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Internal expansion clamping mechanism with self-locking function

A clamping mechanism and internal expansion technology, applied in the direction of expanding the mandrel, etc., can solve the problems of complex fixture structure and long clamping time of the workpiece

Pending Publication Date: 2018-09-28
FOSHAN UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of the prior art, provide an internal expansion clamping mechanism with self-locking function, and solve the technical problems of complicated fixture structure and too long clamping time of the workpiece

Method used

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  • Internal expansion clamping mechanism with self-locking function
  • Internal expansion clamping mechanism with self-locking function

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Embodiment Construction

[0021] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0022] The present invention provides an internal expansion clamping mechanism with a self-locking function, which includes an expansion rod 1, a push rod 2, a movable top plate 3 and a bottom plate 4; the push rod 2 is located at the center of the expansion rod 1 and passes through the expansion rod 1 to push The bottom of the rod 2 is fixedly connected with the movable top plate 3; the bottom of the expansion rod 1 is fixed on the bottom plate 4; the movable top plate 3 is arranged inside the bottom plate 4 and can slide up and down inside the bottom plate 4. The push rod 2 is conical. The advantages of this structure are simple structure, convenient operation and...

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Abstract

The invention discloses an internal expansion clamping mechanism with a self-locking function. The internal expansion clamping mechanism comprises expansion rods, a push rod, a movable top plate and bottom plates; the push rod is positioned in the center of the expansion rods and penetrates through the expansion rods, the bottom of the push rod is fixedly connected with the movable top plate, andthe bottoms of the expansion rod are fixed on the bottom plates; the movable top plate is arranged in the bottom plates and can slide up and down in the bottom plates. The internal expansion clampingmechanism has the beneficial effects that balls are arranged on the expansion rods, notches are formed in the push rod, and the balls are clamped on the notches, so that the self-locking function is achieved, the structure is simple, and the device is suitable for market popularization; positioning plates are arranged, and the bottoms of the expansion rods are fixed on the positioning plates, so that the push rod can be guaranteed to move up and down along the expansion rods under the action of the movable top plate; and limiting bottom plates are arranged, so that the movable top plate can beprevented from reaching the outside of the bottom plates under the action of reset springs.

Description

technical field [0001] The invention belongs to the technical field of fixture design, and in particular relates to an internal expansion clamping mechanism with a self-locking function. Background technique [0002] At present, mechanical manufacturing is inseparable from metal cutting machine tools, and machine tool fixtures are one of the important process equipment that is indispensable to ensure the quality of machining, improve production efficiency, reduce labor intensity, reduce excessive requirements for workers' skills, and realize the automation of the production process. one. Machine tool fixtures are widely used in the manufacturing industry, and the use of a large number of special machine tool fixtures provides the necessary conditions for mass production. In the past, after the line was drawn on the workpiece, the four-jaw chuck was used to install it according to the line, and then the inner hole was processed. During the correction process, adjust the two...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23B31/40
CPCB23B31/40
Inventor 李伟陈就邓爽爽
Owner FOSHAN UNIVERSITY
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