Metal bellows radial stiffness detection variable diameter clamping device

Abstract

The invention discloses a metal bellows radial rigidity detection variable-diameter clamping device, which includes loading plates arranged up and down facing each other. The flexible gasket between the loading plates, the outer side of the flexible gasket is slidingly matched with one end of multiple radial positioning devices, the other end of the multiple radial positioning devices and the loading plate along the radial direction of the concave arc surface For relative movement, one end of the steel wire rope is fixedly connected to both sides of the flexible washer, and the other end of the steel wire rope is connected with a wire rope retractable device. The invention adjusts the screw rod in the radial adjustment device, so that the diameter of the washer compression section in the flexible washer that fits the metal bellows changes and completely fits the metal bellows, and is suitable for metal bellows of different diameters. detection. In the adjustment process, only the screw rod and the washer need to be operated to lock the screw rod, the adjustment process is fast and efficient, and the scale line on the screw rod can precisely control the adjustment amount to be consistent and the adjustment accuracy is high.

Description

technical field [0001] The invention relates to the technical field of detection of metal bellows, in particular to a variable-diameter clamping device for detecting radial stiffness of metal bellows. Background technique [0002] In the radial stiffness detection process of the metal bellows, it is necessary to clamp the metal bellows through the clamping device on the press, and apply a uniform load to the set value to measure the deformation of the metal bellows, thereby measuring its radial stiffness . For the same press, when it is necessary to detect metal bellows of different diameters, different loading plates need to be replaced, resulting in a time-consuming and laborious installation and disassembly process, and it is necessary to trial-manufacture various types of loading plates, clamping The installation cost is high. [0003] Chinese patent CN205981885U discloses a fixture device for testing the stiffness of circular metal bellows rings of different sizes. I...

AI Technical Summary

Problems solved by technology

However, when this device detects metal bellows with different diameters, it needs to manually disassemble and install multiple diameter conversion gaskets, and then after multiple trial installations, it is verified whether the last gasket is completely attached to the metal bellows, and different lengths need to be replaced. the latch

As a result, the entire conversion process is still time-consuming and laborious, and as the diameter of the bellows becomes smaller, more gaskets are required to be stacked, and the clamping stability is not high

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