CN108656599B - Self-adaptive airtight device of upper die pad of punching machine - Google Patents
Self-adaptive airtight device of upper die pad of punching machine Download PDFInfo
- Publication number
- CN108656599B CN108656599B CN201810763558.3A CN201810763558A CN108656599B CN 108656599 B CN108656599 B CN 108656599B CN 201810763558 A CN201810763558 A CN 201810763558A CN 108656599 B CN108656599 B CN 108656599B
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- China
- Prior art keywords
- air
- piston
- fixed seat
- air passage
- sealing ring
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- 238000004080 punching Methods 0.000 title claims abstract description 5
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000003044 adaptive effect Effects 0.000 claims 3
- 238000009434 installation Methods 0.000 abstract description 10
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
- B30B1/38—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure wherein the plungers are operated by pressure of a gas, e.g. steam, air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention discloses a self-adaptive airtight device of an upper die cushion of a punching machine, which is characterized by comprising a fixed seat and a piston, wherein the lower end of the fixed seat is fixedly connected with an air bag or an air cylinder body in a sealing way; the air-tight device has the advantages of good sealing performance and convenient installation, the air-tight interface of the air-tight device and the air storage cavity of the sliding block does not need any rigid connection such as bolts, and also does not need any positioning device, so that the loosening and displacement conditions of the air-tight device and the air storage cavity of the sliding block are avoided, and the maintenance is also very simple.
Description
Technical Field
The invention relates to a punch press, in particular to a self-adaptive airtight device for an upper die pad of the punch press.
Background
The upper die cushion is installed on the slide block of the press and has a device similar to the stretching cushion in action, and the functions of shallow drawing forming, edge pressing and the like of the stamping part are realized through the travel and the pressure of an air bag or an air cylinder. At present, an air bag or an air cylinder body in an upper die cushion is generally and directly fixedly connected with a sliding block through a screw and is communicated with an air storage cavity in the sliding block, as shown in fig. 1, the lower end of the air bag 100 is fixedly connected with a top plate 200, the upper end of the air bag 100 is hermetically connected with a fixing seat 300, the fixing seat 300 is fixedly connected with the sliding block 400 through the screw, and the air bag 100 is communicated with the air storage cavity 500 on the sliding block 400. Because the space for installing the upper die pad in the sliding block is narrow, the structure needs to ensure the air tightness between the air bag and the air storage cavity in a screw connection mode, so that the installation and maintenance of the upper die pad are complex and difficult, spot inspection cannot be performed, and the air bag leaks air due to the fact that the screw between the fixed seat and the sliding block is easily loosened in long-time stamping vibration of the sliding block, so that the air bag is greatly maintained in small faults.
Disclosure of Invention
The invention aims to solve the technical problem of providing the self-adaptive airtight device of the upper die cushion of the punch press, which is simple to install and maintain, does not need spot inspection, and can ensure the tightness between an air bag or an air cylinder body and an air storage cavity.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a self-adaptation airtight device of punch press upper die pad, includes fixing base and piston, the lower extreme of fixing base and gasbag or cylinder body sealing fixed connection, the fixing base on be provided with first air flue, the piston set up in the fixing base and with fixing base sealing sliding fit, the lower extreme of piston be provided with spring mounting chamber, spring mounting chamber with first air flue be linked together, spring mounting intracavity be provided with the spring, the spring support be in the piston with the fixing base between, the piston on be provided with the second air flue that first air flue is linked together, the up end of piston fixedly be provided with the sealing ring, the sealing ring offset with the lower terminal surface of slider gas storage chamber, the second air flue with slider gas storage chamber be linked together.
Further, the fixed seat on fixedly be provided with the retaining ring, the retaining ring cover be in the piston on, the internal surface of retaining ring an organic whole be provided with first location step, the surface of piston an organic whole be provided with the second location step, first location step with the second location step offset, in order to prevent the piston roll-off the fixed seat.
Further, the cross section shape of the sealing ring is C-shaped, the upper end of the piston is fixedly provided with a connecting ring, and the sealing ring is sleeved on the inner circumferential surface of the connecting ring.
Further, an installation groove with a shape matched with that of the sealing ring is formed in the inner circumferential surface of the connecting ring, and the sealing ring is nested in the installation groove.
Further, the first air passage and the second air passage are coaxially arranged, and the air passage formed by the first air passage and the second air passage is in a horn shape with a large caliber and a small caliber; the structure further ensures the tightness between the airtight device and the air storage cavity of the sliding block.
Compared with the prior art, the invention has the advantages that:
1. The sealing ring fixed at the upper end of the piston in the airtight device is propped against the lower end face of the sliding block air storage cavity, and the spring is propped between the piston and the fixed seat, so that the airtight device is assembled into the sliding block of the punch after being fixedly connected with the air bag or the cylinder body in a sealing way, the installation is convenient, the airtight device is integrally pushed in after being assembled outside, any rigid connection such as bolts is not needed at the airtight interface of the airtight device and the sliding block air storage cavity, any positioning device is not needed, the loosening and shifting conditions of the airtight device and the sliding block air storage cavity are avoided, and the maintenance is also very simple;
2. When the sealing device is assembled, the sealing ring is upwards extruded through the thrust of the spring and the air pressure acting on the piston, so that the sealing ring and the lower end surface of the air storage cavity of the sliding block form a seal, and as part of the thrust comes from the air pressure of the air bag or the air cylinder body, the acting force for extruding the sealing ring is in direct proportion to the change of the air pressure and the pressure, namely, the sealing state can be maintained under any condition;
3. the plurality of airtight devices can be used simultaneously and are relatively independent, and installation and machining errors among the airtight devices are not required to be considered.
Drawings
FIG. 1 is a schematic diagram of a conventional upper die pad airtight structure;
FIG. 2 is a schematic view of the installation of the present invention;
fig. 3 is an enlarged schematic view (i.e., a schematic structural view of the present invention) of fig. 2 at a.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in the figure, a self-adaptive airtight device of upper die pad of punch press, including fixing base 1, piston 2, retaining ring 3 and sealing ring 6, fixing base 1's lower extreme and gasbag or cylinder body 4 sealing fixed connection, be provided with first air flue 11 on the fixing base 1, piston 2 sets up in fixing base 1 and with fixing base 1 sealing sliding fit, retaining ring 3 cover is on piston 2 and with fixing base 1 fixed connection, the internal surface of retaining ring 3 is integrative to be provided with first location step 31, the surface of piston 2 is integrative to be provided with second location step 21, first location step 31 offsets with second location step 21, in order to prevent piston 2 roll-off fixing base 1, the lower extreme of piston 2 is provided with spring installation chamber (not marked in the figure), spring installation chamber is linked together with first air flue 11, be provided with spring 5 in the spring installation chamber, spring 5 supports between piston 2 and fixing base 1, be provided with the second air flue 22 that is linked together with first air flue 11 on the piston 2, first air flue 11 and second air flue 22 coaxial setting, and first air flue 11 is big end down's horn shape that the air flue that second air flue 22 formed, first air flue 11 offsets with second air flue 6 bore shape, the sealing ring shape that is big end down is connected with the sealing ring 6 in the air flue 7, the sealing ring shape is located in the sealing ring 8 is linked together with the sealing ring shape of sealing ring 8, the sealing ring is located in the sealing ring 8, the sealing ring is linked to the sealing ring shape.
Claims (5)
1. The self-adaptive airtight device for the die cushion on the punching machine is characterized by comprising a fixed seat and a piston, wherein the lower end of the fixed seat is fixedly connected with an air bag or an air cylinder body in a sealing way, the fixed seat is provided with a first air passage, the piston is arranged in the fixed seat and is in sealing sliding fit with the fixed seat, the lower end of the piston is provided with a spring mounting cavity, the spring mounting cavity is communicated with the first air passage, a spring is arranged in the spring mounting cavity, the spring abuts against between the piston and the fixed seat, the piston is provided with a second air passage communicated with the first air passage, the upper end face of the piston is fixedly provided with a sealing ring, the sealing ring abuts against the lower end face of a sliding block air storage cavity, and the second air passage is communicated with the sliding block air storage cavity.
2. An adaptive air-tight device for an upper die pad of a press as claimed in claim 1, wherein: the fixed seat on fixedly be provided with the retaining ring, the retaining ring cover be in on the piston, the internal surface of retaining ring an organic whole be provided with first location step, the surface of piston an organic whole be provided with the second location step, first location step with the second location step offset, in order to prevent the piston roll-off the fixed seat.
3. An adaptive air-tight device for an upper die pad of a press as claimed in claim 1, wherein: the cross section shape of the sealing ring is C-shaped, the upper end of the piston is fixedly provided with a connecting ring, and the sealing ring is sleeved on the inner circumferential surface of the connecting ring.
4. A self-adapting air-tight device for an upper die pad of a punching machine as claimed in claim 3, characterized in that: the inner circumferential surface of the connecting ring is provided with a mounting groove with a shape matched with that of the sealing ring, and the sealing ring is nested in the mounting groove.
5. An adaptive air-tight device for an upper die pad of a press as claimed in claim 1, wherein: the first air passage and the second air passage are coaxially arranged, and the air passage formed by the first air passage and the second air passage is in a horn shape with a large caliber and a small caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763558.3A CN108656599B (en) | 2018-07-12 | 2018-07-12 | Self-adaptive airtight device of upper die pad of punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810763558.3A CN108656599B (en) | 2018-07-12 | 2018-07-12 | Self-adaptive airtight device of upper die pad of punching machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108656599A CN108656599A (en) | 2018-10-16 |
| CN108656599B true CN108656599B (en) | 2024-05-17 |
Family
ID=63772687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810763558.3A Active CN108656599B (en) | 2018-07-12 | 2018-07-12 | Self-adaptive airtight device of upper die pad of punching machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108656599B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2017419A (en) * | 1931-12-30 | 1935-10-15 | Mercier Jean | Cushioning device |
| US4832317A (en) * | 1982-03-11 | 1989-05-23 | Dunlop Limited A British Company | Fluid pressure devices |
| US4860571A (en) * | 1986-09-26 | 1989-08-29 | Kenneth L. Smedberg | Power press with improved cushioning system |
| TW512079B (en) * | 2001-02-02 | 2002-12-01 | Komatsu Mfg Co Ltd | Die cushioning device |
| JP2005297021A (en) * | 2004-04-13 | 2005-10-27 | Komatsu Ltd | Die cushion equipment |
| CN201052671Y (en) * | 2006-12-28 | 2008-04-30 | 重庆工学院 | Die carrier for realizing exact punching on common pressing machine |
| CN101817044A (en) * | 2010-03-12 | 2010-09-01 | 山东高密高锻机械有限公司 | Single-top crown type upper air cushion of straight side press |
| CN201618774U (en) * | 2010-01-06 | 2010-11-03 | 宁波澳玛特高精冲压机床股份有限公司 | Pneumatic die cushion device |
| CN103801612A (en) * | 2012-11-08 | 2014-05-21 | 江苏华商企业管理咨询服务有限公司 | Air cushion |
| CN104364551A (en) * | 2012-06-08 | 2015-02-18 | 康蒂泰克空气弹簧系统有限公司 | Rolling piston for an air spring rolling bellows |
| CN107387641A (en) * | 2017-08-09 | 2017-11-24 | 安徽红桥金属制造有限公司 | A kind of air spring with rock-steady structure |
| CN108099254A (en) * | 2016-11-25 | 2018-06-01 | 会田工程技术有限公司 | Force of sliding friction generation mechanism and its autofrettage, die cushion and metal pattern |
| CN209111567U (en) * | 2018-07-12 | 2019-07-16 | 金丰（中国）机械工业有限公司 | A kind of adaptive gas check of upper die of punching press pad |
-
2018
- 2018-07-12 CN CN201810763558.3A patent/CN108656599B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2017419A (en) * | 1931-12-30 | 1935-10-15 | Mercier Jean | Cushioning device |
| US4832317A (en) * | 1982-03-11 | 1989-05-23 | Dunlop Limited A British Company | Fluid pressure devices |
| US4860571A (en) * | 1986-09-26 | 1989-08-29 | Kenneth L. Smedberg | Power press with improved cushioning system |
| TW512079B (en) * | 2001-02-02 | 2002-12-01 | Komatsu Mfg Co Ltd | Die cushioning device |
| JP2005297021A (en) * | 2004-04-13 | 2005-10-27 | Komatsu Ltd | Die cushion equipment |
| CN201052671Y (en) * | 2006-12-28 | 2008-04-30 | 重庆工学院 | Die carrier for realizing exact punching on common pressing machine |
| CN201618774U (en) * | 2010-01-06 | 2010-11-03 | 宁波澳玛特高精冲压机床股份有限公司 | Pneumatic die cushion device |
| CN101817044A (en) * | 2010-03-12 | 2010-09-01 | 山东高密高锻机械有限公司 | Single-top crown type upper air cushion of straight side press |
| CN104364551A (en) * | 2012-06-08 | 2015-02-18 | 康蒂泰克空气弹簧系统有限公司 | Rolling piston for an air spring rolling bellows |
| CN103801612A (en) * | 2012-11-08 | 2014-05-21 | 江苏华商企业管理咨询服务有限公司 | Air cushion |
| CN108099254A (en) * | 2016-11-25 | 2018-06-01 | 会田工程技术有限公司 | Force of sliding friction generation mechanism and its autofrettage, die cushion and metal pattern |
| CN107387641A (en) * | 2017-08-09 | 2017-11-24 | 安徽红桥金属制造有限公司 | A kind of air spring with rock-steady structure |
| CN209111567U (en) * | 2018-07-12 | 2019-07-16 | 金丰（中国）机械工业有限公司 | A kind of adaptive gas check of upper die of punching press pad |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108656599A (en) | 2018-10-16 |
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