SU748688A1 - Machine for stretching and moulding electric machine windings - Google Patents

Description

(54) MACHINE FOR STRETCHING AND FORMING WIPES OF ELECTRIC MACHINES

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The invention relates to manufacturing equipment for the manufacture of electrical machines and can be used in electrical engineering industry.

A known machine for stretching electric machines, comprising a housing, mechanisms for fixing the frontal and groove parts of the winding, the stretching mechanism and the drive 1).

However, the known machine does not provide for winding molding as a result, additional leveling devices are required.

Also known is a machine for stretching and forming windings of electric machines, comprising a housing, a stretching mechanism, a mechanism for fixing groove parts and forming patterns with their drive 2. This technical solution is closest to the invention in its technical essence and the achieved result.

The disadvantage of this device is that the shape of the templates are tapered and mounted on the carriage, on. which fixes the head of the coil due to this, it is impossible to obtain exact times, measures of the frontal parts and heads of the heads, which reduces the quality of the manufactured electric machines.

The purpose of the invention is to improve the quality of manufacturing

jQ electric cars.

The goal is achieved by forming the cores coaxially, one of the templates associated with the drive, and the other fixed, on the working cylindrical surface of the template, there are cutouts along the edges to accommodate the groove parts of the windings, and on the side of the winding parts tapered bevels. Mechanism 20 for fixing one side of the slot portion of the winding are located on: fixed and movable patterns.

Fig. 1 (a, b) shows the proposed machine for stretching and forming. coils of electrical machines; FIG. 2 is the same, VIEW in the plan; FIG. 3 shows the position of the forming patterns in the HCXOJ LM position; in FIG. 4, the same in the final position; Figure 5 shows the design of the movable forming patterns; Figure 6 shows the structures of the fixed forming patterns.

The stitch for stretching and forming windings of electric machines consists of body 1, working hydraulic cylinders 2 fixed on base frame 3 with fixed templates 4 / mandrel 5 with moving chalons 6 connected with base frame 7c fixed to the ends of the fixing units of the frontal part 8. Forming patterns 4 and b are aligned. To fix the turns of the boat 9 in the initial position, the plates 10 are fixed on the templates 4 and b, and in the base 3 and the mandrel 5 there are sliding fingers 11.

Patterns 4 and b are made of each of the two halves with the possibility of rearranging them along the axis of the coil, which makes it possible to form coils of different lengths on one of the templates. From the positioning of the frontal parts on the forming: templates, conical bevelings 12 are made. In the moving templates b, a figurine is positioned at 13, which serves to form a radius transition between the half-rolls of the coil.

The machine works as follows.

A boat 9 is installed between the mandrel 5, the base 3 and the lugs 8, and fix the groove of the cup with the fingers 11 of the base and mandrel.

Under the action of the hydraulic cylinders 2, the mandrel 5 begins to turn clockwise (Fig. 3). The template axes are located eccentrically to the axis 7 of the turn, so that when the mandrel 5 is turned, a simultaneous radial approach of the half-turns of the boat takes place and at the end of the turn they occupy the position specified by the drawing. At the same time, the half-turn of a child forms on opposite templates and obtains a given shape.

To remove the coil from the machine, the fingers 11 on the base 3 are retracted, under the action of the hydraulic cylinders 2, the mandrel 5 with the finished winding returns to its original position. After removal of the fingers 11 on the mandrel 5, the coil is removed from the mandrel.

The invention allows to improve the quality of manufactured electrical machines.

Claims (2)

1. Mechanization of the production of electrical insulating materials, insulation winding and drying propion works. Collection, ed. N.I.Hamayunova. M., Gbsznergoizdat., 1961, p.59-64 2. USSR author's certificate for application no. 2341727/24-07, 04/02/76.