CN204524916U - Clamping device - Google Patents
Clamping device Download PDFInfo
- Publication number
- CN204524916U CN204524916U CN201420622369.1U CN201420622369U CN204524916U CN 204524916 U CN204524916 U CN 204524916U CN 201420622369 U CN201420622369 U CN 201420622369U CN 204524916 U CN204524916 U CN 204524916U
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- China
- Prior art keywords
- slide block
- clamping device
- annular seal
- drive unit
- seal space
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Abstract
The utility model relates to a kind of clamping device, holding workpiece is coordinated with workbench, comprise drive unit, the compression gearshift be connected with drive unit, drive unit drives compression gearshift to move towards workbench direction, compress gearshift and comprise the slide block be connected with drive unit, be formed in the annular seal space in slide block, and to be arranged on slide block and to coordinate the compression plunger of holding workpiece with workbench, slide block at least offers two to be communicated with annular seal space respectively and towards the opening of workbench, compress plunger sealed open and can slide by opposed open, this device by arranging annular seal space in slide block, slide block is at least offered two openings be communicated with sealing chamber respectively, and on opening arrange can opposed open slide compression plunger, thus the clamping of multiple spot multidigit can be realized, hinge structure, this structure is more simply compact, easy to use, good rigidly, again when clamping work pieces, even clamping work pieces can be realized, be particularly suitable for some rough workpiece.
Description
Technical field
The utility model relates to a kind of clamping device, belongs to press technologies field.
Background technology
No matter be traditional machinery manufacturing industry, or modern mechanical manufacturing industry, the effect of jig is all very important.And the core of jig, be then clamping device.
In Practical Project uses, often can run into rough workpiece needs to implement clamping, or multiple workpiece needs to implement clamping simultaneously.In Precision Machining operation, in order to reduce the contact stress between clamping element and workpiece to be clamped surface, especially need to use multiple spot all to press clamping device.Current existing clamping device is generally utilize plural serial stage lever to realize the clamping of multiple spot multidigit, but so, the mechanism used is just very lengthy and tedious, and structure is very not compact, and rigidity is also good not.
In addition, existing clamping device generally uses hydraulic drive and Pneumatic Transmission.Adopt hydraulic drive inevitably can produce leakage and the volatilization of fluid, very large pollution is caused to environment; The leakage of fluid and the compressibility of liquid can affect the accuracy of actuator movement; Producing larger energy loss (as leakage loss, friction loss etc.) in hydraulic drive can cause transmission efficiency lower; Do not have the Hydraulic Power Transmission System of accumulator pressurize, in the cutting process after clamping, hydraulic pump still needs running, and to keep the clamping force to clamped workpiece, this makes energy loss high.Pneumatic Transmission also has a comparatively fatal shortcoming, i.e. the as easy as rolling off a log leakage of Compressed Gas, thus causes its operating pressure lower (being generally 0.4 ~ 0.7MPa).In the occasion requiring clamping force larger, often cause the volume of fixture too huge, to such an extent as to engineering structure cannot be born.The theory of this and current advocated Green design and green manufacturing is inconsistent.
In view of this, be necessary to be improved further to solve the problem to existing clamping device.
Utility model content
The purpose of this utility model is to provide a kind of simple and compact for structure, easy to use, the clamping device of good rigidly.
To achieve these goals, the utility model provides following technical scheme: a kind of clamping device, holding workpiece is coordinated with workbench, comprise drive unit, the compression gearshift be connected with drive unit, described drive unit drives described compression gearshift to move towards workbench direction, described compression gearshift comprises the slide block be connected with described drive unit, be formed in the annular seal space in slide block, and to be arranged on described slide block and to coordinate the compression plunger of holding workpiece with described workbench, described slide block at least offers two to be communicated with annular seal space respectively and towards the opening of workbench, opening described in described compression plunger seal and can relatively described opening sliding, described drive unit comprises power source, be connected with described power source and the worm screw driven by power source, the worm gear coordinated with described worm screw, and connect the toggle of described worm gear and slide block, one end of described toggle is connected to worm gear, the other end is fixed to slide block, described toggle has the connecting portion be connected with worm screw, described connecting portion is offset to the side in the center of circle of worm gear.
Further, dielectric fluid force feed is filled with in described annular seal space.
Further, described slide block also offers the inlet be communicated with described annular seal space, described inlet is by sealing segment hub seal.
Further, the both sides of described slide block are provided with location-plate, and described location-plate is parallel to the moving direction of slide block.
Further, the side of described slide block is provided with pressure switch, and described pressure switch is connected with described annular seal space and detects the force value in annular seal space, and described pressure switch is connected with power source and drives power source to start.
Further, described worm gear is two that are oppositely arranged on worm screw both sides, and described toggle is for be connected two by two worm gears with slide block respectively.
Further, described power source is servomotor.
Further, between described power source and worm screw, shaft coupling is installed.
Further, described worm gear is fixed by the center of circle of fixed mount by worm gear.
By such scheme, the utility model at least has the following advantages: by arranging annular seal space in slide block, and slide block is at least offered two openings be communicated with sealing chamber respectively, and on opening arrange can opposed open slide compression plunger, thus the clamping of multiple spot multidigit can be realized, hinge structure, this structure is more simply compact, easy to use, good rigidly, again when clamping work pieces, even clamping work pieces can be realized, be particularly suitable for some rough workpiece.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of description, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is the clamping device shown in the utility model one embodiment and the structural representation of workbench when holding workpiece.
Detailed description of the invention
Below in conjunction with drawings and Examples, detailed description of the invention of the present utility model is described in further detail.Following examples for illustration of the utility model, but are not used for limiting scope of the present utility model.
Refer to Fig. 1, the clamping device 10 shown in the utility model one embodiment is in order to coordinate holding workpiece 30 with workbench 20.Described clamping device 10 comprises drive unit 1, be connected with drive unit 1 and coordinate the compression gearshift 2 of holding workpiece 30 with workbench 20, and this drive unit 1 drives and compresses gearshift 2 and move to coordinate holding workpiece 30 with workbench 20 towards workbench 20 direction.
Described drive unit 1 comprises power source 11, be connected with described power source 11 and the worm screw 12 driven by power source 11, the worm gear 13 coordinated with described worm screw 12 and be connected the toggle 14 of described worm gear 13 and drive unit 1.Described power source 11 adopts servomotor, is provided with shaft coupling 15 between servomotor 11 and worm screw 12, and this servomotor 11, worm screw 12 and shaft coupling 15 are coaxially arranged.Described worm gear 13 is fixed by the center of circle of fixed mount 16 by worm gear 13.One end of described toggle 14 is connected with worm gear 13, and the other end is connected with compression gearshift 2.Toggle 14 has the connecting portion 241 be connected with worm gear 13, and this connecting portion 241 is offset to the side in the center of circle of worm gear 13, and worm gear 13 is fixed by the center of circle of fixed mount 16 by worm gear 13, the power of worm gear 13 to be amplified by toggle 14.Described worm gear 13 is for being oppositely arranged on two of worm screw 12 both sides, and toggle 14 is two that are connected with drive unit 1 by two worm gears 13 respectively, to improve stability, and contributes to the power of worm gear 13 being amplified further.
Because Worm Wheel System is for transmitting the gyration between spatial intersecting axle, it has compact conformation, stable working, noiseless, self-locking performance is good, gearratio is large and worm gear 13 can obtain the advantages such as accurate very little rotation.So, in the present embodiment, adopt worm screw 12, worm gear 13, certainly, in other embodiments, other also can be adopted to be drive mechanisms.
Described compression gearshift 2 comprises the slide block 21 be connected with described toggle 14, the compression plunger 23 being formed in the annular seal space 22 in slide block 21 and being arranged on described slide block 21.Described slide block 21 drives movement by toggle 14.Described compression plunger 23 coordinates holding workpiece 30 with workbench 20, slide block 21 offers five to be communicated with annular seal space 22 respectively and towards the opening 211 of workbench 20, compress plunger 23 sealed open 211 and can slide by opposed open 211, by compressing the slip of plunger 23 in opening 211, to coordinate clamping work pieces 30 with workbench 20.Because opening 211 is communicated with annular seal space 22, when one of them the compression plunger 23 on opening 211 moves, in order to reach energy balance in annular seal space 22, other compress plungers 23 and also can finely tune simultaneously in addition, thus are conducive to each compression plunger 23 and are uniformly applied on workpiece 30 with identical active force.These five compress plunger 23 and can clamp a workpiece 30 simultaneously, or each independent clamping workpiece 30.This opening 211 and compression plunger 23 can be arranged to other quantity according to the actual requirements.In the present embodiment, dielectric fluid force feed 24 is filled with in described annular seal space 22.Described compression gearshift 2 is arranged on the top of workbench 20, and drive unit 1 is arranged on the top of slide block 21, and the servomotor 11 of drive unit 1 is vertically arranged on the top of slide block 21.The left and right sides of slide block 21 is also provided with location-plate 25, and this location-plate 25 is parallel to the moving direction of slide block 21, by location-plate 25 in case limited slip block 21 double swerve, slide block 21 is moved more steady.Certainly, in other embodiments, also other media can be filled in sealing chamber 22, as being water or gas etc., this drive unit 1 also can horizontally set etc., slide block 21 can be arranged according to the concrete putting position of workbench 20, as placed when workbench 20 side direction, then and slide block 21 also side direction placement.Described slide block 21 also offers the inlet 26 be communicated with described annular seal space 22, described inlet 26 is sealed by sealing screw rod 27.
The side of described slide block 21 is also provided with pressure switch 3, and pressure switch 3 is connected with annular seal space 22, and detect the force value in annular seal space 22, pressure switch 3 is connected with power source 11 and drives power source 11 to start.In the present embodiment, the pressure values of this pressure switch 3 Real-Time Monitoring annular seal space 22 medium hydraulic oil 24, and by the result feedback that monitors to control centre (not shown), then drive servomotor 11 to run by control centre.
The operation principle of this clamping device 10 is as follows: after servomotor 11 rotates forward, drive worm screw 12 to rotate through shaft coupling 15, worm screw 12 drives again the worm gear 13 being distributed in its both sides to rotate.When worm gear 13 rotates, carry out power amplification through toggle 14, be delivered to rectilinear motion slide block 21 making slide block 21 do from top to bottom, by slide block 21 power output.Slide block 21 inside is annular seal space, dielectric fluid force feed 24 is filled with in it, five compression plungers 23 are inner inconsistent with this dielectric fluid force feed 24, when wherein first certain compression plunger 23 touches workpiece 30, transferring the pressure to other by dielectric fluid force feed 24 compresses on plunger 23, promote other compression plungers 23 to move downward, and then make other compression plunger 23 contact workpiece 30, realize all pressing clamping work pieces 30.Due to the floating action of dielectric fluid force feed 24, can ensure that compressing plunger 23 evenly applies pressure to workpiece 30 with identical active force, or apply different workpiece 30 with identical active force.After workpiece 30 machines, servomotor 11 reverses, and drives worm screw 12 to reversely rotate through shaft coupling 15, just can change the direction of rotation of two worm gears 13 in left and right, such toggle 14 can drive the slide block 21 of lower end to make movement output from bottom to top, unclamps the workpiece 30 of clamping.
In sum, above-mentioned clamping device 10 tool has the following advantages:
1, above-mentioned clamping device 10 is by adopting worm screw 12, worm gear 13, and worm gear 13 is connected by toggle 14 with slide block 21, so, the rotary motion exported when servomotor 11 drives worm gear 13 to rotate through worm screw 12, by the toggle 14 be hinged on worm gear 13, power is amplified, exported by slide block 21 again, such that this clamping device 10 is simple and compact for structure, transmission efficiency is high.Carried out the amplification of power by toggle 14, the rated power of servomotor 11 can be reduced.
2, hinge structure, this clamping device 10 discards the hydraulic pump in conventional hydraulic design, rotarily drives worm screw 12 worm gear 13 rotate by servomotor 11, then by toggle 14, slide block 21 is taken exercises output.Than the clamping device that existing hydraulic pressure is traditional, decrease the noise pollution that hydraulic pump produces, energy utilization rate is corresponding improve also.
3, because the annular seal space 22 being filled with dielectric fluid force feed 24 is closed, make whole clamping device 10 can not to environment.
4, by adopting the transmission of worm screw 12 worm gear 13, and itself there is self-locking action due to worm screw 12 worm gear 13, in the process implementing Output pressure, its auto-lock function can be utilized can to make clamping device 10 no longer consumed energy, namely servomotor 11 does not need to work always, and energy-saving effect is remarkable.
5, pressure switch 3 is connected with annular seal space 22, and detect the pressure values of the dielectric fluid force feed 24 in annular seal space 22, the signal output part of pressure switch 3 is connected with control centre.Like this, pressure switch 3 can the pressure values of Real-Time Monitoring close encapsulation chamber 22 medium hydraulic oil 24, and then realizes controlling servomotor 11, reaches object accurately of moving.
6, by arranging annular seal space 22 in slide block 21, slide block 21 is at least offered two openings 211 be communicated with sealing chamber 22 respectively, and on opening 211 arrange can opposed open 211 slide compression plunger 23, thus can realize multiple spot multidigit clamping, hinge structure, this structure is more simply compact, easy to use, good rigidly, again when clamping work pieces 30, even clamping work pieces 30 can be realized, be particularly suitable for some rough workpiece 30.
The above is only preferred embodiment of the present utility model; be not limited to the utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model know-why; can also make some improvement and modification, these improve and modification also should be considered as protection domain of the present utility model.
Claims (9)
1. a clamping device, holding workpiece is coordinated with workbench, comprise drive unit, the compression gearshift be connected with drive unit, described drive unit drives described compression gearshift to move towards workbench direction, it is characterized in that: described compression gearshift comprises the slide block be connected with described drive unit, be formed in the annular seal space in slide block, and to be arranged on described slide block and to coordinate the compression plunger of holding workpiece with described workbench, described slide block at least offers two to be communicated with annular seal space respectively and towards the opening of workbench, opening described in described compression plunger seal and can relatively described opening sliding, described drive unit comprises power source, be connected with described power source and the worm screw driven by power source, the worm gear coordinated with described worm screw, and connect the toggle of described worm gear and slide block, one end of described toggle is connected to worm gear, the other end is fixed to slide block, described toggle has the connecting portion be connected with worm screw, described connecting portion is offset to the side in the center of circle of worm gear.
2. clamping device according to claim 1, is characterized in that: be filled with dielectric fluid force feed in described annular seal space.
3. clamping device according to claim 1, is characterized in that: described slide block also offers the inlet be communicated with described annular seal space, and described inlet is by sealing segment hub seal.
4. clamping device according to claim 1, is characterized in that: the both sides of described slide block are provided with location-plate, and described location-plate is parallel to the moving direction of slide block.
5. clamping device according to claim 4, it is characterized in that: the side of described slide block is provided with pressure switch, described pressure switch is connected with described annular seal space and detects the force value in annular seal space, and described pressure switch is connected with power source and drives power source to start.
6. clamping device according to claim 4, is characterized in that: described worm gear is two that are oppositely arranged on worm screw both sides, and described toggle is for be connected two by two worm gears with slide block respectively.
7. clamping device according to claim 4, is characterized in that: described power source is servomotor.
8. clamping device according to claim 4, is characterized in that: be provided with shaft coupling between described power source and worm screw.
9. clamping device according to claim 4, is characterized in that: described worm gear is fixed by the center of circle of fixed mount by worm gear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622369.1U CN204524916U (en) | 2014-10-24 | 2014-10-24 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420622369.1U CN204524916U (en) | 2014-10-24 | 2014-10-24 | Clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204524916U true CN204524916U (en) | 2015-08-05 |
Family
ID=53738967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420622369.1U Expired - Fee Related CN204524916U (en) | 2014-10-24 | 2014-10-24 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204524916U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975947A (en) * | 2017-05-31 | 2017-07-25 | 宿州学院 | A kind of grip device of reasonable in design |
| CN110193770A (en) * | 2019-06-28 | 2019-09-03 | 吴廷福 | Polissoir is used in a kind of novel Hardware fitting processing |
-
2014
- 2014-10-24 CN CN201420622369.1U patent/CN204524916U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975947A (en) * | 2017-05-31 | 2017-07-25 | 宿州学院 | A kind of grip device of reasonable in design |
| CN106975947B (en) * | 2017-05-31 | 2019-01-29 | 宿州学院 | A kind of grip device |
| CN110193770A (en) * | 2019-06-28 | 2019-09-03 | 吴廷福 | Polissoir is used in a kind of novel Hardware fitting processing |
| CN110193770B (en) * | 2019-06-28 | 2020-12-04 | 赣州市诚博机械设备有限公司 | Novel polishing equipment for hardware fitting machining |
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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: 20150805 Termination date: 20201024 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |