CN2717571Y - Quadrangular levelling device for semisolid die forging hydraulic press - Google Patents
Quadrangular levelling device for semisolid die forging hydraulic press Download PDFInfo
- Publication number
- CN2717571Y CN2717571Y CN 200420029492 CN200420029492U CN2717571Y CN 2717571 Y CN2717571 Y CN 2717571Y CN 200420029492 CN200420029492 CN 200420029492 CN 200420029492 U CN200420029492 U CN 200420029492U CN 2717571 Y CN2717571 Y CN 2717571Y
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- cylinder
- cylinder body
- hydraulic press
- die forging
- semisolid die
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- Presses And Accessory Devices Thereof (AREA)
Abstract
The utility model relates to a quadrangular levelling device for semisolid die forging hydraulic press, belonging to the technical field of the hydraulic press. The quadrangular levelling device for semisolid die forging hydraulic press comprises a cylinder body, a piston and a flange, etc, which is characterized in that: a levelling cylinder is fixedly arranged on a hydraulic-press work bench, and the levelling cylinder is connected with a pressure sensor and a control valve; a plunger piston is sheathed in the cylinder body, and the flange is fixedly arranged on the plunger piston; a cylinder-opening lock nut is inserted in the cylinder body, and a cylinder-opening guiding-sheathing is inserted in the cylinder body; a guide pad is fixedly arranged on the external side of the cylinder body, the guide bar is matched with the guide pad to be fixedly arranged on the flange, and the flange is connected with a displacement sensor; the levelling cylinder is connected with a hydraulic-oil control valve which is arranged on the work bench. The utility model can keep the parallel descending state of the slide block and the work bench and can ensure the accuracy of the products; the quadrangular levelling device for semisolid die forging hydraulic press has the advantages of simple structure, accurate controlling and high movement accuracy, etc, and moreover, the utility model can improve the workpiece quality effectively.
Description
Technical field
The utility model belongs to the hydraulic press technical field, particularly relates to a kind of semisolid die forging hydraulic press four-corner leveling device.
Background technology
Present known semisolid die forging hydraulic press does not have the four-corner leveling device, and therefore, no matter hydraulic press is to go up four jiaos of injustice that friction or other interference cause under the motion state before pressing, and causes slider tilt; Still in working order down, because product is different and blank flows and the distribution asymmetry causes the centre of form of product deformation force and the centre distance deviation of hydraulic press, cause slide block to form eccentricity, make the inclination of slide block, all can influence the machining accuracy of workpiece to the direction of eccentricity effect.Usually,, cause workpiece defective, influence product quality so can't overcome the slider tilt in the product pressing process because of hydraulic press does not have the four-corner leveling device.
Summary of the invention
The utility model provides a kind of semisolid die forging hydraulic press four-corner leveling device for solving the technical problem that exists in the known technology.
The utility model purpose is to select the four-corner leveling device for use, corrects slider tilt, improves press motion precision and workpiece quality.
The utility model main frame adopts pull bar pretension composite frame structure.Hydraulic control system adopts proportion control, has accurate position, speed and force value: adopt PLC and secondary meter to constitute digital control system in open type; Adopt exploitation of CAD/CAE/CAM integrated technology and manufacturing; Adopt tele-control system to product quick diagnosis and service, satisfied the large product operating efficiency.
The utility model adopts 4 balance sysmtes of closed loop proportional control, realizes the shaping offset loading force is carried out from motion tracking and compensation.
Employing new digital formula displacement transducer---magnetic grid and NC control system are as hydraulic press high reliability high-precision digital Position Control stroke digital control system, can obtain the measurement result of resolving accuracy, satisfy the high control accuracy requirement of large hydraulic press up to 1um and high repeatable accuracy.
Structure of the present utility model and operation principle:
Four-corner leveling device mounting structure: flange installs by screw and plunger, the leveling cylinder is installed on the workbench by screw, pressure tester is installed on the cylinder body outside, power source is installed in to be done on the platform, cylinder mouth locknut is flush-mounted in the cylinder body by screw thread, and cylinder mouth guide pin bushing is flush-mounted in the cylinder body by shoulder in cylinder mouth locknut and the cylinder body, and guide pad is installed in outside the cylinder body, guide post install with guide plate by screw and with guide pad in cooperate, plunger bushing is loaded in the cylinder body.
Operation principle: the four-corner leveling device is a relatively independent control system, and it is installed on four angles of press bed.After entering the descending stage of compacting, patrix is with before blank contacts, and the slide block lower plane just contacts with the leveling cylinder plug that stretches out, and with slower speed plunger is depressed, and the leveling cylinder begins to play a role, and this process continues up to lasting packing stage.The four-corner leveling system works under the leveling capability in its permission all the time before and after the matched moulds: no matter be to go up to rub under the motion state before pressing or four jiaos of injustice that other interference causes, slider tilt, still in working order down, because product is different and blank flows and the distribution asymmetry causes the centre of form of product deformation force and the centre distance deviation of hydraulic press, cause slide block to form eccentricity, make the inclination of slide block, can both react rapidly to the direction of eccentricity effect.At this moment pressure information and displacement information are transported to respectively in the concentrated PLC system and handle, send instruction respectively according to the result who handles the back gained then, control corresponding servo ratio valve events, make it regulate the opening amount, the oil extraction back pressure of control leveling cylinder according to the desired value that sets.Like this, because each cylinder back pressure difference makes slide block produce a relative countertorque and comes the original inclination of balance, thereby continues the maintenance downstream state parallel with workbench, guaranteed the precision of product.
Technical solution adopted in the utility model is:
Semisolid die forging hydraulic press four-corner leveling device, constitute by cylinder body, piston and guide plate, be characterized in: the leveling cylinder is installed in the hydraulic press workbench, and the leveling cylinder is connected with hydraulic oil detector and control valve, and plunger bushing is loaded in the cylinder body, flange is installed in plunger, cylinder mouth locknut is flush-mounted in the cylinder body, and cylinder mouth guide pin bushing is flush-mounted in the cylinder body, and guide pad is installed in the cylinder body outside, guide post cooperates with guide pad and is installed in guide plate, and flange is connected with displacement detector.
The utility model can also adopt following technical measures:
Described liquid-state die forging hydraulic press four-corner leveling device is characterized in: fairlead is flush-mounted in the cylinder body by shoulder in cylinder mouth locknut and the cylinder body.
Described semisolid die forging hydraulic press four-corner leveling device is characterized in: the hydraulic oil pressure force detector that the leveling cylinder is connected with is installed on the cylinder body outside.
Described semisolid die forging hydraulic press four-corner leveling device, be characterized in: the leveling cylinder is connected with the hydraulic oil control valve, and control valve is installed on workbench.
Described semisolid die forging hydraulic press four-corner leveling device is characterized in: the displacement detector that flange links to each other is digital magnetic grid displacement transducer.
Advantage and the good effect that the utlity model has are:
Semisolid die forging hydraulic press four-corner leveling device enters the descending stage of compacting to continuing packing stage, and the leveling cylinder begins to play a role.The four-corner leveling system works under the leveling capability in its permission all the time before and after the matched moulds: no matter be to go up to rub under the motion state before pressing or four jiaos of injustice that other interference causes, slider tilt, still in working order down, because product is different and blank flows and the distribution asymmetry causes the centre of form of product deformation force and the centre distance deviation of hydraulic press, cause slide block to form eccentricity, make the inclination of slide block, can both react rapidly to the direction of eccentricity effect.By the oil extraction back pressure of control leveling cylinder, make each cylinder produce a relative countertorque and come the original inclination of balance, thereby continue the maintenance downstream state parallel with workbench to slide block, guaranteed the precision of product.The utility model is simple in structure, precise control, working stability, efficient height, has effectively improved the quality of workpiece.
Description of drawings
Fig. 1 is the utility model semisolid die forging hydraulic press four-corner leveling device installation site schematic diagram;
Fig. 2 is Fig. 1 leveling cylinder profile schematic diagram;
Fig. 3 is Fig. 2 leveling cylinder cross-sectional view.
Among the figure: 1. flange, 2. leveling cylinder 3. pressure sensors, 4. guide pad, 5. guide post, 6. valve group, 7. displacement transducer, 8. workbench, 9. cylinder mouth locknut, 10. cylinder mouth guide pin bushing, 11. plungers, 12. cylinder bodies.
The specific embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, Fig. 2 and Fig. 3.
Semisolid die forging hydraulic press four-corner leveling device is installed on the workbench.Levelling device is installed in leveling cylinder 2 by screw four angles of workbench 8, pressure sensor 3 is equipped with in leveling cylinder 2 outsides, be connected with hydraulic oil control valve group 6, plunger 11 is set in the cylinder body 12, flange 1 is installed on the plunger 11, cylinder mouth locknut 9 is flush-mounted in the cylinder body 12 by screw thread, cylinder mouth guide pin bushing 10 is flush-mounted in the cylinder body 12 by shoulder in cylinder mouth locknut 9 and the cylinder body 12, guide pad 4 is installed in leveling cylinder 2 outsides, guide post 5 cooperates by screw with guide pad 4 and is installed in flange 1, flange 1 is equipped with displacement transducer 7, and displacement transducer 7 is digital magnetic grid displacement transducer.Leveling cylinder 2 is connected with hydraulic oil control valve 6, and control valve 6 is installed on workbench.
Claims (5)
1, a kind of semisolid die forging hydraulic press four-corner leveling device, constitute by cylinder body, piston and flange, it is characterized in that: the leveling cylinder is installed in the hydraulic press workbench, and the leveling cylinder is connected with pressure sensor and control valve, and plunger bushing is loaded in the cylinder body, flange is installed in plunger, cylinder mouth locknut is flush-mounted in the cylinder body, and cylinder mouth guide pin bushing is flush-mounted in the cylinder body, and guide pad is installed in the cylinder body outside, guide post cooperates with guide pad and is installed in guide plate, and guide plate is connected with displacement transducer.
2, semisolid die forging hydraulic press four-corner leveling device according to claim 1, it is characterized in that: fairlead is flush-mounted in the cylinder body by shoulder in cylinder mouth locknut and the cylinder body.
3, semisolid die forging hydraulic press four-corner leveling device according to claim 1 is characterized in that: the hydraulic fluid pressure sensor that the leveling cylinder is connected with is installed on the cylinder body outside.
4, semisolid die forging hydraulic press four-corner leveling device according to claim 1, it is characterized in that: the leveling cylinder is connected with the hydraulic oil control valve, and control valve is installed on workbench.
5, semisolid die forging hydraulic press four-corner leveling device according to claim 1 is characterized in that: the displacement inspection that guide plate links to each other is sensed as digital magnetic grid displacement transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029492 CN2717571Y (en) | 2004-08-09 | 2004-08-09 | Quadrangular levelling device for semisolid die forging hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029492 CN2717571Y (en) | 2004-08-09 | 2004-08-09 | Quadrangular levelling device for semisolid die forging hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2717571Y true CN2717571Y (en) | 2005-08-17 |
Family
ID=34892911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420029492 Expired - Fee Related CN2717571Y (en) | 2004-08-09 | 2004-08-09 | Quadrangular levelling device for semisolid die forging hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2717571Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660359A (en) * | 2013-11-19 | 2014-03-26 | 浙江大学 | Hydraulic control system and method for passive type four-corner-leveling hydraulic press |
| CN103879017A (en) * | 2014-03-27 | 2014-06-25 | 江苏莘翔机电有限公司 | Four-corner leveling device of novel rapid hydraulic machine |
| CN104190787A (en) * | 2014-08-13 | 2014-12-10 | 沃得重型机床（中国）有限公司 | Horizontal regulation control system for movable top cap of press machine |
| CN106427039A (en) * | 2016-11-30 | 2017-02-22 | 无锡市创恒机械有限公司 | Uniform pressurizing device for workpiece |
-
2004
- 2004-08-09 CN CN 200420029492 patent/CN2717571Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103660359A (en) * | 2013-11-19 | 2014-03-26 | 浙江大学 | Hydraulic control system and method for passive type four-corner-leveling hydraulic press |
| CN103660359B (en) * | 2013-11-19 | 2015-06-17 | 浙江大学 | Hydraulic control system and method for passive type four-corner-leveling hydraulic press |
| CN103879017A (en) * | 2014-03-27 | 2014-06-25 | 江苏莘翔机电有限公司 | Four-corner leveling device of novel rapid hydraulic machine |
| CN104190787A (en) * | 2014-08-13 | 2014-12-10 | 沃得重型机床（中国）有限公司 | Horizontal regulation control system for movable top cap of press machine |
| CN104190787B (en) * | 2014-08-13 | 2016-03-02 | 沃得重型机床（中国）有限公司 | Forcing press movable apical cap Level tune control system |
| CN106427039A (en) * | 2016-11-30 | 2017-02-22 | 无锡市创恒机械有限公司 | Uniform pressurizing device for workpiece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |