4results about How to "Joint smooth" patented technology

In a method for switching a workpiece (W) fastened to a tray (P1) after a workpiece side (14) has been machined in a horizontal machining machine (M), the tray (P1) is fed into a transfer position (AP) in which the machined side (14) of the workpiece (W) is oriented in the direction of a tray carrier (T), a further tray (P2) is provided, and the workpiece is first transferred to the gripping device (9, 10) of the further tray (P2) in such a way that the machined side (14) faces forward, and is guided together with it into the machine (M) again. In the system (S) for switching, the tray carrier (T) has a positioning mechanism (11), by means of which a semi-machined workpiece (W) can be transferred to the gripping device (9) of the other tray (P2) with the machined side (14) facing forward.

The invention relates to the technical field of vehicle control, and provides a clutch oil pre-charging control method and device. The method comprises the steps that the current gearbox oil temperature, the accelerator pedal opening degree and the clutch front and rear end rotating speed difference of a vehicle are obtained; determining an oil pre-charging step target current of the clutch according to the oil temperature of the gearbox, and determining the step maintaining duration of the oil pre-charging step target current according to the opening degree of the accelerator pedal and the oil temperature of the gearbox; according to the oil temperature of the gearbox and the rotating speed difference of the front end and the rear end of the clutch, the target maintaining duration of the pre-charging oil maintaining target current of the clutch is determined, and the pre-charging oil maintaining target current is the current corresponding to the expected pressure of the clutch; and under the condition that clutch oil pre-charging control activation is detected, the clutch is controlled to maintain the step maintaining duration for the oil pre-charging step target current, and the clutch is controlled to maintain the target maintaining duration for the oil pre-charging maintaining target current. According to the invention, the efficiency and smoothness of the whole switching process are improved.

This invention relates to the field of molding and joining equipment for plastic sheets, specifically to a far-infrared hot-melt overlapping plastic box forming device, comprising a frame, a lower pressure mold fixedly connected to the frame, and a pressing mechanism. The pressing mechanism is disposed above the lower pressure mold and can move in a direction perpendicular to the surface of the lower pressure mold to press the joint of the sheet. A first clamping mechanism and a second clamping mechanism are respectively disposed on both sides of the lower pressure mold, which are used to clamp the two sections of the sheet to be joined. This invention, by fixing the first clamping mechanism and rotatably disposing of the second clamping mechanism, uses a rotating shaft to drive the second clamping mechanism to rotate around the axis, so that the sheet held by the second clamping mechanism automatically changes its spatial posture during the rotation, and drives the unconstrained sheet to move synchronously, thereby automatically converting the sheet from the initial enclosed state to a flat enclosed state that is easy for hot-melt pressing.

This invention provides a dynamic coordinated control method and system for mode switching in methanol-electric hybrid power ships. The upper-level controller acquires real-time status information such as the ship's propeller load torque, methanol engine speed, permanent magnet synchronous motor speed, and the speed difference between the driving and driven ends of the clutch, and determines whether mode switching needs to be triggered. When switching is required, the upper-level controller generates target torques for the engine, motor, and clutch, sending the first two directly to the corresponding actuators, while sending the clutch target torque to the lower-level controller. Upon receiving the clutch target torque, the lower-level controller first calculates the clutch target oil pressure using the torque-oil pressure mapping relationship, then calculates the quasi-steady-state control current component, dynamic feedforward compensation current component, and nonlinear error feedback correction current component, respectively. Finally, the three are added together to obtain the drive current, which is output to the clutch actuator, achieving precise closed-loop control of the clutch oil pressure.