The car enclothes a mould to make produce with stamping workpiece

Car automobile body enclothes a mould to design a car to enclothe a mould is the main pattern that the car produces. Enclothe a punch mould to be with the car now exemple, from the following respect introductions its design production train of thought: Design principle car enclothes a mould design to should follow the following and basic principle: (1) punch direction is decided really must reasonable. The car enclothes a punch direction the design is reasonable, the decision is worn whether pull those who extend satisfaction to cover a product, and immediate impact complements to more or less be mixed partly to craft the appearance that controls makings aspect and mould hardness and service life. (2) those who press makings face figure is affirmatory must effective. Enclothe a drawing figuration pressing makings face figure is the material in assuring drawing process not the first requirement of burst and successful figuration. To achieve this goal, should make press makings face to form certain banking angle to reduce drawing deepness, form at the same time smooth press makings face to come true optimal press makings effect. Still must expect through pressing circle and punch appearance maintain certain geometry relationship, make material is in nervous condition from beginning to end in drawing process smoothly clingy punch, not the material with redundant be patient of produces furrow, and keep optimal press makings effect. Control makings aspect to ensure flowing light is suitable make wollens to the flow inside sunken model antrum, press makings face to must not have local beat bag, indentation and cave in. If control makings aspect,be drawing the flange of itself and have on its raised with cave in when, should increase plastic working procedure. When the included angle that controls makings face and punch direction is more than 90 ° , can increase into material resistance, because this is,cannot take. (3) additional cover decides craft really must sufficient. Since of craft complement face realizes the condition of drawing, it is to increase deformation and the necessary complement that raise part steel to spend. It shapes immediate impact to drawing and the working procedure such as follow-up long edge, plastics, flange. (4) the mould is designed must integral program. The design that enclothes a late strong pattern to the car must be united in wedlock in the future craft, reasonable undertake whole plans, should use class for many times to submit the design plan of the mould, in make sure the premise such as quality of quantity of product deformation spring back, surface falls as far as possible, reduce class to take a time, reduce a mould in order to help a company to make cost, maintain cost, raise manufacturing metre. Punch mould design pays close attention to bit of car to enclothe a mould design to still must notice these a few attention nod: (1) drawing round horn and linear design. Drawing horn having a circle and linear ministry time-sharing, drawing muscle is installed in linear part, make get a balance into makings speed; If be in drawing the part with the easy deepness of linear part installed drawing muscle, so the linear part with difficult deepness need not install drawing muscle. (2) mould inside and outside encircles a design. Shallow drawing round horn and linear part all should install drawing muscle, but round part part can install muscle of a drawing only, and linear part can install 1-3 drawing muscle; If have many drawing anything resembling a tendon or vein when, should be " outside tighten inside the pine " , namely muscle of drawing of mould outer lane " loose " some, and muscle of drawing of mould inner ring " close " some, can achieve this goal through changing drawing muscle height so. (3) drawing muscle outline should submit form of protruding sunken curve. In protruding curve the part should install width drawing muscle. And drawing muscle need not be installed in sunken curve part; Drawing muscle or drawing cage should approach round part of drawing muscle model as far as possible, can increase so overall material utilization factor and reduce mould overall dimension, but the strength that should consider not to affect the model that decorate a border. Production measure car enclothes the production of a mould to basically have the following move: (1) mould concept design. Car automobile body is aggregate of complex free curved surface, enclothing a concept to design use implementation of software of CAD three-dimensional model commonly, to what needing to analyse data to reach its the relation undertakes abstraction is mixed wraparound, build the fundamental model after computer data processing. Notional design also is abstract to the data of objective substance, it reflected the concern between hypostatic specific attribute and substance, go to specific and hypostatic abstraction thereby data model. Accordingly, through the concept the design can decide each cover the relationship between a substance and its attribute. Specific the design that enclothes a drawing mould to the car, entity is drawing mould the boy or girl friend that has conclusive effect in designing a process, never be the same as the data model that the respect builds to entity namely. (2) mould substance is designed. Enclothing a hypostatic design is to use CAE commonly finite of implementation of yuan of analytic emulation software, when must applied CAE technology notice this: Should understand adequately above all be enclothed by treatment norms of material brand, material, material is outspread the material function such as rate and the largest developed area, forecast the blemish such as quality of the produces possibly corrugate, burst when enclothing a hypostatic punch, surface, spring back correctly. Answer next the material property that when mature car enclothes a punch mould substance to design, chooses, wait like brand of material norms, material and data strength, master the requirement such as punch mould and means of punch equipment join and join dimension correctly. Answer to know punch equipment property adequately finally, if punch equipment model, overload protects pressure, clutch pressure, air cushion,the top gives space of travel of pressure, mobile actuating pressure, press to wait. (3) mould accordance test and verify. Mould accordance test and verify is mould of test and verify hardness of installation dimension, mould, fixed position is sold and the dimension of antrum of position of fixed position piece, model regulation that whether accords with design blueprint asks, and whether does mould of the test and verify after assembling accord with what blueprint paper sets to assemble square technology condition to ask, namely the static test and verify that the mould has not install use equipment. (4) mould applicability test and verify. Mould applicability test and verify satisfies accordance test and verify in the mould namely hind, install the mould that has assembled formulary equipment, by the regulation the product comes the dynamic test and verify of productivity of batch of parameter of craft of regulation of test and verify, regulation. Purpose of applicability test and verify is test and verify whether does product of this mould treatment accord with product blueprint requirement and product to assemble function to ask. Accordingly, conclusion of applicability test and verify should get main user admits really. The car is enclothed manufacturing organization is enclothed with the car now in more complex main part roof is exemple, introductory car automobile body is enclothed organization of punch product line. The train of thought that produces design of product line of punch of company of car of constituent train of thought is OK reduce the following: (1) should the manufacturing efficiency that utmost ground develops a car to cover a punch equipment. Configure a purpose to achieve a car to enclothe a punch equipment to optimize, car company must is opposite the performance characteristics that produces equipment, scope of application, use safeguard and the mould changes a pattern quickly complementary have comprehensive consideration. Accordingly, when the enterprise is undertaking the car enclothes a punch product line to design, should have the company punch equipment fixed assets to put measure and add fixed assets increment newly to consider together, ability utmost ground develops the manufacturing efficiency of company fixed assets. (2) should beforehand makes good feasibility survey. Car company is introducing punch line to reach its when relevant plant layout, want to prevent to introduce those antiquated device already, the technique that should consider to introduce again and equipment should be accorded with those who accord with an enterprise is national condition, actual use ability, satisfy the requirement of standards of different product breed, product and range of products. Automobile body of Nextpage punch figuration is online detected sketch map (3) answer car punch to enclothe a quality character to undertake study adequately. The car is enclothed detect project project approving is quality controls a base, its detect project project approving has 2 basises and 2 principles: The first basis is automobile body is enclothed each after forming, the measurement point that must define in order to satisfy an user and assemble a dot to measure datum mark for the product, the 2nd basis is automobile body is enclothed each after forming, must in order to be out of shape most bit measures datum mark for the product; The first principle is automobile body is enclothed each measure a project to decide, must be a basis each are enclothed pivotal character and process character will decide; The 2nd principle is automobile body is enclothed each measure, must be the fastest, the most mathematical measurement technique. That is to say car automobile body is enclothed each figuration and demand of drawing quality control are diverse, so of all kinds enclothe detect the project provides the special requirement that must be aimed at influence product function and material figuration and drawing with testing instrument certainly. (4) should consider to assist equipment to be opposite as far as possible the harmonious sex of whole punch product line. When the enterprise is undertaking car punch line is designed, the exercise manipulator that should consider car punch line above all is configuration, fast change a pattern complementary with carriage ability productivity of contented and of all kinds product asks, be on the move in order to realize a product expedite, reduce a mould to change a pattern time and decrease carry an amount, and should have corresponding product turnover place; Answer to consider to use content shedding to carry a line to make sure whole product line coordinates a gender as far as possible next; To ensure the car enclothes a product quality finally, should mature punch mould is cleaned or the mould rebuilds the configuration that waits for auxiliary processing system. The manufacturing organization of product line shows with the car 4 two lids are a manufacturing organization that introduces product line of this product punch. (1) preparation of punch raw material. The car enclothes a punch raw material to prepare the main job that carries out effectively to have these a few: It is to press size of company product productivity to decide punch raw material prepares area area, corresponding label and corresponding facility for transporting above all; It is to press what manufacturing branch gives out next " manufacturing statement is only " come lot number of norms of brand of material of check and ratify, material, product and product measure; Finally is to press what craft branch designs " product assignment is on the move card " the requirement fills in, the stamping workpiece raw material that will prepare and fill in " product assignment is on the move card " send punch product line to hand in relevant personnel to affirm. (2) the manufacturing organization of punch product line. Enclothing a punch is according to the product complex degree decides technological process commonly. The car is left / inside right front door board punch technological process is bilateral pull delay, pull again delay + the punching that decorate a border + side repairs the edge, punching that decorate a border, flange punching, punching + flanker aperture + side repairs edge, plastics this 6, and the manufacturing organization of punch product line is whether effective implementation product line is produced normally for the key. Accordingly, when must the manufacturing organization that covers a punch product line notice this: The standard that is punch equipment above all is adjusted. Should set by every working procedure " product punch process card " the equipment parameter that asks to adjust every punch equipment correctly, adjust parameter to measure of plant of slide block clamp, slide block closes height, close even bearing opening speed of rate of pressure of pressure of crock of height, balance, pressure boost crock, job, slide block, return the auxiliary equipment that must cooperate to use to every punch equipment to undertake a standard adjust at the same time, if work,the athletic contrail of machine hand and around send makings orgnaization drive automatically the adjustment of speed; Adjust correctly finally is punch mould position. Adjust correctly of punch mould position, should notice amount of mould bearing component, lower mould provides fixed position of amount of pressing plate bolt, mould to sell, pressure of air cushion of position of gas cap staff, fluctuation fills up what the top boosts an amount to adjust compatibly. (3) the time examination of punch product line. The time examination of punch product line, the validity that is the parameter such as open pressure of clamping force of examination production facilities and the overload protection that assist device, burden, clutch above all; It is the stability that checks product objective quality next, examination project has the material blemish, internal injury, craze, burr that cut a margin, aperture burr, pull dot of wool, slippery trace, corrugate, hemp to wait. If discover flaw,must fill in by formulary requirement examining the record gets stuck. The appearance that finally is finished product examination, by formulary frequency second will eligible product is put in appearance to wear aspirant travel to check. Punch mould whole reason enclothes a mould to allow mould surface to have anything but at the car not cleanness and blemish, it is very important that such cars enclothe a mould to arrange, must consider a mould to clean rebuild with the mould etc those who arrange a requirement is affirmatory. (1) enclothe a mould to clean. When the car enclothes a mould to machine formulary batch, what must eliminate mould appearance is not clean, avoid an influence to cover an exterior mass. Mould surface is cleaned must control hydraulic with clear lotion recipe. (2) cover an inspection of mould surface quality. When treatment, discovery has burr, when pulling the blemish such as dot of wool, slippery trace, corrugate, hemp, must undertake checking to mould surface quality instantly, use skin of spun yarn of essence of 200 eye above to undertake clearing to mould surface, the mould clears must use groom technically personnel and clear to the surface use gauze skin order counts strict control, the exterior mass that covers a mould to clear to the car has close check. (3) the periodic appraisal that enclothes a mould. When enclothing a mould to use certain batch, ought to have periodic identification to enclothing a mould, checking a key is a mould fragile ultimate size. If fragile when ultimate size already achieved normal weight, must consider fragile change, must notice: The mould is fragile a mould should be enclothed to undertake full measure test and verify to the car after changing. The car enclothes a quality to control car punch to enclothe quality is controlled even if be aimed at different enclothe a product quality character, by different measurement technique, right different car covers a process that has metrical. Its quality controls a method to have the following kinds: (1) the car enclothes a test and verify of character of raw material quality. The car enclothes a product to be in shape drawing should be passed for many times commonly in the process, such special projects to figuration of influence stamping workpiece and drawing must undertake test and verify. Test and verify of raw material accordance uses raw material to undertake the test and verify of the project such as appearance, dimension, mechanical function, chemical component to place namely, these test and verify are according to examine the formulary project of instructor, method, frequency second decide with data standard criterion asks to undertake. (2) the car enclothes a product measure test and verify. Car of the product such as 4 two lids covering a punch measure is with the standard appearance wearing has sampling inspection commonly, whether to accord with a regulation in order to decide these cover a product measure. Standard type is worn is according to the car the 4 two lids over all dimension that covers a product is mixed assemble requirement design to make, to ensure car 4 two lids cover a product punch measure, the measurement point that wears to these standard type wants fixed calibrating, undertake to measurement point with master body even everyday corrective, detect about what personnel wears size to standard type the corrective result that the result, calibrating result of appearance wearing measurement point and appearance wear measurement point, undertake record and analytic dimension stability by the regulation. (3) the car enclothes a product to assemble positional dimension test and verify. 4 two lids, left, right side wall and automobile body stamping workpiece assemble the car positional dimension test and verify, it is to use commonly flexible check is provided and 3 coordinate measuring instrument comes to cantilever detect, come to these detecting control the stability of these testing instrument and analysis regularly by room of 3 coordinate test data. These cover a product external form complex, make and use standard type to wear difficulty bigger, because this car company is used commonly flexible check is provided will detect these spare parts dimension. At present foreign car company uses laser measuring instrument extensively already to undertake to production automobile body 100% online measure, online surveying a system is current business of automobile factory of world main stream uses extensively survey a system, the range that it measures head and camera to go up to automobile body through installing the laser on the robot, aperture and chamfer undertake sampling is mixed measure, have measure standard of quality of sampling observation automobile body to have again than adoption 3 coordinate bigger rise. Online measure a system to have measure time short, 100% measure, real time deviation detects, real time calls the police wait for an advantage. Through online measure system and the advantage that 3 coordinate measure complementary, can master the size status of automobile body better, provide a help to improve quality of automobile body size. Must notice: Every batches of cars are enclothed of all kinds assembly detects collecting data should be finished below state of same production technology, maintain every to approve a car of all kinds the manufacturing lot number that covers an assembly. Via certificate of proof enclothe an of all kinds assembly to should be built by lot number extend record, in order to have examination of date from sex is used. Every discovers the blemish product of of all kinds assembly in examine, must have done by manufacturing lot number examine record and collect analysis, correct by relevant section formulate at the same time measure and have improvement in quality. CNC Milling CNC Machining