CN105291472A - Hydraulic overload protection structure of press machine - Google Patents
Hydraulic overload protection structure of press machine Download PDFInfo
- Publication number
- CN105291472A CN105291472A CN201510908426.1A CN201510908426A CN105291472A CN 105291472 A CN105291472 A CN 105291472A CN 201510908426 A CN201510908426 A CN 201510908426A CN 105291472 A CN105291472 A CN 105291472A
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- China
- Prior art keywords
- ball
- piston
- oil cylinder
- hydraulic pressure
- forcing press
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B30B15/28—Arrangements for preventing distortion of, or damage to, presses or parts thereof
- B30B15/281—Arrangements for preventing distortion of, or damage to, presses or parts thereof overload limiting devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention discloses a hydraulic overload protection structure of a press machine. The hydraulic overload protection structure of the press machine comprises a sliding block, an oil cylinder and a ball head screw. The hydraulic overload protection structure of the press machine is characterized in that the oil cylinder is arranged in a cavity formed in the sliding block, an opening is formed in the top of the cavity of the sliding block, a piston is arranged in the oil cylinder, a ball-shaped mat making contact with the top face of the piston is arranged at the top of the piston, a ball head gland which is fixed to the sliding block through bolts is arranged above the ball-shaped mat, the ball head portion of the ball head screw is arranged in a ball-shaped cavity formed between the ball-shaped mat and the ball head gland, and a worm wheel is further arranged between the ball-shaped mat and the ball head gland to encase the periphery of the ball head of the ball head screw. According to the hydraulic overload protection structure of the press machine, the spherical surface center of the ball-shaped mat does not interfere with an outer circle of the piston, the position tolerance requirement is low, machining is easier, the service life is prolonged, when the ball-shaped mat is abraded and needs to be replaced, disassembly and assembly of the piston are not needed, maintenance is more convenient and rapid, and the maintenance cost is reduced.
Description
Technical field
The present invention relates to press technologies field, particularly relate to a kind of hydraulic pressure overload protective structure of forcing press.
Background technology
Distance when the clamping mould height of forcing press is crank arrival bottom dead centre between slide block bottom surface and work top, the adjustment of mould banker height overlaps with slide block, connecting rod the screw rod be connected by rotating, and the length changing screw rod realizes.During clamping mould, first the mould banker of forcing press is highly transferred to the shut height being greater than upper/lower die, the clamping mould height retelling forcing press after upper and lower mould is clamping is transferred to the shut height of upper/lower die, just can stamp out qualified part.In use, along with the wearing and tearing of mould, also clamping mould height must be readjusted.Forcing press operationally, ball screw ceaselessly swings, alignment pin is not only easily stuck in breach, causes and regulates difficulty, and the chip that simultaneously also there will be alignment pin wearing and tearing falls between ball screw and ball pad, strengthen the wearing and tearing between moving component, the ball pad of existing forcing press is connected simultaneously with ball screw be again oil cylinder piston, just needs entirety all to change, dismounting difficulty once wearing and tearing, affect production efficiency, maintenance cost is high.
Summary of the invention
The technical assignment of technical problem to be solved by this invention and proposition improves prior art; a kind of hydraulic pressure overload protective structure of forcing press is provided; solve die of press clamping governor motion traditional in current technology easily to wear and tear; and need overall all replacings; dismounting difficulty, the problem that maintenance cost is high.
For solving above technical problem, technical scheme of the present invention is:
A kind of hydraulic pressure overload protective structure of forcing press, comprise slide block, oil cylinder and ball screw, it is characterized in that, described cylinder apparatus is in the cavity that slide block is offered, and the open top of slide block cavity, piston has been inserted in oil cylinder, top land arranges the ball pad contacted with piston-top surface, the top of ball pad is also provided with the bulb gland be bolted on slide block, in the spherical hollow space that the ball head separating device of ball screw is formed between ball pad and bulb gland, the periphery that worm gear encases ball screw bulb is also provided with between ball pad and bulb gland.The hydraulic pressure overload protective structure of forcing press of the present invention adopts the structure of piston and ball pad split; the sphere centre of ball pad and the cylindrical complementation of piston are interfered; position of related features requires low, more easily processes, ball screw can smoothly must be rotated in ball pad; avoid the situation occurring clamping stagnation; reduce wearing and tearing, improve service life, need only need change ball pad when changing in ball pad serious wear; easy accessibility, reduces maintenance cost.
Further, described oil cylinder top arranges cylinder nut by piston closes oil cylinder, and piston is set with sealing ring I, preventing hydraulic oil from revealing causes piston position to sink, thus cause ball pad to sink to further making ball screw to sink to occurring the situation that clamping mould is bad, improve sealing and guarantee the smooth rotation within it of ball pad energy stable support ball screw.
Further, described sealing ring I adopts YX RunddichtringO to improve sealing, support equipment stable operation.
Further, cavity is there is at described piston base and the interior end of oil cylinder, oil cylinder is offered fuel feed hole to be connected with cavity, and device has fixed head on fuel feed hole, sealing ring II is provided with between fixed head and oil cylinder, guarantee that ball pad carries out stable support to ball screw in cavity injection liquid force feed, guarantee the smooth and easy rotation of ball screw.
Further, described sealing ring II is O RunddichtringO, improves sealing, prevents hydraulic oil from revealing.
Further, between described ball pad and slide block, be provided with sealing ring III, improve sealing.
Further, described sealing ring III adopts O RunddichtringO.
Further, described ball pad and the contact surface of piston are plane, guarantee that support force is steady, and the complementation of the cylindrical of the sphere centre of ball pad and piston is interfered, and reduces wearing and tearing, increases the service life.
Further, the bulb part of described ball screw is also provided with trundle, and trundle is inserted in transmission breach corresponding on worm gear, improves transmission stability, guarantees degree of regulation.
Compared with prior art, the invention has the advantages that:
The hydraulic pressure overload protective sealing structure performance of forcing press of the present invention is good; long service life; when ball pad wearing and tearing need to change, piston is without the need to dismounting, and it is more convenient to safeguard; reduce maintenance cost; avoid affecting production efficiency, the sphere centre of ball pad and the cylindrical complementation of piston are interfered, and position of related features requires low; more easily process, increase the service life.
Accompanying drawing explanation
Fig. 1 of the present inventionly faces structural representation.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The hydraulic pressure overload protective structure of a kind of forcing press disclosed in the embodiment of the present invention, structure is simple, easily processes and loads and unloads, good seal performance, long service life, only need change ball pad, reduce maintenance cost after ball pad wearing and tearing.
As shown in Figure 1, a kind of hydraulic pressure overload protective structure of forcing press, comprise slide block 1, oil cylinder 2 and ball screw 13, described oil cylinder 2 device is in the cavity that slide block 1 is offered, and the open top of slide block 1 cavity, piston 3 has been inserted in oil cylinder 2, oil cylinder 2 top arranges cylinder nut 5 and closes in oil cylinder 2 by piston 3, and piston 3 is set with sealing ring I4, sealing ring I4 adopts YX RunddichtringO to improve sealing, prevent hydraulic oil from revealing, piston 3 top arranges the ball pad 6 contacted with piston 3 end face, the cylindrical of ball pad 6 contacts with slide block 1, and and be provided with sealing ring III7 between slide block 1, sealing ring III7 adopts O RunddichtringO, piston 3 and ball pad 6 are two independently parts, and ball pad 6 is plane with the contact surface of piston 3, the sphere centre of ball pad and the cylindrical complementation of piston are interfered, avoid occurring clamping stagnation, reduce wearing and tearing, only ball pad 6 need be changed after ball pad serious wear, and without the need to changing piston 3.The top of ball pad 6 is also provided with bulb gland 10, bulb gland 10 is fixing on the slider 1 by bolt 12, bolt 12 is also provided with elastic washer 11 to prevent from getting loose, in the spherical hollow space that the ball head separating device of ball screw 13 is formed between ball pad 6 and bulb gland 10, the periphery that worm gear 8 encases ball screw 13 bulb is also provided with between ball pad 6 and bulb gland 10, the bulb part of ball screw 13 is also provided with trundle 9, trundle 9 is inserted in transmission breach corresponding on worm gear 8, guarantees that stable transmission is accurate.
There is cavity bottom piston 3 and at the interior end of oil cylinder 2, fuel feed hole offered by oil cylinder 2 and is connected with cavity, and on fuel feed hole, device has fixed head 14, be provided with sealing ring II15 between fixed head 14 and oil cylinder 2, sealing ring II15 is O RunddichtringO.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the hydraulic pressure overload protective structure of a forcing press, comprise slide block (1), oil cylinder (2) and ball screw (13), it is characterized in that, described oil cylinder (2) device is in the cavity that slide block (1) is offered, and the open top of slide block (1) cavity, piston (3) has been inserted in oil cylinder (2), piston (3) top arranges the ball pad (6) contacted with piston (3) end face, the top of ball pad (6) is also provided with the bulb gland (10) be bolted on slide block (1), in the spherical hollow space that the ball head separating device of ball screw (13) is formed between ball pad (6) and bulb gland (10), the periphery that worm gear (8) encases ball screw (13) bulb is also provided with between ball pad (6) and bulb gland (10).
2. the hydraulic pressure overload protective structure of forcing press according to claim 1; it is characterized in that; described oil cylinder (2) top arranges cylinder nut (5) and is closed in oil cylinder (2) by piston (3), and piston (3) is set with sealing ring I (4).
3. the hydraulic pressure overload protective structure of forcing press according to claim 2, is characterized in that, described sealing ring I (4) adopts YX RunddichtringO.
4. the hydraulic pressure overload protective structure of forcing press according to claim 2; it is characterized in that; cavity is there is bottom described piston (3) and at the interior end of oil cylinder (2); fuel feed hole offered by oil cylinder (2) be connected with cavity; and device has fixed head (14) on fuel feed hole, between fixed head (14) and oil cylinder (2), be provided with sealing ring II (15).
5. the hydraulic pressure overload protective structure of forcing press according to claim 4, is characterized in that, described sealing ring II (15) is O RunddichtringO.
6. the hydraulic pressure overload protective structure of forcing press according to claim 1, is characterized in that, is provided with sealing ring III (7) between described ball pad (6) and slide block (1).
7. the hydraulic pressure overload protective structure of forcing press according to claim 6, is characterized in that, described sealing ring III (7) adopts O RunddichtringO.
8. the hydraulic pressure overload protective structure of forcing press according to claim 1, is characterized in that, described ball pad (6) is plane with the contact surface of piston (3).
9. the hydraulic pressure overload protective structure of forcing press according to claim 1; it is characterized in that; the bulb part of described ball screw (13) is also provided with trundle (9), and trundle (9) is inserted in the upper corresponding transmission breach of worm gear (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908426.1A CN105291472A (en) | 2015-12-09 | 2015-12-09 | Hydraulic overload protection structure of press machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510908426.1A CN105291472A (en) | 2015-12-09 | 2015-12-09 | Hydraulic overload protection structure of press machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105291472A true CN105291472A (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510908426.1A Pending CN105291472A (en) | 2015-12-09 | 2015-12-09 | Hydraulic overload protection structure of press machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN105291472A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515082A (en) * | 2016-12-11 | 2017-03-22 | 安徽海拓志永智能装备股份有限公司 | Overload protection device for novel press |
| CN106739132A (en) * | 2016-12-11 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | A kind of pressure machine overloading protection device |
| CN106956464A (en) * | 2017-05-22 | 2017-07-18 | 四川瑞丰锻造有限公司 | A kind of overload protection arrangement of forging press |
| CN108856618A (en) * | 2018-07-06 | 2018-11-23 | 青岛理工大学 | Crank press Intelligent energy-saving overload protection arrangement and overload protection method |
| CN110529454A (en) * | 2019-09-05 | 2019-12-03 | 厦门莱慧贸易有限公司 | A kind of hydraulic stem with overload protection hydraulic oil |
| CN113478897A (en) * | 2021-06-22 | 2021-10-08 | 浙江斯特隆科技有限公司 | Implosion type overload protection device and method for press |
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| JPS4858468A (en) * | 1971-11-10 | 1973-08-16 | ||
| JPS63137599A (en) * | 1986-11-29 | 1988-06-09 | Amada Co Ltd | Press machine |
| CN2875786Y (en) * | 2006-01-05 | 2007-03-07 | 威思威璐精机(上海)有限公司 | Protective device for gas liquid overload |
| CN200995491Y (en) * | 2007-01-25 | 2007-12-26 | 广东锻压机床厂有限公司 | Moulding-height adjusting and overloading releaser of press |
| CN201082585Y (en) * | 2007-07-25 | 2008-07-09 | 江苏扬力集团有限公司 | Hydraulic pressure excess load type press slide excess load jar structure |
| CN201086426Y (en) * | 2007-07-29 | 2008-07-16 | 广东锻压机床厂有限公司 | Sliding block discharge mechanism of press |
| CN201120740Y (en) * | 2007-11-09 | 2008-09-24 | 扬州锻压机床集团有限公司 | Overcurrent protection oil cylinder of a press |
| CN201665027U (en) * | 2010-04-02 | 2010-12-08 | 扬州锻压机床集团有限公司 | Overload protection device of press machine |
| CN104669657A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Press machine |
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2015
- 2015-12-09 CN CN201510908426.1A patent/CN105291472A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4858468A (en) * | 1971-11-10 | 1973-08-16 | ||
| JPS63137599A (en) * | 1986-11-29 | 1988-06-09 | Amada Co Ltd | Press machine |
| CN2875786Y (en) * | 2006-01-05 | 2007-03-07 | 威思威璐精机(上海)有限公司 | Protective device for gas liquid overload |
| CN200995491Y (en) * | 2007-01-25 | 2007-12-26 | 广东锻压机床厂有限公司 | Moulding-height adjusting and overloading releaser of press |
| CN201082585Y (en) * | 2007-07-25 | 2008-07-09 | 江苏扬力集团有限公司 | Hydraulic pressure excess load type press slide excess load jar structure |
| CN201086426Y (en) * | 2007-07-29 | 2008-07-16 | 广东锻压机床厂有限公司 | Sliding block discharge mechanism of press |
| CN201120740Y (en) * | 2007-11-09 | 2008-09-24 | 扬州锻压机床集团有限公司 | Overcurrent protection oil cylinder of a press |
| CN201665027U (en) * | 2010-04-02 | 2010-12-08 | 扬州锻压机床集团有限公司 | Overload protection device of press machine |
| CN104669657A (en) * | 2015-02-03 | 2015-06-03 | 宁波郎泰机械有限公司 | Press machine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106515082A (en) * | 2016-12-11 | 2017-03-22 | 安徽海拓志永智能装备股份有限公司 | Overload protection device for novel press |
| CN106739132A (en) * | 2016-12-11 | 2017-05-31 | 安徽海拓志永智能装备股份有限公司 | A kind of pressure machine overloading protection device |
| CN106956464A (en) * | 2017-05-22 | 2017-07-18 | 四川瑞丰锻造有限公司 | A kind of overload protection arrangement of forging press |
| CN108856618A (en) * | 2018-07-06 | 2018-11-23 | 青岛理工大学 | Crank press Intelligent energy-saving overload protection arrangement and overload protection method |
| CN108856618B (en) * | 2018-07-06 | 2023-08-11 | 青岛理工大学 | Intelligent energy-saving overload protection device and overload protection method for crank press |
| CN110529454A (en) * | 2019-09-05 | 2019-12-03 | 厦门莱慧贸易有限公司 | A kind of hydraulic stem with overload protection hydraulic oil |
| CN113478897A (en) * | 2021-06-22 | 2021-10-08 | 浙江斯特隆科技有限公司 | Implosion type overload protection device and method for press |
| WO2022267214A1 (en) * | 2021-06-22 | 2022-12-29 | 浙江斯特隆科技有限公司 | Implosion type overload protection device and method for machine press |
| TWI819366B (en) * | 2021-06-22 | 2023-10-21 | 大陸商浙江斯特隆科技有限公司 | Implosion overload protection device for presses |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |
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| RJ01 | Rejection of invention patent application after publication |