CN106563831B - Drill holder for Hydraulic Expanding Arbors - Google Patents
Drill holder for Hydraulic Expanding Arbors Download PDFInfo
- Publication number
- CN106563831B CN106563831B CN201610909642.2A CN201610909642A CN106563831B CN 106563831 B CN106563831 B CN 106563831B CN 201610909642 A CN201610909642 A CN 201610909642A CN 106563831 B CN106563831 B CN 106563831B
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- CN
- China
- Prior art keywords
- drill holder
- workpiece
- hydraulic expanding
- expanding arbors
- diameter end
- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/40—Expansion mandrels
- B23B31/4006—Gripping the work or tool by a split sleeve
- B23B31/4013—Details of the jaws
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B2215/00—Details of workpieces
- B23B2215/64—Thin walled components
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling Tools (AREA)
Abstract
The invention discloses a kind of drill holder for Hydraulic Expanding Arbors, the drill holder is in second order ladder shaft-like structure, and centre forms through hole, and major diameter end margin is provided with two symmetrical pin holes；Drill holder jacket wall is axially formed multiple uniformly distributed wire cutting grooves；Mandrel passes through through hole, and with drill holder clearance fit.The present invention provides a kind of drill holder for being exclusively used in Hydraulic Expanding Arbors in Hydraulic Expanding Arbors card engaging workpiece mode, after Hydraulic Expanding Arbors card engaging workpiece, workpiece, which need not heat, can directly be loaded, process, be loaded time ＜ 10s, coordinate the use of drill holder of the present invention, guarantee machines rear workpiece inner wall without scuffing, reduces workpiece deformation, and work pieces process qualification rate >=95%, meets the requirement on machining accuracy of workpiece.
Description
Technical field
The invention belongs to a kind of machine tool fixture field, and in particular to a kind of drill holder for Hydraulic Expanding Arbors.
Background technology
A kind of Thin-wall Aluminum Parts, it, which is processed, relies primarily on turning completion, and processing is loaded by the way of hot charging always
Workpiece, i.e., first put the workpiece in heating (95 ± 5) DEG C × (7~20) min in electric drying oven with forced convection, then using expanding with heat and contract with cold
Principle workpiece is loaded on mandrel, treat directly to push workpiece from mandrel using push rod after the completion of work pieces process.So
One, work piece inner surface scuffing is not only be easy to cause, and workpiece deformation can be caused larger.For such a situation, it is necessary to seek
It is a kind of it is brand-new be loaded mode to replace existing way, solve the above problems.
The content of the invention
The present invention proposes that the purpose is to provide one kind to be used for static pressure in order to overcome shortcoming existing in the prior art
The drill holder of expanding arbor.
The technical scheme is that：
A kind of drill holder for Hydraulic Expanding Arbors, the drill holder are in second order ladder shaft-like structure, and centre forms logical
Hole, major diameter end margin are provided with two symmetrical pin holes；Drill holder jacket wall is axially formed multiple uniformly distributed wire cuttings
Groove；Mandrel passes through through hole, and with drill holder clearance fit；Chamfering between the drill holder bigger diameter end and miner diameter end ladder is
67°。
The wire cutting slot bottom end forms circular hole in communication.
The pin hole is arranged between two adjacent wire cutting grooves.
The drill holder bigger diameter end axial dimension is bigger 8mm than workpiece；Miner diameter end axial dimension is bigger 1~2mm than workpiece.
The drill holder carries out Surface heat-treatent, and case hardness is 52HRC~54HRC.
The beneficial effects of the invention are as follows：
The present invention provides a kind of drill holder for being exclusively used in Hydraulic Expanding Arbors in Hydraulic Expanding Arbors card engaging workpiece mode,
After Hydraulic Expanding Arbors card engaging workpiece, workpiece, which need not heat, can directly be loaded, process, and be loaded time ＜ 10s, matches somebody with somebody
The use of drill holder of the present invention is closed, guarantee machines rear workpiece inner wall without scuffing, reduces workpiece deformation, and work pieces process closes
Lattice rate >=95%, meets the requirement on machining accuracy of workpiece.
Brief description of the drawings
Fig. 1 is the sectional view of the present invention；
Fig. 2 is the dimensional structure diagram of the present invention.
Wherein：
1 drill holder, 2 through hole
3 pin hole, 4 wire cutting groove
5 circular holes.
Embodiment
The drill holder for being used for Hydraulic Expanding Arbors to the present invention with reference to Figure of description and embodiment carries out specifically
It is bright：
As shown in Figure 1, 2, a kind of drill holder for Hydraulic Expanding Arbors, the drill holder 1 are in second order ladder shaft-like knot
Structure, centre form through hole 2, and major diameter end margin is provided with two symmetrical pin holes 3；1 jacket wall of drill holder is axially formed
Multiple uniformly distributed wire cutting grooves 4；Mandrel is (not shown) to pass through through hole 2, and is with 1 clearance fit of drill holder, fit clearance
0.015mm。
4 bottom of wire cutting groove forms circular hole 5 in communication.
The pin hole 3 is arranged between two adjacent wire cutting grooves 4.
Chamfering between 1 bigger diameter end of drill holder and miner diameter end ladder is 67 °.
The 1 bigger diameter end axial dimension of drill holder is than workpiece about 8mm；Miner diameter end axial dimension more bigger than workpiece 1~
2mm。
1 outer diameter of drill holder is smaller 0.035mm~0.040mm than workpiece diameter, ensures that workpiece can be installed smoothly
On drill holder.
Described 4 the present embodiment of wire cutting groove is 12, and width is 0.1mm, ensures that drill holder 1 can be equal with mandrel
Even expansion.
Mandrel surface has a ring annular groove, and when drill holder 1 is inserted in mandrel, pin can be screwed into directly through pin hole 3
In annular groove, drill holder 1 is fixed with mandrel, prevents from producing axial displacement between drill holder 1 and mandrel.Two on drill holder 1
Pin hole be symmetrical arranged mode effectively prevent wherein any one pin failure when, drill holder 1 still can be fixed on mandrel
On.
The application method of the present invention：
For aluminum alloy thin walled workpieces it is yielding the characteristics of, using Hydraulic Expanding Arbors card engaging workpiece, in order to protect workpiece
Inner wall and Reducing distortion, the drill holder of the present invention coordinated with Hydraulic Expanding Arbors is devised according to the internal diameter size of workpiece.
Drill holder 1 is sleeved on mandrel, pin fixes drill holder 1 with mandrel through pin hole 3, is then charged into workpiece,
Directly workpiece is sleeved on drill holder, and ensures axially to be loaded in place, then steps on lathe pedal, Hydraulic Expanding Arbors utilize machine
Bed hydraulic cylinder realizes Self-pressurizing agri, and two cascaded surfaces of drill holder 1 are expanded to ensure workpiece uniform force at the same time, workpiece clamping,
It can start to process.After machining, lathe pedal is stepped on, mandrel unclamps automatically, and workpiece can be removed smoothly.
Workpiece is axially positioned with end face of mandrel, and radially using macropore in workpiece stepped hole as master positioning, aperture is time positioning.Become
Chamfer design between the ladder of footpath set is 67 °, the fillet for being R0.9 between workpiece stepped hole, while the axis at drill holder path
To the bigger 1~2mm of size ratio workpiece, than workpiece about 8mm at major diameter, prevent workpiece fillet and chamfer contact at ladder, cause
Axial cross positions, while also to ensure that workpiece comes into full contact with drill holder vertically, so as to even inflation.
In order to ensure in process workpiece can tensioner, will not be produced relative sliding with mandrel, while can avoid again
Expanding force is excessive to cause workpiece to deform, and the swell increment of Hydraulic Expanding Arbors is designed as≤0.1mm.
Hydraulic Expanding Arbors carry out Surface heat-treatent with drill holder 1, and case hardness is 52HRC~54HRC, to reduce
Abrasion during being loaded repeatedly.
The present invention provides a kind of drill holder for being exclusively used in Hydraulic Expanding Arbors in Hydraulic Expanding Arbors card engaging workpiece mode,
After Hydraulic Expanding Arbors card engaging workpiece, workpiece, which need not heat, can directly be loaded, process, and be loaded time ＜ 10s, matches somebody with somebody
The use of drill holder of the present invention is closed, guarantee machines rear workpiece inner wall without scuffing, reduces workpiece deformation, and work pieces process closes
Lattice rate >=95%, meets the requirement on machining accuracy of workpiece.
Claims (5)
- A kind of 1. drill holder for Hydraulic Expanding Arbors, it is characterised in that：The drill holder（1）In second order ladder shaft-like knot Structure, centre form through hole（2）, major diameter end margin is provided with two symmetrical pin holes（3）；Drill holder（1）Jacket wall is along axis To the multiple uniformly distributed wire cutting grooves of formation（4）；Mandrel passes through through hole（2）, and and drill holder（1）Clearance fit；The drill holder （1）Chamfering between bigger diameter end and miner diameter end ladder is 67 °.
- A kind of 2. drill holder for Hydraulic Expanding Arbors according to claim 1, it is characterised in that：The wire cutting groove （4）Bottom forms circular hole in communication（5）.
- A kind of 3. drill holder for Hydraulic Expanding Arbors according to claim 1, it is characterised in that：The pin hole （3）It is arranged at two adjacent wire cutting grooves（4）Between.
- A kind of 4. drill holder for Hydraulic Expanding Arbors according to claim 1, it is characterised in that：The drill holder （1）Bigger diameter end axial dimension is bigger 8mm than workpiece；Miner diameter end axial dimension is bigger 1~2mm than workpiece.
- A kind of 5. drill holder for Hydraulic Expanding Arbors according to claim 1, it is characterised in that：The drill holder （1）Surface heat-treatent is carried out, case hardness is 52 HRC ~ 54HRC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610909642.2A CN106563831B (en) | 2016-10-19 | 2016-10-19 | Drill holder for Hydraulic Expanding Arbors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610909642.2A CN106563831B (en) | 2016-10-19 | 2016-10-19 | Drill holder for Hydraulic Expanding Arbors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106563831A CN106563831A (en) | 2017-04-19 |
| CN106563831B true CN106563831B (en) | 2018-04-24 |
Family
ID=58533887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610909642.2A Active CN106563831B (en) | 2016-10-19 | 2016-10-19 | Drill holder for Hydraulic Expanding Arbors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106563831B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102020109775A1 (en) | 2020-04-08 | 2021-10-14 | Kennametal Inc. | Reducing sleeve, modular system for providing a reducing sleeve assembly and machining assembly |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1145790A1 (en) * | 2000-03-13 | 2001-10-17 | Sandvik Tobler S.A. | High precision expanding mandrel with cylindrical clamping |
| CA2607669A1 (en) * | 2006-11-17 | 2008-05-17 | Hydra-Lock Corporation | Hydrostatically actuated workholding apparatus with high expansion and recovery sleeve |
| CN201470924U (en) * | 2009-06-18 | 2010-05-19 | 中信戴卡轮毂制造股份有限公司 | Improved machining center clamp |
| CN202114285U (en) * | 2011-04-27 | 2012-01-18 | 上海东方泵业(集团)有限公司 | Expansion positioning mandrel |
| CN103921142A (en) * | 2014-04-18 | 2014-07-16 | 蒋剑锋 | Fixing clamp for turning special-shaped workpiece |
| CN103990825A (en) * | 2014-06-18 | 2014-08-20 | 中核(天津)科技发展有限公司 | Machining tool for ultrathin-walled cylinder workpiece |
| CN104174888A (en) * | 2013-05-28 | 2014-12-03 | 钴碳化钨硬质合金公司 | Hydraulic chuck with a reduction sleeve |
| CN204295072U (en) * | 2014-10-24 | 2015-04-29 | 重庆市德顺汽车部件制造有限公司 | For the core fixture that rises of synchronizer gear sleeve |
| CN204673000U (en) * | 2015-05-30 | 2015-09-30 | 广西玉柴机器股份有限公司 | A kind of self-locking expansion set |
| CN204934662U (en) * | 2015-08-04 | 2016-01-06 | 安徽海立精密铸造有限公司 | A kind of expansion set for expansion sleeve type fixture |
| CN204953942U (en) * | 2015-09-14 | 2016-01-13 | 江门马丁电机科技有限公司 | Fixture device and processing equipment |
| CN105290439A (en) * | 2015-11-24 | 2016-02-03 | 新昌县中环磨料有限公司 | Clamp |
| CN205437204U (en) * | 2016-03-02 | 2016-08-10 | 浙江金驰机械有限公司 | Lathe expands and overlaps |
| CN205519741U (en) * | 2016-03-02 | 2016-08-31 | 浙江金驰机械有限公司 | Chamfer cover that rises |
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| WO2013170475A1 (en) * | 2012-05-18 | 2013-11-21 | 浙江联宜电机股份有限公司 | Expanding and tightening clamping tool |
-
2016
- 2016-10-19 CN CN201610909642.2A patent/CN106563831B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1145790A1 (en) * | 2000-03-13 | 2001-10-17 | Sandvik Tobler S.A. | High precision expanding mandrel with cylindrical clamping |
| CA2607669A1 (en) * | 2006-11-17 | 2008-05-17 | Hydra-Lock Corporation | Hydrostatically actuated workholding apparatus with high expansion and recovery sleeve |
| CN201470924U (en) * | 2009-06-18 | 2010-05-19 | 中信戴卡轮毂制造股份有限公司 | Improved machining center clamp |
| CN202114285U (en) * | 2011-04-27 | 2012-01-18 | 上海东方泵业(集团)有限公司 | Expansion positioning mandrel |
| CN104174888A (en) * | 2013-05-28 | 2014-12-03 | 钴碳化钨硬质合金公司 | Hydraulic chuck with a reduction sleeve |
| CN103921142A (en) * | 2014-04-18 | 2014-07-16 | 蒋剑锋 | Fixing clamp for turning special-shaped workpiece |
| CN103990825A (en) * | 2014-06-18 | 2014-08-20 | 中核(天津)科技发展有限公司 | Machining tool for ultrathin-walled cylinder workpiece |
| CN204295072U (en) * | 2014-10-24 | 2015-04-29 | 重庆市德顺汽车部件制造有限公司 | For the core fixture that rises of synchronizer gear sleeve |
| CN204673000U (en) * | 2015-05-30 | 2015-09-30 | 广西玉柴机器股份有限公司 | A kind of self-locking expansion set |
| CN204934662U (en) * | 2015-08-04 | 2016-01-06 | 安徽海立精密铸造有限公司 | A kind of expansion set for expansion sleeve type fixture |
| CN204953942U (en) * | 2015-09-14 | 2016-01-13 | 江门马丁电机科技有限公司 | Fixture device and processing equipment |
| CN105290439A (en) * | 2015-11-24 | 2016-02-03 | 新昌县中环磨料有限公司 | Clamp |
| CN205437204U (en) * | 2016-03-02 | 2016-08-10 | 浙江金驰机械有限公司 | Lathe expands and overlaps |
| CN205519741U (en) * | 2016-03-02 | 2016-08-31 | 浙江金驰机械有限公司 | Chamfer cover that rises |
Non-Patent Citations (3)
| Title |
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| 一种静压膨胀芯轴的设计与应用;管延科等;《山东冶金》;20070831;第29卷(第4期);第82-83页 * |
| 用于外齿轮加工的静压膨胀芯轴;沈健;《机械传动》;20041231;第28卷(第6期);第61、62、73页 * |
| 静压膨胀芯轴的应用;沈健等;《组合机床与自动化加工技术》;20050831(第8期);第71、72、74页 * |
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|---|---|
| CN106563831A (en) | 2017-04-19 |
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