Lifting type centering clamping device and clamping method thereof

Abstract

A lifting type centering clamping device comprises a centering clamping mechanism and a lifting mechanism. The centering clamping mechanism comprises a bottom plate, a clamping air cylinder, a left connecting plate, a right connecting plate, a left clamping plate and a right clamping plate, wherein the left connecting plate, the right connecting plate, the left clamping plate and the right clamping plate are sequentially and symmetrically mounted on the left and right sides of the bottom plate; the left clamping plate and the right clamping plate are oppositely mounted to form an open-ring type clamping opening; the left connecting plate is connected with the left clamping plate through a screw rod; the right connecting plate is connected with a piston rod of the clamping air cylinder stretching into the right connecting plate; and the clamping air cylinder moves to drive the right clamping plate to move towards the left clamping plate to clamp or loosen a workpiece. The lifting mechanism comprises a base and a lifting air cylinder; a piston rod of the lifting air cylinder is connected with the bottom plate of the centering clamping mechanism; and the lifting air cylinder moves to push the bottom plate to lift and drop to realize lifting and dropping of the centering clamping mechanism. A clamping method of the centering clamping device comprises the steps of initial adjustment, clamping and loosening. The device is small in size, compact in structure and easy in operation of the clamping method, can meet the clamping machining requirement of longitudinally and transversely conveying the workpiece, and can be widely used in an automatic logistics production line.

Description

technical field [0001] The invention relates to a clamping device and a clamping method of a circular workpiece, in particular to a lift-type centering clamping device and a clamping method thereof. Background technique [0002] The centering clamping device is used to tighten and fix the pipe or cylindrical workpiece (referred to as circular workpiece) for processing. The commonly used centering clamping device in the market is a fixed centering clamping device, that is, the device is fixed. The height of the clamping mouth cannot be adjusted up and down except for opening or clamping. The patent publication number is CN105855777A, and the invention name is "Simple Barrel Centering Clamping Mechanism" is one of them; the fixed centering clamping device includes The mounting seat and the clamping and centering mechanism, on the mounting seat below the centering and clamping mechanism, there are feeding rollers and a power mechanism for driving the feeding rollers, and on the...

AI Technical Summary

Problems solved by technology

[0003] 1. The clamping port of the centering clamping mechanism and the machine base form a "closed-loop" structure. During processing, the pipe can only extend longitudinally into the clamping port of the centering clamping mechanism. It is inconvenient to move during processing, and the processing of pipes is limited. It is a product that needs to be processed at the same time on both ends of the pipe;

[0004] 2. The opening angle of the clamping mouth of the centering clamping mechanism is limited, which cannot meet the processing requirements of various specifications of pipes; the height of the clamping mouth cannot be adjusted up and down except for opening or clamping, which is troublesome to adjust during processing and affects efficiency;

[0005] 3. Complex mechanical structure and high processing cost

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