37results about How to "Good movement synchronization" patented technology

The invention belongs to the technical field of electromechanical integration and drive control, and discloses a high-precision control system and control method for an electric six-degree-of-freedom motion platform. The control system includes an embedded controller, a real-time Ethernet bus network and a driver; the embedded controller The control command is transmitted to the driver through the real-time Ethernet bus network, the electric cylinder is connected to the servo motor, the driver directly drives the servo motor, and the servo motor drives the telescopic movement of the electric cylinder to realize the movement of the six-degree-of-freedom motion platform. The invention has the advantages of high real-time control, good motion synchronization of each branch, high reliability, simple structure, flexible expansion, and easy maintenance; the flexible software design platform can not only realize motion simulation, but also realize high-precision and multiple degrees of freedom positioning.

A chain connector assembly machine comprising a driver apparatus (1), a working turntable (2), a pin feeder apparatus (3), an outer-piece feeder apparatus (4), a piece assembly apparatus (5), a round riveting apparatus (6), and a control apparatus (10). The round riveting apparatus (6) comprises a first round riveting apparatus (61) and a second round riveting apparatus (62). The driver apparatus is connected to the working turntable. The working turntable has arranged evenly at the outside thereof 12 pairs of grooves. The pin feeder apparatus is connected to the first pair of grooves (71), the outer-piece feeder apparatus and the piece assembly apparatus are connected to the third pair of grooves (73), the first round riveting apparatus is connected to the sixth pair of grooves (76), the second round riveting apparatus is connected to the ninth pair of grooves (79), and a finished product outlet is provided at the eleventh pair of grooves. The control apparatus controls the driver apparatus, the pin feeder apparatus, the outer-piece feeder apparatus, the piece assembly apparatus, the first round riveting apparatus, and the second round riveting apparatus. The chain connector assembly machine allows for increased reliability and movement synchronicity during production, thus preventing losses incurred during production.

The invention comprises a pressure arm unit, a rotation shaft unit, a return spring, a push pedal, an internal friction plate, a brake, an external friction plate, a support and a caliper body arranged in order from right to left. Because of using the rectangular section torsional spring function, in a specific environment the invention can realize a one-way transmission of the torque and also can realize an overload protection effectively. The reasonable design of the pressure arm unit can supply the stable brake moment.

The invention discloses an adjustment and control method for the synchronism of guide vanes of a large-scale water turbine, comprising the following steps: the resistance value of a drive coil of a servomotor is measured and then accurately defined in a single guide vane controller; the zero position and the full scale of a single guide vane instruction of the single guide vane controller are adjusted; a guide vane in the single guide vane controller synchronously controls adjustment of the zero position and the full scale of the instruction; the zero position and the full scale of a guide vane opening displacement sensor are adjusted; the vane mechanical bias voltage is measured and adjusted; the control parameter of the single guide vane is set; the synchronous control parameter of the guide vane is set; the starting time and the closing time of the guide vane are measured and adjusted; a single guide vane displacement transmitter gives a failure alarm; a single guide vane control loop gives an alarm; and an overall guide vane control loop gives an alarm. The adjustment and control method improves the control precision of guide vanes of a hydropower generating unit; the deviationof the opening instruction and the feedback is small; the action synchronism of the guide vane is good; both the starting time and the closing time of the guide vane meet the design requirements; themaximum deviation of the switching time is better than that of the standard requirement.

A chain joint assembling method includes step 1, providing a working rotary table; step 2, conveying pins; step 3, feeding outer links and assembling the same; step 4, primary round riveting; step 5, secondary round riveting. In the step 1, the working rotary table is connected with a driving device, 12 pairs of grooves are arranged on the outer side of the working rotary table uniformly, the driving device drives the working rotary table to rotate intermittently, and the rotation angle each time is 30 degrees. In the step 2, two pins are pushed into a first pair of grooves; In the step 3, the working rotary table rotates twice to push the links to the pins, the links are then assembled, and parts of the pins are protruded from the links. In the step 4, the working rotary table rotates three times continuously so that one of the pins with the links in the previous steps is subjected to round riveting. In the step 5, the working rotary table continues to rotate three times so that the other pin is subjected to round riveting. By the chain joint assembling method, reliability and action synchronism during production can be improved, loss in production is avoided, and production efficiency is improved.

The invention discloses a variable-structure mobile robot capable of making orthogonal bidirectional movement and a control method of the variable-structure mobile robot. The variable-structure mobile robot capable of making orthogonal bidirectional movement comprises a chassis, a separation type variable-position driving mechanism, a variable-position motor, an integral variable-position driving mechanism, a variable-position electric push rod, a driving wheel motor A, a driving wheel motor B, a driving wheel A, a driving wheel B, a follower wheel A, a follower wheel B, a control device and a guiding sensor. The separation type variable-position driving mechanism is installed on the chassis, and the position, relative to the chassis, of the axis of the driving wheel A is changed while the position of the driving wheel motor A is kept unchanged. The integral variable-position driving mechanism is installed on a top cover, and the position, relative to the chassis, of the axis of the driving wheel B is changed by changing the height of the top cover. The axis of the driving wheel A is orthogonal with the driving wheel B, and the lowest position of the axis of the driving wheel A is the same as that of the driving wheel B. Orthogonal bidirectional movement of the mobile robot is achieved by changing the driving wheels making contact with the ground, the movement direction can be freely switched between orthogonal directions in the same plane, and the movement maneuverability and flexibility of the mobile robot are enhanced.

The invention relates to a liquid forging device of a multisection mold surface for a universal oil hydraulic press, belonging to the technical field of metal processing and comprising movable modules, upper dies, a concave die insert, oblique wedges, a pull rod, side plates, sliding pins, a supporting block and a force transmission transverse beam, wherein the upper dies are positioned in cavities of the movable modules; the two movable modules are positioned on the supporting block of a workbench of the press and can move along a guiding groove on the supporting block left and right; the force transmission bevels of the left oblique wedge and the right oblique wedge respectively come into tight contact with bevels on the two movable modules; a plunger rod of an oil cylinder under the oil hydraulic press is fastened with the force transmission transverse beam in a hole of the supporting block and is respectively connected with the oblique wedges by the pull rod; the sliding pins on both sides of the movable modules are matched with holes of the sliding pins of the side plates; and the side plates are fastened on both sides of the oblique wedges and are connected with the oblique wedges into a whole. The liquid forging device can realize the liquid forging process of a horizontal mold surface forging and a vertical mold surface forging by the opening and the closing control dies of a lower topping cylinder of the universal oil hydraulic press.

The invention relates to an automatic langrage feeding device of a nail shooting device. The automatic langrage feeding device comprises a body. The body comprises a shell and a firing pin base, a reset spring is arranged between the firing pin base and the shell, and the body is provided with a popup window. The body is provided with a hole, and a pin is arranged in the hole. A langrage groove is formed in the firing pin base. The firing pin base is provided with a mounting base, and a shifting fork and the mounting face are in rotary connection. Magnets are arranged on the mounting face. A front fork and a rear fork are arranged on the shifting fork. An overall lifting margin exists between the front fork and the mounting face. The rear fork and the pin match to achieve linkage. The automatic langrage feeding device has the beneficial effects that an original firing pin base structure is improved, the shifting fork is driven by power to alternately rotate through reciprocating motion of the reset spring, and therefore a langrage band is stirred to move, the action synchronism of a langrage shifting mechanism and the nail shooting device is good, and continuous operation can be achieved without human intervention. In addition, parts to which the improvement relates are small in size and light and are all internally arranged, the peripheral size of the whole nail shooting device cannot be increased, and added weight can be neglected.

The invention combines a magnetic field control technology and a rolling technology, is applied to rolling processing of the inner surface of a long and circular tube, and belongs to the field of special processing. A magnetic rolling processing device for the inner surface of the long and circular tube comprises an external magnetic field generator located outside the long and circular tube and amagnetic rolling tool located inside the long and circular tube; the external magnetic field comprises external magnetic circuit magnetic poles; and the external magnetic circuit magnetic poles forma rotating magnetic field through circumferential rotation and perform axial feeding along the central axis of the long and circular tube to drive the rotating magnetic field to perform axial feeding.By the aid of the device, the problem that rolling processing of the inner surface of the long and circular tube cannot be completed through traditional rolling processing is solved.

Provided is a sealed electric cooker, pertaining to the field of household cookers.The sealed electric cooker is characterized in that the position between a pot cover (5) and a pot body (1) is sealed; a retractable locking mechanism used for locking the pot cover (5) and the pot body (1) is arranged between the pot cover (5) and the pot body (1); the pot cover (5) is provided with an exhaust seal valve (4) communicating the pot body (1) with the air; the exhaust seal valve (4) is controlled by temperature so that exhaust is achieved; pressure can make the pot body (1) sealed when the pot body (1) reaches at certain temperature; ventilation is achieved when pressure of the pot body (1) is lower than the above pressure; and a safety valve (7) is arranged on the pot cover (5).The sealed electric cooker has following beneficial effects: air can be exhausted when water temperature increases to the boiling state; when saturated steam reaches certain pressure, the exhaust seal valve is sealed; when the saturated steam is condensed to water, the exhaust seal valve is opened; and by absorbing air in the pot, temperature for water, rice and saturated steam in the pot body can be up to 105-120 DEG C so that rice can be heated in an all-round way.