47results about How to "Precise control of movement" patented technology

The embodiment of the invention discloses an aircraft time synchronization system and method. The system comprises a first communication module and a second communication module, data transmission iscarried out between the first communication module and the second communication module through a communication line, and an I / O interface of the first communication module is connected with an I / O interface of the second communication module through an interrupt signal line; the first communication module sends data information to the second communication module through a communication line, and sends a triggered interrupt signal to the second communication module through an interrupt signal line, wherein the data information comprises sending time when the data information is sent and an interrupt signal is triggered; and the second communication module performs time synchronization with the first communication module based on the determined communication time difference and system time difference with the first communication module according to the data information and the receiving time and sending time of the interrupt signal. Accurate time synchronization among different communication modules of the aircraft is realized, so that the movement of the aircraft is accurately controlled.

A transfer tool comprises: a first support framer that is installed to be movable along a transfer tool guide track of a semiconductor processor; a pair of second support frames that is connected with the first support frame through a gap and has a plurality of pickups having gap therebetween and picking up the semiconductor devices; and a vertical gap controller for controlling the gap of the pair of the second support frames by moving a pair of second support frames, wherein the vertical gap controller includes: a vertical driving unit installed on the first support frame to generate a vertical driving force; and a linear moving unit installed on the first support frame and connected to the second support frame; the gap between the second support frames is controlled by the linear movement of vertical driving unit.

The invention discloses a spring indexing mechanism. The spring indexing mechanism comprises a machine frame. The spring indexing mechanism is characterized in that the machine frame is internally provided with an indexing electromagnet assembly capable of driving springs to turn from horizontal to vertical, a lifting assembly capable of driving the indexing electromagnet assembly to life and lower vertically and a horizontal movement assembly capable of driving the along the indexing electromagnet assembly to move in the horizontal direction. The indexing electromagnet assembly is mounted onthe lifting assembly, and the lifting assembly is mounted on the horizontal movement component. A plurality of horizontally disposed springs are adsorbed side by side on the indexing electromagnet assembly, and the indexing electromagnet assembly, the lifting assembly and the horizontal movement assembly are under unified control by a control system. The spring indexing mechanism is used in the production of spring mattress to turn the springs from horizontal to vertical and drive the springs to move to a next station, improves the production automation level of the spring mattress, reduces the working intensity in the production process, and improves the production efficiency.

The invention provides a MIFI device transmission device, which comprises a shell with a shell opening, a carrier mechanism for carrying the MIFI device, a door mechanism for controlling the opening or closing of the shell opening, and a door mechanism for controlling the carrier mechanism and the door The control mechanism of the mechanism, the carrier mechanism, the door mechanism and the control mechanism are all arranged in the casing; the door mechanism includes a door arranged at the opening of the casing and a door transmission assembly that can drive the door to move up and down. The transmission assembly is connected, and the door transmission assembly is connected with the control mechanism; the carrier mechanism includes a carrier assembly for carrying the MIFI device and a carrier transmission assembly for driving the carrier assembly to move back and forth, the carrier assembly is provided with a carrier gear bar, and the carrier transmission assembly includes a The carrier motor connected to the control mechanism and the carrier gear unit connected to the carrier motor, the carrier gear unit is connected with the carrier gear bar; the trouble of carrying the MIFI device is saved, and it is convenient to use.

The invention relates to a precision control system specially for single-side galvanization on steel plate surfaces. The precision control system comprises a base plate. A galvanization operation frame is installed in the middle of the base plate. An adjustment straining mechanism, a coating execution mechanism and a driving leveling mechanism are installed on the galvanization operation frame from front to rear in sequence. Two limiting control mechanisms are installed on the base plate. The two limiting control mechanisms are symmetrically located on the front side and the rear side of the coating execution mechanism respectively. According to the precision control system specially for single-side galvanization on steel plate surfaces, the problems that in the single-side galvanization operation on steel plates in the prior art, the steel plates are directly placed into a galvanizing pot for soaking, the thickness of a zinc coating on the surface of one steel plate cannot be accurately controlled, the uniformity of the zinc coating on the surface of one steel plate cannot be guaranteed, the motion speed and the straining degree of the steel plates in the galvanizing pot cannot becontrolled, the accuracy of single-side galvanization of the steel plates is influenced, manual work is needed for carrying out subsequent processing on the zinc coating, the labor intensity is high,the working efficiency is low, and so on can be solved, and the function of intelligent accurate operation of steel plate single-side galvanization can be realized.

The invention belongs to the field of mechanical engineering testing, and provides a large-stroke displacement high-precision measuring device based on a dynamic balance work principle. A, B and C hydraulic cylinder subsystems are designed below a measured moving shaft, the A subsystem and the B subsystem are plunger type hydraulic cylinders and have the diameter ratio of 1:3; incompressible hydraulic oil is used as a transmission medium; displacement detected by a B system sensor is magnified by 9 times, and a high-precision servo motor can control precisely motion of a lead screw, so that a signal outputted by the B system high-precision displacement sensor can always be maintained in a dynamic stable invariant state. The device has the advantages of smart structure, reasonable layout, strong adaptability, long service life and high measuring precision, can solve the problem of high-accuracy and bidirectional measurement in a wide-range full range, and has good economy and popularization value.