing the working region better or from the viewing angle in cleaning zone, and one side has reduced the wearing and tearing of work mounting s pad, especially avoided infringement to the surface, cleaning zone to make the mark that easy identification is given in advance for sensing surface on the other hand.
The structure of this air-cushion type bracing or strutting arrangement can be improved like this: the outlet of feeder is configured to make to constitute supporting pad in the open area towards the opening of the bearing-surface expansion of work mounting s pad.
In addition within the scope of the present invention, towards the work mounting s pad contact-making surface of associated workpiece one substantially around the zone at edge in sedimentation or under little gradient situation segment shape construct recessedly, wherein, the recess of Gou Chenging preferably extends in the fringe region of work mounting s pad always and forms the gauge device of curtain-type on the edge region like this, this gauge device allows to constitute the air-cushion type bracing or strutting arrangement, especially allow to constitute the air gap that diaphragm type is flat, preferably in the fringe region of a regulation, especially some go out head piece or one and go out to flow the slit for this air gap configuration in the fringe region of the front on the operative orientation, and this goes out to flow the slit and causes blowing effect targetedly.Also make fringe region keep sealing and for example be provided with except that the work mounting s pad adding the independent blowhole that is provided with within the scope of the invention at end face around ground.
Bracing or strutting arrangement in view of the air-cushion type of stipulating among the present invention, this toolroom machine can dispose integrated compressed air feedway or connect the compressed air feedway of an outside, and wherein latter event combines especially favourable with the pneumatic actuating device that is used for toolroom machine.
In addition, obviously possible within the scope of the present invention is that this toolroom machine electricity consumption drives and relevant therewith electric drive source, especially motor not only is used to drive cutter, and is used to drive the compressed air source that is integrated in the machine.
Other advantage and the embodiment that meets purpose can accessory rights require, draw in description of drawings and the accompanying drawing.
Description of drawings
The motor-driven toolroom machine of a thorn saw form has been shown with schematic skeleton diagram in the accompanying drawing 1, has had the work mounting s pad of corresponding configuration with workpiece.
The specific embodiment
With the motor-driven toolroom machine of hand-held of 1 mark thorn saw 2 forms, this toolroom machine is provided with one and is positioned at respect to work mounting s pad 3 on the support path of workpiece 6, act on workpiece 6 from above.The saw of thorn shown in the figure 2 has housing 4, and this housing holds for the Vidacare corp that is driven reciprocating saw blade 5 usefulness, and this saw blade passes work mounting s pad 3 and touches workpiece 6.A plank or a flat board are shown in the present embodiment as workpiece 6, according to the operative orientation 7 of thorn saw 2, this flat board is worn by saw in the zone of back and is also waited to be sawed to wear in this front, zone on operative orientation 7.Represented with 8 and on operative orientation 7, be in this zone region in front to represent by the zone that saw is worn with 9.Workpiece 6 is supported on the base 10, and side direction staggers with respect to the cutting planes of thorn saw 5 specifically.The corresponding support bar that base 10 can for example pass through workbench constitutes.
Work mounting s pad 3 is connected by support column 11 expressions with housing 4.Saw blade 5 in work mounting s pad 3 zones support and guiding aspect the support that is used for saw blade 5 of setting and/or guide roller by 12 marks.Work mounting s pad 3 is current is configured to plate shape, but also can be configured to segmentation, as is divided into some support bars.In the zone of work mounting s pad 3, be provided with a breach for saw blade 5.
This work mounting s pad 3 comprises some air outlet slits 13 in its contact-making surface 15, these air outlet slits are towards corresponding workpiece 6 direction openings, and thorn saw 2 is placed on this workpiece, and these air outlet slits are connected on the compressed air source by the feeder that does not illustrate.Compressed air source can be integrated in the toolroom machine 1 or be arranged on the toolroom machine outside.
Preferably when electric driver was used to drive saw blade 4, for example when by Motor Drive, compressed air source was integrated in the housing 4, and this drive unit is configured for the drive unit of compressed air source, especially air pump simultaneously.
Advantageously occur this possibility under the situation of outside feeder using: as toolroom machine, especially thorn saw 2 pneumatic actuating device is set also, it is connected on the external compression air source.
The air outlet slit 13 that points to towards corresponding workpiece preferably enlarges the ground structure towards workpiece 6 directions, makes at least air column in the carrying of region generating of corresponding air outlet slit 13.This air column causes not producing the direct support of 6 pairs of work mounting s pads 3 of workpiece, but produces the pad of an air-cushion type between workpiece and work mounting s pad, and this pad may only show as air film on thickness.
What meet purpose aspect this structure be, work mounting s pad 3 with respect to around edge sedimentation ground recessed, this can not find out from accompanying drawing, for example is a retuse arch and goes into portion, this is to the help that establishes of air-cushion type bracing or strutting arrangement.
Even in order to keep working region at that time between toolroom machine 1, especially thorn saw 2 and the workpiece 6 at the foul that also do not have as far as possible in service of working, to aim at ground at the air that edge side flows to work mounting s pad 3 derives and meets purpose, for example by be positioned at the shade height at small workpiece support pads 3 edges of region in front part omitted along operative orientation 7.The flow-out hole that radially extension also can be set in the corresponding way, especially extends in work mounting s pad 3 on operative orientation 7 is as blowhole.
Derive by a kind of such air targetedly, can make the following targetedly improvement of effect that interrelates and blow clean toolroom machine 1 circle-of-sight visibility with the air-cushion type bracing or strutting arrangement: the working region that especially is in the front on operative orientation 7 is dried only, inevitable dust is arranged but still can identify mark preferably although make.In addition, if the workpiece surface that constitutes or have corresponding sensitivity by the material of corresponding sensitivity for example can also be avoided owing to the contact between workpiece 6 and the work mounting s pad 3 causes infringement to workpiece 6 by blowing clean in the environment so around.In addition because avoided with pollutant for example smear metal relevant friction, the wearing and tearing of work mounting s pad 3 have also reduced.
On the whole, reduced hand held power machine 1, the especially required guiding of feeding and the support force of thorn saw 2, reached in addition, it is constant that needed centripetal force keeps basically, because avoided the alternation (stick-slip effect) between static friction and the sliding friction.Evenly the drawing of required centripetal force also makes can realize more accurate processing at workpiece under by situation about constituting than soft material.
The present invention has been explained according to a kind of hand held power machine 1 that is the handsaw form that is configured to sting saw 2 in the front.But these explain be applicable to too annular saw or other, corresponding, motor-driven toolroom machine, especially hand-held, toolroom machine motor-driven, that peg graft with other cutter structurally.
If constitute bearing part for this toolroom machine workpiece 6, toolroom machine 1 is placed on this bearing part, then for desktop computer, work top constitutes bearing part as the work mounting s pad, workpiece moves in face of the cutter that is subordinated to this toolroom machine on this bearing part, thus, the explanation of front also is applicable to this desktop computer in the same way.
Claims (7)
1. motor-driven toolroom machine (1), especially hand electric is sawed, have one and be positioned at the work mounting s pad (3) that passes with respect on the support path of workpiece (6) and by cutter (5), it is characterized in that, be provided with the air fed feeder of work mounting s pad (3), this feeder to described support path covered by this work mounting s pad (3) and with the regional opening that this work mounting s pad (3) joins, make the bracing or strutting arrangement of between this work mounting s pad (3) and described workpiece (a 6) air-cushion type of formation.
2. according to the motor-driven toolroom machine of claim 1, it is characterized in that the work mounting s pad (3) of toolroom machine (1) is positioned on the support path of workpiece (6) from following effect ground with respect to workpiece (6).
3. according to the motor-driven toolroom machine of claim 1, it is characterized in that work mounting s pad (3) is positioned on the support path from top effect ground with respect to workpiece (6).
4. according to the motor-driven toolroom machine of one of claim 1 to 3, it is characterized in that, on the contact-making surface (15) of work mounting s pad (3), be provided with air outlet slit (13).
5. according to the motor-driven toolroom machine of one of claim 1 to 4, it is characterized in that, the contact-making surface (15) of work mounting s pad (3) at least partly spill encircle into.
6. according to the motor-driven toolroom machine of claim 5, it is characterized in that the spill of contact-making surface (15) is encircleed stopping around the edge towards this work mounting s pad (3) on periphery.
7. according to the motor-driven toolroom machine of claim 1, it is characterized in that, work mounting s pad (3) periphery be provided with one with respect to contact-making surface (15) around screening arrangement.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007042723.0 | 2007-09-07 | ||
| DE200710042723 DE102007042723A1 (en) | 2007-09-07 | 2007-09-07 | Motor-operated machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101380732A true CN101380732A (en) | 2009-03-11 |
| CN101380732B CN101380732B (en) | 2012-12-05 |
Family
ID=39888922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810212576 Expired - Fee Related CN101380732B (en) | 2007-09-07 | 2008-09-05 | Motor driven machine tool |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101380732B (en) |
| DE (1) | DE102007042723A1 (en) |
| GB (1) | GB2452630B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102021215108A1 (en) | 2021-12-30 | 2023-07-06 | Robert Bosch Gesellschaft mit beschränkter Haftung | Jigsaw with spaced connecting areas |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3196910A (en) * | 1962-03-30 | 1965-07-27 | Havilah S Hawkins | Work feed for saws |
| DE2746086C3 (en) * | 1977-10-13 | 1980-04-17 | Guenter O. 7421 Mehrstetten Stumpf | Device for cutting layers of fabric packages or the like |
| US4444541A (en) * | 1981-12-18 | 1984-04-24 | Bergman Raymond A | Air float power translation and rotation system |
| US5727434A (en) * | 1993-08-13 | 1998-03-17 | Ryobi America Corporation | Circular saw air table |
| IT1264246B1 (en) * | 1993-10-22 | 1996-09-23 | Selco Srl | CUTTING MACHINE. |
-
2007
- 2007-09-07 DE DE200710042723 patent/DE102007042723A1/en active Pending
-
2008
- 2008-09-05 CN CN 200810212576 patent/CN101380732B/en not_active Expired - Fee Related
- 2008-09-05 GB GB0816314A patent/GB2452630B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB0816314D0 (en) | 2008-10-15 |
| DE102007042723A1 (en) | 2009-03-12 |
| GB2452630A (en) | 2009-03-11 |
| CN101380732B (en) | 2012-12-05 |
| GB2452630B (en) | 2009-07-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20140905 |
|
| EXPY | Termination of patent right or utility model |