CN205464312U - Powder metallurgy die elastic deformation compensation mechanism - Google Patents
Powder metallurgy die elastic deformation compensation mechanism Download PDFInfo
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- CN205464312U CN205464312U CN201520853512.2U CN201520853512U CN205464312U CN 205464312 U CN205464312 U CN 205464312U CN 201520853512 U CN201520853512 U CN 201520853512U CN 205464312 U CN205464312 U CN 205464312U
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- elastic deformation
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Abstract
The utility model relates to a powder metallurgy die elastic deformation compensation mechanism. Including setting up hydro -cylinder (8) that moved outwash bearing (7) under the drive in outwash supporting seat (7) lower part down, outwash supporting seat (7) upper portion is provided with down the unsteady template (four to six -tenehs) of outwash down, unsteady template (6) up -and -down motion of outwash under outwash (4) companion under outwash (4) make under outwash unsteady template (6) support down, hydro -cylinder (8) external servo control device. The utility model discloses servo hydraulic drive and position sensor feedback position closed loop control system is utilized, pressure, position and the synchro control of high accuracy can be realized, the high response motion control ware of cooperation, system all repeated positioning accuracy can reach 0.05mm.
Description
Technical field
This utility model relates to a kind of powder metallurgy die elastic deformation compensation mechanism, belongs to powder metallurgical technology.
Background technology
In powder metallurgy product forming process, when using multilayer film to be washed into type, stamping length is different, and pressure suffered by stamping profiled section forming direction is consistent, and according to elastic deformation relation, the elastic deformation amount of stamping is different.When upper punch backhaul withdrawal of pressure, goods are lifted off the stamping that elastic deformation is little by the bottom punch that elastic deformation is big, cause goods when the demoulding because subregion cracks without effectively supporting.
Without the system of compensation, before the demoulding starts also for terminating, goods are lifted off lower Wai Chong and lower interior punching by the bottom punch that resilience is big.Before the demoulding does not terminates after starting, die is drop-down, and owing under goods, Wai Chong and the lower interior profiled section that rushes support without stamping, the frictional force between die die cavity and goods causes product deformation to destroy, and causes off quality.
Utility model content
This utility model is for drawbacks described above, it is therefore intended that provides a kind of and can form the powder metallurgy die elastic deformation compensation mechanism to goods excellent support in knockout course.
For this technical solution adopted in the utility model it is: this utility model includes that being arranged on lower outer punching props up the oil cylinder (8) that under the driving of bearing (7) bottom, punching bearing (7) is moved outward, described lower outer punching is propped up bearing (7) top and is provided with the lower outer floating template (6) that rushes, and the described lower outer floating template (6) that rushes supports lower outer punching (4) and makes lower outer punching (4) move up and down in company with the lower outer floating template (6) that rushes；Described oil cylinder (8) external Servocontrol device.
Described Servocontrol device includes the position sensor detecting oil cylinder (8) location status, described position sensor connection motion controller the information detected by position sensor feed back to motion controller, described motion controller connects servomotor, described servomotor connects oil pump and regulates the pump oil mass of oil pump, and described oil pump is connected to described oil cylinder (8).
Oil cylinder piston (11) on oil cylinder (8) is outside equipped with stop nut (12), and the described stop nut (12) position on piston (11) is adjustable, is provided with the step of stop limit nut (12) in described oil cylinder (8).
Setting interior punching (5) in described lower outer punching (4), described lower outer punching (4), lower interior punching (5) form the support to goods (3), the length of interior punching (5) under being shorter in length than of lower outer punching (4).
The utility model has the advantages that: 1) completely newly utilize servo-hydraulic to drive and position sensor feedback position-force control system, high-precision pressure, position and Synchronization Control can be realized, coordinating high responsive movement controller, system system repetitive positioning accuracy is up to 0.05mm.
2) using alone the hydraulic pump of driven by servomotor, on-demand fuel feeding, when standby, motor is without rotating, and consumes electric energy hardly, and energy-saving effect is notable；Accurately control moment of torsion and the rotating speed of servomotor, it is achieved high-precision pressure and flow-control；Thermal equilibrium temperature is low, the on-demand operating of motor, and almost without temperature rise and noise, the Hydraulic Elements life-span is long.
3) using the Stroke Control mode of both of which, i.e. stroke position servo closed loop control mode and mechanical stepless adjustable stop control model, control form is comprehensively, rationally；
4) perform oil cylinder and be arranged on below template, reduce dust and executive component is polluted, and similar mechanism designs above template.Change conventional irrational design version.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is enlarged drawing at oil cylinder in Fig. 1.
Figure 1 is upper punch, 2 be die, 3 be goods, 4 be lower outer punching, 5 be lower interior punching, 6 for lower outer rush floating template, 7 for lower outer punching prop up bearing, 8 be oil cylinder, 9 be fixed form, 10 be lower connecting plate, 11 be piston, 12 for stop nut.
Detailed description of the invention
This utility model includes that being arranged on lower outer punching props up the oil cylinder 8 driving lower outer punching bearing 7 motion of bearing 7 bottom, described lower outer punching is propped up bearing 7 top and is provided with the lower outer floating template 6 that rushes, and the described lower outer floating template 6 that rushes supports lower outer punching 4 and makes lower outer punching 4 move up and down in company with the lower outer floating template 6 that rushes；The described external Servocontrol device of oil cylinder 8.
Described Servocontrol device includes the position sensor detecting oil cylinder 8 location status, described position sensor connection motion controller the information detected by position sensor feed back to motion controller, described motion controller connects servomotor, described servomotor connects oil pump and regulates the pump oil mass of oil pump, and described oil pump is connected to described oil cylinder 8.
Oil cylinder piston 11 on oil cylinder 8 is outside equipped with stop nut 12, and the described stop nut 12 position on piston 11 is adjustable, is provided with the step of stop limit nut 12 in described oil cylinder 8.
Setting interior punching 5 in described lower outer punching 4, described lower outer punching 4, lower interior punching 5 form the support to goods 3, the length of interior punching 5 under being shorter in length than of lower outer punching 4.
Below this utility model is further illustrated:
This utility model: 1) prop up in lower outer punching oil cylinder 8 is set below bearing 7, control the Oil pump electrical machinery that the hydraulic servo control apparatus of oil cylinder 8 motion comprises the driven by servomotor of, the Unidirectional solenoid valve of pressure-adjustable, overflow valve.
2) die 2 is arranged on concave template, and powder in die 2 cavity is pressed by upper punch 1, suppresses goods 3；Lower outer punching 4 and lower interior punching 5 are each responsible for two steps of goods 3 lower surface；Lower outer punching 4 is shorter than lower interior punching 5, therefore in compacting loading process, elastic deformation produced by two drifts is different；According to elastic deformation theory, when by the press power of same pressure, length is directly proportional to elastic deformation amount, therefore lower interior punching 5 is bigger than lower outer punching 4 deflection.
3), after compacting terminates, upper punch 1 is removed pressure and is returned；The press power being now implemented in undershoot 1 is also cancelled, therefore elastic release, goods 3 can upwards be pushed up, and make goods 3 leave lower outer punching 4 by the lower interior punching 5 that now deflection is big.
4) before the demoulding starts, servo motor driven oil pump oiling in oil cylinder 8, oil cylinder 7 promotes lower outer punching bearing 7 and lower outer rushes floating template 6 upwards jack-up, supports processed goods 3, it is ensured that goods 3 will not crack and cause defective products because of the support of punching 4 outer under departing from when the demoulding.
The stroke of this utility model oil cylinder 8 can be by position sensor feedback to motion controller, and motion controller controls motion and the feeding of servomotor.Servomotor drives oil pump to the appropriate appropriate hydraulic oil of elastic deformation system feeding.The stroke of oil cylinder 8 is measured by position sensor again and is then compared by the stroke of controller with input, is consequently formed one stroke closed loop system；Required stroke can be inputted by touch screen.
Further stroke of the present utility model can also switch to machinery stop pattern.The stroke that elastic deformation compensates can be controlled by regulation elastic deformation stroke limit nut 12；Concrete data again can be by position sensor feedback to touch screen and read.
This utility model uses servo hydraulic system and terminal location sensor to realize large closed-loop control elastic deformation compensation dosage, can pass through man-machine interactive system direct stepless changing compensation dosage, control accuracy 0.05mm；Actually used stroke in view of compensation system may be the least, only < stroke within 2mm, for prevention under high-speed circulating, the digital independent feedback of servo-control system causes instability, thus individually designed mechanical trip is spacing, can freely switch travel control mode.
Claims (5)
1. powder metallurgy die elastic deformation compensation mechanism, its feature as, prop up bearing (7) bottom including being arranged on lower outer punching
Driving the oil cylinder (8) that lower outer punching bearing (7) is moved, described lower outer punching is propped up bearing (7) top and is provided with and lower outer rushes floating template
(6), the described lower outer floating template (6) that rushes supports lower outer punching (4) and makes lower outer punching (4) outer to rush floating template (6) upper and lower in company with lower
Motion；Described oil cylinder (8) external Servocontrol device.
Powder metallurgy die elastic deformation compensation mechanism the most according to claim 1, its feature is as, described SERVO CONTROL
Device includes the position sensor detecting oil cylinder (8) location status, and described position sensor connects motion controller and by position
The information that sensor detects feeds back to motion controller, and described motion controller connects servomotor, and described servomotor is even
Connecing oil pump and regulate the pump oil mass of oil pump, described oil pump is connected to described oil cylinder (8).
Powder metallurgy die elastic deformation compensation mechanism the most according to claim 1, it is characterised in that on oil cylinder (8)
Oil cylinder piston (11) is outside equipped with stop nut (12), and the described stop nut (12) position on piston (11) is adjustable, described
The step of stop limit nut (12) it is provided with in oil cylinder (8).
Powder metallurgy die elastic deformation compensation mechanism the most according to claim 1, it is characterised in that described lower outer punching
(4) setting interior punching (5) in, described lower outer punching (4), lower interior punching (5) form the support to goods (3), and the length of lower outer punching (4) is short
Length in lower interior punching (5).
Powder metallurgy die elastic deformation compensation mechanism the most according to claim 1, it is characterised in that described oil cylinder (8)
Number is two, and under symmetrical being arranged on, bearing (7) lower section is propped up in outer punching, and is supported by fixed form (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853512.2U CN205464312U (en) | 2015-10-30 | 2015-10-30 | Powder metallurgy die elastic deformation compensation mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520853512.2U CN205464312U (en) | 2015-10-30 | 2015-10-30 | Powder metallurgy die elastic deformation compensation mechanism |
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| Publication Number | Publication Date |
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| CN205464312U true CN205464312U (en) | 2016-08-17 |
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| CN201520853512.2U Active CN205464312U (en) | 2015-10-30 | 2015-10-30 | Powder metallurgy die elastic deformation compensation mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215355A (en) * | 2015-10-30 | 2016-01-06 | 扬州市海力精密机械制造有限公司 | Powder metallurgy die elastic deformation compensation mechanism and the course of work thereof |
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2015
- 2015-10-30 CN CN201520853512.2U patent/CN205464312U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215355A (en) * | 2015-10-30 | 2016-01-06 | 扬州市海力精密机械制造有限公司 | Powder metallurgy die elastic deformation compensation mechanism and the course of work thereof |
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