Calibration device and method for motion law of cam follower
A technology of motion law and calibration device, which is applied in the direction of measurement device, optical device, instrument, etc., to achieve the effect of rapid calibration, convenient operation and improvement of measurement efficiency
Active Publication Date: 2017-10-27
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology
At present, there is no high-precision, high-efficiency device and method for calibrating the actual law of motion of the follower. How to improve the calibration accuracy and efficiency of the law of motion of the cam follower so as to realize high-precision motion control is still an issue in this field. One of the technical problems to be solved
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0029] Such as figure 1 As shown, a cam follower motion law calibration device of the present invention includes a frame 1, a cam pair mechanism, a laser detection mechanism and a control device.
[0030] Specifically, such as Figure 5 , Figure 6 As shown, the cam pair mechanism includes a cam mechanism 3 and a cam follower 4, the cam mechanism 3 is fixedly mounted on the frame 1, and the c...
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The invention discloses a calibration device and method for the motion law of a cam follower, which includes a frame, a cam pair mechanism, a laser detection mechanism and a control device. The cam pair mechanism includes a cam mechanism and a driven mechanism that cooperate with each other. There are follow-up calibration aids fixed on the mechanism; the laser detection mechanism includes a plane two-dimensional adjustment platform, a height adjustment platform and a laser displacement sensor measuring head. The plane two-dimensional adjustment platform is equipped with a vertically arranged height adjustment platform through a right-angle support seat; The measuring head of the laser displacement sensor is fixed on the height adjustment platform through an integrated holder, and placed above the follow-up calibration aid; the control device is used to control the action of the cam mechanism, the follower mechanism and the follow-up calibration aid, and The measuring head of the laser displacement sensor is controlled to perform on-line measurement, and the motion rule of the cam follower is obtained according to the data obtained from the measurement. The invention has the advantages of fast calibration speed, high calibration precision, simple structure, convenient operation and the like.
Description
technical field [0001] The invention belongs to the field of calibration devices and methods, and more particularly relates to a calibration device and method for the motion law of a cam follower. Background technique [0002] The cam mechanism is widely used in the control of semi-automatic and automatic equipment due to its compact structure, high reliability, and the ability of the follower to obtain various high-speed and complex motion laws. [0003] The cam rotates at a constant speed, and the movement law of the follower is determined by the cam profile and the constraint mode of the follower. Generally, the required follower can be obtained by designing the cam profile curve and the constraint of the follower according to the required movement law of the follower. pattern of motion. However, due to the cam profile error caused by manufacturing errors and the constraint error of the follower caused by assembly, the actual motion law of the follower is not completely ...
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IPC IPC(8): G01B11/00
Inventor 贺松平张骏李斌朱国文宋宪振朱文凯龚时华
Owner HUAZHONG UNIV OF SCI & TECH