CN106926511B - The protection of mechanical press electromechanical overload and stretching device and method - Google Patents
The protection of mechanical press electromechanical overload and stretching device and method Download PDFInfo
- Publication number
- CN106926511B CN106926511B CN201710331032.3A CN201710331032A CN106926511B CN 106926511 B CN106926511 B CN 106926511B CN 201710331032 A CN201710331032 A CN 201710331032A CN 106926511 B CN106926511 B CN 106926511B
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- press
- connecting rod
- guide rod
- blind hole
- press connecting
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- 238000000034 method Methods 0.000 title claims description 9
- 238000004080 punching Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 5
- 238000005242 forging Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 abstract description 12
- 230000001681 protective effect Effects 0.000 abstract description 10
- 230000008439 repair process Effects 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007774 longterm Effects 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 230000001012 protector Effects 0.000 description 13
- 210000004907 gland Anatomy 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000012797 qualification Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
A kind of mechanical press electromechanical overload protection and stretching device; including the press connecting rod being vertically arranged; it is equipped with a blind hole vertically in the bottom of press connecting rod; it is equipped with a guide rod vertically in the lower section of press connecting rod; one and the matched motion bar of blind hole are equipped at the top of guide rod, motion bar is movably arranged in blind hole.The present invention is using the above structure; no longer overload protection arrangement is arranged in slide body; it carries out no longer needing to remove sliding block equipment during maintenance and repair after long-term use; maintenance and repair is easy to operate; the installation of device is simple, reliable, has many advantages, such as the service life of unique structure, safe and reliable, high efficiency, low cost, environmentally protective, prolonged mechanical forcing press and mold and improves forming quality of products.
Description
Technical field：
The present invention relates to inventions to be related to forging machine tool field, more particularly to a kind of mechanical press electromechanical overload protection and drawing
Stretch device and method.
Background technology：
At present, mechanical press overload protection arrangement is mostly divided into two kinds in the market, and one kind is breaker formula protector dress
It puts, as shown in Fig. 2, including lid, connecting rod, latch segment, ball screw, screw, bulb gland, ball cup, protector, protector pad
The structures such as plate, slide body, clip module, striker plate, pointer, pressing plate, another kind are hydraulic pressure overload protective devices, as shown in figure 3, packet
Include connecting rod, ball screw, union (screwed)bonnet (UB, gland, screw, bulb gland, flat key, worm gear, pin, baffle ring, oil cylinder, bulb piston,
Hydraulic pressure oil meter, hole are sealed with rectangle, slide body, worm screw, the structures such as hydraulic power unit.It is mainly used in the forcing press course of work and overloads
Protection, that is, a kind of relief arrangement when load is more than rated load 100% -110% when working.Simultaneously when forcing press occurred
After load, overload protective device can rapidly resume work forcing press state, find breaker formula protector in actual production
All there is certain defects for device and hydraulic pressure overload protective device.Slight overload metal protector occurs for breaker formula protector not
Certain rupture, and lathe alarm free can work normally, and as forcing press long term overloading works, metal protector fatigue is strong
Degree increase, metal protector are deformed or even rupture, and damaged protector can be theoretically taken out out of slip front grid
It is replaced, often occurs protector deformation in practice and be stuck in sliding block inner cavity and can not pull out, end link and sliding block need to be dismantled,
Maintenance time length, laborious, influence equipment service efficiency are resulted in this way.The hydraulic pressure overload protective that medium-and-large-sized mechanical press uses
Device often occurs leaking in use not according to nominal pressure unloading, and reliability and stability are poor.Generally use passes through
It tests to explore with test method and solve, the reason of wasting time fundamentally find off-load in advance well.Oil pipe, soldering oil
Case and sealing element are possible to because moment pressure is excessive or oil leakage phenomenon occurs in use for a long time, equal to lathe correction maintenance and maintenance
It affects.And the slide body built-in hydraulic cylinder structure of hydraulic pressure overload protective device is complicated, manufacture requirement is high, into
This is higher.
In addition, when the single, double point of open type, enclosed, 4 mechanical press work, under power effect, connecting rod band movable slider
Body downlink, the moment that upper/lower die is closed complete the moldings such as punching press, extruding, die forging, without stretching or soft stretch function.Mould
Tool is closed that moment may cause stamped workpieces there are flash, workpiece surface roughness is poor, stretching is incomplete or because of crushing failure at high speed work
Part causes the qualification rate of workpiece to reduce, very high there are equipment investment cost according to servo-pressing machine, and hydraulic press production effect
The problems such as rate is relatively low.
Invention content：
The present invention provides a kind of protection of mechanical press electromechanical overload and stretching device and method, its reasonable design, tools
There are easy to operate unique structure, safe and reliable, high efficiency, maintenance and repair, inexpensive, environmentally protective, realization soft stretch, extension
The advantages that service life of mechanical press and mold and raising forming quality of products, solve in the prior art ask
Topic.
The used to solve above-mentioned technical problem technical solution of the present invention is：
A kind of mechanical press electromechanical overload protection and stretching device, including the press connecting rod being vertically arranged, in pressure
The bottom of machine connecting rod is equipped with a blind hole vertically, a guide rod is equipped with vertically in the lower section of press connecting rod, at the top of guide rod
Equipped with one and the matched motion bar of blind hole, motion bar is movably arranged in blind hole, between press connecting rod and guide rod
Motion bar outer sheath is connected equipped with butterfly spring, press connecting rod and guide rod by several bolts being vertically arranged, bolt
Top is connect with press connecting bar screw-thread, and shank of bolt activity passes through guide rod, the top of the guide rod below press connecting rod
Equipped with travel switch, travel switch is connected with electrical overloads Protection control system；The bottom of guide rod and the spherical shape being vertically arranged
The top of screw rod is connected, and the bulb of ball screw is connected with slide body.
Adjustable switch bracket is equipped at the top of guide rod, the travel switch is mounted on switch bracket.
A kind of mechanical press electromechanical overload guard method, during forcing press works, press connecting rod, which drives, to be slided
Block moves up and down, and overload sets the compression travel of maximum nominal pressure beyond disk spring, and press connecting rod lower face is moved
Dynamic to touch travel switch, travel switch sends a signal to electrical overloads Protection control system, and electrical overloads Protection control system opens
The dynamic throw-out-of clutch for realizing forcing press, brake engagement, slide body stop downlink, realize that mechanical press electromechanical overload is protected
Shield.
A kind of mechanical press drawing process, during forcing press works, press connecting rod is driven above and below slide body
Back and forth movement connects mold below slide body, and mold is driven to move downward and is closed stamped workpieces, pressure with lower mold
It being set more than disk spring and stretches precompression, disk spring starts to compress, mold continuation reinforcement deceleration downlink, realization punching press,
It squeezes, die-forging forming stretches.
Overload protection arrangement using the above structure, is no longer arranged in slide body, carries out after long-term use by the present invention
It no longer needs to remove sliding block equipment during maintenance and repair, maintenance and repair is easy to operate, and the installation of device is simple, reliable, for manufacture
It is of less demanding, it, will not be to the repair of lathe situations such as reducing the manufacture cost of whole set equipment, be not in oil leak at work
It is impacted with maintenance；In addition, it can be realized during punching press is carried out using the press connecting rod that elastic pre-stress designs
Soft stretch, the edge of work produced is smooth, and surface is smooth, and the qualification rate of workpiece is higher.With unique structure, safety can
It leans on, high efficiency, low cost, the service life of environmentally protective, prolonged mechanical forcing press and mold and improve forming quality of products etc.
Advantage.
Description of the drawings：
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structure diagram of conventional press breaker formula protector device.
Fig. 3 is the structure diagram of conventional press hydraulic pressure overload protective device.
In figure, 1, press connecting rod, 2, blind hole, 3, guide rod, 4, motion bar, 5, butterfly spring, 6, bolt, 7, switch branch
Frame, 8, travel switch, 9, ball screw, 10, spherical mounting groove, 11, bulb gland, 12, union (screwed)bonnet (UB, 13, gland, 14, spiral shell
Nail, 15, worm gear, 16, flat key, 17, pin, 18, worm screw, 19, slide body, 1-1, lid, 1-2, connecting rod, 1-3, latch segment, 1-4, ball
Head screw rod, 1-5, screw, 1-6, bulb gland, 1-7, ball cup, 1-8, protector, 1-9, protector backing plate, 1-10 slide bodies,
1-11, clip module, 1-12, striker plate, 1-13 pointers, 1-14, pressing plate, 2-1, connecting rod, 2-2, ball screw, 2-3, screw thread pressure
Lid, 2-4, gland, 2-5, screw, 2-6, bulb gland, 2-7, flat key, 2-8, worm gear, 2-9, pin, 2-10, baffle ring, 2-11, oil
Cylinder, 2-12, bulb piston, 2-13, hydraulic pressure oil meter, 2-14, hole are sealed with rectangle, 2-15, slide body, 2-16, worm screw, 2-17, liquid
Press pump station.
Specific embodiment：
In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this hair
It is bright to be described in detail.
As shown in fig. 1, a kind of mechanical press electromechanical overload protection and stretching device, including the forcing press being vertically arranged
Connecting rod 1, a blind hole 2 is equipped in the bottom of press connecting rod 1 vertically, and a guide rod is equipped with vertically in the lower section of press connecting rod 1
3, one and 2 matched motion bar 4 of blind hole are equipped at the top of guide rod 3, motion bar 4 is movably arranged in blind hole 2, in pressure
4 outer sheath of motion bar between machine connecting rod 1 and guide rod 3 is equipped with butterfly spring 5, and press connecting rod 1 and guide rod 3 are by several
The bolt 6 being vertically arranged is connected, and the top of bolt 6 is threadedly coupled with press connecting rod 1, and shank of bolt activity passes through guide rod 3,
The top of the guide rod 3 of 1 lower section of press connecting rod is equipped with travel switch 8, travel switch 8 and electrical overloads Protection control system phase
Even；The bottom of guide rod 3 is connected with the top of ball screw 9 being vertically arranged, and the bulb of ball screw 9 is connected with slide body 19
It connects.
Adjustable switch bracket 7 is equipped at the top of guide rod 3, the travel switch 8 is mounted on switch bracket 7.
During forcing press works, press connecting rod 1 drives slide body 19 to move up and down, and overload is beyond dish
Spring 5 sets the compression travel of maximum nominal pressure, and the movement of 1 lower face of press connecting rod touches travel switch 8, and travel switch 8 is sent out
The number of delivering letters give electrical overloads Protection control system, electrical overloads Protection control system start realize forcing press throw-out-of clutch,
Brake engages, and slide body 19 stops downlink, realizes the protection of mechanical press electromechanical overload.
During forcing press works, press connecting rod 1 drives slide body 19 to move up and down, under slide body 19
Face connects mold, and mold is driven to move downward and is closed stamped workpieces with lower mold, and pressure is more than that the setting of disk spring 5 is drawn
Precompression is stretched, disk spring 5 starts to compress, and mold continues reinforcement deceleration downlink, realizes that punching press, extruding, die-forging forming stretch.
Overload protection arrangement, is no longer arranged on by mechanical press electromechanical overload protection using the present invention and stretching device
In slide body 19, carry out no longer needing to remove sliding block equipment during maintenance and repair after long-term use, maintenance and repair is easy to operate, dress
The installation put is simple, reliable, of less demanding for manufacturing, and reduces the manufacture cost of whole set equipment, is not at work
Situations such as oil leak, will not impact the repair and maintenance of lathe；In addition, the press connecting rod designed using elastic pre-stress
1 can realize soft stretch during punching press is carried out, and the edge of work produced is smooth, and surface is smooth, the qualification of workpiece
Rate is higher, has making for unique structure, safe and reliable, high efficiency, low cost, environmentally protective, prolonged mechanical forcing press and mold
The advantages that with the service life and improving forming quality of products.
Above-mentioned specific embodiment cannot function as limiting the scope of the invention, for the technology people of the art
For member, any alternate modification or transformation made to embodiment of the present invention are all fallen in protection scope of the present invention.
Part is not described in detail by the present invention, is the known technology of those skilled in the art of the present technique.
Claims (2)
1. a kind of mechanical press drawing process, it is characterised in that：Forcing press includes the press connecting rod being vertically arranged, in pressure
The bottom of machine connecting rod is equipped with a blind hole vertically, a guide rod is equipped with vertically in the lower section of press connecting rod, at the top of guide rod
Equipped with one and the matched motion bar of blind hole, motion bar is movably arranged in blind hole, between press connecting rod and guide rod
Motion bar outer sheath is connected equipped with butterfly spring, press connecting rod and guide rod by several bolts being vertically arranged, bolt
Top is connect with press connecting bar screw-thread, and shank of bolt activity passes through guide rod, the top of the guide rod below press connecting rod
Equipped with travel switch, travel switch is connected with electrical overloads Protection control system；The bottom of guide rod and the spherical shape being vertically arranged
The top of screw rod is connected, and the bulb of ball screw is connected with slide body；During forcing press works, press connecting rod band
Movable slider body moves up and down, and mold is connected below slide body, and mold is driven to move downward and is closed with lower mold
Stamped workpieces, pressure are more than that disk spring setting stretches precompression, and disk spring starts to compress, and mold continues under reinforcement deceleration
Row realizes that punching press, extruding, die-forging forming stretch.
2. a kind of mechanical press drawing process according to claim 1, it is characterised in that：It is equipped at the top of guide rod
Adjustable switch bracket, the travel switch are mounted on switch bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331032.3A CN106926511B (en) | 2017-05-11 | 2017-05-11 | The protection of mechanical press electromechanical overload and stretching device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710331032.3A CN106926511B (en) | 2017-05-11 | 2017-05-11 | The protection of mechanical press electromechanical overload and stretching device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106926511A CN106926511A (en) | 2017-07-07 |
| CN106926511B true CN106926511B (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710331032.3A Active CN106926511B (en) | 2017-05-11 | 2017-05-11 | The protection of mechanical press electromechanical overload and stretching device and method |
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| CN107718640A (en) * | 2017-10-31 | 2018-02-23 | 容德精机（江苏）机床有限公司 | A kind of closed double-point high-speed fine press |
| CN108380786B (en) * | 2018-04-12 | 2024-01-19 | 青岛理工大学 | Intelligent overload protection device of press and control method |
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| CN109586247B (en) * | 2018-11-20 | 2020-05-05 | 中国航发贵州黎阳航空动力有限公司 | Pressure overload protection device of bearing axial clearance testing machine |
| CN109622851A (en) * | 2019-01-25 | 2019-04-16 | 安徽远都机床股份有限公司 | A kind of open type two point high-performance press slide block structure |
| CN110126344B (en) * | 2019-05-29 | 2019-11-29 | 荣成华东锻压机床股份有限公司 | Mechanical press closed height adjusts electromechanical protection device |
| CN111361200B (en) * | 2019-08-02 | 2021-07-16 | 吴秋华 | Air pressure type ejection die equipment |
| CN113478897B (en) * | 2021-06-22 | 2022-07-08 | 浙江斯特隆科技有限公司 | Implosion type overload protection device and method for press |
| CN114523718A (en) * | 2022-04-25 | 2022-05-24 | 南通东昌锻压机床有限公司 | Alarm device for protecting hydraulic machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106926511A (en) | 2017-07-07 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Qiu Yuliang Inventor after: Jiang Chengjie Inventor after: Xu Lenan Inventor after: Zhou Hongbo Inventor after: Hao Yuqin Inventor after: Ma Wanli Inventor after: Li Jun Inventor after: Liu Wenming Inventor before: Qiu Yuliang Inventor before: Zhou Hongbo Inventor before: Xu Lenan Inventor before: Li Jun Inventor before: Liu Wenming |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Mechanical and electrical overload protection and stretching device and method of mechanical press Effective date of registration: 20201204 Granted publication date: 20180629 Pledgee: Shandong Rongcheng Rural Commercial Bank Co.,Ltd. Pledgor: RONGCHENG HUADONG METAL-FORMING MACHINERY Co.,Ltd. Registration number: Y2020980008863 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211220 Granted publication date: 20180629 Pledgee: Shandong Rongcheng Rural Commercial Bank Co.,Ltd. Pledgor: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Registration number: Y2020980008863 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Electromechanical overload protection and stretching device and method of mechanical press Effective date of registration: 20230207 Granted publication date: 20180629 Pledgee: China Construction Bank Corporation Rongcheng Sub-branch Pledgor: RONGCHENG HUADONG METAL-FORMING MACHINERY CO.,LTD. Registration number: Y2023980032164 |
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