CN102794916A - Multi-connecting rod high-speed precise pressure machine - Google Patents
Multi-connecting rod high-speed precise pressure machine Download PDFInfo
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- CN102794916A CN102794916A CN2012102735802A CN201210273580A CN102794916A CN 102794916 A CN102794916 A CN 102794916A CN 2012102735802 A CN2012102735802 A CN 2012102735802A CN 201210273580 A CN201210273580 A CN 201210273580A CN 102794916 A CN102794916 A CN 102794916A
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- pin joint
- connecting rod
- crank
- sliding block
- slide block
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Abstract
The invention discloses a multi-connecting rod high-speed precise pressure machine and belongs to the technical field of high-speed stamping. A crank is connected with a moving sliding block through a main connecting rod; four equal-length connecting rods are arranged below the moving sliding block and form a diamond shape; the upper end of the diamond shape is connected with the moving sliding block; the left end and the right end of the diamond shape are connected with height adjusting devices through swing rods; and the lower end of the diamond shape is connected with a stamping sliding block through a secondary connecting rod. The moving sliding block and the stamping sliding block move oppositely through a diamond-shaped mechanism, so that a dynamic balance is achieved. Meanwhile, when a motor drives the crank to move for stamping, the eudipleural swing rods rotate along with the crank and swing left and right, the horizontal inertial forces of the connecting rods can be naturally balanced, and the lateral thrust force of a stamping head can be greatly reduced. The two height adjusting devices can be used for adjusting the mould mounting height and guaranteeing the stamping sliding block to be kept in the horizontal attitude.
Description
Technical field
The present invention is used for the high speed stamping manufacture field of metal or nonmetallic materials, is a kind of many link lever high-speeds fine press.
Background technology
In the punching production, boost productivity and needn't increase the investment or the labour be our target, a simple method improves press speed exactly.Yet owing to want the workpiece of drawing to receive the restriction of conditions such as the mechanical property of materials, it is very difficult or even impossible that desire improves forming speed.Use the punching machine of many connecting rods Driving technique, need not change the speed of working stroke of press, can reach the purpose of boosting productivity, prolonging die life and reducing noise.
Nowadays high speed and little punch process are moved towards in the development of connecting rod punch press, thereby the problem that produces is a lot, especially the problem on the dynamic effect.In the punch press rotating process; Each parts can produce inertia force; These inertia force are delivered on the fuselage along interelement contact, and when rotating speed was big, fuselage can rock and oscillation phenomenon because the continuous action of inertia force produces; This phenomenon is the dynamic unbalance of connecting rod punch press, and the dynamic unbalance of connecting rod punch press can be divided into two kinds: the power of giving a violent shake to that crank axle is suffered and the lateral thrust of drift.
Cause the principal element of dynamic unbalance to have two kinds in theory:
1, because of factors such as design, manufacturing, assemblings; Making has unsuitable mass distribution in the mechanical system, dynamically produce inertia force down and act on the frame, be i.e. the inertia force of vertical direction.
2, connecting rod and drift rotation direction are not parallel, and connecting rod produces stamping press except making drift, also can produce a component, i.e. lateral thrust.
Lateral thrust exists when the lathe start, and at the top dead-centre and the bottom dead centre of drift movement travel, lateral thrust changes the most violent.When the drift contact workpiece carries out punching press; Can make the closed action generation error of mould up and down because of lateral thrust; Influence mold position, the as above depth of parallelism of bed die contact-making surface, mould centrally aligned up and down, even make drift deflection cause the skew of sword limit excessive and scratch drift and guiding sidewall.
Existing dynamic balance method all is the discussions to basic dynamic equilibrium, faces high speed problem and many connecting rods punch press, then must consider more design factors, and avoid lateral thrust to act on the drift blade sides, and drift is produced moment.And because of problems such as space deployment cost, actual link design, be not easy to set up another to mechanism to reach dynamic equilibrium.The lateral thrust that acts on the slide block acts on the drift blade sides, and drift is produced moment.When the drift contact workpiece carries out punch process; Can influence mold position, like the depth of parallelism of upper and lower mould because lateral thrust makes the closed action of upper and lower mould produce error; The upper and lower mould centrally aligned, even make drift deflection cause the sword limit to squint excessive and scratch drift and guiding sidewall.But because problems such as space configuration and cost are difficult for setting up another to balanced controls.
As shown in Figure 2, Switzerland Bo Ruida accurate punching machine product B STA uses unique push and pull system; Its connecting rod arrangement has symmetrical characteristic; And on the balanced controls of two sides counterweight, when motor drove crank-motion and carries out the punching press action, balanced controls rotated along with crank and deflect; The inertia force of connecting rod horizontal direction is understood natural equilibrium, and can significantly reduce the lateral thrust of drift.But its vertical direction fails to obtain dynamic balancing.
Summary of the invention
The object of the invention is to provide a kind of horizontal direction and vertical direction all can realize dynamically balanced many link lever high-speeds fine press.
A kind of many link lever high-speeds fine press is characterized by: comprise drive motors, crank, master connecting-rod, motion slide block, slave connecting rod, Punching slider; Comprise that also four pin joints are by being called first pin joint, second pin joint, the 3rd pin joint, the 4th pin joint clockwise successively by four hinged successively link in rhomb form structures that form of connecting rod; First end of above-mentioned crank is installed in drive motors; Second end of crank and first end of master connecting-rod are hinged; Second end of master connecting-rod and motion slide block are hinged at first pin joint of link in rhomb form structure, and the motion slide block is installed in the upright guide rail, and first end and the link in rhomb form structure of slave connecting rod are hinged at the 3rd pin joint; Second end and the Punching slider of slave connecting rod are hinged, and Punching slider is installed in the upright guide rail; Above-mentioned drive motors, motion slide block, Punching slider are positioned on same the vertical curve; The swing-bar mechanism that second pin joint of above-mentioned link in rhomb form structure, the 4th pin joint are identical with structure respectively is hinged, and two swing-bar mechanisms are along above-mentioned vertical curve left-right symmetric; This swing-bar mechanism comprises fork and arrangement for adjusting height; Wherein first end of fork and link in rhomb form structure are articulated in above-mentioned second pin joint or the 4th pin joint; Second end of fork is articulated in arrangement for adjusting height, and arrangement for adjusting height is installed on the horizontal plane vertical with above-mentioned vertical curve; The quality of above-mentioned motion slide block and Punching slider equates.
The present invention utilizes diamond structure to realize the dynamic balancing of vertical direction.To having the problem that forcing press side force and vertical direction inertia force are difficult to balance now; On the basis of Switzerland Bo Ruida accurate punching machine product B STA, improve; Designed two symmetrical forks, along with crank rotates and deflects, the inertia force of connecting rod horizontal direction can natural equilibrium; And can significantly reduce the drift lateral thrust, and adopt unique diamond structure to make the inertia force of vertical direction also obtain balance.
The invention has the advantages that: (1) adopts diamond structure to make that the movement tendency of motion slide block and Punching slider is opposite, has realized the vertical direction dynamic balancing.And the motion slide block adopted and has been fixed in the guide rail, because the characteristic of rhombus does not need guide rail just can make Punching slider realize rectilinear motion, again to the auxiliary guiding accuracy that has just improved Punching slider with guide rail of Punching slider.(2) the rhombus both sides increase fork, because its symmetrical characteristic, when the punching press action was carried out in the driven by motor crank-motion, fork rotated along with crank and deflects, and the inertia force of horizontal direction can natural equilibrium, can significantly reduce the lateral thrust of drift.(3) through two arrangement for adjusting height, can regulate the height of packing compact of forcing press, can guarantee that again Punching slider keeps horizontal attitude.
Description of drawings
Fig. 1 is the structure diagram of many link lever high-speeds of the present invention fine press;
Fig. 2 is the structure diagram of Switzerland Bo Ruida accurate punching machine product B STA;
Label title among Fig. 1: 1, crank, 2, master connecting-rod, 3, the motion slide block, 4, connecting rod, 5, fork, 6, arrangement for adjusting height, 7, slave connecting rod, 8, Punching slider, 9, drive motors.
Specific embodiments
The present invention adopts a kind of diamond structure to make that the movement tendency of motion slide block and Punching slider is opposite, has realized the vertical direction dynamic balancing.The rhombus both sides increase fork, and fork rotates along with crank and deflects, and the inertia force of horizontal direction obtains balance.Through two arrangement for adjusting height, can regulate the height of packing compact of forcing press, can guarantee that again Punching slider keeps horizontal attitude.
In conjunction with Fig. 1, during work, crank 1 rotates under motor-driven, for forcing press provides kinetic energy.Under the effect of rotatablely moving of crank 1, driving Punching slider 8 through a series of transmissions moves back and forth.Crank 1 transmits process with the motion of Punching slider 8: crank 1 links to each other with motion slide block 3 through master connecting-rod 2, and motion slide block 3 is limited on guide rail and realizes rectilinear motion; Motion slide block 3 waits the upper end of the diamond structure of long connecting rod 4 compositions to link to each other with four; Right ends symmetric arrangement one fork 5 and an arrangement for adjusting height 6 of diamond structure; The lower end of diamond structure links to each other with Punching slider 8 through slave connecting rod 7, and Punching slider 8 is limited on guide rail and realizes rectilinear motion.Crank 1 drives motion slide blocks 3 motion that pumps through master connecting-rod 2; Motion slide block 3 makes diamond structure do " opening and closing " motion; The diamond structure lower end drives Punching slider 8 through slave connecting rod 7 and pumps; The movement tendency of motion slide block and Punching slider is opposite, has realized the vertical direction dynamic balancing.Two forks 4 are done slightly swing under the drive of diamond structure; Because its symmetrical characteristic, when the punching press action was carried out in the driven by motor crank-motion, fork rotated along with crank and deflects; The inertia force of horizontal direction is understood natural equilibrium, can significantly reduce the lateral thrust of drift.Through two arrangement for adjusting height, can regulate the height of packing compact of forcing press, can guarantee that again Punching slider keeps horizontal attitude.Workpiece is positioned over Punching slider 8 belows, thereby realizes the punching press to workpiece.9 is drive motors.The center of drive motors 9, motion slide block 3, Punching slider 8 is in the same perpendicular.For realizing the dynamic balancing of vertical direction, need the quality of motion slide block 3 and Punching slider 8 to equate just can obtain more dynamic balancing effect.Prove as follows:
Entire mechanism is regarded as a system; This system is
at the active force of vertical direction;, newton's theorem equals all member inertia force sums of system by can knowing
, that is:
In the formula;
is component quality, and
is the member acceleration.
Except motion slide block 3 and Punching slider 8, miscellaneous part is connecting rod, and its quality relative motion slide block 3 can be ignored with Punching slider 8.Thereby
only needs to consider the inertia force of motion slide block 3 and Punching slider 8.
Can know by the rhombus characteristic; The acceleration magnitude of motion slide block 3 and Punching slider 8 equates; In the opposite direction; Therefore under the situation that motion slide block 3 and Punching slider 8 quality equate; The inertia force that they produce also is that acceleration magnitude equates, and is in the opposite direction, i.e.
.
Claims (1)
1. link lever high-speed fine press more than a kind is characterized by:
Comprise drive motors (9), crank (1), master connecting-rod (2), motion slide block (3), slave connecting rod (7), Punching slider (8); Comprise that also by the hinged successively link in rhomb form structure that forms of four connecting rods (4), four pin joints are by being called first pin joint, second pin joint, the 3rd pin joint, the 4th pin joint clockwise successively;
First end of above-mentioned crank (1) is installed in drive motors (9); First end of second end of crank (1) and master connecting-rod (2) is hinged; Second end of master connecting-rod (2) and motion slide block (3) are hinged at first pin joint of link in rhomb form structure; Motion slide block (3) is installed in the upright guide rail; First end and the link in rhomb form structure of slave connecting rod (7) are hinged at the 3rd pin joint, and second end of slave connecting rod (7) and Punching slider (8) are hinged, and Punching slider (8) is installed in the upright guide rail;
Above-mentioned drive motors (9), motion slide block (3), Punching slider (8) are positioned on same the vertical curve;
The swing-bar mechanism that second pin joint of above-mentioned link in rhomb form structure, the 4th pin joint are identical with structure respectively is hinged, and two swing-bar mechanisms are along above-mentioned vertical curve left-right symmetric; This swing-bar mechanism comprises fork (5) and arrangement for adjusting height (6); Wherein first end of fork (5) and link in rhomb form structure are articulated in above-mentioned second pin joint or the 4th pin joint; Second end of fork (5) is articulated in arrangement for adjusting height (6), and arrangement for adjusting height (6) is installed on the horizontal plane vertical with above-mentioned vertical curve;
The quality of above-mentioned motion slide block (3) and Punching slider (8) equates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102735802A CN102794916A (en) | 2012-08-03 | 2012-08-03 | Multi-connecting rod high-speed precise pressure machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102735802A CN102794916A (en) | 2012-08-03 | 2012-08-03 | Multi-connecting rod high-speed precise pressure machine |
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| Publication Number | Publication Date |
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| CN102794916A true CN102794916A (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012102735802A Pending CN102794916A (en) | 2012-08-03 | 2012-08-03 | Multi-connecting rod high-speed precise pressure machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290344A (en) * | 2014-10-16 | 2015-01-21 | 南京航空航天大学 | Double-servo-motor-driven multi-connection-rod press machine and working method |
| CN107901093A (en) * | 2017-11-02 | 2018-04-13 | 覃其伦 | A kind of slicing device of photovoltaic cell |
| CN108890739A (en) * | 2018-08-22 | 2018-11-27 | 江苏尚唯汽车饰件有限公司 | A kind of cutting means of modified lightweight sound insulating pad |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2299962A (en) * | 1995-04-21 | 1996-10-23 | Rhodes Joseph Ltd | Press for working material |
| CN101543858A (en) * | 2009-05-08 | 2009-09-30 | 南京理工大学 | High-speed fine press |
| CN102275320A (en) * | 2011-08-31 | 2011-12-14 | 南京理工大学 | High-speed pressure machine |
| CN102529139A (en) * | 2012-02-29 | 2012-07-04 | 西安交通大学 | Dynamic balance mechanism for high-speed press |
| CN202781866U (en) * | 2012-12-14 | 2013-03-13 | 南京航空航天大学 | Multi-connecting rods high speed precision press machine |
-
2012
- 2012-08-03 CN CN2012102735802A patent/CN102794916A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2299962A (en) * | 1995-04-21 | 1996-10-23 | Rhodes Joseph Ltd | Press for working material |
| CN101543858A (en) * | 2009-05-08 | 2009-09-30 | 南京理工大学 | High-speed fine press |
| CN102275320A (en) * | 2011-08-31 | 2011-12-14 | 南京理工大学 | High-speed pressure machine |
| CN102529139A (en) * | 2012-02-29 | 2012-07-04 | 西安交通大学 | Dynamic balance mechanism for high-speed press |
| CN202781866U (en) * | 2012-12-14 | 2013-03-13 | 南京航空航天大学 | Multi-connecting rods high speed precision press machine |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104290344A (en) * | 2014-10-16 | 2015-01-21 | 南京航空航天大学 | Double-servo-motor-driven multi-connection-rod press machine and working method |
| CN104290344B (en) * | 2014-10-16 | 2016-01-20 | 南京航空航天大学 | Dual-Servo Motor drives multi-link lever press and method of work |
| CN107901093A (en) * | 2017-11-02 | 2018-04-13 | 覃其伦 | A kind of slicing device of photovoltaic cell |
| CN107901093B (en) * | 2017-11-02 | 2020-07-07 | 李德良 | Slicing device for photovoltaic cell |
| CN108890739A (en) * | 2018-08-22 | 2018-11-27 | 江苏尚唯汽车饰件有限公司 | A kind of cutting means of modified lightweight sound insulating pad |
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Application publication date: 20121128 |