CN102294404A - Process method for trimming and punching connecting rod class forged piece by utilizing composite die - Google Patents
Process method for trimming and punching connecting rod class forged piece by utilizing composite die Download PDFInfo
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- CN102294404A CN102294404A CN2011102368758A CN201110236875A CN102294404A CN 102294404 A CN102294404 A CN 102294404A CN 2011102368758 A CN2011102368758 A CN 2011102368758A CN 201110236875 A CN201110236875 A CN 201110236875A CN 102294404 A CN102294404 A CN 102294404A
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Abstract
The invention discloses a process method for trimming and punching a connecting rod class forged piece by utilizing a composite die. The composite die in the process method for trimming and punching the connecting rod class forged piece by utilizing the composite die comprises a convex die fixed on a holder at the upper part of a pressure machine, a concave die fixed on a base of the pressure machine by a die holder, a punching head holder fixed on the base of the pressure machine, a punching head fixed on the punching head holder, a piece supporting disk connected with the holder by a pulling rod mechanism and an ejector fixed on the piece supporting disk. The process method disclosed by the invention comprises four steps of placing a workpiece, trimming, punching and stripping, and the two working procedures of trimming and punching are finished at one time on a set of composite die. According to the process method for trimming and punching the connecting rod class forged piece by utilizing the composite die, the problems of large labor strength of a worker, resource wastage, long production period and the like, which are caused because various work types and various working procedures are required for the working procedures of trimming and punching of a connecting rod class forged piece of a traditional large-sized/middle-sized diesel engine, are effectively solved, and the condition is provided for realizing the large-batch quick production of this class of workpieces.
Description
Technical field
The invention belongs to field of machining, particularly, relate to a kind of process of utilizing composite die to carry out connecting rod forging edge-cutting and hole-punching.
Background technology
The present situation that the connecting rod forging of big-and-middle-sized diesel engine is processed is at present, and workpiece is carried out single side cut operation, adopts punching or Methods of OFC-A to remove to the gross weight in workpiece two stomidiums.Shortcomings such as such production technology has labor strength big, consumes oxygen, acetylene resource, and the production cycle is long have improved production cost, have delayed the delivery cycle, realize that for such workpiece in enormous quantities production fast forms bottleneck.
Summary of the invention
The objective of the invention is to, design a kind of new technological method for processing and matching die, make for the side cut in the processing of connecting rod forging, the punching operation is disposable finishes.
The objective of the invention is by adopting following technical scheme to realize:
A kind of composite die that is used for connecting rod forging edge-cutting and hole-punching, comprise: the holder part dish that be fixed in punch on the clamper of forcing press top, is fixed in die on the press base, is fixed in the punch holder on the press base and is fixed in drift on the punch holder, is connected with clamper by drag link mechanism by die holder and be fixed in pusher on the holder part dish, it is characterized in that: punch moves back and forth between top dead centre and lower dead center with forcing press clamper knee-action; Described drift top height is lower than the last cutting edge of die, and both differences in height are greater than the flash thickness of workpiece; Holder part dish and pusher move up and down with clamper and punch by drag link mechanism.Its described punch edge shape and workpiece top coupling, the shape of described pusher and workpiece bottom coupling.
A kind of connecting rod forging edge-cutting and hole-punching process, utilize aforesaid a kind of composite die that is used for connecting rod forging edge-cutting and hole-punching to realize, comprise and put workpiece, side cut, punching, four steps of the demoulding, it is characterized in that: described side cut, punching two procedures on a cover composite die once property finish:
(1) workpiece places on the aforesaid die;
(2) aforesaid punch is descending, intersects with described die and finishes the side cut operation;
(3) workpiece falls on the aforesaid drift, along with described punch continuation is descending, finishes the punching operation, and workpiece falls on the aforesaid pusher;
(4) aforesaid clamper comes downwards to the punch that is fixed thereon and goes upward to top dead centre after bottom dead center immediately at this moment, aforesaid holder part dish also goes upward to the workpiece extracting position with the pusher that is fixed thereon by aforesaid drag link mechanism thereupon, workpiece is under the guiding of described punch holder and the drift that is fixed thereon, eject by described pusher, finish the demoulding.
The temperature of its described workpiece in process is 800 ℃ to 900 ℃.
The present invention can disposablely finish side cut, the punching operation to big-and-middle-sized diesel engine connecting bar forging, having solved problems such as the labor strength that big-and-middle-sized in the past diesel engine connecting bar forging is cut edge, the punching operation needs multiplex's kind, multiple working procedure to cause is big, waste resource, production cycle length effectively, is that the condition that provides of producing fast in enormous quantities is provided such workpiece.
Description of drawings
Fig. 1 is composite die assembling schematic diagram front among the present invention;
Fig. 2 is composite die assembling schematic diagram side among the present invention;
Fig. 3 puts the workpiece schematic diagram for the present invention;
Fig. 4 finishes schematic diagram for the present invention's operation of cutting edge;
Fig. 5 finishes schematic diagram for punching operation of the present invention;
Fig. 6 finishes schematic diagram for the demoulding of the present invention.
Reference numeral: 1-punch, 2-clamper, 3-drag link mechanism, 3-1-upper connecting rod, 3-2-lift head, 3-3-lower link, 3-4-U template, 3-5-bolt and nut, 3-6-slip slotted eye, 4-die, 5-die holder, 6-big end hole drift, 7-big end hole punch holder, 8-microcephaly hole drift, 9-microcephaly hole punch holder, 10-holder part dish, 11-pusher, 12-press base, 13-workpiece.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is further described:
A kind of composite die that is used for connecting rod forging edge-cutting and hole-punching as depicted in figs. 1 and 2, comprise: the holder part dish 10 that be fixed in punch 1 on the forcing press top clamper 2, is fixed in die 4 on the press base 12, is fixed in big end hole punch holder 7 and big end hole drift 6, microcephaly hole punch holder 9 and microcephaly hole drift 8 on the press base 12, is connected with clamper 2 by pull bar 3 by die holder 5 and be fixed in pusher 11 on the holder part dish 10, it is characterized in that: punch 1 moves back and forth between top dead centre and lower dead center with clamper 2 knee-actions; The top height of described drift 6,8 is lower than the last cutting edge of die 4, and both differences in height are greater than the flash thickness of workpiece 13; Holder part dish 10 and pusher 11 together move up and down with clamper 2 and punch 1.
This wherein, accurately locate for keeping workpiece 13 balances, the edge shape of the punch 1 in the described compound die and the top of workpiece 13 coupling, the bottom coupling of the shape of described pusher 11 and workpiece 13, described punch holder 7,9 and drift 6,8 then play the effect of lead in 10 risings of holder part dish, workpiece 13 knockout courses, avoid the workpiece 13 and the cutting edge of die 4 to interfere.
Therefore stroke and holder part dish 10 stroke range and the upper and lower stop and inconsistent of stroke that move up and down need to use drag link mechanism 3 realize driving 10 motions of holder part dishes by clamper 2 because clamper 2 moves up and down.Its described drag link mechanism 3 comprises upper connecting rod 3-1 and lower link 3-3; The top of described lower link 3-3 is fixed with horizontally disposed U template 3-4, slip slotted eye 3-6 is arranged at the bottom of lower link 3-3, described holder part dish 10 is by being positioned at its side and passing the bolt and nut 3-5 of lower link 3-3 bottom slip slotted eye 3-6 and lower link 3-3 flexibly connects, and lower link 3-3 can be in slip slotted eye 3-6 length range and 10 relative motions of holder part dish; Described upper connecting rod 3-1 is fixedlyed connected with clamper 2 upper end, the width dimensions of its body of rod is slightly less than the A/F of described U template 3-4, there is lift the 3-2 of size greater than U template 3-4 opening the lower end of upper connecting rod 3-1, and assembling the time lifts the below that a 3-2 is positioned at lower link top U template 3-4; Upper connecting rod 3-1 can be in body of rod length range and lower link 3-3 relative motion.
, comprise and put workpiece, side cut, punching, four steps of the demoulding to a kind of connecting rod forging edge-cutting and hole-punching process shown in Figure 6 as Fig. 3, it is characterized in that: described side cut, punching two procedures on a cover composite die once property finish:
(1) workpiece 13 places on the foregoing die 4;
(2) foregoing punch 1 is descending, intersects the side cut operations of finishing workpiece 13 with described die 4;
(3) foregoing workpiece 13 falls on foregoing big end hole drift 6 and the microcephaly hole drift 8, along with described punch 1 continuation is descending, finishes the punching operation to described workpiece 13, and workpiece 19 falls on the foregoing pusher 16;
(4) described punch 1 comes downwards to and goes upward to top dead centre after bottom dead center immediately, and the pusher 11 that is fixed on the foregoing holder part dish 10 also goes upward to workpiece 13 extracting positions thereupon, and workpiece 13 is ejected by described pusher 11, finishes the demoulding.
(5) at this moment aforesaid clamper 2 comes downwards to the punch 1 that is fixed thereon and goes upward to top dead centre after bottom dead center immediately, aforesaid holder part dish 10 and the pusher 11 that is fixed thereon also go upward to the extracting position of workpiece 13 thereupon by aforesaid drag link mechanism 3, workpiece 13 is under the guiding of described big end hole punch holder 7 and the big end hole drift 6 that is fixed thereon, microcephaly hole punch holder 9 and the microcephaly hole drift 8 that is fixed thereon, eject by described pusher 11, finish the demoulding.
The temperature of workpiece of the present invention in process is 800 ℃ to 900 ℃, and in the present embodiment, through repetition test, the temperature in the process of workpiece is preferably 800 ℃.
Claims (4)
1. composite die that is used for connecting rod forging edge-cutting and hole-punching, comprise: the holder part dish that be fixed in punch on the clamper of forcing press top, is fixed in die on the press base, is fixed in the punch holder on the press base and is fixed in drift on the punch holder, is connected with clamper by drag link mechanism by die holder and be fixed in pusher on the holder part dish, it is characterized in that: punch moves back and forth between top dead centre and lower dead center with forcing press clamper knee-action; Described drift top height is lower than the last cutting edge of die, and both differences in height are greater than the flash thickness of workpiece; Holder part dish and pusher move up and down with clamper and punch by drag link mechanism.
2. a kind of composite die that is used for connecting rod forging edge-cutting and hole-punching as claimed in claim 1, its described punch edge shape and workpiece top coupling, the shape of described pusher and workpiece bottom coupling.
3. connecting rod forging edge-cutting and hole-punching process, utilize a kind of composite die that is used for connecting rod forging edge-cutting and hole-punching as claimed in claim 1 to realize, comprise and put workpiece, side cut, punching, four steps of the demoulding, it is characterized in that: described side cut, punching two procedures on a cover composite die once property finish:
Workpiece places on the die described in claim 1;
Punch described in claim 1 is descending, intersects with described die and finishes the side cut operation;
Workpiece falls on the drift described in claim 1, along with described punch continues descendingly, finishes the punching operation, and workpiece falls on the pusher described in claim 1;
Clamper as claimed in claim 1 came downwards to the punch that is fixed thereon and went upward to top dead centre after bottom dead center immediately this moment, holder part dish described in claim 1 also goes upward to the workpiece extracting position with the pusher that is fixed thereon by drag link mechanism as claimed in claim 1 thereupon, workpiece is under the guiding of described punch holder and the drift that is fixed thereon, eject by described pusher, finish the demoulding.
4. a kind of connecting rod forging edge-cutting and hole-punching process as claimed in claim 3, the temperature of its described workpiece in process is 800 ℃ to 900 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102368758A CN102294404A (en) | 2011-08-18 | 2011-08-18 | Process method for trimming and punching connecting rod class forged piece by utilizing composite die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102368758A CN102294404A (en) | 2011-08-18 | 2011-08-18 | Process method for trimming and punching connecting rod class forged piece by utilizing composite die |
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| Publication Number | Publication Date |
|---|---|
| CN102294404A true CN102294404A (en) | 2011-12-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102368758A Pending CN102294404A (en) | 2011-08-18 | 2011-08-18 | Process method for trimming and punching connecting rod class forged piece by utilizing composite die |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273902A (en) * | 2017-12-20 | 2018-07-13 | 上海交通大学 | Metal blank local feature manufacturing process and device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2567783B2 (en) * | 1992-04-28 | 1996-12-25 | 株式会社アイピーシー | Engine manifold flange manufacturing method |
| CN1733385A (en) * | 2005-07-19 | 2006-02-15 | 兰州理工大学 | Punching-pressing composite mould |
| CN200957440Y (en) * | 2006-05-30 | 2007-10-10 | 山东建筑大学 | Composite die carriage with edging, punching and hot-correcting functions for hot forging piece |
| CN102029323A (en) * | 2009-09-29 | 2011-04-27 | 中煤张家口煤矿机械有限责任公司 | Ring forge piece punching and cutting composite type mould |
| CN202239230U (en) * | 2011-08-18 | 2012-05-30 | 南车资阳机车有限公司 | Composite die for trimming and punching connecting rod forgings |
-
2011
- 2011-08-18 CN CN2011102368758A patent/CN102294404A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2567783B2 (en) * | 1992-04-28 | 1996-12-25 | 株式会社アイピーシー | Engine manifold flange manufacturing method |
| CN1733385A (en) * | 2005-07-19 | 2006-02-15 | 兰州理工大学 | Punching-pressing composite mould |
| CN200957440Y (en) * | 2006-05-30 | 2007-10-10 | 山东建筑大学 | Composite die carriage with edging, punching and hot-correcting functions for hot forging piece |
| CN102029323A (en) * | 2009-09-29 | 2011-04-27 | 中煤张家口煤矿机械有限责任公司 | Ring forge piece punching and cutting composite type mould |
| CN202239230U (en) * | 2011-08-18 | 2012-05-30 | 南车资阳机车有限公司 | Composite die for trimming and punching connecting rod forgings |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108273902A (en) * | 2017-12-20 | 2018-07-13 | 上海交通大学 | Metal blank local feature manufacturing process and device |
| CN108273902B (en) * | 2017-12-20 | 2019-11-01 | 上海交通大学 | Metal blank local feature manufacturing process and device |
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Application publication date: 20111228 |