Hydraulic clamp for numerically-controlled double-sided milling machine

• Main Authors: LI QIQIANG, HONG SHAOCHUN, ZHANG XIAOCHUN, WANG BO, QIN CHAOYUE, ZHANG ZHENHAO
• Format: Patent
• Language: Chinese; English
• Published: 22.01.2019
• Subjects: COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOTDIRECTED TO A PARTICULAR RESULT; DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g.ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OFPARTICULAR DETAILS OR COMPONENTS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; TRANSPORTING

The invention discloses a hydraulic clamp for a numerically-controlled double-sided milling machine. The hydraulic clamp comprises a machine table, a rotating table is arranged on the machine table, afixed vertical column with the lower end fixed to the machine table is arranged outside one side of the rotating table, the upper end of the fixed vertical column is in rotational connection with oneend of a crossbeam, and a swing vertical column is fixed below the other end of the crossbeam. A main clamping oil cylinder is fixed to the crossbeam, a piston rod of the main clamping oil cylinder penetrates the crossbeam vertically downwards to connect with a main pressure rod. The main clamping oil cylinder comprises a high-pressure operating state for workpiece cutting and a low-pressure operating state for indexing of the rotating table. After workpiece clamping, by high and low pressure conversion of the oil cylinder, the fixed workpiece position can be constantly guaranteed, and accordingly perpendicularly in m