Wikipedia: stone carving machine working principle

at present, the stone carving machine has been woven into the from all walks of life of the stone industry. It is convenient and quick, high efficiency, it is now an integral machine processing means of stone enterprises. So what is the principle of stone carving machine? If the job is he? , here we make a brief introduction.
stone carving machine on the market at present have a high school low-grade various price, take the drive, has a domestic and imported, imported quality is better, but the price must be more expensive, the stone carving machine drives what is to be used? We from its connection mode and work to understand the principle. Stepper motor is the electrical pulses into angular displacement actuator open-loop control components. Under normal circumstances stop position of the motor depends on the pulse signal frequency and pulse number, stepper drives are used to control the step motor running controller. From another Angle is to give the motor a pulse signal, motor is turned a step Angle. Drive is to segment the stepping Angle such as to the motor a pulse, motor rotation. Degrees, if use drive to segment, so a pulse to stone motor, the motor will turn. Degrees. That is to say, motor rotation of Min unit is smaller.
stone carving drives the specific meaning of each pin
pin signal connection
GND ground of switch power supply switch power V

V A
A - A motor Motor is A -

B B B motor - B -
pin signal connection

P - P pulse control signal

D - D direction control signal
E impending
P port connection:
PUL electric pulse signal. Step motor rotation, stop, speed control and stop bit high level direction signal inversion DIR. Control of stepping motor rotation direction. Low level forward. Drive under the condition of charged, ENA enable signal. When the high electricity at ordinary times. Motor is not charged, can be arbitrary rotation by hand, is generally used in maintenance and anti-collision.

some of the servo motor used in stone carving, so what is the difference between step motor and servo motor? Below contrast



stepper motor system servo motor system



torque range

(small torque Generally under Nm)

the cuhk, the full range of


speed range

low ( Generally under RPM, big torque motor is less than the RPM)

high ( Up to the RPM) , more accessible to the dc servo motor RPM



control of

mainly position control
diversified intelligent control mode, position/speed/torque mode


smooth

when low speed vibration ( But with subdivision drive type can be obviously improved)

good, smooth operation,


accuracy

generally lower, the segmentation model driven higher

high ( Depending on the resolution of the feedback device)

the torque-speed characteristic in


high speed, torque fell faster

good moment characteristics, features a hard



overload characteristics will out-of-step

overload
can ~ times overload ( A short time)


feedback way

most for open loop control, also can answer the encoder, avoid out-of-step

closed loop way, encoder feedback


encoder type

-

type photoelectric rotary encoder, The incremental type/value type) Type, rotating transformer


response speed


general fast



resistance to vibration

good

general ( Rotating transformer can be resistant to vibration) The temperature rise of the




high running temperature

general



maintainability basic can free maintenance


good


prices


low high









in total, servo motor is higher than precision stepper motor speed faster, the price also higher than stepper motor, a penny a points goods, according to their own products, choose suitable machine.