Multi-component force combination calibration device loading mechanism based on electric cylinder

Abstract

The invention discloses a multi-component force combination calibration device loading mechanism based on an electric cylinder, and belongs to the technical field of large mechanical measurement instruments and equipment. The mechanism comprises a lower bottom plate, a chain wheel and chain system, a driving motor, a ball screw, a stand column, a mobile platform, a hydraulic expansion sleeve, a Yloading beam, an X+ loading beam, an X- loading beam, a Y loading cylinder, an X- loading cylinder, an X+ auxiliary Y- loading cylinder, an X+ loading cylinder, an X+ auxiliary Y+ loading cylinder, anupper top plate, a Z loading cylinder, a Z auxiliary Y loading cylinder and a Z auxiliary X loading cylinder. When a tested sensor is calibrated, the sensor is fixed on the mobile platform, and the mobile platform moves up and down to adjust the Z-direction position of the sensor. According to the invention, the defects of amulti-component force calibration device loading system can be overcome,the tested sensor is continuously loaded and calibrated, the pulling direction of the tested sensor is calibrated, all components of the tested sensor are tested independently and in a combined manner, the requirement on the number of loading cylinders is lower, and the advantages of high control precision, low cost, small installation space and the like are achieved.

Description

technical field [0001] The invention relates to a loading mechanism of a multi-component force combined calibration device based on an electric cylinder, belonging to the technical field of large-scale mechanical measuring instruments. Background technique [0002] Multi-component force sensors are widely used in various fields such as aerospace, weapon industry, processing and manufacturing. At present, the calibration methods of multi-component force sensors mainly include the following two types: 1. Process specific loading tooling according to the model of the multi-component force sensor to be tested, and carry out experiments on the traditional single-component force calibration device to realize the separation of each component of the sensor. Calibration; 2. Establish a special multi-component force combination calibration device, cooperate with special loading tooling, and realize separate calibration experiments and combined loading calibration experiments for each ...

AI Technical Summary

Problems solved by technology

However, since the hydraulic cylinder is used as the power source, the device can only apply a compressive force to the sensor under test, and cannot pull the sensor under test toward calibration.

As a power source, the hydraulic cylinder has problems such as low force value control accuracy and large fluctuations when loading a small force value.

The equipment needs to use 13 loading cylinders in order to realize multi-component force combined loading calibration, and the cost and required installation space are high

At the same time, the multi-component force combined loading calibration device is affected by structural design limitations, and cannot apply a simple torque component to the sensor under test. When applying a torque component, it will inevitably introduce a force value component.

It is impossible to realize individual and combined inspection of all components of the sensor under test

Images