Target switching wheel

Abstract

The invention belongs to the technical field of machinery, and particularly relates to a target switching wheel which comprises a worm and gear unit, a gear unit and a shell main body. The shell main body is used for supporting the worm and gear unit and the gear unit; the worm and gear unit comprises a worm gear, a worm and a first motor; the first motor drives the worm to move so as to drive the worm wheel to rotate; the gear unit comprises a main gear, a secondary gear and a second motor; and the second motor drives the main gear to rotate so as to drive the secondary gear and the target to rotate. According to the target switching wheel, target switching and adjustment can be completed only by controlling the rotation step numbers of the two motors, manual replacement and adjustment are not needed, the test efficiency and precision can be greatly improved, the difficulty of structure function implementation is reduced, and errors caused by manual operation are reduced.

Description

technical field [0001] The application belongs to the technical field of machinery, and in particular relates to a target switching wheel. Background technique [0002] At present, the main target switching wheel mainly has two technical routes: 1. The target is installed on the worm wheel plane centered on the worm wheel rotation axis, the stepping motor drives the worm wheel, and the worm wheel rotates to realize the switching between targets. This route can realize High reduction ratio, improved rotation resolution and precision, and anti-reversal function, but this method has low transmission efficiency, complicated process, and high cost; 2. Install the target on the gear centered on the gear rotation axis, and the stepper motor The driving gear, through the meshing between the large and small gears, the small gear drives the large gear to rotate to realize the switching between targets. This technical route realizes the high-precision switching of the target through th...

AI Technical Summary

Problems solved by technology

[0002] At present, there are mainly two technical routes for the main target switching wheel: 1. The target is installed on the worm wheel plane centered on the worm wheel rotation axis, the stepping motor drives the worm gear, and the worm wheel rotates to realize the switching between targets. This route can realize High reduction ratio, improved rotation resolution and precision, and anti-reversal function, but this method has low transmission efficiency, complicated process, and high cost; 2. Install the target on the gear centered on the gear rotation axis, and the stepper motor The driving gear, through the meshing between the large and small gears, the small gear drives the large gear to rotate, and realizes the switching between targets. This technical route realizes the high-precision switching of the target through the principle of the reducer, but due to factors such as gear clearance and gear coordination Influenced by this method, the switching accuracy of this method is low, and precise positioning components are generally added to achieve high-precision positioning

[0003] Since the targets may need to be aligned and adjusted during use, the current target switching wheel only has the switching between targets, and does not have the automatic adjustment of the target itself. The existing method is to design a ring-shaped waist groove structure on each target structure. According to the adjustment amount Manual rotation adjustment, this adjustment method has low efficiency, poor precision, and complicated operation by personnel, which directly affects the subsequent test results

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