CN203944863U - A kind of clamping device - Google Patents
A kind of clamping device Download PDFInfo
- Publication number
- CN203944863U CN203944863U CN201420397617.7U CN201420397617U CN203944863U CN 203944863 U CN203944863 U CN 203944863U CN 201420397617 U CN201420397617 U CN 201420397617U CN 203944863 U CN203944863 U CN 203944863U
- Authority
- CN
- China
- Prior art keywords
- expander
- mounting rod
- connector
- inner conical
- expansion
- 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
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 description 10
- 238000003754 machining Methods 0.000 description 6
- 230000037250 Clearance Effects 0.000 description 5
- 230000035512 clearance Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000001915 proofreading Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The utility model discloses a kind of clamping device, aim to provide a kind of simple in structure, convenient operation, can precisely control the clamping device to Workpiece clamping power size, its technical scheme main points are to comprise holder, expander, connector, expansion driven device, and described holder is installed with mounting rod; Described expander is set in mounting rod, and described expander and mounting rod are slidably matched; Described connector one end and expander connect, and the other end is fixedly connected with expansion driven device with expander through mounting rod; Described expander is along being radially expanded in mounting rod sliding process.
Description
Technical field
The utility model relates to field of machining, and more particularly, it relates to a kind of clamping device.
Background technology
Machine-building be unable to do without Metal Cutting Machine Tool, and jig is to ensure mechanical processing quality, enhance productivity, reduce labor intensity, reduce excessive demand to workman's technology, realize one of indispensable important process equipment of Automation of Manufacturing Process.Jig is widely used in manufacturing industry, and the use of a large amount of special jigs provides necessary condition for producing in enormous quantities.When workpiece is finished after line, installed by line with chuck in the past, reprocessed endoporus.In the process of proofreading and correct, to adjust while being clipped in two pawl on the face of cylinder, workpiece produces and rolls, and the center line in the hole that makes to rule produces angle displacement, is difficult to workpiece correction, and produces processing waste product.People have manufactured and designed fixture for this reason, and by use for many years, effect is fine.For the machining of most of product, when batch production, all need to adopt fixture to clamp, thereby carry out operation, to improve its efficiency.For circular cylinder parts fixation, often in product appearance, there is again requirement at present, often adopt the outside mode clamping all can have influence on the outward appearance of product, and the clamping device mostly using is at present all more complicated, clamping workpiece overlong time, cost is high.
Application number is that 201320796357 Chinese patent discloses a kind of expansion type clamping device, cone match is passed through in tapered block and integral type expander outside, tapered block and integral type expander inside are connected by screw, and spring fitting is between tapered block and integral type expander.Work as screw-driving, drive tapered block pressuring spring to move downward, under the effect of the outside tapering of tapered block, make integral type expander upper expansion, thereby by Workpiece clamping.When screw unclamps, under the effect of spring, promote described tapered block and move upward, thereby make described integral type expander top retracted for clearance under the effect of the outside tapering of tapered block, thereby workpiece is unclamped.This device changes realize the clamping of workpiece and unclamp by the degree of tightness of screw, but has following shortcoming:
1, integral type expander, at every turn to Workpiece clamping or to unclamp be all to want operating personnel manual by tightening or unclamping screw and could realize, operates very and bothers, and labour intensity is large.
2, integral type expander all regulates by rotary screw by operating personnel Workpiece clamping power size power, clamping force size cannot control accurate system, if crossing conference, clamping force make workpiece produce distortion, if too small cannot the reaching of clamping force stablized firm grip to workpiece, affect product quality.
Utility model content
The deficiency existing for prior art, the purpose of this utility model is to provide a kind of simple in structure, convenient operation, can precisely controls the clamping device to Workpiece clamping power size.
For achieving the above object, the utility model provides following technical scheme: a kind of clamping device, comprise holder, expander, connector, expansion driven device, and described holder is installed with mounting rod; Described expander is set in mounting rod, and described expander and mounting rod are slidably matched; Described connector one end connects with the other end of the relative holder of expander, and the other end is fixedly connected with expansion driven device with expander through mounting rod; Described expander is along being radially expanded in mounting rod sliding process.
By adopting technique scheme, workpiece is set on expander, and described expansion driven device drives connector to move inward, and described connector compresses expander, thereby drive expander to slide along mounting rod, expander is radially expanded Workpiece clamping is carried out to machining; After machining, need to unclamp workpiece, described expansion driven device drives connector outwards to move, and described connector releasing compresses expander, makes expander retracted for clearance, thereby workpiece is unclamped; This clamping device drives connector to move back and forth by expansion driven device and expander is radially expanded and retracted for clearance, controls Workpiece clamping and unclamp, and operating personnel only need control expansion driven device and drive, and convenient operation effectively reduces labour intensity; Expansion driven device can arrange Workpiece clamping power size as required, regulate the stroke size of the expansion link of expansion driven device, the distance that control connection part moves back and forth, thereby the swell increment of control expander, the physical efficiency that makes to expand is precisely controlled Workpiece clamping power size.
The utility model is further set to: the other end of the relative holder of described mounting rod is provided with male-tapered face, and the madial wall of described expander is provided with the first inner conical face, and described male-tapered face and the first inner conical face are slidably matched.
By adopting technique scheme, described expander moves along mounting rod by connector, and the first inner conical face that makes expander slides along male-tapered face, makes described expander along being radially expanded in mounting rod sliding process, simple in structure, be convenient to manufacture.
The utility model is further set to: the other end of relative the first inner conical face of described expander madial wall is provided with the second inner conical face, and described connector is arranged with taper sheath, and the lateral wall of described taper sheath and the second inner conical face are slidably matched.
By adopting technique scheme, described connector is inconsistent by taper sheath and expander, described taper sheath can slide along the second inner conical face, expander is radially expanded, make connector when moving inward under the effect of expansion driven device, the both ends of expander can be radially expanded simultaneously, carry expander and workpiece contact-making surface, increase piece-holder power.
The utility model is further set to: the first inner conical face and the second inner conical face of described expander are symmetrical arranged, and both taperings are identical.
By adopting technique scheme, make the radial expansion volume at expander two ends identical, improve expander and piece-holder effect.
The utility model is further set to: the two ends of the sidewall of described expander are equipped with several expansion grooves, and this expansion groove is uniformly distributed and is crisscross arranged successively along expander circumferencial direction.
By adopting technique scheme, described expander is along mounting rod sliding process, be convenient to expander under mounting rod effect to being radially expanded, simple in structure being convenient to manufactured.
The utility model is further set to: described expansion driven device is air cylinder driven device or hydraulic oil cylinder driving device.
By adopting technique scheme, air cylinder driven device or hydraulic oil cylinder driving device, be convenient to regulate stroke, draws materials conveniently, reduces manufacturing cost.
The utility model is further set to: the expansion link of described expansion driven device is threaded with connector.
By adopting technique scheme, be convenient to expansion driven device and connector assembling and dismounting, reduce manufacturing cost.
Brief description of the drawings
Fig. 1 is the cutaway view of a kind of clamping device of the utility model;
Fig. 2 is the structural representation of expander in Fig. 1;
Fig. 3 is the cutaway view of expander in Fig. 1;
Fig. 4 is the cutaway view of holder and mounting rod;
Fig. 5 is the cutaway view of connector in Fig. 1.
In figure 1, holder; 2, expander; 21, the first inner conical face; 22, the second inner conical face; 23, expansion groove; 3, connector; 31, flange; 32, connecting rod; 4, expansion driven device; 5, mounting rod; 51, male-tapered face; 6, taper sheath.
Detailed description of the invention
Referring to figs. 1 through Fig. 5, a kind of clamping device of the utility model is described further.
A kind of clamping device, comprises holder 1, expander 2, connector 3, expansion driven device 4, and described expansion driven device 4 can be air cylinder driven device or hydraulic oil cylinder driving device, and described holder 1 is installed with mounting rod 5, wherein mounting rod 5 can be by being fixed on holder 1, or holder 1 and the integrally manufactured shaping of mounting rod 5, described mounting rod 5 and holder 1 are provided with the through hole that is connected, described connector 3 is made up of flange 31 and connecting rod 32, connecting rod 32 arranges through hole through mounting rod 5 with holder 1 and is fixedly connected with the telescopic shaft of expansion driven device 4, assemble and dismantle for the ease of expansion driven device 4 and connector 3, the expansion link of described expansion driven device 4 is threaded and makes with connector 3, make the flange 31 on connector 3 connect with the expander 2 being set on mounting rod 5 simultaneously.
The other end of described mounting rod 5 relative holders 1 is provided with male-tapered face 51, the madial wall of described expander 2 is provided with the first inner conical face 21, described male-tapered face 51 and the first inner conical face 21 are slidably matched, the other end of relative the first inner conical face 21 of described expander 2 madial walls is provided with the second inner conical face 22, described connector 3 is arranged with taper sheath 6, the lateral wall of described taper sheath 6 and the second inner conical face 22 are slidably matched, flange 31 on connector 3 is connected by taper sheath 6 and expander 2, when described expander 2 moves along mounting rod 5 by connector 3, the first inner conical face 21 of expander 2 is slided along male-tapered face 51, make described expander 2 along being radially expanded in mounting rod 5 sliding processes, described taper sheath 6 can slide along the second inner conical face 22 simultaneously, expander 2 is also radially expanded, make connector 3 when moving inward under expansion driven device 4 effect, the both ends of expander 2 can be radially expanded simultaneously, improve expander 2 and workpiece contact-making surface, in order further to improve contact-making surface, the first inner conical face 21 and the second inner conical face 22 of described expander 2 are symmetrical arranged, and both taperings are identical, make the radial expansion volume at expander 2 two ends identical, improve expander 2 and piece-holder effect.
The two ends of the sidewall of wherein said expander 2 are equipped with several expansion grooves 23, groove 23 width that wherein expand are 1～2MM, this expansion groove 23 is uniformly distributed and is crisscross arranged successively along expander 2 circumferencial directions, described expander 2 is along mounting rod 5 sliding processes, be convenient to expander 2 under mounting rod 5 effect to being radially expanded, simple in structure being convenient to manufactured.
Operation principle: workpiece is set on expander 2, described expansion driven device 4 drives connector 3 to move inward, described connector 3 compresses expander 2, thereby drives expander 2 to slide along mounting rod 5, expander 2 is radially expanded Workpiece clamping is carried out to machining; After machining, need to unclamp workpiece, described expansion driven device 4 drives connector 3 outwards to move, and described connector 3 is removed the compressing of expander 2, and makes expander 2 retracted for clearance, thereby workpiece is unclamped; This clamping device drives connector 3 to move back and forth by expansion driven device 4 and expander 2 is radially expanded and retracted for clearance, controls Workpiece clamping and unclamp, and operating personnel only need control expansion driven device 4 and drive, and convenient operation effectively reduces labour intensity; Expansion driven device 4 can arrange Workpiece clamping power size as required, regulate the stroke size of the expansion link of expansion driven device 4, the distance that control connection part 3 moves back and forth, thus the swell increment of control expander 2 can precisely be controlled to Workpiece clamping power size expander 2.
Claims (7)
1. a clamping device, comprises holder, expander, it is characterized in that: also comprise connector, expansion driven device, described holder is installed with mounting rod; Described expander is set in mounting rod, and described expander and mounting rod are slidably matched; The other end and connector one end of the relative holder of described expander connect, and the connector other end is fixedly connected with expansion driven device with expander through mounting rod; Described expander is along being radially expanded in mounting rod sliding process.
2. a kind of clamping device according to claim 1, is characterized in that: the other end of the relative holder of described mounting rod is provided with male-tapered face, and the madial wall of described expander is provided with the first inner conical face, and described male-tapered face and the first inner conical face are slidably matched.
3. a kind of clamping device according to claim 2, it is characterized in that: the other end of relative the first inner conical face of described expander madial wall is provided with the second inner conical face, described connector is arranged with taper sheath, and the lateral wall of described taper sheath and the second inner conical face are slidably matched.
4. a kind of clamping device according to claim 3, is characterized in that: the first inner conical face and the second inner conical face of described expander are symmetrical arranged, and both taperings are identical.
5. according to a kind of clamping device described in claim 1,2,3 or 4, it is characterized in that: the two ends of the sidewall of described expander are equipped with several expansion grooves, this expansion groove is uniformly distributed and is crisscross arranged successively along expander circumferencial direction.
6. according to a kind of clamping device described in claim 1,2,3 or 4, it is characterized in that: described expansion driven device is air cylinder driven device or hydraulic oil cylinder driving device.
7. a kind of clamping device according to claim 6, is characterized in that: the expansion link of described expansion driven device is threaded with connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397617.7U CN203944863U (en) | 2014-07-17 | 2014-07-17 | A kind of clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420397617.7U CN203944863U (en) | 2014-07-17 | 2014-07-17 | A kind of clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203944863U true CN203944863U (en) | 2014-11-19 |
Family
ID=51886922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420397617.7U Expired - Fee Related CN203944863U (en) | 2014-07-17 | 2014-07-17 | A kind of clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203944863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551072A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Dual-cone inclined wedge self-centering clamp |
-
2014
- 2014-07-17 CN CN201420397617.7U patent/CN203944863U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104551072A (en) * | 2014-12-12 | 2015-04-29 | 安徽白兔湖动力股份有限公司 | Dual-cone inclined wedge self-centering clamp |
| CN104551072B (en) * | 2014-12-12 | 2017-06-30 | 安徽白兔湖动力股份有限公司 | Bipyramid wedge self-centering fixture |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141119 Termination date: 20180717 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |