An auxiliary control device for a numerically controlled machine tool

Abstract

The invention relates to the technical field of numerical control machine tools, and discloses an auxiliary control device for numerical control machine tools, including a chuck body, an outer clamping block is movably connected to the right side of the chuck body, and the left side of the chuck body is movable An adjusting nut is connected, a fixed shaft is fixedly installed on the bottom surface of the outer clamping block, and a roller is movably connected to the bottom end of the fixed shaft, and a positioning groove is provided at the left end of the roller. The auxiliary control device of the CNC machine tool pushes the movable plate to the right side of the chuck body through the rack. At this time, the inner clamping block is located below the outer clamping block, and the threaded rod is rotated so that the threaded rod pushes the top cone to the right. The cone moves to the right, pushes the three inner clamps to the outside, and at the same time turns the adjusting nut to move the three outer clamps inward, clamps the inner and outer sides of the pipe parts at the same time, and avoids when the pipe parts are clamped. Concave inward to avoid damage to the device, and can accurately clamp pipe parts.

Description

technical field [0001] The invention relates to the technical field of numerical control machine tools, in particular to an auxiliary control device for numerical control machine tools. Background technique [0002] CNC machine tools, namely computer numerical control lathes, are the most widely used and widely covered CNC machine tools in China. CNC machine tools are mechatronic products integrating machinery, electrical, hydraulic, pneumatic, microelectronics and information technologies. , and the chuck is a mechanical device used to clamp the workpiece on the machine tool. [0003] Most of the existing chucks use the outer three jaws to clamp the outer surface of the shaft workpiece, but when clamping the pipe workpiece, when the outer three jaws move inward to clamp the pipe, there may be If the clamping force is too large and the pipe workpiece is sunken inward, it may cause damage to the pipe workpiece, and the pipe workpiece cannot be clamped accurately. [0004] E...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing chucks use the outer three jaws to clamp the outer surface of the shaft workpiece, but when clamping the pipe workpiece, when the outer three jaws move inward to clamp the pipe, there may be If the clamping force is too large, the pipe workpiece will be sunken inward, which may cause damage to the pipe workpiece, and the pipe workpiece cannot be clamped accurately

[0004] Existing CNC machine tools mostly process the parts by moving the tool after the parts are processed, but when the parts are long, in order to ensure the clamping effect of the parts, the length value of the fixed end of the part to penetrate the chuck is usually increased to To ensure the stability of parts during processing, but the length of the tool moving to the limit position on the side of the chuck is certain. When processing parts, it is necessary to stop the CNC machine tool as a whole before adjusting the length of the parts deep into the chuck. Restart after stopping A large amount of electric energy will be consumed in the process, which increases the processing cost of CNC machine tools

[0005] When the existing chuck changes the state or position of the part, most of the parts need to be loosened and then moved. However, after the loosened part is fixed and clamped again, the position of the axis of the part may be different from that in the previous processing state. The position of the axis is shifted, which may reduce the machining accuracy of the part when the part is continued to be processed, and reduce the processing effect of the CNC machine tool

Images