Tool and method for clamping guide pipes by using hydraulic rubber bags

Abstract

The invention provides a tool and a method for clamping guide pipes by using hydraulic rubber bags. The tool comprises a box provided with the rubber bags inside, and positioning rings; the positioning rings capable of being disassembled and replaced are arranged in guide pipe ports on the front and back sides of the box; the hollow rubber bags are fixed in the box; and the rubber bags are connected with an external hydraulic pump. The hydraulic pump is opened; when hydraulic oil is injected in the rubber bags by hydraulic pipelines, the rubber bags are inflated to enlarge to finally wrap thesurfaces of the guide pipes and to generate pressure; and when the ends of the guide pipes are machined, the guide pipes generate relative motion tendency under the effect of external force, so that the extrusion of the rubber bags to the guide pipes is converted to friction force for stable fixation of the guide pipes.

Description

technical field [0001] The application belongs to the field of manufacturing pipe clamping and positioning auxiliary devices, in particular to a tool and method for clamping a catheter by using a hydraulic rubber bag. Background technique [0002] Catheters are widely used in industrial production, and catheters of various materials and shapes are an important part of modern industrial products. Therefore, the forming and processing of catheters is also an important link in industrial production. In the process of bending, end processing, extrusion molding, etc. of the catheter, the fixation of the position and the maintenance of the posture of the catheter all play a decisive role in the quality of the finished product. [0003] At present, splints are generally used in industrial production to clamp conduits. During the processing of the end of the catheter, the left and right separated clamping parts are pressurized to close and clamp the catheter; the catheter is fixed...

AI Technical Summary

Problems solved by technology

During the clamping process, the cutting gap is easy to pinch the surface of the catheter due to the extrusion of the catheter

In order to avoid pinching, paper is usually placed in the catheter clamping area during production, which is cumbersome and easy to cause injury to operators;

[0006] 2. The friction coefficient of the aluminum splint is large, but it is soft and wears quickly, so it is difficult to clamp the steel conduit; the steel splint can withstand a large pressure, but the friction coefficient is small, and it is also difficult to stably clamp the steel conduit , it is also easy to pinch the aluminum conduit;

[0007] 3. The pressure provided by the hydraulic system is relatively large, and when the thrust is applied in one direction, it is easy to cause deformation and offset of the clamping base, resulting in eccentricity of the pipe end and affecting the processing quality of the pipe end

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