Automatic mechanical clamp device and clamping method

Abstract

The invention relates to the field of mechanical clamps, and discloses an automatic mechanical clamp device and a clamping method. The automatic mechanical clamp device comprises a supporting rod. A sliding block with a guide rod is mounted on the supporting rod. Two clamp pieces with clamping force adjusting mechanisms are mounted on the guide rod. Each clamping force adjusting mechanism comprises multiple hydraulic cylinders with pistons. An electric conduction coil is wound around the barrel wall of each hydraulic cylinder. A pressure sensor is arranged at the free end of each piston. A relay control board is arranged on each electric conduction coil. Each replay control board is electrically connected with the corresponding pressure sensor. Liquid media of the hydraulic cylinders are magnetorheological fluid. According to the automatic mechanical clamp device, when clamping force reaches a threshold value set by the replay control boards, the replay control boards achieve circuit breakover of the electric conduction coils, a magnetic field is applied to the magnetorheological fluid, the magnetorheological fluid is converted into high viscosity and a low flowing state from a flowing state, and therefore the clamping force is stable; and clamped objects can be clamped and moved, and meanwhile the problem that too large clamping force is applied, and consequently the clamped objects are damaged can be avoided.

Description

Technical field

[0001] The invention relates to the field of mechanical clamps, in particular to an automated mechanical clamp device and a clamping method. Background technique

[0002] Manipulator is a kind of manipulator that can imitate certain movements and functions of human hands and arms. At present, due to the increase in production requirements of enterprises, the requirements for equipment performance have also increased, and production capacity has increased substantially. In this case, one of the effective ways to improve production capacity is to use a large number of manipulators, especially widely used in assembly line production. The use of manipulators to assist production is to improve efficiency and reduce errors; the other is to increase efficiency and reduce costs, so as to coordinate with production capacity.

[0003] The existing manipulators mainly use mechanical clamps to grasp and transport the clamped objects, and move the clamped objects to the design...

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