CN203030656U - Reducing pipe expansion drawing forming device - Google Patents
Reducing pipe expansion drawing forming device Download PDFInfo
- Publication number
- CN203030656U CN203030656U CN 201220744214 CN201220744214U CN203030656U CN 203030656 U CN203030656 U CN 203030656U CN 201220744214 CN201220744214 CN 201220744214 CN 201220744214 U CN201220744214 U CN 201220744214U CN 203030656 U CN203030656 U CN 203030656U
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- pipe
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Abstract
The utility model relates to metal pipe machining, in particular to a reducing pipe expansion drawing forming device which comprises a frame, a hydraulic station, a pushing baffle plate and a pushing seat, wherein the pushing baffle plate is fixed at one end of the frame, and the pushing seat is fixed onto the pushing baffle plate. One end of a pipe is fixed into the pushing seat, the other end of the frame is provided with a movable mould base, the movable mould base is pushed by a pipe sleeve to move along guide posts towards the tip of the pipe, the guide posts are fixed on two sides of the frame, one end of the pipe sleeve is connected with the movable mould base, and the other end of the pipe sleeve is fixed to the tip of a piston rod of a hydraulic cylinder controlled by the hydraulic station. The pipe is necked down by a necking pushing head mounted on the movable mould base, and the pipe is drawn by clamping the necked position of the pipe through a drawing chuck mounted on the movable mould base. Owing to the structure, the reducing pipe expansion drawing forming device has the advantages that machining quality and precision of the reducing pipe are improved, and relatively long and thin reducing pipes can be produced.
Description
Technical field
The utility model relates to metal pipe material processing, specifically is a kind of reduced pipe quality precision and the breathing drawing shaped device that can produce relative elongated reduced pipe of improving.
Background technology
So-called reduced pipe is commonly called as concentric reducer, is a kind of pipe fitting for the pipeline reducing diameter place.Using maximum is on the pipeline in chemical plant.Usually be divided into Concentric Reducers and eccentric reducer.The material of reduced pipe comprises stainless steel reduced pipe and steel alloy reduced pipe, No. 20 firm reduced pipes etc.
Reduced pipe has national standard, as " steel butt welding seamless pipe " GB/T12459-2005, and " steel plate butt welding pipe fitting processed " GB/T13401-2005 etc.
The caliber specification of reduced pipe is from the 25(major part) * 15(microcephaly) to the 1500(major part) * 1200(microcephaly), the length of reduced pipe the shortest is 51 millimeters, and is the longest 610 millimeters.
Reduced pipe adopts undergauge moulding process, hole enlargement moulding process, punch forming process usually.
The reducing formation technology of reduced pipe is that the pipe that equates with the reduced pipe outside diameter is put into finishing die, by the compacting along the pipe axial direction, makes metal move and shrink shaping along die cavity.According to the size of reduced pipe reducing, be divided into press forming or press forming repeatedly.
It is the pipe that adopts less than the reduced pipe outside diameter that hole enlargement is shaped, and is shaped along the hole enlargement of pipe internal diameter with interior punch die.Expanding technology mainly solves the difficult situation by reducing formation of reducing reduced pipe bigger than normal, sometimes according to material and product shaping needs, the method merging of hole enlargement and undergauge is used.
Except using steel pipe to produce the reduced pipe as raw material, to the reduced pipe of part specification also available steel plate adopt process for stamping and forming to produce.Stretch employed punch die shape with reference to reduced pipe inner surface size design, be shaped with the steel plate punching stretch of punch die after with blanking.
The cold drawing of prior art is a kind of traditional flow of metal processing technology, is widely used in the stretching of deformed bar, the drawing of iron and steel copper wires, bar, tubing etc.The purpose of this stretching drawing is to obtain the high-precision metal material, as cold drawn aluminum pipe, can produce best bright finish, the high-precision aluminum pipe material of high dimensional accuracy; Obtain the diversified bar of shape specification, as produce six square steel rods, six side's aluminium bars, six copper square bars; Obtain high economic benefit, save process time, reduce the machining expense, save metal material, as cold drawn tooth base etc.Usually the equivalent diameter of material that cold drawing draws can be very not big, and draw ratio is big especially.This cold-drawing process can only carry out the drawing of single bore to tube-drawing the time, can't realize the drawing of reduced pipe.
The process of prior art and equipment can't be processed elongated relatively reduced pipe.
Summary of the invention
The purpose of this utility model provides a kind of reduced pipe quality precision and the breathing drawing manufacturing installation that can produce relative elongated reduced pipe of improving.
For realizing that the technical scheme that the utility model above-mentioned purpose adopts is: a kind of breathing drawing shaped device of reduced pipe, wherein this device comprises
Frame and Hydraulic Station are fixed on the baffle plate of pushing of frame one end, are fixed on the seat of pushing on the baffle plate of pushing, and an end of tubing is fixed on to be pushed in the seat;
The other end of frame has the dynamic model seat, the dynamic model seat promotes the lower edge guide pillar at pipe box and moves to the termination of tubing, guide pillar is fixed on the both sides of frame, and an end of this pipe box is connected with the dynamic model seat, and the other end of pipe box is fixed on the hydraulic cylinder piston rod termination by Hydraulic Station control;
Push head tubing is carried out necking down by being installed in necking down on the dynamic model seat, this necking down is pushed head and is comprised the die sleeve that is fixed on the dynamic model seat, be arranged on the necking down mould in the draw die sleeve, tubing passes the necking down mould, promote the dynamic model seat by pipe box, tubing is pushed distortion in the necking down mould, make an end diameter of tubing diminish i.e. necking down;
Above-mentioned necking down pushed be installed in after unloading on the driven die holder fixedly on the die holder, the fixed die seat is positioned at the bottleneck of tubing, and fixedly die holder is fixed on the frame, is implemented in the tubing bottleneck tubing is positioned; Carry out drawing by the necking down position that is installed in the drawing chuck clamping tubing on the dynamic model seat, this drawing chuck comprises the core print that is fixed as one with the dynamic model seat, core print is outside equipped with the dynamic model cover, the dynamic model cover is fixed on the dynamic model seat, a pair of card lobe is arranged in the dynamic model cover by symmetry, this card lobe outer wall has tapering, inwall has sharp annular tooth, card lobe and core print form drawing mould, between card lobe and core print, has the slit that the tube wall for tubing penetrates, card lobe and core print are clamped in the tube wall of tubing in this slit, are provided with the card lobe clutch of a control card lobe and tubing clutch at dynamic model cover outer wall; After the tube wall clamping with tubing of card lobe clutch control card lobe and core print, the dynamic model seat to moving away from tubing necking down port end, is realized the drawing deformation to tubing with pipe box, makes tubing form the reduced pipe blank;
Head is pushed in the necking down of said fixing on die holder unloaded, locate by the sizing mould that is fixed on the die holder at the reducing place of reduced pipe blank; The heavy caliber end of plug from the reduced pipe blank penetrated, and an end of plug is pushed on the baffle plate from being fixed on after the small-caliber end of reduced pipe blank passes, and the other end of plug has core print, and core print is limited on the inwall at tubing reducing place; Change the drawing mould of above-mentioned drawing chuck, by the drawing mould after changing reduced pipe blank heavy caliber end is clamped, the dynamic model seat with pipe box to moving away from reduced pipe blank heavy caliber end, tubing moves with the drawing chuck one that is fixed on the dynamic model seat, small-bore section internal diameter of tubing be expander under the expander head effect of plug, the spacing moulding of necking down mould that small-bore section external diameter of tubing pushed head by the necking down that is fixed on the die holder realizes the sizing of small-bore section of reduced pipe blank is decided wall thickness.
By said structure, the crudy precision that the utility model shown device has improved high reduced pipe has realized the production to elongated relatively reduced pipe, and is concrete and can say it is can make in 150 millimeters of the pipe diameters, and 4 meters of length are with interior tubing.
The reduced pipe of said apparatus production can be widely used in demands such as light rail vehicle, railcar or high ferro vehicle
Description of drawings
The utility model can further specify by the non-limiting embodiment that accompanying drawing provides.
Accompanying drawing 1 is structural representation of the present utility model.
Accompanying drawing 2 is pushed the structural representation of seat for the utility model.
Accompanying drawing 3 is pushed the structural representation of head for the utility model necking down.
Accompanying drawing 4 is the structural representation of the utility model drawing chuck.
Accompanying drawing 5 be in the accompanying drawing 4 A to structural representation.
Structural representation when accompanying drawing 6 is the drawing of the utility model device draw.
Accompanying drawing 7 is that the utility model device sizing is decided wall thickness drawing structural representation.
Among the figure: 1, frame; 2, Hydraulic Station; 3, push baffle plate; 4, push seat; 5, tubing; 6, dynamic model seat; 7, pipe box; 8, guide pillar; 9, hydraulic cylinder piston rod; 10, die sleeve; 11, necking down mould; 12, fixing die holder; 13, core print; 14, dynamic model cover; 15, card lobe; 16, card lobe clutch; 17, plug; 18, rotating shaft; 19, spring; 20, driving lever; 21, Long-distance Control bar; 22, set bolt; 23, clamp; 24, bolt; 25, supporting seat; 26, overcoat; 27, protective sleeve; 28, footpath, top mould; 29, core print.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
Referring to accompanying drawing 1 to 7, the breathing drawing shaped device of the reduced pipe in the accompanying drawing, wherein this device comprises
The other end of frame 1 has dynamic model seat 6, dynamic model seat 6 promotes lower edge guide pillar 8 at pipe box 7 and moves to the termination of tubing 5, guide pillar 8 is fixed on the both sides of frame 1, and an end of this pipe box 7 is connected with dynamic model seat 6, and the other end of pipe box 7 is fixed on hydraulic cylinder piston rod 9 terminations by Hydraulic Station 2 controls;
Above-mentioned necking down pushed be installed in after unloading on the driven die holder 6 fixedly on the die holder 12, fixedly die holder 12 is positioned at the bottleneck of tubing 5, and fixedly die holder 12 is fixed on the frame 1, is implemented in tubing 5 bottlenecks tubing 5 is positioned; Carry out drawing by the necking down position that is installed in the drawing chuck clamping tubing 5 on the dynamic model seat 6, this drawing chuck comprises the core print 13 that is fixed as one with dynamic model seat 6, core print 13 is outside equipped with dynamic model cover 14, dynamic model cover 14 is fixed on the dynamic model seat 6, a pair of card lobe 15 is arranged in the dynamic model cover 14 by symmetry, these card lobe 15 outer walls have tapering, inwall has sharp annular tooth, card lobe 15 forms drawing mould with core print 13, between card lobe 15 and core print 13, has the slit that the tube wall of confession tubing 5 penetrates, card lobe 15 is clamped in this slit with the tube wall of core print 13 with tubing 5, overlaps the card lobe clutch 16 that 14 outer walls are provided with a control card lobe 15 and tubing 5 clutches at dynamic model; After the tube wall clamping with tubing 23 of card lobe clutch 16 control card lobes 15 and core print 13, dynamic model seat 6 to moving away from tubing 5 necking down port end, is realized the drawing deformation to tubing 5 with pipe box 7, makes tubing 5 form the reduced pipe blanks;
Head is pushed in the necking down of said fixing on die holder 12 unloaded, locate by the sizing mould 28 that is fixed on the die holder 12 at the reducing place of reduced pipe blank; The heavy caliber end of plug 17 from the reduced pipe blank penetrated, and an end of plug 17 is pushed on the baffle plate 3 from being fixed on after the small-caliber end of reduced pipe blank passes, and the other end of plug 17 has core print 29, and core print 29 is limited on the inwall at tubing 5 reducing places; Change the drawing mould of above-mentioned drawing chuck, by the drawing mould after changing reduced pipe blank heavy caliber end is clamped, dynamic model seat 6 with pipe box 7 to moving away from reduced pipe blank heavy caliber end, tubing 5 moves with the drawing chuck one that is fixed on the dynamic model seat 6, small-bore section internal diameter of tubing 5 be expander under the expander head effect of plug 17, the necking down mould 11 spacing moulding that small-bore section external diameter of tubing 5 pushed head by the necking down that is fixed on the die holder 12 realize the sizing of small-bore section of reduced pipe blank is decided wall thickness.In this embodiment, tubing 5 by steady pin be fixed on push the seat 4 in, necking down push the head the necking down mould 11 that adopts according to the design amount of pushing, have a plurality of necking down moulds 11, every necking down is pushed and is changed a necking down mould 11 successively; The card lobe 15 of drawing chuck is used as drawing mould with the drawing mould structure that core print 15 forms, this mould structure is also decided the drawing mould usefulness of wall thickness as sizing simultaneously, decide design of Wall Thickness drawing amount according to design drawing amount and sizing and determine the drawing mould number, carry out the drawing of multi-pass according to the drawing mould number, to realize improving quality and the precision of reduced pipe finished product.In this embodiment, actual is to push head, drawing chuck and plug 17 cooperations by necking down to realize tubing 5 necking downs, drawing and expander are formed the moulding reduced pipe.
For ease of the control operation that tubing 5 is firmly grasped, in above-described embodiment, preferably: described card lobe clutch 16 comprises the rotating shaft 18 that is installed on the card lobe clutch 16 and the driving lever 20 that penetrates in the spring 19, this spring 19 is positioned at card lobe clutch 16 outer walls, stir the clutch of card lobe 15 and tubing 5 by adjusting driving lever 20, when card lobe clutch 16 pushes away to the right, the card lobe is just toward moving left, at this moment, piston rod 9 traction pipe boxes 7 drive dynamic model seat 6 and move right, dynamic model seat 6 drives dynamic model cover 14 and moves right, dynamic model cover 14 gives the card lobe 15 1 radial pressures, card lobe 15 is along with dynamic model cover 6 moves right, dynamic model overlaps the outer wall that 14 inwalls block card lobe 15 inflexibly, and the annular tooth of then blocking lobe 15 gets one's teeth into tubing 5, and has core print 13 to head in the tubing 5, metal tube is capable, is carried out drawing deformation by the pull-up to the right of drawing chuck or sizing is decided the wall thickness drawing deformation.
For ease of Long-distance Control card lobe clutch 16, in above-described embodiment, preferably: described card lobe clutch 16 tops are equipped with Long-distance Control bar 21.
For ease of assembling, in above-described embodiment, preferably: pass successively by set bolt 22 and to push seat 4, push baffle plate 3 and clamp 23, will push seat 4 and push baffle plate 3 and be fixed as one.
For ease of assembling, in above-described embodiment, preferably: described core print 13 is fixed as one by bolt 24 and dynamic model seat 6.
Because tubing 5 is relatively long; under powerful hydraulic thrust; pipe can be pressed and be collapsed or bend bent; the middle part of pipe is weak link, therefore, and in above-described embodiment; preferably: be provided with the supporting seat 25 that prevents tubing 5 distortion at the middle part of tubing 5; supporting seat 25 is fixed on the frame 1, at supporting seat 25 overcoat 26 is installed, and protective sleeve 27 is housed in the overcoat 26.Prevent effectively that by this structure tubing 5 is out of shape in necking down, drawing and expander formation moulding reduced pipe process, reduce scrappage, reduce production costs.In this embodiment, supporting seat 25 can be substituted by fixing die holder 12, at fixing die holder 12 overcoats 26 is installed, and overlaps 27 protections that are implemented in tubing 5 at overcoat 26 built-in protectives, and in actual use, supporting seat 25 is a plurality of, is distributed on the middle part of tubing 5.
In the said structure, the breathing drawing shaped device of same reduced pipe has effectively been realized necking down, drawing and expander in that tubing 5 is made in the reduced pipe process, simultaneously by above-mentioned five step formula technologies, realize the processing to tubing 5, improved quality and the precision of reduced pipe finished product.
Referring to accompanying drawing 7, tubing 5 shown in the accompanying drawing 7 is exactly the reduced pipe of moulding, will just be the moulding reduced pipe behind the small-bore section expander.
Obviously, all embodiment of foregoing description are a part of embodiment of the present utility model, rather than whole embodiment.Based on embodiment of the present utility model, those of ordinary skills are not making all other embodiment that obtain under the creative work prerequisite, all belong to the category of the utility model protection.
In sum, the crudy precision that the utility model has improved reduced pipe has realized the production to elongated relatively reduced pipe.
Claims (6)
1. the breathing drawing shaped device of a reduced pipe, it is characterized in that: this device comprises
Frame (1) and Hydraulic Station (2), what be fixed on frame (1) one end pushes baffle plate (3), is fixed on to push to push seat (4) on the baffle plate (3), and an end of tubing (5) is fixed on to be pushed in the seat (4);
The other end of frame (1) has dynamic model seat (6), dynamic model seat (6) promotes lower edge guide pillar (8) at pipe box (7) and moves to the termination of tubing (5), guide pillar (8) is fixed on the both sides of frame (1), one end of this pipe box (7) is connected with dynamic model seat (6), and the other end of pipe box (7) is fixed on hydraulic cylinder piston rod (9) termination by Hydraulic Station (2) control;
Push head tubing (5) is carried out necking down by being installed in necking down on the dynamic model seat (6), this necking down is pushed head and is comprised the die sleeve (10) that is fixed on the dynamic model seat (6), be arranged on the necking down mould (11) in the draw die sleeve (10), tubing (5) passes necking down mould (11), promote dynamic model seat (6) by pipe box (7), tubing (5) is pushed distortion in necking down mould (11), make an end diameter of tubing (5) diminish i.e. necking down;
Above-mentioned necking down pushed be installed in after unloading on the driven die holder (6) fixedly on the die holder (12), fixedly die holder (12) is positioned at the bottleneck of tubing (5), fixedly die holder (12) is fixed on the frame (1), is implemented in tubing (5) bottleneck tubing (5) is positioned; Carry out drawing by the necking down position that is installed in the drawing chuck clamping tubing (5) on the dynamic model seat (6), this drawing chuck comprises the core print (13) that is fixed as one with dynamic model seat (6), core print (13) is outside equipped with dynamic model cover (14), dynamic model cover (14) is fixed on the dynamic model seat (6), a pair of card lobe (15) is arranged in the dynamic model cover (14) by symmetry, this card lobe (15) outer wall has tapering, inwall has sharp annular tooth, card lobe (15) forms drawing mould with core print (13), between card lobe (15) and core print (13), has the slit that the tube wall of confession tubing (5) penetrates, card lobe (15) is clamped in this slit with the tube wall of core print (13) with tubing (5), is provided with the card lobe clutch (16) of a control card lobe (15) and tubing (5) clutch at dynamic model cover (14) outer wall; After the tube wall clamping with tubing (23) of card lobe clutch (16) control card lobe (15) and core print (13), dynamic model seat (6) with pipe box (7) to moving away from tubing (5) necking down port end, realization makes tubing (5) form the reduced pipe blank to the drawing deformation of tubing (5);
Head is pushed in the necking down of said fixing on die holder (12) unloaded, locate by the sizing mould (28) that is fixed on the die holder (12) at the reducing place of reduced pipe blank; The heavy caliber end of plug (17) from the reduced pipe blank penetrated, one end of plug (17) is pushed on the baffle plate (3) from being fixed on after the small-caliber end of reduced pipe blank passes, the other end of plug (17) has core print (29), and core print (29) is limited on the inwall at tubing (5) reducing place; Change the drawing mould of above-mentioned drawing chuck, by the drawing mould after changing reduced pipe blank heavy caliber end is clamped, dynamic model seat (6) with pipe box (7) to moving away from reduced pipe blank heavy caliber end, tubing (5) moves with the drawing chuck one that is fixed on the dynamic model seat (6), small-bore section internal diameter of tubing (5) be expander under the expander head effect of plug (17), the spacing moulding of necking down mould (11) that small-bore section external diameter of tubing (5) pushed head by the necking down that is fixed on the die holder (12) realizes the sizing of small-bore section of reduced pipe blank is decided wall thickness.
2. according to the breathing drawing shaped device of the reduced pipe of the described reduced pipe of claim 1, it is characterized in that: described card lobe clutch (16) comprises the rotating shaft (18) that is installed on the card lobe clutch (16) and penetrates driving lever (20) in the spring (19), this spring (19) is positioned at card lobe clutch (16) outer wall, stir the clutch of card lobe (15) and tubing (5) by adjusting driving lever (20), when card lobe clutch (16) pushes away to the right, the card lobe is just toward moving left, at this moment, piston rod (9) traction pipe box (7) drives dynamic model seat (6) and moves right, dynamic model seat (6) drives dynamic model cover (14) and moves right, dynamic model cover (14) gives the card lobe (15) radial pressures, card lobe (15) is along with dynamic model cover (6) moves right, dynamic model cover (14) inwall blocks the outer wall of card lobe (15) inflexibly, the annular tooth of then blocking lobe (15) gets one's teeth into tubing (5), and have core print (13) to head in the tubing (5), metal tube is capable, is carried out drawing deformation by the pull-up to the right of drawing chuck or sizing is decided the wall thickness drawing deformation.
3. according to the breathing drawing shaped device of the reduced pipe of claim 1 or 2 described reduced pipes, it is characterized in that: described card lobe clutch (16) top is equipped with Long-distance Control bar (21).
4. according to the breathing drawing manufacturing installation of the described reduced pipe of claim 1, it is characterized in that: pass successively by set bolt (22) and push seat (4), push baffle plate (3) and clamp (23), will push seat (4) and push baffle plate (3) and be fixed as one.
5. according to the breathing drawing manufacturing installation of the described reduced pipe of claim 1, it is characterized in that: described core print (13) is fixed as one by bolt (24) and dynamic model seat (6).
6. according to the breathing drawing manufacturing installation of the described reduced pipe of claim 1; it is characterized in that: be provided with the supporting seat (25) that prevents tubing (5) distortion at the middle part of tubing (5); supporting seat (25) is fixed on the frame (1); at supporting seat (25) overcoat (26) is installed, protective sleeve (27) is housed in the overcoat (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744214 CN203030656U (en) | 2012-12-31 | 2012-12-31 | Reducing pipe expansion drawing forming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220744214 CN203030656U (en) | 2012-12-31 | 2012-12-31 | Reducing pipe expansion drawing forming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203030656U true CN203030656U (en) | 2013-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220744214 Expired - Lifetime CN203030656U (en) | 2012-12-31 | 2012-12-31 | Reducing pipe expansion drawing forming device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203030656U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974633A (en) * | 2012-12-31 | 2013-03-20 | 刘选萍 | Swell-shrink drawing molding process and device for reducing pipes |
| CN103962403A (en) * | 2014-05-02 | 2014-08-06 | 内蒙古北方重工业集团有限公司 | Squeezing-drawing method for wall thickness reduction of heavy caliber tubular product |
-
2012
- 2012-12-31 CN CN 201220744214 patent/CN203030656U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974633A (en) * | 2012-12-31 | 2013-03-20 | 刘选萍 | Swell-shrink drawing molding process and device for reducing pipes |
| CN103962403A (en) * | 2014-05-02 | 2014-08-06 | 内蒙古北方重工业集团有限公司 | Squeezing-drawing method for wall thickness reduction of heavy caliber tubular product |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20140820 |
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| RGAV | Abandon patent right to avoid regrant |