CN101701614A - Manufacturing technology of integrated oil storage cylinder and extension mould - Google Patents

Manufacturing technology of integrated oil storage cylinder and extension mould Download PDF

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Publication number
CN101701614A
CN101701614A CN200910164275A CN200910164275A CN101701614A CN 101701614 A CN101701614 A CN 101701614A CN 200910164275 A CN200910164275 A CN 200910164275A CN 200910164275 A CN200910164275 A CN 200910164275A CN 101701614 A CN101701614 A CN 101701614A
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CN
China
Prior art keywords
die
ring
mould
extending
punch
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CN200910164275A
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Chinese (zh)
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CN101701614B (en
Inventor
金红
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四川宁江山川机械有限责任公司
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Publication of CN101701614A publication Critical patent/CN101701614A/en
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Publication of CN101701614B publication Critical patent/CN101701614B/en

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Abstract

The invention discloses a manufacturing technology of an integrated oil storage cylinder and an extension mould, belonging to the machining technology and the mould technical field. The technology comprises the following steps: shearing bar stock, cupping blank, primary extending, leveling opening, annealing, pickling, phosphating, saponifying, secondary extending, third extending, leveling opening, grinding excircle, closing up, leveling overall length, chamfering, burring and machining a circular groove; the mould comprises an upper die base (11) and a lower die base (12), wherein, the upper die base (11) is connected with a stamping terrace die (2) through an upper die pressing ring (1) and an upper die quilt cap (13); the lower die base (12) is provided with an unloading ring (6), a lower die (5), a lower pressing ring (8), an upper die (4), an upper pressing ring (9) and a locating ring (3) from the bottom to top; the lower die (12) is connected with a lower quilt cap (10); and a discharging ring (6) is composed of three isotonic arc blocks and two extension springs (7) embedded in the groove of the external ring of the discharging ring. The manufacturing technology of the invention is suitable for manufacturing oil storage cylinders in shock absorbers for automobiles.

Description

Integral type fuel tank preparation process and Stretching die
Affiliated technical field
The present invention relates to the preparation process of fuel tank in the vibration damper, especially integral type fuel tank preparation process and Stretching die belong to mechanical processing technique and technical field of mold.
Background technique
The critical component of automobile absorber is a fuel tank, and what adopt at present is the welding type fuel tank, is about to cylindrical shell and is welded with bottom after the processing of closing up on the closing in machine again.The shortcoming that exists is, the coaxality of the bottom conical surface and cylindrical shell is wayward, and weld strength is difficult to guarantee, has the hidden danger of leaking gas.
Summary of the invention
In order to overcome the deficiency of existing welding type fuel tank, the invention provides a kind of preparation process and corresponding mould of integral type fuel tank.
The technical solution adopted for the present invention to solve the technical problems is: integral type fuel tank preparation process, and this technology is carried out according to following steps: cut the billot → blanking cup → mouth → annealing → pickling-phosphatization-saponification → secondary of once extending → put down to extend → three the mouth → cylindrical grinding → closing in of extending → put down → flat length overall → chamferings, deburring → car circular groove; The blanking cup adopts cup mould and press machine; Once extend, secondary is extended, extend for three times and adopt corresponding mould and oil hydraulic press respectively; Annealing furnace is adopted in annealing, and temperature is 700-780 ℃, time 20-40min; Close up and adopt closing-in mould and closing in machine.
Integral type fuel tank Stretching die comprises punch set 11 and die set 12, and punch set 11 is connected by cap 13 through patrix trim ring 1, patrix with punching press punch 2; Be provided with discharging circle 6, lower cavity die 5 and lower clamping ring 8, upper cavity die 4 in the die set 12 from top to bottom and go up trim ring 9, positioning ring 3, be connected with down on the die set 12 by cap 10, discharging circle 6 is made of two extension springs 7 that embed in the circular arc piece of three five equilibriums and its outer ring groove.
The invention has the beneficial effects as follows, adopt fuel tank intensity height, the tightness of this technology and Mold Making good, dimensional accuracy is high, quality of processing height, stock utilization height.Save operation, the work efficiency height is finished two-step stretch in one procedure, reduced annealing operation.
Description of drawings
Fig. 1 is through the Workpiece structure schematic representation of blanking cup working procedure processing among the present invention;
Fig. 2 is through the Workpiece structure schematic representation of the working procedure processing of once extending among the present invention;
Fig. 3 be among the present invention in secondary is extended the Workpiece structure schematic representation of once step stretching;
Fig. 4 is the Workpiece structure schematic representation that two steps stretched in secondary is extended among the present invention;
Fig. 5 be among the present invention in three times are extended the Workpiece structure schematic representation of once step stretching;
Fig. 6 is the Workpiece structure schematic representation that two steps stretched in three times are extended among the present invention;
Fig. 7 is through the Workpiece structure schematic representation of closing in working procedure processing among the present invention;
Fig. 8 is a blanking cup mould structure schematic representation among the present invention;
Fig. 9 is Stretching die structural representation among the present invention;
Figure 10 is secondary Stretching die among the present invention, three Stretching die structural representations;
Figure 11 is a closing-in mould structural representation among the present invention.
Component and numbering among the figure:
Fig. 8:
The 1-die shank, 2-punch set, 3-jacking block, the concavo-convex mould of 4-, 5-unloading board, 6-die, 7-punch, 8-pressed edge ring, 9-packing ring, 10-die set.
Fig. 9:
1-punch set, the last trim ring of 2-, 3-punch, 4-patrix be by cap, and 5-die set, 6-counterdie be by cap, 7-positioning ring, 8-die, 9-discharging circle, 10-extension spring, 11-trim ring.
Figure 10:
1-patrix trim ring, 2-punching press punch, the 3-positioning ring, the 4-upper cavity die, the 5-lower cavity die, 6-discharging circle, the 7-extension spring, 8-lower clamping ring, the last trim ring of 9-, 10-counterdie be by cap, and 11-punch set, 12-die set, 13-patrix be by cap, the 14-workpiece.
Figure 11:
1-chuck assembly, 2-axle core, 3-die assembly.
Embodiment
The present invention is further described below in conjunction with drawings and Examples.
Integral type fuel tank preparation process, this technology is carried out according to following steps: cut the billot → blanking cup → mouth → annealing → pickling-phosphatization-saponification → secondary of once extending → put down to extend → three the mouth → cylindrical grinding → closing in of extending → put down → flat length overall → chamferings, deburring → car circular groove; The blanking cup adopts cup mould and press machine; Once extend, secondary is extended, extend for three times and adopt corresponding mould and oil hydraulic press respectively; Annealing furnace is adopted in annealing, and temperature is 700-780 ℃, time 20-40min; Close up and adopt closing-in mould and closing in machine.
The cupping ductility value m1 of blanking cup is 0.52, and the cupping ductility value m2 that once extends is 0.78.Secondary extends, extending for three times was for two steps and extends, and the step of two during secondary is extended, cupping ductility value m3 was 0.85, and m4 is 0.63; In extending for three times two step, cupping ductility value m5 was 0.72, and m6 is 0.77.Above-mentioned cupping ductility value can guarantee that the crack does not appear in the workpiece work in-process.
Through the Workpiece structure of blanking cup working procedure processing as shown in Figure 1, through the Workpiece structure of the working procedure processing of once extending as shown in Figure 2, extend the Workpiece structure of operation (two-step stretch) processing shown in Fig. 3,4 through secondary, through the Workpiece structure of three operations of extending (two-step stretch) processing shown in Fig. 5,6, as shown in Figure 7 through the Workpiece structure of closing in working procedure processing.
Cutting billot cuts out with guillotine shear according to design size.Ping Kou, flat length overall, chamfering, deburring, car circular groove carry out on engine lathe; Cylindrical grinding carries out on centerless grinding machine; Solution.Annealing furnace is adopted in annealing, and temperature is controlled at 770 ℃, and time 30min is placed on natural cooling in the sylphon.Pickling-phosphatization-saponification is in order to remove annealing back at the patina that workpiece surface forms, and makes surface attachment phosphatization, saponification layer and polishes, and is beneficial to and extends.
Blanking cup mould as shown in Figure 8.This mould is a closed back state.Billot is placed on location between die 6 and the unloading board 5, punch-die 4 moves downward and 6 pairs of billot stamping-outs of die, continue downwards billot to be drawn into cylindrical work pieces with punch 7, unloading board 5 unloads workpiece from punch-die 4, jacking block 3 can slide in punch-die 4 endoporus, die 6 has packing ring 9, the shoulder pole of adorning in pattern handle 1 hole of beating on bar and the punch press withdraws from workpiece from the endoporus of punch-die 4, pressed edge ring 8 with punch-die 4 with Work-sheet pressing to pressing down, and on punch 7, slide, by the push rod of dress and the bullet ejection device below the punch press in the die set 10 workpiece is withdrawed from from punch 7.
A Stretching die as shown in Figure 9.This mould is a closed back state.Workpiece is placed on location in the positioning ring 7, punch 3 moves downward and contact workpiece, drive workpiece and through die 8 workpiece is stretched downwards, discharging circle 9 is made of two extension springs 10 that embed in the circular arc piece of three five equilibriums and its outer ring groove, can stretch in the radial direction, under the effect of extension spring 10, discharging circle 9 radial dilatation, during backhaul, punch 3 moves upward, the port of workpiece is blocked by the discharging circle 9 of radial contraction, and workpiece is drawn off from the mould bottom.
Integral type fuel tank Stretching die comprises punch set 11 and die set 12, and punch set 11 is connected by cap 13 through patrix trim ring 1, patrix with punching press punch 2; Be provided with discharging circle 6, lower cavity die 5 and lower clamping ring 8, upper cavity die 4 in the die set 12 from top to bottom and go up trim ring 9, positioning ring 3, be connected with down on the die set 12 by cap 10, discharging circle 6 is made of two extension springs 7 that embed in the circular arc piece of three five equilibriums and its outer ring groove.As Figure 10.
Secondary is extended and three operations of extending all adopt above-mentioned Stretching die, as shown in figure 10.Die size is according to the workpiece size design of corresponding operation.
The secondary operation of extending is:
The cylindrical work pieces 14 of the operation punching press of once extending is placed positioning ring 3 location, the termination of punching press punch 2 contacted with the tube end of workpiece 14, when punching press punch 2 moves downward, the straight wall of workpiece 14 is through the extruding of upper cavity die 4, realizes once step stretching, when the straight wall of workpiece 14 arrives the less lower cavity die 5 of internal diameter, be extruded again once, realize the stretching of two steps, workpiece 14 is elongated, straight wall attenuation.Workpiece 14 process discharging circles 6, under the effect of extension spring 7, discharging circle 6 radial dilatation, workpiece 14 is moved down into Fig. 1 position.During backhaul, punching press punch 2 moves upward, and the port of workpiece 14 is blocked by the discharging circle 6 of radial contraction, and workpiece 14 is drawn off from the bottom.
Extend for three times and extend identically, repeat no more with above-mentioned secondary.
Closing-in mould as shown in figure 11.
Chuck assembly 1 is two semicircle splits, during work workpiece is placed in the lower semi-circle split, oil cylinder drives the upper semi-circle split and moves downward Work-sheet pressing, right then oil cylinder drive die assembly 3 and mandrel 2 are to left movement, die assembly 3 contact workpiece oral areas also close up to be shaped workpiece, with position limit switch control closing in length, close up finish after mandrel 2 and 3 backhauls of die assembly, chuck assembly 1 backhaul is then proofreaied and correct hole dimension in the workpiece.

Claims (4)

1. integral type fuel tank preparation process, it is characterized in that this technology is carried out according to following steps: cut the billot → blanking cup → mouth → annealing → pickling-phosphatization-saponification → secondary of once extending → put down to extend → three the mouth → cylindrical grinding → closing in of extending → put down → flat length overall → chamferings, deburring → car circular groove; The blanking cup adopts cup mould and press machine; Once extend, secondary is extended, extend for three times and adopt corresponding mould and oil hydraulic press respectively; Annealing furnace is adopted in annealing, and temperature is 700-780 ℃, time 20-40min; Close up and adopt closing-in mould and closing in machine.
2. integral type fuel tank preparation process according to claim 1 is characterized in that the cupping ductility value m1 of described blanking cup is 0.52, and the cupping ductility value m2 that once extends is 0.78.
3. integral type fuel tank preparation process according to claim 1 is characterized in that, described secondary extends, extending for three times was for two steps and extends, and the step of two during secondary is extended, cupping ductility value m3 was 0.85, and m4 is 0.63; In extending for three times two step, cupping ductility value m5 was 0.72, and m6 is 0.77.
4. an integral type fuel tank Stretching die comprises punch set (11) and die set (12), it is characterized in that, punch set (11) is connected by cap (13) through patrix trim ring (1), patrix with punching press punch (2); Be provided with discharging circle (6), lower cavity die (5) and lower clamping ring (8), upper cavity die (4) in the die set (12) from top to bottom and go up trim ring (9), positioning ring (3), be connected with down on the die set (12) by cap (10), discharging circle (6) is made of two extension springs (7) that embed in the circular arc piece of three five equilibriums and its outer ring groove.
CN2009101642758A 2009-08-27 2009-08-27 Manufacturing technology of integrated oil storage cylinder and extension mould CN101701614B (en)

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CN2009101642758A CN101701614B (en) 2009-08-27 2009-08-27 Manufacturing technology of integrated oil storage cylinder and extension mould

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Application Number Priority Date Filing Date Title
CN2009101642758A CN101701614B (en) 2009-08-27 2009-08-27 Manufacturing technology of integrated oil storage cylinder and extension mould

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CN101701614B CN101701614B (en) 2011-10-05

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102169971A (en) * 2011-03-28 2011-08-31 慈晟 Metal shell of battery and preparation method thereof
CN102363181A (en) * 2011-11-07 2012-02-29 隆昌山川精密焊管有限责任公司 Die for punching chamfers
CN102641938A (en) * 2012-05-14 2012-08-22 昆山电子羽电业制品有限公司 Stamping die for stamping parts
CN103659198A (en) * 2013-12-18 2014-03-26 张家口时代橡胶制品有限公司 Wagon bearing sealing cover cold stamping process and stamping dies
CN104028953A (en) * 2013-12-27 2014-09-10 慈溪市佳晶电子有限公司 Production process of jacket
CN104492951A (en) * 2014-12-03 2015-04-08 柳州通为机械有限公司 Reinforcement drawing die device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102169971A (en) * 2011-03-28 2011-08-31 慈晟 Metal shell of battery and preparation method thereof
CN102363181A (en) * 2011-11-07 2012-02-29 隆昌山川精密焊管有限责任公司 Die for punching chamfers
CN102641938A (en) * 2012-05-14 2012-08-22 昆山电子羽电业制品有限公司 Stamping die for stamping parts
CN103659198A (en) * 2013-12-18 2014-03-26 张家口时代橡胶制品有限公司 Wagon bearing sealing cover cold stamping process and stamping dies
CN103659198B (en) * 2013-12-18 2015-12-09 张家口时代橡胶制品有限公司 Railway truck bearing seal closure cold punching die
CN104028953A (en) * 2013-12-27 2014-09-10 慈溪市佳晶电子有限公司 Production process of jacket
CN104028953B (en) * 2013-12-27 2016-03-16 慈溪市佳晶电子有限公司 A kind of production technology of chuck
CN104492951A (en) * 2014-12-03 2015-04-08 柳州通为机械有限公司 Reinforcement drawing die device

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