Specification of CNC system of Zhongda lathe

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Zhongda lathe CNC system specifications

Abstract: through a comprehensive introduction to Zhongda lathe CNC system specifications, it provides a concise and fast design convenience for the introduction of Zhongda lathe CNC technology

key words: Delta CNC system CNC lathe design quotation

1 introduction

according to the technical requirements of automation engineers in the research and development of CNC projects in the machine tool industry, it is convenient to concisely and quickly quote Zhongda lathe CNC automation technology in the design process. The specifications of Zhongda lathe CNC system sorted out by the system are mainly divided into three parts: technical specifications; Overall dimension; System standard accessories and options. For Zhongda lathe CNC technology reference to provide a glance of convenience

2 technical specifications

2.1 coordinate axis

(1) control axis: X and Z axes

(2) linkage axis: X and Z axes

(3) control form: pulse (a/b; cw/ccw; drict/pulse three pulse forms can be parameter selectable)

(4) adaptable motor: servo motor (delta B series 500W middle inertia)

(5) coordinate value range: ± 9999.999mm

(6) minimum command unit: 0.001mm

(7) maximum pulse frequency: above 500K

(8) with resolution function (electronic gear ratio), it can be freely set according to the situation of the customer's machine tool

2.2 coordinate system

(1) x, Z rectangular coordinate system, X axis is perpendicular to the spindle axis, and Z axis is parallel to the spindle axis direction

(2) it has mechanical coordinate system and program coordinate system. After starting up and returning to the zero point of the machine, take this point as the coordinate origin to establish the machine tool

coordinate system. In addition, according to customer requirements, no fixed mechanical origin can be set, and any point can be set as the mechanical origin manually

(3) absolute coordinates: expressed in X, Z

(4) relative coordinates: expressed in U, W

2.3 interpolation function

(1) linear interpolation

(2) arc interpolation. Provide R and i/k mode programming

2.4 thread turning function

(1) G32: single head metric/item system equal pitch thread (straight thread, taper thread, end face thread) processing, multi segment continuous thread processing

(2) G92: single head metric/item system equal pitch thread (straight thread, conical thread) processing cycle, thread tailing length and angle can be set, and high-speed tailing can be set

(3) G76: composite thread processing cycle (g71~g76 functions are improving)

2.5 feed function

(1) fast movement: x-axis and z-axis move at their highest speed (parameter setting), and the actual moving speed is related to the fast moving times

rate (at least four gears, especially for some cases with despicable environment, the positions can be adjusted F0; F25; F50; F100)

(2) cutting feed: in the program, the cutting feed speed given by the f command is the tangent speed of the interpolation track. The actual feed speed is related to the feed rate (16 gears can be set. 0~150), among which: g98 (feed per minute); G99 (feed per revolution)

(3) manual fast movement. In the manual mode, the X and Z axes (not both axes at the same time) move at their highest speeds. The actual

speed is related to the fast shift magnification

(4) manual continuous feeding. In the manual mode, the X and Z axes (not both axes at the same time) move according to their respective set speeds (parameter setting

). The actual speed is related to the feed rate

(5) manual single step feeding: manually step down the X and Z axes (not both axes at the same time), single step feeding, single step step step size

0.001; 0.01; 0.1; 1mm four gear adjustable

(6) electronic handwheel feeding: in the handwheel mode, use the electronic handwheel to control the movement of X and Z axes respectively (not both axes at the same time),

pulse equivalent 0.001; 0.01; 0.1mm four gears are adjustable

(7) handwheel test feed function: in the automatic mode, open the test function startup program, and use the electronic handwheel to control the range


The main elements exceeding the standard are cadmium, mercury, arsenic and fluorine

2.6 acceleration and deceleration

(1) linear acceleration and deceleration

(2) S-type acceleration and deceleration

(3) master slave mode function (parameter setting, M-code control)

2.7 spindle function

(1) spindle speed simulation voltage (0~10v) control

(2) spindle speed multiplier adjustment (0~120 13 gear adjustment)

(3) G96 constant linear speed control (s gives the cutting linear speed value, unit: M/min.)

(4) g97 constant linear speed control (s gives the spindle speed, unit: RPM)

(5) support the automatic shift of the fourth gear main shaft (can be controlled by M code, such as m41~m44)

(6) the number of encoder feedback pulses can be set according to the number of encoder wires purchased by customers

2.8 tool function

(1) controllable tool number: 4~8 bits

(2) tool position signal input mode: direct input

(3) tool change mode: positive tool change, in place reverse locking

(4) tool setting method: window dialogue, fixed-point tool setting, trial cutting tool setting, etc

2.9 tool supplement

(1) tool length supplement: at least 16 groups (preferably 40 groups) supplement

(2) tip radius supplement: 0~9 (tip direction)

(3) tool wear compensation

(4) support incremental setting of tool compensation, and support setting of tool compensation in automatic mode

2.10 precision compensation

(1) reverse gap compensation: it can compensate for X and Z axes, and the compensation range is 0~2000 (unit: 0.001mm)

(2) pitch error compensation (can be used as an optional function): it can supplement the X and Z axes

2.11 program and programming

(1) user program capacity: 256Kb (preferably 512KB or more), 999 programs

(2) instruction format: Standard G-code instruction, absolute/relative hybrid

(3) subroutine: up to 5 subroutines are nested

(4) functions: insert, modify, delete, program annotation, rename, field retrieval (it is better to have program retrieval

function, instruction retrieval function)

(5) support instructional programming

(6) with mechanical locking function

2.12 display mode

(1) 5.7 '' LCD display

(2) display language: Traditional Chinese

(3) graphic function: with tracing function and dynamic display of track

2.13 alarm management

(1) program instruction error alarm

(2) emergency stop alarm

(3) over range alarm (with release function)

(4) axis error alarm (driver alarm, excessive command speed, etc.)

(5) external information alarm: long tool change time, wrong parameters, incorrect operation, hydraulic alarm, etc

2.14 storage and communication

(1) processing program, parameters, cutter compensation equivalent can be restored after being lost

(2) communication: RS232 communication interface, which can transmit programs, parameters and cutter compensation with PC in both directions

2.15 input and output

(1) 24 point input (preferably 32 point input), transistor output, and the output point is connected with 0V to make the output effective. Disconnection

is invalid

(2) 16 point output. (it is better to have 24 point output), transistor signal input, and the input point is connected with 0V, which is the input with

effect. Disconnection is invalid

(3) extended i/o (optional)

2.16 external interface

(1) driver interface (x and Z axes)

(2) spindle encoder interface. The output simulation quantity and encoder feedback signal are at this interface

(3) handwheel interface

(4) input signal interface

(5) output signal interface

(6) 232 communication interface

(7) SiO expansion i/o interface

2.18 auxiliary functions (Table 1)

Table 1 m instruction table

M-code function

M00 program pause

M01 selective program pause

M02 program end

M30 program end, and return to the beginning of the program

M98 call subroutine

M99 subroutine end, Or the main program is executed repeatedly

m** the user determines the M code (PLC)

m03 spindle forward rotation

m04 spindle reverse rotation

m05 spindle stop

m08 cooling encoder rotates for 1 circle, which is equivalent to the lead screw pushing the pressure plate (or beam) The displacement equivalent to the lead screw thread distance is moved. The water is opened

M09 cooling water is closed

M10 spindle collet is loosened

M11 spindle collet is tightened

M12 tailstock in

M13 tailstock out

M15 workpiece counter +1

M16 workpiece counter is cleared

m41~m44 spindle is automatically shifted to gears 1~4

2.12 G instruction table (Table 2) table 2 g instruction table

2 outline (installation) dimension (Figure 1)

Figure 1 Outline (installation) Size

3 system standard accessories and options

3.1 standard accessories

(1) input and output board. Connection between input/output board and system

(2) if delta B servo is selected, provide system to driver, driver to motor encoder line, with a standard length of 3 meters

3.2 option

(1) Delta encoder

(2) Delta inverter

(3) Delta B servo

(4) expand the i/o board

4 conclusion

due to the complexity of research and development of machine tool numerical control system, automation engineering projects are often plagued by the lack of centralized convenience of daily design technology, and the versions shown are inconvenient for effective brief and special data, or the lack of simple and fast type selection evaluation data. This paper attempts to provide a simplified reference guide for the project research and development for the complex technical data collection. (end)

Copyright © 2011 JIN SHI