Programming of numerical control punching machine introduces

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  • source:EDON CNC Machining
As the development of punch equipment, numerical control is strong cut treatment craft into parts to be used increasingly, the article develops the craft characteristic of treatment through consider and analysing numerical control, offerred a few item that ought to notice in the programming of numerical control punching machine, elaborated with corresponding example specific the accurate method that completes each work. Numerical control punching machine is according to the machine program that has woven beforehand, undertake rushing reducing the facility of treatment to Ban makings automatically. Good machine program should make sure treatment gives the eligible part that accords with design requirement not only, also should make numerical control punching machine gets rational application makes its function gets sufficient play at the same time. When undertaking numerical control programming, no matter be manual process designing or automatic process designing, the part that wants to be machined to place before process designing undertakes craft is analysed, next protocol treatment program, make correct and reasonable treatment process, choose likely pattern and treatment career even. In the design of numerical control program, should notice the technique of a few programming more. If ignored issue of details of a few technology, sometimes although machine program is correct, but the technique as a result of the program is unreasonable, also cannot machine the part that gives qualification at all, have more very person, meet those who cause a machine tool call the police reach damage. Numerical control of article put up with develops the common problem in programming to undertake analysing, give out in the light of specific issue corresponding settlement method. Numerical control is strong check programming process analyses   1.

Punching machine of fiducial numerical control is machining the process designing with right choice in, it is the origin with the machine tool is fixed position fiducial, usually, also be with this fiducial for process designing fiducial. But choose appropriate process designing sometimes fiducial, can drop the numeric consideration in programming greatly, reduce block and process designing workload, the readability that increases an order and can revise a gender, reduce the mistake in programming. Process designing is fiducial and OK choose any places in spare parts or machine tool, but must the fixed position with the spare parts is standard have affirmatory concern. To assure to machine precision, reduce the computational amount in programming, process designing is fiducial should choose to be being designed as far as possible fiducial or craft is fiducial on. 2.

Working procedure utmost amasses the dominant position for machine tool of sufficient play numerical control, increase production efficiency and assure to machine quality, the principle that working procedure utmost should follow to center in process designing is machined in numerical control punching machine, namely the spare parts is in in outfit clip, what do one's best finishs machine tool of this stage numerical control to be able to be machined is all model the treatment of aperture and appearance, prevent to appear repeat fixed position error. To must duplicating the part of fixed position a little, also answer mature the method that repeats fixed position, and appearing below the situation that repeats fixed position, in also should making the opening that has relevant measure machines fixed position in as far as possible, can finish. Because regard a group of concerned couplet as dimension,ask model aperture, if divide second fixed position to machine,finish, appear extremely likely machining error, cannot assure the requirement of associated dimension, the dimension precision that short of spare parts asks. 3.

Choose to change modular order to reach cutter track line to be in the programming of numerical control punching machine reasonably, ought to choose the reasonable order that change a pattern, its are general the principle is: First round hole is rear aperture, first alveolus hind large hole, first among hind appearance. After at the same time a mould is choosing in order to, stem from shorten the consideration of handling time, should finish all need that its get on in this spare parts to machine model aperture. Also should choose the optimal route taking a knife of the mould while logical choice changes modular order, in order to reduce idle stroke, improve manufacturing efficiency, assure machine tool on the safe side move. 4.

Logical pincers place and fixed position of pincers of every time of punching machine of shift means numerical control have certain size range of pipe bent, be like PEGA-345, the size range of pipe bent that pincers locates is: X direction 1270mm, y direction 1000mm. This journey should exceed in X direction when, with respect to the treatment that must finish the rest through pincers shift. When pincers shift, above all, press makings piece to pin Ban makings, pincers is loose, the position that pincers moves to appoint, again clamp, continue to machine. Numerical control punching machine is in treatment, because the gulde edge linearity of wool preform is bad, the pincers position, seat that controls makings piece is undeserved, it is very easy that the appearance adds man-hour occurrence step, individually model the dimension public errand of pitch edge also assures hard. Through long-term process designing practice and production are operated actually, summary gave the following experience. (1) the linearity that should make sure gulde edge is nice as far as possible, below essential condition, the bed can be cut to go up in numerical control again essence of life cuts one knife into parts; (2) the pincers position of first time should as far as possible big, get in order to make pincers clip is held more smooth, reliable; (3) can be in the aperture that does not machine below the circumstance of shift, should machine as far as possible finish; (4) the opening that has relevant measure, answer to be finished in the treatment in shift as far as possible; (5) have good tigidity to make Ban expects, answer to accept a few small connection more appropriately; (6) the seat that controls makings piece: Y direction should be pressed in the central position that Ban expects, and the seat that should be controlled in deflection pincers to want shift in X direction. Want when to accomplish above only, with respect to a series of problems that can overcome pincers shift to bring well, assure the qualification that the spare parts machines. 5.

Logical platoon makings way to medium or small the numerical control of the spare parts develops treatment, assist treatment man-hour to shorten, spare handling time, raise the utilization rate of material, use composing machine program commonly. Composing machine program can be divided for automatic composing and artificial composing two kinds. The advantage of automatic composing is simply by process designing person the editor gives single order, create composing program automatically by software next, when the province, save labour, and the course taking a knife, order that change a pattern is relatively reasonable. But, such doing have two big disadvantage: (1) when cannot carrying out program of first treatment composing strictly to machine, because be batch treatment, because this must have first item inspection. But, should accuse ark to go up by come off work " FIRST " when key, do not machine thoroughly give the first part. Brought certain difficulty to first item inspection so, create rejection of lot easily. (2) the order that because automatic composing arises,the editor sex of automatic composing needs can be read gender and can edit a gender poorer, when treatment midway occurrence program mistake, machine tool calls the police, when coiled strip makes the machine tool stops urgently with etc circumstance, removing call the police, eliminate hidden trouble hind to continue very hard to machine again. In view of afore-mentioned reason, we use the method of artificial composing commonly. Is its format: ?  98Xxa Yya Icx JcyPnx Kny; G75 of   of   of V00 of block   of   of U00 of composing setting   (G76) W00 Q0; Block is called want us only reasonable arrangement changes modular order to reach cutter track line, artificial composing can be rivalled with automatic composing photograph, and can eliminate afore-mentioned two old corrupt practice completely. And, when Ban expects norms is skimble-scamble, to the change of the spare parts amount of treatment wanting on Ban makings, need to change value of the P in G98XxaYyaIcxJcyPnxKny, K only, can complete pair of programs easily revise. 6.

The readability with numerical control good program, design method that can modify program of sexual numerical control has two kinds: Manual process designing reachs automatic process designing. Method of manual process designing is to point to from the analysis part drawing appearance, make procedure, calculation coordinate dot, write spare parts machine program the school nucleus till the program, whole process is by what finish artificially. Not quite complex to the spare parts, the computation that coordinate nods compares simple situation, use manual process designing to compare easy implementation. But more complex to the appearance, the computational difficulty that coordinate nods compares large part, should use automatic process designing. Till the program is generated,automatic process designing is the computation that shows from craft processing, coordinate is nodded, school nucleus is finished completely by the computer. Compare with photograph of manual process designing, the process designing quality of automatic process designing and efficiency rise greatly. No matter be manual process designing or automatic process designing, it is good that the numerical control program that produces should accomplish standard of program structure clarity, statement, readability, can revise a gender strong. Especially to sheet production of small lot numerical control, the likelihood needs to accuse ark to go up to undertake modification to the program in machine tool labour at any time, adjust, the readability of the program and it is important all the more to can revise a gender to appear. In the meantime, to simplify process designing reachs modification job, when some paragraph treatment working procedure and treatment course repeat when using, to shrink length of short distance foreword, answer to use subprogram and macroinstruction as far as possible, be helpful for the optimization that CNC Machining process designing works thereby. Sum up the programming of numerical control punching machine, not be the process of a pure code that can identify machine tool of blueprint paper translate into, staff of first-class numerical control strong process designing ought to be outstanding craft above all design personnel and staff of first-class machine tool operation. They are accomplished to each parameter of machine tool and machine tool understand adequately, accomplish know fairly well to all moulds. When programming, should the treatment craft characteristic according to numerical control punching machine, undertake comprehensive analysis, want to make sure the work out gives right numerical control order not only, should make sure treatment gives eligible part more, also should make numerical control punching machine can get rational application and sufficient play at the same time. CNC Milling CNC Machining