Those who be based on the economy of DSP lathe is muti_function change numerical control to transform

Of economy lathe muti_function change transform it is in order to transform economy lathe C616 A exemple, lathe structure refers to a graph 1 is shown. Sketch map of structure of lathe of graph 1 C616A is specific the method is: What transform with lathe of ordinary numerical control is different depend on: Tool carrier of will original lathe (or dynamoelectric tool carrier) change for dynamical milling head, use clip to hold of all kinds power (club) shape milling cutter, the main shaft axes of dynamical milling head and lathe center line tall and perpendicular (also can turn 900 as parallel as lathe center line) . Dynamical milling head is undertaken controlling by alone electromotor. Change dynamical milling head is lathe tool carrier (or) of dynamoelectric tool carrier, namely as identical as lathe of ordinary numerical control. Lathe is fore-and-aft (Z to) , lathe is transverse (X to) motion by the numerical control of linkage of the 1st 2 axes advocate the system undertakes controlling. The place of Ⅺ axis Zun Duan in box of C616A lathe main shaft, the gear of axis of Ⅺ of the join in demolishing former lathe, Ⅻ axis (Z ＝ 100) , with FWl60 all-purpose dividing head and Ⅺ axis Zunduan joins, choose another pace to enter electric machinery (enter parameter of electric machinery technology to the pace with X identical, t ＝ 5mm, displacement control precision is 0. 005 Mm) enters electric machinery and FWl60 all-purpose dividing head to input worm join to the pace for Y, accordingly, the whirl that can realize Ⅵ of lathe main shaft is controlled (make Ⅵ of lathe main shaft is in neutral position) right now. FWl60 all-purpose dividing head and Y are into electric machinery installation to the pace on cast-iron bracket. Removed cast-iron bracket, mount Z ＝ the gear of 100, axle box of original owner of recoverable common lathe and the drive that feed moves join. The whirligig of main shaft is undertaken controlling by the numerical control subsystem of linkage of the 2nd 2 axes namely. Subsystem of this numerical control by numerical control advocate systematic post a letter dictates control is started move. System of 2 numerical control is best and same, the synchronism that machines process designing and CNC Machining in order to go to the lavatory undertakes. Y enters the input worm of electric machinery and dividing head to join directly to the pace, the drive that chooses dividing head compares for I ＝ 1: 40, y turns into electric machinery to the pace 1 turn, drive dividing head main shaft to turn 1 ／ 40 turn, y turns into electric machinery to the pace 40 turn, can drive dividing head main shaft to turn 1 turn. And by system of transmission of lathe main shaft (1) seeing a picture is knowable, dividing head main shaft is rotational 1 turn, drive lathe main shaft to turn 1 turn. In X of numerical control lathe to in moving control, x enters electric machinery and transverse ball guide screw to join directly to the pace, when the movement president that gives T ＝ 5 Mm is spent, ball guide screw is rotational 1 turn, x also turns into electric machinery to the pace 1 turn. Should give Y to spend Ly ＝ to movement president 5 × when 40 ＝ 200mm, can control Y to turn into electric machinery to the pace 40 turn, control lathe main shaft to turn namely 1 turn, control in order to come true to the whirl of workpiece. Additional, from " machine long manual " check, in catenary of drive of C616A lathe main shaft, can adjust the degree of tightness of clutch bedspring to transfer cutting power in order to get different ultimate pressure. Via afore-mentioned C616A lathe after transforming, have 3 coordinate linkage and random the function of linkage of 2 2 coordinate. The transforms the core that controls a system to use American TI firm electric machinery of 2 control system controls TMS320F240 of chip of special DSP microprocessor. It has high-powered DSP kernel and function of rich small controller peripheral, the small control system that already made the tradition such as MCS-51 and costly multichip design a kind to replace a product cheaply. Compare with other program photograph, it not only have processing of high speed signal and digital control function, and controlled application to offer sheet into electric machinery and other electric machinery for the pace piece the peripheral equipment with solution indispensible place. 2.

1The implementation DSP TMS320F240 of system of DSP TMS320F control is main by CPU (the ability of high speed operation of 20MIPS) , 544 × of 16 piece inside 16FLASHEEPROM of × of RAM, 16K, incident management implement, piece inside and outside surrounds interface module (EMIF) wait for a few parts to comprise. Have electric machinery pilot distinctive resource has: Wide modulation of arteries and veins of 12 general timer, PWM is outputted, converter of A/D of 2 10 8 passageways, SPI and SCI: ? A surname of  sauce  steamed bun emerges beat up of Song ⒖ defect punishs ╓ ATCHDOG) interrupt timer with real time (RTI) . Because high speed of numerical control system spends the requirement with high accuracy, choose TLV5616 of converter of 12bits serial D/A, this parts of an apparatus contains agile 4 lines serial interface, can not have seam join F240 serial mouth, use converter of 12bits collateral A/D, the output that collects controlled object conveys F240, f240 amends control input well and truly according to dominating algorithmic real time. Because the in-house memory of TMS320F240 cannot satisfy need, must undertake expanding, expand program memory for 64K × the SRAM of 16 deposits spare parts machine program, data memory expands for 64K × the FLASH ROM of 16 deposits systematic program. If the block diagram of construction of system of C616A lathe control that comes true with DSP TMS320F240 pursues 2 are shown, if the graph of principle of structure of DSP hardware route of whole lathe pursues block diagram of principle of hardware of system of control of lathe of 3 DSP of graph of block diagram of construction of system of control of 3 2 DSP that show a picture 2.

2 cars mill is muti_function after the numerical control principle of treatment is transformed through afore-mentioned numerical control, numerical control advocate the system can control Z to, X to motion move; Also can establish ties with numerical control subsystem, at the same time implementation control and Y move to athletic linkage (Y of numerical control subsystem to by numerical control advocate systematic post a letter dictates control starts moving) . Numerical control advocate the linkage treatment flow control of system and subsystem is shown 4 times like the graph. Graph 4 advocate, child 3 last words use flow chart of treatment of linkage of numerical control system this method undertook transforming to C616A of the economy of center of my courtyard numerical control lathe, the numerical control vehicle with came true to be able to undertake on a lathe proper, mill, cut wait for muti_function treatment. The treatment that can have basically has: Axis kind the divide into equal parts on the spare parts or differ cent is planar; Axis kind the of all kinds keyway on the spare parts; Milling machines guide screw; Milling axis kind the groove of spare parts end panel and cam face; Turning processes a rod kind spare parts; Cast grind treatment axis kind spare parts. Additional, the good performance of DSP system assured high accuracy of pilot of numerical control servo, tall stability, high rate, carry out a proof, raised the precision that the spare parts machines greatly, extended the size range of pipe bent of numerical control lathe and quality, have very strong practical. CNC Milling CNC Machining