CN104438409B - Pipe fitting cold extruding forming machine and forming technology thereof - Google Patents
Pipe fitting cold extruding forming machine and forming technology thereof Download PDFInfo
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- CN104438409B CN104438409B CN201510006917.7A CN201510006917A CN104438409B CN 104438409 B CN104438409 B CN 104438409B CN 201510006917 A CN201510006917 A CN 201510006917A CN 104438409 B CN104438409 B CN 104438409B
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Abstract
The invention belongs to the technical field of pipe fitting processing, and relates to a pipe fitting cold extruding forming machine and a forming technology of the pipe fitting cold extruding forming machine. The forming machine comprises a frame, a mold locking oil cylinder, an ejection oil cylinder, pushing oil cylinders and auxiliary oil cylinders, and the mold locking oil cylinder, the ejection oil cylinder, the pushing oil cylinders and the auxiliary oil cylinders are arranged in the frame. A through work platform is arranged in the middle of the frame, the ejection oil cylinder is arranged at the position, below the work platform, in the frame, the mold locking oil cylinder is arranged at the position, corresponding to the position above the work platform, in the frame, the pushing oil cylinders are arranged at the positions, on the two sides of the work platform, in the frame respectively, and the auxiliary oil cylinders are arranged on the mold locking oil cylinder and the pushing oil cylinders respectively. In the work process, a lower workpiece mold is placed on the work platform, the mold locking oil cylinder is connected with an upper workpiece mold, the two pushing oil cylinders are connected with water injection devices respectively, the water injection devices are connected with a workpiece in the pushing process, and sealing contact is achieved. A three-way reducing pipe is formed based on the cold extruding technology, operation and forming are easy, environmental protection and high efficiency are achieved, safety is high, and the labor intensity of workers is lowered.
Description
Technical field
The invention belongs to pipe fitting processing technique field, more particularly to a kind of pipe fitting fitting cold extrusion shaping machine and its shaping work
Skill.
Background technology
Existing formation of tubes, typically adopts hot-press forming device, obtains the section tube of needs by the deformation of high temperature hot melt,
A large amount of fuel are wasted, heating typically adopts coke-fired furnace, not only causes environmental pollution, and the working environment of workman in heating process
Difference, dangerous high, accident-proneness.In addition if diameter difference in two ends is too many for reduced pipe, multiple circulating-heating is needed to become
Shape can be molded, because heating for multiple times can make surface of the work form iron oxide and come off, surface of the work has rough place,
Need to polish.Reduced pipe shaping now uses pyrocondensation（Extra heavy pipe becomes tubule）, pyrocondensation is to complete by extruding, is extruding
Cheng Zhong, can produce to outer surface of workpiece when outer surface of workpiece is rubbed with mold and pull, and need to polish, therefore existing forming technique work
People's labour intensity is high, and operation is many, increased the cost of product, and product after polishing unsightly.
Content of the invention
For above-mentioned technical problem, it is an object of the invention to provide a kind of pipe fitting fitting cold extrusion shaping machine and its shaping
Technique, it is by cold-extrusion technology, realizes the shaping of threeway, reduced pipe.
The purpose of the present invention is achieved by the following technical solution：
A kind of present invention pipe fitting fitting cold extrusion shaping machine, the Mode-locking oil cylinder including framework and being placed in framework, ejection cylinder, pushes away
Enter oil cylinder, auxiliary cylinder, described frame mid portion is penetrating workbench, in square bearer under workbench, setting ejection cylinder, right
Answer setting Mode-locking oil cylinder in top frame, in workbench two body side frame, be respectively provided with propelling cylinder, Mode-locking oil cylinder and propulsion oil
Cylinder is respectively equipped with auxiliary cylinder, during work, places mould under workpiece on workbench, and Mode-locking oil cylinder connects mould on workpiece
Tool, two propelling cylinders connects water filling device respectively, water filling device is connected with workpiece respectively in progradation, in sealing contact.
Further, the first auxiliary cylinder at least two of described Mode-locking oil cylinder, is arranged along its even circumferential, each first
The piston of auxiliary cylinder and Mode-locking oil cylinder passes through the first connector and connects.
Further, on said frame contact-making switch is set close to mode locking cylinder downward storke final position, in mode locking cylinder
And first the in-line of auxiliary cylinder be provided with electro connecting pressure gauge, electro connecting pressure gauge passes through mode locking cylinder and the first auxiliary oil
Solenoid directional control valve on cylinder in-line connects power supply.
Further, the second auxiliary cylinder at least two of each propelling cylinder described, is arranged along its even circumferential, respectively
The piston of the second auxiliary cylinder and propelling cylinder passes through the second connector and connects, and the second connector is connect with the slide rail on workbench
Touch.
Further, described water filling device includes sleeve, water pump and pipeline, and described sleeve is a ladder bushing, outside one end
Footpath end face is coordinated with workpiece end face, and the other end connects the piston rod of propelling cylinder, has waterway channel thereon, waterway channel passes through
Pipeline connects water pump, and pipeline is provided with water valve and relief valve.
Further, in described framework, corresponding two propelling cylinder propelling strokes arrange limit switches.
Further, described framework has multiple fabrication holes.
Further, the pipeline that described Mode-locking oil cylinder and propelling cylinder are connected with fuel tank is provided with non-return valve.
The moulding process of forming machine of the present invention, comprises the steps：
The first step：Mould under workpiece to be added is placed on workbench in framework, the first of Mode-locking oil cylinder tailpiece of the piston rod
Workpiece mold to be added is connected on connector, and workpiece to be processed is placed on mould under workpiece；
Second step：Start Mode-locking oil cylinder and its first auxiliary cylinder is descending, make mold and lower mould matched moulds；
3rd step：Start both sides propelling cylinder and its second auxiliary cylinder, make the sleeve of water filling device enter workpiece both sides,
Contact with workpiece end face, in sealing state；
4th step：Start water pump, open pipe valve, the water filling into workpiece, when reaching predetermined pressure, water pump stops work
Make；
5th step：Start the second auxiliary cylinder of both sides propelling cylinder, drive both sides propelling cylinder extruding workpiece deformation, become
During shape, hydraulic pressure raises, when exceeding predetermined pressure, by relief valve releasing pressure automatically；The piston of both sides propelling cylinder touches spacing
Switch, quits work；
6th step：Workpiece shaping terminates, and the second auxiliary cylinder drives both sides propelling cylinder backhaul；
7th step：First auxiliary cylinder drives Mode-locking oil cylinder backhaul, die sinking；
8th step：Ejection cylinder works, the workpiece after ejection shaping.
It is an advantage of the invention that：
1. the present invention passes through cold-extrusion technology, realizes the shaping of threeway, reduced pipe, simple to operate, is easily molded, environmental protection,
Safe, labor strength reduces, and production efficiency is high.
2. the shaping of reduced pipe is to become extra heavy pipe by tubule using technique, and surface of the work does not have the vestige pulled, and product becomes
Type is attractive in appearance.
3. diameter difference in reduced pipe two ends is many can also be completed by singlepass, simplify technique.
4. have multiple fabrication holes on framework of the present invention, be not only convenient for welding, install, and mitigate weight, prevent from deforming, increase
Plus mechanical elasticity.
5. the setting of auxiliary cylinder of the present invention, enables Mode-locking oil cylinder and propelling cylinder quickly to put in place, and plays backhaul to help
Power acts on, and is easy to Mode-locking oil cylinder pressing mold, die sinking and propelling cylinder extrusion molding, backhaul.
Brief description
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the A-A sectional view of Fig. 3.
In figure：1. Mode-locking oil cylinder, 2. the first auxiliary cylinder, 3. framework, 4. the first connector, 5. mold, 6. advance oil
Cylinder, 7. the second auxiliary cylinder, 8. slide rail, 9. play mould, 10. the second connector, 11. fabrication holes, 12. ejection cylinders, 13. work
Platform, 14. water filling devices, 15. waterway channels, 16. sleeves.
Specific embodiment
Describe the present invention with reference to the accompanying drawings and examples.
Embodiment 1：As Figure 1-Figure 4, a kind of pipe fitting of present invention fitting cold extrusion shaping machine, including framework 3 and be placed in framework 3
Interior Mode-locking oil cylinder 1, ejection cylinder 12, propelling cylinder 6, auxiliary cylinder, water filling device, described framework 3 middle part is penetrating work
Platform 13, setting ejection cylinder 12 in 13 times square bearers of workbench 3, setting Mode-locking oil cylinder 1, work in corresponding top frame 3
It is respectively provided with propelling cylinder 6, Mode-locking oil cylinder 1 and propelling cylinder 6 are respectively equipped with auxiliary cylinder, work in 13 liang of body side frames 3 of platform
When, mould 9 under workpiece placed by workbench 13, Mode-locking oil cylinder 1 connects workpiece mold 5, on two propelling cylinders 6 respectively
Connect water filling device 14, water filling device 14 is connected with workpiece respectively in progradation, in sealing contact.
As shown in figure 4, the first auxiliary cylinder 2 at least two of described Mode-locking oil cylinder 1, arrange along its even circumferential, respectively
The piston of the first auxiliary cylinder 2 and Mode-locking oil cylinder 1 connects through the first auxiliary cylinder 2 by the first connector 4 and drives locked mode oil
Cylinder 1 is descending and backhaul.On the frame 3 contact-making switch is set close to mode locking cylinder downward storke final position, in Mode-locking oil cylinder 1 and the
The in-line of one auxiliary cylinder 2 is provided with electro connecting pressure gauge, and electro connecting pressure gauge passes through Mode-locking oil cylinder 1 and the first auxiliary oil
Magnetic valve reversal valve on cylinder 1 in-line connects power supply.
When descending 1 stroke end close to Mode-locking oil cylinder of Mode-locking oil cylinder 1, contact-making switch is installed on the frame 3, when first
Connector 4 touch Mode-locking oil cylinder 1 during switch stop descending, prevention Mode-locking oil cylinder 1 downward storke exceed the stroke of itself, play
The effect of protection Mode-locking oil cylinder 1.
After the mold 5 of workpiece and lower mould 9 matched moulds during normal work, but Mode-locking oil cylinder 1 stops descending oil pump and continues
To Mode-locking oil cylinder 1 and the oil-filled plus-pressure of the first auxiliary cylinder 2, when pressure rise is to preset pressure, oil pump stops to locked mode oil
Cylinder 1 and the first auxiliary cylinder 2 pump oil, when cylinder cavity pressure reaches the preset pressure of electro connecting pressure gauge, electric contact pressure
Table action, disconnects the power supply of the magnetic valve reversal valve of Mode-locking oil cylinder 1 and the first auxiliary cylinder 2 in-line, and reversal valve cuts out, and stops
To oil cylinder fuel feeding, Mode-locking oil cylinder 1 reaches the purpose of high pressure locked mode.
As shown in Figure 1-Figure 3, the second auxiliary cylinder 7 at least two of each propelling cylinder 6 described, along its even circumferential
Setting, the piston of each second auxiliary cylinder 7 and propelling cylinder 6 connects by the second connector 10, the second connector 10 with work
Slide rail 8 on platform 13 connects.By the piston of the second connector 10 drive the second auxiliary cylinder 7 and propelling cylinder 6 along slide rail 8
Slide, complete propelling stroke and backhaul.
As shown in figure 4, described water filling device 14 includes sleeve 16, water pump and pipeline, described sleeve 16 is a ladder bushing,
One end external diameter is coordinated with workpiece end face, and the other end connects the piston rod of propelling cylinder 6, has waterway channel 15 thereon, and water route leads to
Road 15 connects water pump by pipeline, and pipeline is provided with water pressure gauge, water valve and relief valve.Hydraulic pressure liter in workpiece water-filling alternative process
Height, when hydraulic pressure reaches predetermined value, water pump quits work, and two propelling cylinder 6 extrudes workpiece, and in workpiece, space diminishes, and water pressure gauge shows
Show that hydraulic pressure raises, when exceeding predetermined pressure, by the relief valve releasing pressure automatically being connected on water route.
Corresponding two propelling cylinder 6 propelling stroke setting limit switches in described framework 3.
Have multiple fabrication holes 11 on described framework 3, be easy to weld, mitigate weight, prevent from deforming, increase mechanical elasticity.
It is provided with non-return valve on the pipeline that described Mode-locking oil cylinder 1 and propelling cylinder 6 are connected with fuel tank.During backhaul, pass through
Opening non-return valve makes oil be back in fuel tank.
Fuel tank of the present invention is placed in above Mode-locking oil cylinder 1, self-priming oil-filled.Mode-locking oil cylinder 1 top is provided with non-return valve.
The moulding process of pipe fitting fitting cold extrusion shaping machine of the present invention, comprises the steps：
The first step：Mould 9 under workpiece to be added is placed on workbench 13 in framework 3, the of Mode-locking oil cylinder 1 piston end
Workpiece mold 5 to be added is connected on a connection piece 4, and workpiece to be processed is placed on mould 9 under workpiece；
Second step：Start Mode-locking oil cylinder 1 and its first auxiliary cylinder 2 is descending, make mold 5 and lower mould 9 matched moulds；
3rd step：Start both sides propelling cylinder 6 and its second auxiliary cylinder 7, make the sleeve 16 of water filling device 14 enter work
Part two ends, and absorption surface, in sealing state；
4th step：Start water pump, open pipe valve, the water filling into workpiece, when reaching predetermined pressure, water pump stops work
Make；
5th step：Start the second auxiliary cylinder 7 of both sides propelling cylinder 6, drive both sides propelling cylinder 6 to extrude workpiece and become
Shape, in deformation process, hydraulic pressure raises, and exceedes predetermined pressure, by the relief valve releasing pressure automatically on pipeline；Both sides propelling cylinder 6
Piston touches limit switch, quits work；Described limit switch sets according to workpiece to be processed；
6th step：Workpiece shaping terminates, and the second auxiliary cylinder 7 drives both sides propelling cylinder 6 backhaul；
7th step：First auxiliary cylinder 2 drives Mode-locking oil cylinder 1 backhaul, die sinking；
8th step：Ejection cylinder 12 works, the workpiece after ejection shaping.
The present invention at work, if not meeting processing request by the workpiece that the first step processes to the 8th step, does not have
Reach preliminary dimension, can reappose on workbench of the present invention, adjust the limit-switch positions of two propelling cylinders, repeat the
One step is to the 8th step, until it reaches be satisfied with workpiece.
In the present invention, Mode-locking oil cylinder 1 and propelling cylinder 6 process are identical with backhaul operation principle, taking Mode-locking oil cylinder 1 as a example,
During process, respectively to oil-filled descending in Mode-locking oil cylinder 1 and the first auxiliary cylinder 2, because the first auxiliary cylinder 2 is less than Mode-locking oil cylinder
1, oil-filled speed is fast, and its piston rod drives the first connector 4, and then the piston fast downlink of drive Mode-locking oil cylinder 1, in locked mode oil
During 5 times mould 9 matched moulds of the mold on cylinder 1, out of service, continue oil-filled in Mode-locking oil cylinder 1, stop after reaching the pressure of setting
Oil-filled, continue oil-filled in propelling cylinder 6 oil cylinder, extruding workpiece deformation；When end-of-job needs backhaul, open Mode-locking oil cylinder 1
Non-return valve, by the oil-filled backhaul of the first auxiliary cylinder 2, the oil in Mode-locking oil cylinder 1 is back in fuel tank, by the first auxiliary cylinder 2
Drive Mode-locking oil cylinder 1 backhaul.
Embodiment 2：This example is as different from Example 1：This example is placed multiple on the workbench 13 in framework 3 simultaneously
Mould, one Mode-locking oil cylinder 1 of setting and two the first auxiliary cylinders 2, correspond to two propelling cylinders of each workpiece setting 6 and 4
Second auxiliary cylinder 7, extrusion molding simultaneously.Improve operating efficiency.
Claims (2)
1. a kind of pipe fitting fitting cold extrusion shaping machine it is characterised in that：Including framework and be placed in Mode-locking oil cylinder in framework, ejection oil
Cylinder, propelling cylinder, auxiliary cylinder, described frame mid portion is penetrating workbench, setting ejection oil in square bearer under workbench
Cylinder, setting Mode-locking oil cylinder in corresponding top frame, it is respectively provided with propelling cylinder in workbench two body side frame, Mode-locking oil cylinder and pushing away
Enter oil cylinder and be respectively equipped with auxiliary cylinder, during work, mould under workpiece placed by workbench, Mode-locking oil cylinder connects on workpiece
Mould, two propelling cylinders connects water filling device respectively, water filling device is connected with workpiece respectively in progradation, sealing connects
Touch；First auxiliary cylinder at least two of described Mode-locking oil cylinder, along the setting of its even circumferential, each first auxiliary cylinder and locked mode
The piston of oil cylinder passes through the first connector and connects；Open close to the setting contact of mode locking cylinder downward storke final position on said frame
Close, electro connecting pressure gauge is provided with the in-line of mode locking cylinder and the first auxiliary cylinder, electro connecting pressure gauge passes through mode locking cylinder
And first the solenoid directional control valve on auxiliary cylinder in-line connect power supply；Second auxiliary cylinder of each propelling cylinder described is at least
For two, along the setting of its even circumferential, the piston of each second auxiliary cylinder and propelling cylinder passes through the second connector and connects, and second
Connector is contacted with the slide rail on workbench；Described water filling device includes sleeve, water pump and pipeline, and described sleeve is a ladder
Sleeve, one end outer-diameter end face is coordinated with workpiece end face, and the other end connects the piston rod of propelling cylinder, has waterway channel thereon,
Waterway channel connects water pump by pipeline, and pipeline is provided with water valve and relief valve；In described framework, corresponding two propelling cylinders push away
Enter stroke and be provided with limit switch；Multiple fabrication holes are had on described framework；Described Mode-locking oil cylinder and propelling cylinder are with fuel tank even
It is provided with non-return valve on the pipeline connecing.
2. a kind of moulding process of pipe fitting fitting cold extrusion shaping machine as claimed in claim 1 it is characterised in that：Comprise the steps：
The first step：Mould under workpiece to be added is placed on workbench in framework, in the first connection of Mode-locking oil cylinder tailpiece of the piston rod
Workpiece mold to be added is connected on part, and workpiece to be processed is placed on mould under workpiece；
Second step：Start Mode-locking oil cylinder and its first auxiliary cylinder is descending, make mold and lower mould matched moulds；
3rd step：Start both sides propelling cylinder and its second auxiliary cylinder, make the sleeve of water filling device enter workpiece both sides, and work
Part end contact, in sealing state；
4th step：Start water pump, open pipe valve, the water filling into workpiece, when reaching predetermined pressure, water pump quits work；
5th step：Start the second auxiliary cylinder of both sides propelling cylinder, drive both sides propelling cylinder extruding workpiece deformation, deformed
In journey, hydraulic pressure raises, when exceeding predetermined pressure, by relief valve releasing pressure automatically；The piston of both sides propelling cylinder touches spacing opening
Close, quit work；
6th step：Workpiece shaping terminates, and the second auxiliary cylinder drives both sides propelling cylinder backhaul；
7th step：First auxiliary cylinder drives Mode-locking oil cylinder backhaul, die sinking；
8th step：Ejection cylinder works, the workpiece after ejection shaping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006917.7A CN104438409B (en) | 2015-01-07 | 2015-01-07 | Pipe fitting cold extruding forming machine and forming technology thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510006917.7A CN104438409B (en) | 2015-01-07 | 2015-01-07 | Pipe fitting cold extruding forming machine and forming technology thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104438409A CN104438409A (en) | 2015-03-25 |
| CN104438409B true CN104438409B (en) | 2017-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510006917.7A Active CN104438409B (en) | 2015-01-07 | 2015-01-07 | Pipe fitting cold extruding forming machine and forming technology thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928509A (en) * | 1987-07-29 | 1990-05-29 | Mitsui & Co., Ltd. | Method for manufacturing a pipe with projections |
| CN1060615A (en) * | 1990-10-20 | 1992-04-29 | 东北重型机械学院秦皇岛分校 | Multiple way union mould extrusion forming technology and mould |
| CN2212463Y (en) * | 1994-08-26 | 1995-11-15 | 机械工业部西安重型机械研究所 | Expanding hydraulic press |
| CN1131588A (en) * | 1995-12-11 | 1996-09-25 | 华中理工大学 | Mold-extruding, expanding and forming process for multi-way pipe and its die equipment |
| CN2484171Y (en) * | 2001-06-09 | 2002-04-03 | 方国权 | Three-way pipe hydraulic forming machine |
| CN202028627U (en) * | 2011-04-21 | 2011-11-09 | 湖州机床厂有限公司 | Three-way pipe extrusion molding device |
| CN204381091U (en) * | 2015-01-07 | 2015-06-10 | 营口昌信管业制造有限公司 | Pipe fitting fitting cold extrusion shaping machine |
-
2015
- 2015-01-07 CN CN201510006917.7A patent/CN104438409B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4928509A (en) * | 1987-07-29 | 1990-05-29 | Mitsui & Co., Ltd. | Method for manufacturing a pipe with projections |
| CN1060615A (en) * | 1990-10-20 | 1992-04-29 | 东北重型机械学院秦皇岛分校 | Multiple way union mould extrusion forming technology and mould |
| CN2212463Y (en) * | 1994-08-26 | 1995-11-15 | 机械工业部西安重型机械研究所 | Expanding hydraulic press |
| CN1131588A (en) * | 1995-12-11 | 1996-09-25 | 华中理工大学 | Mold-extruding, expanding and forming process for multi-way pipe and its die equipment |
| CN2484171Y (en) * | 2001-06-09 | 2002-04-03 | 方国权 | Three-way pipe hydraulic forming machine |
| CN202028627U (en) * | 2011-04-21 | 2011-11-09 | 湖州机床厂有限公司 | Three-way pipe extrusion molding device |
| CN204381091U (en) * | 2015-01-07 | 2015-06-10 | 营口昌信管业制造有限公司 | Pipe fitting fitting cold extrusion shaping machine |
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| Publication number | Publication date |
|---|---|
| CN104438409A (en) | 2015-03-25 |
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