Swing jaw chuck
A claw-type chuck and chuck technology, applied in the direction of the chuck, can solve the problems of falling, not very ideal, etc., and achieve the effect of convenient adjustment and simple structure
Active Publication Date: 2016-09-21
山东济清科技服务有限公司
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Problems solved by technology
Due to the different mechanisms of the two, the clamping range of the workpiece is also different. The clamping range of the manual chuck is generally from a few millimeters to several hundred millimeters, which is a large range; while the automatic chuck is only a few millimeters to a dozen millimeters, the maximum To tens of millimeters, the range is very small; in order to solve this contradiction, most of the automatic chucks are equipped with movable jaws, and the range of clamping workpieces can be expanded by replacing the movable jaws. However, this method is not very ideal.
[0003] With the rapid development of numerical control technology, the spindle speed of machine tools is getting higher and higher. Due to the centrifugal force of the chuck jaws, when the speed of the chuck increases, the clamping force of the chuck will decrease. The clamping force of the chuck will drop sharply, which is a fatal flaw for automatic chucks.
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[0024] exist Figure 1 to Figure 5 Among them, the chuck is connected with the machine tool (29), the chuck seat (5) is connected with the chuck body (14) through the B screw (17), and a chuck is formed between the chuck seat (5) and the chuck body (14). Disc abdominal cavity, the chuck has at least two claws (11); the front part of the claw (11) is called the claw finger, which hangs in front of the chuck body (14), and the rear part of the claw (11) is called The claw body is embedded in the hole of the chuck body (14). The claw body is a cylindrical structure. The claw body is fixedly connected with the rocker arm (8) in the abdominal cavity of the chuck. The top pin (15) is arranged, and the B spring (16) is housed in the top pin (15). The inside of the rocking arm (8) is a slope, and the slope inside the rocking arm (8) coincides with the slope of the wedge (18). The number of slopes of the block (18) is the same as the number of the rocker arm (8) and the claw (11), the...
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A swing-jaw type chuck, which clamps the workpiece by means of swinging jaws. The clamping range of the jaws is convenient to adjust. When the jaws clamp the workpiece, the centrifugal force generated by the jaws is smaller than that generated by the rocker arm. In this state, the clamping force of the chuck can be increased instead; in addition, this chuck also has multiple functions such as claw telescopic, center-mounted center, etc.
Description
technical field [0001] The invention relates to the field of machine tools, in particular to the chucks of ordinary machine tools and numerically controlled machine tools. Background technique [0002] Chucks are the main fixtures for ordinary machine tools and CNC machine tools to clamp workpieces, especially lathes. According to statistics, more than 90% of the parts on lathes are clamped by chucks; currently used chucks are mainly classified according to power. Two forms: manual chuck and automatic chuck, manual chuck is generally configured on ordinary machine tools, automatic chuck is configured on CNC machine tools; manual chuck and automatic chuck are completely different in structure, manual chuck is manually rotated T-shaped wrench, and then turn the helical end toothed plate in the chuck body, the helical end toothed plate drives the jaws, so that the jaws slide centripetally or centrifugally, thereby clamping or loosening the workpiece; automatic chucks usually us...
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IPC IPC(8): B23B31/14
CPCB23B31/14
Inventor 党金行
Owner 山东济清科技服务有限公司