Pneumatic clamping device

Abstract

The invention provides a pneumatic clamping device. The pneumatic clamping device comprises a fixing plate, an air cylinder, transmission assemblies and a clamping assembly; the clamping assembly comprises a first clamping plate and a second clamping plate, the first clamping plate is fixedly connected with the output end of the air cylinder, the air cylinder drives the first clamping plate to move in the first direction, and the transmission assemblies are arranged on the two sides of the air cylinder; each transmission assembly comprises a first sliding rod, a second sliding rod and a transmission gear, the ends of the first sliding rods are fixedly connected with the first clamping plate, and the ends of the second sliding rods are fixedly connected with the second clamping plate; and the transmission gears are rotatably connected with rotation shafts fixedly arranged on the fixing plate and mesh with first racks and second racks. The first racks move to drive the transmission gearsto rotate around the rotation shafts to drive the second racks to move in the direction opposite to that of the first racks, then driving on the first clamping plate and driving on the second clamping plate are synchronously achieved, and clamping action on workpieces in the same degree-of-freedom direction is achieved.

Description

technical field [0001] The invention relates to the technical field of intelligent processing equipment, in particular to a pneumatic clamping device. Background technique [0002] In the machining process, in order to ensure the machining accuracy, the workpiece is fixed so that it occupies a certain position and the process equipment for processing or testing is the clamping device of the machine tool. [0003] With the development of science and technology and the continuous improvement of productivity, the machine tools in the existing market are generally CNC machine tools. Generally, automatic clamping devices are installed in CNC machine tools. Most of the existing automatic clamping devices are hydraulic clamping devices and pneumatic clamping devices. Two types, the pneumatic clamping device has the characteristics of lower cost compared with the hydraulic clamping device, and its market share is gradually increasing, but the existing pneumatic clamping has low work...

AI Technical Summary

Problems solved by technology

[0003] With the development of science and technology and the continuous improvement of productivity, the machine tools in the existing market are generally CNC machine tools. Generally, automatic clamping devices are installed in CNC machine tools. Most of the existing automatic clamping devices are hydraulic clamping devices and pneumatic clamping devices. Two types, the pneumatic clamping device has the characteristics of lower cost compared with the hydraulic clamping device, and its market share is gradually increasing, but the existing pneumatic clamping has low working efficiency, and only the cylinder drives the pressure plate to move to achieve single direction. Therefore, if the workpiece is clamped in any direction of freedom, at least two cylinders are needed to drive two clamping plates to realize the clamping action from two directions of the degree of freedom, which will reduce the Clamping work efficiency and increase the production cost of the clamping device

Images