Coaxial large strided distance ear base hole boring auxiliary device and boring process method
A large-span, lug seat technology, which is applied in metal processing equipment, manufacturing tools, boring/drilling, etc., can solve the problems of large assembly workload, large fit clearance, and low work efficiency, and achieve high assembly accuracy, The effect of small fit clearance and improved installation work efficiency
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[0018] The present invention will be further described below by taking the machining of the coaxial large-span lug hole boring pin on the base of the heavy-duty skid-mounted drilling rig as an example, in conjunction with the accompanying drawings.
[0019] figure 1 , figure 2 It is a structural diagram of the foundation seat of a heavy-duty skid-mounted drilling rig. The foundation seat is about 13 meters long and 2.2 meters wide. The drill floor is free to rotate and lift with respect to the base. There is a high coaxiality requirement between a set of coaxial lug holes, and there are requirements for center distance and parallelism between the centerlines of each set of lug holes with parallel axes. Require. The following takes the boring pin processing of a group of lug holes 1a, 1b, 1c, and 1d coaxial on the left side as an example to illustrate the structure of the auxiliary device of the present invention and the application of this auxiliary device for coaxial large...
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