A double-fixed flange fixing device using the principle of lever transmission

Abstract

The invention relates to the technical field of flanges, and discloses a double-fixed flange fixing device using a lever transmission principle, comprising a support seat, a gear column is movably connected inside the support seat, and an external meshing connection of the gear column is The inner arc tooth bar and the outer arc tooth bar, the outer arc tooth bar is hingedly connected to the first pull rod, the outer arc tooth bar is hingedly connected with the second pull rod, the first pull rod and the first pull rod are hingedly connected to the outside. A sliding rod is hingedly connected to the outside of the two pull rods. Through the gear column, the inner arc tooth rod, the outer arc tooth rod, the first pull rod, the second pull rod and the sliding rod are used together, so as to adjust the sliding rod and make the sliding rod drive The effect of clamping the flange by the tightening block can meet the clamping of flanges of different diameters, thereby reducing the number of clamps, thereby reducing the cost of flange production and reducing the storage space of clamps. The axis of the flange is collinear with the axis of the support seat, so as to ensure the accuracy of flange processing.

Description

technical field [0001] The invention relates to the technical field of flanges, in particular to a double-fixed flange fixing device utilizing the principle of lever transmission. Background technique [0002] Flanges, also known as flange flanges or flanges, are parts that are connected to each other between shafts and are used for connection between pipe ends; they are also useful for flanges on the inlet and outlet of equipment, on flanges There are holes and bolts to make the two flanges tightly connected, and the gasket is used to seal the flanges. The flanges are divided into threaded connection (threaded connection) flanges, welding flanges and clip flanges. Flanges are used in pairs. Flanges with different pressures have different thicknesses, and the bolts they use are also different. Since the flange plays the role of connecting the two parts, the machining accuracy of the center hole is required to be high. [0003] In the existing flange processing production pr...

AI Technical Summary

Problems solved by technology

[0003] In the existing flange processing production process, the flange and the workpiece clamping platen with fastening screws connected with the boring machine table are usually positioned and clamped to complete the positioning and clamping. It is necessary to manually disassemble and assemble the fixture repeatedly to process a flange, resulting in complicated clamping and low production efficiency. Moreover, due to the different sizes of the flange, it is often necessary to prepare multiple sets of flange clamping plates to cope with different specifications of the flange. Blue processing, thereby increasing production costs and increasing storage space for fixtures

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