CN1397392A - Technology and apparatus for machining linking-rod of engine - Google Patents
Technology and apparatus for machining linking-rod of engine Download PDFInfo
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- CN1397392A CN1397392A CN 02109756 CN02109756A CN1397392A CN 1397392 A CN1397392 A CN 1397392A CN 02109756 CN02109756 CN 02109756 CN 02109756 A CN02109756 A CN 02109756A CN 1397392 A CN1397392 A CN 1397392A
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Abstract
A cracking technology for machining the connecting rod of engine includes pressing the screw hole of connecting rod cover and the transition position between big head and rod for prestressing them, applying back pressure during the crack extension, and precisely restoring the cracked connecting rod cover and body to make then be fully engaged after cracked. Its apparatus is composed of pressing unit, cracking unit, slide block and guide block.
Description
Technical field: the present invention relates to the engine link machinery processing apparatus.
Background technology: connecting rod is the strength member of engine, the master operation of traditional machining process is that forging blank is at first rough milled, mill connecting rod two sides, and connecting rod cap and bar milled out, process the bolt hole (locating hole) on connecting rod cap and the bar respectively, distinguish the faying face of grinding connecting rod cap and bar portion again, at last the connecting rod that is assembled together is finish grinded operations such as two sides, right boring concentric reducer hole.
The connecting rod cracking technology is a kind of new technology of Machining of Connecting Rod, is that connecting rod cracking principle is to utilize the material fracture theory to the major transformation of connecting rod tradition mechanical processing technique, at first the connecting rod blank big end hole that forges is artificially produced slight crack, forms the initial crack source.On connecting rod cracking process equipment, the crank pin end pore medial surface is applied radial load then, make crackle by outwards constantly expansion of endoporus, until complete cracking.Under the condition that the plane of disruption meshes fully, penetrate bolt and be screwed to desired moment of torsion at last, remaining fine finishining is identical with traditional machining operation.
Compare with traditional manufacturing procedure, cleavage method makes the split processing of connecting rod change whole processing into, can cancel the bar in the conventional linkage processing technology and cut-out and the bar and the lower operation of this twice production efficiency of lid faying face grinding of lid.Traditional handicraft processing connecting-rod bolts hole, its bar must separate independent processing with the bolt hole that covers, and need 14 procedures altogether, and the connecting rod cracking technology is whole processing, only needs 6 procedures.Because being fit to the material of connecting rod cracking technology is fragile materials such as high-carbon steel, powder metallurgy, spheroidal graphite cast-iron, thereby gonnecting rod body is with after connecting rod cap separates, its plane of disruption has indenting surface characteristics, the parting surface of bar and lid can reach engagement completely after cracking, need not increases extra bolt locating hole, can save the hinge of bolt hole or the fine finishining of boring.This has not only reduced the machining accuracy and the processing cost of bolt hole, and the positioning accuracy of connecting rod bearing capacity, shear resistance, bar and lid and assembly quality are significantly improved.
Since this new technology produces, U.S. Ford, MTS company, many companies such as German ALFLING company have have successively researched and developed the cracking process equipment, and Japan has also correspondingly carried out the research of this respect.Adopt " pneumatic pull-down " method that connecting rod is carried out cracking processing as AM General company, and applied for patent, its patent publication No. is US4768694, patent disclosure date Sep.6,1988; U.S. Ford adopts " horizontal " frock that crank pin end pore is carried out cracking processing, and its patent publication No. is US5105538A, patent disclosure date Apr.21,1992; American MTS company adopts " the cracking piece of hydraulic piston is housed " to carry out cracking processing, and its patent publication No. is US4754906, patent disclosure date Jul.5,1988; Germany ALFLING company adopts the frock of " horizontal force action " to carry out cracking processing, and its patent publication No. is US5169046, patent disclosure date Dec.8,1992; Day present inventor adopt " the eccentrically weighted shaft mode of action " carry out cracking process its patent publication No. for the spy opens flat 11-245122, the patent disclosure date is put down into 11 years (1999) September 14; The main problem 1 that exists in above-mentioned existing production technology or the patented technology) " horizontal force action formula " should not realize the workpiece transmission of automated production.2) " eccentrically weighted shaft formula " and " cracking packaged have hydraulic piston type " practical application difficulty.3) after the connecting rod cracking was processed king-rod and lid is separated, the big end hole distortion was bigger, and bar is bigger with the distortion of lid composition surface, influenced the meshing quality and the assembly precision on bar and lid composition surface.
Technology contents: the objective of the invention is to overcome the technical problem that prior art exists, a kind of engine link machining process and device that improves connecting rod assembly quality and assembly precision is provided.
The technical problem that the present invention mainly will solve is as follows:
1) utilize this cracking process equipment, connecting rod cap and con-rod only after cracking is separated are further accurately located.Mesh fully on the composition surface that guarantees bar and lid, improves connecting rod assembly quality and assembly precision.
2) in the connecting rod cracking process technology, frame for movement, load mode, the rate of cleavage of the meshing quality on the composition surface of bar and lid and cracking frock are closely related.The present invention has explored a kind of new cracking processing equipment structure, thereby further solves the product quality problem in the connecting rod production in enormous quantities.
3) after the connecting rod cracking processing, though bar has been realized engagement with lid.But do not penetrate bolt as yet so after cracking processing, should adopt the automation conveyer, the connecting rod that will be in engagement is sent to the assembling bolt operation from the cracking operation.So require cracking apparatus should be suitable for the needs of automatic conveying work pieces mode.This cracking process equipment adopts a kind of new cracker.Help the automatic transmission of each inter process of connecting rod.
4) engine link have wide in variety, the characteristics that model specification differs, the present invention is by adjusting mechanism and removable vital part, to realize different centre-to-centre spacing, the cracking processing of the connecting rod of different big end hole sizes.
Technical scheme:
Above-mentioned purpose of the present invention is achieved in that accompanying drawings is as follows:
The engine link machining process adopts cranking processing technology, it is characterized in that this technology is: before cracking, adopt hold down gag to compress screwed hole place and the major part and the bar portion transition position of connecting rod cover, crank pin end pore center burst face is in advance compresses state in advance; In the crack propagation process of crank pin end pore center burst face, the lid end applies and has remained back pressure by the back pressure oil cylinder 24 that is communicated with accumulator; After cracking was finished, the connecting rod cap 16 adopt the slide block can accurately adjust the position and guide pad mechanism to cracking at connecting rod cover after accurately resetted with gonnecting rod body 14 and meshes fully.
Engine link cracking processing unit (plant) is by hold-down mechanism, crank pin end pore cracking mechanism, slide block and guide pad mechanism form, it is characterized in that hold-down mechanism is to be made of 4 horizontal compacting cylinders 20 and 4 corresponding perpendicular locking cylinders 27, each horizontal compacting cylinder 20 is by being connected the compact heap 17 of its piston rod 21 ends, 32 compress screwed hole place and the major part and the bar portion transition position of connecting rod cover respectively, 4 perpendicular locking cylinders 27 adopt the piston rod with inclined-plane respectively with the piston rod locking of 4 horizontal compacting cylinders 20, crank pin end pore cracking mechanism constitutes by being contained in expansion set that cleavage stable sheath 11 in the crank pin end pore and cleavage moveable sheath 12 form and the pull-down wedge shape pull bar 13 in the expansion set, cleavage stable sheath 11 is fixed on to be decided on the piece 5, cleavage moveable sheath 12 is contained on the movable sliding block 29 that is driven by back pressure oil cylinder 24, wedge shape pull bar 13 is contained on the piston rod of cracking oil cylinder 24 of frame 4 bottoms, slide block 29 in slide block and the guide pad mechanism is installed on the take-up housing 28, and by 4 SLIDE GUIDEs, 33 guiding, the slide block rear end is connected with the piston rod of back pressure oil cylinder 24 by contiguous block 30, and small end of connecting rod is by adjustable microcephaly hole locating shaft 10 location, position.
Advantage of the present invention and technique effect are: by every technical measures that technique scheme adopted.The present invention compares with the traditional handicraft of the connecting rod split processing that at home and abroad continues at present extensively to adopt, and can reduce machining processes 60%, can save equipment investment 25%, reduces cutter expense 35%, saves 40%.Compare with existing cracking process equipment, because the present invention adopts " back pressure type " cracking mode and adopt " fluid pressure type " wedge shape pull bar to carry out cracking, the hydraulic pressure master cylinder oil supply system that cracking simultaneously loads usefulness has big flow, the fast and variable feature of speed, and cracking process was finished in moment.Theory by dynamic fracture mechanics, the expansion of the high speed of crackle forms moment and ruptures fast, will be very favorable to the engagement again of the plane of disruption, so the present invention is compared with prior art, can further improve the meshing quality of connecting rod cracking face, further improve the assembly precision and the product quality of connecting rod.In addition,, can realize the automation transmission of connecting rod more easily, be more prone to realize the automated production process, and can simplify the design and the manufacturing of automation transfer device at each inter process owing to adopt " pull-down " cracking mode.The present invention is fit to the cracking processing of many kinds, plurality of specifications model connecting rod.The technical measures of the adjustable and replaceable vital part of being taked.Brought convenience and useful effect also for the production of the many kinds of connecting rod.
Description of drawings:
Fig. 1 is the front view of connecting rod cracking processing unit (plant).
Fig. 2 is the vertical view of connecting rod cracking processing unit (plant).
Fig. 3 be among Fig. 2 the rod end locking cylinder along the cutaway view at A-A direction place.
Fig. 4 is connecting rod cracking processing back bar and lid separation graph.
Fig. 5 is the cutaway view of Fig. 1 at B-B direction place.
Among the figure: 1. lysate cylinder pressure 2. rectangle contiguous blocks 3. connection brackets 4. frames 5. are decided piece 6. fixed covers 7. fairleads 8. leading screws, nut body 9. is adjusted block 10. microcephaly's locating pieces 11. cleavage stable sheaths 12. moving cover 13. wedge shape pull bars 14. con-rod onlys 15. 16. connecting rod caps 17. levelling blocks 18. alignment pins 19. Anti-rotary blocks 20. horizontal compacting cylinders 21. cross cylinder piston rods 22. cushion blocks 23. positioning screws 24. back pressure oil cylinders 25. lid end casings 26. piston rods 27. locking cylinders 28. take-up housings 29. slide blocks 30. contiguous blocks 31. connecting plates 32. levelling blocks 33. guide pads 34. adjustment blocks 35. adjusting pads 36. guide plates 37. lid end casings 38. guide pads and adjusted plate
The specific embodiment:
Below in conjunction with the accompanying drawing illustrated embodiment, further specify particular content of the present invention and embodiment and the course of work thereof.
1) in connecting rod cracking processing, takes the cleavage method of " back pressure type ", promptly before cracking, adopted four horizontal compacting cylinders 20 to compress screwed hole place and the major part and the bar portion transition position of connecting rod cover.Take of piston rod 21 lockings of four perpendicular locking cylinders 27 simultaneously, crank pin end pore center burst face is in advance compresses state in advance four horizontal compacting cylinders.
When bloated fault block under the snap action of " pull-down " wedge shape pull bar 13, can realize that the moment at connecting rod cracking position ruptures fast.Because the lid end will produce with body and separate during connecting rod cracking, in the crack propagation process of the plane of disruption, the lid end will have a certain amount of displacement, required back pressure when keeping cracking, the present invention has adopted back pressure oil cylinder 24, promptly at back pressure oil cylinder 24 places the hydraulic pressure accumulator is set separately, back pressure oil cylinder back cavity communicates with this hydraulic pressure accumulator.When the lid end produced displacement, the hydraulic oil of back pressure oil cylinder 24 entered in the accumulator, can guarantee to have all the time at cracking process middle cover end the effect of back pressure.Under " back pressure " fracture mode, can obtain the good plane of disruption of engagement property, with reducing the phenomenon of tearing of fracture, reduce the quantity of falling slag, thereby reach the purpose that improves connecting rod cracking quality.
2) for connecting rod cracking back link lid 16 and gonnecting rod body 14 are accurately resetted, connecting rod cover has adopted slide block and guide pad mechanism.The guide pad 33 of four tin bronzes of inserting, can adjust front and back position, can adjust the position easily to slide body 29, accurate guarantee slide body 29 and to decide piece 5 centers consistent, left and right sides position consistency, thereby the connecting rod cap 16 after the cracking is accurately resetted with gonnecting rod body 14, guarantee the engagement fully of bar and lid.
Slide block 29 is installed on the take-up housing, and by four SLIDE GUIDE guiding, the slide block rear end is connected by the piston rod of connector with the slide block oil cylinder.The back pressure oil cylinder is provided with reversal valve, and slide block location adjusting screw(rod) is set on back pressure oil cylinder 24 connecting plates.When cracking wedge shape pull bar moves downward end, after the action of slide block oil cylinder reversal valve, the oil-feed of slide block oil cylinder ante-chamber behind the segment distance that moves backward, is stopped slide block by positioning screw 23.
3) for connecting rod cracking process easily is automated, be adapted to the requirement that workpiece is transmitted in automation, the present invention adopts pull-down cracking mode and mechanism, is about to cracking frock (wedge shape pull bar 13, lysate cylinder pressure 1) etc. and all places bottom the frame central.Thereby the top at cracking connecting-rod provides enough spaces for the automation transfer device.
4) for preventing that cracking hydraulic cylinder piston rod and wedge shape pull bar 13 from rotating, adopt nut to be equipped with tightly at piston rod and 2 of rectangle contiguous blocks, and open a rectangular window on the top panel that connects support 3, its left and right sides face and rectangle contiguous block 2 keep the tolerance fit relation.And wedge shape pull bar 13 moves downward in the process, with fairlead 7 guiding of fixed cover 6 and tin bronze material.
5) for adapting to the requirement of the many kinds of engine link, polytypic specification, the present invention has taked little cracking wedge shape pull bar 13, cleavage stable sheath 11, cleavage moveable sheath 12, compact heap 17 and 32, a hole locating shaft 10 removable mode and structures.For adapting to the variation of centre-to-centre spacing, microcephaly hole locating shaft 10 is loaded on to be adjusted on the block 9, adjusts block 9 and adopts the rectangular guideway mode to be loaded on deciding on the piece 5 of rod end, adjusts on the block 9 screw-nut body 8 is housed, to adjust its front and back position simultaneously.
6) prove through practical application that the connecting rod rate of cleavage has very big influence to connecting rod cracking face meshing characteristic, product quality.Connecting rod for different size need adopt different best rate of cleavage.The present invention has adopted the design principle of big flow in lysate cylinder pressure 1 design of Hydraulic System for this reason, and adopt the design of the accumulator of electro-hydraulic proportional valve and big specification in the scope of broad, to guarantee the purpose of the quick cracking of moment fracture realization of connecting rod bar and lid.
The front and back position of guide pad 33 can all be equipped with guide rail by being installed on the adjustment plate 38 on take-up housing 28 two sides and adjusting the bolt adjustment on the front end of guide pad 33 and the lower plane, guide rail is connected with guide pad 33 with bolt.
Lysate compressing cylinder 1 is installed on the connection support 3 of frame 4 belows, and its piston rod connects by rectangle contiguous block 2 and wedge shape pull bar 13 and to adopt nut to be equipped with tight, rectangle contiguous block 2 be connected the cradle top surface plate on rectangular window two sides maintenance tolerance fit.
Wedge shape pull bar 13 usefulness fixed covers 6 and fairlead 7 guiding, fixed cover 6 adopts to be bolted to be decided on piece 5 and the take-up housing 28, and fairlead 7 is counter mounted in the fixed cover 6.
The mechanical part of device is mainly compressed, decides mechanisms such as piece, movable slider, connecting rod cracking and constituted by frame, connecting rod location, centre-to-centre spacing adjustment, connecting rod.
As shown in Figure 1 and Figure 2: when connecting rod automation transmission device (not drawing among the figure) put into microcephaly's locating piece 10 automatically and by cleavage stable sheath 11, the moving cover 12 crank pin end pore expansion sets of forming after, four levelling blocks 17,32 are at first pressed to the plane at lid end screwed hole place of connecting rod and the arc transition place of major part and bar portion under the effect of four cross cylinders 20.After four cross cylinders, 20 driving briquettings 17,32 compressed connecting rod, four locking cylinders 27 moved at once, see Fig. 1, shown in Figure 3.Make piston rod 26 risings and compress four cross cylinder piston rods 21, and constitute the rigidity supporting roles with cushion block 22, casing 25 with certain taper.At this moment, be loaded with two horizontal compacting cylinders of lid end and two locking cylinders movable slider 29 oneself by 24 drivings of back pressure oil cylinder, be pressed on the deciding on the piece 5 of connecting rod rod end.After 27 actions of four locking cylinders, 1 action of lysate cylinder pressure drives wedge shape pull bar 13 and moves downward.This wedge shape pull bar 13 becomes downward active force into horizontal applied force, thereby promotes cleavage moveable sheath 12.Under moving cover 12 horizontal applied forces, crackle will be expanded by pre-processed V-shaped groove or initial collapse groove fast along the crank pin end pore center, thereby connecting rod cap is separated from con-rod only.In the process that wedge shape pull bar 13 moves downward, slide block 29 also will move backward, slide block 29 moves the piston compression back cavity hydraulic oil that will make back pressure oil cylinder 24 backward, and the reversal valve of back pressure oil cylinder 24 does not commutate at this moment, makes the hydraulic oil of a small amount of elevated pressures flow to accumulator.Can guarantee that like this connecting rod cap also is under the back pressure state in cracking process, thereby can obtain the plane of disruption preferably.
After lysate cylinder pressure 1 downward stroke puts in place, the commutation of the reversal valve of back pressure oil cylinder 24, slide block 29 moves a bit of distance more backward.This moment, con-rod only 14 separated fully with connecting rod cap 16, as shown in Figure 4.Lysate cylinder pressure 1 drive wedge shape pull bar 13 move downward reset after, slide block 29 travels forward under back pressure oil cylinder 24 drives, and makes cleavage moveable sheath 12 and overlaps 11 surely and close up.Also promptly, make connecting rod cap 16 and con-rod only 14 engagements after the separation.
Referring to Fig. 1, shown in Figure 2 after connecting rod cap 16 and gonnecting rod body 14 mesh, the piston rod 26 of four locking cylinders of this cracker is return earlier, four cross cylinder piston rods 21 are return then, cause four levelling block 17,32 and connecting rods that are connected on the piston rod 26 to break away from.
After above-mentioned action is finished, can bar and the connecting rod part that lid has meshed be reached next process by the automation transfer device.So far, crank pin end pore cracking operation finishes, and under this state, this cracking processing unit (plant) is waited for the automation transfer device, and another connecting rod is reached this station by the last splitter operation of processing together.
Claims (9)
1. the engine link machining process adopts cranking processing technology, it is characterized in that this technology is: before cracking, adopt hold down gag to compress screwed hole place and the major part and the bar portion transition position of connecting rod cover, crank pin end pore center burst face is in advance compresses state in advance; In the crack propagation process of crank pin end pore center burst face, the lid end applies and has remained back pressure by the back pressure oil cylinder (24) that is communicated with accumulator; After cracking was finished, the connecting rod cap (16) adopt the slide block can accurately adjust the position and guide pad mechanism to cracking at connecting rod cover after accurately resetted with gonnecting rod body (14) and meshes fully.
2. being used for the described engine link cracking of claim 1 processing unit (plant) is by hold-down mechanism, crank pin end pore cracking mechanism, slide block and guide pad mechanism form, it is characterized in that hold-down mechanism is to be made of 4 horizontal compacting cylinders (20) and corresponding 4 perpendicular locking cylinders (27), each horizontal compacting cylinder (20) is by being connected the compact heap (17) of its piston rod (21) end, (32) compressing the screwed hole place of connecting rod cover and major part and bar portion respectively excessively locates, 4 perpendicular locking cylinders (27) adopt the piston rod with inclined-plane respectively the piston rod of 4 horizontal compacting cylinders (20) to be locked, crank pin end pore cracking mechanism constitutes by being contained in expansion set and the pull-down wedge shape pull bar (13) in the expansion set that cleavage stable sheath (11) in the crank pin end pore and cleavage moveable sheath (12) form, cleavage stable sheath (11) is fixed on to be decided on the piece (5), cleavage moveable sheath (12) is contained on the movable sliding block (29) that is driven by back pressure oil cylinder (24), wedge shape pull bar (13) is contained on the piston rod of cracking oil cylinder (24) of frame (4) bottom, slide block (29) in slide block and the guide pad mechanism is installed on the take-up housing (28), and lead by 4 SLIDE GUIDEs (33), the slide block rear end is connected by the piston rod of connector with back pressure oil cylinder (24), and small end of connecting rod is by adjustable microcephaly hole locating shaft (10) location, position.
3. engine link cracking processing unit (plant) according to claim 2 is characterized in that said wedge shape pull bar (13), cleavage stable sheath (11), cleavage moveable sheath (12), compact heap (17) and (32), microcephaly hole locating shaft 910) can change.
4. according to claim 2 or 3 described engine link cracking processing unit (plant)s, it is characterized in that microcephaly hole locating shaft (10) is installed on the adjustment block (9), adjust block (9) and adopt the rectangular guideway mode to be loaded on deciding on the piece (5) of rod end, adjust on the block (9) screw-nut body (8) is housed.
5. engine link cracking processing unit (plant) according to claim 2 is characterized in that said back pressure oil cylinder (24) locates to be provided with separately the hydraulic pressure accumulator, and back pressure oil cylinder back cavity communicates with this hydraulic pressure accumulator.
6. engine link cracking processing unit (plant) according to claim 2 is characterized in that said back pressure oil cylinder is provided with reversal valve, and slide block location adjusting screw(rod) is set on back pressure oil cylinder (24) connecting plate.
7. engine link cracking processing unit (plant) according to claim 2, the front and back position that it is characterized in that guide pad (33) can be by being installed on the adjustment plate (38) on take-up housing (28) two sides and adjusting the bolt adjustment, on the front end of guide pad (33) and the lower plane guide rail is housed all, guide rail is connected with guide pad (33) with bolt.
8. engine link cracking processing unit (plant) according to claim 2, it is characterized in that said lysate compressing cylinder 1 is installed on the connection support (3) of frame (4) below, its piston rod connects by rectangle contiguous block (2) and wedge shape pull bar (13) and to adopt nut to be equipped with tight, rectangle contiguous block (2) be connected the cradle top surface plate on rectangular window two sides maintenance tolerance fit.
9. engine link cracking processing unit (plant) according to claim 2, it is characterized in that wedge shape pull bar (13) leads with fixed cover (6) and fairlead (7), fixed cover (6) adopts to be bolted to be decided on piece (5) and the take-up housing (28), and fairlead (7) is counter mounted in the fixed cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109756 CN1218816C (en) | 2002-05-20 | 2002-05-20 | Technology and apparatus for machining linking-rod of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02109756 CN1218816C (en) | 2002-05-20 | 2002-05-20 | Technology and apparatus for machining linking-rod of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1397392A true CN1397392A (en) | 2003-02-19 |
| CN1218816C CN1218816C (en) | 2005-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02109756 Expired - Fee Related CN1218816C (en) | 2002-05-20 | 2002-05-20 | Technology and apparatus for machining linking-rod of engine |
Country Status (1)
| Country | Link |
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| CN (1) | CN1218816C (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326659C (en) * | 2004-04-26 | 2007-07-18 | 吉林大学 | Processing apparatus for initial cracking tank for engine connecting rod |
| CN101811251A (en) * | 2010-05-06 | 2010-08-25 | 长春吉扬华欣科技有限责任公司 | Automatic assembly equipment for fixed torque bolt of splitting connecting rod |
| CN102039444A (en) * | 2010-11-04 | 2011-05-04 | 奇瑞汽车股份有限公司 | Connecting rod cracking device and using method thereof |
| CN104019078A (en) * | 2014-06-10 | 2014-09-03 | 中国重型机械研究院股份公司 | Method for pressing oil cylinder with short stroke and long piston rod |
| CN104624854A (en) * | 2014-12-29 | 2015-05-20 | 中国兵器科学研究院宁波分院 | Embrittling splitting and clamping device used for connecting rod cap and connecting rod body with high strength and toughness steel |
| CN106826149A (en) * | 2017-01-10 | 2017-06-13 | 西安交通大学 | Radial cams loading and the low-cycle fatigue cracking apparatus of Split link cracking |
| CN106826148A (en) * | 2017-01-10 | 2017-06-13 | 西安交通大学 | The loading of five-pointed star plunger and the low-cycle fatigue cracking apparatus of Split link cracking |
| CN106944737A (en) * | 2017-03-28 | 2017-07-14 | 江苏大学 | Connecting rod ultrasonic wave added cracks processing method and its processing unit (plant) |
| CN107282760A (en) * | 2017-07-07 | 2017-10-24 | 南宫市精强连杆有限公司 | Connecting rod is swollen off line |
| CN111644960A (en) * | 2020-06-15 | 2020-09-11 | 含山县大力精密机械有限公司 | Die-sinking grinding device and method for automobile connecting rod casting part |
| CN113260491A (en) * | 2019-03-29 | 2021-08-13 | 株式会社安永 | Metal member breaking device, connecting rod breaking device, metal member breaking method, connecting rod breaking method, metal member manufacturing method, and connecting rod manufacturing method |
-
2002
- 2002-05-20 CN CN 02109756 patent/CN1218816C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326659C (en) * | 2004-04-26 | 2007-07-18 | 吉林大学 | Processing apparatus for initial cracking tank for engine connecting rod |
| CN101811251A (en) * | 2010-05-06 | 2010-08-25 | 长春吉扬华欣科技有限责任公司 | Automatic assembly equipment for fixed torque bolt of splitting connecting rod |
| CN102039444A (en) * | 2010-11-04 | 2011-05-04 | 奇瑞汽车股份有限公司 | Connecting rod cracking device and using method thereof |
| CN104019078A (en) * | 2014-06-10 | 2014-09-03 | 中国重型机械研究院股份公司 | Method for pressing oil cylinder with short stroke and long piston rod |
| CN104624854A (en) * | 2014-12-29 | 2015-05-20 | 中国兵器科学研究院宁波分院 | Embrittling splitting and clamping device used for connecting rod cap and connecting rod body with high strength and toughness steel |
| CN106826148A (en) * | 2017-01-10 | 2017-06-13 | 西安交通大学 | The loading of five-pointed star plunger and the low-cycle fatigue cracking apparatus of Split link cracking |
| CN106826149A (en) * | 2017-01-10 | 2017-06-13 | 西安交通大学 | Radial cams loading and the low-cycle fatigue cracking apparatus of Split link cracking |
| CN106826149B (en) * | 2017-01-10 | 2019-01-08 | 西安交通大学 | Radial cams load and the low-cycle fatigue cracking apparatus of Split link cracking |
| CN106826148B (en) * | 2017-01-10 | 2019-01-08 | 西安交通大学 | The load of five-pointed star plunger and the low-cycle fatigue cracking apparatus of Split link cracking |
| CN106944737A (en) * | 2017-03-28 | 2017-07-14 | 江苏大学 | Connecting rod ultrasonic wave added cracks processing method and its processing unit (plant) |
| CN107282760A (en) * | 2017-07-07 | 2017-10-24 | 南宫市精强连杆有限公司 | Connecting rod is swollen off line |
| CN107282760B (en) * | 2017-07-07 | 2018-11-30 | 南宫市精强连杆有限公司 | Connecting rod is swollen off line |
| CN113260491A (en) * | 2019-03-29 | 2021-08-13 | 株式会社安永 | Metal member breaking device, connecting rod breaking device, metal member breaking method, connecting rod breaking method, metal member manufacturing method, and connecting rod manufacturing method |
| CN111644960A (en) * | 2020-06-15 | 2020-09-11 | 含山县大力精密机械有限公司 | Die-sinking grinding device and method for automobile connecting rod casting part |
| CN111644960B (en) * | 2020-06-15 | 2021-05-07 | 含山县大力精密机械有限公司 | Die-sinking grinding device and method for automobile connecting rod casting part |
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| Publication number | Publication date |
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| CN1218816C (en) | 2005-09-14 |
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