CN201693016U - Cold-extrusion die of double-head pipe joint - Google Patents
Cold-extrusion die of double-head pipe joint Download PDFInfo
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- CN201693016U CN201693016U CN2010201503931U CN201020150393U CN201693016U CN 201693016 U CN201693016 U CN 201693016U CN 2010201503931 U CN2010201503931 U CN 2010201503931U CN 201020150393 U CN201020150393 U CN 201020150393U CN 201693016 U CN201693016 U CN 201693016U
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Abstract
The utility model discloses a cold-extrusion die of a double-head pipe joint, which comprises an upper fixed plate (4), an upper die sleeve (5), a middle die sleeve (6), a lower die sleeve (7) and a lower fixed plate (8) which are sequentially arranged from top to bottom, wherein the cross section of an inner hole of the middle die sleeve (6) is in an octagonal plum-blossom shape; the cold-extrusion die of the double-head pipe joint also comprises two supporting plates (11), wherein the two supporting plates (11) are respectively arranged at both sides of the upper die sleeve (5), the middle die sleeve (6) and the lower die sleeve (7) and are fixed at both sides of the upper fixed plate (4); and the upper die sleeve (5) and the middle die sleeve (6) both slide with the two supporting plates (11) and are connected with the two supporting plates (11), an ejection device I (18) is arranged between the lower fixed plate (8) and the lower die sleeve (7), and an ejection device II (19) is arranged between the middle die sleeve (6) and the upper die sleeve (5). The cold-extrusion die has easy demoulding and high working efficiency.
Description
Technical field
The utility model relates to a kind of cold extrusion die, relates to a kind of cold extrusion die of double-ended pipe joint or rather.
Background technology
Outer silk double-ended pipe joint is used very extensive in industry.Add man-hour during outer silk double-ended pipe joint, earlier raw material are processed to form the double-ended pipe joint semi-finished product, again the double-ended pipe joint semi-finished product are carried out external screw thread and be processed to form finished product.The production technology of present existing double-ended pipe joint has two kinds: one, carry out founding earlier and be cast as tubular blank, and then tubular blank is carried out machining become double-ended pipe joint.There is following defective in the mode that this kind produced double-ended pipe joint: the blank unnecessary material of in machining becomes the process of double-ended pipe joint, will pruning, and machining is consuming time many, influences production efficiency; Occur defectives such as sand holes, slag inclusion easily when raw material carry out the founding casting in addition, thereby influence product quality; Two, directly bigbore steel pipe is processed, raw-material like this waste is quite big, and machining is consuming time many, thereby has increased production cost, has reduced economic benefit.
Comprehensive above-mentioned reason, people consider to produce double-ended pipe joint with the mode of extruding, but the double-ended pipe joint that hot extrusion is produced not only change in size is bigger, and the surface has one deck oxide skin, can not directly carry out external screw thread processing, also need be through turning processing, production process is still more loaded down with trivial details like this.Therefore, in order to ensure the quality of products, to reduce the operation people and adopt the cold-stamped mode to produce double-ended pipe joint.And the cold extrusion die of prior art comprises die shank, cope match-plate pattern, upper die plate, upper mounted plate, Upper Die-sleeve, middle die sleeve, lower die-sleeve, bottom plate, counterdie backing plate and lower bolster.Described counterdie backing plate is fixed on the described lower bolster, and described bottom plate is fixed on the described counterdie backing plate; Described upper mounted plate, Upper Die-sleeve, middle die sleeve, lower die-sleeve from down under be arranged in order and be placed on the described bottom plate; Described upper die plate is fixed on the described upper mounted plate, and described cope match-plate pattern is fixed on the described upper die plate; The combination of lumens of described Upper Die-sleeve, middle die sleeve and lower die-sleeve forms die cavity; Described bottom plate is provided with lower punch; the upper end of described lower punch is positioned at die cavity, and described upper mounted plate is provided with punch, and the described punch of going up is provided with through hole; the described punch sliding fit of going up is in described die cavity, and upward punch case is combined in outside the described lower punch.Though the cold extrusion die of this kind structure can be processed double-ended pipe joint, the suitable difficulty of lower die-sleeve, middle die sleeve and the Upper Die-sleeve demoulding after the moulding, even can't the demoulding, thereby cause inefficiency.
The utility model content
The technical problems to be solved in the utility model is that the cold extrusion die of the double-ended pipe joint of a kind of easy demoulding, high efficiency is provided.
Technical solution of the present utility model is, a kind of cold extrusion die with double-ended pipe joint of following structure is provided, it comprises upper mounted plate, Upper Die-sleeve, middle die sleeve, lower die-sleeve and the bottom plate that is arranged in order from top to bottom, and the cross section of the endoporus of described middle die sleeve is anistree plum blossom shape; It also comprises two supporting plates, and described two supporting plates are located at the both sides of Upper Die-sleeve, middle die sleeve and lower die-sleeve respectively, and are fixed on the both sides of upper mounted plate; Described Upper Die-sleeve all slides with two supporting plates with middle die sleeve and is connected, and is provided with liftout attachment I between described bottom plate and the lower die-sleeve, is provided with liftout attachment II between described middle die sleeve and the Upper Die-sleeve.
After adopting above structure, the cold extrusion die of the utility model double-ended pipe joint compared with prior art, have the following advantages: owing to be provided with liftout attachment I between the bottom plate of the cold extrusion die of the utility model double-ended pipe joint and the lower die-sleeve, be provided with liftout attachment II between die sleeve and the Upper Die-sleeve in described, when carrying out the demoulding after the double-ended pipe joint moulding, described bottom plate can upwards promote under the drive of die shank, described supporting plate also upwards promotes under the drive of bottom plate, and the pressure that supporting plate can make bottom plate bear in the process that upwards promotes reduces, when the pressure that described bottom plate bears reduces, liftout attachment I can upwards promote lower die-sleeve, making it closely follow middle die sleeve moves upward, and lower die-sleeve can separate with bottom plate in the process that moves upward, at this moment, will produce looseningly between double-ended pipe joint and the lower punch, make double-ended pipe joint break away from lower punch; After double-ended pipe joint broke away from lower punch, supporting plate still upwards promoted continuing, and when rising to certain altitude, the liftout attachment I thrust to lower die-sleeve and be zero, middle die sleeve can separate with lower die-sleeve, and at this moment, double-ended pipe joint is finished the knockout course of lower die-sleeve; In die sleeve with after lower die-sleeve separates, because gravity, again since described Upper Die-sleeve and described supporting plate be slidingly connected, die sleeve and described supporting plate are slidingly connected in described, described Upper Die-sleeve and middle die sleeve can fall downwards simultaneously, at this moment, Upper Die-sleeve can separate with upper mounted plate, when Upper Die-sleeve separates with upper mounted plate, described liftout attachment II can separate Upper Die-sleeve and middle die sleeve, at this moment, double-ended pipe joint is finished the knockout course of Upper Die-sleeve, and double-ended pipe joint finally rests on the middle die sleeve, as long as utilize instrument to beat the knockout course that double-ended pipe joint just can be finished middle die sleeve gently at last, double-ended pipe joint just can be finished production, makes the double-ended pipe joint demoulding quite easy, thereby can increase work efficiency.
As a kind of improvement of the present utility model, the both sides of described Upper Die-sleeve all are fixed with pin I, are equipped with mounting hole I on described two supporting plates, and described pin I sliding fit is in the mounting hole I of correspondence; The both sides of die sleeve are equipped with pin II in described, are equipped with mounting hole II on described two supporting plates, and described pin II sliding fit is in the mounting hole II of correspondence.This kind project organization is simple, realizes easily.
As another kind of improvement the of the present utility model, described liftout attachment I comprises many counterdie springs and is arranged on the corresponding counterdie blind hole of the quantity with the counterdie spring of lower die-sleeve lower end, the upper end of described every counterdie spring is against the inner top surface of corresponding counterdie blind hole, the lower end of described counterdie spring is against on the bottom plate, and this lower end is spacing on bottom plate.Because liftout attachment I comprises many counterdie springs, the elastic force by the counterdie spring makes double-ended pipe joint break away from lower punch, can realize automatic demoulding; Because the lower end of described counterdie spring is spacing on described bottom plate, makes the counterdie spring in the process of work, can not be bound to the mould outside and go again.
Also has a kind of improvement as of the present utility model, described liftout attachment II comprises many patrix springs and is arranged on the corresponding patrix blind hole of the quantity with the patrix spring of Upper Die-sleeve lower end, the upper end of every patrix spring be against the inner top surface of corresponding patrix blind hole, the lower end of described patrix spring is against on the middle die sleeve, and this lower end is spacing on middle die sleeve.Because liftout attachment II comprises many patrix springs, the elastic force by the patrix spring makes double-ended pipe joint break away from Upper Die-sleeve, can realize the automatic demoulding of Upper Die-sleeve; In described, on the die sleeve, make the patrix spring go outside in the process of work, can not being bound to mould because the lower end of described patrix spring is spacing again.
Also has a kind of improvement as of the present utility model, described upper mounted plate is provided with many upper guide posts, the die body that described Upper Die-sleeve, middle die sleeve and lower die-sleeve form is provided with guide hole, described lower end of going up guide hole is positioned on the described lower die-sleeve, and described upper guide post sliding fit is on described in the guide hole; The lower end of described upper guide post is provided with guiding.Because described upper mounted plate is provided with many upper guide posts, described upper guide post sliding fit can make the position between Upper Die-sleeve, middle die sleeve and the lower die-sleeve three more stable in described guide groove, thereby can guarantee the precision of product.The guiding of the lower end of described upper guide post plays the effect of guiding, makes upper guide post can enter guide groove smoothly.
Also have a kind of improvement as of the present utility model, it also comprises skewer pin and the skewer pin spring that is provided with radial convex loop, and the left and right sides of described lower die-sleeve is equipped with described and goes up the skewer pin-and-hole that guide hole communicates; Described skewer pin spring and bulge loop are all spacing in described skewer pin-and-hole, and an end of described skewer pin spring is against on the outer end inner wall of described skewer pin-and-hole, and the other end of described skewer pin spring is against on the bulge loop; The outer end of described skewer pin is positioned at described mounting hole I, and the inner of described skewer pin is against on the sidewall of the upper guide post that is positioned at guide hole; The two ends of described skewer pin are equipped with inclined-plane guiding, and the axial length that described skewer pin is positioned at mounting hole I is less than or equal to the distance that described bulge loop can slide at the skewer pin-and-hole.When described fixed head upwards promotes, described supporting plate and upper guide post can move upward together along with upper mounted plate, at this moment, can slide in mounting hole I in skewer pin outer end, also can slide relatively between skewer pin the inner and the upper guide post, when skewer pin outer end slided into mounting hole I bottom, lower die-sleeve can be suspended on the supporting plate under the effect of skewer pin and together move upward with supporting plate; Because described upper guide post lower end is provided with guiding, the two ends of described skewer pin are equipped with the inclined-plane guiding, when lower die-sleeve and supporting plate together move upward, the inclined-plane guiding of described skewer pin the inner contacts with the described guide edge of guide pillar down, at this moment, under the acting in conjunction on the elastic force of spring and inclined-plane, described skewer pin meeting axial channel internal motion, can promote upper guide post simultaneously moves upward, when skewer pin outer end breaks away from mounting hole I, lower bolster just no longer is subjected to the drive of supporting plate, and in this process, described skewer pin can be assisted the counterdie spring to make lower die-sleeve closely follow middle die sleeve and be moved upward.
Description of drawings
Fig. 1 is the sectional structure schematic diagram of the cold extrusion die of the utility model double-ended pipe joint.
Fig. 2 is the structure for amplifying schematic diagram of A part among Fig. 1.
Fig. 3 is the left TV structure schematic diagram of the cold extrusion die of the utility model double-ended pipe joint.
Fig. 4 be the utility model double-ended pipe joint the cold extrusion die patrix look up structural representation.
Sectional structure schematic diagram when Fig. 5 is the cold extrusion die die sinking of the utility model double-ended pipe joint.
Fig. 6 is the structural representation of anistree double-ended pipe joint.
Shown in the figure: 1, die shank, 2, cope match-plate pattern, 3, upper die plate, 4, upper mounted plate, 5, Upper Die-sleeve, 5.1, pin I, 6, middle die sleeve, 6.1, pin II, 7, lower die-sleeve, 7.1, the skewer pin-and-hole, 8, bottom plate, 9, the counterdie backing plate, 10, lower bolster, 11, supporting plate, 11.1, mounting hole I, 11.2, mounting hole II, 12, lower punch, 13, last punch, 13.1, through hole, 14, following guide pillar, 15, following guide hole, 16, upper guide post, 17, last guide hole, 18, liftout attachment I, 18.1, the counterdie spring, 18.2, the counterdie blind hole, 18.3, the counterdie spring stack, 19, liftout attachment II, 19.1, the patrix spring, 19.2, the patrix blind hole, 19.3, the patrix spring stack, 20, the skewer pin, 20.1, bulge loop, 21, skewer pin spring, 22, rubber blanket, 23, double-ended pipe joint.
The specific embodiment
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Please in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6.
The cold extrusion die of the utility model double-ended pipe joint comprises die shank 1, cope match-plate pattern 2, upper die plate 3, upper mounted plate 4, Upper Die-sleeve 5, middle die sleeve 6, lower die-sleeve 7, bottom plate 8, counterdie backing plate 9, lower bolster 10 and supporting plate 11.Described counterdie backing plate 9 is fixed on the described lower bolster 10, and described bottom plate 8 is fixed on the described counterdie backing plate 9; Described upper mounted plate 4, Upper Die-sleeve 5, middle die sleeve 6, lower die-sleeve 7 are arranged in order from top to bottom and are placed on the described bottom plate 8; Described upper die plate 3 is fixed on the upper mounted plate 4, and described cope match-plate pattern 2 is fixed on the described upper die plate 3; Described supporting plate 11 is separately fixed at the left and right sides of described upper mounted plate 4, and be close to the left and right sides of described Upper Die-sleeve 5, middle die sleeve 6 and lower die-sleeve 7, described Upper Die-sleeve 5 is slidingly connected with described supporting plate 11, and described middle die sleeve 6 is slidingly connected with described supporting plate 11.The combination of lumens of described Upper Die-sleeve 5, middle die sleeve 6 and lower die-sleeve 7 forms die cavity, and the cross section of the endoporus of described middle die sleeve 6 is anistree plum blossom shape.Described bottom plate 8 is provided with lower punch 12, described lower punch 12 upper ends are positioned at die cavity, described upper mounted plate 4 is provided with punch 13, the described punch 13 of going up is provided with through hole 13.1, described punch 13 sliding fits of going up are in described die cavity, and upward punch 13 is linked in outside the described lower punch 12.Described bottom plate 8 is provided with many following guide pillars 14, on the die body that described Upper Die-sleeve 5, middle die sleeve 6 and lower die-sleeve 7 form, be provided with guide hole 15 down accordingly with it, described guide pillar 14 sliding fits down are in described guide hole 15 down, the described upper end of guide pillar 14 down is provided with guiding, in this specific embodiment, described guide pillar 14 down is provided with four; Described upper mounted plate 4 is provided with many upper guide posts 16, the die body that described Upper Die-sleeve 5, middle die sleeve 6 and lower die-sleeve 7 form is provided with guide hole 17, described lower end of going up guide hole 17 is positioned on the described lower die-sleeve 7, described upper guide post 16 sliding fits are on described in the guide hole 17, the lower end of described upper guide post 16 is provided with guiding, in this specific embodiment, described upper guide post 16 is provided with four.Be provided with liftout attachment I 18 between described bottom plate 8 and the lower die-sleeve 7, be provided with liftout attachment II 19 between described middle die sleeve 6 and the Upper Die-sleeve 5.
Described Upper Die-sleeve 5 all slides and is connected with two supporting plates 11 with middle die sleeve 6 and is meant, the both sides of described Upper Die-sleeve 5 all are fixed with pin I 5.1, be equipped with mounting hole I 11.1 on described two supporting plates 11, described pin I 5.1 sliding fits are in the mounting hole I 11.1 of correspondence; The both sides of die sleeve 6 are equipped with pin II 6.1 in described, are equipped with mounting hole II 11.2 on described two supporting plates 11, and described pin II6.1 sliding fit is in the mounting hole II 11.2 of correspondence.When matched moulds, Upper Die-sleeve 5, middle die sleeve 6, lower die-sleeve 7 are close to successively, and sell I 5.1 all in the upper end of corresponding mounting hole I 11.1 this moment, sell II 6.1 all in the upper end of corresponding mounting hole II 11.2; During the demoulding, Upper Die-sleeve 5, middle die sleeve 6, lower die-sleeve 7 slowly separate, sell I 5.1 this moment and slide into the lower end from the upper end of corresponding mounting hole I 11.1, pin II6.1 slides into the lower end from the upper end of corresponding mounting hole II 11.2, thereby Upper Die-sleeve 5 and middle die sleeve 6 have been suspended on two supporting plates 11.
Described liftout attachment I 18 comprises many counterdie springs 18.1 and is arranged on the quantity of described lower die-sleeve 7 lower ends and the corresponding counterdie blind hole 18.2 of quantity of described counterdie spring 18.1, described bottom plate 8 is provided with counterdie spring stack 18.3, the upper end of described every counterdie spring 18.1 is against the inner top surface of described one of them counterdie blind hole 18.2, the lower end of described counterdie spring 18.3 is against on the described bottom plate 8, and the lower end of described counterdie spring 18.1 tightly is linked in outside the described counterdie spring stack 18.3, in this specific embodiment, described counterdie spring 18.1 has four.Described liftout attachment II 19 comprises many patrix springs 19.1 and is arranged on the quantity of described Upper Die-sleeve 5 lower ends and the corresponding patrix blind hole 19.2 of quantity of described patrix spring 19.1, die sleeve 6 is provided with patrix spring stack 19.3 in described, the upper end of described every patrix spring 19.1 is against the inner top surface of described one of them patrix blind hole 19.2, the lower end of described patrix spring 19.1 is against on the described middle die sleeve 6, and the lower end of described patrix spring 19.1 tightly is linked in outside the described patrix spring stack 19.3.
The cold extrusion die of the utility model double-ended pipe joint also comprises skewer pin 20 and the skewer pin spring 21 that is provided with radial convex loop 20.1, and the left and right sides of described lower die-sleeve 7 is equipped with the skewer pin-and-hole 7.1 that communicates with described upward guide hole 17; Described skewer pin spring 21 and bulge loop 20.1 are all spacing in described skewer pin-and-hole 7.1, one end of described skewer pin spring 21 is against on the inwall of outer end of described skewer pin-and-hole 7.1, the other end of described skewer pin spring 21 is against on the bulge loop 20.1, the outer end of described skewer pin 20 is positioned at described mounting hole I 11.1, and the inner of described skewer pin 20 is against on the sidewall of the upper guide post 16 that is positioned at guide hole 17; The two ends of described skewer pin 20 are equipped with the inclined-plane guiding, and the axial length that described skewer pin 20 is positioned at mounting hole I 11.1 is less than or equal to described bulge loop 20.1 can be in the distance of skewer pin-and-hole 7.1 slips.Be provided with rubber blanket 22 between described upper mounted plate 4 and the Upper Die-sleeve 5.
During use, the first step, elder generation cut off blanking with seamless steel pipe, the weight that the weight of the blank that is cut down (seamless steel pipe) equals the product 18 after cold extrusion shaped adds the weight of allowance, is converted into the volume of blank again according to the weight of the blank behind the blanking.Second the step, again the blank behind the blanking is put into die cavity, matched moulds carries out cold extrusion then, with the blank extrusion modling.The 3rd step, carry out die sinking, during die sinking, supporting plate 9 can upwards be carried under the drive of die shank 1, in the process that supporting plate 9 upwards promotes, can drive Upper Die-sleeve 5, middle die sleeve 6 and lower die-sleeve 7 and rise, in the process that lower die-sleeve 7 rises product 18 can and lower punch 8.1 produce and become flexible; When rising to certain altitude Deng supporting plate 9, upper guide post 16 will with skewer pin 20 end separating near bulge loops 20.1, at this moment, skewer pin 20 can slide to skewer pin-and-hole 7.1 directions under the effect of skewer pin spring 21, and the other end of skewer pin 20 will leave mounting hole I 11.1, at this moment, lower die-sleeve 7 just can not be subjected to the drive of supporting plate 9 again, lower die-sleeve 7 will separate with middle die sleeve 6, and this moment, product will break away from lower die-sleeve 7, finished the knockout course of lower die-sleeve 7; After lower die-sleeve 7 breaks away from supporting plate 9, described Upper Die-sleeve 5 and middle die sleeve 6 will be to the whereabouts, in this process under the effect of patrix spring 19.1, described Upper Die-sleeve 5 will separate with middle die sleeve 6, this moment, product 18 will break away from Upper Die-sleeve 5, finish the knockout course of Upper Die-sleeve 5, final products 18 are stayed on the described middle die sleeve 6; The 4th step, utilize instrument with die sleeve 6 in product 18 disengagings, finish a work period.
Claims (9)
1. the cold extrusion die of a double-ended pipe joint, it comprises upper mounted plate (4), Upper Die-sleeve (5), middle die sleeve (6), lower die-sleeve (7) and the bottom plate (8) that is arranged in order from top to bottom, it is characterized in that: the cross section of the endoporus of die sleeve (6) is anistree plum blossom shape in described; It also comprises two supporting plates (11), and described two supporting plates (11) are located at the both sides of Upper Die-sleeve (5), middle die sleeve (6) and lower die-sleeve (7) respectively, and is fixed on the both sides of upper mounted plate (4); Described Upper Die-sleeve (5) all slides with two supporting plates (11) with middle die sleeve (6) and is connected, and is provided with liftout attachment I (18) between described bottom plate (8) and the lower die-sleeve (7), is provided with liftout attachment II (19) between described middle die sleeve (6) and the Upper Die-sleeve (5).
2. the cold extrusion die of double-ended pipe joint according to claim 1, it is characterized in that: described Upper Die-sleeve (5) all slides and is connected with two supporting plates (11) with middle die sleeve (6) and is meant, the both sides of described Upper Die-sleeve (5) all are fixed with pin I (5.1), be equipped with mounting hole I (11.1) on described two supporting plates (11), described pin I (5.1) sliding fit is in the mounting hole I (11.1) of correspondence; The both sides of die sleeve (6) are equipped with pin II (6.1) in described, are equipped with mounting hole II (11.2) on described two supporting plates (11), and described pin II (6.1) sliding fit is in the mounting hole II (11.2) of correspondence.
3. the cold extrusion die of double-ended pipe joint according to claim 1, it is characterized in that: described liftout attachment I (18) comprises many counterdie springs (18.1) and is arranged on the corresponding counterdie blind hole of the quantity with counterdie spring (18.1) (18.2) of lower die-sleeve (7) lower end, the upper end of described every counterdie spring (18.1) is against the inner top surface of corresponding counterdie blind hole (18.2), the lower end of described counterdie spring (18.1) is against on the bottom plate (8), and this lower end is spacing on bottom plate (8).
4. the cold extrusion die of double-ended pipe joint according to claim 1, it is characterized in that: described liftout attachment II (19) comprises many patrix springs (19.1) and is arranged on the corresponding patrix blind hole of the quantity with patrix spring (19.1) (19.2) of Upper Die-sleeve (5) lower end, the upper end of every patrix spring (19.1) be against the inner top surface of corresponding patrix blind hole (19.2), the lower end of described patrix spring (19.1) is against on the middle die sleeve (6), and this lower end is spacing on middle die sleeve (6).
5. the cold extrusion die of double-ended pipe joint according to claim 1, it is characterized in that: described upper mounted plate (4) is provided with many upper guide posts (16), the die body that described Upper Die-sleeve (5), middle die sleeve (6) and lower die-sleeve (7) form is provided with guide hole (17), described lower end of going up guide hole (17) is positioned on the described lower die-sleeve (7), and described upper guide post (16) sliding fit is on described in the guide hole (17); The lower end of described upper guide post (16) is provided with guiding.
6. the cold extrusion die of double-ended pipe joint according to claim 1, it is characterized in that: described bottom plate (8) is provided with many following guide pillars (14), the die body that described Upper Die-sleeve (5), middle die sleeve (6) and lower die-sleeve (7) form is provided with down guide hole (15), described guide pillar (14) sliding fit down is in following guide hole (15), and the described upper end of guide pillar (14) down is provided with guiding.
7. according to the cold extrusion die of claim 1 or 2 or 3 or 4 or 5 or 6 described double-ended pipe joints, it is characterized in that: it also comprises skewer pin (20) and the skewer pin spring (21) that is provided with radial convex loop (20.1), and the left and right sides of described lower die-sleeve (7) is equipped with the skewer pin-and-hole (7.1) that communicates with described upward guide hole (17); Described skewer pin spring (21) and bulge loop (20.1) are all spacing in described skewer pin-and-hole (7.1), one end of described skewer pin spring (21) is against on the outer end inner wall of described skewer pin-and-hole (7.1), and the other end of described skewer pin spring (21) is against on the bulge loop (20.1); The outer end of described skewer pin (20) is positioned at described mounting hole I (11.1), and the inner of described skewer pin (20) is against on the sidewall of the upper guide post (16) that is positioned at guide hole (17); The two ends of described skewer pin (20) are equipped with inclined-plane guiding, and the axial length that described skewer pin (20) is positioned at mounting hole I (11.1) is less than or equal to described bulge loop (20.1) can be in the distance of skewer pin-and-hole (7.1) slip.
8. the cold extrusion die of double-ended pipe joint according to claim 3, it is characterized in that: the lower end of described counterdie spring (18.1) is spacing to be meant on bottom plate (8), described bottom plate (8) is provided with counterdie spring stack (18.3), and the lower end of described counterdie spring (18.1) tightly is linked in outside the described counterdie spring stack (18.3).
9. the cold extrusion die of double-ended pipe joint according to claim 4, it is characterized in that: the lower end of described patrix spring (19.1) is spacing to be meant on middle die sleeve (6), die sleeve (6) is provided with patrix spring stack (19.3) in described, and the lower end of described patrix spring (19.1) tightly is linked in outside the described patrix spring stack (19.3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201503931U CN201693016U (en) | 2010-03-30 | 2010-03-30 | Cold-extrusion die of double-head pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201503931U CN201693016U (en) | 2010-03-30 | 2010-03-30 | Cold-extrusion die of double-head pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201693016U true CN201693016U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201503931U Expired - Fee Related CN201693016U (en) | 2010-03-30 | 2010-03-30 | Cold-extrusion die of double-head pipe joint |
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| CN (1) | CN201693016U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791636A (en) * | 2010-03-30 | 2010-08-04 | 陆颂荫 | Cold extruding die for double-ended pipe joint |
-
2010
- 2010-03-30 CN CN2010201503931U patent/CN201693016U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101791636A (en) * | 2010-03-30 | 2010-08-04 | 陆颂荫 | Cold extruding die for double-ended pipe joint |
| CN101791636B (en) * | 2010-03-30 | 2012-01-11 | 宁波东港紧固件制造有限公司 | Cold extruding die for double-ended pipe joint |
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