CN103753323B - Automatic self-centering fixture - Google Patents
Automatic self-centering fixture Download PDFInfo
- Publication number
- CN103753323B CN103753323B CN201410063034.5A CN201410063034A CN103753323B CN 103753323 B CN103753323 B CN 103753323B CN 201410063034 A CN201410063034 A CN 201410063034A CN 103753323 B CN103753323 B CN 103753323B
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- China
- Prior art keywords
- axle
- fairlead
- hole
- radial direction
- locating dowel
- 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.)
- Expired - Fee Related
Links
- 230000000694 effects Effects 0.000 claims abstract description 4
- 238000003754 machining Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The present invention relates to a kind of self-centering fixture automatically, comprise axle, armature spindle, end cap, fairlead, locating dowel one end of axle is provided with positioning step, axle cylindrical is location cylinder, an inner bore of step is provided with in the location cylinder of axle, the locating dowel of axle has vertically at least two group radial direction through hole, often organize radial direction through hole on the same cross section of locating dowel, be evenly equipped with three or four radial direction through hole, radial direction through hole internal fixtion is connected with fairlead, in fairlead, activity is connected location clamping column, in the middle part of the inner bore of step of axle, motor stator is housed, armature spindle two ends are connected with the end cap endoporus be fixed on mandrels backend face with the inner bore of step front end connecting hole of axle respectively by bearing, the rotor both sides of armature spindle are respectively equipped with external cam post, each external cam post is by three or four-cam is circumferentially uniform forms, the cylinder of each cam contacts with the bottom of location clamping column and connects.
Description
Technical field
The present invention relates to a kind of thin-walled parts centralizer, particularly a kind of automatic self-centering fixture of thin-walled parts.
Background technology
In machining, some workpiece are positioned by its endoporus and are clamped, and existing fixture or complicated structure, be exactly unload cumbersome, and order scarcely can realize self-centering, often can not satisfy condition requirement, causes machining accuracy poor.Therefore, Chinese invention patent application number: 201110286659.4, disclose a kind of self-centering fixture, axle is the cone of hollow, and the external diameter of nearly ring flange end is greater than the external diameter of ring flange end far away, the ring flange end far away of axle has one section of external screw thread, this section of external screw thread place is equipped with adjusting nut, the outer circumference of axle is arranged with a slidably baffle ring, axle is provided with a pair along the chute distributed in axle, the axle center of axle is hung with a pull bar, one end of pull bar and baffle ring are fixed by a pin, pin is through in a pair chute, and can slide along it, the other end of pull bar is fixed with a catch, the inwall of expansion set is the conicoid matched with the outer wall of axle, outer wall is column face, the nearly ring flange end of expansion set has the locating ring for axial location workpiece of circumference protrusion, expansion set axially offers multiple expansion joint being convenient to expand and shrink, expansion set is set between baffle ring and adjusting nut, when adjusting nut is to when the direction turn of described ring flange, the direction that expansion set increases to the external diameter of axle is moved and makes enlarged outside diameter, thus offset with the inwall of workpiece, when adjusting nut is to direction turn away from ring flange, the catch described in adjusting nut drives, by pull bar and baffle ring, makes expansion set move to the direction of the reduced diameter of described axle, the reduced diameter of expansion set and being separated with the inwall of workpiece.But the size of this clamp power is uncontrollable, in the process of clamping thin-walled parts, easily cause thin-walled parts to be out of shape, particularly the distortion of thin-walled elongated workpieces is larger.
Summary of the invention
The present invention be to solve thin-walled elongated workpieces clamp the middle control of clamping force size and the technical problem of machining deformation, a kind of self-centering fixture is automatically provided.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of self-centering fixture automatically, comprise axle, armature spindle, end cap, fairlead, locating dowel one end of axle is provided with positioning step, axle cylindrical is location cylinder, an inner bore of step is provided with in the location cylinder of axle, the locating dowel of axle has vertically at least two group radial direction through hole, often organize radial direction through hole on the same cross section of locating dowel, be evenly equipped with three or four radial direction through hole, radial direction through hole internal fixtion is connected with fairlead, in fairlead, activity is connected location clamping column, in the middle part of the inner bore of step of axle, motor stator is housed, armature spindle two ends are connected with the end cap endoporus be fixed on mandrels backend face with the inner bore of step front end connecting hole of axle respectively by bearing, the rotor both sides of armature spindle are respectively equipped with external cam post, each external cam post is by three or four-cam is circumferentially uniform forms, the cylinder of each cam contacts with the bottom of location clamping column and connects.
The locating dowel of axle is connected with thin-walled parts endoporus matched in clearance.End cap cylindrical is threaded end face clamp nut.Fairlead is built with back-moving spring, and back-moving spring two ends contact with the boss upper surface of locating clamping column with fairlead endoporus upper end step face respectively and connect.
The invention has the beneficial effects as follows: structure is simple, workpiece easy to loading and unloading, and can self-centering be realized, after particularly employing armature spindle, external cam post and location clamping column, in the process of clamping thin-walled elongated workpieces, by controlling the distance of the armature spindle rotational angle just outside movement of controlled formulation position clamping column, reach the size controlling clamping force, thin-walled elongated workpieces is made to clamp machining deformation amount little, positioning precision is high, axiality and the perpendicularity of the thin-walled elongated workpieces after processing can be ensured, and by armature spindle energy automated exchanged cutter thin-walled elongated workpieces.
Accompanying drawing explanation
Fig. 1 is structure sectional view of the present invention;
Fig. 2 is the sectional view along A-A in Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described.
As Fig. 1, shown in 2, a kind of self-centering fixture automatically, comprises axle 1, armature spindle 2, location clamping column 3, end cap 4, end face clamp nut 5, bearing 6, fairlead 8, back-moving spring 9, motor stator 10, rotor 11, external cam post 12.
Locating dowel one end of axle 1 is provided with positioning step, axle 1 cylindrical is location cylinder, an inner bore of step is provided with in the location cylinder of axle 1, the locating dowel of axle 1 has vertically at least two group radial direction through hole, often organize radial direction through hole on the same cross section of locating dowel, be evenly equipped with three or four radial direction through hole, radial direction through hole internal fixtion is connected with fairlead 8, in fairlead 8, activity is connected and locates clamping column 3, motor stator 10 is housed in the middle part of the inner bore of step of axle 1, armature spindle 2 two ends are connected with end cap 4 endoporus be fixed on axle 1 rear end face with the inner bore of step front end connecting hole of axle 1 respectively by bearing 6, rotor 11 both sides of armature spindle 2 are respectively equipped with external cam post 12, each external cam post 12 is by three or four-cam is circumferentially uniform forms, the cylinder of each cam contacts with the bottom of location clamping column 3 and connects.
The locating dowel of axle 1 is connected with thin-walled parts 7 endoporus matched in clearance.End cap 4 cylindrical is threaded end face clamp nut 5.Fairlead 8 is built with back-moving spring 9, and back-moving spring 9 two ends contact with the boss upper surface of locating clamping column 3 with fairlead 8 endoporus upper end step face respectively and connect.
When armature spindle 2 rotates along clockwise direction under the drive of rotor 11, location clamping column 3 outward direction on armature spindle 2 moves, and the contact internal walls of its head and thin-walled parts 7 pushes against.
When armature spindle 2 rotates in the counterclockwise direction under the drive of rotor 11, the location clamping column 3 on armature spindle 2 moves inward and is separated with the inwall of thin-walled parts 7 under back-moving spring 9 acts on.
Claims (2)
1. an automatic self-centering fixture, comprise axle (1), armature spindle (2), end cap (4), fairlead (8), it is characterized in that: locating dowel one end of described axle (1) is provided with positioning step, axle (1) cylindrical is location cylinder, an inner bore of step is provided with in the location cylinder of axle (1), the locating dowel of axle (1) has vertically at least two group radial direction through hole, often organize radial direction through hole on the same cross section of locating dowel, be evenly equipped with three or four radial direction through hole, radial direction through hole internal fixtion is connected with fairlead (8), fairlead (8) interior activity is connected and locates clamping column (3), motor stator (10) is housed in the middle part of the inner bore of step of axle (1), armature spindle (2) two ends are connected with end cap (4) endoporus be fixed on axle (1) rear end face with the inner bore of step front end connecting hole of axle (1) respectively by bearing (6), rotor (11) both sides of armature spindle (2) are respectively equipped with external cam post (12), each external cam post (12) is by three or four-cam is circumferentially uniform forms, the cylinder of each cam contacts with the bottom of location clamping column (3) and connects, described end cap (4) cylindrical is threaded end face clamp nut (5), described fairlead (8) is built with back-moving spring (9), and back-moving spring (9) two ends contact with the boss upper surface of locating clamping column (3) with fairlead (8) endoporus upper end step face respectively and connect.
2. automatic self-centering fixture according to claim 1, is characterized in that: the locating dowel of described axle (1) is connected with thin-walled parts (7) endoporus matched in clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063034.5A CN103753323B (en) | 2014-02-23 | 2014-02-23 | Automatic self-centering fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410063034.5A CN103753323B (en) | 2014-02-23 | 2014-02-23 | Automatic self-centering fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103753323A CN103753323A (en) | 2014-04-30 |
| CN103753323B true CN103753323B (en) | 2016-01-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410063034.5A Expired - Fee Related CN103753323B (en) | 2014-02-23 | 2014-02-23 | Automatic self-centering fixture |
Country Status (1)
| Country | Link |
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| CN (1) | CN103753323B (en) |
Families Citing this family (12)
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| CN105415048B (en) * | 2015-12-05 | 2018-01-30 | 重庆华洋单向器制造有限公司 | A kind of turning clamp of isolator sleeve pipe |
| CN105728770A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Clamp tool used for turning thin-wall cylindrical workpiece |
| CN105729197A (en) * | 2016-03-30 | 2016-07-06 | 句容五星机械制造有限公司 | Thin-wall tubular workpiece clam tool |
| CN105798656B (en) * | 2016-05-25 | 2017-12-05 | 上海申富电机有限公司 | A kind of motor stator Excircle machining positioning fixture |
| CN106500568B (en) * | 2016-12-16 | 2023-01-17 | 苏州美瑞时科技有限公司 | Adjustable height gauge measuring head |
| CN108705355B (en) * | 2018-07-31 | 2023-11-03 | 中信戴卡股份有限公司 | Improved turning positioning device for wheel machining center |
| CN109262292A (en) * | 2018-12-11 | 2019-01-25 | 河南理工大学 | With the fluid pressure type fixture and its application method of Internal hole positioning automated exchanged cutter thin-walled steel bushing |
| CN109571371B (en) * | 2019-01-24 | 2024-01-30 | 中国人民解放军陆军工程大学 | Rotary unloading device |
| CN110757335A (en) * | 2019-12-05 | 2020-02-07 | 郑州机械研究所有限公司 | Diameter-variable mandrel for improving precision of external circle finish machining of disc gear and part |
| CN112109010A (en) * | 2020-08-18 | 2020-12-22 | 天津滨海通达动力科技有限公司 | Motor is folded and is pressed and car processing reducing mould device |
| CN113145924B (en) * | 2021-03-29 | 2022-10-21 | 重庆天路电力设备有限公司 | Steel plate shearing machine with moving and positioning functions |
| CN113059073B (en) * | 2021-03-29 | 2022-03-11 | 浙江大学 | Inner centering mechanism for bending and forming flange large-diameter pipe fitting |
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| CN2456874Y (en) * | 2000-12-31 | 2001-10-31 | 万向钱潮股份有限公司 | Autoamtic centring expand clamp of grinding ball head milling cutter |
| CN101439417A (en) * | 2008-12-15 | 2009-05-27 | 施亨庆 | Method for clamping machine tool chuck and device for clamping machine tool chuck |
| JP2010221360A (en) * | 2009-03-24 | 2010-10-07 | Takamatsu Machinery Co Ltd | Machine tool |
| CN202106231U (en) * | 2011-06-07 | 2012-01-11 | 襄阳丰正汽车配件制造有限公司 | Inner bore self-centring clamp |
| CN202240615U (en) * | 2011-08-22 | 2012-05-30 | 贵州航天新力铸锻有限责任公司 | Friction-type self-locking clamping mechanism for cutting conical hole piece |
| CN102806480A (en) * | 2011-05-31 | 2012-12-05 | 上海工程技术大学 | Turning clamp for thin-wall part of gearbox of car |
| CN103121170A (en) * | 2011-11-21 | 2013-05-29 | 徐州市恒基伟业建材发展有限公司 | Clamping tool for cylinder-type workpiece |
| CN203779181U (en) * | 2014-02-23 | 2014-08-20 | 张鸿来 | Automatic self-centering clamp for thin-walled sleeve |
-
2014
- 2014-02-23 CN CN201410063034.5A patent/CN103753323B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2456874Y (en) * | 2000-12-31 | 2001-10-31 | 万向钱潮股份有限公司 | Autoamtic centring expand clamp of grinding ball head milling cutter |
| CN101439417A (en) * | 2008-12-15 | 2009-05-27 | 施亨庆 | Method for clamping machine tool chuck and device for clamping machine tool chuck |
| JP2010221360A (en) * | 2009-03-24 | 2010-10-07 | Takamatsu Machinery Co Ltd | Machine tool |
| CN102806480A (en) * | 2011-05-31 | 2012-12-05 | 上海工程技术大学 | Turning clamp for thin-wall part of gearbox of car |
| CN202106231U (en) * | 2011-06-07 | 2012-01-11 | 襄阳丰正汽车配件制造有限公司 | Inner bore self-centring clamp |
| CN202240615U (en) * | 2011-08-22 | 2012-05-30 | 贵州航天新力铸锻有限责任公司 | Friction-type self-locking clamping mechanism for cutting conical hole piece |
| CN103121170A (en) * | 2011-11-21 | 2013-05-29 | 徐州市恒基伟业建材发展有限公司 | Clamping tool for cylinder-type workpiece |
| CN203779181U (en) * | 2014-02-23 | 2014-08-20 | 张鸿来 | Automatic self-centering clamp for thin-walled sleeve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103753323A (en) | 2014-04-30 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhuang Jinghui Inventor before: Zhang Honglai |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170512 Address after: 300000 Tianjin city Beichen District DAZHANGZHUANG Sheng Jingming garden building 18, 404 Patentee after: Zhuang Jinghui Address before: 201100, room 20, 601, West Village, Xhenzhuang Town, Shanghai, Minhang District Patentee before: Zhang Honglai |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20190223 |
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| CF01 | Termination of patent right due to non-payment of annual fee |