Private plane of machine tool of simple and easy numerical control is changed use
- source:BAGANZ CNC Machining
06mm, and tolerancepublic errand is 0.
03mm, percent defective <2.
5% : Cutting is circumferential deep chamfer (wide × deep =6.
5mm × 15mm) often loses a condition, serious obstacle normal production. Because broke a pace to change coordinate position, dimension is very flabby calm, often need do poorly done work over again. Process is complex bring about cutting tool much and form is complex, blade is ground and be hard to hold key, every need the handlers with higher level of 4 seasoned, technologies to open 4 machine tools, ability satisfies pull current to know rate, and actual condition cannot fit team and group. Theory and real vast difference, its reason basically depends on the difference of machine tool of simple and easy numerical control and machine tool of ordinary numerical control. Machine tool of simple and easy numerical control is to use primary general accuracy machine tool to change one's costume or dress mostly, besides add system of numerical control of outfit machine tool and a few to change one's costume or dress outside feed system, the others does not have a change, because this mechanical function of primary machine tool is basic changeless, cutting dosage also cannot be increased, single labor situation can not improve efficiency. In addition, the pace that the place of machine tool of simple and easy numerical control at that time configures slants into electromotor load ability small, cutting obstruction is largish lose a condition often namely, because this must lower feed rate. If grooving is versed in pace feed speed is forced to fall the 1/3 of primary general accuracy machine tool, although automatic changeover is faster than general accuracy machine tool between labor situation, but still enter not apply goes out, total efficiency is inferior. Machine tool of simple and easy numerical control is chosen commonly match open loop to control a system, actual feed also is adjusted without trends without feedback, be aware of to breaking a pace to be without, its feed precision and the numerical control machine tool that use closed-loop control are compared, put in the difference with qualitative move. In addition, the tigidity of system of feed of machine tool of simple and easy numerical control that changes his costume or dress with general accuracy machine tool is far be inferior to numerical control machine tool, accordingly, the element such as sharp to size of surplus of material hardness difference, semifinished product, cutting tool degree is more sensitive, dimension disperse rate is older. To belt of lesser public errand, its are actual process capability often is not worth, reason cannot be used simply at the circumstance with precision high demand. Machine tool of simple and easy numerical control because its pallet or change one's costume or dress the element influence such as quality difference, working environment difference, fault rate prep above is general numerical control machine tool. Be like working procedure content too concentration, any one labor situations malfunction stop machine processing, make rectify working procedure suffocate suffocate, current to product line impact is bigger. Affect in quality respect also big, situation of labor of exemple as above should lose a condition only 9 pulse equivalent, follow-up fine vehicle discards as useless with respect to hard to avoid. Generally speaking, need pilot movement to change frequency and fault rate to become direct ratio. For example the breakdown that circumgyrate tool carrier uses 4 dislocation comparing to use a dislocation only makes an appointment with 4 times high. Accordingly, machine tool of simple and easy numerical control does not apply to the circumstance with working procedure complex content. Realize the bigger difference of machine tool of simple and easy numerical control and numerical control machine tool, its suitable scope was broken through to provide a basis on the idea for us. How can ability make machine tool of simple and easy numerical control gets taller economic efficiency? One of the basiccest measure are its grow raise, avoid its are short, and private plane of machine tool of simple and easy numerical control is changed use just accomplish this effectively. Above all, the price of machine tool of simple and easy numerical control not only far under machine tool of ordinary numerical control, far still even under special machine tool. Use original general accuracy machine tool to change one's costume or dress, of a machine tool increase investment to make an appointment with 20 thousand yuan only. Accordingly, machine tool of simple and easy numerical control makes private plane make appliance has very good economy and performance/price ratio. Next, private plane product line often can produce a kind of product only, if want to change product, the clamping apparatus that or needs pair of primary machine tools and dynamical part are made bigger alter, or makes product line of a private plane additionally, its change cycle to grow, cost is high, suit very hard to ask in order to sell the market of a system of fixed quotas for grain production now. And the product line that machine tool of simple and easy numerical control forms, technology is flexible almost as identical as numerical control machine tool, can follow need meet an emergency. For example product line of front-wheel drive hub, stored at the same time in numerical control system the machine program of carapace of the front-wheel drive hub of two kinds of model, rear wheel, when spare parts breed is changed, need v only corresponding machine program, change a few cutting tool can. To the small lot production of trial-produce product, want filling input machine program only, can come true immediately. Come 7 years, this product line finished the job that decides formerly well not only, still be in cooperation part (same part or different spare parts are like rear wheel carapace) the moment of truth with big gap of form a complete set produced main effect. This shows, the technology that machine tool of simple and easy numerical control makes private plane make appliance has general and special machine tool to cannot be likened to is flexible, can better land gets used to market demand. Private plane of machine tool of simple and easy numerical control is changed use to avoiding its are short also have profit very much. Private plane changes one of use specific characteristics is each working procedure treatment content is more onefold, cutting time is roughly equal, make each machine tool unused latency time is less, develop the productivity of all fronts adequately thereby. This is meant so too working procedure content of concentration needs break up the whole into parts, make every working procedure simpler. This and existing theory run in the opposite direction almost, but because such, avoid a lot of demerit of machine tool of simple and easy numerical control effectively: After thick car, half fine vehicle and fine vehicle are detached, dimension public errand expanded severalfold or ten times, to machine tool of simple and easy numerical control, without striking a blowing can achieve dimension precision and precision consistency requirement. In addition, because cutting tool is little and outfit attune is convenient, handlers leave out mix to the trouble of the knife with microscope time. Because the operation is simple and easy, quality is stable, one person attends to 2 machine tools freely easily, with one action heightens effect nearly one times. Ø52-0 of around of depart of wide choice vehicle.
Deviation of standard of comparison of 023mm aperture quality (index of Mm) process capability is actual percent defective (before %) annotations is improved 2.
5 first time are improved 0.
Full independence of unfinished of 8 fine vehicle is improved the 2nd times 0.
After 1 fine vehicle becomes independent completely and foreword of energy lathe operator becomes independent, system of machine tool feed gets power slight, precision consistency rises significantly. Because do not turn,tool carrier and behavioral changeover seldom reduced error source thereby, disperse rate falls, process capability index rises. It is with quality of aperture of Ø52mm of vehicle of fine of this working procedure here exemple, refer to right watch. This shows, although precision of machine tool of simple and easy numerical control is inferior to machine tool of ordinary numerical control, but after the working condition that improves it through a few special measure, its precision standard can satisfy general precision work to ask. Does this one characteristic have very big economic meaning: ? of Quan pours act of refute of of Tao of of ㄊ of anxiety of ば Ran blown away by wind washing with watercolors dust smalls piece of land surrounded by water chloric stitch the sole to the upper of food container of Jiao of barren of sew storehouse makes fun of to kill?0 of Chi of the that save hurry times above. Because working procedure content is simple, need pilot movement to change number to decrease greatly, fault rate is reduced apparently, made sure product line is able to move normally. In the meantime, private plane changed effective ground to accelerate a spare parts current, decorate to the machine tool, spot management and safe and civilized production are very advantageous. Because each working procedure is lopsided,go, certain process often occurs workpiece to pile up in great quantities, open way to free, sweep scrap, quality inspection, balanced production to wait all influential. After private plane is changed, phenomenon of spot block sluggish decreases apparently. Private plane of machine tool of simple and easy numerical control is changed using the most remarkable to product line of front-wheel drive hub profit was to improve manufacturing efficiency substantially, obtained very good economic benefits. Private plane is changed after improving, the product line of front-wheel drive hub that arranged two actually to run paralell (facilitating handlers one person attends to the stability) that the machine tool of 2 same process raises pull current to connect, effective month output rises 3700 times from before 5700, already achieved 7000 at present. Set product line to be substance of economy of independent business accounting, with the spare parts treatment cost is its income. Because manpower, material resources and overhead expenses are approximate at changeless (actually operation personnel decreases and the machine tool increases somewhat, ) of disappear of balance of expense general interest, and productivity rises, the treatment cost that increases a product completely can regard direct economic benefits as. Come 7 years, produce per year a quantity actually to make an appointment with 70000 on average (suffer a plan to restrict) . 3700 are produced per month before improving, produce per year for 3700 × 12=44400() , from this year of actual increase production for 70000-44400=25600() . Every treatment cost is 20.
63 yuan, year add receive treatment to expend for 20.
63 × 25600=528128.
00(yuan) . In addition, because two process are actual percent defective is aggregate dropped 1.
1% , can reduce waste every year 70000 × 1.
1%=770() , every value 72.
63 yuan, year reduce reject loss 72.
63 × 770=55925.
1(yuan) . Aggregate year increase income 58.
40 thousand yuan. Deduct increase investment 520 thousand yuan, accumulative total of actual beneficial result already amounted to 3.5 million yuan. Carry out sufficient proof, private plane of machine tool of simple and easy numerical control is changed use increasing production the side effect such as quality of efficiency, product and economic benefits is distinct. Accordingly, machine tool of simple and easy numerical control can make private plane completely be used at large quantities of quantities to produce. Think over with this, whether can design of special machine tool also apply numerical control technology to raise its is technology flexible raise its performance characteristics thereby? CNC Milling