Four-jaw chuck
A four-jaw chuck and block technology, applied in the direction of the chuck, can solve the problems of manual centering, small diameter range, time-consuming and labor-intensive, etc., and achieve the effect of improving friction, firmly clamping the workpiece, and preventing damage.
Active Publication Date: 2020-07-28
台州市利秀泵业有限公司
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Problems solved by technology
[0005] In order to make up for the deficiencies in the prior art, the present invention proposes a four-jaw chuck. The present invention is mainly used to solve the problem that the diameter range of the workpiece to be clamped is slightly smaller when the workpiece is clamped by the four-jaw chuck. Different chucks need to be replaced when the workpiece is processed, which not only takes time and effort, but also reduces the processing efficiency of the machine tool. At the same time, the four-jaw single-action chuck in the prior art has no automatic centering function, so manual positioning is required. heart problem
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[0026] As an embodiment of the present invention, the upper surface of the rotating plate 13 is rotatably connected with an auxiliary plate 194 through a rotating shaft; the upper surface of the auxiliary plate 194 is hinged with uniformly arranged support rods 195; The inner wall is provided with a second long groove 23; each of the second long grooves 23 is filled with a rubber layer 24; the opposite side of each of the rubber layers 24 is fixed with evenly arranged short rods 25, And the short rods 25 all extend out of the design of the first block 2; each of the support rods 195 stretches into the rubber layer 24; during work, when the rotating plate 13 drives the first block 2 to move inward, due to the rotating plate The upper surface of 13 is connected with an auxiliary plate 194 through the rotation of the rotating shaft, which can prevent the auxiliary plate 194 from rotating during the rotation of the rotating plate 13. When the first block 2 moves inward, the hinged ...
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The invention belongs to the technical field of chucks, and particularly relates to a four-jaw chuck. The four-jaw chuck comprises a chuck body, first clamping blocks and second clamping blocks, wherein a circular groove is formed in the inner wall of the chuck body in the center line position of the chuck body, a rotating plate is rotatably connected below each first clamping block through a rotating shaft, the outer surface of the rotating plate is fixedly connected with gear teeth which are uniformly arranged, first bevel gears which are uniformly arranged are rotatably connected to one sides, opposite to the gear teeth, at the bottom of the circular groove through rotating shafts, the first bevel gears are rotatably connected with second bevel gears through the rotating shafts, rotating blocks are fixedly connected to the reverse sides of the second bevel gears, and first through holes are formed in one sides, opposite to the rotating blocks. The four-jaw chuck solves the problemsthat the clamped workpiece diameter range is small when clamping workpieces by the four-jaw chuck, and time and energy are wasted and the machining efficiency of the machine tool is reduced due to thefact that different chucks need to be changed when different workpieces are machined by a machine tool.
Description
technical field [0001] The invention belongs to the technical field of chucks, in particular to a four-jaw chuck. Background technique [0002] A chuck is a mechanical device used to clamp a workpiece on a machine tool. A machine tool accessory that clamps and positions workpieces by using the radial movement of movable jaws evenly distributed on the chuck body. The chuck is generally composed of three parts: the chuck body, the movable jaw and the jaw driving mechanism. The minimum diameter of the chuck body is 65mm, and the maximum can reach 1500mm. There is a through hole in the center to pass the workpiece or bar; the back has a cylindrical or short tapered structure, which is connected directly or through the flange to the end of the machine tool spindle. . Chucks are usually installed on lathes, cylindrical grinders and internal grinders, and can also be used with various indexing devices for milling machines and drilling machines. From the number of chuck jaws, it...
Claims
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Login to View More IPC IPC(8): B23B31/10B23B31/16
CPCB23B31/102B23B31/16054
Inventor 吴明伟王敏侠孙勇
Owner 台州市利秀泵业有限公司