2022年汽车变速箱弹簧片冷冲压工艺机械制造工艺及冷冲压磨具设计方案外文翻译 .pdf

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1、1 / 11 Automobile manufacture stamping process of new development Automobile manufacture has a 60-70% of metal parts must be approved by the plastic processing forming, stamping process is complete metal plastic forming a kind of important means, it is the most basic, the most traditional, the most

2、important one of metal processing method. Such as vehicle body all kinds of covering parts, car support pieces, structure strengthen pieces, theres plenty of auto parts, such as engine exhaust muffler, hollow tube bending and camshaft, the oil pan, engine stents, frame structure, horizontal longeron

3、 etc, it is by stamping technology positively precision, multi-function, high efficiency and energy saving, safe cleaning production direction, stamping workpiece manufacturing technology level and quality, in great degree of automobile manufacturing quality and cost has direct impact. So-called sta

4、mping technology refers to the adaptability of the stamping to handicraft, namely the design of stamping in size, size accuracy and benchmarks, structure shape stamping processing of compliance with technological requirements. Automotive stamping parts should be good technological characteristics, a

5、nd the economy, measure the level of the important symbol has stamping process number, body assemblies block number and size, stamping structure, and other factors. Reduce the number of punching process procedure, that means less stamping tooling quantity, number of packages, save simplified punchin

6、g process of conveyors, Narrows the operators and stamping area, is to save investment and energy consumption extremely good measures, so stamping manufacturers can put punching process reduce vehicle number design as the important way to manufacture cost, even ? Modern stamping development and rese

7、arch of the major subjects include: (1 module type and control 。 stamping (2 new material and composite stamping processing new craft。(3 special stamping technology 。(4 computer simulation stamping mold testing technology 。 and virtual (5 die & mould manufacturing technology, (6 stamping process of

8、automatic monitoring and instability mechanism analysis and so on . Module type stamping Module type of prominent advantages in stamping the stamping processing system of the flexible and efficient production of organic unifies in together. Flexible meaning a broader, such as stamping the geometry o

9、f the various demands, so long as can be obtained through the freedom to programming, which reflects the processing shape of flexible. And as both to be suitable mass single variety stamping production, more for small batch multi-species processing play advantage, and also show flexibility. Oerall,

10、module type stamping water-holding point is: (1 the stamping process can be replaced rapidly combination to improve production efficiency。 mould (2 due to its strip for belt and masking belt device, can save another set feeding blanking process, (3 achieved great work pieces the non-stop machining,

11、精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 1 页，共 11 页2 / 11 (4 can both independent and can become series of control combination dies action can continually stamping processing 。(5 dies with programmable and the flexible characteristics. A module type stamping processing system by a with control

12、 function module type of cold stamping press, coil strip send into outfit porch, strip correction machines and programmable feeding device, etc. The stamping system at run-time can undertake stamping transverse displacement, strip feeding positioning, die repeat operation and automatic adjustment wo

13、rk step punching adjustment etc multiple functions. Because the stamping process programmable stamping, make this kind of module type stamping system can adapt production requirements, flexible in same strip on March different workpiece and batch production, realizing mixed non-stop string &joint pr

14、ocessing, also in two sides stamping workpiece machining, which has greatly enhanced the work efficiency, have data show that the module type stamping makes processing cost can fall to 40% - 50%. The current module type stamping device integration is very high, in width is 300MM size range can arran

15、ge of 35 mold, through the roof top of stamping die for independent type series of control, is formed namely die of integrated control. The whole system programmable in WINDOWS user interface and menu under implementation, programming involves mould along the lateral positioning shaft servo drive po

16、sitioning, strip inspection correction and longitudinal feeding positioning, stamping quality follow-up inspection, punching machine。the adjustment and Condition monitoring and versatility. When stamping reconfigure or alteration, these changes would be parameters and controlled system to store, nex

17、t time query and invoke. Declarations Die data include the punch and their combination tags, punch combination in X, Y of die and mould shaft Numbers coordinates and other information. Figure 3 shows programmable punching system, figure in A standard mould transverse axis, can undertake servo dynami

18、c to stamping area, B for the supporting shaft with punching die, C, D for spare axis to orange roll type with material are feeding. And submillimeter stamping project And submillimeter stamping refers to the automotive stamping accuracy control at 0 to 1.0 MM within the scope of the traffic in the

19、past, and manufacturing error of 2MM compared, is a very big enhancement. This is an improving punching quality and manufacturing technology as the goal of integrated project. The project with 2MM engineering are all in the late 1990s America QiCheJie conduct large-scale research project. So-called

20、the car is 2MM engineering knowledge, body assembly size changes within 2MM quantity control, greatly in strict in the original 8MM error range. Stamping processing forming technology affect auto body manufacturing level is one of the key factors, the American experts worked in a car assembly line t

21、o over 50 cases field analysis shows that, cause body size error change many reasons, stamping itself size caused by error accumulation 23 percent, its main reason is that the traditional based on experience and original technology based on low level of mold design and manufacturing. 精选学习资料 - - - -

22、- - - - - 名师归纳总结 - - - - - - -第 2 页，共 11 页3 / 11 And submillimeter stamping is the center of precision stamping with increasing agility two goals, precision is to make the stamping size accuracy control in 0 mm or and submillimeter level, the key is to control body stents, pillar on the pieces of th

23、e feet, and make changes in body covering parts, such as partitioned degrees by whole left-right side plate and the top cover plate, etc. Increasing agility meaning is refers to reduce stamping prajapati was preparation time up to 30%, including tooling design, manufacturing and tooling, sample prep

24、aration time, in order to achieve greatly shorten the purpose of the new models manufacturing cycle, this project diet are die-cutting and assembly integration design, stamping system agile design and manufacturing, stamping process of intelligent detecting and monitoring, whole system integration f

25、our subsystems project. Through a study of the program and submillimeter stamping, stamping technology has witnessed progress, including: (1 the stamping process and component assembly process design by based on experience and the traditional craft to science and data process of transformation, (2 s

26、tamping design to CAD and simulation test mode transformation, rejected traditional attempt method, (3 to implement the mould design manufacture serial manner by the past to parallel transformation, (4 realized process monitoring and equipment maintenance from passive response to scientific predicti

27、on type transformation. 2MM project and and submillimeter stamping two project has successively is complete, and the three major automobile manufacturing company popularization and application, and achieved many beneficial results, stamping cost greatly decreased, obtain the growing economic benefit

28、 of social benefit, and gradually applied to other countries. Special stamping technology Modern automotive stamping technology requirements towards structure is complex, block size increases, related edge parts more, carrying capacity is large and internal limit strictly etc direction. This require

29、ment and promote special stamping technology such as hydraulic pressure forming, precision forming, explosive forming and spinning forming, no die forming, laser forming and electromagnetic forming technology development. Limited to this paper length, here basically introduces pressure inside the fo

30、rming and electromagnetic forming two technologies. Modern automotive stamping technology requirements towards structure is complex, block size increases, related edge parts more, carrying capacity is large and internal limit strictly etc direction. This requirement and promote special stamping tech

31、nology such as hydraulic pressure forming, precision forming, explosive forming and spinning forming, no die forming, laser forming and electromagnetic forming technology development. Limited to this paper length, here basically introduces pressure inside the forming and electromagnetic forming two

32、technologies. The hydraulic or injection of the forming technology of elastic postures, its high-pressure forming process generally includes: (1 effective media such as ice expansion iscm make the internal pressure pressed into the penalty extremely slow growth process, 精选学习资料 - - - - - - - - - 名师归纳

33、总结 - - - - - - -第 3 页，共 11 页4 / 11 (2 fluid static penalty bone high-pressure forming process, (3 extreme pressure as an explosion dynamic process, etc. Medium can is amorphous solid, liquid, or gas, in the system of medium can be basis must processing shape make arbitrary changes, fulfill the punch

34、 function, so medium can be equated to a universal mold. Figure 4 is plank super shobach the example, forming from the graph visible at effective media becomes the punch. The hydraulic internal high-pressure forming technology compared with other stamping technology, there are several obvious advant

35、ages: (1 the forming process can one processing out like axle, top cover, doorcase and other large and complex 3d geometric shapes of workpiece, (2 because of liquid in the forming process cooling effect, make the workpiece is a cold strengthening, won than ordinary stamping workpiece machining high

36、er strength, this makes allowing a thinner plank, to make the work more lightweighting。(3 workpiece surface appearance only with pressure liquid contact, pressure is gentle, parts forming process changes, can obtain the symmetry of uniform pressure distribution, and can winner much better smooth out

37、side surface, (4 in stamping and bloom some hydraulic tool charge can reduce 40%, special reduced convex parts processing of takt time is shorter, about 0.1-0.5 MIN, this in special forming process is shorter, may realize the batch production. Using the electromagnetic force generated electricity co

38、il electromagnetic forming process, is the present quite promising another new processing method. This process from 1960s nuclear fission research achievement, but unfortunately has not been people attention. Electromagnetic forming technology principle diagram, when the coil access to electricity.

39、Few microseconds inside establish electromagnetic field, so the metal workpieces especially conductivity strong copper aluminum texture produce electric current, a current, induced current induced by magnetic force and effect, make the workpiece create tension and dies.the anastomosis and rapid form

40、ing. When the coil in the workpiece in electromagnetic force will make workpiece outside of the current application, zhang forming widespread a kind of technology, When the coil planar parallel to the board piece is placed, electromagnetic force will make workpiece stretch forming. Electromagnetic f

41、orming technology is a non-contact forming process, and its outstanding merits are shaping a rapid high efficiency, 2 it is often used in metal or nonmetal connection, can replace adhesive or welding, A third is not consumption lymphocy help materials such as lubricating grease, etc, the advantageou

42、s environment protection. Stamping process automatic monitoring Modern scramjet another important feature is for punching process automatic monitoring to protect the stamping quality. In the mm stamping project automatic detection and monitoring, its research results will include: 1. The stamping pr

43、ocess characteristics of online preach diagnosis and detection system, 2. High speed and non-contact measuring system。the stamping 3. Die maintenance scientific prediction system。 4. Stamping key parameters online adjust and compensation 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 4 页，共 11 页5 / 1

44、1 system, etc. Stamping process changes caused by workpiece quality is mainly caused by the wear of convex punching die, crack, dislocation, these small changes can be made of high resolution of a transfer sensor and rushed pressure turn sensor tracking detection. One extremely important displacemen

45、t measurement is a kind of measure, this device, usually by installed in the mould, the GuanYuan and located below the receiving unit constitution, can monitor deviation, tracking processing process, timely output monitoring information and alarm downtime. An online stamping graphical processing sys

46、tem, is the effective guarantee stamping workpiece quality testing method, it can carry out 2-d geometric figure of standard testing, the project has the length, diameter, parallelism, Angle, pressing plank structure and identification of waste, etc. Graphics processing system is by like meter, opti

47、cal instrument and lighting equipment etc, the standard of CCD like instrument of bashan 750X580 bar lattice resolution for grid and jokshan horizontal direction for every sheshan lattice 0.026 mm, vertical accuracy of fungi mm/sheshan lattice. Surveillance systems use the displacements and the Angl

48、e sensor are optical type and electrical type two kinds, the former has the laser testing technology and die like light sheshan technical support, The latter has a inductance and capacitance streaming media, they test accuracy resolution all may achieve the 1-10um grade level. The most suitable stam

49、ping technology transfer sensor installation plan is to put multiple turn sensor installed in a centralized sensor board, then put it precisely fixed in the mold outlet, namely the punch clamping board, using sensor data monitoring stamping process, and through the controller get timely treatment, g

50、uarantee the quality of the stamping. 精选学习资料 - - - - - - - - - 名师归纳总结 - - - - - - -第 5 页，共 11 页6 / 11 汽车制造中冲压工艺的新发展汽车制造中有60%-70% 的金属零部件需经塑性加工成形，冲压加工是完成金属塑性成形的一种重要手段，它是最基本、最传统、最重要的金属加工方法之一。如车身上的各种覆盖件、车内支撑件、结构加强件，还有大量的汽车零部件，如发动机的排气弯管及消声器、空心凸轮轴、油底壳、发动机支架、框架结构件、横纵梁等等，都是经冲压成形技术正向精密、多功能、高效节能、安全清洁的生产方向发展，冲