CN101973139A - Dynamic adjustment mechanism of bottom dead center of high-speed knuckle-joint press - Google Patents
Dynamic adjustment mechanism of bottom dead center of high-speed knuckle-joint press Download PDFInfo
- Publication number
- CN101973139A CN101973139A CN2010105152252A CN201010515225A CN101973139A CN 101973139 A CN101973139 A CN 101973139A CN 2010105152252 A CN2010105152252 A CN 2010105152252A CN 201010515225 A CN201010515225 A CN 201010515225A CN 101973139 A CN101973139 A CN 101973139A
- Authority
- CN
- China
- Prior art keywords
- bottom dead
- knuckle
- slide block
- dead centre
- guiding mechanism
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Press Drives And Press Lines (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention relates to a press, in particular to a dynamic adjustment mechanism of the bottom dead center of a high-speed knuckle-joint press, belonging to the technical field of pressure machinery. The adjustment mechanism is symmetrical and fixed on the two ends of the upper cross beam of the press; a crank arranged in the frame drives a slider to perform up-down reciprocating motions in a chute through a connecting rod; the slider, an oscillating bar and a supporting bar constitute a diamond mechanism, the supporting bar is hinged at the point H; the connecting rod, an elbow-bar, a ball-end connecting rod and the slider constitute an elbow-bar mechanism, the slider performs up-down reciprocating motions to drive the supporting bar to oscillate; and the connecting rod is hinged with the oscillating bar to push the elbow-bar mechanism and realize the up-down reciprocating motions of the slider. When the position of the point H changes, the bottom dead center of the slider can also change. In the mechanism of the invention, the fixed pivot H is designed to a point which can be adjusted up and down, thus the dynamic adjustment of the bottom dead center can be realized.
Description
Technical field
The present invention relates to a kind of forcing press, be specifically related to the dynamic guiding mechanism of a kind of high speed knuckle-lever press bottom dead centre, belong to the press technical field.
Background technology
In the metal forming machinery industry, for high-speed blanking press, requiring has very high bottom dead centre precision, and traditional high-speed blanking press bottom dead centre adopts slider-crank mechanism more, and the slide block bottom dead centre can't dynamically be adjusted, and directly affects the quality and the die life of stamping parts.
Summary of the invention
The objective of the invention is for overcoming above-mentioned the deficiencies in the prior art part, provide a kind of high speed knuckle-lever press bottom dead centre dynamic guiding mechanism, this guiding mechanism has symmetry, be separately fixed at the two ends of press crown, the crank that is installed in the frame pumps in slideway by connecting rod drive slide block, slide block, fork, support bar group diamondwise mechanism, support bar is point articulated at H.Connecting rod, toggle link, ball head connecting rod and slide block constitute elbow-bar mechanism, and pumping of slide block drives the swing of support bar, and connecting rod is hinged on fork, promote elbow-bar mechanism, realize pumping of slide block.The bottom dead centre of slide block can change when change is freeed in H point position.The present invention is designed to fixed pivot H can adjust up and down, thereby realizes the dynamic adjustment of bottom dead centre.
The present invention realizes with following technical scheme: the dynamic guiding mechanism of a kind of high speed knuckle-lever press bottom dead centre, it is characterized in that: this guiding mechanism has symmetry, be separately fixed at the two ends of press crown, described servomotor drives eccentric bushing by the band transmission and drives moving up and down of small slide block, and then drive moving up and down of support bar, thereby realize the dynamic adjustment of bottom dead centre.
The eccentric bushing at described entablature two ends connects by jackshaft, realizes the synchronous adjustment of two support bars, uses the holding screw of not exclusively tightening to realize axial location.
The two ends of described jackshaft are multidiameter, realize and being connected of eccentric bushing by key and screw.
Described jackshaft is connected with entablature by two stands.
Described support bar is enclosed within on the small slide block, and cover plate is fixed on the small slide block by screw.
Described eccentric bushing can horizontally slip in small slide block, and the drive small slide block slides up and down in the entablature guide rail.
Advantage of the present invention is: when forcing press runs up, because speed and variations in temperature, build-up of pressure machine bottom dead centre offsets downward, influence punching out product precision, use this mechanism, stressed hour at support bar, can adjust bottom dead centre according to certain rule or actual measurement bottom dead centre Data Dynamic, thereby guarantee the precision of punching out product and prolong die life.
Description of drawings
Below in conjunction with drawings and Examples the present invention is described in further detail:
Fig. 1 is a high speed knuckle-lever press schematic diagram of the present invention:
Fig. 2 is a front view of the present invention:
Fig. 3 is the cutaway view of Fig. 2:
Among the figure: 1, frame, 2, crank, 3, master connecting-rod, 4, slide block, 5, fork, 6, support bar, 7, connecting rod, 8, toggle link, 9, ball head connecting rod, 10, slide block, 11, entablature, 12, support (containing sliding bearing), 13, holding screw, 14, jackshaft, 15, support bar (containing sliding bearing), 16, small slide block, 17, cover plate, 18, eccentric bushing, 19, side's cover, 20, synchronous pulley, 21, servomotor, 22, synchronous band, 23, guide rail.
The specific embodiment
As shown in Figure 1: be installed in crank 2 in the frame 1 and drive slide blocks 4 by connecting rod 3 and in slideway, pump, slide block 4, fork 5, fork 5 ', support bar 6 and support bar 6 ' composition rhombus-mechanism, support bar 6 and support bar 6 ' point articulated at H.Connecting rod 7, toggle link 8, ball head connecting rod 9 and slide block 10 constitute elbow-bar mechanism, and pumping of slide block 4 drives the swing of support bar 6, and connecting rod 7 is hinged on fork 5, promotes elbow-bar mechanism, realizes pumping of slide block 10.The bottom dead centre of slide block can change when change is freeed in H point position.The present invention is designed to fixed pivot H can adjust up and down, thereby realizes above-mentioned functions.
In Fig. 3, two supports 12 are fixed in the entablature by screw and alignment pin, and jackshaft 14 passes the dead eye on the support 12, and with the location that holding screw 13 is realized jackshaft 14, holding screw 13 is not tightened, and makes jackshaft 14 to rotate.The two ends of jackshaft 14 are multidiameter, realize and being connected of eccentric bushing 18 by key and screw, and eccentric bushing 18 can rotation in side's cover 19, just overlap 19 and can swing in small slide block 16 and drive it simultaneously and be installed in the guide rail 23 in the entablature 11 and move up and down.Support bar 15 is enclosed within on the small slide block 16, and cover plate 17 is fixed on the small slide block 16 by screw, realizes the function of retaining oil.Synchronous pulley 20 (concentric with jackshaft 14) is installed on eccentric bushing 18 therein, by synchronously with 22 and the synchronous pulley that is installed in servomotor 21 realize transmission.Servomotor 21 is fixed on the entablature by 4 screws.When the needs bottom dead centre is dynamically adjusted, drive eccentric bushing 18 rotations by servomotor 21 by the band driving-belt, eccentric bushing 18 swings and drives small slide block 16 simultaneously and move up or down, be connected simultaneously on the small slide block 16 two support bars 15 up or down synchronously, thereby realize the dynamic compensation of slide block 10 bottom dead centres.
Claims (6)
1. dynamic guiding mechanism of high speed knuckle-lever press bottom dead centre, it is characterized in that: this guiding mechanism has symmetry, be separately fixed at the two ends of press crown (11), described servomotor (21) drives eccentric bushing (18) by the band transmission and drives moving up and down of small slide block (16), and then drive moving up and down of support bar (15), thereby realize the dynamic adjustment of bottom dead centre.
2. the dynamic guiding mechanism of a kind of high speed knuckle-lever press bottom dead centre according to claim 1, it is characterized in that: the eccentric bushing (18) at described entablature two ends connects by jackshaft (14), realize the synchronous adjustment of two support bars (15), use the holding screw of not exclusively tightening (13) to realize axial location.
3. the dynamic guiding mechanism of a kind of high speed knuckle-lever press bottom dead centre according to claim 1, it is characterized in that: the two ends of described jackshaft (14) are multidiameter, realize and being connected of eccentric bushing (18) by key and screw.
4. the dynamic guiding mechanism of a kind of high speed knuckle-lever press bottom dead centre according to claim 1 is characterized in that: described jackshaft (14) is connected with entablature (11) by two stands (12).
5. the dynamic guiding mechanism of a kind of high speed knuckle-lever press bottom dead centre according to claim 1, it is characterized in that: described support bar (15) is enclosed within on the small slide block (16), and cover plate (17) is fixed on the small slide block (16) by screw.
6. the dynamic guiding mechanism of a kind of high speed knuckle-lever press bottom dead centre according to claim 1, it is characterized in that: described eccentric bushing (18) can horizontally slip in small slide block (16), and drive small slide block (16) slides up and down in entablature guide rail (23).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105152252A CN101973139A (en) | 2010-10-11 | 2010-10-11 | Dynamic adjustment mechanism of bottom dead center of high-speed knuckle-joint press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105152252A CN101973139A (en) | 2010-10-11 | 2010-10-11 | Dynamic adjustment mechanism of bottom dead center of high-speed knuckle-joint press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101973139A true CN101973139A (en) | 2011-02-16 |
Family
ID=43573061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105152252A Pending CN101973139A (en) | 2010-10-11 | 2010-10-11 | Dynamic adjustment mechanism of bottom dead center of high-speed knuckle-joint press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101973139A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320155A (en) * | 2011-09-30 | 2012-01-18 | 江苏扬力数控机床有限公司 | Double servo motor direct-driven numerical control turret punch press |
| CN102975386A (en) * | 2012-11-27 | 2013-03-20 | 南京理工大学 | High-speed precise numerical-control stamping machine mechanismstructure capable of realizing dynamic lower dead point precision compensation |
| CN110561822A (en) * | 2019-08-29 | 2019-12-13 | 山东省科学院激光研究所 | Servo press bottom dead center deviation motor command automatic compensation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531160A (en) * | 1993-06-04 | 1996-07-02 | Bruderer Ag | Single-shaft four-point punch press |
| JP2009131892A (en) * | 2007-11-01 | 2009-06-18 | Nidec-Kyori Corp | Press machine |
| CN101797810A (en) * | 2010-04-02 | 2010-08-11 | 扬州锻压机床集团有限公司 | Bottom dead center adjusting mechanism for high-speed press |
| CN201833618U (en) * | 2010-10-11 | 2011-05-18 | 江苏省徐州锻压机床厂集团有限公司 | Bottom dead center dynamic adjusting mechanisms for high-speed toggle rod pressing machine |
-
2010
- 2010-10-11 CN CN2010105152252A patent/CN101973139A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5531160A (en) * | 1993-06-04 | 1996-07-02 | Bruderer Ag | Single-shaft four-point punch press |
| JP2009131892A (en) * | 2007-11-01 | 2009-06-18 | Nidec-Kyori Corp | Press machine |
| CN101797810A (en) * | 2010-04-02 | 2010-08-11 | 扬州锻压机床集团有限公司 | Bottom dead center adjusting mechanism for high-speed press |
| CN201833618U (en) * | 2010-10-11 | 2011-05-18 | 江苏省徐州锻压机床厂集团有限公司 | Bottom dead center dynamic adjusting mechanisms for high-speed toggle rod pressing machine |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102320155A (en) * | 2011-09-30 | 2012-01-18 | 江苏扬力数控机床有限公司 | Double servo motor direct-driven numerical control turret punch press |
| CN102975386A (en) * | 2012-11-27 | 2013-03-20 | 南京理工大学 | High-speed precise numerical-control stamping machine mechanismstructure capable of realizing dynamic lower dead point precision compensation |
| CN110561822A (en) * | 2019-08-29 | 2019-12-13 | 山东省科学院激光研究所 | Servo press bottom dead center deviation motor command automatic compensation method |
| CN110561822B (en) * | 2019-08-29 | 2021-05-25 | 山东省科学院激光研究所 | Servo press bottom dead center deviation motor command automatic compensation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201979274U (en) | Dual-cylinder distance-adjustable vertical type hydraulic pressing machine | |
| CN102145369A (en) | Driving mechanism of high-speed precision press | |
| CN201833618U (en) | Bottom dead center dynamic adjusting mechanisms for high-speed toggle rod pressing machine | |
| CN101973139A (en) | Dynamic adjustment mechanism of bottom dead center of high-speed knuckle-joint press | |
| CN201147994Y (en) | Knuckle joint press | |
| CN105666921A (en) | Longitudinal double-point closed punch | |
| CN104070234A (en) | Automatic reaming machine | |
| CN105500747A (en) | Novel punching machine | |
| CN201824144U (en) | Lateral supporting device | |
| CN106273607A (en) | A kind of two point multi-link lever press drive mechanism | |
| CN203725915U (en) | Automatic reaming machine | |
| CN101704043A (en) | hydraulic bending machine | |
| CN109435305B (en) | Main transmission mechanism of high-speed punch | |
| CN106427043B (en) | A kind of press machine test platform height adjustment device | |
| CN205371499U (en) | Reciprocating device | |
| JPH11245096A (en) | Slider link press | |
| CN206326900U (en) | A kind of forcing press test platform arrangement for adjusting height | |
| CN211135107U (en) | Bottom dead center compensation structure of toggle type punch press | |
| CN204868299U (en) | Bands for band feeding device | |
| CN210450596U (en) | Forming die for bearing processing | |
| CN202264034U (en) | Compression roller guiding mechanism for H-section horizontal assembly welding | |
| CN103753644B (en) | A kind of die-cutting machine slide block axial location method and a kind of die-cutting machine | |
| CN209566521U (en) | A kind of micropunching machine | |
| CN208005267U (en) | A kind of numerical control saw cutting conveying equipment | |
| CN202921792U (en) | Stroke double guide mechanism for punch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110216 |