CN105081162A - Method for achieving non-flash forging of universal joint fork forging blanks - Google Patents
Method for achieving non-flash forging of universal joint fork forging blanks Download PDFInfo
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- CN105081162A CN105081162A CN201510488794.5A CN201510488794A CN105081162A CN 105081162 A CN105081162 A CN 105081162A CN 201510488794 A CN201510488794 A CN 201510488794A CN 105081162 A CN105081162 A CN 105081162A
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Abstract
The invention provides a method for achieving non-flash forging of universal joint fork forging blanks. Dedicated forging equipment is adopted, and the method comprises the following specific steps: a heated round bar material is placed into a lower die chamber, and after upper and lower dies close, a wedge mode locking mechanism of the dedicated forging equipment forms mode locking of the upper and lower dies; after mode locking, an electric screw mechanism quickly pushes a punch to extrude blanks, so as to fill the die chamber with the blanks to obtain non-flash universal joint fork blanks; finally, a material ejecting mechanism ejects the non-flash universal joint fork blanks, so as to finish the forging process. According to the method, a novel universal joint fork forging technology is adopted, firstly the dies are closed, and then the non-flash blanks are formed through extrusion, so that the forging procedures are greatly decreased, and a large amount of raw materials are saved; the technological method provided by the invention is used for carrying out forging production of the universal joint fork forging blanks, so that the equipment investment can be decreased by around 50%, and the material cost is reduced by around 15%.
Description
Technical field
The present invention relates to a kind of forging method of universal-joint fork rough forging, specifically a kind of universal-joint fork rough forging realizes the method for non-trimming forging.
Background technology
Universal-joint fork is one of the conventional vital part of transmitting torque in machinery and automotive transmission, the traditional Forging Technology work step of universal-joint fork rough forging is as shown in Figure 1 many, work step is generally: jumping-up, blocking, finish-forging, trimming, and the distortion that trimming sometimes causes also needs to increase correcting process and solves.The forging production technique of this universal-joint fork blank has following shortcoming: operation is many and complicated, and make equipment investment fund and power consumption all very large, stock utilization is low, is difficult to meet the requirement of forging industry energy conservation and lowering consumption, reducing costs, enhance productivity.
Summary of the invention
In order to overcome many weak points of existing universal-joint fork rough forging appearance in process of production, reducing material cost, saving equipment investment, the present invention proposes a kind of method that universal-joint fork rough forging realizes non-trimming forging.
Technical scheme of the present invention is: a kind of universal-joint fork rough forging realizes the method for non-trimming forging, 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;
Adopt the mode of two die joints, mould be divided into three parts, mold, bed die, drift,
The concrete steps realizing non-trimming forging are as follows: the round bar of heating is put into counterdie die cavity, the slide block of special forging equipment is under main hydraulic cylinder dynamic action vertically downward, drive patrix to move fast to close with counterdie, after upper and lower mould is closed, formed the locked mode of upper and lower mould by the voussoir clamping mechanism of special forging equipment; After locked mode, electric screw mechanism promotes drift extrusion billet fast, makes blank be full of die cavity, obtains the universal-joint fork blank of non-trimming; Then, electric screw mechanism drives drift return; Then, the voussoir clamping mechanism return of special forging equipment; Then, main hydraulic cylinder band movable slider return; Last material jacking mechanism ejects the universal-joint fork blank of non-trimming, completes forging process.
The invention has the beneficial effects as follows: adopt new universal-joint fork Forging Technology, first make mould close, rear impact extrusion forms the blank of non-trimming, has both made forging work step significantly reduce, and has again saved a large amount of raw material.Use process of the present invention to carry out the production of universal-joint fork blank forging, equipment investment can be made to save about 50%, save material cost about 15%.
Accompanying drawing explanation
Fig. 1 is the stereogram of the universal-joint fork rough forging that the present invention relates to.
Fig. 2 is the special forging 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 front view and the die joint schematic diagram of universal-joint fork rough forging of the present invention.
Fig. 5 is non-trimming forging mold structure of the present invention and blank sketch.
Fig. 6 is mould structure after the present invention forges and finish-forging blank sketch
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 universal-joint fork; 18 is the first die joint; 19 is the second die joint; 20 is patrix; 21 is counterdie; 22 is right drift; 23 is blank; .24 is non-trimming universal-joint fork blank.
Detailed description of the invention
As shown in Figure 1, be the stereogram of the universal-joint fork rough forging that the present invention relates to.
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 the major function of special forging equipment to be as shown in Figure 2: slide block (or upwards) can carry out quick-make (or opening) mould vertically downward under the dynamic action of main hydraulic cylinder; After closed (or opening) mould, two oil cylinders on left and right two columns drive voussoir can snap in (or exiting) respectively can realize locking (or unblanking) mould between upper beam and slide block; After locking (or unblanking) mould, the active drift of two electric screw press structure bands of left and right transverse movement can carry out crushing failure at high speed forging (or returning); When needing to eject forging, material jacking mechanism according to different products, can adjust the angle of inclination of ejector beam.
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: the mode adopting two die joints as shown in Figure 4,17 is universal-joint fork, and 18 is the first die joint, and 19 is the second die joint, and mould is divided into three parts (patrix 20, counterdie 21, drift 22); As shown in Figure 5, the round bar 23 of heating is put into counterdie 21 die cavity, special forging equipment (adopt the special forging equipment shown in Fig. 2) slide block is under main hydraulic cylinder dynamic action vertically downward, drive patrix 20 to move fast to close with counterdie 21, after upper and lower mould is closed, formed the locked mode of upper and lower mould by the voussoir clamping mechanism of special forging equipment; After locked mode, right electric screw mechanism promotes right drift 22 extrusion billet 23 fast, makes blank be full of die cavity; Then, electric screw mechanism drives drift return; Then, the voussoir clamping mechanism return of special forging equipment; Then, main hydraulic cylinder band movable slider return; Finally, as shown in Figure 6, material jacking mechanism ejects the universal-joint fork blank 24 of non-trimming, completes forging process, realizes the process of non-trimming forging universal-joint fork.
Claims (1)
1. a universal-joint fork rough forging realizes the method for non-trimming forging, 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;
Adopt the mode of two die joints, mould be divided into three parts, mold, bed die, drift,
The concrete steps realizing non-trimming forging are as follows: the round bar of heating is put into counterdie die cavity, the slide block of special forging equipment is under main hydraulic cylinder dynamic action vertically downward, drive patrix to move fast to close with counterdie, after upper and lower mould is closed, formed the locked mode of upper and lower mould by the voussoir clamping mechanism of special forging equipment; After locked mode, electric screw mechanism promotes drift extrusion billet fast, makes blank be full of die cavity, obtains the universal-joint fork blank of non-trimming; Then, electric screw mechanism drives drift return; Then, the voussoir clamping mechanism return of special forging equipment; Then, main hydraulic cylinder band movable slider return; Last material jacking mechanism ejects the universal-joint fork blank of non-trimming, completes forging process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510488794.5A CN105081162A (en) | 2015-08-12 | 2015-08-12 | Method for achieving non-flash forging of universal joint fork forging blanks |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510488794.5A CN105081162A (en) | 2015-08-12 | 2015-08-12 | Method for achieving non-flash forging of universal joint fork forging blanks |
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| CN105081162A true CN105081162A (en) | 2015-11-25 |
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| CN201510488794.5A Pending CN105081162A (en) | 2015-08-12 | 2015-08-12 | Method for achieving non-flash forging of universal joint fork forging blanks |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756723A (en) * | 2019-11-22 | 2020-02-07 | 湖南高致精工机械有限公司 | Transmission shaft forge piece forming process and forging die |
| CN113319238A (en) * | 2021-04-27 | 2021-08-31 | 北京机电研究所有限公司 | Multidirectional forging forming method for complex aluminum alloy transmission shaft forge piece |
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| CN2772679Y (en) * | 2005-01-05 | 2006-04-19 | 东风锻造有限公司 | Closed forging mould of disk piece |
| KR20060039819A (en) * | 2004-11-03 | 2006-05-09 | 윤동진 | Division metallic pattern for hot-forging and this use forging process |
| CN201244649Y (en) * | 2008-09-02 | 2009-05-27 | 罗建国 | Metal closed forging press using mechanical locking mould |
| CN201960749U (en) * | 2010-12-30 | 2011-09-07 | 蔡振胜 | Novel screw press |
| CN102990957A (en) * | 2011-09-16 | 2013-03-27 | 麻城纳福传动机械有限公司 | Electric screw press |
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2015
- 2015-08-12 CN CN201510488794.5A patent/CN105081162A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5514158A (en) * | 1978-07-18 | 1980-01-31 | Nissan Motor Co Ltd | Closed extrusion molding method of bar material and device thereof |
| KR20060039819A (en) * | 2004-11-03 | 2006-05-09 | 윤동진 | Division metallic pattern for hot-forging and this use forging process |
| CN2772679Y (en) * | 2005-01-05 | 2006-04-19 | 东风锻造有限公司 | Closed forging mould of disk piece |
| CN201244649Y (en) * | 2008-09-02 | 2009-05-27 | 罗建国 | Metal closed forging press using mechanical locking mould |
| CN201960749U (en) * | 2010-12-30 | 2011-09-07 | 蔡振胜 | Novel screw press |
| 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)
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| 程俊伟: ""汽车滑动叉闭式模锻工艺研究"", 《锻压技术》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110756723A (en) * | 2019-11-22 | 2020-02-07 | 湖南高致精工机械有限公司 | Transmission shaft forge piece forming process and forging die |
| CN113319238A (en) * | 2021-04-27 | 2021-08-31 | 北京机电研究所有限公司 | Multidirectional forging forming method for complex aluminum alloy transmission shaft forge piece |
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