Matrix of machine tool feature and become group of similar coefficient

Time:2023-06-15 13:01:32
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source:GERMAN CNC Machining

1 preface is differentiating in the numerous method of group of unit hardware groups and machine tool group, similar coefficient law is simpler and a application is wider kind. Similar coefficient law is to be calculated first the similar coefficient that measures volume of some kind of statistic, recombine other method becomes the means of group of unit hardware groups and machine tool group with getting. Normally computational likeness coefficient can rely on to be finished by hand only, the statistic that needs to make many machine tool and part works, need many computational time, if pass computation between equipment similar coefficient equipment in group, the facilities number that should want an analysis and spare parts are counted thousands of when, people accepts the ambassador that operation measures very hard in real work law of this one party. The method that the article studies, not only leave out normally must the statistic of machine tool and spare parts works, and can implement automation of similar coefficient calculative, also make use coefficient of machine tool likeness to form the machine tool group of group unit first, the hardware group that forms group unit by machine tool group again builds group of unit methods this kind to be able to implement automation. The classified code system that when classification of 2 JLBM-1 spare parts codes systematic company is applying into group technique, spare parts of usable JLBM -1 classifies coding system to serve as his. Of JLBM-1 system the first, 19 pile up a mutual correlation, the name category code that is a spare parts, the first for thick classification of category of spare parts name, the 2nd for fine classification of category of spare parts name. The 3rd ～ 9 a mutual independence, for the appearance of the spare parts and treatment code, also become independent each other between each other, respectively original to material, semifinished product figure, heat treatment, main measure, precision have code. Every code have 0 ～ 9 pile up a value 10 times in all. The builds the basis part that builds matrix of machine tool feature figure of the matrix of 3 machine tool feature that are based on spare parts encode and the pile up a correspondence each spare parts character that machine a part finish by machine tool treatment. The action of a kind of machine tool also behaves the piles up a correspondence some that piles up a part in the appearance that finish and treatment or certain part character only on treatment. For the angle that uses from the machine tool, the feature of the machine tool does not behave the structure in machine tool itself to go up, behave the function in the machine tool to go up however, behave namely can be in in the machine tool sort of what kind of material, semifinished product is original below scope of appearance, size and precision requirement, the what character that completes what phyletic part on treatment. If can state the spare parts that the machine tool can machine is phyletic, the material sort that can suit, semifinished product is original appearance, part is main dimension, the precision that can achieve, spare parts form that can complete treatment is characteristic, the feature of the machine tool also is expressed. The builds the diagnostic matrix that codes to code with the spare parts corresponding enterprise is classified with JLBM-1 spare parts the system builds a machine tool for the foundation to express a machine tool feature of matrix of machine tool feature. Normally circumgyrate kind spare parts and blame circumgyrate kind the spare parts is to part to become the treatment inside group unit in what differ, in the machine tool in group before, kinds the part that can press a machine tool to be machined in the place in this enterprise is large (take JLBM-1 system the first, 2 pile up as the feature classify the spare parts with encode taxonomy) divide the machine tool treatment circumgyrate kind the machine tool of the spare parts and treatment blame circumgyrate kind the machine tool of the spare parts. Build on the foundation that matrix of builds to get group of unit machine tool groups machine tool feature can be in kinds the machine tool is big. The feature of the machine tool uses × of A10 of a matrix 13 express, the firm of matrix and JLBM-1 system each the correspondence that pile up a value, the 3rd ～ of the row of matrix and JLBM-1 system 5 a correspondence, in decide the 3rd ～ when 9 matrix of a correspondence list elemental extraction to be worth each, to machining circumgyrate kind the machine tool of the spare parts and treatment blame circumgyrate kind the diagnostic matrix of the machine tool of the spare parts is used respectively " circumgyrate kind the spare parts classifies a watch " and " blame add turn watch of kind of spare parts classification " . The spare parts form that can process by the machine tool is characteristic the piles up a 15) of ≤ of I(3 ≤ I and code to be worth Ai to find diagnostic matrix correspondence row of a place and travel (notice the firm is 1 ～ 10, code value is 0 ～ 9, the Ai+1 of corresponding matrix of the Ai that pile up a value goes, the I-2 that piles up an I corresponding matrix is listed) intersect the elemental A[ai+1][i-2] of place, make this element takes a value to be equal to Ai. Be in the 8th of diagnostic matrix, according to the machine tool adaptable material sort is in the 10th in JLBM-1 system the element on the travel that piles up a value to find correspondence makes the value of these elements is equal to a value respectively, matrix the 9th, 11, 12, 13 elements waiting for a row take a cost the method is as same as the 8th. Matrix the dozenth code of system of the 10th corresponding JLBM-1 (heat treatment) , heat treatment and the machine tool that become group unit have nothing to do, can assume the machine tool can fulfil 12 heat treatment functions of an each value correspondence, every element that this diagnostic matrix that piles up a correspondence lists takes a cost from 0 ～ 9, such assuming right from the back the practice that whether spare parts of encode of basis spare parts and judgement of matrix of machine tool feature and machine tool match is necessary truly. Those did not take the element of the value by afore-mentioned methods in diagnostic matrix, those who divide group 8, 9, 11, 12, the value of 13 elements waiting for a row is taken 1 outside, the value of other element takes 0(JLBM-1 system entirely in 10, 11, 13, 14, 15 the code is worth 0 with 3 ～ 9 the code is worth 0 have different meaning) . The one ～ in matrix 7, the spare parts of the character of spare parts appearance that place of 0 delegates machine tool cannot complete treatment or this enterprise is piled up in correspondence without character need is machined with the machine tool. Different company is right same the application of kind of machine tool is may different, same the diagnostic matrix of kind of machine tool differs possibly also accordingly, same the different as it happens of matrix of kind of machine tool feature was mirrorred same kind of machine tool the different technology utility in different company. Build when all spare partses that equipment feature matrix can be in to build the system of spare parts coding of the enterprise census enterprise to machine, also can set out from the function of the machine tool directly, in making clear this enterprise each machine tool is used finish character of appearance of what spare parts treatment, these form are characteristic distribute the part that attributes what sort again, the material that the machine tool can get used to is phyletic, uses semifinished product is original appearance, the main measure scope of the spare parts that can machine, after waiting, the accuracy class that can achieve builds the diagnostic matrix of each machine tool. Apparent, a kind of method does not need to have general investigation to the treatment circumstance of the spare parts after. For example, in some enterprise some machine tool uses the turn that finish kind the spare parts is external " one-way step " (the 3rd, the 1) that pile up a value, " two-way step " (the 3rd, the 2) that pile up a value and " whorl " (the 4th, the character such as the 2) that pile up a value treatment, adaptable material has the machine tool steel of special and casting pig, cast-iron, common carbon and steel of high grade carbon (the 10th, code value is respectively 0, 1, 2, 3) , original figure has semifinished product great ability, cast, forging (eleventh is piled up, code value is respectively 0, 5, 6) , the limits of the diameter of the spare parts that the machine tool can machine is 100 ～ 400(13, the code is worth 4, 5, 6, 7) , length limits is 200 ～ 1000(14, the code is worth 2, 3, 4, 5, 7) , accuracy class is high accuracy " outside circumgyrate face is machined " (15, the code is worth 4) . If the diagnostic matrix of this machine tool is right. After the judgement that 4 spare partses and machine tool match built matrix of machine tool feature, can judge a spare parts to be machined by some machine tool from spare parts encode directly (namely whether do spare parts and machine tool match) . Assume the encode of A of some spare parts is: The diagnostic matrix of the machine tool A of this kind of spare parts is A1a2a3a4a5a6a7a8a9a10a11a12a13a14a15 treatment A A10 × 13, aij is the element of matrix. Whether can A of judgement spare parts adopt the following measure by treatment of machine tool A: Auxiliary code matchs. The auxiliary code of the spare parts is the 10th ～ 15, the 8th ～ of diagnostic matrix row and 13 auxiliary code correspondence. Auxiliary code must match 13 times completely with the 8th ～ of diagnostic matrix, the machine tool just machines this spare parts likely. Assisting a criterion that match is: ≤ of I of Ai=akj 10 ≤ 15, j=i-2, k=ai+1 appearance and treatment code match. The form of a spare parts is characteristic only should one is machined on some machine tool, it attributes the part that place of this machine tool machines. The 3 ～ of the spare parts 9 pile up for appearance and treatment, the part that the one ～ of matrix represented 7 times to equipment can be machined is characteristic, the appearance of the spare parts and the criterion that machine code and diagnostic matrix to match are: Ai=akj ≠ 0 in ≤ of 3 ≤ I 9, k=ai+1, j=i-2 condition falls to hold water once at least. Two afore-mentioned conditions are contented, we say spare parts A and photograph of machine tool A match. The similar coefficient that the in order to that similar coefficient Jaccard puts forward the 5 machine tools that are based on matrix of machine tool feature and spare parts encode forms groups of group of unit machine tool is a basis the similar sex that two machine tools machine a spare parts to place and of the definition. This expression of similar coefficient is: (The Sij in 1) type -- the similar coefficient N of machine tool I and J -- analyses entire part number is calculated the similar coefficient between every two machine tools needs to research a company all circumgyrate kind or blame circumgyrate kind the spare parts is in the treatment circumstance on these two machine tools, workload is quite big. Dividing the machine tool to machine circumgyrate kind spare parts and treatment blame circumgyrate kind spare parts two kinds big hind, use this one similar coefficient to form the machine tool group of group unit, need the similar coefficient between the machine tool in calculating two kinds big, workload is bigger, calculation is particularly complex also, and inconvenience is handled at using the computer. After the diagnostic matrix that builds a machine tool, whether can machine by the machine tool by spare parts of judgement of spare parts encode directly (namely whether do spare parts and machine tool match) . Accordingly, type (denotive similar coefficient can be based on 1) place spare parts encode and redefine of matrix of machine tool feature. The similar coefficient of heavy definition is like type (2) is shown. (The SAB in 2) type -- the similar coefficient N of machine tool A and B -- kinds of the part is large medium spare parts counts type (2) and type (1) photograph is worth just the same than taking. Although be calculated by hand type (2) and type (1) is euqally troublesome, but facilitate code from the spare parts directly with the computer and coefficient of likeness of machine tool of computation of matrix of machine tool feature, the work that the computer should do is only the spare parts encode and matrix of machine tool feature contrast and statistic contrasts result, must work by the statistic of the machine tool that finishs artificially and spare parts normally and calculate trivally by leave out. With type (the method of the hardware group that the machine tool group that the similar coefficient that the form of 2) defines makes through machine tool likeness coefficient builds group unit builds group unit then implements automation very easily. The feature of 6 conclusion machine tool is not to behave the structure in the machine tool to go up, behave however can be in in the machine tool sort of what kind of material, semifinished product is original below scope of appearance, size and precision requirement, the what character that completes what phyletic part on treatment. The matrix of machine tool feature that is based on JLBM-1 spare parts to classify coding system to build is accurate and upper the trait that showed a machine tool. The similar coefficient that is based on spare parts encode and matrix of machine tool feature to be defined with new form facilitates code from the spare parts directly with the computer and coefficient of likeness of machine tool of computation of matrix of machine tool feature, can implement automation of calculative of coefficient of machine tool likeness, the method of the hardware group that the machine tool group that makes through machine tool likeness coefficient builds group unit builds group unit then implements automation very easily. CNC Milling