CN102019336A - Die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates - Google Patents

Die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates Download PDF

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Publication number
CN102019336A
CN102019336A CN 201010545110 CN201010545110A CN102019336A CN 102019336 A CN102019336 A CN 102019336A CN 201010545110 CN201010545110 CN 201010545110 CN 201010545110 A CN201010545110 A CN 201010545110A CN 102019336 A CN102019336 A CN 102019336A
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CN
China
Prior art keywords
forging
die
movable wing
cut
impression
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CN 201010545110
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Chinese (zh)
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CN102019336B (en
Inventor
钱少伦
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宝鼎重工股份有限公司
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Priority to CN 201010545110 priority Critical patent/CN102019336B/en
Publication of CN102019336A publication Critical patent/CN102019336A/en
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Abstract

The invention relates to a die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates and comprises the steps of: in dependence on the die forging weight of a petroleum drilling machine elevator movable wing plate, selecting a rectangular billet with a weight 15 percentage more than that of the forging, placing the billet to a furnace to heat to a starting forging temperature; placing the billet to a shaping mode cavity of a hammer forging die, forging once or more than once until the up and down mold surfaces are closed; placing the forged and shaped forging to the female die cutting edge of a cut off die, starting a trimming press, placing a punch on the forging to be cut, pushing the forging to be cut into the female die to resect flashes; the resected forging falling into the die holder bottom and being pushed into material frames. The invention has the advantages that the forging die and cut off die designed can reduce the initial allowance of die forgings to a weight only about 15.4 percent of that of the forgings, which can substantially save material fee, labour and energy; besides the invention has a novel, simple and unique structure design and a good die forging effect.

Description

The technology of the movable wing plate forging of a kind of oil-well rig elevator die-forging forming
Technical field
The present invention relates to a kind of technology of making the movable wing plate forging of oil-well rig elevator die-forging forming that is specifically designed to, belong to contour forging technique and make the field.
Background technology
<wing plate〉be the strength member on the oil-well rig elevator parts, forge and to form by structural alloy steel (42CrMo) and (see accompanying drawing 3-1~3-3).Because the particularity and the complexity of design of part, traditional Forging Technology only is that part is simplified to a simple hexahedron, its weak point is: the about 55 kilograms part of weight after the machining, its forge weight (is seen accompanying drawing 4-1~4-2) but up to 149 kilograms, forging blank weight is 2.7 times of pts wt unexpectedly, not only utilization rate of raw materials is low, and machining efficient is low, energy consumption is high.
Summary of the invention
Purpose of design: avoid the weak point in the background technology, the movable wing template die forging that is forged by die forging has reduced the position and the allowance of machining to greatest extent as far as possible near the contour shape of part.
Design: in order to realize above-mentioned purpose of design.1, the forging structure is carried out technological correction and drawn rational forging part figure: the angle of adjusting the forging die joint, eliminate the drop of die joint, to reach the purpose of the level offsetting power that produces in the balance die forging process, must carry out technological correction to satisfy the condition that forges of die forging to forging for this reason.Briefly, the unfavorable variation-forging that remedies the depanning gradient that the adjustment owing to the die joint angle causes exactly cannot depanning by originally can depanning becoming, but makes the forging still depanning smoothly that becomes later on forging being carried out technologic correction.So handle at all without detriment to the overall structure of forging and listed various unfavorable factors having overcome fully above, this part is forged by traditional open die forging change by become reality and reliably of die-forging forming.2, Mould design is a prerequisite with the specification requirement that forges smoothly and reach forging of satisfying forging, must guarantee safe and reliable in the sufficient intensity of mould and life-span and the production process simultaneously.The application is based on above-mentioned theory, designed forging die (edger (Fig. 2-1~2-4) on the side cut hydraulic press of Fig. 1-1~1-3) and the 10000KN that is complementary with it of die forging on the 10t hammer.3, the choose reasonable of original blank shape and specification all can produce significant effects for shaping and the full level of impression, the reasonable distribution of metal streamline, the uniformity whether an amount of and that distribute of overlap of forging.Forge through examination, this process choice has been selected a kind of blank of square-section of suitable dimensions specification.
The basic working procedure of this process implementing is: the blanking-heating-descaling-die forging-side cut-Re shaping-cooling-intermediate survey and the burr of polishing-forging after-baking (normalizing)-second heat treatment (modified-quenching+tempering)-cleaning-final inspection (comprising forging surface quality, dimensional tolerance, Non-Destructive Testing and mechanical test)-delivery.Heat treatment: by strict specification of heat treatment, implement earlier to forge after-baking-normalizing, carry out second heat treatment-modifier treatment (quenching+tempering) thereafter, to satisfy the mechanical performance requirement under the forging duty.
Technical scheme: a kind of contour forging technique that is used for the movable wing plate shaping of die forging oil-well rig elevator, preparation before the die forging:
⑴ carry out technological correction and draw rational forging part figure the forging structure: by adjusting the angle of die joint, to reach the purpose of the level offsetting power that produces in the balance die forging process, and, make the smooth depanning of forging by forging has been carried out technologic correction;
⑵ hammer forging die: the die joint two ends of forging die are on same plane, the branch mould transition face that constitutes is an arc, impression is divided into the roughly close two parts up and down of volume, is subjected to the smooth distribution in impression up and down of hammering when distortion and flows to guarantee metal, the final shaping meets the forging shape of drawing requirement;
⑶ edger: the work cutting edge of die is the profile of a sealing in the edger, and the profile phase of the overlap band of the movable wing plate forging of it and oil-well rig elevator die joint coincide, with guarantee its at work can be accurately and efficiently with the overlap excision of forging; In the edger punch be in the mold work process with the part of transmission pressure.The profile phase of the part of the upper die of the movable wing plate forging of the impression of punch and oil-well rig elevator coincide, in order to avoid forging is damaged by it in the side cut process.For making punch can enter die, be provided with the contour shape that is complementary with cutting edge of die around it, and have certain clearance with cutting edge of die to finish the disengaging of overlap from the forging.
Die forging:
⑴ select weight to insert to be heated in the stove greater than the rectangle steel billet of this forge weight 15% and forge the beginning temperature according to the weight of oil-well rig elevator movable wing template die forging;
⑵ insert it hammer then and go up in the shaping impression of forging die, forges once or once, makes that the forging die upper and lower mould is closed to get final product;
⑶ be put into the forging of die-forging forming on the cutting edge of die of edger, opens clipping press then, makes punch act on the forging of being cut edge and it is pushed die overlap is excised, cut overlap
Forging falls into the mould bases bottom, is pushed then in the pan feeding frame, is deposited in somewhere, workshop air cooling thereafter and forges after-baking and modifier treatment.
The present invention compares with background technology, the one, adopt designed forging die of the application and edger that the machine-finish allowance of forging part is reduced to and only be about 15.4% of forge weight, Master Cost is greatly saved, and the saving of machining man-hour that thereupon brings and aspects such as the energy that is associated, equipment thereof can't measure especially, and its economic benefit is very remarkable; The 2nd, the structural design novelty, simple, unique, die forging is effective.
Description of drawings
Fig. 1-the 1st, the main TV structure schematic diagram of forging die.
Fig. 1-2 is the plan structure schematic diagram of Fig. 1-1.
Fig. 1-the 3rd, the side-looking structural representation of Fig. 1-1.
Fig. 2-the 1st, the structural representation of trim die.
Fig. 2-the 2nd, the plan structure schematic diagram of trim die.
Fig. 2-the 3rd, the structural representation of side cut punch.
Fig. 2-the 4th, the plan structure schematic diagram of side cut punch.
Fig. 3-the 1st, the main TV structure schematic diagram of background technology.
Fig. 3-the 2nd, the side-looking structural representation of background technology.
Fig. 3-the 3rd, the plan structure schematic diagram of background technology.
Fig. 4-the 1st is the main TV structure schematic diagram of hexahedral open die forgings figure after simplifying.
Fig. 4-the 2nd is the plan structure schematic diagram of hexahedral open die forgings figure after simplifying.
Fig. 5 is the forging die structural representation of background technology, and the die joint two ends of forging constitute very big drop (104.4mm) among the figure.
The specific embodiment
Embodiment 1: with reference to accompanying drawing 1-1~2-4.A kind of contour forging technique that is used for the movable wing plate shaping of die forging oil-well rig elevator, preparation before the die forging:
⑴ carry out technological correction and draw rational forging part figure the forging structure: by adjusting the angle of die joint, eliminate the drop of die joint, reaching the purpose of the level offsetting power that produces in the balance die forging process, and, make the smooth depanning of forging by forging has been carried out technologic correction;
⑵ hammer forging die: the die joint two ends of forging die are on same plane, the branch mould transition face that constitutes is an arc, impression is divided into the roughly close two parts up and down of volume, with guarantee metal be subjected to hammering when distortion the reasonable distribution in impression up and down with flow, the final shaping meets the forging shape of drawing requirement;
⑶ edger: the work cutting edge of die seals in the edger, and the overlap belt profile of the movable wing plate forging of it and oil-well rig elevator die joint matches, with guarantee its at work can be accurately and efficiently with the overlap excision of forging; In the edger punch be in the mold work process with the part of transmission pressure.The profile of the part of the upper die of the movable wing plate forging of the impression of punch and oil-well rig elevator must match, in order to avoid make forging damaged by it in the side cut process.For making punch can enter die, be provided with the profile that is complementary with cutting edge of die around it, and have certain clearance with cutting edge of die to finish the disengaging of overlap from the forging.
Die forging:
⑴ select weight greater than this forge weight according to the weight of oil-well rig elevator movable wing template die forging
15% rectangle steel billet is inserted and is heated to initial forging temperature in the stove;
⑵ insert it hammer then and go up in the shaping impression of forging die, forges once or once, makes that the forging die upper and lower mould is closed to get final product;
⑶ be put into the forging of die-forging forming on the cutting edge of die of edger, open clipping press then, making punch act on the forging of being cut edge and it is pushed die excises overlap, the forging of cut overlap falls into the mould bases bottom, then be pushed in the pan feeding frame, be deposited in somewhere, workshop air cooling thereafter and forge after-baking and modifier treatment.
The cambered surface radius of impression die joint is R180mm on the described hammer forging die, and the cambered surface radius of following impression die joint is R220mm.
That is to say, from accompanying drawing 3-1~3-3 as can be seen, by adjustment to the forging part die joint angle of background technology, eliminated the drop of die joint, reached the purpose that is equilibrated at the level offsetting power that produces in the die forging process, and the unfavorable variation-forging of the depanning gradient that causes for the adjustment that remedies owing to the die joint angle cannot depanning by originally can depanning becoming, then the forging drawing that forging has been carried out technologic correction and drawn, make the forging still depanning smoothly that becomes, for continuable condition has been created in the design of next step forging die.
From accompanying drawing 1-1~1-3 as can be seen, the new swage die that designs by the angle of adjusting the forging die joint has been eliminated the drop of die joint effectively, reached the purpose that is equilibrated at the level offsetting power that produces in the die forging deformation process, 4 corner locks of design this moment on forging die only are the effect of performance location when upper and lower mould hits in the mold work process, and the upper and lower mould that causes owing to various foeign elements when working with correcting equipment offsets.Mandatory declaration be, buckle structure in above-mentioned and attached illustrated in Figure 5, the offsetting power of the powerful horizontal direction that causes owing to the very big drop of die joint have to design thick thick fore shaft with it the structure of balance be different in character with using, nonetheless, the effect of latter's performance may not be effectively desirable, and there is a bigger potential safety hazard, non-must not getting then.
From accompanying drawing 2-1~2-4 as can be seen, based on the requirement of forging process structure and design of forging die, designed the edger on the side cut hydraulic press of the 10000KN that is complementary with it.
Mould design is foundation and basis with the forging drawing, with the specification requirement that forges smoothly and reach forging of satisfying forging is prerequisite, must guarantee simultaneously safe and reliable in the sufficient intensity of mould and life-span and the production process, above theory is the guiding theory of present embodiment.
Be worth should be mentioned that: in the process implementing process, the choose reasonable of original blank shape and specification all can produce significant effects for shaping and the full level of impression, the reasonable distribution of metal streamline, the uniformity whether an amount of and that distribute of overlap of forging.Forge through examination, this process choice has been selected a kind of blank of square-section of suitable dimensions specification.
The basic working procedure of this process implementing is: the blanking-heating-descaling-die forging-side cut-Re shaping-cooling-intermediate survey and the burr of polishing-forging back normalizing heat treatment-forging back second heat treatment quenching and tempering, quenching+tempering-cleaning-final inspection (comprising forging surface quality, dimensional tolerance, form and position tolerance, Non-Destructive Testing and mechanical test)-delivery.
Be not difficult to find out that (Fig. 3-1~3-3), die joint is broken line, turning point orthodrome transition (Fig. 3-1~3-3 and Fig. 5) if keep the original configuration state of part fully.As shown in Figure 5, the drop of die joint is 104.4 mm (cold forging spare die joint drop is 103.83mm), in order to be equilibrated at the offsetting power of the horizontal direction that produces in the die forging process, must design powerful snap close, even if but like this, because its offsetting power is so huge, the probability that snap close is broken in the course of the work is very big, it will cause forging die short-lived and lost efficacy; And huge offsetting power will make forging produce the offsetting tolerance that is above standard and requires, and also can bring adverse influence to equipment simultaneously, also can bring hidden danger to production safety.For edger, normally the carrying out of location when the cutting edge state of such forging die joint and the existence of horizontal component are unfavorable for then that forging is cut edge and side cut operation; You also can find when designing the side cut punch, therefore cause the local die wall of punch very thin, can't guarantee that it has the side cut power that enough intensity is transmitted equipment, and punch is deformation annealing inefficacy therefore and rapidly also.
What need understand is: though the various embodiments described above are to the mentality of designing of the present invention detailed text description of contrasting; but these text descriptions; just the simple text of mentality of designing of the present invention is described; rather than to the restriction of mentality of designing of the present invention; any combination, increase or modification that does not exceed mentality of designing of the present invention all falls within the scope of protection of the present invention.

Claims (2)

1. technology that is used for the movable wing plate forging of oil-well rig elevator die-forging forming is characterized in that: preparation before the die forging:
⑴ carry out technological correction and draw rational forging part figure the forging structure, by adjusting the angle of die joint, eliminate the drop of die joint, to reach the level offsetting power in the balance die forging process, and, make forging depanning smoothly by forging is carried out technologic correction;
⑵ hammer forging die: the die joint two ends of forging die are on same plane, the branch mould transition face that constitutes is an arc, impression is divided into the roughly close two parts up and down of volume, is subjected to the smooth distribution in impression up and down of hammering when distortion and flows to guarantee metal, the final shaping meets the forging shape of drawing requirement;
⑶ edger: the work cutting edge of die is the profile of a sealing in the edger, and the profile phase of the overlap band of the movable wing plate forging of it and oil-well rig elevator die joint coincide, with guarantee its at work can be accurately and efficiently with the overlap excision of forging; In the edger punch be in the mold work process with the part of transmission pressure, the profile phase of the part of the upper die of the movable wing plate forging of the impression of punch and oil-well rig elevator coincide, in order to avoid forging is damaged by it in the side cut process, for making punch can enter die to finish the disengaging of overlap from the forging, be provided with the contour shape that is complementary with cutting edge of die around it, and have certain clearance with cutting edge of die;
Die forging:
⑴ select weight to insert greater than the rectangle steel billet of this forge weight 15% and be heated to initial forging temperature in the stove according to the weight of oil-well rig elevator movable wing template die forging;
⑵ insert it hammer then and go up in the shaping impression of forging die, forges once or once, makes that the forging die upper and lower mould is closed to get final product;
⑶ be put into the forging of die-forging forming on the cutting edge of die of edger, open clipping press then, making punch act on the forging of being cut edge and it is pushed die excises overlap, the forging of cut overlap falls into the mould bases bottom, then be pushed in the pan feeding frame, be deposited in somewhere, workshop air cooling thereafter and forge after-baking and modifier treatment.
2. the technology that is used for the movable wing plate forging of oil-well rig elevator die-forging forming according to claim 1, it is characterized in that: the die joint two ends of described hammer forging die are on same plane, the branch mould transition face that constitutes is an arc, the cambered surface radius of impression die joint is R180mm on the hammer forging die, and the cambered surface radius of following impression die joint is R220mm.
CN 201010545110 2010-11-16 2010-11-16 Die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates CN102019336B (en)

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CN102019336B CN102019336B (en) 2013-01-30

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103100592A (en) * 2012-12-08 2013-05-15 无锡透平叶片有限公司 Installation structure of edge cutting die
CN106270331A (en) * 2016-08-31 2017-01-04 宝鸡石油机械有限责任公司 A kind of free forging method of petroleum drilling and mining lock tongue body

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2254787Y (en) * 1995-11-02 1997-05-28 霍连魁 Non-contacted-thin-sheet die for ring shaped forging piece
CN2316068Y (en) * 1997-08-21 1999-04-28 湖北传动轴股份有限公司 Automobile generator claw-pole blank finish forging die
US6085405A (en) * 1998-09-15 2000-07-11 Kao; Cheng-Hsien Method of fabricating a handlebar stem for a bicycle
CN1861314A (en) * 2005-05-10 2006-11-15 南阳二机石油装备(集团)有限公司 Integral forging method for mfg. petroleum double-arm lifting-ring
CN2871060Y (en) * 2005-10-31 2007-02-21 华中科技大学 Closed geared cold precisive forging mould of straight-toothed shaped cone

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2254787Y (en) * 1995-11-02 1997-05-28 霍连魁 Non-contacted-thin-sheet die for ring shaped forging piece
CN2316068Y (en) * 1997-08-21 1999-04-28 湖北传动轴股份有限公司 Automobile generator claw-pole blank finish forging die
US6085405A (en) * 1998-09-15 2000-07-11 Kao; Cheng-Hsien Method of fabricating a handlebar stem for a bicycle
CN1861314A (en) * 2005-05-10 2006-11-15 南阳二机石油装备(集团)有限公司 Integral forging method for mfg. petroleum double-arm lifting-ring
CN2871060Y (en) * 2005-10-31 2007-02-21 华中科技大学 Closed geared cold precisive forging mould of straight-toothed shaped cone

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103100592A (en) * 2012-12-08 2013-05-15 无锡透平叶片有限公司 Installation structure of edge cutting die
CN106270331A (en) * 2016-08-31 2017-01-04 宝鸡石油机械有限责任公司 A kind of free forging method of petroleum drilling and mining lock tongue body
CN106270331B (en) * 2016-08-31 2018-07-10 宝鸡石油机械有限责任公司 A kind of free forging method of petroleum drilling and mining lock tongue body

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Inventor after: Qian Shaolun

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Address after: 311106 Industrial Park, Tangqi Town, Yuhang District, Zhejiang, China

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Patentee before: Baoding Heavy Industry Co., Ltd.