CN111299390A - Variable stroke type punching machine - Google Patents
Variable stroke type punching machine Download PDFInfo
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- CN111299390A CN111299390A CN202010179369.9A CN202010179369A CN111299390A CN 111299390 A CN111299390 A CN 111299390A CN 202010179369 A CN202010179369 A CN 202010179369A CN 111299390 A CN111299390 A CN 111299390A
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- cavity
- oil
- hydraulic cavity
- piston
- hydraulic
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
- B21D22/02—Stamping using rigid devices or tools
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/161—Control arrangements for fluid-driven presses controlling the ram speed and ram pressure, e.g. fast approach speed at low pressure, low pressing speed at high pressure
Abstract
The invention relates to a stroke-variable punching machine which comprises a stand column, wherein an upper hydraulic cavity, a die mounting chamber, a lower hydraulic cavity, a first vertical oil duct and a second vertical oil duct are arranged in the stand column, an upper piston divides the upper hydraulic cavity into an upper hydraulic cavity lower oil cavity communicated with the first vertical oil duct and an upper hydraulic cavity upper oil cavity communicated with the second vertical oil duct, the upper piston is connected with an upper die fixing seat in the die mounting chamber through an upper ejector rod, the lower piston divides the lower hydraulic cavity into a lower hydraulic cavity upper oil cavity communicated with the second vertical oil duct and a lower hydraulic cavity lower oil cavity communicated with the first vertical oil duct, a lower piston is connected with a lower die fixing seat in the die mounting chamber through a lower ejector rod, and the lower piston is driven by a driving oil cylinder. The lower die fixing seat and the upper die fixing seat can move simultaneously, and the problem of low stamping efficiency caused by the fact that only one of the lower die fixing seat and the upper die fixing seat can be driven to move by a hydraulic oil cylinder of a downward-moving stamping machine and the strokes of the hydraulic oil cylinder are equal is solved.
Description
Technical Field
The invention relates to machining equipment of mechanical parts, in particular to a variable stroke type punching machine.
Background
A press is a device for processing mechanical parts. A prior art press is disclosed in patent application No. CN 201410225809.4. The existing punching machine realizes punching by folding one of a lower die fixing seat and an upper die fixing seat in a moving mode in the action process, and the folding stroke of the die is the output quantity of a hydraulic oil cylinder, so that the punching efficiency is low.
Disclosure of Invention
The invention aims to provide a stroke-variable punching machine with a lower die fixing seat and an upper die fixing seat moving simultaneously, and solves the problem of low punching efficiency caused by the fact that a hydraulic oil cylinder of a downward-moving punching machine can only drive one of the lower die fixing seat and the upper die fixing seat to move and the strokes of the lower die fixing seat and the upper die fixing seat are equal.
The technical problem is solved by the following technical scheme: a stroke-variable punching machine comprises a machine base, a driving oil cylinder, a lower die fixing base, an upper die fixing base and a stand column connected to the machine base through a connecting frame, wherein an upper hydraulic cavity, a die mounting chamber and a lower hydraulic cavity are sequentially arranged in the stand column from top to bottom, a first vertical oil duct and a second vertical oil duct are further arranged in the stand column, an upper piston is connected in the upper hydraulic cavity in a sliding and sealing mode and divides the upper hydraulic cavity into an upper hydraulic cavity lower oil cavity and an upper hydraulic cavity upper oil cavity, the upper piston is connected with an upper ejector rod extending into the die mounting chamber through the upper hydraulic cavity lower oil cavity, the upper die fixing base is connected to the upper ejector rod, the upper hydraulic cavity lower oil cavity is provided with an upper hydraulic cavity lower oil cavity inlet and outlet hole communicated with the first vertical oil duct, the upper hydraulic cavity upper oil cavity is provided with an upper hydraulic cavity upper oil inlet and outlet hole communicated with the second vertical oil duct, the lower hydraulic cavity is internally and slidably connected with a lower piston in a sealing mode, the lower piston divides the lower hydraulic cavity into a lower hydraulic cavity upper oil cavity and a lower hydraulic cavity lower oil cavity, the lower piston is connected with a lower ejector rod which stretches into the die mounting chamber through the lower hydraulic cavity upper oil cavity, a lower die fixing seat is connected onto the lower ejector rod, the lower hydraulic cavity upper oil cavity is provided with a lower hydraulic cavity upper oil cavity oil inlet and outlet hole communicated with the second vertical oil duct, the lower hydraulic cavity lower oil cavity is provided with a lower hydraulic cavity lower oil cavity oil inlet and outlet hole communicated with the first vertical oil duct, the lower piston is connected with a driving rod which stretches out through the lower hydraulic cavity lower oil cavity, and the driving rod is connected with a piston rod of the driving oil cylinder. When the punching die is used, the upper die is fixed on the upper die fixing seat, the lower die is fixed on the lower die fixing seat, a workpiece blank to be punched is placed on the lower die, then the hydraulic cylinder is driven to output, the hydraulic cylinder outputs, the lower die fixing seat is jacked, and the upper die fixing seat is driven to move downwards at the same time, so that a workpiece is punched. Through hydraulic transmission, the punching press is not easy to damage. The reaction force that produces when this technical scheme pneumatic cylinder drive lower mould fixing base carries out the punching press turns into the punching press power of last mould fixing base, and the reaction force that produces when going up the punching press of mould fixing base equally turns into the punching press power of lower mould fixing base to can play the effect that reduces the punching press vibration.
Preferably, the cross-sectional area of the upper piston is equal to the cross-sectional area of the lower piston. The closing speeds of the upper die and the lower die can be equal.
Preferably, the mold installation chamber is opened at only one side in the horizontal direction to form an operation hole. The sealing performance of the die installation chamber can be improved, so that splashes such as noise, sparks and the like generated in the stamping process are not easy to escape out of the die during installation. The safety and environmental protection are good.
Preferably, a sound insulating layer of the mold housing part is provided on an inner surface of the mold housing. The sound insulation effect can be improved.
Preferably, the soundproof layer of the mold housing part is made of a fireproof material. The fireproof effect can be improved.
Preferably, the operation hole is hinged to a hole cover through a hinge, and an axis of the hinge when the hinge rotates extends in the vertical direction. When the punching action is performed, the hole cover covers the operation hole, so that the safety and the environmental protection during the operation can be further improved.
Preferably, the inner surface of the hole cover is provided with a hole cover sound insulation layer. The sound insulation effect can be further improved.
Preferably, the soundproof layer of the hole cover part is made of a fireproof material. The fire protection effect can be further improved.
Preferably, the pillar is cylindrical. The layout of each cavity inside the device is convenient, and the utilization rate of the inner space is convenient to improve.
The invention has the following advantages: the lower die fixing seat and the upper die fixing seat are driven simultaneously through one hydraulic oil cylinder, so that the folding speed of the lower die fixing seat and the upper die fixing seat is greater than the output speed of the hydraulic oil cylinder, and the effect of improving the stamping efficiency is achieved; the transmission mode of the oil cylinder for driving the lower die fixing seat and the upper die fixing seat is hydraulic transmission, all oil ways of the hydraulic transmission are integrated in the upright post, and no external oil way interface is arranged, so that the appearance is neat, the phenomenon of dripping is not easy to generate, and the environmental protection performance is good; the integration level is high; the compactness is good.
Drawings
FIG. 1 is an axial cross-sectional schematic view of the present invention.
FIG. 2 is a schematic view of the sectional view A-A of FIG. 1 with the hole cover closed.
Fig. 3 is a partially enlarged schematic view of fig. 2 at B.
Fig. 4 is a schematic view illustrating the opening of the hole cover according to the present invention.
In the figure: the device comprises a machine base 1, a driving oil cylinder 2, a lower die fixing seat 3, an upper die fixing seat 4, a connecting frame 5, a stand column 6, a die mounting chamber 7, a first vertical oil duct 8, a second vertical oil duct 9, an upper piston 10, an upper hydraulic cavity lower oil chamber 11, an upper hydraulic cavity upper oil chamber 12, an upper ejector rod 13, a die mounting chamber part sound insulation layer 14, an upper hydraulic cavity lower oil chamber oil inlet and outlet hole 15, an upper hydraulic cavity upper oil chamber oil inlet and outlet hole 16, a lower piston 17, a lower hydraulic cavity upper oil chamber 18, a lower hydraulic cavity lower oil chamber 19, a lower ejector rod 20, a lower hydraulic cavity upper oil chamber oil inlet and outlet hole 21, a lower hydraulic cavity lower oil chamber oil inlet and outlet hole 22, a driving rod 23, an operation hole 24, a hinge 25, a hole cover 26 and a hole cover part sound insulation layer 27.
Detailed Description
The invention is further described with reference to the following figures and examples.
Referring to fig. 1, a stroke-variable punching machine comprises a machine base 1, a driving oil cylinder 2, a lower die fixing seat 3, an upper die fixing seat 4 and a stand column 6 connected to the machine base through a connecting frame 5. An upper hydraulic cavity, a die mounting chamber 7 and a lower hydraulic cavity are sequentially arranged in the upright column from top to bottom. A first vertical oil duct 8 and a second vertical oil duct 9 are also arranged in the upright column. An upper piston 10 is connected in the upper hydraulic cavity in a sliding and sealing way. The upper piston divides the upper hydraulic chamber into an upper hydraulic chamber lower oil chamber 11 and an upper hydraulic chamber upper oil chamber 12. The upper piston is connected with an upper ejector rod 13 which extends into the die mounting chamber through a lower oil cavity of the upper hydraulic cavity. The upper die fixing seat is connected to the upper ejector rod. The inner surface of the die-attaching chamber is provided with a die-attaching chamber portion soundproof layer 14. The sound insulation layer of the die chamber part is made of fireproof materials. The upper hydraulic cavity lower oil cavity is provided with an upper hydraulic cavity lower oil cavity oil inlet and outlet hole 15 communicated with the first vertical oil channel. The upper hydraulic cavity upper oil cavity is provided with an upper hydraulic cavity upper oil cavity inlet and outlet oil hole 16 communicated with the second vertical oil channel. A lower piston 17 is connected in the lower hydraulic chamber in a sliding and sealing manner. The lower piston divides the lower hydraulic chamber into a lower hydraulic chamber upper oil gallery 18 and a lower hydraulic chamber lower oil gallery 19. The lower piston is connected with a lower ejector rod 20 which extends into the die mounting chamber through an upper oil cavity of the lower hydraulic cavity. The lower die fixing seat is connected to the lower ejector rod. The upper oil cavity of the lower hydraulic cavity is provided with an oil inlet and outlet hole 21 communicated with the upper oil cavity of the second vertical oil channel. The lower oil cavity of the lower hydraulic cavity is provided with a lower oil cavity oil inlet and outlet hole 22 communicated with the first vertical oil passage. The lower piston is connected to a drive rod 23 which extends through the lower oil chamber of the lower hydraulic chamber. The driving rod is connected with a piston rod of the driving oil cylinder. The cylinder body of the driving oil cylinder is connected to the base. The cross-sectional area of the upper piston is equal to the cross-sectional area of the lower piston.
Referring to fig. 2, 3 and 4, the mold installation chamber is opened at only one side in the horizontal direction to form an operation hole 24. The access opening is hinged with an aperture cover 26 by means of a hinge 25. The axis when the hinge rotates extends along the up-and-down direction. The inner surface of the hole cover is provided with a hole cover sound insulation layer 27. The sound insulation layer of the hole cover part is made of fireproof materials. The stand is cylindrical.
When the stamping die is used, the upper die is fixed on the upper die fixing seat, the lower die is fixed on the lower die fixing seat, and a workpiece blank to be stamped is placed on the lower die; and then closing the hole cover, finally driving a piston rod of a hydraulic oil cylinder to extend through a hydraulic station, outputting by the hydraulic oil cylinder, jacking the lower die fixing seat, and simultaneously driving the upper die fixing seat to move downwards so as to punch and form the workpiece.
Claims (6)
1. A stroke-variable punching machine comprises a machine base, a driving oil cylinder, a lower die fixing seat and an upper die fixing seat, and is characterized by further comprising a stand column connected to the machine base through a connecting frame, wherein an upper hydraulic cavity, a die mounting chamber and a lower hydraulic cavity are sequentially arranged in the stand column from top to bottom, a first vertical oil duct and a second vertical oil duct are further arranged in the stand column, an upper piston is connected in the upper hydraulic cavity in a sliding and sealing mode and divides the upper hydraulic cavity into an upper hydraulic cavity lower oil cavity and an upper hydraulic cavity upper oil cavity, the upper piston is connected with an upper ejector rod extending into the die mounting chamber through the upper hydraulic cavity lower oil cavity, the upper die fixing seat is connected to the upper ejector rod, the upper hydraulic cavity lower oil cavity is provided with an upper hydraulic cavity lower oil cavity inlet and outlet hole communicated with the first vertical oil duct, the upper hydraulic cavity is provided with an upper hydraulic cavity upper oil inlet and outlet hole communicated with the second vertical oil duct, the lower hydraulic cavity is internally and slidably connected with a lower piston in a sealing mode, the lower piston divides the lower hydraulic cavity into a lower hydraulic cavity upper oil cavity and a lower hydraulic cavity lower oil cavity, the lower piston is connected with a lower ejector rod which stretches into the die mounting chamber through the lower hydraulic cavity upper oil cavity, a lower die fixing seat is connected onto the lower ejector rod, the lower hydraulic cavity upper oil cavity is provided with a lower hydraulic cavity upper oil cavity oil inlet and outlet hole communicated with the second vertical oil duct, the lower hydraulic cavity lower oil cavity is provided with a lower hydraulic cavity lower oil cavity oil inlet and outlet hole communicated with the first vertical oil duct, the lower piston is connected with a driving rod which stretches out through the lower hydraulic cavity lower oil cavity, and the driving rod is connected with a piston rod of the driving oil cylinder.
2. The variable stroke press according to claim 1 wherein the cross sectional area of the upper piston is equal to the cross sectional area of the lower piston.
3. The variable stroke press according to claim 1, wherein only one side of the die mounting chamber in the horizontal direction is opened to form the operation hole.
4. The variable stroke press according to claim 3 wherein the interior surface of the die mounting chamber is provided with a die mounting chamber portion acoustic barrier.
5. The variable stroke press according to claim 4 wherein the sound insulation layer of the die chamber portion is made of a fire resistant material.
6. The variable stroke press according to claim 1 wherein the posts are cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010179369.9A CN111299390A (en) | 2020-03-16 | 2020-03-16 | Variable stroke type punching machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010179369.9A CN111299390A (en) | 2020-03-16 | 2020-03-16 | Variable stroke type punching machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111299390A true CN111299390A (en) | 2020-06-19 |
Family
ID=71153167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010179369.9A Withdrawn CN111299390A (en) | 2020-03-16 | 2020-03-16 | Variable stroke type punching machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN111299390A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117282826A (en) * | 2023-09-19 | 2023-12-26 | 苏州骏恩电子科技有限公司 | Stamping equipment capable of preventing displacement |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4218953A1 (en) * | 1992-06-10 | 1993-12-16 | Rexroth Mannesmann Gmbh | Hydraulic drive for sheet metal forming machine - has differential cylinder for press piston, suction oil pump and delivery oil pump for two cylinder halves |
| CN102554092A (en) * | 2010-12-29 | 2012-07-11 | 张家港市九鼎机械有限公司 | Forging device |
| CN103358389A (en) * | 2013-07-05 | 2013-10-23 | 山东宏发科工贸有限公司 | Intelligent single-cylinder dual-pressure forming equipment |
| CN104441201A (en) * | 2014-10-30 | 2015-03-25 | 西安交通大学 | Bisynchronous press-vibration brick machine |
| CN204640850U (en) * | 2015-05-14 | 2015-09-16 | 河源普益硬质合金厂有限公司 | A kind of double power 100 T lateral pressure adjustable press |
| CN105216360A (en) * | 2015-10-19 | 2016-01-06 | 上海理工大学 | Miniature double action hydraulic press and manufacturing process |
| CN107907661A (en) * | 2017-12-15 | 2018-04-13 | 中国科学院地质与地球物理研究所兰州油气资源研究中心 | Deep Basin reservoir rock and fluid interaction simulator and application method |
| CN207594374U (en) * | 2017-10-24 | 2018-07-10 | 佛山市南海区云锋金属制品有限公司 | A kind of efficient double acting hydraulic test of four columns |
| CN110065141A (en) * | 2019-04-17 | 2019-07-30 | 王君国 | A kind of working principle of bidirectional hydraulic press |
| CN110091534A (en) * | 2018-01-31 | 2019-08-06 | 会田工程技术有限公司 | Pressure system |
-
2020
- 2020-03-16 CN CN202010179369.9A patent/CN111299390A/en not_active Withdrawn
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4218953A1 (en) * | 1992-06-10 | 1993-12-16 | Rexroth Mannesmann Gmbh | Hydraulic drive for sheet metal forming machine - has differential cylinder for press piston, suction oil pump and delivery oil pump for two cylinder halves |
| CN102554092A (en) * | 2010-12-29 | 2012-07-11 | 张家港市九鼎机械有限公司 | Forging device |
| CN103358389A (en) * | 2013-07-05 | 2013-10-23 | 山东宏发科工贸有限公司 | Intelligent single-cylinder dual-pressure forming equipment |
| CN104441201A (en) * | 2014-10-30 | 2015-03-25 | 西安交通大学 | Bisynchronous press-vibration brick machine |
| CN204640850U (en) * | 2015-05-14 | 2015-09-16 | 河源普益硬质合金厂有限公司 | A kind of double power 100 T lateral pressure adjustable press |
| CN105216360A (en) * | 2015-10-19 | 2016-01-06 | 上海理工大学 | Miniature double action hydraulic press and manufacturing process |
| CN207594374U (en) * | 2017-10-24 | 2018-07-10 | 佛山市南海区云锋金属制品有限公司 | A kind of efficient double acting hydraulic test of four columns |
| CN107907661A (en) * | 2017-12-15 | 2018-04-13 | 中国科学院地质与地球物理研究所兰州油气资源研究中心 | Deep Basin reservoir rock and fluid interaction simulator and application method |
| CN110091534A (en) * | 2018-01-31 | 2019-08-06 | 会田工程技术有限公司 | Pressure system |
| CN110065141A (en) * | 2019-04-17 | 2019-07-30 | 王君国 | A kind of working principle of bidirectional hydraulic press |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117282826A (en) * | 2023-09-19 | 2023-12-26 | 苏州骏恩电子科技有限公司 | Stamping equipment capable of preventing displacement |
| CN117282826B (en) * | 2023-09-19 | 2024-03-19 | 苏州骏恩电子科技有限公司 | Stamping equipment capable of preventing displacement |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200619 |
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| WW01 | Invention patent application withdrawn after publication |