CN104043741A - Steel tube necking die - Google Patents
Steel tube necking die Download PDFInfo
- Publication number
- CN104043741A CN104043741A CN201410300532.7A CN201410300532A CN104043741A CN 104043741 A CN104043741 A CN 104043741A CN 201410300532 A CN201410300532 A CN 201410300532A CN 104043741 A CN104043741 A CN 104043741A
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- Prior art keywords
- die
- plate
- sleeve
- guide
- steel pipe
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 56
- 239000010959 steel Substances 0.000 title claims abstract description 56
- 230000001603 reducing effect Effects 0.000 claims description 94
- 239000000463 material Substances 0.000 claims description 33
- 239000012528 membrane Substances 0.000 claims description 12
- 238000012856 packing Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 3
- 238000003825 pressing Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
The invention discloses a steel tube necking die. The steel tube necking die comprises a base plate, a lower die assembly, guide shafts, a movable plate, an upper fixed plate, an upper die assembly, guide columns and an upper die plate. The guide shafts are installed between the base plate and the upper fixed plate. The guide columns penetrate through the upper fixed plate, the lower ends of the guide columns are connected with the movable plate, and the upper ends of the guide columns are connected with the upper die plate. The guide shafts are sleeved with the movable plate. The upper die assembly comprises an upper die sleeve, a large necking die body, a small necking die body, a mandrel and a guide sleeve. The upper die sleeve is fixed to the lower end face of the movable plate. The guide sleeve, the large necking die body and the small necking die body are stacked in a mounting hole from bottom to top. The large necking die body and the small necking die body are concentrically provided with a larger necking die cavity and a small necking die cavity. A core rod is fixedly connected with the upper die plate, and the lower end of the core rod extends into the guide sleeve. The lower die assembly is fixed on the base plate and used for installation of a steel tube. The steel tube necking die can achieve two-time necking through one-time downward pressing, it can be guaranteed that the center of the upper die assembly is accurately aligned to the center of the lower die assembly, it is ensured that the upper die assembly vertically press downwards, and the downward pressing stroke of a punch can further be reduced.
Description
Technical field
The present invention relates to a kind of necking die, refer to especially a kind of steel pipe throat mould.
Background technology
On automobile absorber, need to use the steel pipe that end caliber dwindles for twice, so the general two cover necking dies that adopt of current this steel pipe throat complete, first a reducing is carried out in the end of steel pipe steel pipe on large reducing die, then secondary reducing is carried out to again in the position of reducing on another little reducing die.This mode efficiency is low, the surface of secondary reducing easy damaged reducing for the first time, the quality of reduction steel pipe.Also once pressed down at present the necking die of twice reducing, for example number of patent application is: 201310408181.7 open text discloses a kind of like this necking die, this necking die is to utilize lower membrane module to carry out reducing to steel pipe lower end, and this structure has defect: when this necking die operates, fairlead need to be put into in steel pipe lower end until upper reducing die is encountered in lower end 1.; Fairlead, not only as guide effect, the more important thing is that auxiliary steel pipe is vertical, so requirement on machining accuracy is very high, once deviation appears in machining accuracy, just there is deviation in the concentricity of upper reducing die and fairlead, directly causes steel pipe not vertical when reducing, like this, affected the precision of reducing.2. whether the installation accuracy of this fairlead, die cap has influence on equally steel pipe and puts vertically, affects the precision of reducing.3. in this necking die installation process, the more difficult aligning with one heart between upper die component and lower membrane module.4. this necking die adopts the upwards mode discharging of liftout, while simultaneously causing taking out steel pipe due to the existence of fairlead, not only to leave upper necking die but also need to leave fairlead, therefore, the distance that upper reducing die moves upward is longer, at least fairlead and reducing segment length sum, like this, the stroke of punch press is longer, and reducing speed is low.
Summary of the invention
Technical problem to be solved by this invention is: a kind of steel pipe throat mould is provided, this steel pipe throat mould utilizes upper die component to carry out twice reducing of a pressing action to steel pipe upper port, and utilize the axis of guide to position guiding, the center that can guarantee upper die component and lower membrane module is accurately aimed at, guaranteed that upper die component vertically presses down, also can dwindle punching machine presses stroke simultaneously.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of steel pipe throat mould, comprise base plate, lower membrane module, the axis of guide, portable plate, upper mounted plate, upper die component, lead and cope match-plate pattern, the described axis of guide is vertically fixed on base plate and number is at least two, fixed plate is fixed on the upper end of the axis of guide, the vertical slip cap of described portable plate is loaded on the axis of guide and between base plate and upper mounted plate, described lead vertically slides and runs through upper mounted plate and be fixedly connected with portable plate, and described cope match-plate pattern is fixed on the upper end of lead, described lower membrane module comprises the lower die-sleeve that is fixed on base plate, is installed on the lower fixed die in lower die-sleeve, is fixed on the lower die cap that compresses lower fixed die on lower die-sleeve, and counterdie covers and is provided with the axial hole of assigning that steel pipe inserts lower fixed die of being convenient to, described upper die component comprises Upper Die-sleeve, large reducing die, little reducing die, core, fairlead, described Upper Die-sleeve be fixed on portable plate lower surface and with lower die-sleeve center superposition, this Upper Die-sleeve is provided with for installing large, the axial installing hole of little reducing die and the patchhole for facilitating steel pipe to insert, the diameter of described installing hole is greater than the diameter of patchhole and the formation shoulder hole that is interconnected, described fairlead, large reducing die, little reducing die is from bottom to top stacked and placed in installing hole, cooperation is supported by the cascaded surface of shoulder hole in the lower end of described fairlead, described large reducing die, little reducing die is provided with large reducing die cavity and little reducing die cavity with one heart, the vertical setting of described plug and upper end are fixedly connected with cope match-plate pattern, described plug from top to bottom runs through upper mounted plate successively, portable plate, little reducing die cavity and large reducing die cavity and lower end are stretched in fairlead, the axis of this plug and large reducing die, the endoporus center superposition of little reducing die.
As a kind of preferred scheme, described necking die also comprises material returning sleeve, this material returning sleeve comprises material returned cylinder portion and the base portion being wholely set, this material returning sleeve movable set is on plug, portable plate is run through in this material returned cylinder portion, little reducing die cavity is concordant with the lower surface of large reducing die with large reducing die cavity and end face, and top and lower surface that described base portion is positioned at portable plate coordinate with portable plate upper surface.
As a kind of preferred scheme, the middle part of the described axis of guide is also fixed with gripper shoe, is fixed with the dependence mould that relies on supporting steel pipe in this gripper shoe.
As a kind of preferred scheme, described necking die also comprises lower location-plate, and this lower location-plate is installed on base plate upper surface, on this lower location-plate, arranges and is enclosed within the axis of guide locating hole of locating on the axis of guide, the lower die-sleeve locating hole that is enclosed within lower die-sleeve outside fix
As a kind of preferred scheme, described necking die also comprises middle location-plate, in this, location-plate is installed on the lower surface of portable plate, described portable plate is slidably mounted on the axis of guide by linear bearing, is provided with the Upper Die-sleeve locating hole that is enclosed within the straight bearing locating hole to bearing outside fix, is sleeved on Upper Die-sleeve outside fix on described middle location-plate.
As a kind of preferred scheme, between described upper reducing die and lower reducing die, be provided with packing ring.
As a kind of preferred scheme, described necking die also comprises location-plate, and on this, location-plate is installed on the lower surface of upper mounted plate, arranges and be enclosed within the axis of guide locating hole of locating on the axis of guide, the plug locating hole that is enclosed within mandrel outer location on this on location-plate.
Adopted after technique scheme, effect of the present invention is: 1. this necking die can be realized and once press down twice reducing equally, has saved one reducing operation and mould, has improved efficiency and has reduced cost; 2. this necking die utilizes the motion of axis of guide constraint upper die component, makes upper die component remain vertical motion, guarantees reducing effect; 3. the base plate of this necking die and portable plate, upper mounted plate can be processed simultaneously, guarantee that the center of upper die component and lower membrane module is aimed at; 4. this lower membrane module has just played the vertically fixedly effect of steel pipe, therefore upper die component has pressed down after reducing, after steel pipe can being proposed from lower membrane module while upwards moving, then steel pipe is to bottom knockout, the required upper and lower space of whole steel pipe reclaiming process reduces, shorten the movement travel of upper die component, improve reducing efficiency.
Again because described necking die also comprises material returning sleeve, this material returning sleeve comprises material returned cylinder portion and the base portion being wholely set, this material returning sleeve movable set is on plug, portable plate is run through in this material returned cylinder portion, little reducing die cavity is concordant with the lower surface of large reducing die with large reducing die cavity and end face, top and lower surface that described base portion is positioned at portable plate coordinate with portable plate upper surface, like this, when described upper die component is driven to lower reducing, steel pipe enters in large reducing die cavity and little reducing die cavity and material returning sleeve upwards can be backed down, and after reducing completes, when portable plate moves up, when the base portion of material returning sleeve fixes on upper mounted plate, on push away assembly and still can move up, until portable plate upper surface coordinates with the lower surface of base portion, now material returned cylinder portion to have run through little reducing die cavity and large reducing die cavity and lower end concordant with the lower surface of reducing die greatly, namely by the downward material returned of steel pipe, like this, this necking die is without other power drive material returning sleeve, operating process is simpler, efficiency further improves.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structure cutaway view of the embodiment of the present invention;
In accompanying drawing: 1. base plate; 2. descend location-plate; 3. lower die-sleeve; 4. descend die cap; 5. descend fixed die; 6. the axis of guide; 7. steel pipe; 8. gripper shoe; 9. Upper Die-sleeve; 10. fairlead; 11. large reducing dies; 12. little reducing dies; 13. packing rings; 14. linear bearings; Location-plate in 15.; Location-plate on 16.; 17. upper mounted plates; 18. material returning sleeve; 19. plugs; 20. leads; 21. cope match-plate patterns; 22. portable plates.
The specific embodiment
Below by specific embodiment, the present invention is described in further detail.
As shown in Figure 1, a kind of steel pipe 7 necking dies, comprise base plate 1, lower membrane module, the axis of guide 6, portable plate 22, upper mounted plate 17, upper die component, lead 20 and cope match-plate pattern 21, the described axis of guide 6 is vertically fixed on base plate 1 and number is at least two, upper surface and the axis of guide 6 locating holes that described lower location-plate 2 is fixed on base plate 1 are enclosed within on the axis of guide 6, fixed plate 17 is fixed on the upper end of the axis of guide 6, the vertical slip cap of described portable plate 22 is loaded on the axis of guide 6 and between base plate 1 and upper mounted plate 17, described lead 20 vertically slides and runs through upper mounted plate 17 and be fixedly connected with portable plate 22.The two ends of portable plate 22 are slidably mounted on the axis of guide 6 by linear bearing 14, middle location-plate 15 is installed on the lower surface of portable plate 22, on described middle location-plate 15, is provided with Upper Die-sleeve 9 locating holes that are enclosed within the straight bearing locating hole to bearing outside fix, are sleeved on Upper Die-sleeve 9 outside fixs.The lower surface of upper mounted plate 17 is fixed with location-plate 16, arrange on location-plate 16 on this this be enclosed within location on the axis of guide 6 the axis of guide 6 locating holes, be enclosed within plug 19 locating holes of plug 19 outside fixs.The axis of guide 6 hole locating holes on this on location-plate 16, lower location-plate 2 can complete in disposable punching press, improve the installation accuracy of the axis of guide 6, upper mounted plate 17, base plate 1, guarantee that the axis of guide 6 vertically installs.
Described cope match-plate pattern 21 is fixed on the upper end of lead 20, and this cope match-plate pattern 21 is for being arranged on the drift of punch press, and cope match-plate pattern 21 vertical motions just drive portable plate 22 vertical motions by lead 20, also drive plug 19 vertical motions simultaneously.
Described lower membrane module comprises the lower die-sleeve 3 that is fixed on base plate 1, is installed on the lower fixed die 5 in lower die-sleeve 3, is fixed on the lower die cap 4 that compresses lower fixed die 5 on lower die-sleeve 3, is provided with the axial hole of assigning that steel pipe 7 inserts lower fixed die 5 of being convenient on lower die cap 4; During use, steel pipe 7 lower ends are directly inserted into the material loading that has just completed steel pipe 7 in lower fixed die 5.
Described upper die component comprises Upper Die-sleeve 9, large reducing die 11, little reducing die 12, core, fairlead 10, described Upper Die-sleeve 9 be fixed on portable plate 22 lower surface and with lower die-sleeve 3 center superpositions; This Upper Die-sleeve 9 is provided with for axial installing hole and the patchhole for facilitating steel pipe 7 to insert of large and small reducing die 12 are installed, the diameter of described installing hole is greater than the diameter of patchhole and the formation shoulder hole that is interconnected, described fairlead 10, large reducing die 11, little reducing die 12 are from bottom to top stacked and placed in installing hole, between large reducing die 11, little reducing die 12, be also provided with packing ring 13, this packing ring 13 can guarantee that twice reducing seamlessly transits.Cooperation is supported by the cascaded surface of shoulder hole in the lower end of described fairlead 10, described large reducing die 11, little reducing die 12 are provided with large reducing die 11 chambeies and little reducing die 12 chambeies with one heart, the vertical setting of described plug 19 and upper end are fixedly connected with cope match-plate pattern 21, described plug 19 from top to bottom runs through upper mounted plate 17, portable plate 22, little reducing die 12 chambeies and large reducing die 11 chambeies successively and lower end is stretched in fairlead 10, the endoporus center superposition of the axis of this plug 19 and large reducing die 11, little reducing die 12.Described necking die also comprises material returning sleeve 18, this material returning sleeve 18 comprises material returned cylinder portion and the base portion being wholely set, these material returning sleeve 18 movable sets are on plug 19, portable plate 22 is run through in this material returned cylinder portion, little reducing die 12 chambeies are concordant with the lower surface of large reducing die 11 with large reducing die 11 chambeies and end face, and top and lower surface that described base portion is positioned at portable plate 22 coordinate with portable plate 22 upper surfaces.
The middle part of the described axis of guide 6 is also fixed with gripper shoe 8, is fixed with the dependence mould that relies on supporting steel pipe 7 in this gripper shoe 8.This dependence mould can be assisted and be relied on steel pipe 7, guarantees that it is vertical.
Orientation described in the present invention is all location positionings that necking die is put while normally working.Large and small in the present embodiment is relative, needn't go into seriously its concrete size.
Operation principle of the present invention is, this necking die is placed on the workbench of punch press, and drift and cope match-plate pattern 21 are fixing.The lower end of steel pipe 7 is inserted in lower fixed die 5, and steel pipe 7 is relying under mould auxiliary in vertical state, drift presses down, cope match-plate pattern 21 promotes lead 20 and slides, thereby portable plate 22 is vertically slided on the axis of guide 6, until fairlead 10 is enclosed within steel pipe 7 upper ends, drift continues to press down, steel pipe 7 upper ends enter into large reducing die 11 chambeies, little reducing die completes reducing in 12 chambeies, after reducing completes, drift upwards resets, when now portable plate 22 moves upward, just drive steel pipe 7 to depart from lower fixed die 5, when the base portion upper surface of material returning sleeve 18 face is encountered upper mounted plate 17, material returning sleeve 18 stops up, now, portable plate 22 is still up, now, material returning sleeve 18 starts the downward material returned of steel pipe 7, until portable plate 22 stops while contacting with material returning sleeve 18, now completed the material returned of steel pipe 7.
Claims (7)
1. a steel pipe throat mould, it is characterized in that: comprise base plate, lower membrane module, the axis of guide, portable plate, upper mounted plate, upper die component, lead and cope match-plate pattern, the described axis of guide is vertically fixed on base plate and number is at least two, fixed plate is fixed on the upper end of the axis of guide, the vertical slip cap of described portable plate is loaded on the axis of guide and between base plate and upper mounted plate, described lead vertically slides and runs through upper mounted plate and be fixedly connected with portable plate, and described cope match-plate pattern is fixed on the upper end of lead, described lower membrane module comprises the lower die-sleeve that is fixed on base plate, is installed on the lower fixed die in lower die-sleeve, is fixed on the lower die cap that compresses lower fixed die on lower die-sleeve, and counterdie covers and is provided with the axial hole of assigning that steel pipe inserts lower fixed die of being convenient to, described upper die component comprises Upper Die-sleeve, large reducing die, little reducing die, core, fairlead, described Upper Die-sleeve be fixed on portable plate lower surface and with lower die-sleeve center superposition, this Upper Die-sleeve is provided with for installing large, the axial installing hole of little reducing die and the patchhole for facilitating steel pipe to insert, the diameter of described installing hole is greater than the diameter of patchhole and the formation shoulder hole that is interconnected, described fairlead, large reducing die, little reducing die is from bottom to top stacked and placed in installing hole, cooperation is supported by the cascaded surface of shoulder hole in the lower end of described fairlead, described large reducing die, little reducing die is provided with large reducing die cavity and little reducing die cavity with one heart, the vertical setting of described plug and upper end are fixedly connected with cope match-plate pattern, described plug from top to bottom runs through upper mounted plate successively, portable plate, little reducing die cavity and large reducing die cavity and lower end are stretched in fairlead, the axis of this plug and large reducing die, the endoporus center superposition of little reducing die.
2. a kind of steel pipe throat mould as claimed in claim 1, it is characterized in that: described necking die also comprises material returning sleeve, this material returning sleeve comprises material returned cylinder portion and the base portion being wholely set, this material returning sleeve movable set is on plug, portable plate is run through in this material returned cylinder portion, little reducing die cavity is concordant with the lower surface of large reducing die with large reducing die cavity and end face, and top and lower surface that described base portion is positioned at portable plate coordinate with portable plate upper surface.
3. a kind of steel pipe throat mould as claimed in claim 2, is characterized in that: the middle part of the described axis of guide is also fixed with gripper shoe, is fixed with the dependence mould that relies on supporting steel pipe in this gripper shoe.
4. a kind of steel pipe throat mould as claimed in claim 3, it is characterized in that: described necking die also comprises lower location-plate, this lower location-plate is installed on base plate upper surface, on this lower location-plate, arranges and is enclosed within the axis of guide locating hole of locating on the axis of guide, the lower die-sleeve locating hole that is enclosed within lower die-sleeve outside fix.
5. a kind of steel pipe throat mould as claimed in claim 4, it is characterized in that: described necking die also comprises middle location-plate, in this, location-plate is installed on the lower surface of portable plate, described portable plate is slidably mounted on the axis of guide by linear bearing, is provided with the Upper Die-sleeve locating hole that is enclosed within the straight bearing locating hole to bearing outside fix, is sleeved on Upper Die-sleeve outside fix on described middle location-plate.
6. a kind of steel pipe throat mould as claimed in claim 5, is characterized in that: between described upper reducing die and lower reducing die, be provided with packing ring.
7. a kind of steel pipe throat mould as claimed in claim 6, it is characterized in that: described necking die also comprises location-plate, on this, location-plate is installed on the lower surface of upper mounted plate, arranges and be enclosed within the axis of guide locating hole of locating on the axis of guide, the plug locating hole that is enclosed within mandrel outer location on this on location-plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300532.7A CN104043741B (en) | 2014-06-27 | 2014-06-27 | A kind of steel pipe throat mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410300532.7A CN104043741B (en) | 2014-06-27 | 2014-06-27 | A kind of steel pipe throat mould |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104043741A true CN104043741A (en) | 2014-09-17 |
| CN104043741B CN104043741B (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410300532.7A Active CN104043741B (en) | 2014-06-27 | 2014-06-27 | A kind of steel pipe throat mould |
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| CN (1) | CN104043741B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104475598A (en) * | 2014-11-25 | 2015-04-01 | 镇江利奥排气技术有限公司 | Processing device for high-precision pipe fitting molding tool |
| CN104965944A (en) * | 2015-06-19 | 2015-10-07 | 上海纳铁福传动***有限公司 | Method for designing shaft pipe necking mould |
| CN105170813A (en) * | 2015-07-14 | 2015-12-23 | 上海金众汽车配件有限公司 | Three-section flaring die for automobile steering column |
| CN105170803A (en) * | 2015-10-14 | 2015-12-23 | 张家港保税区亚鑫精密制管有限公司 | Pipe flaring die frame |
| CN105170815A (en) * | 2015-10-14 | 2015-12-23 | 张家港保税区亚鑫精密制管有限公司 | Necking-down tool for steel pipe |
| CN111360168A (en) * | 2020-02-20 | 2020-07-03 | 上海航天精密机械研究所 | Hydraulic progressive necking device with multiple communicating parts and rubber bag |
| CN117086164A (en) * | 2023-10-18 | 2023-11-21 | 万向钱潮股份公司 | New energy automobile-used bumper shock absorber throat material returned device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104475598A (en) * | 2014-11-25 | 2015-04-01 | 镇江利奥排气技术有限公司 | Processing device for high-precision pipe fitting molding tool |
| CN104965944A (en) * | 2015-06-19 | 2015-10-07 | 上海纳铁福传动***有限公司 | Method for designing shaft pipe necking mould |
| CN104965944B (en) * | 2015-06-19 | 2018-04-03 | 上海纳铁福传动***有限公司 | The design method of central siphon necking die |
| CN105170813A (en) * | 2015-07-14 | 2015-12-23 | 上海金众汽车配件有限公司 | Three-section flaring die for automobile steering column |
| CN105170803A (en) * | 2015-10-14 | 2015-12-23 | 张家港保税区亚鑫精密制管有限公司 | Pipe flaring die frame |
| CN105170815A (en) * | 2015-10-14 | 2015-12-23 | 张家港保税区亚鑫精密制管有限公司 | Necking-down tool for steel pipe |
| CN111360168A (en) * | 2020-02-20 | 2020-07-03 | 上海航天精密机械研究所 | Hydraulic progressive necking device with multiple communicating parts and rubber bag |
| CN111360168B (en) * | 2020-02-20 | 2022-02-08 | 上海航天精密机械研究所 | Hydraulic progressive necking device with multiple communicating parts and rubber bag |
| CN117086164A (en) * | 2023-10-18 | 2023-11-21 | 万向钱潮股份公司 | New energy automobile-used bumper shock absorber throat material returned device |
| CN117086164B (en) * | 2023-10-18 | 2023-12-29 | 万向钱潮股份公司 | New energy automobile-used bumper shock absorber throat material returned device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104043741B (en) | 2015-11-25 |
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Address after: 215600 No. 3, Taiwan Road, Zhangjiagang Free Trade Zone, Suzhou, Jiangsu Patentee after: Jiangsu Yaxin Precision Technology Co.,Ltd. Address before: 215634 No. 3, Taiwan Road, Zhangjiagang Free Trade Zone, Suzhou, Jiangsu Patentee before: ZHANGJIAGANG BONDED ZONE YAXIN PRECISION PIPE MAKING Co.,Ltd. |
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