CN104438409A - 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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- CN104438409A CN104438409A CN201510006917.7A CN201510006917A CN104438409A CN 104438409 A CN104438409 A CN 104438409A CN 201510006917 A CN201510006917 A CN 201510006917A CN 104438409 A CN104438409 A CN 104438409A
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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, particularly relate to a kind of pipe fitting fitting cold extrusion shaping machine and moulding process thereof.
Background technology
Existing formation of tubes, generally adopts hot-press forming device, is obtained the section tube needed by the distortion of high temperature hot melt, waste a large amount of fuel in heating process, heating generally adopts coke-fired furnace, not only causes environmental pollution, and the poor working environment of workman, dangerous high, accident-proneness.If in addition with regard to reduced pipe two ends different diameters too much, needing repeatedly circulating-heating to be out of shape can be shaping because heating for multiple times can make surface of the work form iron oxide coming off, surface of the work has rough place, needs polishing.The shaping employing of present reduced pipe be pyrocondensation (extra heavy pipe attenuate pipe), pyrocondensation has been come by extruding, in extrusion process, can produce outer surface of workpiece when outer surface of workpiece and mold rub and pull, need polishing, therefore existing forming technique labor strength is high, and operation is many, add the cost of product, and product through polishing after unsightly.
Summary of the invention
For the technical problem of above-mentioned existence, the object of this invention is to provide a kind of pipe fitting fitting cold extrusion shaping machine and moulding process thereof, it is by cold-extrusion technology, realize threeway, reduced pipe shaping.
The object of the invention is to be achieved through the following technical solutions:
A kind of pipe fitting fitting cold extrusion shaping machine of the present invention, comprise framework and be placed in the Mode-locking oil cylinder in framework, ejection cylinder, propelling cylinder, auxiliary cylinder, described frame mid portion is penetrating workbench, under workbench, in square bearer, ejection cylinder is set, in corresponding top frame, Mode-locking oil cylinder is set, in workbench two body side frame, propelling cylinder is set respectively, Mode-locking oil cylinder and propelling cylinder are respectively equipped with auxiliary cylinder, during work, place work piece bed die on workbench, Mode-locking oil cylinder connects workpiece mold, two propelling cylinders connect water filling device respectively, in progradation, water filling device is connected with workpiece respectively, sealing contact.
Further, the first auxiliary cylinder of described Mode-locking oil cylinder is at least two, arranges along its even circumferential, and each first auxiliary cylinder is connected by the first connector with the piston of Mode-locking oil cylinder.
Further, on said frame contact-making switch is set close to mode locking cylinder downward storke final position, the in-line of mode locking cylinder and the first auxiliary cylinder is provided with electro connecting pressure gauge, and electro connecting pressure gauge connects power supply by the solenoid directional control valve on mode locking cylinder and the first auxiliary cylinder in-line.
Further, the second auxiliary cylinder of described each propelling cylinder is at least two, arranges along its even circumferential, and each second auxiliary cylinder is connected by the second connector with the piston of propelling cylinder, and the second connector contacts with the slide rail on workbench.
Further, described water filling device comprises sleeve, water pump and pipeline, described sleeve is a ladder bushing, one end outer-diameter end face coordinates with workpiece end face, the other end connects the piston rod of propelling cylinder, it has waterway channel, and waterway channel connects water pump by pipeline, and pipeline is provided with water valve and relief valve.
Further, in described framework, corresponding two propelling cylinder propelling strokes are provided with limit switch.
Further, described framework has multiple fabrication hole.
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: workbench is placed workpiece bed die to be added in framework, the first connector of Mode-locking oil cylinder tailpiece of the piston rod connects workpiece mold to be added, and place workpiece to be processed on workpiece bed die;
Second step: start Mode-locking oil cylinder and the first auxiliary cylinder descending, make mold and bed die matched moulds;
3rd step: start both sides propelling cylinder and the second auxiliary cylinder thereof, 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, water filling in workpiece, when reaching predetermined pressure, water pump quits work;
5th step: the second auxiliary cylinder starting both sides propelling cylinder, drive both sides propelling cylinder extruding workpiece deformation, in deformation process, hydraulic pressure raises, when exceeding predetermined pressure, by relief valve releasing pressure automatically; The piston of both sides propelling cylinder touches limit switch, quits work;
6th step: Workpiece shaping terminates, the second auxiliary cylinder drives both sides propelling cylinder backhaul;
7th step: the first auxiliary cylinder drives Mode-locking oil cylinder backhaul, die sinking;
8th step: ejection cylinder work, eject shaping after workpiece.
Advantage of the present invention is:
1. the present invention is by cold-extrusion technology, realize threeway, reduced pipe shaping, simple to operate, easily shaping, environmental protection, security is high, and labor strength reduces, and production efficiency is high.
2. the shaping employing technique of reduced pipe is that surface of the work does not have the vestige pulled, and formed product is attractive in appearance by tubule thicker pipe.
3. reduced pipe two ends different diameters is many also can have been come by an operation, simplifies technique.
4. framework of the present invention has multiple fabrication hole, be not only convenient to welding, install, and weight reduction, prevent distortion, increase mechanical elasticity.
5. the setting of auxiliary cylinder of the present invention, enables Mode-locking oil cylinder and propelling cylinder put in place fast, and plays the effect of backhaul power-assisted, is convenient to that Mode-locking oil cylinder pressing mold, die sinking and propelling cylinder are extruded, backhaul.
Accompanying drawing explanation
Fig. 1 is 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. propelling cylinder, 7. the second auxiliary cylinder, 8. slide rail, 9. bed die, 10. the second connector, 11. fabrication holes, 12. ejection cylinders, 13. workbenches, 14. water filling devices, 15. waterway channels, 16. sleeves.
Detailed description of the invention
Describe the present invention below in conjunction with drawings and Examples.
Embodiment 1: as Figure 1-Figure 4, a kind of pipe fitting fitting cold extrusion shaping machine of the present invention, comprise framework 3 and be placed in the Mode-locking oil cylinder 1 in framework 3, ejection cylinder 12, propelling cylinder 6, auxiliary cylinder, water filling device, it is penetrating workbench 13 in the middle part of described framework 3, in workbench 13 times square bearers 3, ejection cylinder 12 is set, in corresponding top frame 3, Mode-locking oil cylinder 1 is set, in workbench 13 liang of body side frames 3, propelling cylinder 6 is set respectively, Mode-locking oil cylinder 1 and propelling cylinder 6 are respectively equipped with auxiliary cylinder, during work, place work piece bed die 9 on workbench 13, Mode-locking oil cylinder 1 connects workpiece mold 5, two propelling cylinders 6 connect water filling device 14 respectively, in progradation, water filling device 14 is connected with workpiece respectively, sealing contact.
As shown in Figure 4, the first auxiliary cylinder 2 of described Mode-locking oil cylinder 1 is at least two, arranges along its even circumferential, and the piston of each first auxiliary cylinder 2 and Mode-locking oil cylinder 1 is connected by the first connector 4 and drives the descending and backhaul of Mode-locking oil cylinder 1 by the first auxiliary cylinder 2.On the frame 3 contact-making switch is set close to mode locking cylinder downward storke final position, the in-line of Mode-locking oil cylinder 1 and the first auxiliary cylinder 2 is provided with electro connecting pressure gauge, and electro connecting pressure gauge connects power supply by the magnetic valve reversal valve on Mode-locking oil cylinder 1 and the first auxiliary cylinder 1 in-line.
Mode-locking oil cylinder 1 descending close to Mode-locking oil cylinder 1 stroke end time; on the frame 3 contact-making switch is installed; when the first connector 4 touches switch, Mode-locking oil cylinder 1 stops descending, and prevention Mode-locking oil cylinder 1 downward storke exceedes stroke own, plays the effect of protection lock mould oil cylinder 1.
During normal work workpiece mold 5 and bed die 9 matched moulds after, but Mode-locking oil cylinder 1 stops descending oil pump to continue to Mode-locking oil cylinder 1 and the oil-filled plus-pressure of the first auxiliary cylinder 2, when pressure is elevated to preset pressure, oil pump stops to Mode-locking oil cylinder 1 and the first auxiliary cylinder 2 pump oil, when cylinder cavity pressure reaches the preset pressure of electro connecting pressure gauge, electro connecting pressure gauge action, disconnect the power supply of the magnetic valve reversal valve of Mode-locking oil cylinder 1 and the first auxiliary cylinder 2 in-line, reversal valve cuts out, stop to oil cylinder fuel feeding, Mode-locking oil cylinder 1 reaches the object of high pressure locked mode.
As shown in Figure 1-Figure 3, second auxiliary cylinder 7 of described each propelling cylinder 6 is at least two, arrange along its even circumferential, each second auxiliary cylinder 7 is connected by the second connector 10 with the piston of propelling cylinder 6, and the second connector 10 is connected with the slide rail 8 on workbench 13.Drive the piston of the second auxiliary cylinder 7 and propelling cylinder 6 to slide along slide rail 8 by the second connector 10, complete propelling stroke and backhaul.
As shown in Figure 4, described water filling device 14 comprises sleeve 16, water pump and pipeline, described sleeve 16 is a ladder bushing, one end external diameter coordinates with workpiece end face, the other end connects the piston rod of propelling cylinder 6, it has waterway channel 15, waterway channel 15 connects water pump by pipeline, and pipeline is provided with water pressure gauge, water valve and relief valve.In workpiece water-filling alternative process, hydraulic pressure raises, and when hydraulic pressure reaches predetermined value, water pump quits work, two propelling cylinders 6 extrude workpiece, and in workpiece, space diminishes, and water pressure gauge display hydraulic pressure raises, when exceeding predetermined pressure, by being connected to the relief valve releasing pressure automatically on water route.
In described framework 3, corresponding two propelling cylinder 6 propelling strokes are provided with limit switch.
Described framework 3 has multiple fabrication hole 11, is convenient to welding, weight reduction, prevent distortion, increase mechanical elasticity.
The pipeline that described Mode-locking oil cylinder 1 and propelling cylinder 6 are connected with fuel tank is provided with non-return valve.During backhaul, by opening non-return valve, oil is 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: workbench 13 is placed workpiece bed die 9 to be added in framework 3, the first connector 4 of Mode-locking oil cylinder 1 piston end connects workpiece mold 5 to be added, and place workpiece to be processed on workpiece bed die 9;
Second step: start Mode-locking oil cylinder 1 and the first auxiliary cylinder 2 descending, make mold 5 and bed die 9 matched moulds;
3rd step: start both sides propelling cylinder 6 and the second auxiliary cylinder 7 thereof, make the sleeve 16 of water filling device 14 enter workpiece two ends, and absorption surface, in sealing state;
4th step: start water pump, open pipe valve, water filling in workpiece, when reaching predetermined pressure, water pump quits work;
5th step: the second auxiliary cylinder 7 starting both sides propelling cylinder 6, drive both sides propelling cylinder 6 to extrude workpiece deformation, in deformation process, hydraulic pressure raises, and exceedes predetermined pressure, by the relief valve releasing pressure automatically on pipeline; The piston of both sides propelling cylinder 6 touches limit switch, quits work; Described limit switch sets according to workpiece to be processed;
6th step: Workpiece shaping terminates, the second auxiliary cylinder 7 drives both sides propelling cylinder 6 backhaul;
7th step: the first auxiliary cylinder 2 drives Mode-locking oil cylinder 1 backhaul, die sinking;
8th step: ejection cylinder 12 works, eject shaping after workpiece.
The present invention at work, if the workpiece processed to the 8th step by the first step does not meet processing request, does not reach preliminary dimension, can reappose on workbench of the present invention, regulate the limit-switch positions of two propelling cylinders, repeat the first step to the 8th step, be satisfied with workpiece until reach.
In the present invention Mode-locking oil cylinder 1 and propelling cylinder 6 process identical with backhaul operation principle, for Mode-locking oil cylinder 1, when 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, its piston rod drives the first connector 4, and then drive the piston fast downlink of Mode-locking oil cylinder 1, during mold 5 bed die 9 matched moulds on Mode-locking oil cylinder 1, out of service, continue oil-filled in Mode-locking oil cylinder 1, stop oil-filled after reaching the pressure of setting, continue oil-filled in propelling cylinder 6 oil cylinder, extruding workpiece deformation, when end-of-job needs backhaul, open the non-return valve of Mode-locking oil cylinder 1, by the oil-filled backhaul of the first auxiliary cylinder 2, the oil in Mode-locking oil cylinder 1 is back in fuel tank, drives Mode-locking oil cylinder 1 backhaul by the first auxiliary cylinder 2.
Embodiment 2: this example as different from Example 1: multiple mould placed by the workbench 13 of this example in framework 3 simultaneously, a Mode-locking oil cylinder 1 and two the first auxiliary cylinders 2 are set, corresponding each workpiece setting two propelling cylinders 6 and 4 the second auxiliary cylinders 7, simultaneously extruded.Increase work efficiency.
Claims (9)
1. a pipe fitting fitting cold extrusion shaping machine, it is characterized in that: comprise framework and be placed in the Mode-locking oil cylinder in framework, ejection cylinder, propelling cylinder, auxiliary cylinder, described frame mid portion is penetrating workbench, under workbench, in square bearer, ejection cylinder is set, in corresponding top frame, Mode-locking oil cylinder is set, in workbench two body side frame, propelling cylinder is set respectively, Mode-locking oil cylinder and propelling cylinder are respectively equipped with auxiliary cylinder, during work, place work piece bed die on workbench, Mode-locking oil cylinder connects workpiece mold, two propelling cylinders connect water filling device respectively, in progradation, water filling device is connected with workpiece respectively, sealing contact.
2. pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, it is characterized in that: the first auxiliary cylinder of described Mode-locking oil cylinder is at least two, arranges along its even circumferential, each first auxiliary cylinder is connected by the first connector with the piston of Mode-locking oil cylinder.
3. pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, it is characterized in that: on said frame contact-making switch is set close to mode locking cylinder downward storke final position, the in-line of mode locking cylinder and the first auxiliary cylinder is provided with electro connecting pressure gauge, and electro connecting pressure gauge connects power supply by the solenoid directional control valve on mode locking cylinder and the first auxiliary cylinder in-line.
4. pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, it is characterized in that: the second auxiliary cylinder of described each propelling cylinder is at least two, arrange along its even circumferential, each second auxiliary cylinder is connected by the second connector with the piston of propelling cylinder, and the second connector contacts with the slide rail on workbench.
5. pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, it is characterized in that: described water filling device comprises sleeve, water pump and pipeline, described sleeve is a ladder bushing, one end outer-diameter end face coordinates with workpiece end face, the other end connects the piston rod of propelling cylinder, it has waterway channel, and waterway channel connects water pump by pipeline, and pipeline is provided with water valve and relief valve.
6. pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, is characterized in that: in described framework, corresponding two propelling cylinder propelling strokes are provided with limit switch.
7. pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, is characterized in that: described framework has multiple fabrication hole.
8. pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, is characterized in that: the pipeline that described Mode-locking oil cylinder and propelling cylinder are connected with fuel tank is provided with non-return valve.
9. a moulding process for pipe fitting fitting cold extrusion shaping machine as claimed in claim 1, is characterized in that: comprise the steps:
The first step: workbench is placed workpiece bed die to be added in framework, the first connector of Mode-locking oil cylinder tailpiece of the piston rod connects workpiece mold to be added, and place workpiece to be processed on workpiece bed die;
Second step: start Mode-locking oil cylinder and the first auxiliary cylinder descending, make mold and bed die matched moulds;
3rd step: start both sides propelling cylinder and the second auxiliary cylinder thereof, 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, water filling in workpiece, when reaching predetermined pressure, water pump quits work;
5th step: the second auxiliary cylinder starting both sides propelling cylinder, drive both sides propelling cylinder extruding workpiece deformation, in deformation process, hydraulic pressure raises, when exceeding predetermined pressure, by relief valve releasing pressure automatically; The piston of both sides propelling cylinder touches limit switch, quits work;
6th step: Workpiece shaping terminates, the second auxiliary cylinder drives both sides propelling cylinder backhaul;
7th step: the first auxiliary cylinder drives Mode-locking oil cylinder backhaul, die sinking;
8th step: ejection cylinder work, eject shaping after workpiece.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510006917.7A CN104438409B (en) | 2015-01-07 | 2015-01-07 | Pipe fitting cold extruding forming machine and forming technology thereof |
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| CN201510006917.7A CN104438409B (en) | 2015-01-07 | 2015-01-07 | Pipe fitting cold extruding forming machine and forming technology thereof |
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| CN104438409A true CN104438409A (en) | 2015-03-25 |
| CN104438409B CN104438409B (en) | 2017-02-22 |
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| US4928509A (en) * | 1987-07-29 | 1990-05-29 | Mitsui & Co., Ltd. | Method for manufacturing a pipe with projections |
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| 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 |
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| 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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2015
- 2015-01-07 CN CN201510006917.7A patent/CN104438409B/en active Active
Patent Citations (7)
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| 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 |
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