CN104511566A - Technological method for closed die forging of intermediate input shaft of loading machine - Google Patents

Technological method for closed die forging of intermediate input shaft of loading machine Download PDF

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Publication number
CN104511566A
CN104511566A CN201310678994.8A CN201310678994A CN104511566A CN 104511566 A CN104511566 A CN 104511566A CN 201310678994 A CN201310678994 A CN 201310678994A CN 104511566 A CN104511566 A CN 104511566A
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CN
China
Prior art keywords
pendulum
forging
die
patrix
mould
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.)
Granted
Application number
CN201310678994.8A
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Chinese (zh)
Other versions
CN104511566B (en
Inventor
陈国财
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.)
LIUZHOU GUOSHUN MECHANICAL MANUFACTURE Co Ltd
Original Assignee
LIUZHOU GUOSHUN MECHANICAL MANUFACTURE 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.)
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Priority to CN201310678994.8A priority Critical patent/CN104511566B/en
Publication of CN104511566A publication Critical patent/CN104511566A/en
Application granted granted Critical
Publication of CN104511566B publication Critical patent/CN104511566B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B21K1/06Making machine elements axles or shafts
    • B21K1/12Making machine elements axles or shafts of specially-shaped cross-section
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21HMAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00Making articles shaped as bodies of revolution
    • B21H1/02Making articles shaped as bodies of revolution discs; disc wheels
    • 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
    • B21J5/02Die forging; Trimming by making use of special dies ; Punching during forging
    • B21J5/025Closed die forging
    • 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
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations
    • B21J5/08Upsetting

Abstract

The invention discloses a technological method for closed die forging of an intermediate input shaft of a loading machine, and relates to the technical field of machining. The technological method comprises the following steps that a bar material is fed according to the size required by the technology, the bar material is heated to enable the temperature to be 1050DEG C, a blank is made through a pre-upsetting die of an upsetting hydraulic press, the blank which is processed through upsetting is moved to a rotary forging machine to be processed through rotary forging forming, and a forged piece which is processed through rotary forging forming is placed into a circulation box to be cooled. The technological method can solve the problems that in the prior art, accuracy of intermediate input shaft forged pieces of loading machines is poor, the die manufacturing cost is high, and the working environment is poor.

Description

The process of loading machine intermediate input axle closed die forging
Technical field
The present invention relates to Machining Technology field, especially a kind of dish class elongate articles closed die forging process.
Background technology
The intermediate input axle of loading machine is dish class elongate articles, and its forging is general in the past adopts traditional die hammer Forging Technology, and basic working procedure is heating furnace heating, pneumatic hammer jumping-up, die hammer are shaped and punch press trimming; There are the following problems for this traditional Forging Technology: 1, severe operational environment, produces noise large; 2, equipment is large to ground vibration, and Equipment Foundations are complicated; 3, Product Precision is poor, and because die hammer guiding accuracy is poor, cause product die parting line to offset large, the monolateral allowance of product is large; 4, die manufacturing cost is high, and because forming process has very large impact, mould must design very huge, and to increase cushion faces, simultaneously owing to being shaped with impact, die wear is fast, causes die life low.
Summary of the invention
The object of this invention is to provide the process of a kind of loading machine intermediate input axle closed die forging, it can solve the problem of the high and poor working environment of prior art products low precision, die manufacturing cost.
In order to solve the problem, the technical solution used in the present invention is:
A process for loading machine intermediate input axle closed die forging, comprises the following steps:
A, blanking: the round bar with band sawing machine, round steel being sawn into technological requirement size;
B, heating: round bar sawed for step A is put into intermediate frequency heating, heating and temperature control is at 1150 DEG C ± 50 DEG C;
C, base: the round bar heated is put into pre-upsetting machine and pre-upsets, employing of pre-upsetting is pre-upset mould, and final forging temperature controls at 1050 DEG C ± 50 DEG C;
D, shaping: base step C made moves to rotary forging press pendulum and rolles over shaping, mould rolles over mould for pendulum, and final forging temperature controls at 900 DEG C ~ 950 DEG C;
E, cooling: cool being put in Turnover Box through the shaping intermediate input forging shaft of pendulum rolling.
In above technical scheme, further scheme is: mould of pre-upsetting described in step C is large little patrix under comprising the up big and down small counterdie of die cavity and a die cavity, the bottom of described counterdie is provided with through hole, the top of described patrix is provided with through hole, described patrix is connected with upper bolster by jockey, be provided with a pressure ram in the through hole of described patrix, described pressure ram is connected with a pressure ram die holder.
Further: pendulum described in D step is rolled over mould and comprised a pendulum with up-small and down-big die cavity and roll over patrix and a pendulum with up big and down small die cavity rolles over counterdie, and the bottom that described pendulum rolles over the die cavity of counterdie is provided with a through hole.
Owing to have employed technique scheme, the present invention compared with prior art has following beneficial effect:
1, adopt this technological method for processing, thinner bar can be selected to carry out electrical induction, blank can carry out Fast Heating, and production efficiency is high, and blank surface oxidation is few, and forging surface quality is good;
2, adopt this technological method for processing, adopt common hydraulic forging press jumping-up base, rotary forging press pendulum is rolled over shaping, and die life is higher; Moreover, due in forming process without impact shock, noise is little, and operator's labour intensity and work situation are greatly improved, and production efficiency improves greatly;
3, adopt this technological method for processing, can adopt 200T enclosed rotary forging press, disposal molding, forming process is roll milling forming, and upper and lower mould magnitude of misalignment is very little, and the monolateral allowance of forging is few, and Product Precision is high.
Accompanying drawing explanation
Fig. 1 is mould assembly front view of pre-upsetting.
Fig. 2 is that pendulum rolles over mould assembly front view.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is further described: as shown in Fig. 1 ~ Fig. 2,
A process for loading machine intermediate input axle closed die forging, comprises the following steps:
A, blanking: the round bar with band sawing machine, round steel being sawn into technological requirement size;
B, heating: round bar sawed for step A is put into intermediate frequency heating, heating and temperature control is at 1150 DEG C ± 50 DEG C;
C, base: the round bar heated is put into pre-upsetting machine and pre-upsets, employing of pre-upsetting is pre-upset mould, and final forging temperature controls at 1050 DEG C ± 50 DEG C;
D, shaping: base step C made moves to rotary forging press pendulum and rolles over shaping, mould rolles over mould for pendulum, and final forging temperature controls at 900 DEG C ~ 950 DEG C;
E, cooling: cool being put in Turnover Box through the shaping intermediate input forging shaft of pendulum rolling.
The mould of pre-upsetting of step C comprises large little patrix 3 under the up big and down small lower and die cavity of die cavity, the bottom of counterdie 1 is provided with the through hole placing bar 2, the top of patrix 3 is provided with through hole, patrix 3 is connected with upper bolster 4 by connecting bolt, be provided with a pressure ram 5 in the through hole of patrix 3, pressure ram 5 and a pressure ram die holder 6 are threaded connection; After bar 2 puts into counterdie 1 and patrix 3, pressure ram 5 moves up and down under the drive of jumping-up hydraulic press, and jumping-up bar 2 is until jumping-up operation completes.
The pendulum of D step is rolled over mould and is comprised a pendulum with up-small and down-big die cavity and roll over patrix 7 and a pendulum with up big and down small die cavity rolles over counterdie 9, the bottom that pendulum rolles over the die cavity of counterdie 9 is provided with a through hole, the cylindrical rod of the blank 8 that jumping-up is crossed is put into after pendulum rolles over the through hole of counterdie 9, and pendulum is rolled over patrix 7 and rolled over shaping completing by the jumping-up position straight of rotary forging press spreading blank 8 to pendulum.

Claims (3)

1. a process for loading machine intermediate input axle closed die forging, is characterized in that: comprise the following steps:
A, blanking: the round bar with band sawing machine, round steel being sawn into technological requirement size;
B, heating: round bar sawed for step A is put into intermediate frequency heating, heating and temperature control is at 1150 DEG C ± 50 DEG C;
C, base: the round bar heated is put into pre-upsetting machine and pre-upsets, employing of pre-upsetting is pre-upset mould, and final forging temperature controls at 1050 DEG C ± 50 DEG C;
D, shaping: base step C made moves to rotary forging press pendulum and rolles over shaping, mould rolles over mould for pendulum, and final forging temperature controls at 900 DEG C ~ 950 DEG C;
E, cooling: cool being put in Turnover Box through the shaping intermediate input forging shaft of pendulum rolling.
2. the process of loading machine intermediate input axle according to claim 1 closed die forging, it is characterized in that: mould of pre-upsetting described in step C is large little patrix (3) under comprising the up big and down small counterdie (1) of die cavity and a die cavity, the bottom of described counterdie (1) is provided with through hole, the top of described patrix (3) is provided with through hole, described patrix (3) is connected with upper bolster (4) by jockey, be provided with a pressure ram (5) in the through hole of described patrix (3), described pressure ram (5) is connected with a pressure ram die holder (6).
3. the process of loading machine intermediate input axle according to claim 1 closed die forging, is characterized in that:
Pendulum described in D step is rolled over mould and is comprised a pendulum with up-small and down-big die cavity and roll over patrix (7) and a pendulum with up big and down small die cavity rolles over counterdie (9), and the bottom of the die cavity of described pendulum rolling counterdie (9) is provided with a through hole.
CN201310678994.8A 2013-12-14 2013-12-14 The process of loader intermediate input axle closed die forging Expired - Fee Related CN104511566B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310678994.8A CN104511566B (en) 2013-12-14 2013-12-14 The process of loader intermediate input axle closed die forging

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310678994.8A CN104511566B (en) 2013-12-14 2013-12-14 The process of loader intermediate input axle closed die forging

Publications (2)

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CN104511566A true CN104511566A (en) 2015-04-15
CN104511566B CN104511566B (en) 2016-11-02

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104858345A (en) * 2015-06-03 2015-08-26 杭州前进锻造有限公司 Method for die forging of gear box output shaft
CN108160885A (en) * 2016-12-07 2018-06-15 陕西宏远航空锻造有限责任公司 A kind of preparation method of babinet class forging part boss
CN108188314A (en) * 2018-03-09 2018-06-22 重庆禀天科技有限公司 Band ear cylinder proper forgings One-time forging Whole fiber moulding process
CN108273953A (en) * 2017-12-29 2018-07-13 太仓久进汽车零部件有限公司 Automobile DCT speed changers input outer shaft deep hole cold forging base forming technology
CN108326523A (en) * 2017-12-29 2018-07-27 太仓久进汽车零部件有限公司 Automobile DCT speed changers input the compound cold forming process of outer shaft

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003136175A (en) * 2001-10-29 2003-05-14 Koshin Giken:Kk Method and apparatus for forging metal-material
CN102000754A (en) * 2010-09-26 2011-04-06 青特集团有限公司 Manufacturing process of half shaft with flange plate
CN102476259A (en) * 2010-11-22 2012-05-30 贵州顺峰汽车零部件制造有限公司 Manufacturing technology for half-axis sleeve tube
CN102513791A (en) * 2011-12-27 2012-06-27 十堰园钧工贸有限公司 Technical method for forming semi-axle housing tube for large-diameter flange
CN102554093A (en) * 2011-12-14 2012-07-11 青特集团有限公司 Pre-upset one-heating forming mold and pre-upset process
CN202824505U (en) * 2012-08-31 2013-03-27 山东圣泰机电科技有限公司 Semiaxis flange complete set production equipment
CN203018671U (en) * 2013-01-31 2013-06-26 宁波市四通达模具制造有限公司 Cold rotary forging forming die for automobile clutch plate hub

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003136175A (en) * 2001-10-29 2003-05-14 Koshin Giken:Kk Method and apparatus for forging metal-material
CN102000754A (en) * 2010-09-26 2011-04-06 青特集团有限公司 Manufacturing process of half shaft with flange plate
CN102476259A (en) * 2010-11-22 2012-05-30 贵州顺峰汽车零部件制造有限公司 Manufacturing technology for half-axis sleeve tube
CN102554093A (en) * 2011-12-14 2012-07-11 青特集团有限公司 Pre-upset one-heating forming mold and pre-upset process
CN102513791A (en) * 2011-12-27 2012-06-27 十堰园钧工贸有限公司 Technical method for forming semi-axle housing tube for large-diameter flange
CN202824505U (en) * 2012-08-31 2013-03-27 山东圣泰机电科技有限公司 Semiaxis flange complete set production equipment
CN203018671U (en) * 2013-01-31 2013-06-26 宁波市四通达模具制造有限公司 Cold rotary forging forming die for automobile clutch plate hub

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104858345A (en) * 2015-06-03 2015-08-26 杭州前进锻造有限公司 Method for die forging of gear box output shaft
CN108160885A (en) * 2016-12-07 2018-06-15 陕西宏远航空锻造有限责任公司 A kind of preparation method of babinet class forging part boss
CN108273953A (en) * 2017-12-29 2018-07-13 太仓久进汽车零部件有限公司 Automobile DCT speed changers input outer shaft deep hole cold forging base forming technology
CN108326523A (en) * 2017-12-29 2018-07-27 太仓久进汽车零部件有限公司 Automobile DCT speed changers input the compound cold forming process of outer shaft
CN108188314A (en) * 2018-03-09 2018-06-22 重庆禀天科技有限公司 Band ear cylinder proper forgings One-time forging Whole fiber moulding process
CN108188314B (en) * 2018-03-09 2019-05-21 重庆禀天科技有限公司 Band ear cylinder proper forgings One-time forging Whole fiber moulding process

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Granted publication date: 20161102

Termination date: 20161214