Deep Hole Perpendicularity Laser Measuring System and Measuring Method

Abstract

The invention discloses a laser measuring system for deep hole verticality. The laser measuring system comprises a handheld vertical support, a laser transmitter, a transition sleeve and a laser position detecting device, wherein the laser transmitter is arranged inside the handheld vertical support and a front end transmitting head of the laser transmitter is exposed outside the handheld vertical support; the front end transmitting head of the laser transmitter is inserted into one end of a measured deep hole, so that the handheld vertical support is mutually contacted with a measured reference surface; the transition sleeve is arranged inside the other end of the measured deep hole; the laser position detecting device is arranged inside the transition sleeve and comprises a laser receiver, a display and a power supply which are connected through circuits; the laser receiver is used for receiving straightening laser transmitted by the laser transmitter, and a position deviation coordinate value of a physical center of an incidence laser and the laser receiver is displayed on the display by the laser receiver. The invention also provides a laser measuring method for the deep hole verticality. With the adoption of the system and the method, verticality of the measured deep hole relative to a reference surface can be measured conveniently, efficiently and precisely; and depth of the measured deep hole is not limited by a size of the measuring system.

Description

technical field [0001] The invention relates to a measuring system and method for verticality of a deep hole, in particular to a system and a method for measuring the verticality of a deep hole by using a laser, belonging to the technical field of measurement. Background technique [0002] The diameter of the tube plate of the nuclear steam generator is Ф3000~Ф5000mm, and the thickness is 600~900mm. It is necessary to take the plane of the tube plate side of the nuclear steam generator as the reference, and measure the deep holes on the tube plate of the nuclear steam generator relative to the reference plane. verticality. The deviation of the verticality of the deep hole will directly affect the installation of the support plate later, and whether it can smoothly and accurately pass through the U-shaped tube bundle with a length of more than ten meters in nearly ten thousand rectangular tube holes. [0003] The traditional deep hole verticality measurement method uses a ma...

AI Technical Summary

Problems solved by technology

1. The measurement data is read manually, and the error is large, resulting in low measurement accuracy and measurement efficiency

2. The existing technology uses the mandrel to simulate the reference center axis and the center axis of the measured hole, resulting in the measurement length of the measured hole being limited by the length of the mandrel, which cannot conveniently and quickly realize the measurement of the verticality of the deep hole

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