Research On Processing Technology Of Drill Winch Slotted Drum And Development Of NC Program

Through analysis and research, master the processing status and development trend ofdomestic drilling rig draw works drum of slotted, rig draw works drum structure existing areanalyzed, the advantages and disadvantages about processing overall slotted cylinder, laidthe foundation for the development of new technology of grooved drum and NC program.The structural characteristics of the JC90DB winch slotted drum, with HT200heavymachine tool Siemens840D CNC system as an example, design and development of thedrum groove technology and NC program. Solid state space according to the complextrajectory slotted cylinder characteristic, using the existing machine tools to complete in thethree-dimensional space coordinates of the trajectory in the two-dimensional planecoordinates.In this paper, the guiding ideology one forming path, for the program in the absence ofprecedent cases groping forward, constantly test, calculated by a plurality of formula feed.Functional control system based on HT200CNC heavy lathe machining peculiarcharacteristics and Siemens840D is adopted to control the cutting angle, feed, according tothe rope groove radius, calculated X, Z axis feed. With constant pitch cutting programinstructions G33control feed initial angle, ensure that every feed point slotted drum trackprocessing. The spiral section to the line segment, and then into the spiral section to the linesegment, the entire range of360DEG, only one program origin, each ring of the screwthread starting point coordinates are in the same line, therefore, thread start coordinates.Calculated parameters of each inflection point value by the formula, precision roller slotutilization program spiral section to the line, change the straight segment to helical segment.In this paper, based on the device characteristics and grooving roller structure characteristics,development of fixed loop subroutines and parameter list, hierarchical processing, arctransition, greatly optimizing the each blade depth, at the same time, improve productionefficiency, the list of parameters self limiting tool trajectory used in key inflection pointposition, to ensure accuracy, and tool life. Greatly extended, which contributed to theenterprise energy saving.