Logarithm of numerical control lathe controls the demand of cutting tool

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  • source:ASEM CNC Machining
Dispatch of net of machine tool of Chinese numerical control: The composition of numerical control lathe tool is general organic clip type and whole solder type two kinds. What material basically uses extensively is main hard alloy hardness is mixed high high-speed steel tenacity is good. Hard alloy is used at high speed turning commonly, high-speed steel is commonly used at low speed turning. The composition of numerical control lathe tool is general organic clip type and whole solder type two kinds. What material basically uses extensively is main have hard alloy and. Numerical control lathe can hold thick, finish machining concurrently. It is coarsen treatment to be able to be machined with ground of speed of bigger cutting deepness, bigger feed, intensity of cutting tool of requirement thick car tall, durability is good. Fine vehicle is to assure to machine precision above all, the precision of requirement cutting tool is so tall, durability is good. To decrease the time that change a knife is mixed convenient to the knife, answer to use machine clip knife more possibly. General component is the lathe tool that CNC Turning uses 3 kinds, namely lathe tool of sharp contrast lathe tool, circular arc form and shape lathe tool. With straight cutting blade calls sharp contrast lathe tool commonly for diagnostic lathe tool. The point of a knife of this kind of lathe tool (also be its knife at the same time dot) by straight advocate, deputy cutting blade is formed, be like 90º inside, outside round lathe tool, lathe tool of left, right end panel, grooving (break) lathe tool and point of a knife pour arris very small all sorts of outside circle and inside aperture lathe tool. When machining a spare parts with this kind of lathe tool, the point of a knife that the outline appearance of its spare parts basically becomes independent by or linear model advocate get after cutting blade displacement, it and additional the principle that form of spare parts outline receives when two kinds of lathe tool are machined is disparate. Lathe tool of circular arc form is relatively special CNC Machining with lathe tool. Its feature is, form advocate the edge appearance of cutting blade is one circularity error or line outline spends the circular arc with very small error; Blade of this circular arc is the point of a knife of lathe tool of circular arc form each bits, accordingly, knife the dot is not on circular arc, and go up in the centre of a circle of this circular arc; Radius of lathe tool circular arc is theoretic with be had nothing to do by the appearance of treatment spare parts, after can decide neatly by need or determining, affirm. When certain needle form lathe tool or shape lathe tool (like whorl lathe tool) when point of a knife has definite circular arc figure, also can use as this kind of lathe tool. Lathe tool of circular arc form can be used within turning, outside face, particularly appropriate at turning all sorts of smooth join (sunken form) shape face. Shape lathe tool common calls example lathe tool, the outline form that its process a spare parts is mixed completely by the appearance of lathe tool edge dimension decision. In CNC Turning treatment, shape commonly lathe tool has lathe tool of circular arc of smaller part diameter, blame rectangular recessing knife and whorl lathe tool. In CNC Machining, should be used less as far as possible or need not shape lathe tool, the document should prepare in craft when should be necessary to choose truly or undertake defining on machine program sheet. The 　 of structural 　 　 of lathe tool 1, machine clip but basis of 　 of 　 of composition of dislocation lathe tool of clamp structure different can divide for the following kinds of forms. Structure of clamp of prejudicial type of 　 of 　 of · prejudicial type uses a of the end on bolt prejudicial arbor to be bit clamp on arbor, this structure relies on prejudicial clamp, bolt is locked up oneself, the structure is simple, the operation is convenient, but cannot bilateral fixed position. Spend a hour when offset, the precision that requirement razor blade makes is tall, if offset is too big when, yi Song of the razor blade below action is pounded to move in cutting force, because this is prejudicial type clamp structure is comfortable the circumstance at successive and smooth cutting. Structure of clamp of type of lever of 　 of 　 of · lever type applies lever principle to undertake clamp to bit. Should come back when moving bolt, produce clamping force through lever, get on bit fixed position in knife chamfer flank thereby, come back when giving bolt, bit is loose, semicircle canister form plays reed to be able to maintain a knife to fill up the position to be not moved. This structure characteristic is fixed position precision the tall, firm that place firm, get power applicable and reasonable, convenient, but craft sex is poorer. Fixed position of the opening inside bit is on the bearing pin of bit chamfer, accompany inclined plane pressure piece fall by impaction bolt when pressing, wedge piece one side relies on to tighten the protruding stage on arbor, other one side shoves bit past bit the cylinder of the aperture intermediate is sold on impaction razor blade. The characteristic of this structure is the operation goes to the lavatory simply, but fixed position precision is inferior, and clamping force and cutting force are contrary. 　 　 uses structure of clamp of wedge piece type why to be planted no matter clamp means, bit must satisfy the following requirement when clamp: Fixed position of clip of outfit of ① razor blade should accord with the principle of fixed position clamp of cutting force, namely the join forces of cutting force must action is inside perimeter of bit bearing face. Fixed position of dimension of periphery of ② razor blade needs to satisfy located at 3 o'clock principle. ③ cutting force and the join forces of the force that hold clip are locating tool reference plane (bit and cutter hub) on the attrition power that produces must be more than cutting vibration to wait those who cause those who make bit breaks away from fixed position tool reference plane hand in change force. CNC Milling