CN105127343A - Flash-free forging method of cylinder lug - Google Patents
Flash-free forging method of cylinder lug Download PDFInfo
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- CN105127343A CN105127343A CN201510488793.0A CN201510488793A CN105127343A CN 105127343 A CN105127343 A CN 105127343A CN 201510488793 A CN201510488793 A CN 201510488793A CN 105127343 A CN105127343 A CN 105127343A
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Abstract
The invention provides a flash-free forging method of a cylinder lug. The flash-free forging method employs special forging equipment and comprises the following specific steps of 1) a pre-forging process including that a heated round bar is symmetrically put in the die cavity of a lower pre-forging die, an upper pre-forging die and the lower pre-forging die are locked by a wedge die-locking mechanism of the special forging equipment after the upper pre-forging die and the lower pre-forging die are assembled, and then two upsetting mandrels are driven by a left electric screw mechanism and a right electric screw mechanism to extrude and upset the two ends of the round bar to form a pre-forged piece; and 2) a finish-forging process including that the pre-forged piece is put in the die cavity of a lower finish-forging die, an upper finish-forging die and the lower finish-forging die are locked by the wedge die-locking mechanism of the special forging equipment after the upper finish-forging die and the lower finish-forging die are assembled, and then two extruding mandrels are driven by the left electric screw mechanism and the right electric screw mechanism to extrude the pre-forged piece serving as a blank to fill the die cavity so as to obtain a finish-forged blank. Through the application of the flash-free forging method, during the forging process of the cylinder lug, no flash is generated, the weight of raw material can be reduced, and the purpose of reducing the consumption of the raw material is achieved.
Description
Technical field
The present invention is a kind of forging method of oil cylinder hanger, the method for the specifically non-trimming forging of oil cylinder hanger in engineering hydraulic cylinder.
Background technology
Oil cylinder hanger is one of critical piece of engineering hydraulic cylinder, the at present forging process of oil cylinder hanger as shown in Figure 1: by the oil cylinder hanger blocking patrix be arranged on large tonnage forging press slide block under forging press dynamic action vertically downward, pressure is applied to larger diameter circle blank after the heating be placed on oil cylinder hanger blocking counterdie, after blocking patrix and blocking counterdie close, obtains pre-forging; Again pre-forging is put on finish-forging counterdie and on finish-forging die, obtains the oil cylinder hanger blank with very large overlap and thicker middle gross weight and very large draft angle by above step again.This oil cylinder hanger blank forging method, be difficult to meet the requirement of forging industry energy conservation and lowering consumption, reducing costs, raise the efficiency, there is a following difficult problem anxious to be resolved: because blank shape size is comparatively large and central hollow structure need be produced with large tonnage forging press, forging work step is long, just need to drop into more equipment, cause equipment investment fund and power consumption is all very large; In order to ensure that blank can be full of the thinner round bar Die of larger diameter loop configuration in the middle of blank and two ends, forging has been selected thicker diameter circle blank or has been increased jumping-up work step gathering stock blank, just causes stock utilization lower; In order to be conducive to the demoulding in current oil cylinder hanger forging process, forging annular inner wall arranges larger gradient, and blank not only weighs, and later stage finished product processing allowance is very large, and production efficiency is low especially.
Summary of the invention
In order to overcome existing oil cylinder hanger rough forging many weak points in process of production, save equipment investment and energy consumption, reduce material cost and production cost, the present invention proposes a kind of non-trimming forging method of oil cylinder hanger.
Technical scheme of the present invention is: a kind of non-trimming forging method of oil cylinder hanger, the structure of the special forging equipment related to is: comprise left column, right column, upper beam, underbeam, slide block, main hydraulic cylinder, bottom knockout hydraulic cylinder, left column, right column, upper beam, underbeam form frame, slide block is led on left column, right column by guiding pair, main hydraulic cylinder is arranged on upper beam, and main hydraulic cylinder drives slide block; Bottom knockout hydraulic cylinder is arranged on below underbeam;
Left column, right column are separately installed with left electric screw mechanism, right electric screw mechanism; The structure of left electric screw mechanism, right electric screw mechanism is identical, concrete structure is: give flywheel through one-level gear power transmission by two motors, give screw pair power transmission again by flywheel, then give slide block by screw pair power transmission, thus realize Power output;
Voussoir, right fixing voussoir are fixed in the left side that is respectively equipped with above of slide block; Be provided with voussoir clamping mechanism below upper beam, voussoir clamping mechanism comprises left voussoir clamping mechanism, right voussoir clamping mechanism, and left voussoir clamping mechanism is made up of left side small cylinder, left movable wedge, and left side small cylinder drives left movable wedge; Right voussoir clamping mechanism is made up of right side small cylinder, right movable wedge, and right side small cylinder drives right movable wedge; The upper surface of left movable wedge, the upper surface of right movable wedge are slidably matched with the lower surface of upper beam respectively;
During use, slide block moves down and puts in place, voussoir clamping mechanism locking sliding block, the tension force produced when overcoming forging and stamping; Left electric screw mechanism, right electric screw mechanism, laterally realize crushing failure at high speed forging;
The concrete steps of non-trimming forging are as follows:
1), pre-forging process: heating round bar symmetry put into blocking counterdie die cavity, the slide block of special forging equipment drives pre-forging patrix to move fast and counterdie carries out matched moulds, after matched moulds, the voussoir clamping mechanism of special forging equipment is to patrix, counterdie carries out locked mode, then left, You Liang electric screw mechanism drives the two ends of two jumping-up plug extruding jumping-up round bars, form pre-forging, then two electric screw mechanisms drive two jumping-up plug returns, the voussoir clamping mechanism return of special forging equipment, slide block drives pre-forging patrix return, complete pre-forging process,
2), finish-forging technique: pre-forging is put into finish-forging counterdie die cavity, the slide block of special forging equipment drives finish-forging to make, and patrix is mobile fast carries out matched moulds with bed die, after matched moulds, the voussoir clamping mechanism of special forging equipment is to patrix, counterdie carries out locked mode, then left, You Liang electric screw mechanism drives two extruding plugs, extruding pre-forging makes blank be full of die cavity, obtain whole rough forging, then two electric screw mechanisms drive two extruding plug returns, the voussoir clamping mechanism return of special forging equipment, slide block drives finish-forging to make patrix return, complete whole forging processes.
The invention has the beneficial effects as follows: the present invention is in oil cylinder hanger forging process in application, pre-forging closes jumping-up by jumping-up drift after Preform Die matched moulds to have extruded, finish-forging blank is obtained after being full of die cavity by left and right two pre-forging of extruding drift sealing extrusion after finish-forging die matched moulds, because extruding drift is not with pattern draft, overlap is not produced in forging process, just can reduce raw-material weight, reach the object reducing raw materials consumption.Apply this forging method and carry out oil cylinder hanger forging, equipment investment can be made to save more than 60%, forging blank loss of weight about about 10%, save material about 30%.
Accompanying drawing explanation
Fig. 1 is oil cylinder hanger blahk structure sketch of the present invention.
Fig. 2 is the forging pressure machine equipment schematic diagram that the present invention relates to.
Fig. 3 is the special forging equipment right view that the present invention relates to.
Fig. 4 is the three-dimensional sketch of Preform Die of the present invention and blank.
Fig. 5 is the three-dimensional sketch (component names is as follows) of finish-forging die of the present invention and pre-forging.
Fig. 6 is the three-dimensional sketch (component names is as follows) of mould after the present invention forges and finish-forging part.
Wherein: 1 is left column; 2 is left electric screw mechanism; 3 is left side small cylinder; 4 is left movable wedge; 5 is left fixing voussoir; 6 is main hydraulic cylinder; 7 is upper beam; 8 is right movable wedge; 9 is right fixing voussoir; 10 is slide block; 11 is right side small cylinder; 12 is right electric screw mechanism; 1201 is screw pair; 1202 is slide block; 1203 is flywheel; 1204 is motor; 1205 is one-level gear; 13 is right column; 14 is bottom knockout hydraulic cylinder; 15 is underbeam; 17 is blocking patrix; 18 is blocking counterdie; 19 is circle blank; 20 is left jumping-up drift; 21 is right jumping-up drift; 22 is pre-forging; 23 is finish-forging counterdie; 24 is finish-forging patrix; 25 is left extruding drift; 26 is right extruding drift; 27 is the oil cylinder hanger blank of final forging molding.
Detailed description of the invention
As shown in Figure 1, be oil cylinder hanger blahk structure figure of the present invention.
Special forging equipment as shown in Figure 2, comprise left column 1, right column 13, upper beam 7, underbeam 15, slide block 10, main hydraulic cylinder 6, bottom knockout hydraulic cylinder 14, left column 1, right column 13, upper beam 7, underbeam 15 form frame, slide block 10 is led on left column 1, right column 13 by guiding pair, main hydraulic cylinder 6 is arranged on upper beam 7, and main hydraulic cylinder 6 drives slide block 10; Bottom knockout hydraulic cylinder 14 is arranged on below underbeam, left column, right column is separately installed with left electric screw mechanism 2, right electric screw mechanism 12; Voussoir 5, right fixing voussoir 9 are fixed in the left side that is respectively equipped with above of slide block; Be provided with voussoir clamping mechanism below upper beam, voussoir clamping mechanism comprises left voussoir clamping mechanism, right voussoir clamping mechanism, and left voussoir clamping mechanism is made up of left side small cylinder 3, left movable wedge 4, and left side small cylinder 3 drives left movable wedge 4; Right voussoir clamping mechanism is made up of right side small cylinder 11, right movable wedge 8, and right side small cylinder 11 drives right movable wedge 8; The upper surface of left movable wedge 4, the upper surface of right movable wedge 8 are slidably matched with the lower surface of upper beam 7 respectively;
During use, slide block 10 moves down and puts in place, voussoir clamping mechanism locking sliding block, the tension force produced when overcoming forging and stamping; Left electric screw mechanism, right electric screw mechanism laterally realize crushing failure at high speed forging.
As shown in Figure 2 and Figure 3, in the present invention, the structure of left electric screw mechanism and right electric screw mechanism is identical, the structure of right electric screw mechanism is: by two motors 1204 through one-level gear 1205 power transmission to flywheel 1203, by flywheel 1203 again power transmission to screw pair 1201, again by screw pair 1201 power transmission to slide block 1202, thus realize the Power output of electric screw mechanism.
Bottom knockout hydraulic cylinder according to different products, can adjust angle of inclination.
The present invention adopt special forging equipment to be as shown in Figure 2 a kind of can carry out matched moulds by vertical downward movement, matched moulds two oil cylinders put in place on rear left and right two column drive chock to carry out locked mode respectively, are carried out the forcing press of crushing failure at high speed after locked mode by two electric screw press structures of left and right transverse movement.Due to the use of above-mentioned special equipment, the present invention's oil cylinder hanger blank produced as shown in Figure 3 can cancel the pattern draft of circular ring structure inner hole wall.
In the present invention, the structure of described left electric screw mechanism and right electric screw mechanism is prior art, has two kinds of situations:
The first can be the screw conveyer of direct-drive electric screw press, comprises motor, the flywheel by motor direct-drive, the screw rod be fixed on flywheel, the slide block that driven by screw pair by screw rod;
The second, can be through the screw conveyer of the electric screw press that one-level gear transmits, comprise multiple motor, the rotating shaft of multiple motor is fixed with travelling gear, travelling gear engages with the edge of flywheel, realizes power transmission; Screw rod is fixedly connected with flywheel, the slide block driven by screw pair by screw rod.
Embodiment: as Fig. 4, Fig. 5, shown in Fig. 6, describe oil cylinder hanger forging process in detail: during production, heating round blank 19 symmetry put into blocking counterdie 18 die cavity, forging pressure equipment (adopt the special forging equipment shown in Fig. 2) slide block is under main hydraulic cylinder dynamic action vertically downward, blocking patrix 17 and blocking counterdie 18 is driven to close, when blocking patrix 17, after blocking counterdie 18 is closed, formed on blocking by the voussoir clamping mechanism of special forging equipment, the locked mode of counterdie, then left, You Liang electric screw mechanism promotes left jumping-up drift 20 fast, right jumping-up drift 21(is left, right jumping-up drift is determined according to oil cylinder hanger bar portion diameter, make) apply to carry out closed jumping-up extruding towards the power inside die cavity to blank, then electric screw mechanism drives two jumping-up drift returns, the voussoir clamping mechanism return of special forging equipment, last slide block drives blocking patrix 17 return, complete the pre-forging 22 shown in Fig. 5 that blank blocking obtains non-trimming, again pre-forging 22 is put into the die cavity of finish-forging counterdie 23, on the forging equipment that another is identical with blocking, slide block is under main hydraulic cylinder dynamic action vertically downward, finish-forging patrix 24 is driven to close with finish-forging counterdie 23, after matched moulds, finish-forging patrix 24 is formed by the voussoir clamping mechanism of special forging equipment, the locked mode of counterdie 23, now left, You Liang electric screw mechanism promotes left extruding drift 25 fast, right extruding drift 26 applies pressure to pre-forging 22 makes blank be full of die cavity while squeezing out blank circular ring structure, then electric screw mechanism drives two extruding drift returns, the voussoir clamping mechanism return of special forging equipment, last slide block drives finish-forging patrix 24 return, obtain the oil cylinder hanger blank 27 of non-trimming as shown in Figure 6, complete forging process.
Claims (1)
1. the non-trimming forging method of an oil cylinder hanger, it is characterized in that: the structure of the special forging equipment related to is: comprise left column, right column, upper beam, underbeam, slide block, main hydraulic cylinder, bottom knockout hydraulic cylinder, left column, right column, upper beam, underbeam form frame, slide block is led on left column, right column by guiding pair, main hydraulic cylinder is arranged on upper beam, and main hydraulic cylinder drives slide block; Bottom knockout hydraulic cylinder is arranged on below underbeam;
Left column, right column are separately installed with left electric screw mechanism, right electric screw mechanism; The structure of left electric screw mechanism, right electric screw mechanism is identical, concrete structure is: give flywheel through one-level gear power transmission by two motors, give screw pair power transmission again by flywheel, then give slide block by screw pair power transmission, thus realize Power output;
Voussoir, right fixing voussoir are fixed in the left side that is respectively equipped with above of slide block; Be provided with voussoir clamping mechanism below upper beam, voussoir clamping mechanism comprises left voussoir clamping mechanism, right voussoir clamping mechanism, and left voussoir clamping mechanism is made up of left side small cylinder, left movable wedge, and left side small cylinder drives left movable wedge; Right voussoir clamping mechanism is made up of right side small cylinder, right movable wedge, and right side small cylinder drives right movable wedge; The upper surface of left movable wedge, the upper surface of right movable wedge are slidably matched with the lower surface of upper beam respectively;
During use, slide block moves down and puts in place, voussoir clamping mechanism locking sliding block, the tension force produced when overcoming forging and stamping; Left electric screw mechanism, right electric screw mechanism, laterally realize crushing failure at high speed forging;
The concrete steps of non-trimming forging are as follows:
1), pre-forging process: heating round bar symmetry put into blocking counterdie die cavity, the slide block of special forging equipment drives pre-forging patrix to move fast and counterdie carries out matched moulds, after matched moulds, the voussoir clamping mechanism of special forging equipment is to patrix, counterdie carries out locked mode, then left, You Liang electric screw mechanism drives the two ends of two jumping-up plug extruding jumping-up round bars, form pre-forging, then two electric screw mechanisms drive two jumping-up plug returns, the voussoir clamping mechanism return of special forging equipment, slide block drives pre-forging patrix return, complete pre-forging process,
2), finish-forging technique: pre-forging is put into finish-forging counterdie die cavity, the slide block of special forging equipment drives finish-forging patrix to move fast and bed die carries out matched moulds, after matched moulds, the voussoir clamping mechanism of special forging equipment is to patrix, counterdie carries out locked mode, then left, You Liang electric screw mechanism drives two extruding plugs, extruding pre-forging makes blank be full of die cavity, obtain whole rough forging, then two electric screw mechanisms drive two extruding plug returns, the voussoir clamping mechanism return of special forging equipment, slide block drives finish-forging to make patrix return, complete whole forging processes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488793.0A CN105127343A (en) | 2015-08-12 | 2015-08-12 | Flash-free forging method of cylinder lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488793.0A CN105127343A (en) | 2015-08-12 | 2015-08-12 | Flash-free forging method of cylinder lug |
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| CN105127343A true CN105127343A (en) | 2015-12-09 |
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| CN201510488793.0A Pending CN105127343A (en) | 2015-08-12 | 2015-08-12 | Flash-free forging method of cylinder lug |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109109591A (en) * | 2018-08-31 | 2019-01-01 | 青岛航大新材料技术有限公司 | The split type V-type distance rod of aluminium alloy and its preparation process and agitating friction are welded method of completing the square |
| CN109996621A (en) * | 2016-11-03 | 2019-07-09 | 席乐有限责任两合公司 | Method for manufacturing flat link chain |
| CN112756537A (en) * | 2021-02-26 | 2021-05-07 | 辽宁北祥重工机械制造有限公司 | Near-net forming die and forming method for pump shell forging of nuclear power main pump |
| CN115415745A (en) * | 2022-09-09 | 2022-12-02 | 江苏双环齿轮有限公司 | Production process of multi-step precision die forging of shafting containing holes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6324883B1 (en) * | 1998-02-03 | 2001-12-04 | Kongsberg Automotive Asa | Method and tool for formation of an enlarged end portion of a bar |
| CN201244649Y (en) * | 2008-09-02 | 2009-05-27 | 罗建国 | Metal closed forging press using mechanical locking mould |
| CN102189206A (en) * | 2011-03-01 | 2011-09-21 | 湖北巨力锻造有限公司 | Forging technology of cylinder lifting lug of automobile |
| CN102990957A (en) * | 2011-09-16 | 2013-03-27 | 麻城纳福传动机械有限公司 | Electric screw press |
-
2015
- 2015-08-12 CN CN201510488793.0A patent/CN105127343A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6324883B1 (en) * | 1998-02-03 | 2001-12-04 | Kongsberg Automotive Asa | Method and tool for formation of an enlarged end portion of a bar |
| CN201244649Y (en) * | 2008-09-02 | 2009-05-27 | 罗建国 | Metal closed forging press using mechanical locking mould |
| CN102189206A (en) * | 2011-03-01 | 2011-09-21 | 湖北巨力锻造有限公司 | Forging technology of cylinder lifting lug of automobile |
| CN102990957A (en) * | 2011-09-16 | 2013-03-27 | 麻城纳福传动机械有限公司 | Electric screw press |
Non-Patent Citations (1)
| Title |
|---|
| 纪澜: "国外多向模锻和分模模锻的发展概况", 《锻压机械》 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996621A (en) * | 2016-11-03 | 2019-07-09 | 席乐有限责任两合公司 | Method for manufacturing flat link chain |
| CN109996621B (en) * | 2016-11-03 | 2021-09-03 | 席乐有限责任两合公司 | Method for producing a flat link chain |
| CN109109591A (en) * | 2018-08-31 | 2019-01-01 | 青岛航大新材料技术有限公司 | The split type V-type distance rod of aluminium alloy and its preparation process and agitating friction are welded method of completing the square |
| CN112756537A (en) * | 2021-02-26 | 2021-05-07 | 辽宁北祥重工机械制造有限公司 | Near-net forming die and forming method for pump shell forging of nuclear power main pump |
| CN112756537B (en) * | 2021-02-26 | 2024-05-14 | 辽宁北祥重工机械制造有限公司 | Near-net forming die and forming method for nuclear power main pump shell forging |
| CN115415745A (en) * | 2022-09-09 | 2022-12-02 | 江苏双环齿轮有限公司 | Production process of multi-step precision die forging of shafting containing holes |
| CN115415745B (en) * | 2022-09-09 | 2024-01-26 | 江苏双环齿轮有限公司 | Production process of multi-step precision die forging with hole shafting |
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Application publication date: 20151209 |