CN201036916Y - Pressure automatic tracing perforating and cutting buffer device - Google Patents
Pressure automatic tracing perforating and cutting buffer device Download PDFInfo
- Publication number
- CN201036916Y CN201036916Y CNU2006201654244U CN200620165424U CN201036916Y CN 201036916 Y CN201036916 Y CN 201036916Y CN U2006201654244 U CNU2006201654244 U CN U2006201654244U CN 200620165424 U CN200620165424 U CN 200620165424U CN 201036916 Y CN201036916 Y CN 201036916Y
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- pressure
- oil cylinder
- cylinder
- blanking
- damping
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- Presses And Accessory Devices Thereof (AREA)
Abstract
The utility model relates to a pressure automatic following blanking damping device with a supercharging oil cylinder, consisting of a main oil cylinder, a damping cylinder, a pressure unloading control block and a return electromagnetic reversing valve which form a pressure automatic following blanking damping mechanism. The utility model is characterized in that: the pressure automatic following blanking damping device is provided with a supercharging oil cylinder and a reset electromagnetic reversing valve of the supercharging oil cylinder; the supercharging oil cylinder inputs a blanking pressure signal and the output pressure after supercharging is transmitted to the damping cylinder through a damping hole. In general, the maximum blanking buffering power of a presser is far from the normal force; the arrangement of the supercharging oil cylinder can reduce the internal cross-sectional area of the damping oil cylinder on the basis of keeping original performances, and the buffering power automatically follows the blanking force. The utility model has the significant advantages of material saving, cost reduction, reduction of occupied space, etc.
Description
Technical field
The utility model relates to hydraulic press system, more specifically says so and pressure is followed automatically the stamping-out buffer unit of " full tonnage ".
Background technology
In hydraulic press system, pressure is followed " full tonnage " stamping-out buffer unit automatically and has been reached the purpose that can absorb the surge energy when stamping-out ruptures controllably, best, has played the effect of protecting forcing press and mould and reducing noise.Its structure and principle require the interior sectional area of cushion dashpot to equal or be slightly larger than the interior sectional area of master cylinder.But in most technical process, the press power of slide block often uses nominal pressure, and blanking pressure has only 1/2nd or 1/3rd of nominal pressure, even littler.According to original technology, both just like this, in order to satisfy pressing conditions, the interior sectional area of cushion dashpot still must equal or be slightly larger than the interior sectional area of master cylinder.Obviously, under the stamping-out condition of work, the interior area of section of unnecessary cushion dashpot brings the waste in material, cost and occupation of land space.
Summary of the invention
The utility model is for avoiding above-mentioned existing in prior technology weak point, provide a kind of pressure to follow the stamping-out buffer unit automatically with pressurizing cylinder, when maximum stamping-out cushion effect only is the 1/N of nominal pressure, (for example N can be 2,3,4) the interior sectional area of cushion cylinder is manufactured and designed only 1/N, and accomplish to make cushion effect to follow blanking pressure automatically for sectional area in the master cylinder, thereby with the interior area of section that reduces cushion dashpot, reduce system cost, reduce and take up room.
The technical scheme that the utility model technical solution problem is adopted is:
The utility model adopts by master cylinder, cushion dashpot, pressure off-load controll block, and the pressure that the backhaul solenoid directional control valve constitutes is followed the stamping-out buffer gear automatically;
Design feature of the present utility model is pressurizing cylinder to be set and to provide the pressurizing cylinder in the loop that the resets solenoid directional control valve that resets for pressurizing cylinder, pressurizing cylinder is input with the stamping-out pressure signal, and the output pressure after the pressurizing cylinder supercharging transfers to cushion dashpot by damping hole as compensator or trimmer pressure.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
The utility model is to increase a pressurizing cylinder with less swept volume is set on existing pressure is followed the basis of stamping-out buffer gear automatically, if the pressure ratio of pressurizing cylinder is N: 1, then on the basis that keeps original performance, the interior sectional area of cushion cylinder is compressible to be the 1/N in cross section in the master cylinder, and cushion effect is followed blanking pressure automatically, and this will be in economical with materials, reduce cost, reduce each side such as take up room brings remarkable result.
Description of drawings
Accompanying drawing is the utility model structural representation.
Number in the figure: 1 master cylinder, 2 cushion dashpots, 3 pressurizing cylinders, 4 workpiece, 5 slide blocks, Y1 are that reset solenoid directional control valve, Y2 of pressurizing cylinder is that pressure off-load controll block, Y3 are that backhaul solenoid directional control valve, K1 are damping hole.
Below pass through the specific embodiment, and in conjunction with the accompanying drawings the utility model is further described.
The specific embodiment
Referring to accompanying drawing, by prior art, adopt, and the pressure that backhaul solenoid directional control valve Y3 constitutes is followed the stamping-out buffer gear automatically by master cylinder 1, cushion dashpot 2, pressure off-load controll block Y2.
In the present embodiment, on the basis of above-mentioned prior art, increase a pressurizing cylinder 3 with less swept volume is set, its pressure ratio is N: 1, and pressurizing cylinder solenoid directional control valve Y1 that resets, specifically adopting Y1 is the two-position four-way solenoid directional control valve.Pressurizing cylinder 3 is to be input signal with stamping-out pressure P 1, and the output of pressurizing cylinder 3 transfers to cushion dashpot 2 by damping hole K1 as compensator or trimmer pressure P2.
As shown in the figure, the oil cylinder internal diameter that master cylinder 1 is set is D1, and cushion dashpot 2 is two, and the cylinder bore of each cushion dashpot 2 is D2, and the big cylinder bore of pressurizing cylinder 3 is D3, and little cylinder bore is D4, pressure ratio=(D3/D4)
2
Below provide the parameter mix proportion scheme of each oil cylinder for example:
1, the nominal pressure of master cylinder 1 is 5000KN, and sectional area is 2000cm in the master cylinder
2, oil cylinder inside diameter D 1=500mm.
2, maximum cushioning power is 2500KN, is 1/2 of nominal pressure, selects two cushion dashpots 2 for use, and the range of cushion dashpot is 100mm.
3, the cushion effect of each cushion dashpot 2 is 1250KN, sectional area 500cm in the cushion dashpot
2, cushion dashpot inside diameter D 2=250mm.
4, sectional area is decided to be 2000/10=200cm by sectional area design in 1/10 master cylinder in the vat of pressurizing cylinder 3
2, D3=160mm.
The pressure ratio of pressurizing cylinder 32: 1, i.e. P2: P1=2: 1.
Sectional area in the little cylinder of pressurizing cylinder 3=200 ÷ 2=100cm
2, select D4=110mm.
Pressurizing cylinder range 100mm.
The buffering course of work is as follows:
Stamping-out buffering: in the stamping-out process, the pressure P 1 that is produced by blanking pressure increases to P2 through pressurizing cylinder 3 with pressure, and P2=2P1, P2 pass to two cushion dashpots 2.Like this, yes has followed blanking pressure automatically for cushion effect.When workpiece 4 was punched fracture, just cushion dashpot 2 was held slide block 5, and the solenoid directional control valve among the pressure off-load this moment controll block Y2 powers on, and the high-voltage oil liquid of two cushion dashpot bottoms is through damping hole and solenoid directional control valve time-delay release, thus the realization pooling feature.
Oil cylinder resets:
Reset solenoid directional control valve Y1 and backhaul solenoid directional control valve Y3 of pressurizing cylinder powers on, and under the effect of backhaul pressure oil P3, promoted:
The backhaul of a, master cylinder 1.
The jack-up of b, cushion dashpot 2 resets.
Resetting of c, pressurizing cylinder 3.
Claims (1)
1. the pressure of band pressurizing cylinder is followed the stamping-out buffer unit automatically, employing is by master cylinder (1), cushion dashpot (2), pressure off-load controll block (Y2), and the pressure that backhaul solenoid directional control valve (Y3) constitutes is followed the stamping-out buffer gear automatically: it is characterized in that being provided with pressurizing cylinder (3) and provide the pressurizing cylinder in the loop that the resets solenoid directional control valve (Y1) that resets for pressurizing cylinder (3), described pressurizing cylinder (3) is input with stamping-out pressure signal (P1), and the output pressure after pressurizing cylinder (3) supercharging transfers to cushion dashpot (2) by damping hole as compensator or trimmer pressure (P2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201654244U CN201036916Y (en) | 2006-12-08 | 2006-12-08 | Pressure automatic tracing perforating and cutting buffer device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201654244U CN201036916Y (en) | 2006-12-08 | 2006-12-08 | Pressure automatic tracing perforating and cutting buffer device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201036916Y true CN201036916Y (en) | 2008-03-19 |
Family
ID=39209425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201654244U Expired - Fee Related CN201036916Y (en) | 2006-12-08 | 2006-12-08 | Pressure automatic tracing perforating and cutting buffer device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201036916Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486097A (en) * | 2013-10-10 | 2014-01-01 | 西安天宇重工有限公司 | Piston-type supercharger of large hydraulic machine |
| CN104259292A (en) * | 2014-08-01 | 2015-01-07 | 浙江大学 | Quick return type blanking buffer device and hydropress for blanking |
| CN104842584A (en) * | 2015-05-04 | 2015-08-19 | 浙江大学 | Self-adaptive cushion cylinder blanking buffering method |
-
2006
- 2006-12-08 CN CNU2006201654244U patent/CN201036916Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486097A (en) * | 2013-10-10 | 2014-01-01 | 西安天宇重工有限公司 | Piston-type supercharger of large hydraulic machine |
| CN104259292A (en) * | 2014-08-01 | 2015-01-07 | 浙江大学 | Quick return type blanking buffer device and hydropress for blanking |
| CN104842584A (en) * | 2015-05-04 | 2015-08-19 | 浙江大学 | Self-adaptive cushion cylinder blanking buffering method |
| CN104842584B (en) * | 2015-05-04 | 2016-05-04 | 浙江大学 | A kind of automatic adaptation cushion cylinder stamping-out way to play for time |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HEFEI METALFORMING MACHINE TOOL CO., LTD. Free format text: FORMER NAME: HEFEI METALFORMING MACHINE TOOL LIMITED |
|
| CP03 | Change of name, title or address |
Address after: 230601 Hefei economic and Technological Development Zone, Anhui, No. 123 Ziyun Road Patentee after: Hefei Metalforming Machine Tool Co., Ltd. Address before: 230022 No. 65 Wangjiang West Road, Anhui, Hefei Patentee before: Hefei Metalforming Machine Tools Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080319 Termination date: 20151208 |
|
| EXPY | Termination of patent right or utility model |