SU1436205A1 - Apparatus for making slot insulation components of different lengths - Google Patents

Abstract

The invention relates to electrical engineering and can be used in assembling a winding with a magnetic conductor. The goal is to increase productivity and improve quality by ensuring the accuracy of the geometric dimensions of the elements of the slot insulator. For this purpose, the mechtism of the broach contains a crank mechanism, a gear rack and a pair of gears, an overhanging gear 9, performed at the same time with gear 8, a carrier 10, connected by a key with an overrunning clutch, a high-speed electromagnetic clutch 11, Driving discs of the overhang The couplings are fastened to the ledges of the carrier 10. The coupling 11 is mounted on the drive shaft 30 of one of the profiling rollers .27. In addition, the pulling mechanism is equipped with a control element including disk interrupters mounted on the central shaft of the device. VA, and contactless sensors that can interact with the I1 electromagnetic clutch and actuators. The device increases productivity and ensures high accuracy of the geometric dimensions of the code insulation elements. 6 Il. ffi (L

Description

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The invention relates to electrical engineering and can be used in mechanized laying and wedging of windings into the stator cores of electrical machines.

The goal of this is to increase productivity and improve quality by ensuring the accuracy of the geometric dimensions of the elements of the groove insulation.

FIG. 1 shows the device; FIG. 2 is a view A of FIG. in fig „3 - section bb in fig, 1; FIG. A is a view of FIG. 3; Fig, 5 - section GG on fig.Z; figure 6 - time "cut DD in Fig, 2.

The device contains a pulling mechanism 1, a mechanism 2 segments, a mechanism 3 for forming and transferring wedges into a cassette, a mechanism 4 for turning the cassette, a frame 5 on which all the mechanisms are located.

The pulling mechanism contains a drive crank mechanism 6, a toothed rack 7, gear 8, gearing coupling 9s made integral with gear 8, driven 10, connected by a key with free-wheeling coupling 9, a high-speed electromagnetic coupling M, whose drive disks are linked to the ledges iO, breakers 12 and 13, which are sector discs of aluminum sheet, are placed on aluminum hubs mounted on the central shaft 14, and non-contact electrical sensors 15 and 16.

The cutting mechanism contains a cam drive 17, which swings the lever 18, the stud 19, the rod 20, and the cutting knife 21, the forming mechanism contains a coorder 22, a set of shaping rollers, guides 23 and 24, rolling up 25 and 26 and forming 27 and 28 gear rollers 29, air shaft 30, guide 31. Roller 27 is mounted on shaft 30,

The mechanism of wedging the wedges into the cassette contains a drive cam mechanism 32, traverse 33, rods 34, pusher 35, guides 36,

The cassette rotation mechanism comprises a cam drive mechanism 37, a lever 38, a swing axis 39, an earring 40 and and a dog 41,

The drive device consists of an electric motor 42, pinion 43, driven gears 44 and 45, having

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the same number of teeth and rotating synchronously

Installed on the central shaft; the count of the count of 46 the number of revolutions of the device, working complete with sensor 47,

Gears 45 and 44 are connected to pinion 43 so that the drawing and shaping operations are performed during the first 180 turns of the central shaft, and the operations of cutting and transferring parts to the cassette for the second half of the rotation of the central shaft.

The drive cams of the mechanisms are mounted on the central shaft so that the operations of cutting and transferring parts of the cassette are performed alternately and the rotation of the cassette is carried out in parallel with the drawing and shaping. Pauses during the movements of the mechanisms.

The device works as follows.

After the specific program for manufacturing and transferring parts to the cassette is selected using the control circuitry, the electric motor 42 is turned on and driven through gear 43 by a crank-and-rod mechanism drive 6 and the central shaft 14. The rake 7 is returned - accessible movements and rotates gear 8, Overrunning - clutch 9 transfers the rotation to the carrier 10 only when the rail moves in one direction, which ensures a pause (in 180) of the mechanisms installed on the central shaft. The carrier 10 is associated with a high-speed electromagnetic clutch 11, which instantly turns on at the moment when the corresponding disk interrupter begins to pass by the electrical sensors 15 or f) and instantly turns off as soon as the interrupter plane ends.

The magnitude of the covering angle of the breakers determines the duration of the clutch engagement.

From the electromagnetic clutch, the rotation is transmitted to the forming rollers 27 and 28, connected for synchronous rotation by gears 29, the Forming rollers through the material strip 48 transmit rotation to the fastening rollers 25 and 26 and the guides 23 and 24 to the rollers.

The guide rollers are designed for precise orientation of the tape relative to the position of the remaining parks, the zigzuyushchie put on the tape small smooth grooves across the width of the back of the part, facilitating the molding and preservation of the profile of the part during transport and especially when the winding is sticking in the stator.

The design of the forming rollers assembly (Fig. 6) allows, when rolling, to close the profile of the part and obtain the same height of both shelves, which increases the quality of the parts produced and the reliability of the mechanism.

The profiled blank along the guides 31 moves into the guides 36, the axis of arrangement of which is exactly opposite the axis of the slot of the cassette.

Further, in accordance with the cyclogram of operation of the device (Srig. 7), the workpiece is cut off and the finished part is installed in a cassette by a transfer mechanism. A characteristic feature of the transfer mechanism is that there are large gaps (0.1-0.2 mm) between the pusher 35, the restrictive surfaces of the grooves of the guides 36 and the cassette, and the walls of the material of the part. performance and reliability of his work.

In addition, an increase in the gaps between the parts makes it possible to reduce the accuracy of their manufacture, to reduce their cost as compared to the parts of the punching mechanism.

The length of the manufactured parts of the elements of the slot insulation is clearly defined. This is made the value of the covering angles of the phase breakers, which can be easily changed by turning the breaker mounted on the shaft with a terminal clamp relative to the corresponding sensor.

The disk choppers have a low inertial mass, since they are made from a thin aluminum sheet and mounted on an aluminum hub.

The operation of the device is controlled by an electrical control circuit, which uses commercially available logic electronic devices - controllers, in which a specific program for the manufacture and installation in a cassette is put in any sequence of parts.

different lengths depending on the layout of the stator winding of the motor.

The account of manufactured parts is maintained by means of a flag 46 and a sensor 47. Omissions in the manufacture and laying of parts; carried out by turning off the electromagnetic

couplings on command from the electrical circuit.

The use of the proposed device improves productivity and ensures the accuracy of the geometric dimensions of the manufactured

details and allows preserving the shape of their profile in cross section, which improves the quality of manufactured products.

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A device for the manufacture of slot insulation elements of various lengths, including a central shaft with knuckles fixed on it, Ø13M of an insulation tape with a crank-connecting rod mechanism, a slot insulation molding element, and a slot insulation element B transfer mechanisms the cassette and rotation of the cassette driven by the central shaft, characterized in that, in order to increase productivity and improve quality 1 by ensuring the accuracy of the geometrical dimensions of the elements of the slot insulation, the fur The shaping anism is made in the form of a set of profiling rollers, one of which is leading and mounted on a shaft, the drawing mechanism is equipped with a gear rack-gear pair, an overrunning clutch placed inside the gear and a carrier rigidly connected to it, with ledges at one end mounted inside the overrunning clutch and fastened with it by an electromagnetic clutch mounted on the shaft of the driving profiling roller and rigidly connected with the protrusions of the carrier and the control element made in the form of contactless elec ble sensors and disk prershateley, the disc breaker mounted on a central shaft, and proximity sensors have the ability to interact with an electromagnetic clutch and disk chopper mi.

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Claims (1)

Claim A device for the manufacture of grooved insulation elements of various lengths, including a central shaft with fists fixed on it, a mechanism for drawing insulating tape with a crank mechanism, a mechanism for forming grooved insulation elements, cut-off mechanisms for transferring grooved insulation elements to the cassette and turning the cassette with drive from central shaft, characterized in that, in order to increase productivity and improve quality by ensuring the accuracy of the geometric dimensions of the elements of the groove insulation tion, the molding mechanism is made in the form of a set of profiling rollers, one of which is the leading one and mounted on the shaft, the broaching mechanism is equipped with a gear pair of a rack-pinion, an overrunning clutch located inside the gear and rigidly connected to it with a carrier, at one end of which protrusions are made, mounted inside the overrunning clutch and fastened with it, an electromagnetic clutch mounted on the shaft of the leading profiling roller and rigidly connected with the protrusions of the carrier and a control element made in the form of contactless electrical sensors and disk choppers, with disk choppers mounted on the central shaft, and proximity sensors have the ability to interact with an electromagnetic clutch and disk choppers. b ~ b View in FIG. 5 Fa & .b