SU1115170A1 - Method and apparatus for manufacturing sections of rigid winding and placing these sections in slots of magnetic circuit - Google Patents

Abstract

1. A method of manufacturing rigid winding sections and placing them into the grooves of a magnetic circuit, including laying winding loops into longitudinal grooves of concentricly arranged drums, stretching loops to form grooves and frontal winding parts by turning one of the drums relative to the other, outputting sections from the drums grooves, fixing them in the transfer mechanism and installation in the grooves of the magnetic circuit, characterized in that, with the aim of improving the quality of the manufactured products by providing a specified distance between the frontal parts of the tions, simultaneously with stretching zhkoy loops forming derivative t coil ends by fixing Heads coil ends and the coil ends in the movement direction of the groove part sections. 2. A device for producing hard winding sections and their placement into the grooves of a magnetic core, comprising a winding loop stretching mechanism, made in the form of concentrically arranged hollow outer and inner drums with longitudinal grooves, the outer of which is rotatable relative to the inner drum, and a transfer mechanism sections and placing them into the grooves of the magnetic circuit, characterized in that, in order to improve the quality of the manufactured products, by ensuring (a specified distance between the small parts of sections, it contains the C mechanism for forming frontal parts (made in the form of a cage with radial; grooves to accommodate the heads of the frontal sections, a conical mandrel with guide elements mounted above the end surface of the inner drum from the position of the frontal parts of the sections reciprocating movement along the axis of the drums, and a lock for fixing the mechanism for shaping the frontal parts relative to the inner drum; the mechanism for stretching the sections is provided with a concentric about raspolozhennv (and the outer and inner sleeves with longitudinal grooves defined in the outer drum concentrically to it by the positioning of the ends of the sections, and technological pins arranged at one end in bushing grooves, and other - in the slots reels,

Description

This holder is installed in the guide elements of the conical mandrel and is spring-loaded to it, the sleeves are installed with the possibility of joint.

reciprocating movement along the axis of the drums and the outer sleeve - with the possibility of joint rotation with the outer drum.

The invention relates to technology and technological equipment for the manufacture of windings of electrical machines and can be used in the electrical industry.

A known method of manufacturing coils of a hard winding with a straight head in the frontal part, according to which these coils are pre-wound on templates (boats) on special winding machines, then stretched, after which the finished coils are laid in the slots of the C13 magnetic circuit. x, which can not provide uniform gaps between the turns in the frontal part and high performance.

A device for stacking single-turn sections into grooves of magnetic circuits of electrical machines is known, comprising a mechanism for forming sections consisting of two cylindrically arranged cylinders with longitudinal grooves relative to each other, and a mechanism for transferring sections from the molding mechanism to the grooves of the C2J magnetic circuit.

However, the known device does not provide uniform gaps between the frontal parts of the sections.

The closest to the invention in its technical essence and the achieved result is a method of manufacturing rigid winding sections and placing them in the magnetic core grooves, including laying the winding loops into the longitudinal grooves of coicentrically located drums, stretching the loops to form the winding and front winding parts of the winding drums relative to the other, the output sections of the grooves of the drum their fastening in the transfer mechanism and the installation in the grooves of the magnetic core.

However, the known method does not provide high quality windings, since it lacks the operation of forming the frontal part, thereby

interturn closures due to uneven gaps in the windings of the frontal part are not excluded.

The closest to the invention to the technical essence is

A device for the manufacture of rigid winding sections and their installation in the grooves of the magnetic circuit, comprising a mechanism for stretching the loop of the obmotdsi, made in the form of concentrically arranged

hollow outer and inner drums with longitudinal grooves, the outer of which is rotatable relative to the inner drum, and the transfer mechanism

section. and laying them in the grooves of the magnetic circuit.

However, the known device does not provide high quality, since there are no elements for shaping the frontal part of the winding, which would ensure its optimal shape with maximum spacing gaps. In addition, the winding is pulled out from the moving cylinders and is carried out by force on the frontal part of the sections, which does not exclude damage to the conductors.

The aim of the invention is to improve the quality of the manufactured,

LIU by providing a predetermined distance between the frontal parts of the sections and avoiding damage to the wire, i The goal is achieved

According to the method of manufacturing the hard winding sections and their placement in the grooves of the magnetic core, including laying the winding loops into the longitudinal grooves of the concentric drums, stretching the loops to form grooves and frontal

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winding parts of one of the drums relative to the other, removing sections from the grooves of the drums, fixing them in the transfer mechanism and inserting the magnetic cores into the grooves, simultaneously with stretching the loops, make the frontal parts by fixing the heads of the frontal parts and moving the frontal parts in the groove direction parts of sections.

The goal is achieved in the same way. the fact that the device for producing hard winding sections and their laying into the grooves of the magnetic circuit contains a mechanism for stretching the winding loops made in the form of kentricheskoe located hollow outer and inner drums with longitudinal grooves, the outer of which is rotatable relative to the inner drum , and the mechanism for transferring sections and placing them into the grooves of the magnetic circuit, contains a mechanism for molding the frontal parts, made in the form of a cage with radial grooves for accommodating the heads of the frontal parts with cc, a conical mandrel with guide elements mounted above the end surface of the inner drum on the side of the frontal sections, with the possibility of reciprocating movement along the axis of the drums, and a lock for fixing the mechanism for shaping the frontal parts relative to the internal drum; outer and inner sleeves with longitudinal grooves installed in the outer drum concentric to it from the side of the sec , and technological pins placed at one end in the grooves of the sleeves, and the other in the grooves of the drums, while the holder is installed in the direction of the elements of the conical mandrel and is spring-loaded to it, the sleeves are installed with the possibility of joint reciprocating movement along the axis of the drums, and outer sleeve with the possibility of joint rotation with the outer drum.

FIG. 1 shows a device for manufacturing hard winding sections and their placement in the slots of a magnetic circuit, a general view; in fig. 2 shows section A-A in FIG. Ij in FIG. 3 - section forming mechanism, in section; on

51704;

FIG. 4 — section manufactured; in FIG. 5 is a section BB in FIG. 3; figure 6 - section bb In FIG. 3; on / fig. 7 is a diagram of mechanisms for stretching the loops and shaping the frontal part of the winding, in a position prior to stretching the loops; in fig. 8 - the same, after stretching the loops; in fig. 9 - front part of the winding section.,

o The device for the manufacture of sections, rigid windings and their placement in the grooves of the magnetic circuit (Fig. 1) contains the mechanism 1 for stretching the loops of sections 2, the mechanism 3 for shaping the frontal parts, the mechanism 4 for transferring sections from the mechanism for stretching the loops into the slots for the magnetic circuit and the drives 5 and 6 of the forming mechanism; sections, and the drive 7 of the transfer mechanism sections, which operate from the press 8.

The mechanism 1 for stretching the loops is inclusive. The outer 9 and 10 inner drums are concentrically located with longitudinal grooves for placing

, in them sections. The inner drum 10 is stationary, and the outer drum 9 is rotated relative to it by means of a drive 6. Inside the outer cylinder 9f, the outer 11 and inner 12 are mounted concentrically;. sleeve with longitudinal grooves, respectively. cylinder slots in which technological pins 13 and 14 are placed, respectively, installed at one end in the external grooves

5 and the inner bushings, and others in the grooves of the outer and inner drums. The sleeves 11 and 12 are articulated with each other by means of the ring 15. The pins 13 and 14 are fixed in the sleeves by sectors 16 and 17 and separated by a sleeve 18. The outer sleeve 11 is installed inside the outer drum 9 on the key 19, and the inner sleeve 12 is connected to its drive back -accessible movement along the axis of the drums. The movement of the vtul is regulated by a stop 20 installed in the slot of the outer drum 9.

The extension of the stop 20 is carried out

0 with spring-loaded strip .21. The upper limit of movement of the sleeves is limited by a stop 22 installed in the inner drum.

On the outer surface of the outer

5 of the drum 9, an axis is mounted with a roller 23 moving in the inclined groove of the cam 24 when the outer drum 9 rotates in the housing 25 mounted on the bearings 26 and 27. The mechanism 3 for shaping the frontal parts mounted on the swing arm is not fixed on the press case with the possibility of movement along the axis of the drums, contains a sleeve 28 with radial grooves for placing heads of sections in them, a conical mandrel 29 with guides 30 and a flange 31. The holder is mounted on the guides of the conical mandrel and is spring-loaded to There are springs 32 in it. A lock 33 with a spring 34 and a handle 35 is fixed in the central opening of the cage to secure the mechanism for forming the frontal parts relative to the inner cylinder. The mechanism 4 of the transfer section 2 consists of a disk.36 with radial grooves, in which the cams 37 are installed with the fingers 38 placed in the grooves 39 of the cochlea 40 mounted on the disk. The snail is rotated by the handle 41. The transfer mechanism is raised and lowered from the drive 7. The device operates as follows. A cassette (not shown) with recruited billets of sections 2 is installed and fixed on the upper end of the Outer drum 10, after which the billets are pushed into the grooves of the outer 9 and inner 10 drum with the help of the press slide 8. Then. parts and locks on the inner drum, with the heads of the frontal parts of the section blanks entering the radial grooves of the yoke. The transfer mechanism is lowered and the pressure on the flange 31 is lowered, while the conical mandrel 29 is lowered to the end of the external drum 10, the front parts of the section blanks are turned on. The DRIVE b is turned on, and the external drum 9 is rotated relative to the section wiring angle, and the roller 23, moving in the groove of the cam 24, provides axial movement of the outer drum with sections to compensate for stretching of the sections. In the process of stretching sections 2, the yoke mechanism 28 of the forehead shaping part 0 under the action of the springs 32 follows the frontal parts moving downward at a distance D5, which ensures a given shape of the frontal part with a straight head section at length t and maximum gaps 6 between the turns (Fig. 4, 7 -.9). The amount of lowering the cage 28 depends on the step-and dilution sections. The mechanism for shaping the frontal part is retracted. - Next turn on the actuator 5, under the action of which the bushings 11 and 12 with technological pins 13 and 14, moving up, preliminarily partially push the sections out of the drums to a height limited by the stop 20. Then lower the section transfer mechanism, which presses on the bar 21, whereby the abutment is removed from the cavity of the drum. The knob 41 converges the cams 37, and thereby secures the winding sections of the B slot part. The actuator 4 is turned on and sections 2 are finally pushed out of the grooves of the drums, moving them in the cams to a predetermined position, i.e. the long ends of the branches should extend beyond the cam area by the calculated value. After this, the sections are finally clamped with cams and raised. The stator is installed and fixed on the upper end of the inner drum 10, after which the transfer mechanism is lowered and the sections are pushed into the grooves of the stator with a press slider. The sections are freed from the clamping by cams, and the transfer mechanism is returned to its original position. This cycle of operation of the device ends. The use of the invention allows to obtain uniform gaps between the turns in the frontal part of the winding due to the fact that the mechanism for shaping the frontal parts follows the process of stretching the sections and reduces damage to the conductors by first pushing them out of the cylinders. In addition, the invention improves productivity, since the molding of the frontal part of the winding is combined with the stretching of the sections and is carried out automatically.

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Claims (2)

1. A method of manufacturing sections of a rigid winding and their laying in the grooves of the magnetic circuit, including laying the loops of the windings in the longitudinal grooves of concentrically arranged drums, stretching the loops to form groove and frontal parts of the winding by turning one of the drums relative to another, withdrawing the sections from the grooves of the drums, securing them transfer mechanism and installation in the grooves of the magnetic circuit, characterized in that ^ in order to improve the quality of manufactured products by ensuring a given distance between the frontal parts of the sections, one simultaneously with stretching the loops, the frontal parts are formed by fixing the heads of the frontal parts and moving the frontal parts in the direction of the groove parts of the sections. 2. A device for the manufacture of sections of the rigid winding and their laying in the grooves of the magnetic circuit, containing a mechanism for stretching the winding loops, made in the form of concentrically arranged hollow outer and inner drums with longitudinal grooves, the outer of which is rotatable relative to the inner drum, and a transfer mechanism sections and stacking them in the grooves of the magnet wire, characterized in that, in order to improve the quality of manufactured products by providing SU,. „1115170 of the specified distance between the aircraft. sections of the sections, it contains a mechanism for forming the frontal parts ι made in the form of a cage with radial grooves to accommodate the heads of the frontal sections, a conical mandrel with guide elements mounted above the end surface of the inner drum from the side of the frontal sections with the possibility of reciprocating movement along the axis of the drums, and the lock for securing the mechanism for forming the frontal parts relative to the inner drum, the section stretching mechanism is provided with a concentric located outer and inner bushings with longitudinal grooves installed concentrically in the outer drum from the side of the ends of the sections, and technological pins placed at one end in the grooves of the bushings and the other in the grooves of the drums, while the clip is installed in the guiding elements of the conical mandrel and is spring loaded to _{4 of} it, the bushings are installed with the possibility of joint. reciprocating movement. along the axis of the drums, and the outer sleeve with the possibility of joint rotation with the outer drum.