Winding mould mechanism for winding machine

Abstract

The invention discloses a winding mould mechanism for a winding machine. The winding mould mechanism comprises an upper mould and a lower mould which are in central symmetry about a rotating spindle. The winding mould mechanism is characterized in that the upper mould is mounted on an upper base, the lower mould is mounted on a lower base, the outside of each base is connected with an adjusting screw rod in a threaded manner, the outer end of each adjusting screw rod is connected with a screw rod mounting seat positioned on a rotary table of the winding machine through a bearing, the upper base and the lower base are respectively slidably connected on the rotary table of the winding machine through a guide mechanism, and the extension direction of each adjusting screw rod and the guide mechanism is perpendicular to the rotating shaft. The adjusting screw rods are connected with the upper base and the lower base positioned at the bottoms of the upper mould and the lower mould respectively in a threaded manner, so that the distance between the upper mould and the lower mould is adjusted, the requirements of various stator coils on winding are met, and the utilization rate of the winding machine is increased.

Description

technical field [0001] The invention relates to an induction coil winding machine, in particular to a winding mold mechanism of the winding machine, which is mainly used for winding stator coils of high-power three-phase motors. Background technique [0002] Three-phase motor means that when the three-phase stator windings of the motor (each with a phase difference of 120 degrees of electrical angle), a rotating magnetic field will be generated after the three-phase alternating current is connected, and the rotating magnetic field will cut the rotor winding, thereby generating an induced current in the rotor winding (rotor The winding is a closed path), and the current-carrying rotor conductor will generate electromagnetic force under the action of the rotating magnetic field of the stator, thereby forming an electromagnetic torque on the motor shaft, driving the motor to rotate, and the direction of rotation of the motor is the same as that of the rotating magnetic field. ...

AI Technical Summary

Problems solved by technology

[0004]However, as mentioned above, since the distance between the upper and lower molds is fixed (installed on the mold base together, connected by the mold base and the turntable), Depending on the power of the three-phase motor, it is necessary to replace the winding dies of different sizes to meet the requirements of the coil diameter. Therefore, on the one hand, repeated replacement of the winding dies not only reduces the production efficiency, but also increases the labor intensity; on the other hand, it is necessary to Prepare winding dies of different sizes to meet production needs. Inaccurate sizes will cause: ①If the size is too small, the span and end length will be insufficient, making the embedding complicated; ②If the size of the winding die is too large, the It will increase the resistance of the winding and the end leakage reactance, which will affect the performance of the motor. At the same time, it will also waste wires, causing the end of the winding to be too long, which will affect the assembly and ventilation of the motor; this will increase the production cost for the manufacturer, and at the same time require a large Winding mold storage space, especially some high-power stator coil molds

Images