3 coordinate are measured machine an application in the mould is covered in the car

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Accompany life character rise, the car has made the main component that people lives. People is higher and higher to the requirement of the exterior of the car, character, security, change more frequent also. Cycle of the character of mould of this pair of cars, production raised taller requirement. But the competition as car market is increasingly intense, the price of car and car mould is lower and lower however, this raised extremely tall requirement to car mould industry. Modelling of more and more complex mould curved surface and structure, had become extensive pattern company to must want faced reality. It is with shell plating of car whole side wall exemple, general now by traditional 6 foreword (do not contain open a book to read to fall makings) 4 foreword produce manufacturing instead, the movement of the mould concerns extremely heavy and complicated, inside the back door before the left and right sides that is like a car again board 4 are finished on a mould, of the old structure of mould dimensions compact and visible one spot. Subsequently and those who come is the mould is made must achieve extremely high precision demand, the 3 coordinate that the measurement that should come true to machine quality to mould process must want to have corresponding norms are measured machine. One steam mould finished company general situation in March 2013 the construction of new plant -- increase investment newly 8.

800 million yuan, add land area newly to add floor area 160 thousand M2, newly to add equipment 110 thousand M2, newly 80 are covered. Our mould career ministry is integrated now workshop, it is to be at present in mould industry the monomer factory building with the oldest dimensions, area 6.

70 thousand M2, 260m is long wide, the area of near 10 football grounds, contain mould material preparation, CNC Machining, assemble, debug wait for area, the whole process that makes the mould is made is finished in a workshop that close, the running water that realized a mould to make turns operation. Current, one steam mould has type of door of 4 Italian C00RD3 dragon 3 coordinate are measured machine, Ⅱ of applied France Metrolog measures software. Have geometrical element to measure, form model of the evaluation of tolerancepublic errand, 3D CAD is measured than be opposite and form the function such as the evaluation of tolerancepublic errand. Use at curved surface of mould structure dimension, appearance and stamping workpiece to measure. The mould develops process mould to develop general process is: → of design of structure of → of design of technology of → of analysis of contract evaluation, feasibility is executed cast mould of → machining → to assemble → mould to debug → to make after rectifying and reform → mould to check and accept → mould to deliver goods → spot debugs mould of → of → mould consign to make work. 3 coordinate measure the main application of machine 3 coordinate measure machine in the mould the application in making basically reflects in two respects: Product of control of treatment process quality, mould namely the measurement of stamping workpiece rectifies and reform data with getting a mould. 1.

The process of mould treatment precision controls a mould to produce medium process to control precision to include 4 fields: Dimension precision, appearance precision, position precision, surface precision; The mutual position precision that because the movement of mould job is characteristic,decides a mould is most important. After mould finish machining is finished, passing fluctuation model to build identical coordinate is, to the mould the curved surface of working component, outline and structural dimension undertake metrical, normally the following model is below the circumstance fiducial, after measuring, to the job component does dimension to optimize, get the mould cooperates dimension deviation each fluctuating, undertake correction to the position such as the guide pillar of upper mould, guide plate, raise the positional precision of the mould, avoid the rehabilitate of pair of job component, raise the economy that the mould machines and accuracy thereby, shorten at the same time mould treatment is periodic. Pull with boot shell plating delay a mould to measure exemple of actor melt into, the curved surface that after graph 1a, B presses fiducial aperture to build coordinate to fasten for mould sunken model and punch, measures nods deviation, dimension of guide plate of the mould below this condition satisfies a requirement, guide plate distributinging data sees a table 1. But from data contrast integration analysis, badge mark a side can arise 0.

Of 17mm grind long quantity, increase debug very big workload to be able to affect production cycle. If go up afresh,numerical control equipment is amended model face deviation, criterion finished cost affects cycle very high. At this moment we optimize guide plate with respect to what can fasten through coordinate coordinate measure, come to those who implement punch and sunken standard cooperate precision. Optimized method is to pass those who measure software to plan to combine a function, choice translation parameter gets new curved surface orders a report, be like graph 2a, B, right now guide plate dimension changes to express the data result of 2, be in model below face immobile circumstance, its purify is measured when P6 of correction guide plate, P7 0.

08mm, guide plate P2, P3 deserves to fill up the high accuracy that can realize mould extent to cooperate, already economy accurate, can accuse to spend at the same time very tall. 2.

The measurement to stamping workpiece and get a mould to rectify and reform data to apply 3 coordinate technology to undertake detecting to punch spare parts, more traditional manual check is provided measure having huge advantage, not only work efficiency twice rises, and its detect the process is the actual measurement that the mathematical model that uses a part gets with spare parts surface directly the dot undertakes comparing is opposite, its result data is true and reliable, especially process designing is measured automatically, can come true repeat emersion same result, become the strong data safeguard that the mould rectifies and reform. Because of the characteristic that the mould machines, the eligible not certain production of mould job component gives eligible stamping workpiece product. The mould must produce the stamping workpiece that gives qualification through debugging the ability after rectifying and reform, and the basis that the mould rectifies and reform falls in mould steady state namely try the punch hardware that develops, its rectify and reform the effect to depend on the accuracy that the spare parts measures data, 3 coordinate are measured tremendous effect was produced in this respect. Measure a result to be able to form text to report not only, still can output IGS file format to be used at the mould to change directly, implementation is fast and accurate rectify and reform. 3 coordinate measure the actor defect of machine 3 coordinate are had exceed the advantage that measures limits and freeboard precision, efficient, tall stability, tall intelligence to change greatly, become pilot of pattern company quality gradually strong step, it is current application is mixed most extensively with the most reliable measurement detect equipment, have before the tradition detects the powerful measurement that cannot be likened to function: (1) can exchange data directly with mainstream CAD software, implementation each other is read, the graphical engine that its optimize supports large digital-to-analogue; (2) can solid the line detects now with off line process designing; (3) form of a variety of computational method assess work is poor, its calculation method passes European PIB and American NIST attestation; (4) have those who be aimed at free curved surface a variety of looking for square type, BEST-FIT is right the optimal joint that measures data; (5) report form is diversiform, can satisfy the different requirement of different user; (6) multiligualism accepts a scale, complete window is operated, measure efficiency tall. But because price of 3 coordinate equipment is high, cause quality-related cost to increase; Relative to Bai Guang scanning collects data density small, efficiency is low. The proposal enclothes a mould to make in the light of the car in the choose and buy 3 coordinate are measured when machine, use dragon door type or mobile bridge-type to measure normally machine, exploration space is opened wide in order to obtain on perpendicular direction, should have enough measurement limits, what should overcome large mould at the same time is self-prossessed be out of shape pair of metrical effects, should have bearing 30t, flatness 0.

05mm less than (adjust precision) measure platform. CNC Milling CNC Machining