CN103769639B - With bidirectionally limited external clamping type electric precise chuck - Google Patents
With bidirectionally limited external clamping type electric precise chuck Download PDFInfo
- Publication number
- CN103769639B CN103769639B CN201410051796.3A CN201410051796A CN103769639B CN 103769639 B CN103769639 B CN 103769639B CN 201410051796 A CN201410051796 A CN 201410051796A CN 103769639 B CN103769639 B CN 103769639B
- Authority
- CN
- China
- Prior art keywords
- piston assembly
- stack shell
- wedge
- keyset
- hinge block
- 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
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
- B23B31/02—Chucks
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
- Manipulator (AREA)
Abstract
Work binder tool is belonged to bidirectionally limited external clamping type electric precise chuck, upper at stack shell, lower surface is fixedly mounted with respectively, lower plate, wedge is packed on upper plate, piston assembly is inserted in wedge centre bore, and be positioned at the airtight chamber of stack shell, folded spring is sleeved in piston assembly, on it, lower surface contacts with piston assembly with upper plate respectively and coordinates, stack shell arranges steam vent, electric rotating machine through shaft coupling and leading screw affixed, and be inserted in feed screw nut, upper end and piston assembly lower contacts, feed screw nut is fixed in lower plate, elastic hinge block is sleeved on wedge outside, spacing collar is nested on elastic hinge block outside, by pre-loading screw, keyset is arranged on piston assembly upper end, keyset and elastic hinge block affixed, adjustment knob is fitted on keyset, stop screw and limited post are inserted on keyset, and be threaded with wedge, this apparatus structure is simple, and operation quality is good, and reliability is high, adaptable.
Description
Technical field
The invention belongs to work binder tool, relate generally to the accurate annular workpieces clamping device in equipment manufacturing field.
Background technology
In ultraprecise metrology and measurement and Ultra-precision Turning field, at a high speed, clamping device that is stable, registration is the basic guarantee carrying out accurate measurement and aero-engine assembling.At present, along with the progress of material science, and the raising of the accuracy class of ultra precise measurement instrument and Ultra-precision Turning manufacturing equipment, the design ap-plication of high-precision annular workpieces is more and more extensive, and the utensil in its process becomes the basis ensureing machining accuracy.
HeFei University of Technology proposes the axial fastening chuck of a kind of oscillating rod type (the axial fastening chuck of a kind of oscillating rod type.Patent publication No.: CN 201210212982.1).The program devises power chuck body and expansion chuck body, and radial direction is uniformly distributed three chutes and is embedded with end pawl and pawling, and top is provided with oscillating bar assembly, this structure can overcome Workpiece structure complicated time tradition chuck be difficult to the problem that clamps.The problem of the program is, adopts axial grip, is not suitable for thin wall cylinder-shaped workpiece.
Beijing Qixing Huachuang Electronics Co., Ltd proposes a kind of disk clamping device (disk clamping device.Patent publication No.: CN 201110365937.5).The program mainly comprises chuck main body, cam, limited block, at least three hold assemblies, when cam rotates with chuck main body, limited block is along the fixing described hold assembly of chuck main body radial direction, the feature of this structure is the clip position not limiting manipulator, achieves the clamping to pan when or else damaging clipped object part.The problem of the program is, adopts wild card design, clamps uneven, can produce deformation to profile, concerning very important ultraprecise part.
Patent No. US4840387 proposes a kind of halfnut and chuck and to work in coordination the chucking device of tight lock, the feature of this structure is that reliability is high, manual adjustments chuck can be facilitated to tighten degree, problem is that structure is complicated a little, clamping for large-scale workpiece needs the ratio of corresponding raising device, cause the frictional force adjusted to increase, be unfavorable for assembling and be installed.
On the whole, traditional scroll chuck, multi-jaw chuck clamping device, because self is to the natural defect of workpiece discontinuity, make the damage likely surface of the work being produced to unrepairable in assembling process.Therefore, design a shortcoming that can overcome traditional chuck structure, and have that stability is high simultaneously, registration, clamping device to advantages such as workpiece surface damage are little, significant to Fine Boring manufacturing industry.
Summary of the invention
Object of the present invention is exactly for above-mentioned prior art Problems existing, and in conjunction with actual demand, design provides a kind of with bidirectionally limited external clamping type electric precise chuck, reaches and improves accurate annular workpieces crudy, object adaptable, easy to use.
Technical scheme of the present invention is:
The upper surface of stack shell is closely fixedly mounted with upper plate, the lower surface of stack shell is closely fixedly mounted with lower plate, wedge is fixedly fitted on upper plate, in stack shell Inner Constitution airtight chamber; The bar portion of piston assembly is inserted in wedge centre bore, the piston portion of piston assembly is fitted in the airtight chamber of stack shell Inner Constitution, airtight chamber is separated into the upper chamber cut off completely and lower chambers, the elastic hinge block that can radially shrink or expand is sleeved on wedge upper side external, folded spring is sleeved in piston assembly, and be positioned at stack shell upper chamber, the upper surface of described folded spring contacts with upper plate lower surface and coordinates, and the lower surface of folded spring to be contacted with the piston portion of piston assembly by packing ring and coordinates; Electric rotating machine through shaft coupling and leading screw affixed, leading screw is inserted in feed screw nut, and upper end is through stack shell lower chambers, and with the piston portion lower contacts of piston assembly, feed screw nut is fixed in lower plate center; Spacing collar is nested on elastic hinge block outside; The upper end, bar portion of piston assembly is fixedly mounted with keyset by pre-loading screw, described keyset and elastic hinge block affixed, by threaded engagement, adjustment knob is fitted on keyset, stop screw and limited post are inserted on keyset, and stop screw and limited post are threaded with wedge, so far form the bidirectionally limited external clamping type electric precise chuck of band.
The good result of technological innovation of the present invention and generation is:
Motor-driven is convenient succinct, and Machine Design and maintenance simplify greatly; Uniform force application, reduces the non-linear effects that unbalance stress produces; The Based Intelligent Control of operating rate can be realized, the easy adjustment of input and output torque and operating rate; Structure is simple, light, installation and maintenance simple, low cost of manufacture, and reliability is high, long service life, can realize buffering.
Accompanying drawing explanation
Accompanying drawing is that the bidirectionally limited external clamping type electric precise chuck entirety of band shows that structure is intended to.
Piece number in figure: 1-lower plate; 2-stack shell; 2-1 steam vent; 3-folded spring; 4-spacing collar; 5-piston assembly; 6-elastic hinge block; 7-stop screw; 8-pre-loading screw; 9-adjustment knob; 10-limited post; 11-keyset; 12-wedge; 13-packing ring; 14-upper plate; 15-feed screw nut; 16-leading screw; 17-shaft coupling; 18-electric rotating machine.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the invention is described in further detail.
With a bidirectionally limited external clamping type electric precise chuck, the upper surface of stack shell 2 is closely fixedly mounted with upper plate 14, the lower surface of stack shell 2 is closely fixedly mounted with lower plate 1, wedge 12 is fixedly fitted on upper plate 14, in stack shell 2 Inner Constitution airtight chamber; The bar portion of piston assembly 5 is inserted in wedge 12 centre bore, the piston portion of piston assembly 5 is fitted in the airtight chamber of stack shell 2 Inner Constitution, airtight chamber is separated into the upper chamber cut off completely and lower chambers, the elastic hinge block 6 that can radially shrink or expand is sleeved on wedge 12 upper side external, it is characterized in that: folded spring 3 is sleeved in piston assembly 5, and be positioned at stack shell 2 upper chamber, the upper surface of described folded spring 3 contacts with upper plate 14 lower surface and coordinates, and the lower surface of folded spring 3 is contacted with the piston portion of piston assembly 5 by packing ring 13 and coordinates; Electric rotating machine 18 is affixed through shaft coupling 17 and leading screw 16, and leading screw 16 is inserted in feed screw nut 15, and upper end is through stack shell 2 lower chambers, and with the piston portion lower contacts of piston assembly 5, feed screw nut 15 is fixed in lower plate 1 center; Spacing collar 4 is nested on elastic hinge block 6 outside; The upper end, bar portion of piston assembly 5 is fixedly mounted with keyset 11 by pre-loading screw 8, described keyset 11 is affixed with elastic hinge block 6, by threaded engagement, adjustment knob 9 is fitted on keyset 11, stop screw 7 and limited post 10 are inserted on keyset 11, and stop screw 7 and limited post 10 are threaded with wedge 12.
When operation uses, when electric rotating machine 18 rotates forward, drive leading screw 16 to move upward, folded spring 3 is compressed in piston assembly 5, and promotes piston assembly 5 and do work, drive keyset 11, elastic hinge block 6 move upward, discharged through steam vent 2-1 by the epicoele room air of stack shell 2, elastic hinge block 6 and wedge 12 are disengaged, and elastic hinge block 6 shrinks simultaneously, elastic hinge block 6 top contacts with annular workpiece, the clamping of implement device and workpiece; When electric rotating machine 18 rotates backward, folded spring 3 elastic force externally does work, promote piston assembly 5 to move downward, and then make elastic hinge block 6 and wedge 12 pressurized again, the radial component of contact surface makes elastic hinge block 6 expand outwardly, elastic hinge block 6 top and annular workpiece disengage again, and implement device is separated with workpiece.
In the outer card holder of the accurate annular workpieces of described electrodynamic type, stop screw 7 for limited piston assembly 5 movement travel upwards, and then limits the shrinkage degree of elastic hinge block 6; Adjustment knob 9 and limited post 10 with the use of, by setting the height of limited post 10 in advance, rotate adjustment knob 9 and makes the two contact, what then accurately can limit elastic hinge block 6 expands outwardly degree; When restriction does not accurately extend out degree to elastic hinge block 6 time, spacing collar 4 supplementary position-limiting actions.
Claims (1)
1. the external clamping type electric precise chuck that a band is bidirectionally limited, the upper surface of stack shell (2) is closely fixedly mounted with upper plate (14), the lower surface of stack shell (2) is closely fixedly mounted with lower plate (1), wedge (12) is fixedly fitted on upper plate (14), in stack shell (2) Inner Constitution airtight chamber, the bar portion of piston assembly (5) is inserted in wedge (12) centre bore, the piston portion of piston assembly (5) is fitted in the airtight chamber of stack shell (2) Inner Constitution, airtight chamber is separated into the upper chamber cut off completely and lower chambers, the elastic hinge block (6) that can radially shrink or expand is sleeved on wedge (12) upper side external, it is characterized in that: folded spring (3) is sleeved in piston assembly (5), and be positioned at stack shell (2) upper chamber, the upper surface of described folded spring (3) contacts with upper plate (14) lower surface and coordinates, the lower surface of folded spring (3) is contacted with the piston portion of piston assembly (5) by packing ring (13) and coordinates, electric rotating machine (18) is affixed through shaft coupling (17) and leading screw (16), leading screw (16) is inserted in feed screw nut (15), upper end is through stack shell (2) lower chambers, with the piston portion lower contacts of piston assembly (5), feed screw nut (15) is fixed in lower plate (1) center, spacing collar (4) is nested on elastic hinge block (6) outside, the upper end, bar portion of piston assembly (5) is fixedly mounted with keyset (11) by pre-loading screw (8), described keyset (11) is affixed with elastic hinge block (6), to adjust knob (9) by threaded engagement is fitted on keyset (11), stop screw (7) and limited post (10) are inserted on keyset (11), and stop screw (7) and limited post (10) are threaded with wedge (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051796.3A CN103769639B (en) | 2014-02-14 | 2014-02-14 | With bidirectionally limited external clamping type electric precise chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410051796.3A CN103769639B (en) | 2014-02-14 | 2014-02-14 | With bidirectionally limited external clamping type electric precise chuck |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103769639A CN103769639A (en) | 2014-05-07 |
| CN103769639B true CN103769639B (en) | 2015-07-29 |
Family
ID=50562656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410051796.3A Expired - Fee Related CN103769639B (en) | 2014-02-14 | 2014-02-14 | With bidirectionally limited external clamping type electric precise chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103769639B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115255420B (en) * | 2022-09-19 | 2023-01-31 | 泊头市亚奇铸业有限公司 | High-efficient processingequipment of hydraulic motor work piece |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3725714C1 (en) * | 1987-08-04 | 1988-06-23 | Guenter Horst 7927 Sontheim De Roehm | |
| CN201702404U (en) * | 2010-03-25 | 2011-01-12 | 常州比优特机械设备制造有限公司 | Expansion sleeve fixture |
| CN201702405U (en) * | 2010-06-03 | 2011-01-12 | 许国荣 | Power chuck |
| CN101920349A (en) * | 2010-09-09 | 2010-12-22 | 江苏无锡建华机床附件集团有限公司 | Back distribution type front pneumatic chuck |
| CN102873360A (en) * | 2012-10-18 | 2013-01-16 | 江苏无锡建华机床附件集团有限公司 | Bidirectional pressure maintaining pre-pneumatic chuck |
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2014
- 2014-02-14 CN CN201410051796.3A patent/CN103769639B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103769639A (en) | 2014-05-07 |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150729 Termination date: 20210214 |