CN201736456U - Pressure pad device of mechanical press - Google Patents
Pressure pad device of mechanical press Download PDFInfo
- Publication number
- CN201736456U CN201736456U CN2010202508805U CN201020250880U CN201736456U CN 201736456 U CN201736456 U CN 201736456U CN 2010202508805 U CN2010202508805 U CN 2010202508805U CN 201020250880 U CN201020250880 U CN 201020250880U CN 201736456 U CN201736456 U CN 201736456U
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- valve
- cylinder
- hydraulic ram
- mandril
- rod chamber
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Abstract
The utility model relates to a pressure pad device of a mechanical press, which comprises a mandril supporting plate equipped with a mandril, a cylinder with a power source and a hydraulic ram without the power source, wherein the cylinder with the power source and the hydraulic ram without the power source are fixedly connected with the mandril supporting plate; a rod chamber and a non-rod chamber of the hydraulic ram are respectively connected with an oil tank through an oil pipe; a replenishing valve is connected in series to the oil pipe; a supercharging oil path is connected to the non-rod chamber of the hydraulic ram; and an unloading oil path is connected to the rod chamber. The hydraulic ram is supercharged by the supercharging oil path after a slider descends to press the mandril, and then is matched with the cylinder to meet the requirement of a rated pressure; the cylinder needs not to be designed into a bulky multistage cylinder, and meanwhile the air source consumption is reduced, so that the user' use cost is considerably lowered; and after the slider ascends, the unloading loop of the hydraulic ram is locked, unloaded quickly and unloaded slowly in sequence according to technological requirements, so that the mandril is static at first, then ascends quickly, and finally ascends slowly when reaching the top dead center, which reduces high impact and noise.
Description
Technical field
The utility model relates to a kind of punching machine pressure pad device, particularly a kind of compact conformation and energy-conservation punching machine pressure pad device.
Background technology
The pressure pad of punching machine plays flanging and inloading part effect when being used for pull and stretch, play the head part effect during stamping-out, and present pressure pad is pneumatic, connecting cylinder by air accumulator combines, for reaching specified tonnage, the cylinder of air cushion is made multistage cylinder usually, and is bulky.And in technical process, require pressure pad not rise immediately with slide block and reset, but reset again after a period of time that lags behind, avoid workpiece deformation, this function is called the pressure spot blocking function.For realizing this blocking function, need on the multistage cylinder to connect extra locking assembly, further increased volume.Bury underground below the general press bench with below the face of land, darker melt pit need to be set, the forcing press about 400T for example, its melt pit is generally more than 5 meters, and the melt pit cost is high, brings serious financial burden to enterprise.
In addition, the stroke height of pressure pad generally needs and can regulate, and need install stroke control mechanism in addition additional, and its cost of manufacture is higher.
The utility model content
The technical problems to be solved in the utility model provides a kind of compact conformation and energy-conservation punching machine pressure pad device.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of punching machine pressure pad device, comprise the push rod supporting plate that push rod is installed, it is characterized in that: also comprise cylinder with power source and passive delivery hydraulic jack, both all fixedly connected with the push rod supporting plate, and cylinder is connected with the air compressor air accumulator; The rod chamber of hydraulic jack is connected with fuel tank by oil pipe respectively with rodless cavity, and prefill valve is housed on the oil pipe; Rodless cavity at hydraulic jack is connected with a Pressure Increasing Oil-Line, on this Pressure Increasing Oil-Line overflow valve is installed, and rod chamber is connected with an off-load oil circuit, on this off-load oil circuit the valve that carries out flow-control is installed.
Further, described overflow valve also can be replaced by flow speed control valve, operated proportional flow control valve or proportional pressure control valve.
Further, the described valve that is used for flow-control can be operated proportional flow control valve, choke valve, flow speed control valve, overflow throttle valve or flow divider-combiner.
Advantage of the present utility model is: this pressure pad is combined by cylinder and passive delivery hydraulic jack, hydraulic jack carries out supercharging by Pressure Increasing Oil-Line after slide block down is pushed down push rod, cooperate with cylinder and to reach the rated pressure requirement, need not to be provided with cylinder is designed to bulky multistage cylinder, saved manufacturing cost and user the expensive expense of large-scale melt pit has been set, reduce consumption of air source simultaneously, thereby significantly reduced customer using cost; After slide block is up, the relief circuit of hydraulic jack is carried out locking, quick relief and slowly off-load respectively according to technological requirement under cylinder cooperates, make push rod at first static, fast uplink then, slowly up during near the top dead centre of required stroke, reduce large impact and noise, and can realize the electrodeless adjusting of lift rod stroke.
Description of drawings
Accompanying drawing is the utility model punching machine pressure pad device example structure schematic diagram.
The specific embodiment
As shown in drawings, comprise the push rod supporting plate 2 that push rod 1 is installed, push rod 1 top is provided with and is mated slide block 9 slide blocks 3 that carry out workpiece compression moulding and is driven by toggle and do periodically uply, OK, also comprises cylinder with power source 3, and passive delivery hydraulic jack 4.
During concrete the action: push rod 1 is in top dead center position, slide block 9 row impellers, and this moment, the rodless cavity of hydraulic jack 4 was promoted to rated pressure in the effect downforce of overflow valve 5, and slide block 9 compresses, shaping workpiece.After slide block 9 compacting is finished, initial uplink, at this moment, hydraulic jack 4 off-load oil circuits solenoid directional control valve 6,7 all close, the off-load oil circuit is closed, hydraulic jack 4 is in blocking, cylinder 3 can't promote to move on hydraulic jack 4 and the push rod 1, push rod 1 is static; Slide block 9 continues up, solenoid directional control valve 6,7 is opened, and cylinder 3 promotes hydraulic jack 4 and push rod 1 fast uplink, during near push rod 1 top dead centre, solenoid directional control valve 6 cuts out, solenoid directional control valve 7 continues to open, and under the effect of choke valve 8, hydraulic jack 4 rod chamber oil extraction speed are slowed down, push rod 1 is slowly up, avoid high speed impact and noise, solenoid directional control valve 6,7 all cuts out, and push rod stops at the top dead centre of required stroke.
Claims (3)
1. a punching machine pressure pad device comprises the push rod supporting plate that push rod is installed, and it is characterized in that: also comprise cylinder with power source and passive delivery hydraulic jack, both all fixedly connected with the push rod supporting plate, and cylinder is connected with the air compressor air accumulator; The rod chamber of hydraulic jack is connected with fuel tank by oil pipe respectively with rodless cavity, and prefill valve is housed on the oil pipe; Rodless cavity at hydraulic jack is connected with a Pressure Increasing Oil-Line, on this Pressure Increasing Oil-Line overflow valve is installed, and rod chamber is connected with an off-load oil circuit, on this off-load oil circuit the valve that carries out flow-control is installed.
2. punching machine pressure pad device according to claim 1 is characterized in that: described overflow valve also can be replaced by flow speed control valve, operated proportional flow control valve or proportional pressure control valve.
3. punching machine pressure pad device according to claim 1 is characterized in that: the described valve that is used for flow-control can be operated proportional flow control valve, choke valve, flow speed control valve, overflow throttle valve or flow divider-combiner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202508805U CN201736456U (en) | 2010-07-08 | 2010-07-08 | Pressure pad device of mechanical press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202508805U CN201736456U (en) | 2010-07-08 | 2010-07-08 | Pressure pad device of mechanical press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201736456U true CN201736456U (en) | 2011-02-09 |
Family
ID=43551739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202508805U Expired - Fee Related CN201736456U (en) | 2010-07-08 | 2010-07-08 | Pressure pad device of mechanical press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201736456U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310579A (en) * | 2010-07-08 | 2012-01-11 | 南通锻压设备股份有限公司 | Pressure pad device of mechanical press |
| CN102518613A (en) * | 2011-12-03 | 2012-06-27 | 南京埃尔法电液技术有限公司 | Bender hydraulic system |
| CN108457843A (en) * | 2018-03-30 | 2018-08-28 | 漳州群利机械制造有限公司 | A kind of pressure-air suppressor |
-
2010
- 2010-07-08 CN CN2010202508805U patent/CN201736456U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102310579A (en) * | 2010-07-08 | 2012-01-11 | 南通锻压设备股份有限公司 | Pressure pad device of mechanical press |
| CN102518613A (en) * | 2011-12-03 | 2012-06-27 | 南京埃尔法电液技术有限公司 | Bender hydraulic system |
| CN108457843A (en) * | 2018-03-30 | 2018-08-28 | 漳州群利机械制造有限公司 | A kind of pressure-air suppressor |
| CN108457843B (en) * | 2018-03-30 | 2019-05-21 | 漳州群利机械制造有限公司 | A kind of pressure-air suppressor |
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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: 20110209 Termination date: 20180708 |