CN102501115A - Internal expansion clamping mechanism for medium-size and large-size bearings - Google Patents
Internal expansion clamping mechanism for medium-size and large-size bearings Download PDFInfo
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- CN102501115A CN102501115A CN2011103386607A CN201110338660A CN102501115A CN 102501115 A CN102501115 A CN 102501115A CN 2011103386607 A CN2011103386607 A CN 2011103386607A CN 201110338660 A CN201110338660 A CN 201110338660A CN 102501115 A CN102501115 A CN 102501115A
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Abstract
The invention relates to an internal expansion clamping mechanism for medium-size and large-size bearings. In the prior art, an internal expansion clamping mechanism on an existing lathe utilizes a push-pull screw generally, the push-pull screw moves back and forth to force a spring collet to expand so as to clamp a workpiece, but the push-pull screw with smaller outer diameter and low rigidity is hard to bear higher tension and is incapable of meeting requirements of heavy cutting due to structural limitation thereof. Since the medium-size and large-size bearings are large in size, heavy in weight and high in lathing force, production and process of the medium-size and large-size bearings require to be guaranteed by the internal expansion clamping mechanism with higher rigidity. Meanwhile, due to requirements for automatic production reliability and high cost for production of single medium-size and large-size bearings, the requirement for reducing scrap in process is more urgent, so that a defective clamping prompt alarm needs to be mounted in the internal expansion clamping mechanism to increase qualified rate of products. The internal expansion clamping mechanism is simple, compact and reasonable in structure and long in service life, is provided with the defective clamping prompt alarm, and is capable of bearing higher cutting force, meeting requirement to heavy-load cutting for large-size workpieces while increasing qualified rate of products in production greatly, reducing production cost and meeting requirements of automatic production.
Description
Technical field
The present invention relates to the machining equipment field, especially relevant with a kind of clamp mechanism of internal expanding.
Background technology
The internal expanding clamp mechanism generally adopts the top to draw screw rod on the lathe at present, draws screw rod to move forward and backward by the top, forces collet to rise greatly, clamps processing work.Screw rod is drawn because the reasons in structure external diameter is less, and rigidity is little in the top, and the tightening force that is difficult to bear can not satisfy the heavy cut needs.And medium-and-large-sized bearing size is big; Weight is big, and Cutting Force is big, needs big rigidity internal expanding clamp mechanism and guarantees medium-and-large-sized Production of bearing processing; Simultaneously because the medium-and-large-sized bearing cost of single-piece is high; It is more outstanding that requirement is scrapped in minimizing processing, and the internal expanding clamp mechanism needs the bad prompting of clamping to report to the police more, improves the qualification rate of product.
Summary of the invention
The object of the invention will solve above-mentioned existing technical deficiency exactly, provides a kind of simple in structure, compact and reasonable, the bad prompting of band clamping to report to the police the internal expanding clamp mechanism that can bear big cutting force.For this reason, following technical scheme is adopted in the invention of this reality:
The bad prompting warning function of a kind of band clamping internal expanding mechanism comprises main shaft, the air inlet cover; Chuck seat is fixed on the main shaft, and chuck seat is connected with thimble seat, adpting flange, and adpting flange is installed in the main shaft; Supporting is fixed on the thimble seat, and the processing work end face is positioned in the supporting.It is characterized in that: the air inlet cover, main shaft, chuck seat, thimble seat, porose mutual perforation in the middle of the supporting, sealing ring all is equipped with in the pore contact position, guarantees the gas circuit sealing.When the tensioner workpiece, compressed air is covered into by air inlet, through main shaft, and chuck seat, thimble seat, whether arrival is supported and the workpiece contact-making surface, have whether to leak gas detection automatically and point out the warning clamping bad, realizes the bad detection of clamping.
A kind of internal expanding mechanism of big rigidity comprises stretching screw, passes to be installed in sliding bearing on the adpting flange; Link to each other with terminal pad through locking nut, terminal pad adopts bolt to be connected with collet, and the centre is separated with the tension circle; Workpiece is enclosed within on the collet, and end face is positioned in the supporting.It is characterized in that:,, connect the spring chuck of moving through terminal pad, tension circle when power source (devices such as angling cylinder, rotary cylinder) pulls back stretching screw; Collet is moved backward; Fixing thimble seat forces the collet spreading, and the tensioner workpiece is realized clamping work pieces.
As the further of such scheme improved and replenish, the present invention also comprises following additional technical feature:
Air channel outlet diameter is less than the diameter of import on the said end surface supporting.
Said air inlet cover inside has wear-resisting lasso, and this wear-resisting lasso is provided with the air duct of cannelure, and wear-resisting lasso communicates with the main shaft upper vent hole in the air inlet cover, makes described air inlet cover be positioned at any angle and communicates with the main shaft passage.
The contact-making surface of the air vent channel of said main shaft, chuck seat, tip-lever support, supporting all is designed with sealing ring, guarantees the sealing of gas circuit.
In the middle of said stretching screw and the adpting flange sliding bearing is arranged, be fit to connect tight screw rod and frequently move forward and backward, not easy to wear, improve service life.
Said thimble seat is fixed on the chuck seat, and axial restraint is motionless, and collet is axially moved forward and backward by stretching screw, terminal pad, tension circle.The thimble size of thimble seat is big, has improved the rigidity of clamp mechanism greatly.
Use the present invention can reach following beneficial effect: the internal expanding clamp mechanism that can bear big cutting force, long service life are reported to the police in, compact and reasonable simple in structure because of it, the bad prompting of band clamping.Can satisfy big workpiece heavy load cutting, improve the qualification rate of product processing simultaneously greatly, reduce production cost, can realize the automated production requirement.
Description of drawings:
Fig. 1, Fig. 2 are cutaway views of the present invention.
The specific embodiment
Be described in detail below in conjunction with the accompanying drawing specific embodiments of the invention.
Shown in Fig. 1-2, the present invention includes main shaft 2, air inlet cover 3; Chuck seat 10 is fixed on the main shaft 2, and chuck seat 10 is connected with thimble seat 7, adpting flange 5, and adpting flange 5 is installed in the main shaft 2; Supporting 11 is fixed on the thimble seat 7, and processing work 1 end face is positioned in the supporting 11.Air inlet cover 3, main shaft 2, chuck seat 10, thimble seat 7, porose mutual perforation in the middle of the supporting 11, sealing ring all is equipped with in the pore contact position, guarantees the gas circuit sealing.When tensioner workpiece 1, compressed air is got into by air inlet cover 3, through main shaft 2, chuck seat 10, thimble seat 7 arrives supporting 11 and workpiece 1 contact-making surface, have whether leak gas detect automatically and prompting warning clamping whether bad, realize the bad detection of clamping.
Shown in Fig. 1-2; The present invention includes stretching screw 4, pass and be installed in sliding bearing 12 on the adpting flange 5, link to each other with terminal pad 6 through locking nut 13; Terminal pad 6 adopts bolt to be connected with collet 9; The centre is separated with tension circle 8, and workpiece 1 is enclosed within on the collet 9, and end face is positioned in the supporting 11.When power source (devices such as angling cylinder, rotary cylinder) pulls back stretching screw 4,, connect the spring chuck 9 of moving through terminal pad 6, tension circle 8; Collet 9 is moved backward; Fixing thimble seat 7 forces collet 9 spreadings, and tensioner workpiece 1 is realized clamping work pieces 1.
Claims (2)
1. internal expanding clamp mechanism that is used for medium-and-large-sized bearing; Comprise main shaft 2, air inlet cover 3, chuck seat 10 is fixed on the main shaft 2; Chuck seat 10 is connected with thimble seat 7, adpting flange 5; Adpting flange 5 is installed in the main shaft 2, and supporting 11 is fixed on the thimble seat 7, and processing work 1 end face is positioned in the supporting 11.Air inlet cover 3, main shaft 2, chuck seat 10, thimble seat 7, porose mutual perforation in the middle of the supporting 11, sealing ring all is equipped with in the pore contact position, guarantees the gas circuit sealing.When tensioner workpiece 1, compressed air is got into by air inlet cover 3, through main shaft 2, chuck seat 10, thimble seat 7 arrives supporting 11 and workpiece 1 contact-making surface, have whether leak gas detect automatically and prompting warning clamping whether bad, realize the bad detection of clamping.
2. a kind of internal expanding clamp mechanism that is used for medium-and-large-sized bearing according to claim 1; It is characterized in that: comprise stretching screw 4, pass and be installed in sliding bearing 12 on the adpting flange 5, link to each other with terminal pad 6 through locking nut 13; Terminal pad 6 adopts bolt to be connected with collet 9; The centre is separated with tension circle 8, and workpiece 1 is enclosed within on the collet 9, and end face is positioned in the supporting 11.When power source (devices such as angling cylinder, rotary cylinder) pulls back stretching screw 4,, connect the spring chuck 9 of moving through terminal pad 6, tension circle 8; Collet 9 is moved backward; Fixing thimble seat 7 forces collet 9 spreadings, and tensioner workpiece 1 is realized clamping work pieces 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103386607A CN102501115A (en) | 2011-10-27 | 2011-10-27 | Internal expansion clamping mechanism for medium-size and large-size bearings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103386607A CN102501115A (en) | 2011-10-27 | 2011-10-27 | Internal expansion clamping mechanism for medium-size and large-size bearings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102501115A true CN102501115A (en) | 2012-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103386607A Pending CN102501115A (en) | 2011-10-27 | 2011-10-27 | Internal expansion clamping mechanism for medium-size and large-size bearings |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744636A (en) * | 2012-07-10 | 2012-10-24 | 苏州工业园区艺达精密机械有限公司 | Tool clamp |
| CN102886542A (en) * | 2012-10-15 | 2013-01-23 | 宁夏新瑞长城机床有限公司 | Novel tire expansion clamp |
| CN102886543A (en) * | 2012-10-15 | 2013-01-23 | 宁夏新瑞长城机床有限公司 | Internal expanding fixture with automatic discharging function |
| CN102886539A (en) * | 2012-09-26 | 2013-01-23 | 山东白马永诚数控机床有限公司 | Expansion type quick change spring chuck |
| CN102886701A (en) * | 2012-10-15 | 2013-01-23 | 宁夏新瑞长城机床有限公司 | Anti-shake internal expanding fixture |
| CN103612129A (en) * | 2013-11-08 | 2014-03-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Adaptive deformation-resistant supporting fixture |
| CN107470932A (en) * | 2017-09-26 | 2017-12-15 | 宜昌船舶柴油机有限公司 | Gas turbine exhaust flange processing tool and process tool |
| CN111112649A (en) * | 2018-10-31 | 2020-05-08 | 发那科株式会社 | Spindle device |
| CN112387848A (en) * | 2020-10-26 | 2021-02-23 | 天津鹏鹄科技有限公司 | Rapid bar cutting machine and cutting method thereof |
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| US20040040424A1 (en) * | 2002-08-30 | 2004-03-04 | Smith Roger R. | Expanding collet assembly for pick-off spindle |
| JP2005103735A (en) * | 2003-10-01 | 2005-04-21 | Mori Seiki Co Ltd | Tool attachment confirmation device |
| CN201186397Y (en) * | 2008-03-27 | 2009-01-28 | 浙江陀曼精密机械有限公司 | Lathe carrier workpiece clamping position detection mechanism |
| CN201208703Y (en) * | 2008-05-20 | 2009-03-18 | 南京数控机床有限公司 | Automobile clamper |
| CN101480726A (en) * | 2009-01-15 | 2009-07-15 | 浙江东盛精密机械有限公司 | Bearing ring turning digital control lathe with automatic on-line air pressure detection function |
| CN201446423U (en) * | 2009-05-19 | 2010-05-05 | 南京数控机床有限公司 | Inner hole clamping tool for lathe |
| CN201900490U (en) * | 2010-12-24 | 2011-07-20 | 襄樊中铁宏吉预应力设备有限公司 | Inner clamp type elastic clamping sleeve for lathe |
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2011
- 2011-10-27 CN CN2011103386607A patent/CN102501115A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040040424A1 (en) * | 2002-08-30 | 2004-03-04 | Smith Roger R. | Expanding collet assembly for pick-off spindle |
| JP2005103735A (en) * | 2003-10-01 | 2005-04-21 | Mori Seiki Co Ltd | Tool attachment confirmation device |
| CN201186397Y (en) * | 2008-03-27 | 2009-01-28 | 浙江陀曼精密机械有限公司 | Lathe carrier workpiece clamping position detection mechanism |
| CN201208703Y (en) * | 2008-05-20 | 2009-03-18 | 南京数控机床有限公司 | Automobile clamper |
| CN101480726A (en) * | 2009-01-15 | 2009-07-15 | 浙江东盛精密机械有限公司 | Bearing ring turning digital control lathe with automatic on-line air pressure detection function |
| CN201446423U (en) * | 2009-05-19 | 2010-05-05 | 南京数控机床有限公司 | Inner hole clamping tool for lathe |
| CN201900490U (en) * | 2010-12-24 | 2011-07-20 | 襄樊中铁宏吉预应力设备有限公司 | Inner clamp type elastic clamping sleeve for lathe |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744636A (en) * | 2012-07-10 | 2012-10-24 | 苏州工业园区艺达精密机械有限公司 | Tool clamp |
| CN102886539A (en) * | 2012-09-26 | 2013-01-23 | 山东白马永诚数控机床有限公司 | Expansion type quick change spring chuck |
| CN102886542A (en) * | 2012-10-15 | 2013-01-23 | 宁夏新瑞长城机床有限公司 | Novel tire expansion clamp |
| CN102886543A (en) * | 2012-10-15 | 2013-01-23 | 宁夏新瑞长城机床有限公司 | Internal expanding fixture with automatic discharging function |
| CN102886701A (en) * | 2012-10-15 | 2013-01-23 | 宁夏新瑞长城机床有限公司 | Anti-shake internal expanding fixture |
| CN102886543B (en) * | 2012-10-15 | 2014-07-30 | 宁夏新瑞长城机床有限公司 | Internal expanding fixture with automatic discharging function |
| CN103612129A (en) * | 2013-11-08 | 2014-03-05 | 沈阳黎明航空发动机(集团)有限责任公司 | Adaptive deformation-resistant supporting fixture |
| CN103612129B (en) * | 2013-11-08 | 2015-12-09 | 沈阳黎明航空发动机(集团)有限责任公司 | A kind of self adaptation supports resistance to deformation fixture |
| CN107470932A (en) * | 2017-09-26 | 2017-12-15 | 宜昌船舶柴油机有限公司 | Gas turbine exhaust flange processing tool and process tool |
| CN111112649A (en) * | 2018-10-31 | 2020-05-08 | 发那科株式会社 | Spindle device |
| CN112387848A (en) * | 2020-10-26 | 2021-02-23 | 天津鹏鹄科技有限公司 | Rapid bar cutting machine and cutting method thereof |
| CN112387848B (en) * | 2020-10-26 | 2023-01-20 | 天津鹏鹄科技有限公司 | Rapid bar cutting machine and cutting method thereof |
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Application publication date: 20120620 |