CN204603171U - A kind of servounit forcing press Dual Drive elbow-bar mechanism - Google Patents
A kind of servounit forcing press Dual Drive elbow-bar mechanism Download PDFInfo
- Publication number
- CN204603171U CN204603171U CN201520018112.XU CN201520018112U CN204603171U CN 204603171 U CN204603171 U CN 204603171U CN 201520018112 U CN201520018112 U CN 201520018112U CN 204603171 U CN204603171 U CN 204603171U
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- China
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- toggle link
- revolute pair
- connecting rod
- crank
- fuselage
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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
- B30B1/10—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 toggle mechanism
- B30B1/14—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 toggle mechanism operated by cams, eccentrics, or cranks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Press Drives And Press Lines (AREA)
Abstract
The utility model is a kind of servounit forcing press Dual Drive elbow-bar mechanism.Comprise the first crank, second crank, first connecting rod, second connecting rod, first toggle link, second toggle link, 3rd toggle link, one end and the fuselage of the first crank connect and compose revolute pair, the other end of the first crank and one end of first connecting rod connect and compose revolute pair, one end of the other end of first connecting rod and one end of the first toggle link and the second toggle link connects and composes revolute pair, the other end and the fuselage of the second toggle link connect and compose revolute pair, one end and the fuselage of the second crank connect and compose revolute pair, the other end of the second crank and one end of second connecting rod connect and compose revolute pair, the other end of second connecting rod connects and composes revolute pair with the other end of the first toggle link and one end of the 3rd toggle link respectively, the other end and the slide block of the 3rd toggle link connect and compose revolute pair, slide block is placed on fuselage guide rail and forms moving sets.The performance of the utility model adherence pressure machine and applicability, reduce moment of torsion and the instantaneous power of separate unit drive motors.
Description
Technical field
The utility model is that a kind of mechanical press drives elbow-bar mechanism, particularly a kind of servounit forcing press Dual Drive elbow-bar mechanism, belongs to the innovative technology that servounit forcing press drives elbow-bar mechanism.
Background technology
Punching machine is a kind of important metal forming equipment, and be also one of most important mechanized equipment, toggle rod type punching machine is a kind of main Types wherein.Toggle rod type punching machine has that speed of working stroke is slow, force increasing ratio is large, slide block in features such as the bottom dead centre dwell time are long, and fuselage good rigidly, is suitable for the compressing or extrusion molding of precision metal, is widely used in the industries such as machinery, automobile, instrument and meter.
As shown in Figure 1, its operating mechanism is made up of crank 11, connecting rod 12, toggle link 13 and 14, slide block 15 operating mechanism's kinematic sketch of tradition toggle rod type punching machine.It adopts common electric machine to drive flywheel running, and during work, kinetic energy driving crank 1 together with electric machine rotation of flywheel release savings rotates, and is with movable slider 15 to pump by connecting rod 12, toggle link 13 and 14.Because its operating mechanism's motion mode can not control, therefore this traditional knuckle-lever press slide block movement mode relatively immobilize, forcing press function singleness, Technological adaptability is poor, and motor do not stop flywheel driven rotate cause total energy consumption high, be not suitable with the development of modern manufacturing industry.
The beginning of this century, servo-drive started to apply in Forming Equipments along with the development of high-power driven by servomotor.The punching machine of servo-drive adopts servomotor Direct driver, and the rotating speed of its drive motors and moment of torsion can control in real time and regulate, and the therefore automation of forcing press, intelligence degree improve, and operating efficiency improves; And arbitrary slide block characteristic can be obtained, the Technological adaptability of equipment expands; Corresponding Optimal Curve can be adopted according to different technique, improve service behaviour.Servo-pressing machine generally eliminates flywheel, simplifies transmission link, and drive motors only operationally starts, and therefore has significant energy-saving effect.Meanwhile, servo-pressing machine also have that precision is high, environmental protection and the feature of raising die life.Therefore servo-pressing machine obtains and develops rapidly and apply.For the toggle press of servomotor Direct driver, as still adopted the operating mechanism of traditional toggle press, then select the instantaneous power of servo drive motor and moment of torsion by the common induction machine much larger than conventional press, forcing press is caused to involve great expense, cost is high, is unfavorable for applying.Therefore, the operating mechanism of new optimization must be adopted.So, triangle elbow-bar mechanism obtains application in servo toggle rod type punching machine, its operating mechanism's kinematic sketch as shown in Figure 2, is made up of crank 21, bar 22 ~ 24, toggle link 25 and 26, slide block 27, and the delta link that bar 22,23 and 24 forms instead of the connecting rod of traditional elbow-bar mechanism.This mechanism force increasing ratio is large, significantly can reduce the moment of torsion of servo drive motor, and service behaviour is good, and is applied in servo toggle press.But under permanent driving torque effect, engineering pressure stroke internal shaping power is not monotone increasing; And forcing press bottom dead centre is fixed, the change of slide block movement mode can only be changed by driven by servomotor and regulates, and the function of its motion mode diversity and forcing press still receives restriction.
Summary of the invention
The purpose of this utility model is consider the problems referred to above and provide a kind of servounit forcing press Dual Drive elbow-bar mechanism.The utility model can realize forcing press engineering pressure stroke and bottom dead centre is adjustable, slide block movement mode can be arranged arbitrarily, greatly the performance of adherence pressure machine and applicability, and can reduce moment of torsion and the instantaneous power of separate unit drive motors.The utility model structure is simple, and it is convenient to control.
The technical solution of the utility model is: servounit forcing press Dual Drive elbow-bar mechanism of the present utility model, include the first crank, second crank, first connecting rod, second connecting rod, first toggle link, second toggle link, 3rd toggle link, wherein one end of the first crank and fuselage connect and compose revolute pair, the other end of the first crank and one end of first connecting rod connect and compose revolute pair, the other end of first connecting rod connects and composes revolute pair with one end of the first toggle link and one end of the second toggle link respectively, the other end and the fuselage of the second toggle link connect and compose revolute pair, one end and the fuselage of the second crank connect and compose revolute pair, the other end of the second crank and one end of second connecting rod connect and compose revolute pair, the other end of second connecting rod connects and composes revolute pair with the other end of the first toggle link and one end of the 3rd toggle link respectively, the other end and the slide block of the 3rd toggle link connect and compose revolute pair, the guide rail that slide block is placed in fuselage forms moving sets, slide block can move along the axis of fuselage guide rail as reciprocating linear, the other end of the revolute pair that the other end of above-mentioned second connecting rod connects and composes with the other end of the first toggle link and one end of the 3rd toggle link respectively and first connecting rod connects and composes with one end of the first toggle link and one end of the second toggle link the same side that revolute pair is positioned at the axis of fuselage guide rail respectively.
Above-mentioned first crank, the second crank are driven respectively by 2 servomotors.
Above-mentioned elbow-bar mechanism is when the other end of first connecting rod connects and composes revolute pair and the second connecting rod respectively other end with one end of the first toggle link and one end of the second toggle link connects and composes the ultimate range that revolute pair is in away from the axis of fuselage guide rail respectively with the other end of the first toggle link and one end of the 3rd toggle link simultaneously, slide block will be in the position of going up most, namely be in top dead-centre.
Above-mentioned elbow-bar mechanism when the other end of first connecting rod connects and composes revolute pair and the second connecting rod respectively other end with one end of the first toggle link and one end of the second toggle link connect and compose with the other end of the first toggle link and one end of the 3rd toggle link respectively revolute pair be on the axis of fuselage guide rail simultaneously time, the position that slide block will be in, is namely in bottom dead centre.
Above-mentioned elbow-bar mechanism take top dead-centre as original state, when 2 servomotor synchronous uniform velocity runnings of driving first crank, the second crank, when the slide block distance moved downward apart from bottom dead centre is the nominal working stroke of forcing press, operating mechanism is in the position corresponding to forcing press nominal working stroke, the plastic force of forcing press nominal pressure can bear in operating mechanism, and the axis of its second toggle link becomes α with the axis of fuselage guide rail
0angle, the 3rd toggle link axis becomes β with the axis of fuselage guide rail
0angle, α
0and β
0for being greater than the angle that 0 degree is less than or equal to 20 degree.
Servounit forcing press Dual Drive elbow-bar mechanism of the present utility model is relative to traditional elbow-bar mechanism, operating mechanism increases to 2 drivings by 1 driving, under maintenance forcing press nominal pressure machine prerequisite, significantly can reduce moment of torsion and the instantaneous power of separate unit servo drive motor.Forcing press engineering pressure stroke can be realized and bottom dead centre is adjustable, slide block movement mode can be arranged arbitrarily, greatly the performance of adherence pressure machine and applicability, and moment of torsion and the instantaneous power of separate unit drive motors can be reduced.Operating mechanism of the present utility model has given full play to the advantage of forcing press servo-drive, has enriched the function of forcing press.The utility model is that a kind of design is ingenious, and function admirable, convenient and practical servounit forcing press Dual Drive elbow-bar mechanism, control method of the present utility model is simple and convenient.
Accompanying drawing explanation
Fig. 1 is operating mechanism's schematic diagram of traditional toggle rod type punching machine;
Fig. 2 is operating mechanism's schematic diagram of triangle toggle rod type punching machine;
Fig. 3 is operating mechanism's schematic diagram of the utility model embodiment.
Detailed description of the invention
Embodiment:
Operating mechanism of the present utility model schematic diagram as shown in Figure 3, servounit forcing press Dual Drive elbow-bar mechanism of the present utility model, include the first crank 1, second crank 1 ', first connecting rod 2, second connecting rod 3, first toggle link 4, second toggle link 5, 3rd toggle link 6, wherein one end of the first crank 1 and fuselage connect and compose revolute pair O, the other end of the first crank 1 and one end of first connecting rod 2 connect and compose revolute pair A, the other end of first connecting rod 2 connects and composes revolute pair C with one end of the first toggle link 4 and one end of the second toggle link 5 respectively, the other end and the fuselage of the second toggle link 5 connect and compose revolute pair D, one end and the fuselage of the second crank 1 ' connect and compose revolute pair O ', the other end of the second crank 1 ' and one end of second connecting rod 3 connect and compose revolute pair A ', the other end of second connecting rod 3 connects and composes revolute pair B with the other end of the first toggle link 4 and one end of the 3rd toggle link 6 respectively, the other end and the slide block 7 of the 3rd toggle link 6 connect and compose revolute pair E, the guide rail that slide block 7 is placed in fuselage forms moving sets, slide block 7 can move along fuselage guide rail as reciprocating linear.In the present embodiment, above-mentioned slide block 7 up and down reciprocatingly can move linearly along the axis DE of fuselage guide rail.
In the present embodiment, the other end of the revolute pair B that the other end of above-mentioned second connecting rod 3 connects and composes with the other end of the first toggle link 4 and one end of the 3rd toggle link 6 respectively and first connecting rod 2 connects and composes with one end of the first toggle link 4 and one end of the second toggle link 5 the same side that revolute pair C is positioned at the axis DE of fuselage guide rail respectively.
In the present embodiment, above-mentioned first crank 1, second crank 1 ' is driven respectively by 2 servomotors.Adopt 2 servomotors to drive respectively, control 2 servo drive motor rotating speeds and position, effectively can control position and the speed of slide block 7, obtain arbitrary slide block movement curve, the technique of adherence pressure machine is suitable for ability greatly.
Operation principle of the present utility model is: the revolute pair B in the utility model elbow-bar mechanism and revolute pair C is positioned at the same side of axis DE, and when slide block 7 is in top dead-centre, revolute pair B and revolute pair C is in the axial line distance position farthest of body guide rail of disembarking.During work, 2 servomotors drive the first crank 1 and the second crank 1 ' to rotate respectively, drive the first toggle link 4, second toggle link 5 by first connecting rod 2 and second connecting rod 3, the 3rd toggle link 6 moves, revolute pair B and revolute pair C is moved to axis DE, and drives slide block 7 to move downward along fuselage guide rail.In motion process, angle as the axis DE of the axis CD and fuselage guide rail that get the second toggle link 5 is α, the angle of the axis BE of the 3rd toggle link 6 and the axis DE of fuselage guide rail is β, special in operating mechanism is in the position corresponding to forcing press nominal pressure, the second toggle link 5 axis CD becomes α=α with axis DE
0angle, the 3rd toggle link 6 axis BE becomes β=β with axis DE
0angle; When angle α and β is respectively at α
0angle and β
0time in the scope at angle, operating mechanism can provide the forming pressure being not less than nominal pressure needed for forcing press, and when revolute pair B and revolute pair C is positioned on axis DE, slide block 7 is in lower dead point position.When on the axis DE that revolute pair B and revolute pair C arrive fuselage guide rail or the axis DE crossing fuselage guide rail after opposite side certain distance, driven by servomotor crank realizes the backhaul of mechanism.As revolute pair B and revolute pair C has crossed the axis DE of fuselage guide rail, then slide block 7 will again through bottom dead centre, until slide block 7 gets back to top dead-centre.
In addition, when in the operating mechanism shown in Fig. 3, when the servomotor of driving first crank 1 does not start, first crank 1 does not rotate, and revolute pair C be positioned at fuselage guide rail axis DE on when maintaining static, driven by servomotor second crank 1 ' runs well, and now this operating mechanism is equivalent to a traditional elbow-bar mechanism, can realize the function of conventional servo toggle rod type punching machine.
For the operating mechanism shown in Fig. 3, speed and the position of 2 servomotors of driving first crank 1 and the second crank 1 ' is controlled during operation, arrive when making revolute pair B different with revolute pair C on axis DE, now just can change the lower dead point position of slide block 7, thus not change the adjustment that operation that operating mechanism only controls servo drive motor just can realize bottom dead center of slider.
Claims (6)
1. a servounit forcing press Dual Drive elbow-bar mechanism, it is characterized in that including the first crank, second crank, first connecting rod, second connecting rod, first toggle link, second toggle link, 3rd toggle link, wherein one end of the first crank and fuselage connect and compose revolute pair, the other end of the first crank and one end of first connecting rod connect and compose revolute pair, the other end of first connecting rod connects and composes revolute pair with one end of the first toggle link and one end of the second toggle link respectively, the other end and the fuselage of the second toggle link connect and compose revolute pair, one end and the fuselage of the second crank connect and compose revolute pair, the other end of the second crank and one end of second connecting rod connect and compose revolute pair, the other end of second connecting rod connects and composes revolute pair with the other end of the first toggle link and one end of the 3rd toggle link respectively, the other end and the slide block of the 3rd toggle link connect and compose revolute pair, the guide rail that slide block is placed in fuselage forms moving sets, slide block can move along the axis of fuselage guide rail as reciprocating linear, the other end of the revolute pair that the other end of above-mentioned second connecting rod connects and composes with the other end of the first toggle link and one end of the 3rd toggle link respectively and first connecting rod connects and composes with one end of the first toggle link and one end of the second toggle link the same side that revolute pair is positioned at the axis of fuselage guide rail respectively.
2. servounit forcing press Dual Drive elbow-bar mechanism according to claim 1, is characterized in that above-mentioned first crank, the second crank are driven respectively by 2 servomotors.
3. servounit forcing press Dual Drive elbow-bar mechanism according to claim 1, is characterized in that above-mentioned slide block up and down reciprocatingly can move linearly along the axis of fuselage guide rail.
4. the servounit forcing press Dual Drive elbow-bar mechanism according to any one of claims 1 to 3, it is characterized in that above-mentioned elbow-bar mechanism is when the other end of first connecting rod connects and composes revolute pair and the second connecting rod respectively other end with one end of the first toggle link and one end of the second toggle link connects and composes the ultimate range that revolute pair is in away from the axis of fuselage guide rail respectively with the other end of the first toggle link and one end of the 3rd toggle link simultaneously, slide block will be in the position of going up most, namely be in top dead-centre.
5. the servounit forcing press Dual Drive elbow-bar mechanism according to any one of claims 1 to 3, it is characterized in that above-mentioned elbow-bar mechanism when the other end of first connecting rod connects and composes revolute pair and the second connecting rod respectively other end with one end of the first toggle link and one end of the second toggle link connect and compose with the other end of the first toggle link and one end of the 3rd toggle link respectively revolute pair be on the axis of fuselage guide rail simultaneously time, the position that slide block will be in, is namely in bottom dead centre.
6. servounit forcing press Dual Drive elbow-bar mechanism according to claim 4, it is characterized in that above-mentioned elbow-bar mechanism take top dead-centre as original state, when 2 servomotor synchronous uniform velocity runnings of driving first crank, the second crank, when the slide block distance moved downward apart from bottom dead centre is the nominal working stroke of forcing press, operating mechanism is in the position corresponding to forcing press nominal working stroke, the plastic force of forcing press nominal pressure can bear in operating mechanism, and the axis of its second toggle link becomes α with the axis of fuselage guide rail
0angle, the 3rd toggle link axis becomes β with the axis of fuselage guide rail
0angle, α
0and β
0for being greater than the angle that 0 degree is less than or equal to 20 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018112.XU CN204603171U (en) | 2015-01-12 | 2015-01-12 | A kind of servounit forcing press Dual Drive elbow-bar mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520018112.XU CN204603171U (en) | 2015-01-12 | 2015-01-12 | A kind of servounit forcing press Dual Drive elbow-bar mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN204603171U true CN204603171U (en) | 2015-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520018112.XU Withdrawn - After Issue CN204603171U (en) | 2015-01-12 | 2015-01-12 | A kind of servounit forcing press Dual Drive elbow-bar mechanism |
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| CN (1) | CN204603171U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646584A (en) * | 2015-01-12 | 2015-05-27 | 广东工业大学 | Double-drive toggle rod mechanism for servo mechanical press and control method thereof |
-
2015
- 2015-01-12 CN CN201520018112.XU patent/CN204603171U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104646584A (en) * | 2015-01-12 | 2015-05-27 | 广东工业大学 | Double-drive toggle rod mechanism for servo mechanical press and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150902 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |