Cylinder body is flexible product line program

3L, 1.

5L, 1.

6L, 1.

8L; Differ according to air cylinder amount, have 12 crock, 10 crocks, 8 crocks, 6 crocks, 4 crocks wait; The kind that forms according to air cylinder is different, cent is W model, V, straight line. In engine production, the production of cylinder body is a crucial link. Current, the business of car of auto industry requirement that high speed expands is in " fall this synergism " while must make oneself product develops to much breed direction, that is to say, if why produce the product that gives more kind inside the shortest time, will be the success or failure in deciding an enterprise to compete in intense market crucial. So, in the production of engine cylinder body, how to accomplish much breed cylinder body in all line production? Select kind of that kind of product line? Machine craft and equipment to engine cylinder body, use domestic and internationally at present more is modular machine tool what automatic product line, machining center and modular machine tool confuse a line is flexible product line. Transfer matic PK is flexible group adds up to a machine tool automatic product line can undertake much axis is machined, manufacturing efficiency is consequently taller. But should satisfy at present much breed spare parts in all the requirement that the line machines, use this kind of automatic product line to appear have too many problems to deal with. Because modular machine tool uses design of much axle box, get at the same time of pitch restrict, although the content of treatment of every machine tool is very few, manufacturing metre is shorter, but the machine tool that includes on whole automatic product line is much, product line is arranged those who decorate is very long, in advance investment is very large, later period technical reformation comes true not easily also. Accordingly, the application of this kind of product line is in showed level to be restricted. Use machine tool of private plane machining center and composition of modular machine tool confuse a line flexible the dominant position that product line can develop modular machine tool and machining center adequately, those who realized modular machine tool is efficient as flexible as machining center the unity that change, main characteristic is as follows: □ stresses the dominant position that working procedure of machining center machine tool amasses, treatment is completed inside the range that all Kongdouke that goes up to same plane permits with be being measured in knife storage capacity, do not accept workpiece pitch restriction, every working procedure can choose first-rate cutting parameter, because the coordinate of aperture is controlled by the computer, the position of aperture machines transfer matic of tigidity of precision prep above; After □ adds station of numerical control circumgyrate, same clamping apparatus can realize work much way to machine, reduced clamping apparatus breed and clamping apparatus cost; The cycle that □ should improve to the product is short, if increase treatment working procedure to be able to come true through process designing, also can cancel a certain working procedure from inside machine program likewise, very convenient; □ confuses a line this kind flexible product line, highlighted modular machine tool to be in aperture of treatment air cylinder, advocate the efficient advantage when oil duct grows the special working procedure such as aperture, headstock aperture. Be opposite through above the comparison of type of two kinds of product line, can conclude -- flexible the advantage that the line has transfer matic of rigid modular machine tool to cannot be likened to: □ designs cycle short, investment is little; □ product line is short, cover an area of an area small; □ when some equipment occurrence malfunction, won't cause whole line stop production; □ working procedure is centered, manufacturing metre is long, but the inadequacy that can decorate machining center machine tool to overcome manufacturing metre to grow through standing side by side, achieve whole product line to produce the balance of metre. If program case is used flexible the line realizes much breed product in all line treatment, when original products plan, must the treatment of will different product is standard with the design fiducial accomplish unified, increase on the clamping apparatus of every machine tool that forming product line adjustable the difference that link will come to coordinate cylinder body structure to go up. Graph 1 cylinder body is flexible product line is straight layout pursues 1, the means that the product line that the graph shows 2 times uses linear layout and band of paratactic layout photograph, add up to line place to use motor-driven raceway in branch line, on workpiece, next makings use a hand to change way, the raceway that carries work is decorated in the machine tool a side of automatic door, this kind of layout and foreign high speed are nimble type is flexible the means posture that product line adopts manipulator and pace style conveyer belt to carry work is compared, efficiency wants a few lower, but investment is small, accord with the national condition of our country quite, produce metre existence difference as a result of different machine tool at the same time, so an operation personnel can operate 3 machine tools commonly. Graph 2 cylinder body are flexible product line is paratactic layout (among for motor-driven raceway) go up in the choice of equipment, be aimed at actual production situation, we undertook more reasonable configuration. When choosing engine crock aperture and headstock aperture honing machine for example, in the honing machine that factory of major of domestic honing machine produces at that time, the quote of 3 honing machine is equivalent to the 1/3 that German case Lin Gong manages a honing machine quotes only, but after the course makes an on-the-spot investigation on the spot to Shanghai popular and communicating, the product that we still decide finally to buy German case Lin Gong to manage -- the double axis duplex operation of honing of aperture of the crock that finish vertical honing machine (pursue 3) the horizontal push-pull that Kong Hang of the one stage, headstock that finish grinds, make the dimension precision of the product, coaxial is spent thereby, verticality, reticulation got sufficient assurance. Pass experiment test and verify for many times, the crock aperture honing that at present we use successful already and homebred change, saved cutting tool cost greatly thereby. Graph the duplex operation that Lin Gong of 3 Germany case manages vertical honing machine to the cutting tool in product line, in actual production, the design existence flaw that we discover to some machine cutting tool. When using installed surface of filter of engine oil of machining center milling for example, the φ as a result of the choice 63 dishes of milling cutter (graph 4) tooth is less, the cutting negative charge that creates tooth is too big, often appear the phenomenon of tooth of frowsty car batter. Cutting tool workshop section was made after improving, used the Waerte that do not have stannum φ 100 dishes of milling cutter (graph 5) , tooth increases, the bear of tooth is reduced, at the same time the point of bit became 8 by 4, milling rate also incline to is reasonable, assured the flatness of filter installed surface, raised product sealing. Aborning, machine the cycle changing a knife when different spare parts to decrease, compound cutting tool is used in great quantities sometimes on product line, but way of this kind of treatment is just the opposite to what one wished when complex process is too much. For example, on cylinder body treatment gets the Kong Shi end M8 screw (graph 6) , process is complex φ 6.

7 aperture, quarrel pouring aperture 1 × 45 ° , blow 24 plane of φ , use integral blade to grind cutting tool, because cutting tool puts what big, broach contacts first in the diameter to change,be face of rough semifinished product, broach is easy tilt, when strickle face, cutting knife is too long, cutting fights muscularity, often appear collapse blade mixes cutting tool to pour horny part to be torn open in 45 ° . The course carries out an analysis, we are final still instead first mill is planar, mix with compound knife bore next horn, solved a problem. Cylinder body of China general of Shanghai of epilogue of sketch map of bottom outlet of screw of graph 6 M8 is flexible product line put into production comes 3 years, practice proves its build fast, efficiency tall, at present whole product line is produced per year already can achieve 100 thousand, and machine precision stability, accord with product demand. CNC Milling