Laser position indicator

Abstract

The invention discloses a laser position indicator. The laser position indicator comprises a laser lamp as well as a spinning mechanism for driving the laser lamp to move, a displacement mechanism and an inclination mechanism; the spinning mechanism comprises a spinning driving device, a spinning worm and wormwheel transmission pair, the spinning driving device is used for driving the laser lamp to rotate around the first axle as the centre through the spinning worm and wormwheel transmission pair, the first axle is the self central axle of the laser lamp; the displacement mechanism comprises a displacement driving device and a displacement transmission screw, the displacement driving device is used for driving the laser lamp to move in the straight line along the second axle through the displacement transmission screw, the second axle is the central axle of the transmission screw; the inclination mechanism comprises an inclination driving device and an inclination worm and wormwheel transmission pair, the inclination driving device is used for driving the laser lamp to rotate along the third axle as the centre through the inclination worm and wormwheel transmission pair; the third axle, the first axle and the second axle are vertical to each other in a three-dimensional space. The automatic and precise laser lamp position regulation can be realized through the position indicator disclosed by the invention, the operation can be performed by one man, and the work load is reduced.

Description

technical field [0001] The invention relates to a positioning device for a spatial position, in particular to a laser positioning instrument. Background technique [0002] An electrical control and mechanical module assembly that uses one or more laser lights for spatial positioning is called a laser locator. In the medical field, the laser lines emitted by various types of laser locators are often used as a visual reference coordinate system to simulate the theoretical coordinate system relied on in the process of 3D reconstruction of lesions, so as to cooperate with the repetition of 3D human body scanning and lesion treatment. Positioning works. Among them, medical radiation inspection equipment (such as: CT machine, etc.) needs to be used in conjunction with a single-axis large-stroke mobile laser locator (abbreviation: "mobile" laser locator). This "mobile" laser locator emits "One"-shaped positioning spot; medical radiation therapy equipment (such as: medical linear ...

AI Technical Summary

Problems solved by technology

[0006] 1. It is difficult to guarantee the accuracy of adjustment

Due to the amplification effect of the laser light arm, if the technician manually adjusts any small angle of the laser light irradiation attitude at N, the position of the laser irradiation spot formed at M will change greatly, so that the manual adjustment can meet the spot position tolerance (such as positive within minus 1mm) requirements become very difficult

[0007] 2. The regulation is easily disturbed

At this time, the external force interference and mechanical vibration generated by the contact between the technician at N and the laser locator 101 often cause the adjusted positioning accuracy to be lost again.

[0008] 3. Adjustment work efficiency is low

The adjustment work is generally done by two people, and a single technician usually cannot accurately observe the millimeter-level (or even tenth of a millimeter) small change in the laser irradiation spot at M, which is 2 meters away, at N, resulting in a per capita working low efficiency

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