CN107186149A - A kind of first mould two pieces forging mold of drilling rod connecting and method - Google Patents

A kind of first mould two pieces forging mold of drilling rod connecting and method Download PDF

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Publication number
CN107186149A
CN107186149A CN201710590759.3A CN201710590759A CN107186149A CN 107186149 A CN107186149 A CN 107186149A CN 201710590759 A CN201710590759 A CN 201710590759A CN 107186149 A CN107186149 A CN 107186149A
Authority
CN
China
Prior art keywords
mould
forging
upsetting
drilling rod
pieces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201710590759.3A
Other languages
Chinese (zh)
Inventor
李振奎
周中吉
倪铁军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI DOUBLE HORSE DRILLING TOOLS Co Ltd
Original Assignee
WUXI DOUBLE HORSE DRILLING TOOLS Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WUXI DOUBLE HORSE DRILLING TOOLS Co Ltd filed Critical WUXI DOUBLE HORSE DRILLING TOOLS Co Ltd
Priority to CN201710590759.3A priority Critical patent/CN107186149A/en
Publication of CN107186149A publication Critical patent/CN107186149A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J1/00Preparing metal stock or similar ancillary operations prior, during or post forging, e.g. heating or cooling
    • B21J1/06Heating or cooling methods or arrangements specially adapted for performing forging or pressing operations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J13/00Details of machines for forging, pressing, or hammering
    • B21J13/02Dies or mountings therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/002Hybrid process, e.g. forging following casting
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21KMAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00Making machine elements
    • B21K1/14Making machine elements fittings
    • B21K1/16Making machine elements fittings parts of pipe or hose couplings

Abstract

The invention discloses a kind of first mould two pieces forging mold of drilling rod connecting and method, the mould includes upper mould, lower mould, first upsetting drift and the second upsetting drift, the lower mould is located at the underface of the upper mould, the first upsetting drift and the second upsetting drift to that should be able to move horizontally are arranged at the both sides of the lower mould, wherein, the upper mould includes upper bolster, Upper Die-sleeve and upper mold core, the lower mould includes die shoe, lower die-sleeve and lower mold core, shaping boss is correspondingly arranged in the middle part of the upper mold core and lower mold core, and the upper mold core and lower mold core are provided with the forming cavity for coordinating tool joint profile to set in the both sides of the shaping boss.The above-mentioned first mould two pieces forging mold of drilling rod connecting can carry out a mould two to suitable tool joint and forge, and not only simplify the forging technology of tool joint;And processing efficiency is improved, reduce processing cost.

Description

A kind of first mould two pieces forging mold of drilling rod connecting and method
Technical field
The invention belongs to drilling rod process technology, more particularly, to a kind of first mould two pieces forging mold of drilling rod connecting and method.
Background technology
At present, existing tool joint processing is more using one forging scheme of a mould, and main step is:Blanking-add Heat-base-die forging-punching-forging post processing-roughing-heat treatment.There is complex process, processing in this forging mode Efficiency is low and the high shortcoming of cost.
The content of the invention
It is an object of the invention to provide a kind of first mould two pieces forging mold of drilling rod connecting, it can simplify tool joint Forging technology, the characteristics of with high in machining efficiency and reduction processing cost, to solve the first mould of drilling rod connecting one in the prior art Above mentioned problem present in forging process.
Another object of the present invention is to provide a kind of drilling rod connecting first mould two pieces forging method, its concrete technology is simple, The characteristics of forging efficiency high and low processing cost, to solve present in one forging process of the first mould of drilling rod connecting in the prior art Above mentioned problem.
For up to this purpose, the present invention uses following technical scheme:
A kind of first mould two pieces forging mold of drilling rod connecting, it includes upper die and lower die, the first upsetting drift and the second upsetting punching Head, the lower mould is located at the underface of the upper mould, and the first upsetting drift and the second upsetting drift are to that should be able to move horizontally Ground is arranged at the both sides of the lower mould, wherein, the upper mould includes upper bolster, Upper Die-sleeve and upper mold core, under the lower mould includes Be correspondingly arranged on shaping boss in the middle part of die holder, lower die-sleeve and lower mold core, the upper mold core and lower mold core, and the upper mold core and Lower mold core is provided with the forming cavity for coordinating tool joint profile to set in the both sides of the shaping boss.
Especially, the first upsetting drift and the second upsetting drift may be contained within corresponding punch holder, the drift Seat is connected with driving oil cylinder.
A kind of first mould two pieces forging method of drilling rod connecting, it comprises the following steps:
1) bar of appropriate length is heated;
2) bar heated is put into lower mold core,
3) the descending matched moulds of mould on, the first upsetting drift and the second upsetting drift, which advance, carries out upsetting, in the center of bar Form cut-off rule;
4) forging post processing;
5) sawing is carried out along the cut-off rule, forms two tool joints,
6) roughing and heat treatment are carried out to tool joint.
Especially, the step 1) in the length of bar be L1, the length of tool joint finished product is L2, then L1 ﹥ 2L2.
Especially, the step 1) in heating-up temperature be 1160 ± 20 DEG C, Frequency Induction Heating pitch time 90S~ 120S。
Especially, the step 3) in 1160 ± 20 DEG C of initial forging temperature, 850 DEG C~1050 DEG C of final forging temperature, two ends first, Second upsetting Forging drifts advance simultaneously, extrude upsetting Forging joints, and the extruding of bar center produces left and right two pieces joint gross weight, stroke during finish-forging Cut-off rule.
Especially, the step 4) in specific processing method be:Using 800 DEG C~1000 DEG C of waste heat after forging normalizing or move back Fire, and with stove natural cooling.
Especially, the step 6) in Technology for Heating Processing be:Using 880 DEG C of water quenchings, then 650 DEG C of tempering, the time is 2 small When.
Beneficial effects of the present invention are, compared with prior art the first mould two pieces forging mold of the drilling rod connecting and method energy It is enough that suitable tool joint one mould two of progress is forged, it not only simplify the forging technology of tool joint;And improve processing effect Rate, reduces processing cost.
Brief description of the drawings
Fig. 1 is the structural representation for the first mould two pieces forging mold of drilling rod connecting that the specific embodiment of the invention 1 is provided.
Embodiment
Further illustrate technical scheme below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1, Fig. 1 is the first mould two pieces forging mold of drilling rod connecting that the specific embodiment of the invention 1 is provided Structural representation.
In the present embodiment, a kind of first mould two pieces forging mold of drilling rod connecting includes upper die and lower die, the and of the first upsetting drift 1 Second upsetting drift 2, the lower mould is located at the underface of the upper mould, and the upper mould includes upper bolster 3, Upper Die-sleeve 4 and upper mould Core 5, the lower mould includes die shoe 6, lower die-sleeve 7 and lower mold core 8, and the Upper Die-sleeve 4 is fixed on the lower section of the upper bolster 3, The upper mold core 5 is fixed on the Upper Die-sleeve 4, and the lower die-sleeve 7 is fixed on the top of the die shoe 6, the lower mold core 8 It is fixed on the lower die-sleeve 7, the middle part of the upper mold core 5 and lower mold core 8 is correspondingly arranged on shaping boss 9, and the upper mould Core 5 and lower mold core 6 are provided with the forming cavity 10 for coordinating tool joint profile to set in the both sides of the shaping boss 9.By into Type boss 9 and the overall profile of the formation tool joint of forming cavity 10.And form segmentation for later stage sawing by being molded boss 9 Line.
The first upsetting drift 1 and the second upsetting drift 2 are correspondingly arranged in the both sides of the lower mould, and first upsetting The forging upsetting drift 2 of drift 1 and second may be contained within punch holder 11, and the punch holder 11 is all connected with driving oil cylinder, the driving The first upsetting of hydraulic oil cylinder driving drift 1 and the second upsetting drift 2 do expanding-contracting action in the horizontal direction.
A kind of first mould two pieces forging method of drilling rod connecting, by taking NC50 tool joints as an example, it comprises the following steps:
1) bar of appropriate length is heated, if the length of bar is L1, the length of tool joint finished product is L2, then L1 ﹥ 2L2, while heating-up temperature is 1160 ± 20 DEG C, Frequency Induction Heating pitch time 90S~120S;
2) bar heated is put into lower mold core;
3) the descending matched moulds of mould on, the first upsetting drift and the second upsetting drift, which advance, carries out upsetting, in the center of bar Form cut-off rule;Wherein 1160 ± 20 DEG C of initial forging temperature, 850 DEG C~1050 DEG C of final forging temperature, the upsetting Forging drifts of two ends first, second Advance simultaneously, extrude upsetting Forging joints, the extruding of bar center produces left and right two pieces joint gross weight, stroke cut-off rule during finish-forging;
4) forging post processing, specifically refers to reduce a heat treatment of stress and removes endoporus gross weight, Technology for Heating Processing is: Using 800 DEG C~1000 DEG C of normalizing or annealing of waste heat after forging, and with stove natural cooling,
5) sawing is carried out along the cut-off rule, forms two tool joints;
6) roughing and heat treatment are carried out to tool joint, roughing refers to rough carry out one-time mechanical processing, Remove possible defect, unnecessary surplus, be easy to follow-up flaw detection and the heat treatment of material, heat treatment uses modifier treatment, quenched Fire+high tempering, i.e., using 880 DEG C of water quenchings, then 650 DEG C of tempering, the time is 2 hours.
Above example is the general principle and characteristic for elaborating the present invention, and the present invention is not limited by above-mentioned example, Without departing from the spirit and scope, the present invention also has various change and change, and these changes and modifications are both fallen within In scope of the claimed invention.The scope of the present invention is defined by the appended claims and its equivalents.

Claims (8)

1. a kind of first mould two pieces forging mold of drilling rod connecting, it includes upper die and lower die, the first upsetting drift and the second upsetting punching Head, the lower mould is located at the underface of the upper mould, and the first upsetting drift and the second upsetting drift are to that should be able to move horizontally Ground is arranged at the both sides of the lower mould, it is characterised in that the upper mould includes upper bolster, Upper Die-sleeve and upper mold core, the lower mould Including die shoe, lower die-sleeve and lower mold core, be correspondingly arranged on shaping boss in the middle part of the upper mold core and lower mold core, and it is described on Core rod and lower mold core are provided with the forming cavity for coordinating tool joint profile to set in the both sides of the shaping boss.
2. the first mould two pieces forging mold of drilling rod connecting according to claim 1, it is characterised in that the first upsetting drift It is may be contained within the second upsetting drift in corresponding punch holder, the punch holder is connected with driving oil cylinder.
3. a kind of first mould two pieces forging method of drilling rod connecting, it is characterised in that it comprises the following steps:
1) bar of appropriate length is heated;
2) bar heated is put into lower mold core,
3) the descending matched moulds of mould on, the first upsetting drift and the second upsetting drift, which advance, carries out upsetting, is formed in the center of bar Cut-off rule;
4) forging post processing;
5) sawing is carried out along the cut-off rule, forms two tool joints,
6) roughing and heat treatment are carried out to tool joint.
4. the first mould two pieces forging method of drilling rod connecting according to claim 3, it is characterised in that the step 1) in bar Length be L1, the length of tool joint finished product is L2, then L1 ﹥ 2L2.
5. the first mould two pieces forging method of drilling rod connecting according to claim 3, it is characterised in that the step 1) middle heating Temperature is 1160 ± 20 DEG C, Frequency Induction Heating pitch time 90S~120S.
6. the first mould two pieces forging method of drilling rod connecting according to claim 3, it is characterised in that the step 3) middle forging of beginning 1160 ± 20 DEG C of temperature, 850 DEG C~1050 DEG C of final forging temperature, the upsetting Forging drifts of two ends first, second advance simultaneously, and extruding upsetting Forging connects Head, the extruding of bar center produces left and right two pieces joint gross weight, stroke cut-off rule during finish-forging.
7. the first mould two pieces forging method of drilling rod connecting according to claim 3, it is characterised in that the step 4) in it is specific Processing method is:Using 800 DEG C~1000 DEG C of normalizing or annealing of waste heat after forging, and with stove natural cooling.
8. the first mould two pieces forging method of drilling rod connecting according to claim 3, it is characterised in that the step 6) at heat Science and engineering skill is:Using 880 DEG C of water quenchings, then 650 DEG C of tempering, the time is 2 hours.
CN201710590759.3A 2017-07-19 2017-07-19 A kind of first mould two pieces forging mold of drilling rod connecting and method Pending CN107186149A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710590759.3A CN107186149A (en) 2017-07-19 2017-07-19 A kind of first mould two pieces forging mold of drilling rod connecting and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710590759.3A CN107186149A (en) 2017-07-19 2017-07-19 A kind of first mould two pieces forging mold of drilling rod connecting and method

Publications (1)

Publication Number Publication Date
CN107186149A true CN107186149A (en) 2017-09-22

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Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188244A (en) * 2017-12-29 2018-06-22 四川明日宇航工业有限责任公司 The processing method of the funnel part of aircraft engine
CN111014552A (en) * 2019-12-04 2020-04-17 上海交通大学 Blank making method and die for long-shaft forge pieces

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108188244A (en) * 2017-12-29 2018-06-22 四川明日宇航工业有限责任公司 The processing method of the funnel part of aircraft engine
CN111014552A (en) * 2019-12-04 2020-04-17 上海交通大学 Blank making method and die for long-shaft forge pieces

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