Adjustable automatic centering core shaft
An automatic centering and adjustable technology, which is applied in the field of mechanical processing tooling and adjustable automatic centering mandrel, can solve the problems of poor centering accuracy of the mandrel, high equipment manufacturing cost, troublesome use, etc., and achieve high centering accuracy , Large clamping force, easy to use
Inactive Publication Date: 2013-02-27
SUZHOU BLUE KING MACHINE TOOL TECH CO LTD
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Problems solved by technology
[0002] In the process of mechanical processing, in order to process round tube workpieces, it is generally necessary to install and fix a mandrel at the central axis of the round tube workpiece. The existing mandrels are generally fixed in structure and cannot The diameter of the inner hole is adjusted accordingly, resulting in many specifications and models. Not only the manufacturing cost of the equipment is high, the use is troublesome, but also it is not conducive to management; although there are some adjustable mandrels in the existing technology, but this type Adjustable mandrels generally have a small adjustment range, so there are still defects such as many specifications, high manufacturing costs, troublesome use, and unfavorable management. In addition, such mandrels generally have poor centering accuracy, Not suitable for defects in larger diameter workpieces
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[0008] An adjustable self-centering mandrel according to the present invention, which includes a central shaft (1), a spacer (2), a compression nut (3), a washer (4), a bowl-shaped spring (5), an adjustable Gripper (6), slider (7), guide rail (8), guide rail seat (9), key (10), two guide rail seats (9) are symmetrically installed and fixed on the central axis (1) through the key (10) Set and install a spacer (2) on the central axis (1) between the two guide rail seats (9), and set three guide rails (8) along the radial direction on the outer surface of each guide rail seat (9) ), the included angle between each guide rail (8) is equal, a slider (7) is installed on each guide rail (8), and a slider (7) is installed and fixed on each slider (7) by bolts There are only adjustable jaws (6), and a bowl-shaped spring (5) is installed at both ends of the central axis (1), and the mouth of the bowl-shaped spring (5) is clamped on the slider (7 ), a washer (4) and a compression nut...
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The invention provides an adjustable automatic centering core shaft. Two guide rail bases are symmetrically mounted and fixed at the two ends of a central shaft through keys; a spacer is mounted on the central shaft between the two guide rail bases; three guide rails are arranged on the outer side face of each guide rail base along a radius direction; each guide rail is provided with a slide block; an adjusting clamping claw is fixedly mounted on each slide block through a bolt; a bowl-shaped spring is mounted at each of two ends of the central shaft; and the central shaft at the outer side of each bowl-shaped spring is provided with a gasket and a pressing nut. The adjustable automatic centering core shaft has the advantages of simple structure, convenience for utilization, stronger clamping force, capability of automatically realizing the aim of centering and higher centering precision.
Description
technical field [0001] The invention relates to a mechanical processing tool, in particular to an adjustable self-centering mandrel, and belongs to the technical field of mechanical processing equipment. Background technique [0002] In the process of mechanical processing, in order to process round tube workpieces, it is generally necessary to install and fix a mandrel at the central axis of the round tube workpiece. The existing mandrels are generally fixed in structure and cannot The diameter of the inner hole is adjusted accordingly, resulting in many specifications and models. Not only the manufacturing cost of the equipment is high, the use is troublesome, but also it is not conducive to management; although there are some adjustable mandrels in the existing technology, but this type Adjustable mandrels generally have a small adjustment range, so there are still defects such as many specifications, high manufacturing costs, troublesome use, and unfavorable manage...
Claims
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IPC IPC(8): B23Q3/14
Inventor 孙生强
Owner SUZHOU BLUE KING MACHINE TOOL TECH CO LTD