CN202447927U - Double-toggle-rod self-locking clamping device - Google Patents
Double-toggle-rod self-locking clamping device Download PDFInfo
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- CN202447927U CN202447927U CN2012200628178U CN201220062817U CN202447927U CN 202447927 U CN202447927 U CN 202447927U CN 2012200628178 U CN2012200628178 U CN 2012200628178U CN 201220062817 U CN201220062817 U CN 201220062817U CN 202447927 U CN202447927 U CN 202447927U
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Abstract
The utility model discloses a double-toggle-rod self-locking clamping device, which comprises a driving mechanism and a hinge rod boosting self-locking clamping mechanism, wherein the driving mechanism consists of a linear motor, a driving piston and a hydraulic cylinder; one end of the driving piston is fixedly connected with an output end of the linear motor; a liquid medium is arranged on the other side of the driving piston; the driving mechanism is used for driving an output mechanism and a resetting mechanism through pipelines respectively; the pipelines are provided with a controllable switch valve respectively; the hinge rod boosting self-locking clamping mechanism consists of at least two toggle rod groups; each toggle rod group consists of an upper toggle rod, a lower toggle rod and a primary toggle rod; the upper toggle rod and the lower toggle rod are hinged with each other; the primary toggle rod is hinged with the upper toggle rod; and each primary toggle rod is hinged and a hinge point is positioned between an output piston and a reset piston. According to the double-toggle-rod self-locking clamping device, a pascal's principle is utilized by the driving mechanism; fluid in a closed space is used as a transmission medium; a large-diameter piston is pushed by a small-diameter piston to move; force amplification and travel reduction are realized; and clamping is quick, the clamping force is large, and the efficiency is high.
Description
Technical field
The utility model relates to a kind of clamping device, is specifically related to a kind of clamping device that adopts elbow-bar mechanism self-locking reinforcement.
Background technology
No matter be the traditional mechanical manufacturing industry, or the modern mechanical manufacturing industry, clamping device is essential.Main following several kinds of clamping mode commonly used: (1) cam-type clamps; (2) hydraulic jack clamps; (3) the toggle link self-locking clamps.The shortcoming of cam-type clamping mode is: labour intensity was big when the workman operated, and it is unreliable, dangerous to clamp.The shortcoming of hydraulic jack clamping device is: Hydraulic Elements are of low quality, cause leakage easily, make pressure transient, and this just need be provided with pressure dwelling loop in hydraulic system, and cost is high, control is complicated.For solving the shortcoming that above-mentioned two kinds of clamping modes exist; Clamping force is big; Safe and reliable toggle link self clamping device is more and more favored, and discloses a kind of self clamping device like Chinese invention patent CN101386136B, comprises temperature control microdisplacement drive unit, area effect stroke amplification device and bilateral single-acting toggle reinforced self-locking clamping device; Said temperature control microdisplacement drive unit comprises a hollow and thin-walled pipe, is provided with semiconductor in it and heats fast/cooling module; Said area effect stroke amplification device comprises active piston input cylinder body, and active piston one end is provided with mat insulation and is fixedly connected with the hollow and thin-walled pipe, and the other end is provided with liquid medium, connects left and right output piston structure respectively through pipeline; The pin joint of bilateral single-acting toggle which is provided with roller between left and right output piston structure, an end is fixedly connected strong output element.The present invention is through temperature control microdisplacement drive unit, drives bilateral single-acting toggle through the area effect stroke amplification device and carries out self-locking and clamp, and improved utilization efficiency of energy, and good stability is pollution-free and self-locking property is good.
But there is following shortcoming in this invention: (1) temperature control microdisplacement drive unit adopts semiconductor to heat/cooling module, and the time of heating, cooling off, heating, cooling were slowly with minute calculating; (2) bilateral single-acting toggle reinforced self-locking clamping device comprises one group of bilateral single-acting toggle, and mechanism is asymmetric, and the power output element receives radial load, and easy and gathering sill rubs, and causes capacity loss; (3) the present invention need adopt the side-play amount of regulating the stop screw pair roller to limit.
For addressing the above problem, design a kind of good stability, self-locking property is good, clamping is rapid and the clamping device of economic environmental protection, have great significance for improving the clamp technology level.
Summary of the invention
The goal of the invention of the utility model provides a kind of duplex bar self clamping device, and through the improvement of structure, good stability, self-locking property is good and it is rapid to clamp, economic environmental protection.
For reaching the foregoing invention purpose; The technical scheme that the utility model adopts is: a kind of duplex bar self clamping device; Comprise driving mechanism and toggle reinforced self-locking clamp mechanism; Said driving mechanism is made up of linear electric motors, active piston, the reciprocating within it hydraulic cylinder of the said active piston of confession, and an end of said active piston is fixedly connected with the output of linear electric motors, and opposite side is provided with liquid medium; Said driving mechanism drives output mechanism and resetting-mechanism respectively through pipeline, is respectively equipped with the gate-controlled switch valve on the said pipeline;
Said output mechanism comprises output hydraulic cylinder and the output piston that is slidedly arranged in the output hydraulic cylinder; Be provided with first back-moving spring between the output of said output piston and the output hydraulic cylinder, constitute hydraulic cavities between the non-output of said output piston and the output hydraulic cylinder;
Said resetting-mechanism comprises reset hydraulic cylinder and the return piston that is slidedly arranged in the hydraulic cylinder that resets; The output of said return piston and reset and be provided with second back-moving spring between the hydraulic cylinder, the non-output of said return piston and reset and constitute hydraulic cavities between the hydraulic cylinder;
Said toggle reinforced self-locking clamp mechanism is made up of at least 2 toggle link groups; Each toggle link group is by the upper elbow lever that is hinged and lower elbow lever, constitute with the hinged one-level toggle link of upper elbow lever; The upper end and the frame of said upper elbow lever are hinged; The lower end of said lower elbow lever and power output element are hinged, and the hinged and pin joint of each said one-level toggle link is between output piston and return piston.
Preferably, said toggle reinforced self-locking clamp mechanism is made up of symmetrically arranged 2 toggle link groups.
Further technical scheme, said one-level toggle link is coaxial is articulated on the roller for each.
The utility model comprises clamping, pressurize and loosens three steps that clamping process is described below:
(1) linear electric motors are in off-position; Gate-controlled switch valve on two pipelines all is in off-state; Two toggle link component other places of toggle reinforced self-locking clamp mechanism are in the most left and right both sides, end in contact under roller and the output piston, and the power output element is in its upper limit position;
(2) open gate-controlled switch valve on the pipeline that connects driving mechanism and output mechanism, make it be in conducting state;
(3) to the linear electric motors energising, order about active piston and do rectilinear motion to the right, squeezed fluid body medium, liquid medium just can be passed in the hydraulic cavities of output mechanism through the pipeline that connects driving mechanism and output mechanism;
(4) liquid medium that progressively increases in the hydraulic cavities; Promoting output piston moves downward along the output hydraulic cylinder; Roller also moves down thereupon, each toggle link group under the effect of one-level toggle link left, right motion, the power output moves downward in the promotion of toggle reinforced self-locking clamp mechanism;
(5) output piston through the one-level toggle link drive toggle reinforced self-locking clamp mechanism left, right motion, and then the angle boosting function through the toggle link group is pressed on the surface of the work capable output element; Output piston continues to move down, and the one-level toggle link in the toggle link group and upper and lower toggle link produce strain, cross 1 ~ 3 ° of center line after; Roller is butted on the return piston; The piston that is reset is spacing, and dual-elbow-bar mechanism reaches reliable self-locking state, the strain potential energy of in one-level toggle link and upper and lower toggle link, storing because of pressurized; Capable output element is put on the surface of the work with continuous action power, realize the clamping of workpiece.
The pressure maintaining period of the utility model is described below:
(1) after workpiece is clamped, change the method that connects of linear electric motors three phase mains, the counter motion of linear electric motors output drives active piston to left movement, but the volume of load bearing fluid medium becomes big gradually in the hydraulic cylinder;
(2) output piston upwards pushes the liquid medium in the hydraulic cavities under the effect of back-moving spring, thereby the liquid medium in the hydraulic cavities is back in the hydraulic cylinder through pipeline;
(3) output piston returns to original state under the effect of back-moving spring; Close the gate-controlled switch valve on the pipeline that connects output mechanism and hydraulic cylinder; This moment, clamping device utilized the auto-lock function of the dual-elbow-bar mechanism output element of exerting all one's strength to remain the clamping to workpiece, energy savings, good stability.
The process of loosening of the utility model is described below:
(1) after workpiece machines, opens the gate-controlled switch valve on the pipeline that connects resetting-mechanism and hydraulic cylinder;
(2) method that connects of change linear electric motors three phase mains, the linear electric motors output drives active piston and moves right, and the pipeline that makes liquid medium connect resetting-mechanism and hydraulic cylinder flows in the hydraulic cavities of resetting-mechanism;
(3) liquid medium that progressively increases in the hydraulic cavities promotes to move on the return piston, drives the toggle reinforced self-locking and clamps to swivel motion, through getting back to original state after the critical condition;
(4) change the method that connects of linear electric motors three phase mains once more, the counter motion of linear electric motors output drives active piston to left movement, but the volume of load bearing fluid medium becomes big gradually in the hydraulic cylinder;
(5) return piston pushes the liquid medium in the hydraulic cavities downwards under the effect of back-moving spring, thereby the liquid medium in the hydraulic cavities is back in the hydraulic cylinder through pipeline, and return piston returns to original state;
(6) close gate-controlled switch valve on the pipeline that connects resetting-mechanism and hydraulic cylinder, accomplish an operation cycle.
Because the technique scheme utilization, the utility model compared with prior art has advantage:
1. the utility model employing linear electric motors are power source, and the output movement of linear electric motors is rectilinear motion, no longer need carry out the conversion of motor output movement by frame for movements such as ball-screw and ball nuts, and is simple in structure, easy to operate; And linear electric motors start rapidly, stroke is big, operate steadily, and noise is low.
2. the driving mechanism utilization of the utility model utilizes pascal's principle, is driving medium with the fluid in the confined space, utilizes the little piston of diameter to promote the big piston motion of diameter, and realizable force amplifies and stroke dwindles, and clamping rapidly, clamping force is big, efficient is high.
3. though the utility model adopts the interior liquid medium of hydraulic cylinder as driving medium, does not have high velocity liquid press pump and fuel tank in the system, the leakage of liquid, safety, environmental protection so can not take place in the whole closed systems of cylinder body.
4. in the utility model; Output piston promotes the dual-elbow-bar mechanism motion, makes the toggle link group produce strain, reaches qualifying bit i.e. motion afterwards and stops; Therefore; The elastic deformation energy that the connecting rod of toggle link group and toggle link self produces just can make mechanism produce self-locking property, keeps the clamped condition of workpiece, and self-locking property is good.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one when being in off working state;
Fig. 2 is that embodiment one is in the structural representation in the clamping process;
Fig. 3 is embodiment one structural representation when in running order;
Fig. 4 is the structural representation after output piston resets on the embodiment one;
Fig. 5 is that embodiment one is in the structural representation in the process of loosening;
Wherein: 1, linear electric motors; 2, active piston; 3, gate-controlled switch valve; 4, gate-controlled switch valve; 5, one-level toggle link; 6, output piston; 7, workpiece; 8, return piston; 9, roller; 10, first back-moving spring; 10 ', second back-moving spring; 11, lower elbow lever; 12, power output element; 13, upper elbow lever.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described:
Embodiment one: referring to Fig. 1 ~ shown in Figure 5; A kind of duplex bar self clamping device; Comprise driving mechanism and toggle reinforced self-locking clamp mechanism; Said driving mechanism is made up of linear electric motors 1, active piston 2, the reciprocating within it hydraulic cylinder of the said active piston 2 of confession, and an end of said active piston 2 is fixedly connected with the output of linear electric motors 1, and opposite side is provided with liquid medium.
Said driving mechanism drives output mechanism and resetting-mechanism respectively through pipeline, is respectively equipped with gate-controlled switch valve 3 and gate-controlled switch valve 4 on the said pipeline.
Said output mechanism comprises output hydraulic cylinder and the output piston 6 that is slidedly arranged in the output hydraulic cylinder; Be provided with first back-moving spring 10 between the output of said output piston 6 and the output hydraulic cylinder, constitute hydraulic cavities between the non-output of said output piston 6 and the output hydraulic cylinder.
Said resetting-mechanism comprises reset hydraulic cylinder and the return piston 8 that is slidedly arranged in the hydraulic cylinder that resets; The output of said return piston 8 and resetting be provided with between the hydraulic cylinder second back-moving spring 10 ', the non-output of said return piston 8 and reset and constitute hydraulic cavities between the hydraulic cylinder.
Said toggle reinforced self-locking clamp mechanism is made up of two toggle link groups; Each toggle link group is made up of the upper elbow lever that is hinged 13 and lower elbow lever 11, the one-level toggle link 5 that is articulated on the upper elbow lever 13; The upper end of said upper elbow lever 13 and clamping device body are hinged, and the lower end of said lower elbow lever 11 and power output element are hinged; One-level toggle link 5 coaxial being articulated on the roller 9 of each said toggle link group, said roller 9 is between output piston 6 and return piston 8.
The utility model comprises clamping, pressurize and loosens three steps that clamping process is described below:
(1) linear electric motors are in off-position; Gate-controlled switch valve on two pipelines all is in off-state; Two toggle link component other places of toggle reinforced self-locking clamp mechanism are in the most left and right both sides, end in contact under roller and the output piston, and the power output element is in its upper limit position;
(2) open gate-controlled switch valve on the pipeline that connects driving mechanism and output mechanism, make it be in conducting state;
(3) to the linear electric motors energising, order about active piston and do rectilinear motion to the right, squeezed fluid body medium, liquid medium just can be passed in the hydraulic cavities of output mechanism through the pipeline that connects driving mechanism and output mechanism;
(4) liquid medium that progressively increases in the hydraulic cavities; Promoting output piston moves downward along the output hydraulic cylinder; Roller also moves down thereupon, each toggle link group under the effect of one-level toggle link left, right motion, the power output moves downward in the promotion of toggle reinforced self-locking clamp mechanism;
(5) output piston through the one-level toggle link drive toggle reinforced self-locking clamp mechanism left, right motion, and then the angle boosting function through the toggle link group is pressed on the surface of the work capable output element; Output piston continues to move down, and the one-level toggle link in the toggle link group and upper and lower toggle link produce strain, cross 1 ~ 3 ° of center line after; Roller is butted on the return piston; The piston that is reset is spacing, and dual-elbow-bar mechanism reaches reliable self-locking state, the strain potential energy of in one-level toggle link and upper and lower toggle link, storing because of pressurized; Capable output element is put on the surface of the work with continuous action power, realize the clamping of workpiece.
The pressure maintaining period of the utility model is described below:
(1) after workpiece is clamped, change the method that connects of linear electric motors three phase mains, the counter motion of linear electric motors output drives active piston to left movement, but the volume of load bearing fluid medium becomes big gradually in the hydraulic cylinder;
(2) output piston upwards pushes the liquid medium in the hydraulic cavities under the effect of back-moving spring, thereby the liquid medium in the hydraulic cavities is back in the hydraulic cylinder through pipeline;
(3) output piston returns to original state under the effect of back-moving spring; Close the gate-controlled switch valve on the pipeline that connects output mechanism and hydraulic cylinder; This moment, clamping device utilized the auto-lock function of the dual-elbow-bar mechanism output element of exerting all one's strength to remain the clamping to workpiece, energy savings, good stability.
The process of loosening of the utility model is described below:
(1) after workpiece machines, opens the gate-controlled switch valve on the pipeline that connects resetting-mechanism and hydraulic cylinder;
(2) method that connects of change linear electric motors three phase mains, the linear electric motors output drives active piston and moves right, and the pipeline that makes liquid medium connect resetting-mechanism and hydraulic cylinder flows in the hydraulic cavities of resetting-mechanism;
(3) liquid medium that progressively increases in the hydraulic cavities promotes to move on the return piston, drives the toggle reinforced self-locking and clamps to swivel motion, through getting back to original state after the critical condition;
(4) change the method that connects of linear electric motors three phase mains once more, the counter motion of linear electric motors output drives active piston to left movement, but the volume of load bearing fluid medium becomes big gradually in the hydraulic cylinder;
(5) return piston pushes the liquid medium in the hydraulic cavities downwards under the effect of back-moving spring, thereby the liquid medium in the hydraulic cavities is back in the hydraulic cylinder through pipeline, and return piston returns to original state;
(6) close gate-controlled switch valve on the pipeline that connects resetting-mechanism and hydraulic cylinder, accomplish an operation cycle.
Claims (2)
1. duplex bar self clamping device; Comprise driving mechanism and toggle reinforced self-locking clamp mechanism; It is characterized in that: said driving mechanism by linear electric motors (1), active piston (2), supply the reciprocating hydraulic cylinder of said active piston (2) to constitute within it; One end of said active piston (2) is fixedly connected with the output of linear electric motors (1), and opposite side is provided with liquid medium; Said driving mechanism drives output mechanism and resetting-mechanism respectively through pipeline, is respectively equipped with gate-controlled switch valve (3,4) on the said pipeline;
Said output mechanism comprises output hydraulic cylinder and the output piston (6) that is slidedly arranged in the output hydraulic cylinder; Be provided with first back-moving spring (10) between the output of said output piston (6) and the output hydraulic cylinder, constitute hydraulic cavities between the non-output of said output piston (6) and the output hydraulic cylinder;
Said resetting-mechanism comprises reset hydraulic cylinder and the return piston (8) that is slidedly arranged in the hydraulic cylinder that resets; The output of said return piston (8) and reset and be provided with second back-moving spring (10 ') between the hydraulic cylinder, the non-output of said return piston (8) and reset and constitute hydraulic cavities between the hydraulic cylinder;
Said toggle reinforced self-locking clamp mechanism is made up of at least 2 toggle link groups; Each toggle link group is by the upper elbow lever that is hinged (13) and lower elbow lever (11), constitute with the hinged one-level toggle link (5) of upper elbow lever (13); The upper end and the frame of said upper elbow lever (13) are hinged; The lower end and the power output element of said lower elbow lever (11) are hinged, and the hinged and pin joint of each said one-level toggle link (5) is between output piston and return piston.
2. duplex bar self clamping device according to claim 1 is characterized in that: each said one-level toggle link (5) is coaxial to be articulated on the roller (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200628178U CN202447927U (en) | 2012-02-24 | 2012-02-24 | Double-toggle-rod self-locking clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200628178U CN202447927U (en) | 2012-02-24 | 2012-02-24 | Double-toggle-rod self-locking clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202447927U true CN202447927U (en) | 2012-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200628178U Expired - Fee Related CN202447927U (en) | 2012-02-24 | 2012-02-24 | Double-toggle-rod self-locking clamping device |
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|---|---|
| CN (1) | CN202447927U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581633A (en) * | 2012-02-24 | 2012-07-18 | 苏州大学 | Double toggle rod self-locking clamping device |
| CN109318123A (en) * | 2018-12-11 | 2019-02-12 | 象山邱工联信息技术有限公司 | A kind of cross axle grinding clamping device |
-
2012
- 2012-02-24 CN CN2012200628178U patent/CN202447927U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102581633A (en) * | 2012-02-24 | 2012-07-18 | 苏州大学 | Double toggle rod self-locking clamping device |
| CN109318123A (en) * | 2018-12-11 | 2019-02-12 | 象山邱工联信息技术有限公司 | A kind of cross axle grinding clamping device |
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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: 20120926 Termination date: 20150224 |
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| EXPY | Termination of patent right or utility model |