Hydraulic Control of Machine Tools

PrefaceForewordChapter I. General Description of Hydraulic Drives and Other EquipmentChapter II. Hydraulic Fluids 1. Requirements 2. Properties of Oils 3. Density and Compressibility of Hydraulic Fluids 4. Specific Weight 5. ViscosityChapter III. Calculation of Hydraulic Systems 1. Special Points to be Noted in the Calculation of Hydraulic Systems 2. Hydraulic Losses 3. Leakage 4. Analogy Between Hydraulical and Electrical Calculations 5. Chart for the Cedculation of Pressure Losses and Operating Conditions of Hydraulic Systems 6. Calculation of Pressure Exerted by the Flow 7. Changes in the Volume of Hydraulic Systems, Hydraulic Hammer, and the Safe Starting and Stopping Speed 8. The Speed of Action and the Stroke of Hydraulic Mechanisms 9. Graphical and Analytical Calculation of Accelerations, Velocities, Displacements, and the Time of Action of Hydraulic Devices 10. The Calculation of Hydraulic Transient Processes for Rotary and Rectilinear Motions Produced by Rotary-Type Hydraulic Motors 11. Buffers and the Braking of Speed 12. Thermodynamic Calculation of the Hydraulic SystemChapter IV. Hydraulic Circuits of Machine Tools 1. Circuits with One Pump and One Motor 2. Hydraulic Systems with Several Pumps and One Motor or with One Pump and Several Motors 3. Circuits with Several Motors for Parallel or Series Operation of Several Mechanisms 4. Circuits with a Vertical Cylinder and PistonChapter V. Pneumo-Hydraulic and Hydro-Electric-Mechanical Devices 1. Pneumo-Hydraulic Devices 2. Hydromechanical and Electro-Hydraulic-Mechanical SystemsChapter VI. Hydraulic Drives 1. Straight-Line Piston Pumps 2. Pistons and Plungers 3. The Calculation of Capacity, Pressures, Velocity, Power, and Efficiency for a Cylinder with Piston or Plunger 4. The Design of Pistons and Plungers 5. Rotary Hydraulic Pumps and Motors (Gear, Screw, and Vane Types) 6. Rotary Piston Pumps and Motors 7. Design and Calculation of Rotary Pumps and Motors 8. Calculation of Gear Pumps 9. The Selection of Tooth Profile and the Design of Gear Pumps and Motors 10. Kinematics of Vane and Piston-Type Hydraulic Drives 11. The Delivery of Vane and Piston Machines and the Uniformity of their Discharge 12. Calculation of Force and Power 13. The Elimination of Compression and the Balancing of Pressures in Vane and Piston Pimaps and Motors 14. Automatic Regulation of Hydraulic Pumps and Motors. Performance of Pump-Motor Units 15. Performance of Pumps and MotorsChapter VII. Regulation and Oil Distribution Mechanisms 1. Oil Distribution and Devices 2. Relief and Pressure Control Valves 3. Non-Return and Back Pressure Valves, Controlled Valves 4. Differential Valves 5. Sequence Valves 6. Unloading Valves 7. Control Valves for a Two-Stage Pump 8. Obtaining the Required Motions with Automatic Control of the Pressure Ratio and Back Pressure 9. Pressure Reducing Valves 10. Intensifiers 11. Valves for Acceleration and Deceleration of Motion 12. Mechanisms for the Directional Control of Motion 13. Speed Control 14. Obtaining Uniform Speeds and Programme Control of Motion by Means of Variable Delivery Pumps 15. Hydraulic Mechanisms for Remote Control 16. Timing DevicesChapter VIII. Auxiliary Equipment of Hydraulic Systems 1. Accumulators of Fluid and Power 2. Devices for Cleaning the Oil 3. Hydraulic Seals 4. Control Panels 5. Oil Piping: Its Joints and Pipes 6. SpringsChapter IX. Hydraulic Position Control Mechanisms 1. Automatic Control 2. Follow-Up Mechanisms 3. Mechanisms of Hydraulic Single-Dimensional Copying Devices 4. Single-Dimensional Copying Systems with Automatic Variation of Feed 5. Two-Dimensional Copying Systems 6. Valves and Styli of Follow-Up Systems 7. Analysis of Follow-Up Mechanisms 8. Calculation and Characteristics of Follow-Up Hydraulic Systems 9. Dynamics of Hydraulic Follow-Up Systems 10. The Setting-Up and Analysis of Linearized Differential Equations of Hydraulic Systems 11. Oscillations and Stability of the Copying Motion 12. Investigation of Hydraulic Copying SystemsChapter X. Application Examples of Hydraulic Drives and Hydraulic Automation Equipment in Machine Tdols 1. Automatic Hydraulic Machine Tools 2. Hydrauhc General-Purpose Machine ToolsChapter XI. Examples of Hydraulic CalculationsAppendixBibliographyIndex