CN104785562A - Bidirectional extrusion forming device and extrusion forming process for special-shaped sleeve - Google Patents
Bidirectional extrusion forming device and extrusion forming process for special-shaped sleeve Download PDFInfo
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- CN104785562A CN104785562A CN201510140008.2A CN201510140008A CN104785562A CN 104785562 A CN104785562 A CN 104785562A CN 201510140008 A CN201510140008 A CN 201510140008A CN 104785562 A CN104785562 A CN 104785562A
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Abstract
The invention provides a bidirectional extrusion forming device and an extrusion forming process for a special-shaped sleeve and belongs to the technical field of sleeve forming. The bidirectional extrusion forming device comprises a hydraulic mechanism, a control mechanism, an extrusion mechanism and a base, wherein the hydraulic mechanism comprises a hydraulic station, a left hydraulic mechanism, a right hydraulic mechanism and a main hydraulic mechanism, the hydraulic station is arranged at the lower part of the base, and the left hydraulic mechanism, the right hydraulic mechanism and the main hydraulic mechanism are all arranged at the upper part of the base; the control mechanism comprises a PLC (Programmable Logic Controller) and a travel switch; a workbench is arranged at the upper part of the base; the extrusion mechanism comprises an upper die, a lower die, a left pressing head and a right pressing head. According to the structure characteristics of the special-shaped sleeve, the upper die, the lower die, the left pressing head and the right pressing head are designed and combined with the extrusion forming device, so that the qualified special-shaped sleeve is simply, quickly and accurately prepared.
Description
Technical field
The invention belongs to sleeve pipe field shaping technique, be specifically related to a kind of special-shaped casing tube bidirectional extrusion forming device and extrusion forming process thereof.
Background technology
Usually, can the tubular type stamping parts of the unidirectional withdrawing pattern vertically way that pressure head can be adopted unidirectionally extruded shaping, this way is simpler than stamping parts deep-drawing technique, and not easily produce drawing crack, wrinkling, wall is thin, the defect such as wall unevenness, can not often need radially to be divided into two stamping parts along the tubular type stamping parts of the unidirectional withdrawing pattern of axis is made split type, be made clampshell, then adopt the way of welding to weld together.
Traditional forming techniques such as the same punching press of hydraulic molding technique, welding are compared, and are novel rapid metallic prototyping techniques.In order to solve automobile, the technological problems of some complexity in the fields such as Aero-Space and technical requirement, from the 1950's, moral, U.S., Deng state scientist successively propose inner high voltage forming technique in association area.China scientist Wang Zhong benevolence teaching inventive in 1985 spherical container, without mould hydraulic molding technique, proposes housing hydraulic forming technique.In recent years, rely on the development of Computer Control Technology and high-pressure hydraulic, hydraulic molding technique developed rapidly.At present, the part of a lot of labyrinth can pass through the processing in bulk of this technology.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, provides a kind of special-shaped casing tube bidirectional extrusion forming device and extrusion forming process thereof, and stamping parts need not split, reduces welding sequence.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of special-shaped casing tube bidirectional extrusion forming device, comprise hydraulic mechanism, controlling organization, pressing mechanism and pedestal, described hydraulic mechanism is arranged on pedestal, described controlling organization is arranged on the top of pedestal, and described pressing mechanism is arranged on the top of pedestal.
Described hydraulic mechanism comprises Hydraulic Station, left hydraulic mechanism, right hydraulic mechanism and main hydraulic device, and described Hydraulic Station is arranged on the bottom of pedestal, and described left hydraulic mechanism, right hydraulic mechanism and main hydraulic device are all arranged on the top of pedestal.
Described controlling organization comprises PLC and travel switch.
The top of described pedestal arranges workbench.
Described pressing mechanism comprises upper die and lower die, left pressure head and right pressure head.
Described patrix is arranged on main hydraulic device, and described counterdie is arranged on the top of workbench, and described patrix and counterdie are laminated the extruding die cavity being formed and hold workpiece, and described left pressure head is arranged on left hydraulic mechanism, and described right pressure head is arranged on right hydraulic mechanism.
Fitting in the lower surface of described left pressure head and the upper surface of described counterdie, fits in the upper surface of described right pressure head and the lower surface of described patrix, fit in the upper surface of described left pressure head and the lower surface of described right pressure head.
Fitting in the upper surface of described left pressure head and the lower surface of described patrix, fits in the lower surface of described right pressure head and the upper surface of described counterdie, fit in the lower surface of described left pressure head and the upper surface of described right pressure head.
Described main hydraulic device is arranged on the center on pedestal top by supporting component.
In described Hydraulic Station, liquid reserve tank is set.
Described Hydraulic Station arranges oil temperature oil level indicator.
Based on an extrusion forming process for above-mentioned special-shaped casing tube bidirectional extrusion forming device, comprise the following steps:
The first step: workpiece is placed on described counterdie, start main hydraulic device, described patrix under the promotion of main hydraulic device, with described counterdie pressing;
Second step: start left hydraulic mechanism and right hydraulic mechanism, described left hydraulic mechanism and right hydraulic mechanism promote the two ends that left pressure head and right pressure head close described workpiece respectively;
3rd step: described left pressure head and right pressure head under the control of described left hydraulic mechanism and right hydraulic mechanism locking phase to propelling, by extruded for described workpiece.
Special-shaped casing tube bidirectional extrusion forming device of the present invention, comprise hydraulic mechanism, controlling organization, pressing mechanism and pedestal, the pressing mechanism of special-shaped casing tube and hydraulic mechanism, controlling organization, pedestal are combined, like this when special-shaped casing tube finished form changes, pressing mechanism can be changed neatly, make it the needs meeting product structure.
Hydraulic mechanism of the present invention comprises Hydraulic Station, left hydraulic mechanism, right hydraulic mechanism and main hydraulic device, can arrange in Hydraulic Station
fuel tank, direction valve, choke valve, overflow valve etc. form
hydraulic power sourcedevice or comprise
control valveat interior hydraulic means, the part control element of hydraulic mechanism left in the present invention, right hydraulic mechanism and main hydraulic device and auxiliary element put together by Hydraulic Station like this, reduce taking up room of equipment, are convenient to carry out unified management.Left hydraulic mechanism, right hydraulic mechanism and main hydraulic device are existing conventional equipment, and hydraulic pump is plunger displacement pump preferably axially, and it is simple to operate, soft starter for motor, and can reduce the impact to machinery, efficiency is high, and Flow-rate adjustment is convenient, compact conformation.And, described Hydraulic Station is arranged on the bottom of pedestal, described left hydraulic mechanism, right hydraulic mechanism and main hydraulic device are all arranged on the top of pedestal, described main hydraulic device is arranged on the center on pedestal top by supporting component, increase the precision of extrusion process, make extruded speed faster, efficiency is higher.
Controlling organization of the present invention comprises PLC and travel switch, wherein PLC is provided with pressure sensitive module, displacement monitoring module and temperature monitoring module etc., can control the process of special-shaped casing tube flexibly, accurately, prevent workpiece excessive extrusion, monitor the stroke of pressure head constantly, reduce the damage of mould.In conjunction with above-mentioned hydraulic mechanism, improve the extruded qualification rate of special-shaped casing tube and precision, realize zero and scrap.
In the present invention, pressing mechanism comprises upper die and lower die, left pressure head and right pressure head.Wherein, the shape of upper die and lower die, left pressure head and right pressure head all forms according to the profile design of special-shaped casing tube finished product.The two ends diameter of special-shaped casing tube is not etc.Described workpiece be by blank on forcing press through the straight tube blank that unidirectionally extruded method is prepared from, and each perimeter of section of straight tube blank is equal with the respective cross-section girth of special-shaped casing tube finished product.Patrix is connected with main hydraulic device by bolt, counterdie is fixed on workbench, left pressure head is connected with right hydraulic mechanism with left hydraulic mechanism respectively with the rear portion of right pressure head, and the rear portion of left pressure head and right pressure head is equipped with the limited block controlling pressure head and advance, and avoids excessive compression.Like this, under the driving of main hydraulic device, upper die and lower die pressing extrudes straight tube blank, straight tube blank is that shape there occurs change, the girth in each cross section does not change substantially, the shape of straight tube blank after the internal strain of extruding die cavity is basic similar to die cavity, and mid portion and die cavity are very identical, just two ends out-of-shape.Then, left pressure head and right pressure head are under the promotion of left hydraulic mechanism and right hydraulic mechanism, axial direction along workpiece extrudes in opposite directions, because left pressure head, the shape of right pressure head have corresponding relation with the shape of upper die and lower die, when left pressure head and right pressure head march to setting program, namely both ends overlap, thus complete the shaping to straight tube blank two ends shape, namely complete and turn to the such process of special-shaped casing tube finished product by changing of workpieces.
The invention has the beneficial effects as follows: the present invention is according to the features of shape design upper die and lower die of special-shaped casing tube and left and right pressure head, and itself and hydraulic mechanism are combined, patrix is under the promotion of main hydraulic system, the extruding die cavity of described workpiece is formed with described counterdie pressing, left pressure head and right pressure head first close the two ends of described workpiece under the promotion of left hydraulic mechanism and right hydraulic mechanism, then locking phase is continued to propelling, by extruded for described workpiece.Extrusion process of the present invention compares existing drawing process, and shaping speed is fast, and extrusion process is few, and equipment is safe and reliable to operation, decreases number of molds, improves finished product accuracy, and product qualified rate is high.
The present invention, according to the design feature of special-shaped casing tube, designs upper die and lower die, left pressure head and right pressure head, and it is combined with extrusion forming device, thus prepare qualified special-shaped casing tube simply, rapidly.
figure of description
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Fig. 1: the structural representation of special-shaped casing tube of the present invention;
Fig. 2: the structural representation of bidirectional extrusion forming device of the present invention;
Fig. 3: the top view of bidirectional extrusion forming device of the present invention;
Fig. 4: the partial structurtes schematic diagram before bidirectional extrusion forming technique matched moulds of the present invention;
Fig. 5: the partial sectional view after bidirectional extrusion forming technique matched moulds of the present invention;
Fig. 6: the special-shaped casing tube moulding process schematic diagram of comparative example;
Wherein, 1-special-shaped casing tube, 2-pedestal, 3-Hydraulic Station, the left hydraulic mechanism of 4-, the right hydraulic mechanism of 5-, 6-main hydraulic device, 7-PLC, 8-travel switch, 9-workbench, 10-patrix, 11-counterdie, the left pressure head of 12-, the right pressure head of 13-, 14-supporting component, 15-upper casing, 16-lower casing, 17-workpiece.
Detailed description of the invention
In order to illustrate further in more detail instead of limit the present invention, referring now to Fig. 1 to Fig. 6, embodiments of the invention are described in further detail.
As shown in Figure 1, the special-shaped casing tube 1 of the present embodiment is often applied in the aspect such as vehicle vent gas discharging pipe, suppressor case, belongs to existing pipe fitting.
In order to the special-shaped casing tube shown in shop drawings 1, as shown in Figures 2 and 3, special-shaped casing tube bidirectional extrusion forming device of the present invention, comprise hydraulic mechanism, controlling organization, pressing mechanism and pedestal 2, described hydraulic mechanism is arranged on the base 2, described controlling organization is arranged on the top of pedestal 2, described pressing mechanism is arranged on the top of pedestal 2, described hydraulic mechanism comprises Hydraulic Station 3, left hydraulic mechanism 4, right hydraulic mechanism 5 and main hydraulic device 6, described Hydraulic Station 3 is arranged on the bottom of pedestal 1, described left hydraulic mechanism 4, right hydraulic mechanism 5 and main hydraulic device 6 are all arranged on the top of pedestal 1, described controlling organization comprises PLC7 and travel switch 8, the top of described pedestal 1 arranges workbench 9, described pressing mechanism comprises patrix 10, counterdie 11, left pressure head 12 and right pressure head 13.
And, described patrix 10 is arranged on main hydraulic device 6, and described counterdie 11 is arranged on the top of workbench 9, and described patrix 10 and counterdie 11 are laminated the extruding die cavity being formed and hold workpiece, described left pressure head 12 is arranged on left hydraulic mechanism 4, and described right pressure head 13 is arranged on right hydraulic mechanism 5.
Preferably, described main hydraulic device 6 is arranged on the center on pedestal 1 top by supporting component 14, the overall structure of this sampling device is more well-balanced, also convenient to the control of left and right hydraulic mechanism.
And, left pressure head 10 and right pressure head 11 need meet the following conditions: fit in the described lower surface of left pressure head 12 and the upper surface of described counterdie 11, fitting in the upper surface of described right pressure head 13 and the lower surface of described patrix 10, fits in the upper surface of described left pressure head 12 and the lower surface of described right pressure head 13.
Or fit in the described upper surface of left pressure head 10 and the lower surface of described patrix 10, fit in the described lower surface of right pressure head 11 and the upper surface of described counterdie 11, fit in the lower surface of described left pressure head 10 and the upper surface of described right pressure head 11.Like this, left pressure head 10 and right pressure head 11 could accurately cooperate when extruded, prepare special-shaped casing tube 1 accurately and fast.
In addition, in described Hydraulic Station 3, liquid reserve tank is set.Described Hydraulic Station 3 is provided with oil temperature oil level indicator, conveniently can checks temperature and the liquid level of liquid in liquid reserve tank, be convenient to control.
Set forth extrusion forming process of the present invention below in conjunction with Fig. 4 and Fig. 5, the present invention is based on the extrusion forming process of above-mentioned special-shaped casing tube bidirectional extrusion forming device, carry out according to the following steps:
The first step: workpiece 17 is placed on described counterdie 11, start main hydraulic device 6, described patrix 10 under the promotion of main hydraulic device 6, with the pressing of described counterdie 11;
Second step: start left hydraulic mechanism 4 and right hydraulic mechanism 5, described left hydraulic mechanism 4 and right hydraulic mechanism 5 promote the two ends that left pressure head 12 and right pressure head 13 close described workpiece 17 respectively;
3rd step: described left pressure head 12 and right pressure head 13 under the control of described left hydraulic mechanism 4 and right hydraulic mechanism 5 locking phase to propelling, by extruded for described workpiece 17.
As the further improvement to extrusion forming process of the present invention, in above-mentioned 3rd step, described left pressure head 12 and right pressure head 13 are synchronously gradual under the control of described left hydraulic mechanism 4 and right hydraulic mechanism 5 to be advanced, in opposite directions by extruded for described workpiece 17.Particularly, under the control of PLC7 and travel switch 8, left pressure head 12 and right pressure head 13 is synchronously progressive advances in opposite directions, make workpiece 17 have a process cushioning and adapt to, the end product quality obtained is higher, longer service life, and combination property is more excellent.
Comparative example
In order to enable those skilled in the art understand the present invention better, the invention provides conventional preparation technology.
As shown in Figure 6, in the prior art, the processing step making special-shaped casing tube comprises:
A, first workpiece 17 is radially divided into two stamping parts, prepares upper casing 15 and lower casing 16;
B, again by described upper casing 15 and lower casing 16 integrally welded, namely obtain special-shaped casing tube 1 finished product.
Compared to existing technology, adopt special-shaped casing tube bidirectional extrusion forming device of the present invention and extrusion forming process thereof, the qualification rate of special-shaped casing tube finished product at least improves 80%, and one-shot forming, without the need to split, decreases operation, and saved cost, finished product accuracy is higher.
Every claim that a kind of special-shaped casing tube of the present invention bidirectional extrusion forming device and extrusion forming process thereof are addressed and technical support clear and definite, the technological means do not elaborated in the present invention is prior art, and all any amendments done according to technical support essence of the present invention and change still belong in the scope that the technology of the present invention supports.
Claims (8)
1. a special-shaped casing tube bidirectional extrusion forming device, comprise hydraulic mechanism, controlling organization, pressing mechanism and pedestal, described hydraulic mechanism is arranged on pedestal, described controlling organization is arranged on the top of pedestal, described pressing mechanism is arranged on the top of pedestal, described hydraulic mechanism comprises Hydraulic Station, left hydraulic mechanism, right hydraulic mechanism and main hydraulic device, described Hydraulic Station is arranged on the bottom of pedestal, described left hydraulic mechanism, right hydraulic mechanism and main hydraulic device are all arranged on the top of pedestal, described controlling organization comprises PLC and travel switch, the top of described pedestal arranges workbench, it is characterized in that: described pressing mechanism comprises patrix, counterdie, left pressure head and right pressure head.
2. special-shaped casing tube bidirectional extrusion forming device as claimed in claim 1, it is characterized in that: described patrix is arranged on main hydraulic device, described counterdie is arranged on the top of workbench, described patrix and counterdie are laminated the extruding die cavity being formed and hold workpiece, described left pressure head is arranged on left hydraulic mechanism, and described right pressure head is arranged on right hydraulic mechanism.
3. special-shaped casing tube bidirectional extrusion forming device as claimed in claim 2, it is characterized in that: fit in the lower surface of described left pressure head and the upper surface of described counterdie, fitting in the upper surface of described right pressure head and the lower surface of described patrix, fits in the upper surface of described left pressure head and the lower surface of described right pressure head.
4. special-shaped casing tube bidirectional extrusion forming device as claimed in claim 2, it is characterized in that: fit in the upper surface of described left pressure head and the lower surface of described patrix, fitting in the lower surface of described right pressure head and the upper surface of described counterdie, fits in the lower surface of described left pressure head and the upper surface of described right pressure head.
5. the special-shaped casing tube bidirectional extrusion forming device as described in claim 3 or 4, is characterized in that: described main hydraulic device is arranged on the center on pedestal top by supporting component.
6. the special-shaped casing tube bidirectional extrusion forming device as described in claim 3 or 4, is characterized in that: arrange liquid reserve tank in described Hydraulic Station.
7. special-shaped casing tube bidirectional extrusion forming device as claimed in claim 6, is characterized in that: described Hydraulic Station arranges oil temperature oil level indicator.
8. an extrusion forming process for the special-shaped casing tube bidirectional extrusion forming device as described in any one of claim 1 ~ 4, is characterized in that, comprise the following steps:
The first step: workpiece is placed on described counterdie, start main hydraulic device, described patrix under the promotion of main hydraulic device, with described counterdie pressing;
Second step: start left hydraulic mechanism and right hydraulic mechanism, described left hydraulic mechanism and right hydraulic mechanism promote the two ends that left pressure head and right pressure head close described workpiece respectively;
3rd step: described left pressure head and right pressure head under the control of described left hydraulic mechanism and right hydraulic mechanism locking phase to propelling, by extruded for described workpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510140008.2A CN104785562B (en) | 2015-03-30 | 2015-03-30 | Bidirectional extrusion forming device and extrusion forming process for special-shaped sleeve |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510140008.2A CN104785562B (en) | 2015-03-30 | 2015-03-30 | Bidirectional extrusion forming device and extrusion forming process for special-shaped sleeve |
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| Publication Number | Publication Date |
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| CN104785562A true CN104785562A (en) | 2015-07-22 |
| CN104785562B CN104785562B (en) | 2017-01-18 |
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Citations (7)
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| US20050172692A1 (en) * | 2004-02-09 | 2005-08-11 | Yutaka Giken Co., Ltd. | Method of bending pipe and apparatus therefor |
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| JP2009131880A (en) * | 2007-11-30 | 2009-06-18 | Asteer Co Ltd | Method of manufacturing eccentrically expanded pipe and concentric die |
| KR20100040471A (en) * | 2008-10-10 | 2010-04-20 | 주식회사 에스디비 | Press mold for pipe bending machine |
| CN101972795A (en) * | 2010-09-13 | 2011-02-16 | 浙江天兴管业有限公司 | Machining process of metal elbow |
| CN103357729A (en) * | 2012-03-26 | 2013-10-23 | 苏州泰克诺机电有限公司 | Hydraulic flanging forming machine |
| CN204657135U (en) * | 2015-03-30 | 2015-09-23 | 西峡县内燃机进排气管有限责任公司 | A kind of special-shaped casing tube bidirectional extrusion forming device |
-
2015
- 2015-03-30 CN CN201510140008.2A patent/CN104785562B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050172692A1 (en) * | 2004-02-09 | 2005-08-11 | Yutaka Giken Co., Ltd. | Method of bending pipe and apparatus therefor |
| CN200942596Y (en) * | 2006-04-29 | 2007-09-05 | 苏州市佳达数控拉伸机械有限公司 | Double driven hydraulic extruding machine |
| JP2009131880A (en) * | 2007-11-30 | 2009-06-18 | Asteer Co Ltd | Method of manufacturing eccentrically expanded pipe and concentric die |
| KR20100040471A (en) * | 2008-10-10 | 2010-04-20 | 주식회사 에스디비 | Press mold for pipe bending machine |
| CN101972795A (en) * | 2010-09-13 | 2011-02-16 | 浙江天兴管业有限公司 | Machining process of metal elbow |
| CN103357729A (en) * | 2012-03-26 | 2013-10-23 | 苏州泰克诺机电有限公司 | Hydraulic flanging forming machine |
| CN204657135U (en) * | 2015-03-30 | 2015-09-23 | 西峡县内燃机进排气管有限责任公司 | A kind of special-shaped casing tube bidirectional extrusion forming device |
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| CN104785562B (en) | 2017-01-18 |
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