5results about How to "Reduce mechanical vibration" patented technology

This invention relates to the field of motor control, and more particularly to a positioning and calibration method for a gantry mechanism of a bonding machine based on solder joint alignment. The method includes: monitoring the speed difference and real-time displacement deviation of two independently controlled servo motors on both sides of the gantry mechanism; calculating the predicted displacement deviation on both sides of the gantry mechanism based on the speed difference and real-time displacement deviation; calculating the deflection angle of the gantry mechanism's crossbeam relative to the guide rail length direction based on the predicted displacement deviation; determining the target speed of the two servo motors based on the deflection angle; and determining the change process of the current speed towards the target speed. This invention utilizes the length of the crossbeam to ensure that the generated corrective torque is physically matched with the required angular deviation; it can automatically plan a smoother speed change rate under high-risk conditions with relatively large deflection angles; and it employs a relatively fast speed change process under normal fine-tuning conditions with relatively small deflection angles, thereby ensuring the system's rapid response capability to minor disturbances.

The application relates to the field of gas detection, in particular to a quartz tuning fork gas sensing device based on diamond-like coating enhancement, which comprises sequentially connected laser signal emitting units, light absorption cells, lenses, quartz tuning forks and electric signal collecting units, the surface of the quartz tuning fork is coated with a diamond-like coating; target light signals generated by the laser signal emitting units are transmitted to the light absorption cells; the light absorption cells contain target gases to be detected, and light signals interact with the target gases in the light absorption cells; the lenses focus the light emitted from the light absorption cells to the surface of the quartz tuning fork coated with the diamond-like coating. Compared with the prior art, the application can sensitively capture slight changes caused by trace gases, convert the changes into obvious electric signals, and the electric signals have a good linear relationship with the gas concentration, so that low-concentration gases can be measured with high precision.

The utility model relates to the flywheel energy storage technical field, and disclose a kind of flywheel energy storage device of reducing power consumption, including upper motor and energy storage mechanism, the upper motor and energy storage mechanism are communicated to form vacuum cavity, the rotating joint of the shaft that the bottom end extends to the inside of energy storage mechanism is connected in the inside of the upper motor, the inside fixedly connected with the sealing cover of the bottom and energy storage mechanism fixed connection of the upper motor, the sealing cover is sleeved in the outside of shaft, the upper motor includes upper casing;This flywheel energy storage device of reducing power consumption can solve the problem of motor temperature rise caused by low heat dissipation coefficient of excitation winding and large rotor eddy current loss, the problem of high self-discharge rate caused by permanent magnet suspension flywheel rotor, the problem of high manufacturing cost caused by winding potting, improve the stability, security in the process of flywheel energy storage system use, reduce flywheel energy storage system cost.

The application belongs to the field of robot motion planning and navigation technology, and provides an arbitrary shape object trajectory planning method and system based on space-time combined A-star, which comprises the following technical solutions: generating all discrete angle corresponding bounding boxes and robot contour mask information based on the constructed robot polygon model; defining a four-dimensional state space and initializing a starting state and a target state; in the four-dimensional state space, for the node with the minimum value, a predefined motion primitive is applied to generate a successor state candidate set; for each successor state candidate node, the discrete angle corresponding bounding box and robot contour mask information of the current node are extracted, and a bit operation is performed on the corresponding area of the environment grid map, and whether collision occurs is judged according to the operation result; when the search reaches the target state or meets the termination condition, a discrete space-time path is generated by backtracking, the discrete space-time path is interpolated and smoothed, and a final executable trajectory is output.

The utility model provides a kind of equidistance cutting device for glass interlayer production, including rack and respectively being arranged in the winding roller and pay-off roll of rack both sides, the side of winding roller and pay-off roll is uniformly provided with guide roller, two the cutting plate of being fixedly connected on rack is provided between the guide roller, the upper portion of cutting plate is provided with the mount rack of sliding connection in the rack, the middle part of mount rack is fixedly connected with first tool holder, the both ends of mount rack are slidingly connected with two second tool holders, and cutting knife is arranged on the first tool holder and the second tool holder. The utility model provides glass interlayer production by the screw thread transmission design of bidirectional screw rod and second tool holder, cooperate first motor drive, realize two second tool holder synchronous symmetrical movement, without stopping machine can quickly adjust cutting interval, significantly reduce change time, adapt to the continuous production demand of multi-specification product, improve equipment utilization.