CN102166595A - Lower limit device capable of being applied to press machine extending air cushion - Google Patents
Lower limit device capable of being applied to press machine extending air cushion Download PDFInfo
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- CN102166595A CN102166595A CN 201010617509 CN201010617509A CN102166595A CN 102166595 A CN102166595 A CN 102166595A CN 201010617509 CN201010617509 CN 201010617509 CN 201010617509 A CN201010617509 A CN 201010617509A CN 102166595 A CN102166595 A CN 102166595A
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- switch
- air cushion
- lower limit
- hole
- press machine
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Abstract
The invention discloses a lower limit device capable of being applied to a press machine extending air cushion. The device is characterized in that: a through hole is formed on the side wall of a press machine base; a Z-shaped bracket on which a cushion plate is fastened is fixed on the inner side of the side wall through hole; a switch mounting hole is formed below the Z-shaped bracket; a sensing face of a switch faces the externally fastened mounting hole; and a sensing block is fixed on a face, which corresponds to the side wall of the press machine base, of an extending cushion supporting plate. Because lower limit sensation is directly performed on the supporting plate, the limitation is more accurate when the device is compared with a mechanical travel switch. At the same time, because the device is not contacted with an oil tank and is not bumped, the probability of leaking oil is avoided and the service life of the lower limit device is prolonged.
Description
Technical field
The invention belongs to forging and pressing industrial automation equipment technical field.Be applied to in the forcing press drawing and forming process to the control of stroke.
Background technology
Compacting heavy parts or dark tensioning member adopts the stretching air cushion often on the large pressing machine, and flanging prevents wrinklingly when stretching, and uses as liftout or workpiece bottom partial plastic forming.After forcing press is equipped with the pad that stretches, can enlarge the purposes scope of forcing press, finish darker stretching work.The traditional mechanical type lower caging device that fills up that stretches is installed under the buffer oil tank of the pad bottom that stretches, in drawing process, often be subjected to the bump of pull bar lower end scotch easily, sealing ring between fuel tank and the lower caging device was lost efficacy, cause the inaccurate and leakage of oil of lower limit.In the actual industrial production process, guarantee the accuracy of lower limit and prevent that leakage of oil from becoming a kind of technical barrier.Invent a kind of novel stretching pad lower caging device,, improve quality and precision that tensioning member is shaped, be of great practical significance satisfying the demand of suitability for industrialized production.
Summary of the invention
Technical problem to be solved by this invention is: design a kind of novel stretching pad lower caging device, avoid the inaccurate and oil leakage phenomenon of lower limit, improve quality and precision that tensioning member is shaped.Reduce maintenance load and maintenance cost.
For solving the problems of the technologies described above, the present invention proposes following technical scheme: a kind of lower caging device that can be used for forcing press stretching air cushion, its feature is: open a through hole at the sidewall of press base, the Z-shaped support that is fastened with backing plate is fixed on the inboard of described sidewall through hole.Below described Z-shaped support, be provided with the switch installing hole.The sensitive surface of switch is fastened on the installing hole outwardly.On stretch corresponding of pad supporting plate and described press base sidewall, fix a sensor block.The diameter of described through hole is 300mm.Described switch is that electronic proximity switch or switch tongue tube are near switch.When using tongue tube near switch, sensor block need be used magnetic.Adopted the lower caging device that can be used for forcing press stretching air cushion of above technical scheme, in process of production, can guarantee the accuracy of lower limit and prevent leakage of oil, improve quality and precision that tensioning member is shaped, thereby enhance productivity, reduced maintenance cost and idle cost
Description of drawings
Below in conjunction with accompanying drawing structure of the present invention is elaborated.
Fig. 1 can be used for the shaft side figure of the lower caging device of forcing press stretching air cushion for the present invention
Fig. 2 can be used for the lower caging device scheme of installation of forcing press stretching air cushion for the present invention
Fig. 3 is a prior art--old-fashioned mechanical lower caging device schematic diagram
The specific embodiment
Fig. 1 demonstrates the structure that the present invention can be used for the lower caging device of forcing press stretching air cushion:
The top of Z-shaped support 2 is fastened with backing plate 3, and the below is provided with switch installing hole 8, and the sensitive surface of switch 1 is fastened on the installing hole 8 outwardly.
Fig. 2 further demonstrates the installation position of lower caging device on forcing press that the present invention can be used for forcing press stretching air cushion.Be to open a through hole 4 at the sidewall of press base 6.The diameter of this through hole 4 is 300mm in this example.The Z-shaped support 2 that will be fastened with backing plate 3 again is fixed on the inboard of described sidewall through hole 4.On stretch corresponding of pad supporting plate 7 and press base 6 sidewalls, fix a sensor block 5 then.Switch 1 can be selected electronic proximity switch for use, also can select for use tongue tube near switch, and when selecting for use tongue tube near switch, the pad supporting plate 7 that stretches is gone up fixing sensor block 5 with corresponding of press base 6 sidewalls and need be selected magnetic for use.Need to adjust after the installation, when the pad that stretches is in lower limit, adjusts its position and make near switch and align with sensor block.Produced and in, when the pad that stretches is got back to the lower position by the operating position, can respond to sensor block near switch, send signal, finish corresponding technological action.The present invention is owing to directly supporting plate being carried out the lower limit induction, and is spacing more accurate with respect to the mechanical stroke travel switch.Do not contact simultaneously, be not impacted the working life of having avoided the possibility of leakage of oil and having prolonged lower caging device with fuel tank.The quality and the precision that the invention enables tensioning member to be shaped are further enhanced.
As contrast, what Fig. 3 represented is prior art--old-fashioned mechanical lower caging device schematic diagram
Among the figure sequence number represent 9 respectively, the mechanical type limit switch.10, wear-resisting oil.11, collision block.12, pull bar.
Claims (5)
1. lower caging device that can be used for forcing press stretching air cushion, it is characterized in that: open a through hole (4) at the sidewall of press base (6), the Z-shaped support (2) that will be fastened with backing plate (3) is fixed on the inboard of described sidewall through hole (4), be provided with switch installing hole (8) in described Z-shaped support (2) below, the sensitive surface of switch (1) is fastened on the installing hole (8) outwardly; On stretch corresponding of pad supporting plate (7) and described press base (6) sidewall, fix a sensor block (5).
2. the lower caging device that can be used for forcing press stretching air cushion according to claim 1 is characterized in that: the diameter of described through hole (4) is 300mm.
3. the lower caging device that can be used for forcing press stretching air cushion according to claim 1 and 2 is characterized in that: described switch (1) is an electronic proximity switch.
4. the lower caging device that can be used for forcing press stretching air cushion according to claim 1 and 2 is characterized in that: described switch tongue tube is near switch.
5. the lower caging device that can be used for forcing press stretching air cushion according to claim 4 is characterized in that: described sensor block (5) is a magnetic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617509 CN102166595A (en) | 2010-12-30 | 2010-12-30 | Lower limit device capable of being applied to press machine extending air cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010617509 CN102166595A (en) | 2010-12-30 | 2010-12-30 | Lower limit device capable of being applied to press machine extending air cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102166595A true CN102166595A (en) | 2011-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010617509 Pending CN102166595A (en) | 2010-12-30 | 2010-12-30 | Lower limit device capable of being applied to press machine extending air cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102166595A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188324A (en) * | 2017-12-26 | 2018-06-22 | 合肥合锻智能制造股份有限公司 | The air cushion adjustment limiting device that a kind of mechanical press uses |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663049Y (en) * | 2003-11-28 | 2004-12-15 | 太原航空仪表有限公司 | Automatic feeding device for a bellow stretcher |
| US20060169018A1 (en) * | 2005-02-01 | 2006-08-03 | Fanuc Ltd | Die cushion control device |
| CN200998925Y (en) * | 2006-12-20 | 2008-01-02 | 合肥锻压机床有限公司 | Hydraulic cushion stroke stopping means for single-function sheet hydraulic drawing press |
| CN101594946A (en) * | 2006-11-30 | 2009-12-02 | 米勒魏恩加滕股份公司 | Die cushion device with hybrid drive |
-
2010
- 2010-12-30 CN CN 201010617509 patent/CN102166595A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2663049Y (en) * | 2003-11-28 | 2004-12-15 | 太原航空仪表有限公司 | Automatic feeding device for a bellow stretcher |
| US20060169018A1 (en) * | 2005-02-01 | 2006-08-03 | Fanuc Ltd | Die cushion control device |
| CN101594946A (en) * | 2006-11-30 | 2009-12-02 | 米勒魏恩加滕股份公司 | Die cushion device with hybrid drive |
| CN200998925Y (en) * | 2006-12-20 | 2008-01-02 | 合肥锻压机床有限公司 | Hydraulic cushion stroke stopping means for single-function sheet hydraulic drawing press |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108188324A (en) * | 2017-12-26 | 2018-06-22 | 合肥合锻智能制造股份有限公司 | The air cushion adjustment limiting device that a kind of mechanical press uses |
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Application publication date: 20110831 |