CN203449626U - Micro drive device and electromagnetic control driving minisize punching machine with micro drive device - Google Patents
Micro drive device and electromagnetic control driving minisize punching machine with micro drive device Download PDFInfo
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- CN203449626U CN203449626U CN201320376178.7U CN201320376178U CN203449626U CN 203449626 U CN203449626 U CN 203449626U CN 201320376178 U CN201320376178 U CN 201320376178U CN 203449626 U CN203449626 U CN 203449626U
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- China
- Prior art keywords
- drive device
- electromagnetic control
- parts
- amplification device
- stroke amplification
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/42—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by magnetic means, e.g. electromagnetic
Abstract
The utility model discloses a micro drive device and an electromagnetic control driving minisize punching machine with the micro drive device. The punching machine further comprises a stroke amplification device. The micro drive device comprises an elastic telescoping part and a power source for deformation of the elastic telescoping part. The elastic telescoping part is an electrostriction or magnetostriction part. The stroke amplification device utilizes an internal reflux differential action area effect stroke amplification device. The electrostriction or magnetostriction part is used as a driver having rapid response speed for strain. Amount of stretching can be adjusted by electric field intensity or magnetic field intensity. The stroke amplification device can amplify a microscale displacement generated by the telescoping part to be a substantial displacement, in order to achieve a punching function. A liquid medium can provide a buffer to achieve flexible impact, improve operation safety and extend service lifetime of the device. The punching machine is compact and concise in integral structure, achieves a minisize. Energy conversion process amount is small, energy utilization rate is high. The punching machine provides impact with little energy and high frequency and is suitable for analysis and test occasions.
Description
Technical field
The utility model belongs to punching press technical field of measurement and test, is specifically related to the minitype stamping machines that a kind of micro-drive unit and Electromagnetic Control drive.
Background technology
Stamping machine is widely used in punching press and the moulding of electronics, communication, household electrical appliance, furniture, the vehicles, five metals parts etc.In producing at present, conventional stamping machine mainly contains mechanical type, pneumatic type, fluid pressure type three classes.
Mechanical type stamping machine is connected with toggle by motor, and linkage drives drift to move back and forth.During the work of pneumatic type stamping machine, need compressed air source or configuration air compressor machine to produce compressed air, compressed air delivery, to cylinder, is promoted to cylinder moving, realize press work.Fluid pressure type stamping machine need to configure hydraulic pump, utilizes the motion of hydraulic cylinder to complete punching course.They have the features such as volume is large, and stamping press is large, rigid shock.
Conventional mechanical type, pneumatic type, fluid pressure type three class stamping machines in producing at present, there are respectively some defects in them.The main problem of mechanical type stamping machine is: system comprises the parts such as motor, flywheel, clutch, and overall structure is more complicated, is difficult to realize microminaturization; Owing to using toggle, the drift periodic horizontal side force of bearing in process that pumps is larger, so frictional dissipation is large and can produce periodic vibration, reduces the service life of equipment; Impulse stroke and frequency are generally non-adjustable, and what produce is rigid shock, and security is low.
The major defect of pneumatic stamping machine is: need to configure compressed air source or air compressor machine, so cost is higher and device volume is larger; Pneumatic mode need to be passed through a plurality of power conversion links, and energy loss is large, and energy utilization rate is lower; The sealing of gas is not easy to guarantee.
Also there is the problem that volume is larger in the stamping machine of fluid pressure type, the hidden danger that also has fluid to reveal in addition, and hydraulic pump also can produce noise pollution.
But there are now a lot of manufactures or analytical test occasion, such as the production process of electronics and information products, and the test process to material surface performance, require equipment that little energy high-frequency percussion can be provided.In this case, traditional stamping machine just can not meet the demands.
In addition, area effect stroke amplification device aspect, there is obvious shortcoming in traditional amplifying device: when multiplication factor one timing, if restriction driven plunger size, in order to lay back-moving spring, must sacrifice the size of output piston depression bar, so just may cause piston depression bar because undersized, rigidity is poor and produce strut buckling and destroy; If in order to guarantee the rigidity of output piston depression bar, just must amplify the size of output piston, then can cause the size of driven plunger to increase, so that whole device volume is excessive.
Therefore, in view of above problem is necessary to design a kind of microminaturization feature that has, and can provide the stamping machine of little energy high-frequency soft impulse to meet user demand.
Utility model content
In view of this, the minitype stamping machines that the utility model provides a kind of Electromagnetic Control to drive, micro-drive unit adopts electricity to cause or magnetostriction parts, and utilize a kind of interior backflow differential area effect stroke amplification device to realize micrometric displacement and amplify, make stamping machine there is microminaturization, provide the feature of little energy high-frequency, soft impulse, to meet the object of user demand.
A kind of micro-drive unit proposing according to the purpose of this utility model, comprise elastic telescopic parts and the power source that drives described elastic telescopic part distortion, described elastic telescopic parts are electrostriction parts or magnetostriction parts, described power source is the corresponding electric field that is arranged at described electrostriction parts periphery, or being arranged at the magnetic field of described magnetostriction parts periphery, described elastic telescopic parts one end is fixedly installed.
The minitype stamping machines that Electromagnetic Control drives, comprises described micro-drive unit and stroke amplification device, and described stroke amplification device comprises driven plunger, output piston and piston rod, and described upper cover of piston rod is provided with back-moving spring; One end of described driven plunger is fixedly connected with described micro-drive unit.
Preferably, on described output piston, be provided with at least one or more return port.
Preferably, described driven plunger and described output piston share a hydraulic cylinder, and described driven plunger is positioned at the top of described output piston.
Preferably, the external diameter of described back-moving spring is near the inwall setting of described hydraulic cylinder.
Compared with prior art, the advantage of the minitype stamping machines that the disclosed a kind of Electromagnetic Control of the utility model drives is: by adopting electricity to cause or magnetostriction parts drive, response speed to strain is very fast, and electricity causes or the stroke of magnetostriction parts can utilize added electric field or the intensity in magnetic field regulates.The microdisplacement that stroke amplification device can produce extensible member amplifies, and becomes remarkable displacement, realizes punching press function, and liquid medium provides buffering to punching course, has promoted the service life of processing safety and equipment.And the compact overall structure of stamping machine is succinct, has realized microminaturization, and conversion links is few, the utilization rate of the energy is higher, and the impact of little energy upper frequency can be provided.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the minitype stamping machines embodiment 1 of the disclosed a kind of Electromagnetic Control driving of the utility model.
Fig. 2 is the structural representation of the minitype stamping machines embodiment 2 of the disclosed a kind of Electromagnetic Control driving of the utility model.
The title of the numeral in figure or the corresponding component of alphabetical representative:
1, elastic telescopic parts 2, driven plunger 3, output piston 4, piston depression bar 5, back-moving spring 6, return port
The specific embodiment
Conventional mechanical type, pneumatic type, fluid pressure type three class stamping machines in producing at present, such stamping machine overall structure is more complicated, and volume is larger, is difficult to miniaturization; Mostly be rigid shock, security is low; Cost is higher; Pneumatic mode need to be passed through a plurality of power conversion links, and energy utilization rate is lower, and the sealing of gas is not easy to guarantee; The hidden danger that fluid pressure type stamping machine exists fluid to reveal, hydraulic pump also can produce noise pollution; And be not suitable for little energy high-frequency is impacted to manufacture or the analytical test occasion that has requirement.
The utility model is for deficiency of the prior art, the minitype stamping machines that a kind of Electromagnetic Control drives has been proposed, electricity consumption is caused or magnetostriction materials as driver part, a kind of interior backflow area difference hydrodynamic pressure stroke amplification device of connecting, the specification requirement that realization provides little energy repeatedly to impact, this stamping machine has microminaturization, soft impulse, response is quick, pollution-free, energy utilization rate is high feature simultaneously.
To the technical solution of the utility model, be clearly and completely described by the specific embodiment below.Obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The minitype stamping machines that a kind of Electromagnetic Control proposing according to the purpose of this utility model drives, comprise elastic telescopic parts 1, drive the power source of elastic telescopic parts 1 distortion, elastic telescopic parts 1 are electrostriction parts or magnetostriction parts, power source is the corresponding electric field on electrostriction parts that is arranged at, or being arranged at the magnetic field on magnetostriction parts, elastic telescopic parts one end is fixed.Elastic telescopic parts adopt electricity to cause or magnetostriction materials are made, by regulating the intensity in electric field or magnetic field with elongation and the amount of contraction of adjustable elastic extensible member.
Electrostriction refers to due to the caused dielectric strain of electric polarization phenomenon.In addition, for some piezoelectrics, the strain that it also has another kind of inverse piezoelectric effect to produce in external electric field.Inverse piezoelectric effect only just has in without symmetrical central crystal, and electrostriction effect all exists in all dielectric crystal.Generally, the little several orders of magnitude of the inverse piezoelectric effect of the caused strain ratio piezoelectrics of electrostriction.The formula of strain is as follows:
ε=dE+ME
2
Wherein, ε is dependent variable; D is piezoelectric modulus, m/V; DE is inverse piezoelectric effect; M is electrostriction coefficient, m
2/ V
2; ME
2for electrostriction effect.
Magnetostriction refers under the effect of ferromagnetic material outside magnetic field, and its size is extended (or shortening), removes after external magnetic field, and it recovers again the phenomenon of the original length.Magnetostrictive effect can be described with magnetostriction coefficient λ:
λ=(l
H-l
o)/l
o
L
ofor the original length, l
hlength for elongation under the effect of object outside magnetic field or after shortening.The λ of general ferromagnetic material is very little, approximately 1,000,000/, conventionally with ppm, represent.Tradition magnetostriction materials, its λ value is between 20～-80ppm.Electrostriction material, such as piezoceramic material (PZT), its λ value is approximately 200～400ppm.The giant magnetostrictive material of rare earth intermetallic compound, its λ value can reach 1500～2000ppm, and effect is considerable.Elastic telescopic component materials can be selected piezoceramic material or giant magnetostrictive material.
Giant magnetostrictive material has following characteristics: the thrust producing during strain is large; Energy conversion efficiency is high, can reach 70%; Response time is short, is approximately microsecond; And the flexible size of giant magnetostrictive material can, with the externally-applied magnetic field variation that is directly proportional, therefore can regulate and control it; Reliability is high, can not produce tired and overheating failure problem.
Embodiment 1
As shown in Figure 1, the minitype stamping machines that a kind of Electromagnetic Control drives, comprises micro-drive unit and stroke amplification device, and stroke amplification device comprises driven plunger 2, output piston 3 and piston depression bar 4, is arranged with back-moving spring 5 on piston depression bar 4; One end of driven plunger 2 is fixedly connected with micro-drive unit.
On output piston, be provided with at least one or more return port 6.Driven plunger 2 shares a hydraulic cylinder with output piston 3, and driven plunger 2 is positioned at the top of output piston 3.
Electric field or magnetic fields, when elastic telescopic parts, extend extensible member, and stroke can utilize added electric field or the intensity adjustment in magnetic field.The microdisplacement that utilizes stroke amplification device extensible member can be produced amplifies, and becomes remarkable displacement, realizes punching press function.When electric field or magnetic field intensity die down or cancel, elastic telescopic elements constrict, drives driven plunger reset, output piston, piston rod to reset gradually under the effect of back-moving spring, completes punching course one time.
By return port is set on output piston, liquid can intercommunication in rod chamber and rodless cavity, driven plunger promotes in the process of output piston the liquid in output hydraulic pressure cylinder rod chamber can be back to that in rodless cavity, to realize area differential, and the computing formula of stroke amplification coefficient is as follows:
S in formula
ifor the cross-sectional area of driven plunger, S
oeffective active area S for output piston
o=S
r, S
rfor the cross-sectional area of piston depression bar, the diameter that D is driven plunger, d is the diameter of output piston depression bar, and this is and conventional area stroke amplification device difference, so under equal conditions, the amplification coefficient of the differential stroke amplification device of interior backflow area increases greatly.So when multiplication factor is determined, the output piston of the differential amplifying device of interior backflow area is not to be subject to dimension constraint, the rigidity of piston depression bar can be guaranteed, and has so just solved the problem that conventional area effect hydraulic stroke amplifying device exists.
When causing to electricity or magnetostriction materials add behind electric field or magnetic field, telescopic material can extend automatically, thereby promote connected driven plunger, produces downward displacement l
i.Stroke amplification device utilizes area effect, and this micrometric displacement is passed to output piston by liquid medium, and is enlarged into the displacement l of output piston
o, output piston is connected with piston depression bar, drives piston depression bar to move downward displacement l
o, complete press work.Its stroke multiplication factor can be calculated by formula.
S in formula
ifor the cross-sectional area of driven plunger, S
oeffective active area S for output piston
o=S
r, S
rcross-sectional area for piston depression bar.
For example, the coefficient of dilatation λ of known a kind of telescopic material is 1000ppm, the original length l of telescopic material
ofor 200mm, the ratio of driven plunger and the cross-sectional area of output piston depression bar
after adding electric field or magnetic field, the length variations Δ l of telescopic material
i=λ l
o=1000ppm * 10
-6* 200mm=0.2mm, by the final output displacement of stroke amplification device
by this example, can find out
designed stamping machine, the microdisplacement 0.2mm that is difficult for discovering that telescopic material deformation can be produced, carries out being output as remarkable displacement 20mm after stroke amplification.
Cancel behind electric field or magnetic field, telescopic material recovers original length by elongation state, drives the driven plunger reset that moves up, and output piston also moves upward under the effect of back-moving spring simultaneously, final whole device recovers original equilbrium position, completes a complete punching press and reseting procedure.
The external diameter of back-moving spring 5 is near the inwall setting of hydraulic cylinder, relatively large at the process medium velocity of punching press, by back-moving spring is arranged near hydraulic cylinder inwall, to guarantee the stability of piston depression bar.
The beneficial effect of the present embodiment is as follows:
1, this stamping machine is enlarged into micro-displacement the successful of remarkable displacement, can provide little energy high-frequency impact, adapts to the manufacture beyond power of a lot of traditional stamping machines or analytical test occasion.
2, provide regulatable soft impulse; Due to electricity consumption is caused with magnetostriction materials as driving, electricity causes with magnetostriction materials quick for the response of strain, and the stroke of material can utilize applied field and magnetic field intensity to regulate; Meanwhile, because liquid medium can provide buffering, avoid the defect of mechanical punch rigid shock, promoted processing safety, extended service life of equipment.
3, compact overall structure is succinct, has realized microminaturization; Compare with conventional ADS driving device, electricity causes with magnetostriction materials and drives owing to not needing to use the parts such as motor, pump, cylinder, so small volume, and structure and manufacture process are simple; Meanwhile, increase the stroke amplification device of return port after improving, adopt the cylinder body of integral type, driven plunger and output piston are arranged in same hydraulic cylinder, structure and manufacture process are simple, compact conformation.
4, electric field energy or magnetic field energy directly can be converted to mechanical energy, the link of power conversion is few, and the utilization rate of the energy is high.
As described in Figure 2, all the other are identical with embodiment 1, and difference is, the hydraulic cylinder at driven plunger 2 places is connected in series mutually with stroke amplification device.
The utility model discloses the minitype stamping machines that a kind of Electromagnetic Control drives, by adopt electricity to cause or magnetostriction parts as driving, response speed to strain is very fast, electricity causes or the stroke of magnetostriction parts can utilize added electric field or the intensity in magnetic field regulates, and liquid medium can provide buffering, promoted the service life of security and equipment.And the overall structure of stamping machine is compacter succinct, realized microminaturization, and conversion links is few, and the utilization rate of the energy is higher.In addition, by adopting stroke amplification device to realize the remarkable amplification of displacement, can provide the impact of little energy upper frequency, be adapted to analytical test occasion.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (5)
1. a micro-drive unit, it is characterized in that, comprise elastic telescopic parts and the power source that drives described elastic telescopic part distortion, described elastic telescopic parts are electrostriction parts or magnetostriction parts, described power source is the corresponding electric field that is arranged at described electrostriction parts periphery, or being arranged at the magnetic field of described magnetostriction parts periphery, described elastic telescopic parts one end is fixedly installed.
2. the minitype stamping machines that an Electromagnetic Control drives, it is characterized in that, comprise micro-drive unit claimed in claim 1 and stroke amplification device, described stroke amplification device comprises driven plunger, output piston and piston rod, and described upper cover of piston rod is provided with back-moving spring; One end of described driven plunger is fixedly connected with described micro-drive unit.
3. the minitype stamping machines that a kind of Electromagnetic Control as claimed in claim 2 drives, is characterized in that, is provided with at least one or more return port on described output piston.
4. the minitype stamping machines that a kind of Electromagnetic Control drives as claimed in claim 2 or claim 3, is characterized in that, described driven plunger and described output piston share a hydraulic cylinder, and described driven plunger is positioned at the top of described output piston.
5. the minitype stamping machines that a kind of Electromagnetic Control as claimed in claim 4 drives, is characterized in that, the external diameter of described back-moving spring is near the inwall setting of described hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376178.7U CN203449626U (en) | 2013-06-27 | 2013-06-27 | Micro drive device and electromagnetic control driving minisize punching machine with micro drive device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320376178.7U CN203449626U (en) | 2013-06-27 | 2013-06-27 | Micro drive device and electromagnetic control driving minisize punching machine with micro drive device |
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|---|---|
| CN203449626U true CN203449626U (en) | 2014-02-26 |
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| CN201320376178.7U Expired - Fee Related CN203449626U (en) | 2013-06-27 | 2013-06-27 | Micro drive device and electromagnetic control driving minisize punching machine with micro drive device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302886A (en) * | 2013-06-27 | 2013-09-18 | 苏州大学 | Micro-driving device and electromagnetic control driven micro-punch with same |
| WO2019038031A1 (en) * | 2017-08-22 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Pressure pin of a press and press having pressure pin |
-
2013
- 2013-06-27 CN CN201320376178.7U patent/CN203449626U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103302886A (en) * | 2013-06-27 | 2013-09-18 | 苏州大学 | Micro-driving device and electromagnetic control driven micro-punch with same |
| CN103302886B (en) * | 2013-06-27 | 2016-03-23 | 苏州大学 | The minitype stamping machines that micro-move device device and the Electromagnetic Control comprising this device drive |
| WO2019038031A1 (en) * | 2017-08-22 | 2019-02-28 | Bayerische Motoren Werke Aktiengesellschaft | Pressure pin of a press and press having pressure pin |
| US11479005B2 (en) | 2017-08-22 | 2022-10-25 | Bayerische Motoren Werke Aktiengesellschaft | Pressure pin of a press and press having pressure pin |
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| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140226 Termination date: 20160627 |