CN102847967A - Chuck for machine tool - Google Patents
Chuck for machine tool Download PDFInfo
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- CN102847967A CN102847967A CN2012102473195A CN201210247319A CN102847967A CN 102847967 A CN102847967 A CN 102847967A CN 2012102473195 A CN2012102473195 A CN 2012102473195A CN 201210247319 A CN201210247319 A CN 201210247319A CN 102847967 A CN102847967 A CN 102847967A
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- piston
- chuck
- end cap
- machine tool
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Abstract
The invention relates to a chuck for a machine tool. The chuck is characterized by comprising a piston and an end cover, wherein the end cover is arranged on the front portion of the piston, a plurality of springs are matched in an elastic mode between the outer end face of the piston and the inner end face of the end cover, springs are applicable to production of elasticity when the outer end face of the piston and the inner end face of the end cover are located at adjacent ends, and/or springs are applicable to production of tension when the outer end face of the piston and the inner end face of the end cover are located at ends which are far away from each other. When a workpiece is clamped, the piston is displaced towards the end cover until the piston is adjacent to the end cover, at that time, springs are in a compressed state and the elasticity is produced, and the elasticity buffers the displacement speed of the piston to a certain extent, so that the speed is low when clamping jaws clamp the workpiece, the workpiece is prevented from being deformed due to clamping, and simultaneously; and when the chuck releases the workpiece, the elasticity of springs is applicable to improvement of the displacement speed of the piston, so that the releasing speed of the workpiece is accelerated, and the production efficiency for processing of the workpiece is improved.
Description
Technical field
The present invention relates to a kind of chuck of machine tool, specifically a kind of lathe is with pneumatic or hydraulically powered chuck.
Background technology
Existing chuck of machine tool comprises cylinder body, is located at piston and a plurality of power voussoir with claw in the cylinder body, end cap fixing with the cylinder body front opening on.The end cap of each power voussoir and cylinder body is slidingly matched, form the first airtight chamber between piston rear portion and the cylinder body, form the second airtight chamber between piston front portion and the end cap, the piston peripheral distribution has protruding wedge, has the skewed slot that is slidingly matched with protruding wedge on the power voussoir.The weak point of above-mentioned air spider is: owing to adopt pneumatic or hydraulic-driven, when described power voussoir drove described claw clamping work pieces, the power of momentary action on described workpiece was larger, easily caused workpiece deformation.
Summary of the invention
The technical problem to be solved in the present invention provide a kind of simple in structure, can prevent the chuck of machine tool that workpiece is deformed.
For solving the problems of the technologies described above, chuck of machine tool provided by the invention comprises piston 1 and is located at the end cap 12 of this piston 1 front portion, it is characterized in that: resilient engagement has a plurality of springs 15 between the inner face of the outer face of this piston 1 and end cap 12; This spring is suitable for when the inner face of the outer face of described piston 1 and end cap 12 is in abutting end each other producing elasticity, and/or when the inner face of the outer face of described piston 1 and end cap 12 is in away from end each other the generation pulling force.
As a kind of scheme of optimization, the inner face of end cap 12 is distributed be used to the spring base 13-1 that described spring 15 is set.
The two ends of each spring 15 are separately fixed on the inner face of the outer face of described piston 1 and end cap 12.
Described chuck also comprises power voussoir 4, and this power voussoir 4 is provided with an end and does not mill the little T shape grain of wearing, and is out of shape because of stressed to prevent little T shape grain, and the sliding effect of power voussoir 4 is located in impact.
The bottom periphery of described piston is provided with a plurality of sealing ring 1-5 (such as Fig. 2), so that first, second chamber isolation, prevents string oil or collaborates, and then can avoid because going here and there oil or collaborate and make the inhomogeneous machining accuracy that affects of chuck clamping force.
The protruding wedge of described piston is provided with a radially-arranged piston lubrication hole and the king's font trapped fuel grain 2-1 (such as Figure 17) that is located on the described protruding wedge lateral surface, is conducive to lube pistons, reduces wearing and tearing, prolongs the service life of chuck.
Described chuck also comprises cylinder body, is provided with internal thread (Figure 11) in the center through hole of cylinder body, and this internal thread and a feeder cooperating can be realized long material continuous feed fine finishining and the fine finishining of short material.
Such as Fig. 5, in a plurality of oil grains of being provided with of power voussoir 4 and oiling grain, cross oil filler point, play the effect of dustproof, trapped fuel and reduction wearing and tearing, the service life of prolongation power voussoir 4.
The method of work of above-mentioned chuck of machine tool, comprise: when the outer face of the inner face of piston and the first chamber air inlet between the cylinder body or oil-feed, piston and the second chamber exhaust between the end cap or oil extraction, piston to outer displacement and make protruding wedge on the piston and the inclined hole of power voussoir between produce active force, the power voussoir is moved radially to the center of chuck; In this process, described spring produces gradually elastic force and slows down the velocity of displacement of piston, simultaneously clamping work pieces; When needs unclamp workpiece, described the first chamber exhaust or oil extraction, described the second chamber air inlet or oil-feed, the elastic force of spring cooperates the air pressure official post piston fast offset between first, second chamber, thereby unclamps fast workpiece; When the inner face of the outer face of described piston and end cap will arrive respectively away from end, described spring produced gradually pulling force and slows down the velocity of displacement of piston.
The technique effect that the present invention has: chuck of machine tool of the present invention is when chuck begins clamping work pieces, described piston 1 is to end cap 12 displacements, until piston 1 is adjacent with end cap 12, this moment be in compressive state and produce elastic force at spring, the velocity of displacement of this elastic force piston produces certain buffering, and then speed is less when making described claw clamping work pieces, prevents that workpiece is deformed, and can reduce noise simultaneously; When chuck need to unclamp workpiece, the elastic force of spring was suitable for improving the velocity of displacement of piston, and then accelerated to discharge the speed of workpiece, and then improved the production efficiency of workpiece processing.Be about to be in when being totally released state at chuck, described piston 1 is moved to the position away from end cap 12, and the pulling force that spring produces is suitable for avoiding the outer face of described piston 1 and the inner face generation Fast Collision of end cap 12, and the while can be reduced noise.Therefore, this chuck have simple in structure, service life long, can prevent the characteristics that workpiece is deformed.
Description of drawings
For content of the present invention is more likely to be clearly understood, below the specific embodiment and by reference to the accompanying drawings of basis, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the piston in the chuck of machine tool among the embodiment;
Fig. 2 is the A-A sectional structure chart of the described piston among Fig. 1;
Fig. 3 is the enlarged drawing of the local B among Fig. 1;
Fig. 4 is the end face structure schematic diagram of the power voussoir in the chuck of machine tool among the embodiment;
Fig. 5 is the top view of the power voussoir among Fig. 4;
Fig. 6 is the cross section view of the power voussoir among Fig. 4;
Fig. 7 is the sectional structure chart of automation hollow chuck, wherein: dust excluding plate (7-1) the first chamber (7-2), the second chamber (7-3), cylinder body (11), T shape piece (9), power voussoir (4), claw (10-1), spring (15);
Fig. 8 is the right view of the chuck among Fig. 7;
Fig. 9 is the longitudinal profile structural representation of the T shape piece in the described chuck;
Figure 10 is the cross-sectional view of the claw of described chuck;
Figure 11 is the cross-sectional view of the tapped cylinder body in the described chuck;
Figure 12 is the top view of the end cap in the described chuck;
Figure 13, Figure 14 are the sectional structure charts of the end cap in the described chuck, wherein: power voussoir T shape grain (14-1);
Figure 15 is the sectional structure chart of the solid chuck of automation;
Figure 16 is the horizontal section structural representation of the little T shape piece in the described chuck;
Figure 17 is that the local A of Fig. 2 is to view.
The specific embodiment
The present invention is described in detail below in conjunction with drawings and Examples:
The chuck of machine tool of present embodiment comprises: cylinder body 11, be located at piston 1 in this cylinder body 11, be located at these cylinder body 11 front ends end cap 12, be located at a plurality of power voussoirs 4 on these end cap 12 front end faces, be located at the little T shape piece 9 in the little T shape grain on the front end face of each power voussoir 4, the claw 10-1 that links to each other with the front end face of this little T shape piece 9.
Be symmetrically distributed with two with epirelief wedge 1-1 with the center of circle on the described piston 1, each protruding wedge 1-1 cooperates with inclined hole 6-2 on the power voussoir 4 respectively.The external arc 5-4 of the external arc 1-2 of protruding wedge 1-1 and power voussoir inclined hole is slidingly matched, and the interior circular arc 1-3 of protruding wedge and the interior circular arc 5-3 of power voussoir inclined hole are slidingly matched.
Described power voussoir 4 is provided with inlet oil filler point 6-1 outwardly, and this oil filler point 6-1 communicates with described piston lubrication hole 1-6 and the poor 5-1 that refuels.
The central authorities of described power voussoir 4 are provided with little T shape grain 4-2, and the end of this little T shape grain 4-2 does not mill to be worn; To prevent that little T shape grain is out of shape because of stressed, power voussoir 4 sliding effects are located in impact.
The front end face of power voussoir 4 and be provided with sawtooth 4-1 in the both sides of described little T shape grain 4-2, each sawtooth 4-1 matches with the medial surface of soft pawl 9.
The oil filler point 5-1 that the end face that is adjacent to described little T shape grain 4-2 bottom of power voussoir 4 is provided with oiling grain 5-2 and is communicated with described oil filler point 6-1, the external port of this oil filler point 5-1 is among the oiling grain 5-2.
Resilient engagement has a plurality of springs 15 between the inner face of the outer face of this piston 1 and end cap 12; This spring is suitable for when the inner face of the outer face of described piston 1 and end cap 12 is in abutting end each other producing elasticity, and/or when the inner face of the outer face of described piston 1 and end cap 12 is in away from end each other the generation pulling force.
When chuck begins clamping work pieces, described piston 1 is to end cap 12 displacements, until piston 1 is adjacent with end cap 12, this moment be in compressive state and produce elastic force at spring, the velocity of displacement of this elastic force piston produces certain buffering, and then speed is less when making described claw clamping work pieces, prevents that workpiece is deformed, and can reduce noise simultaneously; When chuck need to unclamp workpiece, the elastic force of spring was suitable for improving the velocity of displacement of piston, and then accelerated to discharge the speed of workpiece, and then improved the production efficiency of workpiece processing.Be about to be in when being totally released state at chuck, described piston 1 is moved to the position away from end cap 12, and the pulling force that spring produces is suitable for avoiding the outer face of described piston 1 and the inner face generation Fast Collision of end cap 12, and the while can be reduced noise.
The two ends of each spring 15 are separately fixed on the inner face of the outer face of described piston 1 and end cap 12.The inner face of end cap 12 is distributed be used to the spring base 13-1 that described spring 15 is set.
The bottom periphery of described piston is provided with a plurality of sealing rings, so that first, second chamber isolation, prevents string oil or collaborates, and then can avoid because going here and there oil or collaborate and make the inhomogeneous machining accuracy that affects of chuck clamping force.
The protruding wedge of described piston is provided with a radially-arranged piston lubrication hole 1-6 and the king's font trapped fuel grain 2-1 (such as Figure 17) that is located on the described protruding wedge lateral surface, is conducive to lube pistons, reduces wearing and tearing, prolongs the service life of chuck.
Described chuck also comprises cylinder body, is provided with internal thread 11-2 in the center through hole of cylinder body, and this internal thread and a feeder cooperating can be realized long material continuous feed fine finishining and the fine finishining of short material.
Such as Fig. 5, be provided with the poor 6-3 of a plurality of oil and oiling grain, cross oil filler point at power voussoir 4, play the effect of dustproof, trapped fuel and reduction wearing and tearing, prolong the service life of power voussoir 4.
Take pneumatic as example, the method of work of above-mentioned chuck of machine tool, comprise: when the outer face of the inner face of piston and the first chamber air inlet between the cylinder body, piston and the second chamber exhaust between the end cap, piston to outer displacement and make protruding wedge on the piston and the inclined hole of power voussoir between produce active force, the power voussoir is moved radially to the center of chuck; In this process, described spring produces gradually elastic force and slows down the velocity of displacement of piston, simultaneously clamping work pieces; When needs unclamp workpiece, described the first chamber exhaust, described the second chamber air inlet, the elastic force of spring cooperates the air pressure official post piston fast offset between first, second chamber, thereby unclamps fast workpiece; When the inner face of the outer face of described piston and end cap will arrive respectively away from end, described spring produced gradually pulling force and slows down the velocity of displacement of piston.
Obviously, above-described embodiment only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all embodiments exhaustive.And these belong to apparent variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (8)
1. chuck of machine tool is characterized in that comprising: piston and be located at the end cap of this piston front portion is characterized in that: resilient engagement has a plurality of springs between the inner face of the outer face of this piston and end cap; This spring is suitable for when the inner face of the outer face of described piston and end cap is in abutting end each other producing elasticity, and/or when the inner face of the outer face of described piston and end cap is in away from end each other the generation pulling force.
2. chuck of machine tool according to claim 1, it is characterized in that: the inner face of described end cap is distributed be used to the spring base that described spring is set.
3. chuck of machine tool according to claim 1 is characterized in that: the two ends of each spring are separately fixed on the inner face of the outer face of described piston and end cap.
4. described chuck of machine tool one of according to claim 1-3, it is characterized in that: described chuck also comprises the power voussoir, this power voussoir is provided with an end and does not mill the little T shape grain of wearing.
5. chuck of machine tool according to claim 1, it is characterized in that: the bottom periphery of described piston is provided with a plurality of sealing rings.
6. described chuck of machine tool one of according to claim 1-3 is characterized in that: the protruding wedge of described piston is provided with a radially-arranged piston lubrication hole and is located at king's font trapped fuel grain on the described protruding wedge lateral surface.
7. described chuck of machine tool one of according to claim 1-3, it is characterized in that: described chuck also comprises cylinder body, is provided with internal thread in the center through hole of cylinder body
8. the method for work of a chuck of machine tool claimed in claim 1 is characterized in that comprising:
When the outer face of the inner face of piston and the first chamber air inlet between the cylinder body or oil-feed, piston and the second chamber exhaust between the end cap or oil extraction, piston to outer displacement and make protruding wedge on the piston and the inclined hole of power voussoir between produce active force, the power voussoir is moved radially to the center of chuck; In this process, described spring produces gradually elastic force and slows down the velocity of displacement of piston, simultaneously clamping work pieces;
When needs unclamp workpiece, described the first chamber exhaust or oil extraction, described the second chamber air inlet or oil-feed, the elastic force of spring cooperates the air pressure official post piston fast offset between first, second chamber, thereby unclamps fast workpiece;
When the inner face of the outer face of described piston and end cap will arrive respectively away from end, described spring produced gradually pulling force and slows down the velocity of displacement of piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102473195A CN102847967A (en) | 2012-07-18 | 2012-07-18 | Chuck for machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102473195A CN102847967A (en) | 2012-07-18 | 2012-07-18 | Chuck for machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102847967A true CN102847967A (en) | 2013-01-02 |
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ID=47395169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102473195A Pending CN102847967A (en) | 2012-07-18 | 2012-07-18 | Chuck for machine tool |
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| Country | Link |
|---|---|
| CN (1) | CN102847967A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028793A (en) * | 2014-05-30 | 2014-09-10 | 浙江乐客来机械有限公司 | Lathe chuck |
| CN106112014A (en) * | 2016-08-31 | 2016-11-16 | 常州市科协减速机制造有限公司 | A kind of processing unit (plant) ensureing the depth of parallelism and perpendicularity |
| CN106112040A (en) * | 2016-06-17 | 2016-11-16 | 上海锐铎自动化有限公司 | Electrically chuck |
| CN111673501A (en) * | 2020-06-17 | 2020-09-18 | 贵州工程应用技术学院 | Clamp with damping function for precision machine tool |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5326114A (en) * | 1992-04-08 | 1994-07-05 | Cincinnati Milacron, Inc. | Quickly interchangeable chuck with mechanical power assist clamping capabilities |
| US5961261A (en) * | 1996-09-09 | 1999-10-05 | Stark; Emil | Clamping cylinder for pulling in a pull-in nipple, a respective pull-in nipple and a clamp system, for use with flying chips |
| CN201076923Y (en) * | 2007-07-18 | 2008-06-25 | 牟燕云 | Highly effective pneumatic chuck |
| WO2010013877A1 (en) * | 2008-07-28 | 2010-02-04 | Samchully Machinery Co., Ltd. | Hydraulic chuck |
| CN202049020U (en) * | 2011-04-11 | 2011-11-23 | 安徽维嘉星火动平衡制造有限公司 | Clamping jaw device for holes of dynamic balancer |
| CN202726098U (en) * | 2012-07-18 | 2013-02-13 | 李广法 | Chuck for machine tool |
-
2012
- 2012-07-18 CN CN2012102473195A patent/CN102847967A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5326114A (en) * | 1992-04-08 | 1994-07-05 | Cincinnati Milacron, Inc. | Quickly interchangeable chuck with mechanical power assist clamping capabilities |
| US5961261A (en) * | 1996-09-09 | 1999-10-05 | Stark; Emil | Clamping cylinder for pulling in a pull-in nipple, a respective pull-in nipple and a clamp system, for use with flying chips |
| CN201076923Y (en) * | 2007-07-18 | 2008-06-25 | 牟燕云 | Highly effective pneumatic chuck |
| WO2010013877A1 (en) * | 2008-07-28 | 2010-02-04 | Samchully Machinery Co., Ltd. | Hydraulic chuck |
| CN202049020U (en) * | 2011-04-11 | 2011-11-23 | 安徽维嘉星火动平衡制造有限公司 | Clamping jaw device for holes of dynamic balancer |
| CN202726098U (en) * | 2012-07-18 | 2013-02-13 | 李广法 | Chuck for machine tool |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028793A (en) * | 2014-05-30 | 2014-09-10 | 浙江乐客来机械有限公司 | Lathe chuck |
| CN106112040A (en) * | 2016-06-17 | 2016-11-16 | 上海锐铎自动化有限公司 | Electrically chuck |
| CN106112040B (en) * | 2016-06-17 | 2018-08-03 | 上海锐铎自动化有限公司 | Electrical chuck |
| CN106112014A (en) * | 2016-08-31 | 2016-11-16 | 常州市科协减速机制造有限公司 | A kind of processing unit (plant) ensureing the depth of parallelism and perpendicularity |
| CN111673501A (en) * | 2020-06-17 | 2020-09-18 | 贵州工程应用技术学院 | Clamp with damping function for precision machine tool |
| CN111673501B (en) * | 2020-06-17 | 2021-07-23 | 贵州工程应用技术学院 | Clamp with damping function for precision machine tool |
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Application publication date: 20130102 |