CN201530140U - Diagonal tension driven connecting rod pressure transmission mechanism - Google Patents
Diagonal tension driven connecting rod pressure transmission mechanism Download PDFInfo
- Publication number
- CN201530140U CN201530140U CN2009202796373U CN200920279637U CN201530140U CN 201530140 U CN201530140 U CN 201530140U CN 2009202796373 U CN2009202796373 U CN 2009202796373U CN 200920279637 U CN200920279637 U CN 200920279637U CN 201530140 U CN201530140 U CN 201530140U
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- hinge
- slide block
- axle center
- connecting rod
- rod
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Abstract
A diagonal tension driven connecting rod pressure transmission mechanism belongs to the connecting rod transmission mechanisms, and solves the problems that the force amplifying effect of the present pressing machine transmission mechanism is not obvious and the lateral force of a slide block cannot be eliminated. The transmission mechanism adopts the structure that a connecting hinge, a driving hinge and a slide block hinge are fixed on a middle rack; the connection lines among the axes of the three hinges form an isosceles right triangle; two ends of a connecting rod are respectively connected with a machine frame and the middle rack through an upper cross beam hinge and the connecting hinge; a drive source is connected with the machine frame through a fixed support hinge; a main drive rod is connected with the middle rack through the driving hinge; and the slide block is connected with the middle rack through the slide block hinge. The transmission mechanism has the properties of both a hydraulic transmission mechanism and a crank shaft connecting rod transmission and a knuckle-lever drive mechanism, and can take an effect of force amplification; the transmission mechanism can run under rated load within the most travel range of the slide block, the lateral force on a guide rail is less within the total travel range of the slide block, and the slide block can make variable motion and maintains pressure in the bottom dead center; and the transmission mechanism can be used for pressure transmission of a pressing machine or a clamp.
Description
Technical field
The utility model belongs to jointed gear unit, is specifically related to a kind of link pressure drive mechanism that tiltedly draws driving, is used for the pressure transmission of forcing press or anchor clamps.
Background technology
Crank connecting link driven type forcing press (is seen " crank press "/He Deyu/China Machine Press, 1987), the toggle link driven type forcing press (optimal design of tool forcing press toggle link transmission mechanism according to circumstances, Zhang Yuantong, Zhu Denglin, machinery and electronics, 2008 (1), 10～12 pages), the hydraulic driven forcing press (is seen " design of hydraulic press and application ", the author: Yu Xinlu writes publishing house: China Machine Press) and worm drive formula forcing press (see J58K series, the numerical control electric fly press, Wuhan Xinweiqi Technology Co., Ltd.) be the capital equipment of present plastic working.But all there are some problems in existing these forcing press transmission mechanisms and slide block movement: but 1, the slide block of hydraulic driven forcing press in the total travel scope with rated load work, adjustable in pressure pressurize, generally be used for drawing and forming, but the slide block translational speed is slower, inefficiency; 2, the crank connecting link driven type forcing press of common asynchronous moter driving, slider displacement curve movement in time is a sine curve, its nominal operation load is the scope of 5～10mm more than the bottom dead centre of ram travel generally, be suitable for being limited in scope of forming technology, generally be suitable for the processing of punching and stamping-out.And slide block is bigger to the lateral pressure of guide rail in the work, and guide rail should wear and tear, and makes the slide block movement precision not high, thereby has reduced the drip molding precision; 3, the relative crank connecting link driven type of toggle link driven type forcing press forcing press has superiority on reinforcement effect, but raising and not obvious, and have bigger slide block side force; Though 4, hydraulic driven and worm drive formula forcing press guarantee do not have side force under no unbalance loading situation, but owing to be that direct linearity drives, its straight line pushing mechanism does not have boosting function, and in the impulse stroke of slide block, the motor torque that needs is more much bigger than general forcing press.
Summary of the invention
The utility model provides a kind of link pressure drive mechanism that tiltedly draws driving, and it is not obvious to solve the reinforcement effect that existing forcing press transmission mechanism exists, and the very big problem of slide block side force of crank connecting link transmission, toggle link transmission mechanism.
A kind of link pressure drive mechanism that tiltedly draws driving of the present utility model comprises drive source, connecting rod and hinge, it is characterized in that:
Has a middle frame, be fixed with on the middle frame and connect hinge, driving hinge and slide block hinge, the line in described three hinge axle center constitutes isosceles right triangle, connect the hinge axle center and be positioned at isosceles right triangle two right-angle side intersection points, drive the intersection point that hinge axle center and slide block hinge axle center lay respectively at right-angle side and hypotenuse;
Connecting rod one end is connected with frame by the entablature hinge, and the connecting rod other end is connected with described middle frame by connecting hinge, and entablature hinge axle center and the distance that connects between the hinge axle center equate with the distance that is connected between hinge axle center and the slide block hinge axle center;
Described drive source is connected with frame by the hold-down support hinge, and the main drive rod axis of drive source and the vertical line angle by described entablature hinge axle center are 45 to spend; Described main drive rod is connected with described middle frame by driving hinge, and main drive rod axis is by driving hinge axle center and entablature hinge axle center;
Slide block is connected with described middle frame by the slide block hinge.
Described link pressure drive mechanism is characterized in that:
Described drive source is servomotor or hydraulic cylinder, and when drive source was servomotor, main drive rod was made up of screw rod and nut, and nut and screw rod constitute the ball screw structure, and servomotor links by shaft joint and screw rod, and nut is hinged with the driving hinge;
When drive source was hydraulic cylinder, main drive rod was the piston rod of hydraulic cylinder, and the termination of piston rod is hinged with the driving hinge.
Described link pressure drive mechanism is characterized in that:
Described middle frame is set square, circular slab or support.
The utility model drive characteristics is: main drive rod drives hinge and moves back and forth along main drive rod axis, the connection hinge drivening rod of middle frame is swung, slide block is moved up and down along the vertical line that passes entablature hinge axle center and slide block hinge axle center thereby the synergy of middle frame and connecting rod promotes the slide block hinge.
The utility model utilizes right angle end and rod hinge connection of a middle frame, a beveled end and a slide block of middle frame are hinged, constitute a reinforcement elbow-bar mechanism, drive another beveled end of middle frame back and forth along direction with vertical line angle 45 degree with a drive rod, slide block is pumped as straight line in the vertical line direction, constitute forcing press jointly with this pressure drive mechanism and other servicing unit, slide block is to the guide rail non-lateral pressure, and the power of can reducing friction significantly improves transmission efficiency.Owing to use the toggle link reinforcement principle, use forcing press of the present utility model to compare with traditional crank connecting rod driven type forcing press, toggle link driven type forcing press, under identical nominal operation load, can significantly reduce input power; Rated load impulse stroke scope is bigger; When using servomotor to make drive source, can control slide block and do variable motion, and increase work efficiency.The existing punching machine of forcing press that constitutes with the utility model fast, location and the high characteristic of repetitive positioning accuracy, the long pressure characteristic of rated load impulse stroke of hydraulic press is arranged again.
When the utility model adopts AC servo machinery driving, energy that can only output needs when work is for intermittently used machines such as forcing press, at upper and lower material consumed energy not in the time, so it is, energy-conservation substantially more than 50% than general general driving mode.Can utilize the control characteristic of servomotor, the control slide block is done variable motion, increases work efficiency.
The characteristic of the existing hydraulic gear of the utility model has the characteristic of crank connecting link transmission, toggle link transmission mechanism again, has boosting function; Can be in most of stroke range of slide block movement with rated load work, slide block side force to guide rail in the total travel scope of motion is very little, and slide block can variable motion, can pressurize at bottom dead centre; Be applicable to the shaping of metal, nonmetal and special material.
Description of drawings
Fig. 1 is the schematic diagram of the utility model embodiment one;
Fig. 2 is the schematic diagram of the utility model embodiment two;
Fig. 3 is the utility model transmission principle figure;
Fig. 4 is the utility model operational version schematic diagram;
Fig. 5 is the another kind of operational version schematic diagram of the utility model;
Fig. 6 is other operational version schematic diagram of the utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model pressure drive mechanism is further specified.
Embodiment one: as shown in Figure 1, present embodiment comprises servomotor 11, connecting rod 5,
Be fixed with on the set square 3 and connect hinge 4, driving hinge 8 and slide block hinge 2, the line in three hinge axle center constitutes isosceles right triangle, connect hinge 4 axle center and be positioned at isosceles right triangle two right-angle side intersection points, drive the intersection point that hinge 8 axle center and slide block hinge 2 axle center lay respectively at right-angle side and hypotenuse;
Connecting rod 5 one ends are connected with frame by entablature hinge 6, and connecting rod 5 other ends are connected with set square 3 by connecting hinge 4, and entablature hinge 6 axle center and the distance that connects between hinge 4 axle center equate with the distance that is connected between hinge 4 axle center and slide block hinge 2 axle center;
Servomotor 11 is installed on the electric machine support 13, electric machine support 13 is hinged with hold-down support hinge 12, hold-down support hinge 12 is fixed on the frame, servomotor 11 connects by shaft joint 10 and screw rod 9, nut 7 on the screw rod 9 is hinged with the driving hinge 8 of set square 3, and servomotor 11 can drive in positive and negative two directions rotation, can control output torque, revolution.
Under the driving of nut 7, driving hinge 8 can move along the axis direction of screw rod 9 is forward and backward together with nut 7; Connect hinge 4 this moment under the constraint of connecting rod 5, is that the circular arc line of radius is done left and right swing along the length with connecting rod 5, and 2 on slide block hinge drives slide block 1 and does upper and lower moving along the vertical line direction.
Connecting rod 5 be connected hinge 4 drive do left and right swing in, play the effect of two power bars, can bear from slide block 1 and be delivered to the load of connecting rod 5, and load is passed to hold-down support by set square 3.
Embodiment two: as shown in Figure 2, in the present embodiment, drive source is the hydraulic cylinder 14 that hydraulic system drives, and the termination of the piston rod 15 of hydraulic cylinder 14 is hinged with driving hinge 8, and the bottom of hydraulic cylinder 14 and hold-down support hinge 12 are hinged; The axis of piston rod 15 becomes 45 degree with the angle of vertical line.Under the driving of hydraulic coupling, piston rod 15 can be done forward and back along axis direction and move, thereby the hinged driving hinge 8 in drive and piston rod 15 terminations moves along the axis direction forward and back equally.
Other part of present embodiment is identical with embodiment one, and the motion of set square 3, connecting rod 5 and slide block under the driving of hydraulic cylinder 14, piston rod 15 and driving hinge 8, makes slide block do upper and lower moving along the vertical line direction.
Below the utility model transmission principle is further specified.
As shown in Figure 3, in the right angled triangle that three hinges of the utility model set square 3 constitute, the length of first right-angle side 18 equals the length of second right-angle side 19, and equals the distance between entablature hinge 6 axle center and connection hinge 4 axle center; The angle of first right-angle side 18 and second right-angle side 19 is 90 degree; Main drive rod axis 16 is 45 degree with the angle of vertical line 17; Main drive rod axis passes entablature hinge 6 centers of connecting rod 5 one ends and drives the center of hinge 8; Vertical line 17 passes the center of entablature hinge 6 centers and slide block hinge 2.
Main drive rod can move as forward and back along main drive rod axis 16, driving hinge 8 moves along the direction of main drive rod axis 16, connection hinge 4 drivening rods 5 of set square 3 are swung, make slide block 1 do upper and lower moving along the direction of vertical line 17 thereby the synergy of set square 3 and connecting rod 5 promotes slide block hinge 2.When connecting rod 5 and first right-angle side 18 swing to when overlapping with vertical line 17, drive hinge 8 stop motions, can make this transmission mechanism be in packing state.
Referring to Fig. 4, the utility model can be used for the forcing press of plastic working, the utility model is installed on the custom-designed fuselage that has workbench 23, a guide rail constitute forcing press, will be fixed on the fuselage 21 with the hinged bearing of entablature hinge 6; To be fixed on the fuselage 21 with the hinged bearing of hinge 12; The first guide rail 22A, the second guide rail 22B are fixed on the fuselage.The effect of the first guide rail 22A and the second guide rail 22B is a constraint slide block 1, and when making it eccentric load to occur in pressure processing, guide rail can retrain slide block and keep rectilinear motion, thereby guarantees machining accuracy.Mould is installed in bottom at slide block, at work top bed die is installed, and promptly can be used for the plastic workings such as punching press, pull and stretch, extruding, impression of material.When connecting rod 5 and first right-angle side 18 swing to when overlapping with vertical line 17, drive hinge 8 stop motions, can make this forcing press be in packing state.
Referring to Fig. 5, the utility model can be used as the hold-down mechanism of object, and main drive rod axis 16 is 45 degree with the angle of vertical line 17; Drive hinge 8 when main drive rod axis 16 moves down, because the effect of connecting rod 5 swings promotes pressing plate 24 and moves downward along vertical line 17, thereby compresses object 25; When connecting rod 5 and first right-angle side 18 swing to when overlapping with vertical line 17, drive hinge 8 stop motions, can make this hold-down mechanism be in packing state.
Referring to Fig. 6, adopt two covers mechanism of the present utility model, can be used as the clamp mechanism of object, the angle of last axis 16A and vertical line 17 is that the angle of 45 degree, lower axis 16B and vertical line 17 is 45 degree; When last driving hinge 8A moves down along last axis 16A, under drive hinge 8B and move up along lower axis 16B, because the swing effect of last connecting rod 5A, promoting top board 24A moves downward along vertical line 17, simultaneously because the swing effect of lower link 5B, promote lower platen 24B and move upward, from two direction clamping articles 25 along vertical line 17; When last connecting rod 5A and last set square on one side 18A swing to vertical line 17 and overlap, when simultaneously lower link 5B and following set square one side 18B swing to and overlap with vertical line 17, last driving hinge 8A and driving hinge 8B stop motion simultaneously down can make this clamp mechanism be in packing state.
Claims (3)
1. a link pressure drive mechanism that tiltedly draws driving comprises drive source, connecting rod and hinge, it is characterized in that:
Has a middle frame, be fixed with on the middle frame and connect hinge, driving hinge and slide block hinge, the line in described three hinge axle center constitutes isosceles right triangle, connect the hinge axle center and be positioned at isosceles right triangle two right-angle side intersection points, drive the intersection point that hinge axle center and slide block hinge axle center lay respectively at right-angle side and hypotenuse;
Connecting rod one end is connected with frame by the entablature hinge, and the connecting rod other end is connected with described middle frame by connecting hinge, and entablature hinge axle center and the distance that connects between the hinge axle center equate with the distance that is connected between hinge axle center and the slide block hinge axle center;
Described drive source is connected with frame by the hold-down support hinge, and the main drive rod axis of drive source and the vertical line angle by described entablature hinge axle center are 45 to spend; Described main drive rod is connected with described middle frame by driving hinge, and main drive rod axis is by driving hinge axle center and entablature hinge axle center;
Slide block is connected with described middle frame by the slide block hinge.
2. link pressure drive mechanism as claimed in claim 1 is characterized in that:
Described drive source is servomotor or hydraulic cylinder, and when drive source was servomotor, main drive rod was made up of screw rod and nut, and nut and screw rod constitute the ball screw structure, and servomotor is connected with screw rod by shaft joint, and nut is hinged with the driving hinge;
When drive source was hydraulic cylinder, main drive rod was the piston rod of hydraulic cylinder, and the termination of piston rod is hinged with the driving hinge.
3. link pressure drive mechanism as claimed in claim 1 or 2 is characterized in that:
Described middle frame is set square, circular slab or support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202796373U CN201530140U (en) | 2009-11-06 | 2009-11-06 | Diagonal tension driven connecting rod pressure transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202796373U CN201530140U (en) | 2009-11-06 | 2009-11-06 | Diagonal tension driven connecting rod pressure transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201530140U true CN201530140U (en) | 2010-07-21 |
Family
ID=42525549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202796373U Expired - Lifetime CN201530140U (en) | 2009-11-06 | 2009-11-06 | Diagonal tension driven connecting rod pressure transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201530140U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242798A (en) * | 2011-05-30 | 2011-11-16 | 吕晶 | Multi-rod driving mechanism |
| CN103291681A (en) * | 2013-06-26 | 2013-09-11 | 苏州速腾电子科技有限公司 | Slant power output mechanism |
| CN104385297A (en) * | 2014-09-28 | 2015-03-04 | 无锡康柏斯机械科技有限公司 | Two-connecting rod type movable arm for manufacturing |
| CN106763630A (en) * | 2017-01-20 | 2017-05-31 | 广东机电职业技术学院 | Purely mechanic stepless time adjustment device |
| CN111136497A (en) * | 2020-01-08 | 2020-05-12 | 绵阳鸿悦圣达科技有限公司 | Mechanical part pushing device |
| CN112207168A (en) * | 2020-10-23 | 2021-01-12 | 南京邮电大学 | Hemming beam driving mechanism of hemming machine |
| CN113042705A (en) * | 2019-12-29 | 2021-06-29 | 汉达精密电子(昆山)有限公司 | Die casting supports closing device |
-
2009
- 2009-11-06 CN CN2009202796373U patent/CN201530140U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102242798A (en) * | 2011-05-30 | 2011-11-16 | 吕晶 | Multi-rod driving mechanism |
| CN103291681A (en) * | 2013-06-26 | 2013-09-11 | 苏州速腾电子科技有限公司 | Slant power output mechanism |
| CN104385297A (en) * | 2014-09-28 | 2015-03-04 | 无锡康柏斯机械科技有限公司 | Two-connecting rod type movable arm for manufacturing |
| CN106763630A (en) * | 2017-01-20 | 2017-05-31 | 广东机电职业技术学院 | Purely mechanic stepless time adjustment device |
| CN106763630B (en) * | 2017-01-20 | 2023-03-28 | 广东机电职业技术学院 | Pure mechanical stepless speed regulating device |
| CN113042705A (en) * | 2019-12-29 | 2021-06-29 | 汉达精密电子(昆山)有限公司 | Die casting supports closing device |
| CN113042705B (en) * | 2019-12-29 | 2022-08-12 | 汉达精密电子(昆山)有限公司 | Die casting supports closing device |
| CN111136497A (en) * | 2020-01-08 | 2020-05-12 | 绵阳鸿悦圣达科技有限公司 | Mechanical part pushing device |
| CN112207168A (en) * | 2020-10-23 | 2021-01-12 | 南京邮电大学 | Hemming beam driving mechanism of hemming machine |
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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: 20100721 Effective date of abandoning: 20091106 |