|distance between centres||2700(106″)|
|Power of workpiece motor||kw||18.5|
|Power of grinding-wheel motor||kw||18.5|
|Machine weight of 3 meters||kg||15100|
|Add weight per meter||kg||1200|
|Machine outine size of 3 meters||Length X width X height||9300x3300x2000|
Large-scale CNC oilfield tool grinder is a large-scale CNC oilfield tool grinder product developed for oilfield tools. It has the characteristics of generalization, high degree of modularization, high rigidity, high efficiency and high adaptability. The key outsourcing parts are all imported famous brand products. The numerical control system adopts the original FANUC 0i-MD numerical control system of 08 FANUC company, which has very powerful control functions and extremely high stability and advancement, and can complete various controls of the machine tool.
The MKY13110 oilfield tool grinder adopts an integral layout, and the centralized arrangement of moving mechanisms and workpieces can not only recover the coolant, but also make the operation pleasant. The upper part of the linear guide rail is equipped with a traveling protection device, which can protect the guide rail safely and reliably, and has the advantages of good environmental performance. The MKY13110 oilfield tool grinder is used in the oilfield and tool industry. It can complete the grinding of cutting tools such as oilfield pipelines, spiral stabilizers, long shafts, reamers, precision turning tools, drill bits, etc.
The machine tool adopts an integral layout structure, and the structure design of the bed adopts the latest well-shaped structure, which fully considers the deformation factors caused after the load. In order to ensure the geometric accuracy of the bed, the bed is designed with the finite element method and the rib layout Reasonable, high-grade and high-quality gray cast iron is selected as the material, which has high rigidity and stability.
The headstock is driven by an AC variable frequency motor, which has the characteristics of large starting torque and good low-speed performance. At the same time, the AC variable frequency motor can adjust the speed economically and smoothly, so that the work-piece speed can be steplessly adjusted within the set range. It can be equipped with dual chucks at the same time to realize the installation of special parts. Through the synchronous belt transmission, the impact of vibration on the grinding accuracy can be effectively reduced. The belt adjustment is equipped with a tensioning device, which can easily adjust the tension of the belt. The headstock has a wide variable speed range, high carrying capacity, high precision and good precision retention.
The tail stock is composed of upper and lower bodies, and the double-layer tail stock is convenient for adjusting the accuracy of the two centers in the horizontal direction. The longitudinal movement of the entire tail stock body along the work piece bed is driven by manual and grinding wheel heads. The tail stock spindle center and head-stock spindle center have good accuracy over the full length of the tail stock movement. The upper body of the tail stock is equipped with a sleeve, a precision movable center, and a quick and slow movement mechanism of the sleeve; the machine tool tail-stock sleeve has a taper hole No. 5. The tail stock of this machine tool has the characteristics of high precision, strong carrying capacity, long maintenance period and reliable work.
The wheel head is one of the core components of the grinding machine, and its rotation accuracy and smooth movement directly affect the grinding quality of the work-piece surface. Our company’s grinding wheel stands draw on the strengths of others, and have introduced and absorbed foreign advanced manufacturing technology. Therefore, our roll grinders, axle grinders and the grinding wheel stands of this grinder have reached the domestic advanced level and are close to the international advanced level. . The spindle of the grinding head adopts six-cavity dynamic and static pressure bearing, which has the characteristics of high rigidity and high precision. The grinding wheel chuck adopts a concave flange structure to avoid the deflection and deformation of the spindle during strong grinding, which affects the surface quality of the work piece, and can effectively eliminate the spiral pattern. The rotation accuracy of the grinding wheel is well guaranteed to ensure the high precision and high quality of the work piece to be ground. The horizontal movement (X axis) of the grinding wheel carriage is completed by the AC digital servo motor driving the ball screw, which can realize the grinding of cylindrical, conical and arbitrary curved roll surfaces, as well as rapid movement, continuous lateral feed and periodic feed.
5、Horizontal feed system
The horizontal movement (X axis) of the grinding wheel carriage is completed by the AC digital servo motor driving the ball screw, which can realize cylindrical grinding and rapid movement, continuous lateral feed and periodic feed, etc.
The horizontal guide rail of the grinding wheel holder is a rolling motion method of a linear guide rail, and the friction coefficient is particularly small, and there will be no idling slip during micro-feeding, and the feeding accuracy can be guaranteed for a long time. The lateral feed is driven by an AC servo motor via a ball screw, with high feed sensitivity and stable operation.
6、Longitudinal feeding device
The longitudinal movement (Z axis) of the grinding wheel carriage is completed by the AC digital servo motor driving the ball screw, which can realize cylindrical grinding and rapid movement, continuous lateral feed and periodic feed.
The longitudinal guide rail of the grinding wheel holder is a rolling motion method of a linear guide rail. The friction coefficient is particularly small. There will be no idling and slipping phenomenon during micro-feeding, and the feeding accuracy can be guaranteed for a long time. Longitudinal feed is driven by AC servo motor through deceleration and ball screw, with high feed sensitivity and stable operation.
The CNC system adopts FANUC 0i-TD system. The operation panel integrates various numerical control components such as CNC, PLC and HMI. 10.4″ TFT true color LCD display, using CF card and USB interface, can carry out fast program execution or data reading and writing; PLC ladder diagram display, multi-level jump, fixed cycle for grinder, continuous dressing, horizontal grinding control; High-precision oscillating grinding, handwheel interruption function, data protection function, misoperation prevention function, general return function to protect the grinding wheel and workpiece; Chinese/English parameter switch display.
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