CN102744452B - Numerical control driving device of crank-connecting rod-toggle rod plate shearing machine - Google Patents
Numerical control driving device of crank-connecting rod-toggle rod plate shearing machine Download PDFInfo
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- CN102744452B CN102744452B CN201210263282.5A CN201210263282A CN102744452B CN 102744452 B CN102744452 B CN 102744452B CN 201210263282 A CN201210263282 A CN 201210263282A CN 102744452 B CN102744452 B CN 102744452B
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- connecting rod
- crank
- toggle
- shearing machine
- plate shearing
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Abstract
The invention discloses a numerical control driving device of a crank-connecting rod-toggle rod plate shearing machine. The numerical control driving device of the crank-connecting rod-toggle rod plate shearing machine comprises a numerical control system, a motor, a transmission mechanism connected with the motor, a force increasing mechanism connected with the transmission mechanism, a sliding block connected with the force increasing mechanism and a movable knife rest. The numerical control driving device of the crank-connecting rod-toggle rod plate shearing machine is characterized in that the transmission mechanism comprises a crank connecting rod mechanism, the force increasing mechanism comprises a toggle rod mechanism, the sliding block is arranged in the sliding groove and fixedly arranged on the movable knife rest, one end of the toggle rod is connected with a machine body, and other end of the toggle rod is connected with the sliding block. A crank of the crank connecting rod mechanism is connected with a rotor of the motor, and a connecting rod of the crank connecting rod mechanism is connected with the middle of the toggle rod mechanism. The numerical control driving device of the crank-connecting rod-toggle rod plate shearing machine can improve shearing force and automatic control level of the mechanical plate shearing machine, simultaneously omits an oriented guide rail of the movable knife rest of the mechanical plate shearing machine, simplifies structure, and improves shearing width and accuracy of the plate shearing machine and working efficiency.
Description
Technical field
The present invention relates to a kind of plate shearing machine numerical control drive unit, particularly relating to driving mechanism is crank-connecting rod-toggle link plate shearing machine numerical control drive unit.
Background technology
Plate shearing machine is the shearing equipment carrying out cutting off processing according to dimensional requirement to sheet material, is that equipment cut off by the most popular material of each industrial department, is mainly used in the linear edge cutting out various sizes sheet metal, has extensive use in manufacture field.CNC shearing machine refers to the technology of commanding driving mechanism to realize a plate shearing machine or multiple stage plate shearing machine device action to control by the digital command of numeral, word and symbol composition.
At present, the type of drive of plate shearing machine main motion, mainly contains hydraulic pressure, pneumatic and mechanical three kinds.Wherein, the technical problem underlying that hydraulic plate shears exists is: 1, fluid is revealed and caused environmental pollution; 2, transmission efficiency is low, causes larger energy waste; 3, the Hydraulic Elements such as pump, valve price costly, safeguards more difficult; 4, large hydraulic plate shearing machine needs hydraulic pump to have larger flow, also needs fuel tank to have larger volume simultaneously, causes systems bulky.The technical problem underlying that airoperated clipper exists is: 1, system pressure is low, can only be used for the occasion that shearing force is less; 2, gas has compressibility, cannot adopt synchronization loop as hydraulic plate shears, thus can not be used for the larger occasion of shearing width.The technical problem underlying that the mechanical plate shearing machine of tradition exists is: 1, automatic control level is low; 2, guide rail must be adopted to lead to movable knife rack rectilinear motion, the excessive complex structure manufacture of guide rail width certainly will be caused for large-scale plate shearing machine, add manufacture difficulty, improve manufacturing cost, and cannot shear precision be ensured.
Summary of the invention
The object of this invention is to provide crank-connecting rod-toggle link plate shearing machine numerical control drive unit, to improve shearing force, the automatic control level of mechanical shear trigger, omit mechanical shear trigger movable knife rack guiding rail simultaneously, simplify structure, improve plate shearing machine shearing width and precision, improve its operating efficiency.
For achieving the above object, the technical solution used in the present invention is: crank-connecting rod-toggle link plate shearing machine numerical control drive unit, comprise digital control system, motor, the transmission mechanism of the described motor of connection, the force-increasing mechanism connecting described transmission mechanism, the top shoe connecting described force-increasing mechanism and movable knife rack, described transmission mechanism comprises toggle, described force-increasing mechanism comprises elbow-bar mechanism, described slide block is arranged in chute, and described slide block is fixedly installed on described movable knife rack; Described elbow-bar mechanism one end connects the fuselage other end and connects described slide block; The crank of described toggle connects the rotor of described motor, and the connecting rod of described toggle connects the middle part of described elbow-bar mechanism.
Preferably, described force-increasing mechanism is that elbow-bar mechanism comprises the first toggle link, the second toggle link, and described first toggle link one end connects the fuselage other end and connects described second toggle link, and the described second toggle link other end connects described slide block.
Preferably, described toggle comprises described crank, described connecting rod, and the rotor other end that described crank one end connects described motor connects described connecting rod, and the described connecting rod other end connects described first toggle link, the second toggle link junction.
Preferably, described motor and described transmission mechanism, force-increasing mechanism are symmetrically arranged with two groups, and described digital control system controls the synchronous axial system of described motor.
In such scheme, described digital control system is Dual-spindle linked digital control system, synchronously can send electronic signal to two motors, described motor is servomotor, utilizes servomotor synchronously to drive the two groups of transmission mechanisms in left and right, can ensure that the pressure angle of left and right two toggle links is identical like this, just can ensure synchronism, wherein the rotating speed of motor is not permanent rotating speed, and when entering in impulse stroke, its speed wants corresponding reduction, when entering backhaul, with larger acceleration backhaul.
Operation principle of the present invention is: first, and digital control system sends instruction, and two servomotor synchronized rotations simultaneously, drive crank and connecting rod movement, pressure angle
diminish, carry out first time power amplification.Meanwhile, the first toggle link and the second toggle link are subject to the thrust of connecting rod, pressure angle
also diminish, now carry out second time power amplification, after transmission mechanism carries out twice power amplification, drive upper movable knife rack to down cut workpiece by slide block.When after shearing finished piece(s), digital control system sends instruction to motor, drives toggle to reverse simultaneously, pulls elbow-bar mechanism return, drives upper movable knife rack to reset simultaneously, complete a course of work by slide block.
Because technique scheme is used, the present invention compared with prior art has following advantages:
1, owing to present invention uses digital control system, servomotor and crank-connecting rod-toggle link force-increasing mechanism, transmission mechanism can not only be made accurately synchronous, and power output also amplifies manyfold, can complete shearing work preferably, operating efficiency is high.
2, because driver of the present invention forms axial symmetry distribution, make movable knife rack uniform force, shear precision is high.
3, due to the 2-axis linkage crank synchronous method that the present invention adopts, simplify the structure, drive synchronous simultaneously about ensure that movable knife rack.Not only can omit traditional movable cutter of plate shearing machine frame guiding rail, and can greatly improve shearing width and precision, improve its operating efficiency.
Accompanying drawing explanation
Accompanying drawing 1 is the schematic diagram of the embodiment of the present invention.
In above accompanying drawing: 1, digital control system; 2, motor; 3, crank; 4, connecting rod; 5, the first toggle link; 6, the second toggle link; 7, slide block; 8, chute; 9, movable knife rack.
Detailed description of the invention
Below in conjunction with embodiment shown in the drawings, the invention will be further described:
Embodiment one: shown in accompanying drawing 1.
Crank-connecting rod-toggle link plate shearing machine numerical control drive unit, it comprises digital control system 1, motor 2, connects the transmission mechanism of motor 2, force-increasing mechanism first toggle link 5, second toggle link 6 of connection for transmission mechanism, connect the slide block 7 of force-increasing mechanism, slide block 7 is arranged in chute 8, the movable knife rack 9 of connection sliding block, transmission mechanism comprises toggle, force-increasing mechanism is that elbow-bar mechanism comprises, first toggle link 5, second toggle link 6, first toggle link 5 one end connects the fuselage other end and connects the second toggle link 6, second toggle link 6 other end connection sliding block 7.
Toggle comprises crank 3, connecting rod 4, and the rotor other end that crank one end connects motor 2 connects connecting rod 4, and connecting rod 4 other end connects the first toggle link 5, second toggle link 6 junction.
Motor 2 and transmission mechanism are symmetrically arranged with two groups, and digital control system 1 controls the synchronous axial system of motor 2; Motor 2 is servomotor; Digital control system 1 is Dual-spindle linked digital control system.
Digital control system 1 synchronously sends electronic signal to two servomotors, and servomotor synchronously drives the two groups of transmission mechanisms in left and right, can ensure the pressure angle of left and right two toggle links like this
identical, work as pressure angle
diminish, carry out first time power amplification, meanwhile, the first toggle link 5 and the second toggle link 6 are subject to the thrust of connecting rod 4, pressure angle
also diminish, now carry out second time power amplification, after transmission mechanism carries out twice power amplification, drive movable knife rack 9 to down cut workpiece by slide block 7.
The desirable amplification coefficient of power of this transmission mechanism is:
Actual reinforcement coefficient is:
In formula:
,
-elbow-bar mechanism theoretical pressure angle;
,
the equivalent friction angle of-hinges, computing formula is
(wherein
for hinge axis radius,
for the centre-to-centre spacing in two elbow chain holes on toggle link,
coefficient of friction for toggle link hinges).
Claims (4)
1. crank-connecting rod-toggle link plate shearing machine numerical control drive unit, comprise digital control system, motor, the transmission mechanism of the described motor of connection, the force-increasing mechanism connecting described transmission mechanism, the slide block connecting described force-increasing mechanism and movable knife rack, it is characterized in that: described transmission mechanism comprises toggle, described force-increasing mechanism comprises elbow-bar mechanism, described slide block is arranged in chute, and described slide block is fixedly installed on described movable knife rack; Described elbow-bar mechanism one end connects the fuselage other end and connects described slide block; The crank of described toggle connects the rotor of described motor, and the connecting rod of described toggle connects the middle part of described elbow-bar mechanism;
Described elbow-bar mechanism comprises the first toggle link, the second toggle link, and described first toggle link one end connects the fuselage other end and connects described second toggle link, and the described second toggle link other end connects described slide block;
Described toggle comprises described crank, described connecting rod, and described crank one end connects the rotor of described motor, and the other end connects described connecting rod, and the described connecting rod other end connects described first toggle link, the second toggle link junction.
2. crank-connecting rod according to claim 1-toggle link plate shearing machine numerical control drive unit, is characterized in that: described motor and described transmission mechanism are symmetrically arranged with two groups, and described digital control system controls the synchronous axial system of described motor.
3. crank-connecting rod according to claim 1-toggle link plate shearing machine numerical control drive unit, is characterized in that: described motor is servomotor.
4. crank-connecting rod according to claim 1-toggle link plate shearing machine numerical control drive unit, is characterized in that: described digital control system is Dual-spindle linked digital control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210263282.5A CN102744452B (en) | 2012-07-27 | 2012-07-27 | Numerical control driving device of crank-connecting rod-toggle rod plate shearing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210263282.5A CN102744452B (en) | 2012-07-27 | 2012-07-27 | Numerical control driving device of crank-connecting rod-toggle rod plate shearing machine |
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| Publication Number | Publication Date |
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| CN102744452A CN102744452A (en) | 2012-10-24 |
| CN102744452B true CN102744452B (en) | 2015-06-24 |
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| CN201210263282.5A Active CN102744452B (en) | 2012-07-27 | 2012-07-27 | Numerical control driving device of crank-connecting rod-toggle rod plate shearing machine |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103832868B (en) * | 2012-11-28 | 2016-02-24 | 苏州英达瑞机器人科技有限公司 | A kind of Based Intelligent Control material cutter |
| CN104669433B (en) * | 2013-12-03 | 2017-02-15 | 天津中金博奥重工机械有限责任公司 | Mechanical pushing device |
| CN105252064B (en) * | 2015-11-29 | 2017-07-11 | 山东交通学院 | A kind of toggle rod type flying shearing machine |
| CN107931695A (en) * | 2017-12-28 | 2018-04-20 | 天津市昊鼎精密机械技术有限公司 | A kind of cutter |
| CN108513809A (en) * | 2018-06-01 | 2018-09-11 | 湘潭大学 | A kind of vehicle-mounted shake formula device for picking fruit of crawler belt |
| CN109079211B (en) * | 2018-09-06 | 2023-10-20 | 重庆胜禹新型材料有限公司 | Steel plate shearing machine |
| CN114453645A (en) * | 2022-03-29 | 2022-05-10 | 永康市钧凯机械设备有限公司 | Numerical control cutting machine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB832433A (en) * | 1956-11-27 | 1960-04-13 | Svetsmekano Ab | Improvements in or relating to plate shearing machines |
| GB1450290A (en) * | 1973-06-28 | 1976-09-22 | Schloemann Siemag Ag | Flat blade trimming shears |
| CN101318236A (en) * | 2007-06-07 | 2008-12-10 | 江苏富力数控机床有限公司 | Numerical control guillotine shear |
| CN202951919U (en) * | 2012-07-27 | 2013-05-29 | 苏州大学 | Numerical control drive device of plate shearing machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2561247B2 (en) * | 1986-06-27 | 1996-12-04 | 株式会社 アマダ | Shearing machine |
| DE102007004667B3 (en) * | 2007-01-25 | 2008-05-08 | Barthelt, Hans-Peter, Dipl.-Ing. | Cutter arrangement for cutting e.g. foils, has coupling rod to connect hinge joints, and another coupling rod to connect levers, where hinge axes of hinge joints are axially parallel to each other, and drive device moves movable cutter bar |
-
2012
- 2012-07-27 CN CN201210263282.5A patent/CN102744452B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB832433A (en) * | 1956-11-27 | 1960-04-13 | Svetsmekano Ab | Improvements in or relating to plate shearing machines |
| GB1450290A (en) * | 1973-06-28 | 1976-09-22 | Schloemann Siemag Ag | Flat blade trimming shears |
| CN101318236A (en) * | 2007-06-07 | 2008-12-10 | 江苏富力数控机床有限公司 | Numerical control guillotine shear |
| CN202951919U (en) * | 2012-07-27 | 2013-05-29 | 苏州大学 | Numerical control drive device of plate shearing machine |
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| CN102744452A (en) | 2012-10-24 |
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