Punch technology: In domestic car the applied current situation in making reachs his to be opposite the requirement of machine tool tool

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  • source:DALLMAN CNC Machining
Make one of the vitallest technology as the car, punch technology obtained great progress in domestic development. In the meantime, it is the effect with be achieved better, punch technology waited to also raise taller requirement to equipment, article author made compendious analysis to this from the angle of the user. The punch of development existing state of affairs of technology of domestic car punch is one of 4 old technology that the car makes, the production precision of automobile body greatly the precision that be decided by reachs its assembly at punch. Punch technology source develops at what large quantities of quantities produce and need, especially the development of auto industry, now still such. The expression of development existing state of affairs of technology of punch of our country car is in the following respects. 1.

An automation is enclothed to produce rate outside taller outside enclothe tall to exterior quality requirement, can rely on automation production only. Enclothe outside our country car although automation production does not calculate going up is high speed punch, but automation rate is quite high also. This basically is expressed use automation extensively now to become Jin punch facet. Thread punch presses aircrew to close thoroughly into by 4 commonly punch line, it is the robot sends automatically among expect and take, manufacturing metre is 10~15 about second / Min, typical is a stage double the 800T press composition that changes 1630T and after add. 2.

Floor, coping kind inside enclothe use automatic or semi-automatic turn production this kind of spare parts basically is decided by batch its produce kind, use automation commonly or semi-automatic turn production. Outside removing joint-stock company, indigenous industry starts at first basically is to use semi-automatic the producer style that changes punch. Semi-automatic changed punch to raise specific requirement to press. Above all, press mesa wants big; Next, slant as a result of figuration force big, press of need head stage is 2000T or press of add of 2400T, after is 1000T or 1250T above. 3.

Chassis framework many create chassis framework by component enterprise many make by component company intercurrent past leader plant. The component company of etiquette model has 6 punch Jin commonly, considering facilitating quality control and other people of leader factory production shed management, company of this kind of component has solder even the paint of after add or spray craft, can supply assembly part directly to leader plant thereby. 4.

Accurate punch technology develops technology of rapid and accurate punch to accompanying the development traceable Switzerland of horological manufacturing industry, it is one of technologies of key of auto industry developing, make in a few assembly of the car on having important applying, if door hinge assembly, glass rises,fall implement assembly. Thick 3-5mm of makings of this kind of spare parts, precision of requirement spare parts tall, intensity action of good, assembly is smooth and credible. The course develops for years, accurate punch technology gained delectable success in our country auto industry, at present the essence of life with a batch of rich actual strength develops our country emerge in large numbers enterprise. The development application of main punch craft and hydraulic forming technology is current mainstream punch craft of home or mode of production of Jin sex mould, as to craft of special type figuration, be like hydraulic forming, we often are heard introduce similarly and report for duty, but still basically stay in laboratory status at present. The hydraulic forming technology in industry basically applies in the canal model in figuration, abroad basically applies in very the personalized car spare parts of small lot is made in. Be in at present in enclothing a figuration, home still still does not have application. Hydraulic forming has more outstanding advantage: Above all, tell from the principle, this technology is to wait press figuration, depend on high-pressured medium to change board makings form, board makings is in law to be press press, for 3 to condition getting power, can better improvement is local figuration, perhaps say form of advantageous Wu Cheng is more complex enclothe; Next, its figuration principle and liquid medium, the steel that changed a tradition - steel contacts figuration means, can reduce board makings cut effectively, very advantageous to improving exterior quality; The 3rd, improved traditional punch to become the limitation of shape direction to punch; The 4th, can content of figuration more craft, benefit at reducing working procedure and mould amount; The 5th, in figuration cold make sclerotic and advantageous Wu Di make an intensity high. In the meantime, from at present foreign application case looks, its production metre is not slow. But, hydraulic forming technology also has insufficient place. The limitative clearly that its apply: Liquid medium reachs need external use its are corresponding device; And be necessary undertake to the spare parts before solder after add is handled; Consider the impact of pair of spot work environments, suit big batch spare parts to machine not quite. The problem car that domestic car covers a mould to make presence is enclothed have inside and outside not, corresponding ground also has inside and outside to cover the fraction of a mould. Enclothe inside exterior quality basically is spring back and screwy problem, the stability of the mould basically is to prevent to pull injury, improvement to make reliably warp and be out of shape; Enclothe outside the burr that exterior quality basically is nick, aperture and edge, local cave, joint face shapes quality, assembly the problem such as the clearance that assembles after, section of mould requirement job is made excellent, assemble essence of life to allow, mould movement is fluent wait. Should say, home has the capacity that creates a pattern of whole intermediate car automobile body and technology already completely, but the mould is not batch production, no matter an any moulds are made by which mould factory, be being returned finally is by specific the specific personnel that assumes its to design production job is finished. We can be accumulated in integral experience and standardize a respect to do a lot of works, but because be odd a production, still decide by individual level in fact so. Nextpage is current home is truckload of the factory inside enclothe a mould to basically be finished by home make, and kind of the package outside a mould is being enclothed to adopt outside halfway key. The bag is outside base the experience outside Wu Guo is more rich, hair bag just is made in the product there is bigger expectation on cycle and quality. In fact outside the pattern that the bag makes also is put in a lot of problems, but just be told to sending a package, can think from mentally domestic problem is more. Altogether, the car enclothes an over all dimension big, use Jin to produce kind, use Jin pattern; Medium or small stamping workpiece abroad uses multitask more generally class takes a pattern, efficiency is very tall. As the ceaseless development of domestic auto industry, industry also is in car mould of China to progress ceaselessly, the competitive advantage of factory of foreign car mould also will be weakened with each passing day, everybody is met finally more and more self-identity home mould. Design of car punch mould expects to improve CAD/CAE system compositive technology talks about car punch technology, with respect to the design that cannot ignore car punch mould. At present the current CAD/CAE system on the market than 10 have very big change before New Year, before is the system that compares generalization, make in the light of the mould at present the development that made a lot of adaptability actually or change, this is tremendous progress undoubtedly. The function of system of a few CAD/CAE that compares a pattern in the market now is very powerful, but in applying actually, as a result of environmental change, always achieve anticipated result hard, perhaps say existence a few is like the place of person meaning very much. From in the long run, from fall the angle of cost and service looks, it is better to be like homebred CAD/CAM system. From long-term look, of CAD/CAE compositive will make a kind of demand or trend, there also are such a lot of attempts now in fact, but from application the effect looks still is not very ideal. CAD/CAE system developer is necessary to be made to enclothing the design train of thought of a mould a few especially other and meticulous comb, analysis and special a note of the ancient Chinese five-tone scale changes processing, like that after finds an union place from the angle of software system again. What do in this respect is more outstanding is Thinkdesign system, this system can realize the engineer's intention well on spring back processing. Between software system compositive always advancing ahead ceaselessly, the network processing on physics has done not have what problem, the CAD/CAM that factory of a few moulds has realized PDM environment to fall now is compositive. But the angle that concerns from the both of systematic development and application of mould mill industry looks, the experience with be done not have relatively mature without industrial application can be offerred draw lessons from, mould factory wants application to need investment, and investment needs income. In the meantime, the talent's education also is one nots allow evasive problem. The demand that car punch mould makes pair of machine tools and cutting tool 1.

To the requirement car punch of machine tool equipment the mould creates the demand to equipment, main body is mixed in stability now dependability respect. The author goes to company of a pattern recently, this company staff is in speak of its a few equipment and the use that just assembled a good machining center express when the circumstance, the precision of equipment keeps very important. In the meantime, this personnel points out, present equipment more and more the skill that depends on equipment to install staff and professional accomplishment, equipment installation personnel must have installed equipment, debug groove, the use that emphasizes equipment surely in the important or urgent business when undertaking grooming to operating personnel and the point that maintain reach the result that its bring. Pattern production company is huge to the flower endowment bought equipment holds very big hope, this just tries hard each with respect to need in order to achieve the goal that its book, realize win-win and harmony. Be like equipment manufacturer can user of fixed pay a return visit and come to serve, undertake service of a few overhaul is mixed even transform etc, better. 2.

The demand to cutting tool demand to cutting tool, the author once had spoken of, basically have the following: ① quality. Quality is premise, and do not have end to the requirement of quality. Total service life and blade grind life is its measure index. ② price. The domain that competing adequately the more, the action of the price appears bigger. Sexual price is compared is its measure index. Ability of ③ research and development. Taste newly roll out ability to include two fields at least: It is the reaction ability of pair of client demand, the user fears tool supplier ignore its demand, the product supplier that does not need like client of short duration is recommended energetically however, the product that the client needs does not grant to offer a solution tardy again however, this is bewildering. But this respect had now bigger change, we see the has specific aim solution of a few maturity; 2 it is the design engineering capability that tastes newly, this is the test that makes actual strength to supplier technology. Of course, all requirements that are not a client are reasonable may go, but supplier (the supplier that includes ourselves to serve as others) level of consistent sufficient existing technology is the demand of client of accountability really anatomize the client offers professional solution. So whether base oneself upon has technical level to offer major for the client or it is very important that the technical solution that has specific aim becomes a of ability of test supplier research and development and very practical aspect. ④ date of delivery. Current, reduce inventory to already made the task that place of industry of all and sufficient competition must face, so shorter date of delivery appears particularly important. Client of press close to builds reasonable reserve to make a real solution, can jump over nearly more fast. Tool supplier is not exceptional also. Typical company: East wind model develops pure mould industry is a technology concentrated, capital labor is concentrated, concentrated model industry, investment is large, pay back period is long, do quickly very hard so big, simple punch professional work is done relatively easily big but devoid core technology is propped up. Limited company of technology of punch of east wind mould supports mould business to develop quickly through doing big punch business, realize the hurried of interactive, each other of mould, punch. Strong company of east wind pattern is former below banner of integrated east wind the mould of 3 companies and strong solder make resource hold water, scope of business already expanded from the single product in the past for current pattern, punch, solder unifinication product, can provide different product and more wide service for different user. Company assets total exceeds 1 billion, nearly 2000 employee, achieved sales revenue 2008 7.

400 million yuan. Current, "Digitlization is made " in enclothing company pattern to design production whole process chain, the application of PDM technology realized whole technological process manage in coordination. Overall for, east wind model rushs to already was had annual development, design, make 1.

5 truckload automobile body mould and the comprehensive strength that punch is produced and assembly solders, it is a when serve Chinese auto industry fundamental strength. CNC Milling CNC Machining