Novel efficient chuck groove arc flat position machining device and machining method thereof

Abstract

The invention discloses a novel efficient chuck groove arc flat position machining device and a machining method thereof. The novel efficient chuck groove arc flat position machining device comprises a grinding machine; a tool for driving a chuck to eccentrically rotate is installed on a workbench of the grinding machine and comprises a base; a fixed ejector pin assembly and a movable ejector pin assembly which are correspondingly arranged and are adjustable in position are installed on the base; the fixed ejector pin assembly comprises a fixed ejector pin seat and a first eccentric shaft sleeve, a fixed ejector pin is installed at the front end of the first eccentric shaft sleeve, and a clamping piece used for clamping and fixing a chuck groove is fixedly installed on the fixed ejector pin; and the movable ejector pin assembly comprises a movable ejector pin seat, a second eccentric shaft sleeve is installed in the middle of the movable ejector pin seat, a movable ejector is installed at the front end of the second eccentric shaft sleeve, and the first eccentric shaft sleeve and the second eccentric shaft sleeve are synchronously driven to rotate through a rocker on one side. The device is used for machining the arc flat position of the chuck groove, programming is not needed in the whole process, tool setting is simple, machining is convenient and fast, the machining quality of the flat position groove is guaranteed, and the machining efficiency is improved.

Description

Technical field: [0001] The invention relates to the field of chuck production and processing, and mainly relates to a novel high-efficiency chuck groove circular arc flat position processing device and a processing method thereof. Background technique: [0002] The collets have elastic grooves, which rely on the taper of the collet to match the taper of the spindle of the collet. Pull back or push forward to let it lock (clamp). In the process, the natural state of the elastic groove and the clamping The state has a large shrinkage space (range), and the notch of the chuck groove hardened by heat treatment is relatively sharp. Even after a little sharp angle blunt, it is not enough to avoid long-term clamping and wear on the spindle cone surface. Moreover, the collet that has not passed through the flat position of the groove to avoid the air, its contraction and opening are not smooth, and often because of too tight fit and dirt inclusions, the entry and exit are not smoot...

AI Technical Summary

Problems solved by technology

b. Automated grinding requires high consistency of the workpiece. If the grooves of the same chuck are not uniform and not centered due to rough machining, then the automatic grinding will not actively identify it, and process according to the standard set program. The flat bits that come out must be big on one side and small on the other, but irregular

c. The flat position of CNC grinding is a process added based on the overall cylindrical grinding process. Whether it is from the local wear of the grinding wheel that will affect the overall efficiency, or from the single process of grinding the flat position, the efficiency is not obvious , so it is necessary to improve the disadvantages of the above three process methods

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