CN1155862A - Machine tool collet with axial stop - Google Patents
Machine tool collet with axial stop Download PDFInfo
- Publication number
- CN1155862A CN1155862A CN 96190576 CN96190576A CN1155862A CN 1155862 A CN1155862 A CN 1155862A CN 96190576 CN96190576 CN 96190576 CN 96190576 A CN96190576 A CN 96190576A CN 1155862 A CN1155862 A CN 1155862A
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- China
- Prior art keywords
- chuck
- jaw
- planar section
- block
- tool shank
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- 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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Abstract
The machine tool collet (10) has a plurality of gripping jaws (12) held in a longitudinal and angularly spaced relation about a longitudinal centerline axis (14) through the collet (10). The gripping jaws (12) have an inner face (16) parallel to the centerline axis (14) and the plurality of jaws (12) define an inner diameter opening (18) through the collet (10) for receiving a tool shank (20). Resilient material (28) is disposed between the gripping jaws (12) for holding the plurality of jaws (12) in the desired spaced relation. The radially inward directed stop (30) is defined within the opening (18) of the collet (10). The stop (30) is disposed so as to contact the rear face (22) of a tool shank (20) inserted into the collet (10) thereby preventing rearward axial movement of the tool shank (20) within the collet (10).
Description
The present invention relates to a kind of machine tool collet, particularly a kind of machine tool collet that wherein is formed with the block that is used to absorb axial force.
The machine tool collet that is used for clamping any kind instrument is being known in the art.Such as, the U.S. Patent No. 2346706 of Stoner has been narrated a kind of traditional chuck, the clamping element with a plurality of band straight side edges, and they remain on the relative position that equi-spaced apart comes around a common axis line by means of the elastomeric material between each clamping element.This material generally is rubber or rubber composition.The example of this chuck is known Rubber-Flex
Chuck is by Jacobs
(the Jacobs of chuck manufacturing company
Chuck Manufacturing Company) makes sale.
Another kind of chuck is the dissection type steel chuck of knowing, and relies silk fabric to foretell the Kennametal in city such as Pennsylvania
(the Kennametal of company
Of Latrobe, Pennsylvania) manufacturing sale person.
Using traditional Rubber-Flex
With dissection type steel chuck to clamp and to hold under the situation of circular tool shank each clamping part (dissection type chuck) and clamping plate (Rubber-Flex
Chuck) interior diameter clamping surface hold each corresponding tool shank and absorb whole length that basic upper edge each clamping surface put on tool shank axially and rotate stress the two.Such as, adopt this traditional chuck, uniquely prevent that tool shank from making disadvantageous axially movable factor in chuck the inside be clamping dynamics or friction strength between each clamping plate or clamping part and the tool shank.Thereby each clamping plate or clamping part all bear shearing force or stress on rotation and axis both direction.The instrument that prevents is done disadvantageous moving axially for required clamping dynamics between chuck and tool shank in chuck the inside, is a vital factor and a crucial factor often.
Thereby, thereby a kind of chuck that absorbs the rotation stress between the clamping surface that the axial force that puts on jaw or clamping part or stress only need pay close attention to each clamping part or each clamping plate can be welcome and a need progress in the art.
Thereby a main purpose of the present invention provides a kind of improved chuck, can absorb the axial force that puts on chuck or stress and must each jaw of chuck and tool shank between any bigger clamping dynamics.
A project more of the present invention provide a kind of like this chuck, it is provided with one and is used for the standard of chuck tool shank or known axial stop, thereby guarantees the accurate axial location of tool shank in chuck.
Another purpose of the present invention provides a kind of improved chuck, owing to the stress between the tool shank of jaw and chuck the inside reduces to have quite long service life as far as possible.
Some other purpose of the present invention and advantage will partly be described among the following explanation, perhaps from explanation obviously as seen, perhaps can know by enforcement the present invention.Can being achieved and obtaining by means of the various means of in appended every claim, specifically noting and combination of projects of the present invention with advantage.
In order to reach these purposes and various uses according to the invention, a kind of machine tool collet is provided, be driven by the surface that connects that engages a chuck holder, as common in the art understand.Chuck comprises a plurality of jaws, passes longitudinal center's axis of chuck with predetermined longitudinally being installed with position relation circumferentially spaced apart around one.Each jaw has the inner surface that is parallel to central axis, thereby a plurality of jaw forms an interior diameter perforate of passing chuck, in order to hold a circular tool shank.Each jaw has outer surface, thereby a plurality of jaw forms an outer surface, in order to the surface that connects of engaging dog holder.Elastomeric material is arranged between each jaw, is used for that a plurality of jaws are remained on predetermined pass, spaced apart position and fastens.One radially inside block is formed on the interior diameter perforate the inside of chuck.Block is provided with in order to contacting a tail end face that injects the tool shank of chuck, makes to move after axial and absorb axial force or the stress that puts on each jaw so as to preventing tool shank in chuck.
In a most preferred embodiment of the present invention, block is formed by a plurality of jaws, wherein, at least one jaw comprise one be formed on interior diameter perforate the inside, perpendicular to the planar section of the respective inner surfaces of jaw, this planar section forms a tail end face institute block that leans on of tool shank.Preferably, all jaws all comprise so corresponding planar section, and all planar section collectively forms block.
In another most preferred embodiment of the present invention, chuck comprises a continuous overall diameter seal, be provided with along circumferential around the chuck outer surface, and a continuous interior diameter seal, along the interior diameter perforate the inside that circumferentially is arranged on chuck.Preferably, continuous interior and overall diameter seal all forms as one with elastomeric material.Preferably, interior and overall diameter seal all is a lips formula seal.
Preferably, each jaw also comprises and passes formed at least one perforation of each jaw.Elastomeric material extends through these perforation and forms the substantially concentric elastomeric material annulus that passes each jaw.
Further preferably, on the elastomeric material between each jaw, form some longitudinal channels.These longitudinal channels are used for increasing the compressibility of chuck and are used as coolant channel in each encapsulation scheme of chuck.
Comprise in this manual and constitute its part, each accompanying drawing of illustrating the every embodiment of the present invention is used for illustrating every principle of the present invention with explanatory note.
Fig. 1 is the partial cut-away perspective view of a kind of chuck of the present invention;
Fig. 2 is the side view cutaway drawing that is shown in the chuck of Fig. 1;
Fig. 3 is the side view cutaway drawing of chuck, specifically shows the tool shank that is held among the chuck;
Fig. 4 be the chuck that is shown in Fig. 3 along shown in the end-view got of straight line.
Describe each current most preferred embodiment of the present invention now in detail, its one or more of examples are shown among each accompanying drawing.Propose each example and be in order to illustrate the present invention, rather than restriction the present invention.In fact, the skilled person in the art it is evident that, can make various modifications and changes among the present invention and unlikelyly departs from scope and spirit of the present invention.For example, the various features that illustrates and illustrate as an embodiment part can be used among another embodiment to form another embodiment.Thereby, expectation be that the present invention has summarized these modifications and changes within the scope that is in appended every claim and equity statement thereof.It is consecutive that parts label among each figure spreads all over whole application, and same parts have same label in each figure.
Usually, wherein show a kind of chuck of the present invention 10 with reference to each figure.In the art, generally all understand, chuck 10 be by engage a chuck holder connect the surface and driven (not shown).All very for understanding the use of chuck in the chuck holder, it describes in detail for this disclosure is unnecessary in the art skilled person.
Chuck 10 comprises a plurality of jaws 12.Each jaw 12 is around the longitudinal center's axis 14 that passes chuck 10 longitudinally being installed with circumferential mode spaced apart with expection.Each jaw 12 has the inner surface 16 that is parallel to central axis 14.A plurality of chucks 12 and inner surface 16 limit an interior diameter hole of passing chuck, are used to hold a tool shank 20, shown in Fig. 3 is concrete.Each jaw 12 has outer surface 24, thereby a plurality of jaw 12 defines an outer surface 26, is used for the engaging dog holder and connects the surface.
Elastomeric material 28 such as rubber or rubber composition, is arranged between each jaw 12, is used for each jaw 12 is remained among the spaced relationship of expection.In specifically being shown in the most preferred embodiment of Fig. 2, each jaw 12 also comprises some perforation or the eyelet of making thereon 44.In this embodiment, elastomeric material is arranged between each perforation and forms the donut of some elastomeric materials 46 that pass each jaw 12 in fact.
Chuck 10 also comprises a block 30 that radially inwardly points to that is arranged on interior diameter perforate 18 the insides.Block 30 is arranged on the afterbody of chuck 10 and forms a contact surface to contact a tail end face 22 that injects the tool shank 20 of chuck, shown in Fig. 3 is concrete.In a most preferred embodiment, block 30 forms by being formed at least one at least one planar section 32 above the jaw 12, and preferably, block constitutes by being formed on all each planar sections 32 above the jaw 12.Each planar section 32 is to be formed by each surface perpendicular to each jaw 12 inner surface 22.As shown in each figure, each jaw can be included in each planar section each longitudinal component 34 32 back, that radially extend internally.This embodiment is easy to make and may be had a preference for because of each jaw 12 and chuck 10 integral body.
Such as the such class chuck of this chuck, comprise a plurality of independent jaws that held in mode spaced apart by elastomeric material, have much bigger compressibility compared with traditional dissection type steel chuck.Thereby this class chuck generally can be used for the interior diameter of certain limit, thus the tool shank that chuck can two different-diameters of adapted.Thereby planar section must radially inwardly extend to such radial position at least, so that the tool shank of the minimum diameter that designs for it for chuck forms block 30.Preferably, each planar section 32 radially inwardly extends as far as possible, but should not influence the radial arrangement of each jaw 12 around axis 14.
Specifically with reference to Fig. 3, a circular tool shank injects interior diameter perforate 18, so that the rear end face 22 of tool shank is close to block 30.Thereby in the operation of chuck, the axial force that puts on tool shank 20 is directly transmitted by each part that comprises block 30 and is absorbed.Thereby unique stress of required concern is to rotate stress between the circumferential surface of the inner surface 22 of each jaw 12 and tool shank 20.Each jaw only need be subjected to compressing to prevent the rotation of tool shank among chuck in instrument holder the inside.Axial stress between each jaw of tool shank and chuck or axially after move no longer related to the present invention.
In a most preferred embodiment of the present invention, chuck 10 comprises a continuous overall diameter seal 36 and a continuous interior diameter seal 38.Overall diameter seal 36 exceeds outer surface 26 around the outer surface 24 of each jaw 12 along circumferentially being provided with and extending radially outward on circumferentially.Interior diameter seal 38 is continuous seal parts, also radially inwardly puts in perforate in interior diameter perforate the inside along circumferentially being provided with.Preferably, interior and overall diameter seal 36,38 is all made one with elastomeric material 28 and by making with the same material of elastomeric material.Also preferably a kind of lips formula overall diameter of each seal seal 40 and a kind of lips formula interior diameter seal 42 are as shown in each figure.Interior and overall diameter design of rubber seal, structure and use have been done extensive description in my U.S. Patent No. 5,324,050, be incorporated herein by reference.
Preferably, chuck 10 also comprises each longitudinal channels 48, is formed on rear end face from chuck among the elastomeric material between each jaw 12 of interior diameter seal 38, as Fig. 3 and 4 concrete shown in.Each conduit 48 plays and increases the chuck compressibility and introduce this double action of liquid conduit as cooling agent when chuck uses with sealing state.Such as, in the time need being sent to the instrument that holds by chuck or workpiece to pressurized cooling fluid, fluid under pressure is sent to the chuck holder.Can prevent that by means of overall diameter seal 36 liquid from centering on chuck and leak, and can make liquid flow to chuck by means of each vertical passage 48.Can prevent that by means of interior diameter seal 38 cooling agent from spilling from chuck 10.Thereby the cooling agent of sending into chuck 10 is forced into and is formed on each cooling agent eyelet or the conduit that forms on the tool shank that is held by chuck.In addition, cooling agent can be from chuck 10 the insides pass chuck front end face cooling agent aperture that form and that be communicated in each longitudinal channels 48 by means of one and lead to workpiece.This embodiment has done extensive description in my U.S. Patent No. 5,405,155, also quote as a reference at this.
Skilled person in the art it is evident that, can make various modifications and changes in the present invention and unlikelyly departs from scope and spirit of the present invention.Such as, axial stop 30 can be made of a jaw 12, is perhaps preferably formed by a plurality of jaws 12.Expectation be that various modifications and the change that can make apparatus of the present invention summarized in appended every claim and equity statement thereof.
Claims (17)
1, a kind of machine tool collet is driven by the surface that connects that engages a chuck holder, and described chuck comprises:
A plurality of jaws, installed with predetermined longitudinally concerning around the longitudinal center's axis that passes described chuck with position circumferentially spaced apart, described each jaw has the inner surface that is parallel to central axis, thereby described a plurality of jaw forms an interior diameter perforate of passing described chuck, be used to hold a tool shank, described each jaw has outer surface, thereby described a plurality of jaw forms an outer surface, is used for the surface that connects of engaging dog holder;
Be arranged between described each jaw, be used for described each jaw is remained on the elastomeric material that fasten described predetermined space pass; And
One block that radially inwardly points to is formed on inside the described perforate of described chuck, and described block is provided with to such an extent that contact with a tail end face that injects the tool shank of described chuck, thereby prevents to move after tool shank vertically.
2, according to the described chuck of claim 1, wherein, described block is formed by described each jaw.
3, according to the described chuck of claim 2, wherein, be formed with a planar section at least one described jaw perpendicular to described each inner surface, described planar section forms described block.
4, according to the described chuck of claim 3, wherein, each described jaw comprises a corresponding described planar section, and described each planar section collective forms described block.
5, according to the described chuck of claim 4, wherein, described each jaw also comprises a longitudinal component that radially extends internally from the described inner surface of described planar section back.
6, according to the described chuck of claim 1, also comprise a continuous overall diameter seal, be provided with along circumferential around described outer surface, described overall diameter seal and described elastomeric material form one and extend radially outward on circumferentially and exceed the described outer surface of described each jaw, and a continuous interior diameter seal, along circumferentially being arranged on described interior diameter perforate the inside.
7, according to the described chuck of claim 6, wherein, described overall diameter seal is provided with respect to the rear end of the described chuck inside an instrument holder near described chuck, and described interior diameter seal is provided with respect to the front end of the described chuck inside an instrument holder near described chuck.
8, according to the described chuck of claim 6, wherein, described interior diameter seal comprises a pair of lip seal.
9, according to the described chuck of claim 6, wherein, described overall diameter seal comprises a pair of lip seal.
10, according to the described chuck of claim 6, wherein, described in and overall diameter seal and described elastomeric material is molded becomes one.
11, according to the described chuck of claim 1, wherein, each described chuck comprises that also at least one runs through the perforation of its formation, and described elastomeric material extends through described each perforation, so that form an elastomeric material donut that passes described each jaw basically.
12,, also comprise between described each jaw, be formed on each longitudinal channels on the described elastomeric material according to the described chuck of claim 1.
13, a kind of machine tool collet is driven by the surface that connects that engages a chuck holder, and described chuck comprises:
A plurality of jaws, installed with predetermined longitudinally concerning around the longitudinal center's axis that passes described chuck with position circumferentially spaced apart, described each jaw has the inner surface that is parallel to central axis, thereby described a plurality of jaw forms an interior diameter perforate of passing described chuck, be used to hold a tool shank, described each jaw has outer surface, thereby described a plurality of jaw forms an outer surface, is used for the surface that connects of engaging dog holder;
Be arranged between described each jaw, be used for described each jaw is remained on elastomeric material on the described predetermined location relationship;
One around the continuous overall diameter seal of described outer surface along circumferential setting, described overall diameter seal and described elastomeric material form one and extend radially outward on circumferentially and exceed the described outer surface of described each jaw, and a continuous interior diameter seal, along circumferentially being arranged on described interior diameter perforate the inside; And
One is formed on the block of the described perforate the inside of described chuck, and described block is provided with to such an extent that contact with a tail end face that injects the tool shank of described chuck, thereby prevents to move after tool shank vertically.
14, according to the described chuck of claim 13, wherein, described block is formed by described each jaw.
15, according to the described chuck of claim 13, wherein, be formed with a planar section perpendicular to described each inner surface at least one described jaw, described planar section forms described block.
16, according to the described chuck of claim 15, wherein, each described jaw comprises a corresponding described planar section, and described each planar section collective forms described block.
17, according to the described chuck of claim 16, wherein, described each jaw also comprises a longitudinal component that radially extends internally from the described inner surface of described planar section back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96190576 CN1155862A (en) | 1995-05-31 | 1996-03-28 | Machine tool collet with axial stop |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/456,064 | 1995-05-31 | ||
| CN 96190576 CN1155862A (en) | 1995-05-31 | 1996-03-28 | Machine tool collet with axial stop |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1155862A true CN1155862A (en) | 1997-07-30 |
Family
ID=5128091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96190576 Pending CN1155862A (en) | 1995-05-31 | 1996-03-28 | Machine tool collet with axial stop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1155862A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029011A (en) * | 2012-12-31 | 2013-04-10 | 河南富耐克超硬材料股份有限公司 | Clamp body |
| CN103192104A (en) * | 2013-04-01 | 2013-07-10 | 成都成量工具集团有限公司 | Anti-rotation clamp claw for fine adjustment and fine boring unit |
| CN113733475A (en) * | 2021-07-28 | 2021-12-03 | 漳州市芗城新辉塑胶有限公司 | High-performance turnover box forming preparation method |
-
1996
- 1996-03-28 CN CN 96190576 patent/CN1155862A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029011A (en) * | 2012-12-31 | 2013-04-10 | 河南富耐克超硬材料股份有限公司 | Clamp body |
| CN103192104A (en) * | 2013-04-01 | 2013-07-10 | 成都成量工具集团有限公司 | Anti-rotation clamp claw for fine adjustment and fine boring unit |
| CN103192104B (en) * | 2013-04-01 | 2016-05-04 | 成都成量工具集团有限公司 | Fine setting right boring unit anti-rotation claw |
| CN113733475A (en) * | 2021-07-28 | 2021-12-03 | 漳州市芗城新辉塑胶有限公司 | High-performance turnover box forming preparation method |
| CN113733475B (en) * | 2021-07-28 | 2023-08-04 | 漳州市芗城新辉塑胶有限公司 | Forming preparation method of high-performance turnover box |
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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 | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |