Pressurizing cylinder and clamp device applying same

Abstract

The invention discloses a pressure cylinder. The pressure cylinder comprises a cylinder body, a first piston component and a second piston component; the first piston component comprises a first rod part, a first piston part and a piston hole, and the lower end part of the first rod part and the first piston part are connected with the cylinder body in a sealing and sliding fit manner; the secondpiston component comprises a second rod part and a second piston part, the second piston part is connected into the piston hole in a sealing and sliding fit mode, and the second rod part is connectedwith the cylinder body in a sealing and sliding fit mode; and a pressurizing conical surface is arranged at the lower end of the second rod part, a pressurizing ball is embedded in the cylinder body,and a pressure conical surface is arranged at the upper end of the piston hole, so that the pressure conical surface abuts against the pressurizing ball and drives the pressurizing ball to move towards the second rod part, and then the second piston part is driven to move upwards. According to the pressure cylinder, the output thrust can be greatly improved, then the clamping force for clamping aworkpiece is improved, the structure is compact, the size is small, and the space can be saved.

Description

technical field [0001] The invention relates to a booster cylinder and a clamp device using the same. Background technique [0002] At present, industrial robots usually need to use fixtures to grab and carry workpieces in practical applications. Due to the limited space in industrial robots, compact pneumatic fixtures are widely used. The principle is to output thrust through the cylinders in the fixtures. To realize the clamping of the workpiece. However, the compressed air used by the cylinder has a certain degree of compressibility, and the pressure of the compressed air is generally below 6bar, which causes the output thrust of the cylinder to be unstable and the thrust is too small, which in turn makes the clamping force of the clamping device too small to be For clamping workpieces with heavy loads. In order to obtain a larger clamping force, some designers use double-force cylinders, but this leads to a larger volume of the fixture device, which takes up more space...

AI Technical Summary

Problems solved by technology

However, the compressed air used by the cylinder has a certain degree of compressibility, and the pressure of the compressed air is generally below 6bar, which causes the output thrust of the cylinder to be unstable and the thrust is too small, which in turn makes the clamping force of the clamping device too small to be Clamping of highly loaded workpieces

In order to obtain a larger clamping force, some designers use double-force cylinders, but this leads to a larger volume of the fixture device, which takes up more space, and the clamping force is only doubled, which still cannot meet the needs of use.

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