With the rapid development of science and technology and the needs of large-scale industrial production, using special equipment assembled into modern high-speed lines and multifunctional and efficient combination machine tools, in many industries has become guarantee the accuracy of product, reduce the production cost, improve labor productivity, and one of the key measures of enterprise competitiveness. Power head is an important power of modular machine tool parts, their quality and performance of the stand or fall of quality directly affects the whole machine tools performance.
Gas-electric power head automatic feed drilling power head by the main motion and feed motion and control system of three parts.
(1) the main movement gas-electric automatic feed drilling head of the main movement driven by three-phase asynchronous motor, the synchronous cog belt and spline shaft of the motor torque is transmitted to the spindle, the spindle speed can be change by different synchronous cog belt wheel. Due to the main movement driven by motor power head, spindle speed characteristics, power output and torque is big, can adapt the multi-axis drilling and large aperture processing conditions.
(2) feed movement Because of pneumatic transmission has quick response, good adaptability to the environment, some advantages such as simple structure, small volume, and can realize stepless speed regulation, long working life, convenient power source, therefore, head of the feed movement using compressed air as power source. Considering the compressibility of air, when the load changes of power head movement is poorer, the workers into the speed adjustment and control of the hydraulic damper is used to realize, power head fast rewind and fast forward with the exhaust valve to adjust.
(3) the gas-electric automatic control system for gas-electric drilling power head feed movement using the compressed air as power source, its feed movement control also USES the pneumatic control system, by a two to five ventilation control valve, a motorized valve, two manual valve, a number of throttle valve and two external control air supply port, compact structure, with functions of manual operation and remote control and in situ, before a signal and reset signal protection function. Power head and worker cheng cheng can quickly through the block iron continuous adjustable.
Gas-electric automatic feed drilling power head is a collection of power head of main motion and feed movement and control equipment in the integration of drilling power head, in order to realize its appearance is compact, the power head adopts shaft embedded cylinder structure, spindle and piston rod, piston rod is hollow. Containing imported rolling bearing, in order to improve the rotation accuracy of the spindle, the spindle is installed on the bearing, the synchronous belt by spline connected to the motor, cylinder block is fixed on the bracket, mounted on the piston rod hydraulic governor and stroke adjustment screw, through adjusting screw collision limit switch, reset to realize power head spindle.
TAG: Gas-electric power head structure characteristics, Gas-electric power head composition, Gas-electric power head working principle, Gas-electric power head characteristics