Hydraulics and Pneumatics: Unit V: Trouble Shooting and Applications
Hydraulic circuits for industrial applications
design of hydraulic circuit for a drilling machine
As we know many machine tool applications (such as drilling machine application) require faster extension of the cylinder (say, faster extension of drill spindle).
HYDRAULIC CIRCUITS FOR INDUSTRIAL APPLICATIONS (REGENERATIVE CYLINDER CIRCUIT FOR MACHINE TOOL APPLICATIONS) (HYDRAULIC CIRCUIT FOR QUICK-RETURN MOTION IN MACHINE TOOLS) 1. Functional and Operational Requirements As we know many machine tool applications (such as drilling machine application) require faster extension of the cylinder (say, faster extension of drill spindle). This can be achieved by making rapid extension of the cylinder by regeneration. 2. Circuit Fig.16.1 illustrates a circuit that can be used to produce a rapid extension of the cylinder (drill spindle) in a drilling machine application. This circuit uses a 4/3 DC valve (open centered position) and a double acting cylinder. 3. Operation Left mode position: When the 4/3 DC valve is shifted to the left envelope flow path configuration, the cylinder extends in the same manner as that of a regular double-acting cylinder. Right mode position: When the 4/3 DC valve is shifted to the right envelope flow path configuration, the cylinder retracts in the same manner as that of a regular double-acting cylinder. Spring-centered position: When the 4/3 DC valve is shifted to the spring centered position, the oil from the rod end regenerates with the pump flow entering to the blank end. This effectively increases pump flow to the blank end of the cylinder. Thus the spring- centered position gives rapid extension of the cylinder (drill spindle).DESIGN OF HYDRAULIC CIRCUIT FOR A DRILLING MACHINE
Hydraulics and Pneumatics: Unit V: Trouble Shooting and Applications : Tag: : design of hydraulic circuit for a drilling machine - Hydraulic circuits for industrial applications
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Hydraulics and Pneumatics
ME3492 4th semester Mechanical Dept | 2021 Regulation | 4th Semester Mechanical Dept 2021 Regulation