CN103934405A - Special crankshaft multi-bend reversing machine - Google Patents
Special crankshaft multi-bend reversing machine Download PDFInfo
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- CN103934405A CN103934405A CN201410159231.7A CN201410159231A CN103934405A CN 103934405 A CN103934405 A CN 103934405A CN 201410159231 A CN201410159231 A CN 201410159231A CN 103934405 A CN103934405 A CN 103934405A
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Abstract
The invention provides a special crankshaft multi-bend reversing machine. A hydraulic machine is fixedly installed on a single rectangular machine body vertical support, a sliding block with an upper die part is driven through a main hydraulic cylinder in a driving mode, the sliding block is in sliding fit to stand column longitudinal sliding rails on the two sides of the machine body vertical support in a sliding mode, a lower die part is installed on a lower support, a fixed die frame and a rotary die disc which correspond to each other in an up-and-down mode are assembled in the upper die part and the lower die part, a twisting arm is pivoted between stand columns on the two sides, and a pivoting center is coaxial with the rotary die disc. According to the technical scheme, a conventional three-beam four-column main machine structure is removed, device occupied space and land occupied areas are greatly reduced, operation space is accordingly released to the maximum degree, it is important that the twisting structure has the advantages that the power is high, and the maximum twisting corner is large in scope, the twisting quality and the twisting effect are guaranteed, and the machining efficiency is improved.
Description
Technical field
What patent application of the present invention related to is that plane forged steel crankshaft forge hot blank is implemented to the crankshaft torsion equipment radially reversing, and the forge hot blank that is especially suitable as automobile engine forged steel crankshaft is turned round the Crankshaft Machining equipment of system.
Background technology
Bent axle is the key member in engine.When four cylinder engine and six cylinder engine have become today of automobile primary mobilization force device, in engine crankshaft structure, each connecting rod neck radial angle distributes different, the requirement of balance weight integrated structure, becomes processing technology and realizes the technological challenge that high efficiency, in batches industrialization, fine finishining development face.Tradition machining process mainly adopts casting, balance weight to inlay packaging technology and produces this type of complicated bent axle, but bent axle product more and more adopts forged steel material, and traditional handicraft method cannot adapt to product technology development now.Early application forges processing technology, and production technology efficiency is low, technology difficulty large, product quality is difficult to ensure.
Chinese patent CN201470801U discloses a kind of " Miniature torsion module special for crank shaft ", it has designed a kind of small pressure mould that is installed on usual pressure lathe, operation principle is to be forced after upper and lower half module make-up by press machine tool pressure head, continue in the process of exerting pressure, pressure is all married again and is hinged on the support arm that reverses module edge, drive and reverse module revolution, the angle that completes crank-shaft link neck is reversed.A lathe applied pressure part is that matched moulds is required, another part diffused shifting is to support arm, because support arm support strength is limit, design feature causes torsional moment little, limit by mould structure and big or small factor, be only suitable in processing small crank product, as three-throw crankshaft, only as usual pressure lathe corollary apparatus.Moreover, after the female die of lower dress bent axle blank and upper mold section make-up to before turning round and having made, lathe applied pressure is limited, support arm moment is little, be difficult to ensure that upper and lower torsion module is in complete matched moulds state, matched moulds subenvironment is not good enough, and matched moulds is turned round discontinuity processed, and double factor has affected to be turned round quality processed and turn round processing effect processed; Another technical problem is: this mould is enclosed construction, can only use as certain single bent axle product distortion processing, can not serve as the multiple bent axle product processing of seriation and use mould, changes product cost high, cannot adapt to the user demand of industry processization batch production.
Another Chinese patent CN203091659U provides a kind of bent axle to turn round and has turned special machine, and it has adopted three conventional beam four post main machine frame structures, moves to reach in the system turned round the object that stable support is provided.But assembling parts is huge, entirety takes up room and floor space is large, can be subject to again great limitation in operating space, strengthen the distance between conveying device and its operating desk, cost cost is also high.
Summary of the invention
The goal of the invention of patent application of the present invention is to provide a kind of bent axle that is suitable for all kinds of automobile engine crankshaft distortion processing to turn torsion special machine more, it has that the volume of taking is little, operating space is roomy, turn round that brake force is powerful, crudy is high, is especially applicable to the technological merit of the various bent axle product processing of seriation.More the bent axle that patent application of the present invention provides turns and reverses special machine technical scheme, its main technical content is: a kind of bent axle turns torsion special machine more, hydraulic press is fixedly mounted in the stand of single rectangular body, main hydraulic cylinder drives the slide block that is assembled with upper mold portion, slide block is slidably fitted on the longitudinal slide rail of body stand two heel post, lower mold portion is arranged on lower carriage, on, in lower mold portion, be assembled with, the cover half frame of lower correspondence and revolution mould, turning round arm is articulated between two heel posts, pivot joint center and revolution mould coaxial line, turning round arm tie-beam is fixed on revolution mould place edge and turns round between arm girder, torsion power part drives to be connected in to be turned round on arm.
In above-mentioned overall technical architecture, also be provided with workpiece ejecting mechanism, workpiece ejection part comprises ejection part and lower ejection part, upper ejection part two on power part symmetry be fixed on the pedestal of slide block center line both sides, upper power part push rod passes slide block, is placed in the gap between cover half frame and revolution mould, the push rod of lower ejection part is fixedly installed on and ejects on crossbeam, eject crossbeam level, install in the lower power part press rods on two columns at two ends, push rod is placed in cover half frame and the gap of revolution between mould.
More the bent axle that patent application of the present invention provides turns and reverses special machine technical scheme, to be applicable to including four turning, six to turn and the process equipment processed of turning round that turns all kinds of automobile engine crankshafts structure more, it is powerful that it reverses power, three conventional beam four post main machine structures under this prerequisite, are abandoned, equipment occupation space and floor space be greatly reduction all, therefore operating space obtains maximum release, and former and later two operating surfaces have loose operating space, has greatly reduced workpiece fed distance; More crucial is, the setting of torsion beam, in upper and lower mould portion pressure matched moulds, implement high pulling torque twist operation power, its power is powerful, and maximum twist angular range is large, can reach 63 °, stressed concentrated, stressed even, hydraulic press cylinder tonnage can reach 250 tons, and moment of torsion tonnage can reach 160 tons of nominals, ensure to turn round quality processed and turned round effect processed, also having effectively raised working (machining) efficiency.In addition, cover half frame, turn round mould and turn round arm and adopt detachable structure, can be reequiped easily adjustment according to the bent axle product of different types of structure, enable as each veriety crankshaft forging, especially the torsion process equipment of complex form forging, has met industry process batch production and seriation bent axle product process requirements.
Brief description of the drawings
Fig. 1 is the general assembly front view of the present patent application.
Fig. 2 is the general assembly side view of the present patent application.
Fig. 3 is a side stereogram of matched moulds initial state.
Fig. 4 is the opposite side stereogram that plane bent axle falls into die cavity.
Fig. 5 be upper and lower mould portion not the structure of matched moulds figure is set.
The structure of Fig. 6 after for upper and lower mould portion matched moulds arranges figure.
Detailed description of the invention
The bent axle that patent application of the present invention provides turns torsion special machine more, for single rectangular body stand assembled configuration, its body stand is by two heel posts 41, upper Web beam 42 and underframe 44 form, in this enforcement structure, described stand is integrated casting and makes, there is more good structural stability and rigidity, hydraulic press 1 is fixedly mounted on the upper Web beam 42 of body stand, main hydraulic cylinder 2 in hydraulic press 1 drives slide block 6, on slide block 6, be assembled with upper mold portion, longitudinal slide rail 8 of the both sides of slide block 6 and column 41 is slidably matched, lower mold portion is arranged on lower carriage 19, on, lower mold portion is assembled with, the upper cover half frame 7 of lower correspondence and lower cover half frame 11, upper rotary mould 10 and lower mold rotation dish 12.Upper cover half frame 7 is detachably fixedly mounted on the base 14 of slide block 6 bottoms, lower cover half frame 11 is detachably fixedly mounted on lower carriage 19, between upper rotary mould 10 edges and base 14, circular arc directive slide track, rolling revolving run on two upper roll wheels 100 of upper mold portion center line symmetry, lower mold rotation dish 12 along and lower carriage 19 between circular arc directive slide track, by two lower roll wheel 120 rolling bearings of lower mold portion center line symmetry, upper mold portion center line overlaps with lower mold portion center line.Main hydraulic cylinder 2 drives after the descending matched moulds of slide block 6, and the upper and lower revolution mould 10,12 of each torsiversion and the revolution mould of each torsiversion have same revolution axle center.In the mold core cavities of upper and lower mould portion, be fixed with upper mold core 15 and lower mold core 18, in upper and lower core rod 15,18, be provided with after upper and lower mould portion matched moulds and forge die cavity corresponding to bent axle part shape with plane.Upper mold portion, under the driving of main hydraulic cylinder 2, drives descending matched moulds or up parting by slide block 6.
Upper reset cylinder 5 is fixedly installed on slide block 6, and as shown in Figure 5 and Figure 6, rotary table 23 is fixed on the lateral margin mounting groove 3 of upper rotary mould 10, and the press rods top of upper reset cylinder 5 is articulated and connected on rotary table 23, impels upper rotary mould 10 to reset and turns round.The revolution of lower mold rotation dish 12 is controlled by turns round arm.Turn round arm and be articulated between two heel posts 41, its pivot joint center and lower mold rotation dish centre of gyration coaxial line.Turn round arm tie-beam 20 and be fixedly connected on locating edge mounting groove 16 and turning round between arm girder 17 of lower mold rotation dish 12, two curb girders of turning round arm girder 17 are articulated between two heel posts 41, torsion hydraulic cylinder 21 drives to be connected in as torsion power part and turns round on arm, and torsion power is provided.Turn labyrinth bent axle for what there is front and rear connecting rods neck more, as shown in Figure 2, Figure 3 and Figure 4, be positioned at that body stand is forward and backward is provided with the forward and backward arm of turning round, coaxially be articulated on heel post 41, turn round arm as the twist operation of front rod neck, rear connection neck respectively, each is turned round arm driving and is connected with two torsion hydraulic cylinders.On heel post 41, be fixedly installed and turn round utmost point positive stop 24 processed, as shown in Figure 2, turning round arm is to start upwards to reverse from position shown in lower dotted line, turns round positive stop 24 processed and is arranged at the limes superiors position of turning round arm, and can require to adjust according to actual design, to reach required design angle.
In concrete main frame structure as depicted in figs. 1 and 2, be also provided with workpiece ejecting mechanism, for ejecting reversing the bent axle being stuck in die cavity after termination, be convenient to, by miscellaneous equipment, bent axle is shifted out to this working position.Described workpiece ejection part comprises ejection part and lower ejection part.In upper ejection part, as upper power part two on eject hydraulic cylinder 4 symmetries and be fixed on the pedestal of slide block center line both sides, the push rod that above ejects hydraulic cylinder 4 passes slide block 6, is arranged at the gap between cover half frame 8 and upper rotary mould 10.Gap, the lower end of chord position between lower cover half frame 11 and lower mold rotation dish 12 that eject of lower ejection part is fixedly installed on and ejects on crossbeam 22, as under eject power part the hydraulic cylinder 13 that ejects for twice be mounted on respectively two columns outsides, eject crossbeam 22 both ends horizontal states and be hinged on the press rods that ejects hydraulic cylinder 13 for twice.Upper eject hydraulic cylinder 4 and under eject under the power drive of hydraulic cylinder 13, eject die cavity by being tightly stuck in the bent axle that has completed twisting formation in die cavity, in addition, Plane Curved forging shaft was accepted in the effect of lower ejection part in addition before forging and stamping work, and hold up and turn round and made workpiece after end-of-job, so that feeding.
Main hydraulic cylinder 2, reverse hydraulic cylinder 21, on eject hydraulic cylinder 4, under eject hydraulic cylinder 13 and upper reset cylinder 5, under electric part control, reverse coordination operation in technique in entirety, the each link of operating procedure is connected, and realizes the operation to sending into the bent axle plane forging matched moulds that puts in place, torsion, parting, ejecting, reset.By the structural adjustment of turning of processed bent axle, cover half frame, revolution mould and core rod are installed, upper and lower mould portion correspondence more.Startup work, main hydraulic cylinder 2 promotes slide block 6, on final, lower mold portion matched moulds, Plane Curved forging shaft pressure in thermoplastic high temperature is clamped in die cavity, reverse hydraulic cylinder 21 with rear drive, reverse before hydraulic cylinder 21 power drives, after turn round arm, knob make-up upper, crank-shaft link neck in lower mold rotation dish and die cavity, bent axle under the overall plastic sexual state of distortion, stop executing after controlling angle and turn round operation when reaching turning round of technical requirement, at this moment turning round arm has leaned and is turning round on utmost point positive stop 24 processed, system is carried out pressurize according to setup pressure value (comprise longitudinal pressure and turn round brake force) and dwell time to turning round koji axle again, admittedly mould the system of the turning round position reaching, finally drive and move slide block 6 and start parting by main hydraulic cylinder 2, the work of upper reset cylinder 5 is that upper rotary mould 10 is resetted, in startup, eject hydraulic cylinder 4, eject the workpiece that is tightly stuck in die cavity, reverse drive is reversed hydraulic cylinder 21 simultaneously, lower mold rotation dish 12 is resetted, under driving, eject hydraulic cylinder 13, the workpiece that is tightly stuck in die cavity is ejected, thoroughly discharge crankshaft workpiece, take out workpiece by conveying equipment from the opposite side of this equipment.In the running of actual production line, the productive temp of this link is about 45 seconds.
Claims (6)
1. a bent axle turns torsion special machine more, it is characterized in that hydraulic press (1) is fixedly mounted in the stand of single rectangular body, main hydraulic cylinder (2) drives the slide block (6) that is assembled with upper mold portion, slide block is slidably fitted on the longitudinal slide rail of body stand two heel posts (41), lower mold portion is arranged on lower carriage (19), on, in lower mold portion, be assembled with, the cover half frame of lower correspondence and revolution mould, turning round arm is articulated between two heel posts (41), pivot joint center and revolution mould coaxial line, turning round arm tie-beam (20) is fixed on revolution mould place edge and turns round between arm girder (17), torsion power part drives to be connected in to be turned round on arm.
2. bent axle according to claim 1 turns torsion special machine more, it is characterized in that being also provided with workpiece ejecting mechanism, workpiece ejection part comprises ejection part and lower ejection part, upper ejection part two on power part symmetry be fixed on the pedestal of slide block center line both sides, upper power part push rod passes slide block, is placed in the gap between cover half frame and revolution mould, the push rod of lower ejection part is fixedly installed on and ejects on crossbeam (22), eject crossbeam level, install in the lower power part press rods on two columns at two ends, push rod is placed in cover half frame and the gap of revolution between mould.
3. bent axle according to claim 1 and 2 turns torsion special machine more, it is characterized in that the upper rotary mould (10) that turns round mould runs on two upper roll wheels (100) of upper mold portion center line symmetry along circular arc directive slide track, rolling revolving.
4. bent axle according to claim 1 and 2 turns torsion special machine more, and the lower mold rotation dish (12) that it is characterized in that turning round mould is along circular arc directive slide track, by two lower roll wheels (120) rolling bearing of lower mold portion center line symmetry.
5. bent axle according to claim 1 and 2 turns torsion special machine more, it is characterized in that being fixedly installed upper reset cylinder (5) on slide block (6), rotary table (23) is fixed on the lateral margin mounting groove (3) of upper rotary mould (10), and the press rods top of upper reset cylinder (5) is articulated and connected on rotary table (23).
6. bent axle according to claim 1 turns torsion special machine more, it is characterized in that being fixedly installed and turning round utmost point positive stop processed (24) on heel post (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159231.7A CN103934405A (en) | 2014-04-18 | 2014-04-18 | Special crankshaft multi-bend reversing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410159231.7A CN103934405A (en) | 2014-04-18 | 2014-04-18 | Special crankshaft multi-bend reversing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103934405A true CN103934405A (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410159231.7A Pending CN103934405A (en) | 2014-04-18 | 2014-04-18 | Special crankshaft multi-bend reversing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103934405A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817561A (en) * | 2016-05-14 | 2016-08-03 | 莱芜锻压有限公司 | Angle control torsion pincers of multi-crank-throw crankshaft |
| CN110918938A (en) * | 2019-10-18 | 2020-03-27 | 湖南科技大学 | Workpiece extrusion and torsion composite integrated forming method and forming device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB618920A (en) * | 1946-11-13 | 1949-03-01 | Clearing Machine Corp | Improvements in crankshaft twisting machines |
| GB2145018A (en) * | 1983-07-15 | 1985-03-20 | Honda Motor Co Ltd | Torsional molding apparatus for crank shafts |
| EP0530436A1 (en) * | 1991-09-05 | 1993-03-10 | Sumitomo Heavy Industries, Ltd | Twist-forming press for crank shaft or the like |
| JP2004230390A (en) * | 2003-01-28 | 2004-08-19 | Nissan Motor Co Ltd | Forging device for twist working |
| CN202356561U (en) * | 2011-12-03 | 2012-08-01 | 辽宁五一八内燃机配件有限公司 | Crank shaft upsetting die |
| CN203843092U (en) * | 2014-04-18 | 2014-09-24 | 丹东东大控制设备有限公司 | Special machine for multi-turn twisting of crankshaft |
-
2014
- 2014-04-18 CN CN201410159231.7A patent/CN103934405A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB618920A (en) * | 1946-11-13 | 1949-03-01 | Clearing Machine Corp | Improvements in crankshaft twisting machines |
| GB2145018A (en) * | 1983-07-15 | 1985-03-20 | Honda Motor Co Ltd | Torsional molding apparatus for crank shafts |
| EP0530436A1 (en) * | 1991-09-05 | 1993-03-10 | Sumitomo Heavy Industries, Ltd | Twist-forming press for crank shaft or the like |
| JP2004230390A (en) * | 2003-01-28 | 2004-08-19 | Nissan Motor Co Ltd | Forging device for twist working |
| CN202356561U (en) * | 2011-12-03 | 2012-08-01 | 辽宁五一八内燃机配件有限公司 | Crank shaft upsetting die |
| CN203843092U (en) * | 2014-04-18 | 2014-09-24 | 丹东东大控制设备有限公司 | Special machine for multi-turn twisting of crankshaft |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817561A (en) * | 2016-05-14 | 2016-08-03 | 莱芜锻压有限公司 | Angle control torsion pincers of multi-crank-throw crankshaft |
| CN110918938A (en) * | 2019-10-18 | 2020-03-27 | 湖南科技大学 | Workpiece extrusion and torsion composite integrated forming method and forming device |
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| PB01 | Publication | ||
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Application publication date: 20140723 |