Method for flower-editing, transposition and molding of electric machine bar line stick end

Abstract

The invention relates to a method for transposition forming of one end of a bar of a motor and belongs to the technical field of motors. The method comprises the following steps of 1. wire arrangement, in which (1) upper-layer bar copper wires and lower-layer bar copper wires are separately placed on a platform and (2) a wire arrangement board is fixed on the surface of a worktable and the arranged copper wires are fixed by a wire arrangement fixture; 2. pressure bending, in which a hydraulic pressure bending mode is adopted to bend the copper wires; 3 combining, in which the bent copper wires undergo transposition, gaskets and rows of the copper wires are insulated when the bar is combined, the middle pitch is processed to the preset standard, and the positions of transposition at both sides are beat out; 4. forming, in which the bar is placed into an upper forming die and a lower forming die, an iron core section part is beat out and is firmly fixed in a sizing die by the back of a wedge block, an end corner R is subject to simmer bending, then a leading wire R is subject to simmer bending, and the bar is beat out to be attached to the forming dies; and 5. colloidization among strands, in which the bar is placed into a colloidization model for colloidization molding to finish the transposition forming of one end of the bar. The method has the advantages of simple process, good bar effect, flat appearance, small gross weight of a motor, high efficiency and so on.

Description

technical field [0001] The invention belongs to the technical field of motors, and in particular relates to a braiding transposition forming method at the end of a strip-shaped wire rod of a motor. Background technique [0002] At present, the braiding and transposition molding method at the end of the motor strip wire rod includes the steps of arranging wires, bending, and forming. Due to technical defects such as the previous shaping process, manual bending, and irregular forming, especially when the pitch of the bar-shaped wire rods is small, the end of the lower-layer wire rods has a large rising angle and the braiding transposition, the gap between the strands of the wire rods After gelling, inter-strand short circuit is easy to occur, the R corner of the end is not pressed firmly, and the amount of scrapped wire rods is large, resulting in waste and other problems. Contents of the invention [0003] In order to solve the technical problems existing in the known tech...

AI Technical Summary

Problems solved by technology

Due to technical defects such as the previous shaping process, manual bending, and irregular forming, especially when the pitch of the bar-shaped wire rods is small, the end of the lower-layer wire rods has a large rising angle and the braiding transposition, the gap between the strands of the wire rods After gelling, it is easy to have inter-strand short circuit, the R corner of the end is not pressed firmly, and the amount of scrapped wire rods is large, resulting in waste and other problems.

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