Two-way beam multi-axis force sensor

Abstract

The invention relates to a two-way beam multi-axis force sensor, wherein, the elastic element of the sensor is of a symmetrical beam structure; an upper bearing and connecting surface and a lower bearing and connecting surface are toroidal bodies and have the same structure; the lower side of the upper bearing and connecting surface is equipped with a Y-directional stress surface with a rectangular section, and the rectangular section is in transition connection with the upper bearing and connecting surface through an circular arc; the upper side of the lower bearing and connecting surface is equipped with an X-directional stress surface with a rectangular section, the X-directional stress surface is vertically arranged with the Y-directional stress surface in a crossing manner, and the rectangular section is in transition connection with the lower bearing and connecting surface through an circular arc; and a torque MZ stress surface with a round section is arranged between the X-directional stress surface and the Y-directional stress surface and is in transition connection with the directional stress surfaces though circular arcs. The two-way beam multi-axial force sensor improves other axial anti-loading section coefficients under the action of the main shaft load, thus improving the anti-loading capability of the sensor and the anti-interference capability while measuring; and an integrated multi-section structure eliminates the measurement errors caused by factors such as processing, assembly, interchange and the like of combined parts.

Description

technical field [0001] The invention relates to a multi-axis force sensor, in particular to a symmetrical beam type four-axis force sensor. Background technique [0002] The existing multi-axis force or four-axis force strain sensor has a complex structure, which requires multi-section and multiple components for structural combination, coordination, processing, assembly, interchangeability, etc. Factors will bring a certain measurement error. Contents of the invention [0003] The present invention is to provide a bidirectional weighing beam type multi-axis force sensor, which uses a symmetrical beam structure as the elastic element of the sensor, and pastes resistance strain gauges on the corresponding cross-sectional positions to complete the three forces (X, Y, Z axes) ) and a torque (around the Z axis), the structure adopts the form of a bidirectional symmetrical beam, which makes the anti-load section coefficient of the other axial directions ideally improved under ...

AI Technical Summary

Problems solved by technology

[0002] The existing multi-axis force or four-axis force strain sensor has a complex structure, which requires multi-sections and multiple assemblies for structural combination, coordination, processing, assembly, interchangeability, etc. Factors will bring a certain measurement error

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