CN204471914U - Back punching type hydraulic press - Google Patents
Back punching type hydraulic press Download PDFInfo
- Publication number
- CN204471914U CN204471914U CN201420860650.9U CN201420860650U CN204471914U CN 204471914 U CN204471914 U CN 204471914U CN 201420860650 U CN201420860650 U CN 201420860650U CN 204471914 U CN204471914 U CN 204471914U
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- CN
- China
- Prior art keywords
- hydraulic fluid
- guide
- fluid port
- directional control
- solenoid directional
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of back punching type hydraulic press, the stationary work-table comprising support, oil cylinder and at least two guide pillars, connect firmly with guide pillar, what the guide pillar below stationary work-table slided is provided with travelling table, and travelling table connects with the piston rod of oil cylinder; Quick chamber is provided with in described piston rod, quick chamber is connected with an actuator port of solenoid directional control valve, this actuator port is connected with the rodless cavity hydraulic fluid port of oil cylinder by guide type sequence valve, rodless cavity hydraulic fluid port is also connected with fuel tank by prefill valve, the connecting line of guide type sequence valve and rodless cavity hydraulic fluid port is provided with pressure switch, another actuator port of solenoid directional control valve is connected with guide's hydraulic fluid port of the rod chamber hydraulic fluid port of oil cylinder and prefill valve, the oil-in of solenoid directional control valve is connected with fuel tank by oil pump, and the oil return opening of solenoid directional control valve is connected with fuel tank.The utility model has impact and vibrates little, that stretching speed is fast advantage, and be applicable to the operating mode needing static pressure, operating efficiency is high.
Description
Technical field
the utility model relates to a kind of hydraulic press.
Background technology
Its travelling table multidigit of the pillar hydraulic press of current use is in the top of stationary work-table, and during use, oil cylinder pushing travelling table is descending, carries out extruding or punching press; This structure utilizes the deadweight of travelling table to strengthen extruding force, but when its shortcoming is work, shock and vibration is comparatively large, be not suitable for the operating mode needing static pressure, and the stretching speed of cylinder piston rod cannot control further, the cycle completing one stroke is longer, and operating efficiency is lower.
Summary of the invention
The purpose of this utility model is the above-mentioned deficiency for prior art, provides a kind of back punching type hydraulic press, and it has impacts and vibrates little, that stretching speed is fast advantage, and be applicable to the operating mode needing static pressure, operating efficiency is high.
For achieving the above object, back punching type hydraulic press of the present utility model, the stationary work-table comprising support, be fixedly arranged on oil cylinder on support and at least two guide pillars, connect firmly with all guide pillars, what it is characterized in that the guide pillar below stationary work-table slides is provided with travelling table, and travelling table connects with the piston rod of oil cylinder; Quick chamber is provided with in described piston rod, quick chamber is connected with an actuator port of solenoid directional control valve, this actuator port is connected with the rodless cavity hydraulic fluid port of oil cylinder by guide type sequence valve, rodless cavity hydraulic fluid port is also connected with fuel tank by prefill valve, the connecting line of guide type sequence valve and rodless cavity hydraulic fluid port is provided with pressure switch, another actuator port of solenoid directional control valve is connected with guide's hydraulic fluid port of the rod chamber hydraulic fluid port of oil cylinder and prefill valve, the oil-in of solenoid directional control valve is connected with fuel tank by oil pump, and the oil return opening of solenoid directional control valve is connected with fuel tank.
During use, travelling table pushes away by piston rod, has coordinated extruding with stationary work-table, can overcome the impact of travelling table self gravitation, has and impacts and vibrate little advantage, be applicable to the operating mode needing static pressure; Meanwhile, by the quick chamber fuel feeding in piston rod, piston rod moves rear in-oil cylinder rodless cavity and forms negative pressure, and prefill valve is opened rodless cavity repairing, and piston rod translational speed is very fast, and the cycle completing one stroke is shorter, improves operating efficiency;
As further improvement of the utility model, guide pillar is provided with upper stroke switch and lower stroke switch, is provided with collision block at travelling table, upper stroke switch and lower stroke switch all with the associated electric motor of oil pump; When collision block is respectively close to upper stroke switch and lower stroke switch, reach up extreme position and backward position, now motor quits work, and can improve security.
In sum, the utility model has impact and vibrates little, that stretching speed is fast advantage, and be applicable to the operating mode needing static pressure, operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is the front view of the utility model embodiment.
Fig. 2 is the hydraulic schematic diagram of the utility model embodiment.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
shown in Fig. 1 and Fig. 2, this back punching type hydraulic press, the stationary work-table 4 comprising support 1, be fixedly arranged on oil cylinder 2 on support 1 and two guide pillars 3, connect firmly with all guide pillars 3, what two guide pillars 3 below stationary work-table 4 slided is provided with travelling table 5, travelling table 5 connects with the piston rod 6 of oil cylinder 2, guide pillar 3 is provided with upper stroke switch 15 and lower stroke switch 16, is provided with collision block 17 at travelling table 5, quick chamber 7 is provided with in described piston rod 6, quick chamber 7 is connected with an actuator port B of solenoid directional control valve 8, this actuator port B is connected with the rodless cavity hydraulic fluid port of oil cylinder 2 by guide type sequence valve 9, rodless cavity hydraulic fluid port is also connected with fuel tank 18 by prefill valve 10, guide type sequence valve 9 with the connecting line of rodless cavity hydraulic fluid port are provided with pressure switch 11, another actuator port A of solenoid directional control valve 8 is connected with the rod chamber hydraulic fluid port of oil cylinder 2 and guide's hydraulic fluid port of prefill valve 10, the oil inlet P of solenoid directional control valve 8 is connected with fuel tank 12 by oil pump 13, the oil return inlet T of solenoid directional control valve 8 is connected with fuel tank 12.
During use, when solenoid directional control valve 8 its spool charged moves to left, hydraulic oil enters quick chamber 7 by the oil inlet P of solenoid directional control valve 8 through actuator port B, promote piston rod 6 and travelling table 5 up, rodless cavity simultaneously in the up rear oil cylinder 2 of piston rod 6 forms negative pressure, prefill valve 10 is opened, and the hydraulic oil in fuel tank 12 is through prefill valve 10 pairs of rodless cavity repairings, and piston rod translational speed is very fast; When travelling table 5 is up to coordinate pressing component with stationary work-table 4 time, hydraulic fluid pressure rises rapidly owing to being subject to resistance, when this pressure reaches the opening pressure of guide type sequence valve 9, hydraulic oil enters the rodless cavity in oil cylinder 2 through guide type sequence valve 9, improve compacting power, and prefill valve 10 is closed by hydraulic oil, when hydraulic fluid pressure continues the set pressure rising to pressure switch 11, pressure switch 11 sends signal, now can cut off the power supply of solenoid directional control valve 8, and its spool gets back to meta; When solenoid directional control valve 8 its spool charged moves to right, hydraulic oil to be entered the rod chamber in oil cylinder 2 through actuator port A by the oil inlet P of solenoid directional control valve 8, promote backward stroke of the piston, open prefill valve 10 simultaneously, fluid in rodless cavity flows back to fuel tank through prefill valve 10, and the fluid in quick chamber 7 flows back to fuel tank through actuator port B, oil return inlet T; When collision block 17 is respectively close to upper stroke switch 15 or lower stroke switch 16, reach up extreme position and backward position, now motor quits work, and can improve security.
The utility model, by the up impact overcoming travelling table self gravitation of travelling table 5, has and impacts and vibrate little advantage, be applicable to the operating mode needing static pressure; Piston rod 6 can stretch out fast, and the cycle completing one stroke is shorter, improves operating efficiency.
Claims (2)
1. a back punching type hydraulic press, the stationary work-table comprising support, be fixedly arranged on oil cylinder on support and at least two guide pillars, connect firmly with all guide pillars, what it is characterized in that the guide pillar below stationary work-table slides is provided with travelling table, and travelling table connects with the piston rod of oil cylinder; Quick chamber is provided with in described piston rod, quick chamber is connected with an actuator port of solenoid directional control valve, this actuator port is connected with the rodless cavity hydraulic fluid port of oil cylinder by guide type sequence valve, rodless cavity hydraulic fluid port is also connected with fuel tank by prefill valve, the connecting line of guide type sequence valve and rodless cavity hydraulic fluid port is provided with pressure switch, another actuator port of solenoid directional control valve is connected with guide's hydraulic fluid port of the rod chamber hydraulic fluid port of oil cylinder and prefill valve, the oil-in of solenoid directional control valve is connected with fuel tank by oil pump, and the oil return opening of solenoid directional control valve is connected with fuel tank.
2. back punching type hydraulic press according to claim 1, is characterized in that on guide pillar, be provided with upper stroke switch and lower stroke switch, is provided with collision block at travelling table, upper stroke switch and lower stroke switch all with the associated electric motor of oil pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860650.9U CN204471914U (en) | 2014-12-31 | 2014-12-31 | Back punching type hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420860650.9U CN204471914U (en) | 2014-12-31 | 2014-12-31 | Back punching type hydraulic press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204471914U true CN204471914U (en) | 2015-07-15 |
Family
ID=53627701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420860650.9U Expired - Fee Related CN204471914U (en) | 2014-12-31 | 2014-12-31 | Back punching type hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204471914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790548A (en) * | 2018-07-24 | 2018-11-13 | 山东招金金银精炼有限公司 | A kind of imprinting tool of sheet metal, system and method |
-
2014
- 2014-12-31 CN CN201420860650.9U patent/CN204471914U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108790548A (en) * | 2018-07-24 | 2018-11-13 | 山东招金金银精炼有限公司 | A kind of imprinting tool of sheet metal, system and method |
| CN108790548B (en) * | 2018-07-24 | 2024-01-23 | 山东招金金银精炼有限公司 | Stamping tool, system and method for metal sheet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150715 Termination date: 20171231 |