Flange fixing device utilizing lever transmission principle for dual fixing

Abstract

The invention relates to the technical field of flanges, and discloses a flange fixing device utilizing a lever transmission principle for dual fixing. The flange fixing device comprises a supportingseat, the supporting seat is internally and movably connected with gear columns, the gear columns are externally connected with inner arc-shaped toothed rods and outer arc-shaped toothed rods in a meshed mode, the inner arc-shaped toothed rods are externally connected with first pull rods in a hinged mode, the outer arc-shaped toothed rods are externally connected with second pull rods in a hingedmode, and the first pull rods and the second pull rods are externally connected with sliding rods in a hinged mode. Through cooperative use of the gear columns, the inner arc-shaped toothed rods, theouter arc-shaped toothed rods, the first pull rods, the second pull rods and the sliding rods, the effects of adjusting the sliding rods and enabling the sliding rods to drive fastening blocks to clamp flanges are achieved, clamping of flanges with different diameters can be achieved, so that the number of clamps is reduced, then the flange production cost is reduced, the clamp storage space is reduced, meanwhile, the axes of the flanges can be determined, the axes of the flanges and the axis of the supporting seat are collinear, and then the flange machining precision is guaranteed.

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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