SU376818A1 - MACHINE FOR WINDING ELECTRIC COILS - Google Patents

Description

one

The invention relates to process equipment for manufacturing electric coils and can be used in the electronic and instrument-making industries.

A known machine for winding compact frameless electric coils, in which the winding device is made in the form of two coaxially arranged spindles, inside one of which is installed a coil mandrel that is spring-loaded in the axial direction, protruding from its end and abutting against the end of the second spindle, and one of the spindles in a rotary holder, which performs a circular motion when the coiled-up coil is removed, with the simultaneous rotation of the said spindle around its axis.

However, the known machine cannot be used for winding low-layer frameless coils, for example, 2-4 layers, with a wire of 0.02-0.04 mm, because when winding such coils after the mandrel is detached from internal turns and the mandrel is drowned in the spindle, the coil turns out to be without an internal bearing surface, as a result of which, if it is separated from the ends of the spindles, delamination of the coils and deformation of the coil are inevitable. In addition, due to the sticking of the inner end coils in the area of the drowning of the mandrel possible marriage during removal and multilayer coils.

The purpose of the invention is to preserve the geometric shape of frameless coils when they are

removal after winding.

The goal is achieved by the fact that each of the spindles contains a head with replaceable detachable jaws attached to sliders equipped with podzhpnymi

springs and connected with rollers mounted inside spindles.

FIG. 1 shows a machine for winding electric coils, general view; in fig. 2 is a section along A-A in FIG. one; on

FIG. 3 is a section along BB in FIG. one.

The machine contains two spindles 1 and 2 located coaxially. At the end of the spindle 2 installed mandrel 3.

Each of the spindles / and 2 is equipped with heads 4, 5, attached to the spindle m with screws 6. Each of the heads 4 and 5 has two replaceable detachable jaws 7, 8, attached by screws 9 to the sliders 10, It with gland springs 12, 13.

Inside the spindles I, 2, rollers 14, 15 are arranged with wedges 16, 17 pressed into them to extend the jaws 7, 8 by means of sliders 10, 11 in the radial direction in the plane perpendicular to

The axles of the spindles I, 2. The ends of each of the rollers t 14 and 15 are mounted in electromagnets 18, 19 located on columns 20, 21 and serving to move the rollers r t to the extreme left and right positions. Between the rollers-shafts 14, 15 and shpindki 1, 2 there are sockets in which the springs 22 are installed to return the rollers-sh to their original position. In each of columns 20 and 21, an actuator is mounted to ensure the synchronous rotation of spindles 1, 2. The actuator consists of two pairs of gears 23, 24 and 25, 26 of shaft 27 and pulley 28. Shaft 27 and spindles 1, 2 located inside columns 20 and 21, mounted on ball bearings 29, 30. / The columns 20 and 21 are located on a bracket 31 which is attached to the table of the coiler. The device works as follows. Preliminarily, the mandrel 3 with the required diameter is installed at the end of the right roller 15 and the two pairs of jaws 7 and 8 corresponding to the size of the mandrel are attached to the sliders JO and 11 heads 4 and 5 of spindles 1 TL 2. and include a machine drive (not shown), which, through pulley 28, shaft 27 and gears 23, 24, 25, 26, transfers synchronous rotation of spindle m 1 and 2. Spindles rotate to wind the wire impregnated with compound or lubricated glue in the process of winding on Rawka 3. At the end of the winding is produced on the device t suschku coil, for example, connecting it to the predetermined time corresponding to a current source. To remove the coiled and wound coil, they include electromagnets 18 and 19, under the action of which the rollers move 14 15 ′ to the left and right positions, which causes the mandrel 3 to exit from the winding zone and the jaws 7, 8 to move away from the mandrel in the radial direction . At the same time, restricting the freedom of movement of the coil by the mandrel and the jaws at the moment of its detachment from the mandrel and the jaws and the inability to grip the inner end coils of the radially diverging jaws from the mandrel ensures high-quality removal of the coils. At the end of the removal of the coil, the electromagnets 18 and 19 are turned off, as a result of which, under the action of the springs 22 and 12, 13, the rollers 14, 15 together with the mandrel 3 return to their initial position, and the sliders 10, 11 and the jaws 7, 8 are shifted to tight crimping jaws of the mandrel 3, after which the process is repeated. The subject of the invention. An electric coil winding machine comprising two coaxially arranged spindles, inside one of which a winding mandrel is installed, characterized in that, in order to preserve the geometric shape of frameless coils when they are removed after winding, each of the spindles contains a head with replaceable detachable jaws, attached to sliders fitted with gland springs and connected with rollers mounted inside spindles.

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