Device for automatically measuring thickness of nuclear fuel plate

Abstract

The invention discloses a device for automatically measuring the thickness of a nuclear fuel plate. The device comprises a robot grabbing system (1) and a robot track (2); the front and rear sides of the robot track (2) are respectively provided with plate thickness detection devices (3); the robot grabbing system (1) is arranged on the robot track (2) and can move along the robot track (2); a grabbing device is arranged on an output shaft of the robot grabbing system (1); each plate thickness detection device (3) comprises a bottom frame (4) and a platform (5), wherein the platform (5) is fixedly arranged on the top surface of the bottom frame (4) and fixedly provided with a supporting seat (57); a support (6) with an opening is fixedly arranged on each supporting seat (57); and an upper laser displacement sensor (7) and a lower laser displacement sensor (8) are arranged on each support (6). The device is compact in structure, can improve nuclear fuel plate detection efficiency, improve nuclear fuel plate thickness detection accuracy, and reduce nuclear fuel plate feeding difficulty.

Description

technical field [0001] The invention relates to the technical field of thickness detection of nuclear fuel plates, in particular to a device for automatically measuring the thickness of nuclear fuel plates. Background technique [0002] The nuclear fuel plate is a strip-shaped plate with a certain thickness. After its production and molding, its thickness needs to be tested. The purpose is to eliminate the nuclear fuel plate whose thickness does not meet the requirements. The existing detection method is to first hang the nuclear fuel plate to be tested horizontally, and then use two laser displacement sensors to irradiate the upper surface and the lower surface of the nuclear fuel plate respectively to measure the thickness of the nuclear fuel plate. However, although this measurement method can measure the thickness of the nuclear fuel plate, it still has the following defects: 1. Before the measurement, the laser displacement sensor needs to be moved, and vibration will i...

AI Technical Summary

Problems solved by technology

However, although this measurement method can measure the thickness of the nuclear fuel plate, it still has the following defects: 1. Before the measurement, the laser displacement sensor needs to be moved, and vibration will inevitably occur during the movement, which will lead to inaccurate data measured by the laser displacement sensor, thereby reducing The accuracy of thickness measurement

2. The nuclear fuel plate is transferred to the detection station by the mechanical arm. Before the mechanical arm grabs the nuclear fuel plate, the worker needs to stack the nuclear fuel plate in the designated area of ​​the loading rack to ensure that the mechanical arm can accurately grasp it. Nuclear fuel plates in a designated area, but when manually stacking nuclear fuel plates on the loading rack, it is difficult to ensure that the nuclear fuel plates are accurately positioned on the loading rack, which increases the difficulty of loading nuclear fuel plates, and requires workers to place them one by one The nuclear fuel plates are stacked on the loading rack, which increases the loading time and reduces the detection efficiency of the nuclear fuel plate thickness

3. The thickness detection standard is single-point thickness, which does not meet the detection standard and the detection accuracy is low

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