CN104043741B - A kind of steel pipe throat mould - Google Patents

A kind of steel pipe throat mould Download PDF

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Publication number
CN104043741B
CN104043741B CN201410300532.7A CN201410300532A CN104043741B CN 104043741 B CN104043741 B CN 104043741B CN 201410300532 A CN201410300532 A CN 201410300532A CN 104043741 B CN104043741 B CN 104043741B
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die
plate
reducing
sleeve
axis
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CN104043741A (en
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严敏剑
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ZHANGJIAGANG FREE TRADE ZONE YAXIN AUTO PARTS TECHNOLOGY Co Ltd
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ZHANGJIAGANG FREE TRADE ZONE YAXIN AUTO PARTS TECHNOLOGY Co Ltd
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Abstract

The invention discloses a kind of steel pipe throat mould, comprise base plate, lower mold assemblies, the axis of guide, portable plate, upper mounted plate, upper die component, lead and cope match-plate pattern, between base plate and upper mounted plate, the axis of guide is installed, lead runs through upper mounted plate lower end and connects portable plate, upper end connects cope match-plate pattern, portable plate is sleeved on the axis of guide, upper die component comprises Upper Die-sleeve, large reducing die, little reducing die, plug, fairlead, Upper Die-sleeve is fixed on the lower surface of portable plate, fairlead, large reducing die, little reducing die is from bottom to top stacked and placed in installing hole, large reducing die, little reducing die is provided with large reducing die cavity and little reducing die cavity with one heart, plug is fixedly connected with cope match-plate pattern, lower end is stretched in fairlead, lower mold assemblies is fixed on base plate for installing steel pipe, this steel pipe throat mould once presses down twice reducing, can ensure that the center of upper die component and lower mold assemblies is accurately aimed at, ensure that upper die component vertically presses down, also can reduce punching machine presses stroke.

Description

A kind of steel pipe throat mould
Technical field
The present invention relates to a kind of necking die, refer to a kind of steel pipe throat mould especially.
Background technology
Automobile absorber needs to use the steel pipe that end caliber reduces for twice, so current this steel pipe throat generally adopts two cover necking dies to 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 again in the position of reducing on another little reducing die.This mode efficiency is low, and the surface of secondary reducing easy damaged first time reducing, reduces the quality of steel pipe.Also the necking die of twice reducing has once been pressed down at present, such as number of patent application is: the open text of 201310408181.7 discloses so a kind of necking die, this necking die utilizes lower mold assemblies to carry out reducing to steel pipe lower end, and this structure has defect: 1. during the operation of this necking die need steel pipe lower end to put into fairlead until upper reducing die is encountered in lower end; Fairlead is not only as guide effect, and the more important thing is that auxiliary steel pipe is vertical, therefore 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, have impact on the precision of reducing.2. whether the installation accuracy of this fairlead, die cap has influence on steel pipe equally and puts vertically, affects the precision of reducing.3. in this necking die installation process, the concentric more difficult aligning between upper die component and lower mold assemblies.4. this necking die adopts the mode discharging of upwards liftout, simultaneously because the existence of fairlead causes not only will leaving upper necking die but also needing to leave fairlead when taking out steel pipe, 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: provide a kind of steel pipe throat mould, 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, can ensure that the center of upper die component and lower mold assemblies is accurately aimed at, ensure that upper die component vertically presses down, also can reduce 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 mold assemblies, 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 to be 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 mold assemblies comprises the lower die-sleeve be fixed on base plate, the lower fixed die be installed in lower die-sleeve, is fixed on lower die cap lower die-sleeve compressing lower fixed die, counterdie cover be provided with axial be convenient to that steel pipe inserts lower fixed die assign hole, described upper die component comprises Upper Die-sleeve, large reducing die, little reducing die, plug, 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 installing hole of the axis 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, the lower end of described fairlead is supported by the cascaded surface of shoulder hole and coordinates, described large reducing die, little reducing die is provided with large reducing die cavity and little reducing die cavity with one heart, described plug is vertically arranged and upper end is 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 is stretched in fairlead, the axis of this plug and large reducing die, the endoporus center superposition of little reducing die.
As the preferred scheme of one, described necking die also comprises material returning sleeve, this material returning sleeve comprises the material returned cylinder portion and base portion that are 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 with large reducing die cavity and end face is concordant with the lower surface of large reducing die, and described base portion is positioned at the top of portable plate and lower surface coordinates with portable plate upper surface.
As the preferred scheme of one, the middle part of the described axis of guide is also fixed with gripper shoe, this gripper shoe is fixed with the dependence mould relying on supporting steel pipe.
As the preferred scheme of one, described necking die also comprises lower location-plate, and this lower location-plate is installed on base plate upper surface, this lower location-plate is arranged and is enclosed within the axis of guide locating hole that the axis of guide is located, the lower die-sleeve locating hole being enclosed within lower die-sleeve outside fix
As the preferred scheme of one, 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, described middle location-plate is provided with the Upper Die-sleeve locating hole being enclosed within the straight bearing locating hole to bearing outside fix, being sleeved on Upper Die-sleeve outside fix.
As the preferred scheme of one, between described little reducing die and large reducing die, be provided with packing ring.
As the preferred scheme of one, described necking die also comprises location-plate, and on this, location-plate is installed on the lower surface of upper mounted plate, location-plate is arranged for this and is enclosed within the axis of guide locating hole that the axis of guide is located, the plug locating hole being enclosed within mandrel outer location.
After have employed technique scheme, effect of the present invention is: 1. this necking die can realize once pressing down twice reducing equally, saves one reducing operation and mould, improves efficiency and reduce cost; 2. this necking die utilizes the axis of guide to retrain the motion of 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 mold assemblies is aimed at; 4. this lower mold assemblies just serves the effect of vertically fixing steel pipe, therefore after upper die component has pressed down reducing, after steel pipe can being proposed from lower mold assemblies when upwards running, then steel pipe is to bottom knockout, the required space up and down 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 the material returned cylinder portion and base portion that are 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 with large reducing die cavity and end face is concordant with the lower surface of large reducing die, described base portion is positioned at the top of portable plate and lower surface coordinates 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 little reducing die cavity has been run through with large reducing die cavity and lower end is concordant with the lower surface of large reducing die in material returned cylinder portion, namely by downward for the steel pipe material returned, like this, this necking die is without the need to other power drive material returning sleeve, operating process is simpler, efficiency improves further.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structure sectional 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.
Detailed description of the invention
Below by specific embodiment, the present invention is described in further detail.
As shown in Figure 1, a kind of steel pipe 7 necking die, comprise base plate 1, lower mold assemblies, 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, described lower location-plate 2 is fixed on the upper surface of base plate 1 and the axis of guide 6 locating hole is enclosed within the axis of guide 6, fixed plate 17 is fixed on the upper end of the axis of guide 6, described portable plate 22 vertically slip cap to be 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, the lower surface of portable plate 22 is provided with middle location-plate 15, described middle location-plate 15 is provided with Upper Die-sleeve 9 locating hole being enclosed within the straight bearing locating hole to bearing outside fix, being sleeved on Upper Die-sleeve 9 outside fix.The lower surface of upper mounted plate 17 is fixed with location-plate 16, location-plate 16 is arranged the axis of guide 6 locating hole being enclosed within location on the axis of guide 6, plug 19 locating hole being enclosed within plug 19 outside fix on this this.The axis of guide 6 hole locating hole on this on location-plate 16, lower location-plate 2 can complete in disposable punching press, improves the installation accuracy of the axis of guide 6, upper mounted plate 17, base plate 1, guarantees that the axis of guide 6 is vertically installed.
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 motion just drives portable plate 22 vertical motion by lead 20, also drives plug 19 vertical motion simultaneously.
Described lower mold assemblies comprises the lower die-sleeve 3 be fixed on base plate 1, the lower fixed die 5 be installed in lower die-sleeve 3, is fixed on the lower die cap 4 lower die-sleeve 3 compressing lower fixed die 5, lower die cap 4 is provided with axial be convenient to that steel pipe 7 inserts lower fixed die 5 assign hole; During use, steel pipe 7 lower end is directly inserted into the material loading just completing 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, plug, fairlead 10, described Upper Die-sleeve 9 be fixed on portable plate 22 lower surface and with lower die-sleeve 3 center superposition; This Upper Die-sleeve 9 is provided with the installing hole of the axis for installing large and small reducing die 12 and the patchhole for facilitating steel pipe 7 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 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.The lower end of described fairlead 10 is supported by the cascaded surface of shoulder hole and coordinates, described large reducing die 11, little reducing die 12 are provided with large reducing die 11 chamber and little reducing die 12 chamber with one heart, described plug 19 vertically arranges and upper end is 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 chamber and large reducing die 11 chamber 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 the material returned cylinder portion and base portion that are wholely set, this material returning sleeve 18 movable set is on plug 19, portable plate 22 is run through in this material returned cylinder portion, little reducing die 12 chamber is with large reducing die 11 chamber and end face is concordant with the lower surface of large reducing die 11, and described base portion is positioned at the top of portable plate 22 and lower surface coordinates with portable plate 22 upper surface.
The middle part of the described axis of guide 6 is also fixed with gripper shoe 8, this gripper shoe 8 is fixed with the dependence mould relying on supporting steel pipe 7.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 that the position that necking die is put when normally working is determined.Large and small in the present embodiment is relative, need not go into seriously its concrete size.
Operation principle of the present invention is, is placed on the workbench of punch press by this necking die, and drift and cope match-plate pattern 21 are fixed.The lower end of steel pipe 7 is inserted in lower fixed die 5, and steel pipe 7 rely on mould auxiliary under be in vertical state, drift presses down, cope match-plate pattern 21 promotes lead 20 and slides, thus portable plate 22 is vertically slided on the axis of guide 6, until fairlead 10 is enclosed within steel pipe 7 upper end, drift continues to press down, steel pipe 7 upper end enters into large reducing die 11 chamber, reducing is completed in little reducing die 12 chamber, after reducing completes, drift upwards resets, steel pipe 7 is just driven to depart from lower fixed die 5 when now portable plate 22 moves upward, when upper mounted plate 17 is encountered in the face, base portion upper surface of material returning sleeve 18, material returning sleeve 18 stops up, now, portable plate 22 is still up, now, material returning sleeve 18 starts steel pipe 7 material returned downwards, until stop when portable plate 22 contacts with material returning sleeve 18, now complete the material returned of steel pipe 7.

Claims (6)

1. a steel pipe throat mould, it is characterized in that: comprise base plate, lower mold assemblies, 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 to be 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 mold assemblies comprises the lower die-sleeve be fixed on base plate, the lower fixed die be installed in lower die-sleeve, is fixed on lower die cap lower die-sleeve compressing lower fixed die, counterdie cover be provided with axial be convenient to that steel pipe inserts lower fixed die assign hole, described upper die component comprises Upper Die-sleeve, large reducing die, little reducing die, plug, 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 installing hole of the axis 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, the lower end of described fairlead is supported by the cascaded surface of shoulder hole and coordinates, described large reducing die, little reducing die is provided with large reducing die cavity and little reducing die cavity with one heart, described plug is vertically arranged and upper end is 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 is stretched in fairlead, the axis of this plug and large reducing die, the endoporus center superposition of little reducing die, described necking die also comprises material returning sleeve, this material returning sleeve comprises the material returned cylinder portion and base portion that are 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 with large reducing die cavity and end face is concordant with the lower surface of large reducing die, described base portion is positioned at the top of portable plate and lower surface coordinates with portable plate upper surface.
2. a kind of steel pipe throat mould as claimed in claim 1, is characterized in that: the middle part of the described axis of guide is also fixed with gripper shoe, this gripper shoe is fixed with the dependence mould relying on supporting steel pipe.
3. a kind of steel pipe throat mould as claimed in claim 2, it is characterized in that: described necking die also comprises lower location-plate, this lower location-plate is installed on base plate upper surface, this lower location-plate is arranged and is enclosed within the axis of guide locating hole that the axis of guide is located, the lower die-sleeve locating hole being enclosed within lower die-sleeve outside fix.
4. a kind of steel pipe throat mould as claimed in claim 3, 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, described middle location-plate is provided with the Upper Die-sleeve locating hole being enclosed within the straight bearing locating hole to bearing outside fix, being sleeved on Upper Die-sleeve outside fix.
5. a kind of steel pipe throat mould as claimed in claim 4, is characterized in that: be provided with packing ring between described little reducing die and large reducing die.
6. a kind of steel pipe throat mould as claimed in claim 5, 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, location-plate is arranged for this and is enclosed within the axis of guide locating hole that the axis of guide is located, the plug locating hole being enclosed within mandrel outer location.
CN201410300532.7A 2014-06-27 2014-06-27 A kind of steel pipe throat mould Active CN104043741B (en)

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Families Citing this family (6)

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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
CN104965944B (en) * 2015-06-19 2018-04-03 上海纳铁福传动系统有限公司 The design method of central siphon necking die
CN105170813B (en) * 2015-07-14 2017-05-03 上海金众汽车配件有限公司 Three-section flaring die for automobile steering column
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
CN105170803B (en) * 2015-10-14 2017-01-25 张家港保税区亚鑫精密制管有限公司 Pipe flaring die frame
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

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CN202045273U (en) * 2011-04-11 2011-11-23 南阳淅减汽车减振器有限公司 Vibration damper oil storage cylinder double-end necking die
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