CN102886704A - Elastic taper shank structure and machine tool - Google Patents
Elastic taper shank structure and machine tool Download PDFInfo
- Publication number
- CN102886704A CN102886704A CN2012103620967A CN201210362096A CN102886704A CN 102886704 A CN102886704 A CN 102886704A CN 2012103620967 A CN2012103620967 A CN 2012103620967A CN 201210362096 A CN201210362096 A CN 201210362096A CN 102886704 A CN102886704 A CN 102886704A
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- taper shank
- hole
- connector
- elasticity
- bar section
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Abstract
The invention relates to the technical field of machine tools, and discloses an elastic taper shank structure and a machine tool. The elastic taper shank structure comprises a connecting body, a connecting piece and a taper shank, wherein the bottom of the taper shank is longitudinally provided with an installing through hole, the connecting piece comprises a rod part and a head part fixedly arranged at one end of the rod part, the other end of the rod part penetrates through the installing through hole and is fixed on the top of the connecting body, and a radial moving gas is arranged between the rod part and the inner wall of the installing through hole. With the preferred embodiment of the invention, the taper shank has certain elasticity in the axial and radial directions, so that a great contact area is maintained as far as possible between the taper surface and the inner wall of a taper hole of a spindle, the taper surface is prevented from being damaged due to excessive local stress, and the service life of the taper shank is prolonged. The elastic taper shank structure not only has simple structure but also has good machining technique.
Description
Technical field
The present invention relates to the machine tool technology field, particularly a kind of elasticity taper shank structure and lathe.
Background technology
Along with the high speed development of China's mechanical industry, market is more and more higher to the processing request of machine tool.Particularly gantry, boring and milling machine have begun frequently to be equipped with various accessory head equipment, thereby realize the processing of clamped one time multiaspect, improve fast working (machining) efficiency.The centralized positioning of accessory head and axial tightening often still use or keep the taper shank structure, and when the automatic switchover accessory head, can taper shank correctly cooperate with tapered bore of machine tool spindle, directly has influence on the installation reliability of accessory head.
At present, the normal a kind of method that adopts is that the boss structure with the accessory head power transmission shaft is limited in the intracavity space of taper shank, to realize that taper shank can be with respect to accessory head power transmission shaft axial stretching certain amplitude.But in this scheme, because taper shank only has axial elasticity, when taper shank and spindle taper hole were not on same axis, taper shank and spindle taper hole made conical surface local pressure excessive loose contact, easily are damaged; In addition, in this scheme, the complex structure of accessory head power transmission shaft, processing technology is had relatively high expectations; In addition, the structure of this scheme is comparatively complicated.
Therefore, how improving for existing accessory head taper shank structure, use needs in order to more adapt to, is the technical problem that those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the present invention is intended to propose a kind of elasticity taper shank structure and lathe, in use holds flimsy problem because conical surface local pressure is excessive to solve existing accessory head taper shank structure, in addition, this elasticity taper shank organization plan is simple, and processing technology is good.
On the one hand, the invention provides a kind of elasticity taper shank structure, described elasticity taper shank structure comprises connector, connector and taper shank; The bottom of described taper shank is vertically arranged with the installation through hole, the head that described connector comprises bar section and is fixedly arranged on this bar section one end, the other end of described bar section passes the top that described installation through hole is fixed in described connector, has the free gap between the inwall of described bar section and described installation through hole.
Further, described elasticity taper shank structure also comprises elastic component; Bar minister degree between the top of described connector and the described head is greater than the length of described installation through hole; Described elastic component is arranged between described connector and the described taper shank, is used for described taper shank is remained on the state of holding out against.
Further, one in the bottom of described taper shank and the top of described connector also is vertically arranged with pilot hole, and another also is installed with guide finger; Described guide finger inserts in the described pilot hole, and the gap between the inwall of described guide finger and described pilot hole is less than described free gap.
Further, described pilot hole and described guide finger are a plurality of, and are evenly arranged around described bar section.
Further, described pilot hole and described guide finger are six.
Further, described elastic component is spring; The bottom of described taper shank is provided with the first annular groove around the position of described bar section, the top of described connector is provided with the second annular groove around the position of described bar section, and described spring housing is located at the bar section between described the first annular groove top and described the second annular groove bottom.
Further, the top of described taper shank is provided with for the first screwed hole that connects blind rivet, and the bottom of described the first screwed hole is disposed with head accommodation hole and the described installation through hole that communicates towards the direction of described taper shank bottom.
Further, described connector is bolt, and the top of described connector is provided with the second screwed hole, and the end of thread of described bolt is connected in described the second screwed hole.
Further, described connector is disk-like structure.
On the other hand, the present invention also provides a kind of lathe, and the accessory head of described lathe is provided with above-mentioned each described elasticity taper shank structure.
A kind of elasticity taper shank structure provided by the invention in use, can make the taper shank that is connected with blind rivet move radially certain distance with respect to the connector that is connected with the accessory head power transmission shaft, be that taper shank has certain elasticity diametrically, thereby when the taper hole decentraction of taper shank and machine tool chief axis or accessory head are excessively located, the conical surface (outer surface of taper shank) and taper hole inwall will keep larger contact area as far as possible, avoid conical surface local pressure excessive and go to pot, improved the service life of taper shank, in addition, the present invention need not to adopt complicated accessory head transmission shaft structure, not only simple in structure, and processing technology is good.In a kind of more specifically scheme, elasticity taper shank structure of the present invention has further improved the stressed effect of the conical surface axially and directly upwards all having certain elasticity.At another kind more specifically in the scheme, also provide guide effect by guide finger for moving axially of taper shank and the radially movable amplitude of taper shank is limited, the further like this stability that increases elasticity taper shank structure has also further reduced the requirement of processing technology.
A kind of lathe provided by the invention is provided with above-mentioned elasticity taper shank structure at its accessory head, because above-mentioned elasticity taper shank structure has above-mentioned technique effect, therefore, this lathe also has corresponding technique effect.
Description of drawings
The accompanying drawing that consists of a part of the present invention is used to provide a further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
The structural representation of a kind of elasticity taper shank structure that Fig. 1 provides for the embodiment of the invention.
Symbol description:
1 blind rivet
2 taper shanks
3 connectors
4 elastic components
5 guide fingers
6 connectors
21 first screwed holes
22 head accommodation holes
23 install through hole
24 first annular grooves
25 pilot holes
The distance of 26 taper shanks and connector
61 second screwed holes
62 second annular grooves
The specific embodiment
Should be pointed out that in this part that to the description of concrete structure and description order only be explanation to specific embodiment, should not be considered as that protection scope of the present invention is had any restriction.In addition, under the situation of not conflicting, embodiment and the feature among the embodiment in this part can make up mutually.
See also Fig. 1, below in conjunction with accompanying drawing the embodiment of the invention is elaborated.
As shown in the figure, the elasticity taper shank structure of this embodiment mainly comprises taper shank 2, connector 3, elastic component 4, guide finger 5 and connector 6 etc.
Wherein, the top of taper shank 2 vertical (axially) is provided with the first screwed hole 21, be used in use the bottom threaded engagement with blind rivet 1, be vertically arranged with successively the head accommodation hole 22 that communicates between the first screwed hole 21 bottoms to taper shank 2 bottoms and through hole 23 is installed; The head that connector 3 comprises bar section and is fixedly arranged on this bar section one end, the other end of this bar section is fixed in the top of connector 6, taper shank 2 is sheathed in the bar section between connector 6 and the described head movably by through hole 23 is installed, be that taper shank 2 can move up and down between the top of connector 6 and head along the direction of bar section, and has the free gap between the inwall of this bar section and installation through hole 23, the sectional dimension that the sectional dimension of through hole 23 is a bit larger tham this bar section namely is installed, taper shank 2 can be with respect to this bar section towards moving radially certain distance, and this free gap can arrange according to concrete use needs; In addition, when the distance 26 between taper shank 2 and the connector 6 reaches maximum, the head of connector 3 is in the head accommodation hole 22, the sectional dimension of connector 3 heads is greater than the sectional dimension that through hole 23 is installed, and the gap between the inwall of connector 3 heads and head accommodation hole 22 is equal to or greater than described free gap.
Elastic component 4 is arranged between the top of the bottom of taper shank 2 and connector 6, is used for taper shank 2 is remained on the state of holding out against, and namely is used for the distance 26 between taper shank 2 and the connector 6 is remained on maximum rating; Preferably, elastic component 4 is spring, correspondingly, the bottom of taper shank 2 is provided with the first annular groove 24 around the position of described bar section, the top of connector 6 is provided with the second annular groove 62 around the position of described bar section, the top of the first annular groove 24 forms the first limited step with installation through hole 23, the installation site of the bottom of the second annular groove 62 and described bar section forms the second limited step, spring housing is located in the bar section between the first annular groove 24 tops and the second annular groove 62 bottoms, and the top of spring is held in the first limited step, the bottom is held in the second limited step, under the effect of spring, the distance 26 between the top of the bottom of taper shank 2 and connector 6 remains on maximum rating.
Guide finger 5 vertically is fixedly arranged on the top of connector 6, the bottom of taper shank 2 is vertically arranged with pilot hole 25, guide finger 5 inserts in the pilot hole 25, the gap of guide finger 5 and pilot hole 25 inwalls is less than described free gap, preferably, the number of guide finger 5 and pilot hole 25 is a plurality of, and is evenly arranged around described bar section, more preferably, the number of guide finger 5 and pilot hole 25 is six.
The following describes the operation principle of above-mentioned elasticity taper shank structure:
In use, make the top of taper shank 2 towards the taper hole of main shaft, blind rivet 1 is connected in the first screwed hole 21 of taper shank 2, connector 6 and accessory head (power transmission shaft) is fixing, the control Chief axis moves towards taper shank 2 and connector 6, until the end face of ram end face and connector 6 is fitted, then lift blind rivet 1 by pulling claw, the conical surface of taper shank 2 and the inwall of spindle taper hole are fitted, in this process, because taper shank 2 has certain axial elasticity and radial elastic with respect to connector 6, when the taper hole decentraction of taper shank 2 and machine tool chief axis or accessory head are excessively located, the conical surface (outer surface of taper shank 2) and taper hole inwall will keep larger contact area as far as possible, in addition, and in this process, guide finger also will provide guide effect for moving axially of taper shank, and the radially movable amplitude of taper shank limited, avoid the radially movable amplitude of taper shank 2 excessive, to guarantee the installation reliability of taper shank structure.
In above-described embodiment, preferably, connector 3 is bolt, correspondingly, offer the second screwed hole 61 on the top of connector 6, the end of thread of bolt is connected in this second screwed hole 61, when the distance 26 between taper shank 2 and connector 6 was maximum, the head of bolt was arranged in head accommodation hole 22; In this case, the assemble sequence of whole elasticity taper shank structure is as follows: through the first screwed hole 21 bolt is put into first, making its end of thread pass the rear bottom surfaces from taper shank 2 such as head accommodation hole 22, installation through hole 23 stretches out, then with spring housing stretching out on the screw rod at bolt, make guide finger 5 alignment guide holes 25, at last the end of thread of bolt is tightened against in the second screwed hole 61 on the connector 6.
In above-described embodiment and the preferred version thereof, connector 6 is preferably disk-like structure, so that install with the ram end face.
In above-described embodiment and the optimal way thereof, through hole 23 and head accommodation hole 22 are installed to be run through between the bottom surface that is arranged at the first screwed hole 21 and taper shank 2, but in other embodiments, through hole 23 and head accommodation hole 22 are installed also can vertically be run through and be arranged on other positions, as long as can realize function of the present invention, further, head accommodation hole 22 also can be according to being omitted.
Among the above-mentioned various embodiment, guide finger 5 is arranged on the connector 6, and pilot hole 25 is arranged on the taper shank 2, in other embodiment examples, also pilot hole 25 can be arranged on the connector 6, and guide finger 5 is arranged on the taper shank 2, so also can realize corresponding function; In addition, guide finger 5 can be for cylindrical, and corresponding, pilot hole 25 is cylindrical hole, and guide finger 5 and pilot hole 25 also can be other shapes.
Among the above-mentioned various embodiment, elasticity taper shank structure has axial elasticity and radial elastic simultaneously, but under other situations, as long as the function with radial elastic is namely within protection scope of the present invention, no matter can taper shank 2 move axially with respect to connector 6.
To sum up, a kind of elasticity taper shank structure that the preferred embodiment of the present invention provides makes taper shank have simultaneously axial elasticity and radial elastic, has avoided like this that the conical surface goes to pot because local pressure is excessive in the installation process, has improved the service life of taper shank; In addition, compared with prior art, need not to adopt complicated accessory head transmission shaft structure, simple in structure, processing technology is good; In addition, also provide guide effect by guide finger for moving axially of taper shank and the radially movable amplitude of taper shank is limited, improved so integrally-built installation reliability, also further reduced the requirement of processing technology.
The embodiment of the invention also provides a kind of lathe, the accessory head of this lathe is provided with the described elasticity taper shank of above-described embodiment structure, because above-mentioned elasticity taper shank structure has above-mentioned technique effect, therefore, this project machinery also should possess corresponding technique effect, the specific implementation process of its appropriate section is similar to the above embodiments, does not hereby give unnecessary details.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. elasticity taper shank structure is characterized in that:
Described elasticity taper shank structure comprises connector (6), connector (3) and taper shank (2);
The bottom of described taper shank (2) is vertically arranged with installs through hole (23), the head that described connector (3) comprises bar section and is fixedly arranged on this bar section one end, the other end of described bar section passes the top that described installation through hole (23) is fixed in described connector (6), has the free gap between the inwall of described bar section and described installation through hole (23).
2. elasticity taper shank structure as claimed in claim 1 is characterized in that:
Described elasticity taper shank structure also comprises elastic component (4);
The top of described connector (6) and the bar minister degree between the described head are greater than the length of described installation through hole (23);
Described elastic component (4) is arranged between described connector (6) and the described taper shank (2), is used for described taper shank (2) is remained on the state of holding out against.
3. elasticity taper shank structure as claimed in claim 2 is characterized in that:
One in the top of the bottom of described taper shank (2) and described connector (6) also is vertically arranged with pilot hole (25), and another also is installed with guide finger (5);
Described guide finger (5) inserts in the described pilot hole (25), and the gap between the inwall of described guide finger (5) and described pilot hole (25) is less than described free gap.
4. elasticity taper shank structure as claimed in claim 3 is characterized in that: described pilot hole (25) and described guide finger (5) be for a plurality of, and be evenly arranged around described bar section.
5. elasticity taper shank structure as claimed in claim 4, it is characterized in that: described pilot hole (25) and described guide finger (5) are six.
6. elasticity taper shank structure as claimed in claim 2 is characterized in that:
Described elastic component (4) is spring;
The bottom of described taper shank (2) is provided with the first annular groove (24) around the position of described bar section, the top of described connector (6) is provided with the second annular groove (62) around the position of described bar section, and described spring housing is located at the bar section between described the first annular groove top and described the second annular groove bottom.
7. such as each described elasticity taper shank structure of claim 1 to 6, it is characterized in that: the top of described taper shank (2) is provided with for the first screwed hole (21) that connects blind rivet (1), and the bottom of described the first screwed hole (21) is disposed with head accommodation hole (22) and the described installation through hole (23) that communicates towards the direction of described taper shank (2) bottom.
8. such as each described elasticity taper shank structure of claim 1 to 6, it is characterized in that: described connector (3) is bolt, the top of described connector (6) is provided with the second screwed hole (61), and the end of thread of described bolt is connected in described the second screwed hole (61).
9. such as each described elasticity taper shank structure of claim 1 to 5, it is characterized in that: described connector (6) is disk-like structure.
10. lathe, it is characterized in that: the accessory head of described lathe is provided with each described elasticity taper shank structure of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103620967A CN102886704A (en) | 2012-09-25 | 2012-09-25 | Elastic taper shank structure and machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103620967A CN102886704A (en) | 2012-09-25 | 2012-09-25 | Elastic taper shank structure and machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102886704A true CN102886704A (en) | 2013-01-23 |
Family
ID=47530488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103620967A Pending CN102886704A (en) | 2012-09-25 | 2012-09-25 | Elastic taper shank structure and machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102886704A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955083A (en) * | 2018-01-19 | 2019-07-02 | 苏州遇之合工装夹具有限公司 | Elastic buffer locating piece |
| CN114918853A (en) * | 2022-04-14 | 2022-08-19 | 东风柳州汽车有限公司 | Auxiliary clamp for connecting flange plate of automobile bridge test bed |
| CN115319513A (en) * | 2022-08-09 | 2022-11-11 | 通用技术齐齐哈尔二机床有限责任公司 | Tool holder ejection device in claw pulling mechanism |
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| US4642005A (en) * | 1983-09-14 | 1987-02-10 | Fuji Seiko Limited | Holder for rotary cutting tools |
| JP2001009656A (en) * | 1999-06-24 | 2001-01-16 | Fuji Seiko Ltd | Two-face constraint type tool holder |
| CN101559565A (en) * | 2009-04-24 | 2009-10-21 | 无锡桥联数控机床有限公司 | Installing structure of taper shank with attached cutting head |
| CN201889516U (en) * | 2010-11-30 | 2011-07-06 | 常州市泽冠机械制造有限公司 | Milling head locating pin mechanism of automatic numerical control machine tool accessory |
| CN102357827A (en) * | 2011-09-26 | 2012-02-22 | 上海三一精机有限公司 | Accessory head bank structure and numerical control machine with same |
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2012
- 2012-09-25 CN CN2012103620967A patent/CN102886704A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4642005A (en) * | 1983-09-14 | 1987-02-10 | Fuji Seiko Limited | Holder for rotary cutting tools |
| JP2001009656A (en) * | 1999-06-24 | 2001-01-16 | Fuji Seiko Ltd | Two-face constraint type tool holder |
| CN101559565A (en) * | 2009-04-24 | 2009-10-21 | 无锡桥联数控机床有限公司 | Installing structure of taper shank with attached cutting head |
| CN201889516U (en) * | 2010-11-30 | 2011-07-06 | 常州市泽冠机械制造有限公司 | Milling head locating pin mechanism of automatic numerical control machine tool accessory |
| CN102357827A (en) * | 2011-09-26 | 2012-02-22 | 上海三一精机有限公司 | Accessory head bank structure and numerical control machine with same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955083A (en) * | 2018-01-19 | 2019-07-02 | 苏州遇之合工装夹具有限公司 | Elastic buffer locating piece |
| CN114918853A (en) * | 2022-04-14 | 2022-08-19 | 东风柳州汽车有限公司 | Auxiliary clamp for connecting flange plate of automobile bridge test bed |
| CN114918853B (en) * | 2022-04-14 | 2023-07-07 | 东风柳州汽车有限公司 | Auxiliary fixture for flange plate connection of automobile bridge test bed |
| CN115319513A (en) * | 2022-08-09 | 2022-11-11 | 通用技术齐齐哈尔二机床有限责任公司 | Tool holder ejection device in claw pulling mechanism |
| CN115319513B (en) * | 2022-08-09 | 2023-11-28 | 通用技术齐齐哈尔二机床有限责任公司 | Tool holder ejection device in jaw pulling mechanism |
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Effective date of abandoning: 20130123 |
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