SU875544A1 - Device for orienting magnetic core sheets - Google Patents

Description

The invention relates to electrical engineering technology, in particular, to devices for assembling cores of magnetic cores, and more specifically to devices for orientation of magnetic cores sheets. A device for orienting sheets of a stator core is known, comprising a mandrel, an orienting element in the form of a locking bar, and a cutter. One sheet of stator is given to the rotating head of the mandrel; the latter receive a complex vibrational-vibrating motion until the protrusion of the sheet is fixed by the orienting element. In this device, a packet having parallel ends is received. This is caused by the unevenness of sheet thickness, and the non-parallelism of the ends is due to the fact that the thickened parts of the Sheet, when oriented into a package, are placed one above the other and refined - from the opposite. The disadvantage of the device is the impossibility of obtaining a package of sheets with parallel ends, which reduces quality electric motor as a whole. It is also known to have an orientation for the orientation of sheets of a magnetic conductor, comprising a cylindrical mandrel, an orienting element in the form of a key, placed in the slot of the mandrel, and gauges. The rotating head of the mandrel is fed one by one rotor sheets, the latter receive a complex rotational-oscillatory motion until the groove in the central hole of the sheet is fixed by the orienting element, after which the oriented sheets are lowered onto the fixed part of the orienting mandrel C by the weight. The disadvantage of the device is placing the orienting element on one side of the mandrel, which leads to the impossibility of obtaining cores of magnetic cores with parallel ends. The purpose of the invention is to improve the quality of electric machines by compensating for the uneven thickness of the sheets of the magnetic circuit and ensuring the parallelism of the ends. The goal is achieved by the fact that the device contains a rod with a drive of reciprocating movement along the axis of the mandrel, in

the mandrel has a central hole, and at its free end in the diametral plane there is a groove, the bottom of which is angled to the axis of the mandrel on one side, and perpendicular to the axis on the other, while the stem is located in the central mandrel hole, and the orienting elements are hinged at the free end of the stem and located in the groove

Figure 1 shows the device, a general view; in fig. 2 is a view A of FIG.

The device for orientation of the magnetic core sheets contains a mandrel 1. At the free end of the mandrel there is a groove 2} located in the diametral plane, the bottom 3 of which has areas of the didT, -6- In the mandrel 1 there is a central hole d. The bottom 3 of the groove 2 is located on one side at an angle to the axis of the mandrel, and on the other perpendicular to the axis. The rod 4 is located in the center hole of the mandrel. An axis 5 is fixed at the end of the rod. The orienting elements b and b are hinged on the axis 5. In the lower part of the mandrel 1, calibers 8 are installed on the base 7.

Package 9 of the magnetic circuit consists of sheets 1.0, having a landing diameter O. grooves 11 on the landing (inner; diameter D and grooves 12 on the outer diameter O, the mandrel mounted on the table. 13.

The device for the orientation of the sheets of the magnetic circuit operates as follows.

Moving the rod 4 in the center hole d of the mandrel 1 (drive f.1, not shown), set the axis 5 in one of the fixed positions | or ii. Depending on this position (| or II), the orienting elements b and b are arranged movably mounted on the axis 5. Thus, if the rod 4 moves upwards to the fixed position | One orienting element b is located in the straight section C of the bottom 3 of the groove 2, and the other orienting element b is located on the inclined section of the bottom of the 3 of the groove 2. The orienting elements 6 and b are held in a fixed position due to gravity. With a fixed position | The rod of 4 orientations element has a working position, i.e. protrudes beyond the mandrel 1 and the orienting element b is an inoperative position, since it is located within the envelope of the mandrel 1.

When the rod 4 is moved to the lower fixed position It, the orienting element b is located on the straight section B of the bottom 3 of the groove 2, and the orienting element b is located within the mandrel 1,. Orientation b element occupies a working position, and the orienting element 6 is non-working.

When mounted on the mandrel 1 sheets of bag 9, each sheet 10 of which has a groove 11 on the inner diameter e D, Depending on the position of the orienting elements b and b, the sheets 10 are positioned so that the grooves 11 are oriented to the right or left. In this case, sheets 10 can be installed .. pour on the mandrel 1 by the piece or

bundles (pre-oriented) and each time the position of sheets 10 is determined by the position of the orienting elements b and b.

The orienting elements b and b / o have a different configuration, which makes it possible to fix their guide portions in the working position at one level from the base 7.

Oriented along one of the orienting elements b or b grooves 11, the sheets 10 are lowered down along the mandrel 1, fixed with their grooves 12 located on the outer diameter of 0 meter, caliber B., fixed in

From the bottom of the mandrel 1 on the base 7. The mandrel 1 is located on the table 13. On the mandrel 1, you can assemble a package of sheets 9 with any options for alternating the position of the sheets 10 (right or left by the groove 11 on the inside

0 to the diameter D) of the pre-already oriented sheets 10, followed by transferring the package to the fastening operation, or initial orientation of the sheets 10, feeding them one by one onto the mandrel 1, previously giving it a forced rotation around its own axis (the rotation mechanism is not shown in Fig. 1 ). When removing the package 9 from the mandrel 1

0 orientator element b or b, which is in the working position, is lifted by sheets 10, which do not have grooves 11 on this side, and does not complicate the operation of removing the bag 9 s.

- mandrels (another orientation element b or b at this moment does not stand for the envelope of the mandrel 1).

The device makes it possible to compensate for the uneven thickness of the Q sheets of the package by rotating the parts of the package or individual sheets on the IBO to each other, which eliminates the non-parallelism of the ends of the finished core.

Claims (2)

Invention Formula A device for orientation of magnetic core sheets, comprising a cylindrical mandrel, orienting elements placed on the mandrel and calibers, characterized in that, in order to improve the quality of electric machines by compensating uneven thickness of the sheets of the magnet package and ensuring parallelism of the ends, contains a rod with a reciprocating movement along the axis of the mandrel, in the core there is a central hole and on the free, its end in the diameter plane is a groove, the bottom of which is at one side at an angle to the axis of the mandrel, and on the other - perpendicular to the axis, with the stem located in the central hole of the mandrel, and the orienting elements are hinged on the free end of the stem and located in the groove. Sources of information taken into account in the examination 1. Works of the All-Union Scientific Research and Design Institute of Technology of Electrical Machinery and Apparatus Engineering. Ex 9. M., Energie, 1971, p. 126-127. 2. Works of the All-Union Scientific Research and Design Institute of Electrical Machinery and Apparatus Technology. Issue W. M., Energie, 1965, p. 97.