CN202964457U - Mechanical clamping device based on lead screw-shed stick force-amplifier - Google Patents
Mechanical clamping device based on lead screw-shed stick force-amplifier Download PDFInfo
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- CN202964457U CN202964457U CN 201220513684 CN201220513684U CN202964457U CN 202964457 U CN202964457 U CN 202964457U CN 201220513684 CN201220513684 CN 201220513684 CN 201220513684 U CN201220513684 U CN 201220513684U CN 202964457 U CN202964457 U CN 202964457U
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- mechanical gripping
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Abstract
A mechanical clamping device based on a lead screw-shed stick force-amplifier comprises a screw rod driving device, a shed stick force amplification device and a pressure plate, wherein the shed stick force amplification device comprises a force amplification rod and a force application rod; the force amplification rod and the force application rod can be movably hinged to the screw rod driving device through a connecting sheet in the horizontal direction; the pressure plate is hinged to the force application rod, and movably arranged in a vertical guide rail in the vertical direction, and a clamping surface of the pressure plate is exposed. By adding a set of shed stick force amplification device, force on an original lead screw is subjected to secondary amplification, and the mechanical clamping reliability is increased.
Description
Technical field
The utility model relates to a kind of mechanical gripping means, is mainly a kind of mechanical gripping means based on leading screw-shed stick force-increasing mechanism.
Background technology
In present mechanical gripping means, as the drive unit that clamping force is provided, be mainly surge, pneumatic and Mechanical Driven is main.A major defect that surges is that the leakage of hydraulic oil liquid medium causes environmental pollution; Pneumatic major defect is that system pressure is lower, generally can only reach 0.5MPa-0.7MPa; The technical problem underlying that the Mechanical Driven clamping device exists is: automatization level is lower, and the element of using in mechanism is more, thereby makes integrated model seem very complicated.
Along with factors such as automaticity height, the mechanical gripping means of environmental type more and more is subject to people's favor, and people begin to try every possible means to solve the shortcoming that exists in above-mentioned mechanical gripping means.
Someone proposes a kind of clamping device based on screw mechanism.See also Fig. 1, Fig. 1 is a kind of existing screw rod type Mechanical Driven clamping device, and this clamping device comprises leading screw 1, servomotor 2 and platen 3, and wherein servomotor 2 provides driving force, by rotating threaded shaft 1, platen 3 is moved, pressed object thereby make platen 3 to clamp or to unclamp.The clamping device of this screw mechanism, advantage are simple in structure, and it is convenient to control, and only need to control rotary speed and the time of servomotor 2, just can accurately control the dynamics of pressing the space of clamping device.Shortcoming is owing to only having this a kind of force-increasing mechanism of leading screw, so the clamping force of output is less, generally is used for workpiece occasion hour.
For addressing the above problem, design and a kind ofly export that clamping force is large, automaticity is high and the mechanical gripping means of economic environmental protection, have great significance for improving the machine-building level.
In view of this, the utility model uses screw mechanism and Toggle Force Amplifier and servomotor to design a kind of novel mechanical gripping means.
The utility model content
Goal of the invention of the present utility model is to provide a kind of take leading screw as the main bilateral device of mechanical grip, by structure is improved, good stability, clamps the large and economic environmental protection of power output, and can bilaterally clamp simultaneously two workpiece, enhances productivity.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of mechanical gripping means, comprise lead-screw driving device, shed stick step-up system, and platen, described shed stick step-up system comprises reinforcement bar and force application rod, and both are articulated on described lead-screw driving device in the horizontal direction by a connecting piece actively, and described platen is hinged on described force application rod, this platen actively is arranged in a upright guide rail at vertical direction, and exposes the clamping area of this platen.
Further, an end of described reinforcement bar is hinged on a stationary plane, forms the fixed point rotary structure.
Further, described lead-screw driving device comprises servomotor, shaft coupling, leading screw and feed screw nut, described leading screw is connected on servomotor by shaft coupling, this leading screw be connected feed screw nut and intert connection by screw thread, this feed screw nut is hinged on brace simultaneously.
Further, described feed screw nut is arranged in a horizontal guide rail in the horizontal direction actively.
Further, this mechanical gripping means also comprises motor control assembly, is connected on described servomotor.
further, above-mentioned mechanical gripping means also can be designed to bilateral clamping device, should comprise lead-screw driving device by the bilateral clamping device of machinery this moment, and two the cover symmetrical shed stick step-up system and the platen that is arranged at described lead-screw driving device both sides, the shed stick step-up system of described each side comprises reinforcement bar and force application rod, both are articulated on described lead-screw driving device by a connecting piece in the horizontal direction actively, described platen is hinged on described force application rod, this platen actively is arranged in a upright guide rail at vertical direction, and expose the clamping area of this platen.
Further, described lead-screw driving device comprises servomotor and two symmetrical shaft coupling, leading screw and the feed screw nuts that are arranged at described servomotor both sides of cover, the leading screw of described each side is connected on servomotor by shaft coupling, this leading screw be connected feed screw nut and intert connection by screw thread, this feed screw nut is hinged on the brace of a corresponding side simultaneously.
Further, described symmetrical two leading screws are respectively left-handed leading screw and dextrorotation leading screw.
The course of work of mechanical gripping means of the present utility model is as follows:
(1) motor control assembly sends an instruction to servomotor, and motor begins to rotate, and drives leading screw by shaft coupling and rotates simultaneously;
(2) two leading screws left-handed and dextral motion of difference under the effect of shaft coupling, itself also carries out power amplification for the first time;
(3) power output is by the transmission of connecting rod, and conduction is to Toggle Force Amplifier mechanism, and this moment, pressure angle α diminished gradually, and the reinforcement bar carries out power amplification for the second time;
(4) the reinforcement bar is delivered to power on platen by force application rod, and platen carries out operation to workpiece;
(5) after work was completed, motor control assembly sent instruction, and servomotor reverses rapidly, and all elements all reset, and complete a process.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. the servo electric rotating machine of the utility model employing is power source, compares with hydraulic pressure, Pneumatic Transmission, has having a few of green non-pollution, and is connected with motor control assembly, easily is automated.
2. the utility model uses leading screw, has improved the synchronism of mechanical gripping means together with motor control assembly, and with the several composite applications of Toggle Force Amplifier, improved the clamping force of device.
3. use the step-up systems such as Toggle Force Amplifier mechanism and screw mechanism in the utility model, improved the clamping force of mechanical gripping means.
4. in the utility model, the left and right leading screw adopts left-handed and dextrorotation, has guaranteed left and right rectilinear motion simultaneously, and Toggle Force Amplifier mechanism adopts and is arranged symmetrically with, and the mechanical gripping means symmetry that makes is attractive in appearance.
5. the employing bilateral structure, can clamp two workpiece simultaneously, enhances productivity.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or description of the Prior Art, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the mechanical clamping device that existing a kind of leading screw drives;
Fig. 2 is the mechanical gripping means of the utility model the first embodiment;
Fig. 3 is the mechanical gripping means of the utility model the second embodiment.
The specific embodiment
Embodiment one
See also Fig. 2, Fig. 2 is the mechanical gripping means of the utility model the first embodiment.As shown in the figure, what at first present embodiment disclosed is a kind of monolateral mechanical gripping means, and this mechanical gripping means comprises be used to the drive system that mechanical grip power is provided with for the platen 30 that mechanical grip power is applied on workpiece.Drive system comprises lead-screw driving device and shed stick step-up system, and this lead-screw driving device mainly provides the power source, and the power that this shed stick step-up system plays Jiang Liyuan to be provided is amplified.Wherein, lead-screw driving device comprises servomotor 21, shaft coupling 22, leading screw 23 and feed screw nut 24, leading screw 23 is connected on servomotor 21 by shaft coupling 22, leading screw 23 is provided with screw thread, this leading screw 23 is connected with feed screw nut and is interted connection by screw thread, feed screw nut 24 is arranged in a horizontal guide rail 25, and can do moving left and right on horizontal direction in this horizontal guide rail 25.Servomotor 21 is connected with the motor control assembly (not shown) of an outside, and this motor control assembly is exported to servomotor 21 and started and shutdown signal.When servomotor 21 received enabling signal, motor began to rotate, and drove leading screw 23 and rotated.Leading screw 23 moves left and right in the horizontal direction by left-handed (or dextrorotation) promotion feed screw nut 24 of screw thread.
The shed stick step-up system comprises reinforcement bar 11 and force application rod 12, and both are articulated on described lead-screw driving device in the horizontal direction by a connecting piece 13 actively.One end of reinforcement bar 11 is hinged on a stationary plane, forms the fixed point rotary structure, and this reinforcement bar 11 is during with this fixed point rotary, with the angle mineralization pressure angle α on vertical direction.The one hinged platen 30 of end of force application rod 12, this platen 30 actively is arranged in a upright guide rail 31 at vertical direction, and exposes the clamping area 32 of this platen 30.The hinged end of reinforcement bar 11 and force application rod 12 is simultaneously hinged with brace 15 again, and 15 of braces are hinged on feed screw nut 24.Under the drive of leading screw 23 during in horizontal motion, reinforcement bar 11 is driven around fixed point rotary when feed screw nut 24, and pressure angle α also increases thereupon or reduces, and force application rod 12 promotes platen 30 downwards or rises under the synergy of brace 15 and reinforcement bar 11.
The specific works process of present embodiment is as described below:
(1) servomotor is in off-position, and Toggle Force Amplifier is in pressure angle α maximum rating, and platen 30 is in original state;
(2) motor control assembly sends work order to servomotor 21, and this moment, motor began rotation, drives leading screw 23 by shaft coupling 22 and begins rotation, and leading screw 23 changes moment into power output;
(3) lead-screw driving device passes to brace 15 with cross force by feed screw nut 24, and brace 15 outputs to power on reinforcement bar 11 and force application rod 12, promotes Toggle Force Amplifier and outwards moves;
When (4) reinforcement bar 11 outwards moved, pressure angle α diminished gradually, and Toggle Force Amplifier has carried out power amplification for the second time, then power output is delivered on force application rod 12, and at this moment, force application rod 12 drives platen 30, fast downward clamping work pieces is completed the clamping course of work;
(5) after the process of finishing the work, motor control assembly sends instruction, servomotor 21 counter-rotatings, and at this moment, leading screw 23 also begins counter-rotating, drives feed screw nut 24 and moves inwards;
(6) drive two toggle mechanisms by feed screw nut 24, pressure angle α slowly becomes greatly, and drive force application rod 12 platens 30 slowly reset.Complete a complete course of work.
Embodiment two
See also Fig. 3, Fig. 3 is the mechanical gripping means of the utility model the second embodiment.As shown in the figure, what present embodiment disclosed is a kind of bilateral mechanical gripping means, comprises lead-screw driving device and two symmetrical shed stick step-up system and the platens 30,30 ' that are arranged at described lead-screw driving device both sides of cover.Identical with embodiment one is, lead-screw driving device is responsible for providing power source, shed stick step-up system to be responsible for the power in power source is amplified and offered platen, and platen is applied to the power that is subject on workpiece again, thereby plays the effect of stepping up.
Wherein lead-screw driving device comprises servomotor 21 and the symmetrical shaft coupling 22,22 ' that is arranged at described servomotor 21 both sides of two covers, leading screw 23,23 ' and feed screw nut 24,24 '.Take in the left side as example, leading screw 23 is connected on servomotor 21 by shaft coupling 22, leading screw 23 is provided with screw thread, this leading screw 23 is connected with feed screw nut and is interted connection by screw thread, feed screw nut 24 is arranged in a horizontal guide rail 25, and can do moving left and right on horizontal direction in this horizontal guide rail 25, this feed screw nut 24 is hinged on the brace 15 of a corresponding side simultaneously.Servomotor 21 is connected with the motor control assembly (not shown) of an outside, and this motor control assembly is exported to servomotor 21 and started and shutdown signal.When servomotor 21 received enabling signal, motor began to rotate, and drove leading screw 23 and rotated.Leading screw 23 moves left and right in the horizontal direction by left-handed (or dextrorotation) promotion feed screw nut 24 of screw thread.The shaft coupling 22 ' on right side, leading screw 23 ', feed screw nut 24 ' and horizontal guide rail 25 ' are symmetrical arranged with the left side, repeat no more herein.Screw thread on leading screw 23 on the left of it is pointed out that and the leading screw 23 ' on right side is respectively left-handed leading screw and dextrorotation leading screw, when servomotor 21 rotates, has synchronous rising or down maneuver by making two platens in left and right like this.
Left and right two cover shed stick step-up systems comprise respectively reinforcement bar 11,11 ' and force application rod 12,12 ', and take the left side as example, reinforcement bar 11 and force application rod 12 are articulated on described lead-screw driving device in the horizontal direction by brace 15 actively.One end of reinforcement bar 11 is hinged on a stationary plane, forms the fixed point rotary structure, and this reinforcement bar 11 is during with this fixed point rotary, with the angle mineralization pressure angle α on vertical direction.The one hinged platen 30 of end of force application rod 12, this platen 30 actively is arranged in a upright guide rail 31 at vertical direction, and exposes the clamping area 32 of this platen 30.The hinged end of reinforcement bar 11 and force application rod 12 is simultaneously hinged with brace 15 again, and 15 of braces are hinged on feed screw nut 24.Under the drive of leading screw 23 during in horizontal motion, reinforcement bar 11 is driven around fixed point rotary when feed screw nut 24, and pressure angle α also increases thereupon or reduces, and force application rod 12 promotes platen 30 downwards or rises under the synergy of brace 15 and reinforcement bar 11.And the connected mode of the reinforcement bar 11 ' on right side, force application rod 12 ', brace 15 ' and platen 30 ' and upright guide rail 31 ' and left side are symmetrical, repeat no more herein.
The specific works process of present embodiment is as described below:
(1) servomotor is in off-position, and Toggle Force Amplifier is in pressure angle α maximum rating, and platen 30,30 ' is in original state;
(2) motor control assembly sends work order to servomotor 21, and this moment, servomotor 21 began rotation, drives leading screw 23,23 ' by shaft coupling 22,22 ' and begins rotation, and leading screw 23,23 ' changes moment into power output;
(3) lead-screw driving device passes to brace 15,15 ' with cross force by feed screw nut 24,24 ', and brace 15,15 ' outputs to two the reinforcement bars 11 in left and right, 11 ' and force application rod 12,12 ' with power, promotes two Toggle Force Amplifiers and outwards moves;
When (4) reinforcement bar 11,11 ' outwards moves, pressure angle α diminishes gradually, Toggle Force Amplifier has carried out power amplification for the second time, then power output is delivered on force application rod 12,12 ', at this moment, force application rod 12,12 ' drives platen 30,30 ', and fast downward clamping work pieces is completed the clamping course of work;
(5) after the process of finishing the work, motor control assembly sends instruction, servomotor 21 counter-rotatings, and at this moment, leading screw 23,23 ' also begins counter-rotating, drives feed screw nut 24,24 ' and moves inwards;
(6) drive two Toggle Force Amplifiers by feed screw nut 24,24 ', pressure angle α slowly becomes greatly, drives force application rod 12,12 ' and slowly resets with platen 30,30 '.Complete a complete course of work.
In sum, the utility model proposes the mechanical clamping device that a kind of leading screw drives, by increasing by a cover shed stick step-up system, the power on the script leading screw has been carried out the secondary amplification, increased the degree of reliability that machinery steps up.Compared with prior art, of the present utility model somewhat following:
1. the servo electric rotating machine of the utility model employing is power source, compares with hydraulic pressure, Pneumatic Transmission, has having a few of green non-pollution, and is connected with motor control assembly, easily is automated.
2. the utility model uses leading screw, has improved the synchronism of mechanical gripping means together with motor control assembly, and with the several composite applications of Toggle Force Amplifier, improved the clamping force of device.
3. use the step-up systems such as Toggle Force Amplifier mechanism and screw mechanism in the utility model, improved the clamping force of mechanical gripping means.
4. in the utility model, the left and right leading screw adopts left-handed and dextrorotation, has guaranteed left and right rectilinear motion simultaneously, and Toggle Force Amplifier mechanism adopts and is arranged symmetrically with, and the mechanical gripping means symmetry that makes is attractive in appearance.
5. the employing bilateral structure, can clamp two workpiece simultaneously, enhances productivity.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can be in the situation that do not break away from spirit or scope of the present utility model, realization in other embodiments.Therefore, the utility model will can not be restricted to embodiment illustrated herein, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. mechanical gripping means, it is characterized in that: comprise lead-screw driving device, shed stick step-up system, and platen, described shed stick step-up system comprises reinforcement bar and force application rod, both are articulated on described lead-screw driving device by a connecting piece in the horizontal direction actively, described platen is hinged on described force application rod, and this platen actively is arranged in a upright guide rail at vertical direction, and exposes the clamping area of this platen.
2. mechanical gripping means as claimed in claim 1, it is characterized in that: an end of described reinforcement bar is hinged on a stationary plane, forms the fixed point rotary structure.
3. mechanical gripping means as claimed in claim 1, it is characterized in that: described lead-screw driving device comprises servomotor, shaft coupling, leading screw and feed screw nut, described leading screw is connected on servomotor by shaft coupling, this leading screw be connected feed screw nut and intert connection by screw thread, this feed screw nut is hinged on brace simultaneously.
4. mechanical gripping means as claimed in claim 3, it is characterized in that: described feed screw nut is arranged in a horizontal guide rail in the horizontal direction actively.
5. mechanical gripping means as claimed in claim 3, is characterized in that: further comprise motor control assembly, be connected on described servomotor.
6. mechanical gripping means, it is characterized in that: comprise lead-screw driving device, and two the cover symmetrical shed stick step-up system and the platen that is arranged at described lead-screw driving device both sides, the shed stick step-up system of described each side comprises reinforcement bar and force application rod, both are articulated on described lead-screw driving device by a connecting piece in the horizontal direction actively, described platen is hinged on described force application rod, this platen actively is arranged in a upright guide rail at vertical direction, and exposes the clamping area of this platen.
7. mechanical gripping means as claimed in claim 6, it is characterized in that: an end of described reinforcement bar is hinged on a stationary plane, forms the fixed point rotary structure.
8. mechanical gripping means as claimed in claim 6, it is characterized in that: described lead-screw driving device comprises servomotor and two symmetrical shaft coupling, leading screw and the feed screw nuts that are arranged at described servomotor both sides of cover, the leading screw of described each side is connected on servomotor by shaft coupling, this leading screw be connected feed screw nut and intert connection by screw thread, this feed screw nut is hinged on the brace of a corresponding side simultaneously.
9. mechanical gripping means as claimed in claim 8, it is characterized in that: described symmetrical two leading screws are respectively left-handed leading screw and dextrorotation leading screw.
10. mechanical gripping means as claimed in claim 8, it is characterized in that: described feed screw nut is arranged in a horizontal guide rail in the horizontal direction actively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513684 CN202964457U (en) | 2012-09-29 | 2012-09-29 | Mechanical clamping device based on lead screw-shed stick force-amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220513684 CN202964457U (en) | 2012-09-29 | 2012-09-29 | Mechanical clamping device based on lead screw-shed stick force-amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202964457U true CN202964457U (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220513684 Withdrawn - After Issue CN202964457U (en) | 2012-09-29 | 2012-09-29 | Mechanical clamping device based on lead screw-shed stick force-amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202964457U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862133A (en) * | 2012-09-29 | 2013-01-09 | 苏州大学 | Mechanical clamping device based on lead screw-toggle force amplifier |
| CN106737312A (en) * | 2017-04-06 | 2017-05-31 | 桂林电子科技大学 | A kind of clamping device |
-
2012
- 2012-09-29 CN CN 201220513684 patent/CN202964457U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102862133A (en) * | 2012-09-29 | 2013-01-09 | 苏州大学 | Mechanical clamping device based on lead screw-toggle force amplifier |
| CN102862133B (en) * | 2012-09-29 | 2015-07-15 | 苏州大学 | Mechanical clamping device based on lead screw-toggle force amplifier |
| CN106737312A (en) * | 2017-04-06 | 2017-05-31 | 桂林电子科技大学 | A kind of clamping device |
| CN106737312B (en) * | 2017-04-06 | 2019-06-25 | 桂林电子科技大学 | A kind of clamping device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150715 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20130605 Effective date of abandoning: 20150715 |
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| RGAV | Abandon patent right to avoid regrant |