Replacement tool for three-jaw flexible chuck on numerical control machine tool and working method of replacement tool

Abstract

The invention discloses a replacement tool for a three-jaw flexible chuck on a numerical control machine tool and a working method of the replacement tool. A pull rod is connected with a connecting rod through second straight pins, the connecting rod is connected with a swing rod through first straight pins, the swing rod is connected with a main body through fourth straight pins, through holes are formed in the swing rods, third straight pins are installed in the through holes, handle rods are connected with a handle seat, an auxiliary handle rod fixing hole is formed in the main body, an auxiliary handle rod is fixedly connected in the auxiliary handle rod fixing hole, a spring placing groove is formed in the main body, a spring is placed in the spring placing groove, a bearing is arranged above the spring, and the handle seat penetrates through the bearing and the spring and is in threaded connection with the pull rod. After the structure is adopted, the longer handle rods are arranged, so that the arm of force is longer, more labor is saved during use, the auxiliary handle rod is additionally arranged, when the tool is used, the auxiliary handle rod can be held by one hand, the handle rods are rotated by the other hand, and a very good positioning function is achieved.

Description

technical field [0001] The invention relates to the technical field of numerical control machine tools, in particular to a replacement tool for a three-jaw flexible chuck on a numerical control machine tool and a working method thereof. Background technique [0002] CNC machine tools are important basic equipment in today's industry, and are the means of production for various pillar industries such as automobiles, aerospace, molds, and electronics. In the production process, there are many types of products to be processed. For the processing of some products, it is necessary to choose a three-jaw flexible chuck to clamp the workpiece for processing. The flexible chuck has a certain service life and requires regular maintenance and replacement. The provided tool uses a round handle, which is easy to slip and cannot bear force when used. Due to the short arm, it is difficult to use and difficult to operate. Contents of the invention [0003] In order to overcome the above...

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Problems solved by technology

[0003] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a replacement tool for a three-jaw flexible collet on a CNC machine tool and its working method, which prolongs the length of each handle bar, and adopts an elongated handle bar to make the moment arm more Longer, more labor-saving when using; at the same time, an additional auxiliary handle bar is added to the main body. When using this tool, you can hold the auxiliary handle bar with one hand and rotate the handle bar with the other hand, which can play a good positioning function. Simpler and more convenient; the auxiliary handle rod is installed at the fixing hole of the auxiliary handle rod, as an auxiliary force point, it can play the role of positioning and auxiliary support during the rotation process, and it is not easy to slip when encountering oil stains, forming a double guarantee. The operation is easier; the bearing groove is added to place the bearing, and the frictional resistance is reduced during the rotation, which will save effort in use; the spring is placed in the spring placement groove in the main body, placed under the bearing, for loosening When the collet is used, the reaction force is provided to loosen the tool; the evenly distributed design of the three handle rods can effectively reduce the slippage caused by the problem of oil pollution; by turning the handle rod to the right, the swing rod is subjected to tension and drives the direct pin on the swing rod Three-clamping chuck, left-handed handle lever, the swing rod is pushed, the chuck is released, and the release is easier under the reaction force of the spring

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