SU1265902A1 - Versions of method of manufacturing commutator plates - Google Patents

Abstract

This invention relates to electrical engineering, in particular, to methods for manufacturing electric motor collectors. The purpose of the invention is to increase labor productivity on opposite surfaces of the strip. The method of manufacturing the collector plates includes cutting the collector plates from a strip of symmetric section, the formation of hooks. Axes along the billet form recesses, the cut-out plates are arranged in series with a step equal to the hook length. The hooks are made of wire placed in the recesses of the collector plates and rigidly attached to them. The wire is cut off at the end of the adjacent collector plate so that separate collector plates are formed, 1 hp f-ly, S 13 ill. (L N3 O5 ate with o | C

Description

This invention relates to electrical engineering, in particular, to methods for manufacturing electric motor collectors.

The purpose of the invention is to increase labor productivity on opposite surfaces of the strip.

Option 1 is characterized by FIG. 1-7, and option - FIG. 8-13.

FIG. 1 shows the profile of the strip; in fig. 2 - strip indicating the sequence of cutting the collector plates; in fig. 3 — collector plate obtained; in fig. 4 - profile of the collector plate; in fig. 5 - a sequence of collector plates with attached wire; in fig. 6 - collector plates with hook; in fig. 7 is a view A of FIG. 6; in fig. 8 - strip profile in variant II; in fig. 9 - wire with a loop-like periodic profile; in fig. 10 - strip with wires attached in a checkerboard pattern; in fig. 11 is a strip indicating the sequence of cutting of collector plates with hooks; in fig. 12 — collector plate with a hook; in fig. 13 is a view B in FIG. 12.

The proposed method for the manufacture of collector plates in the first embodiment is as follows.

As a blank, a strip is used that is variable in width, and inins with a symmetrical section (Fig. 1). The strip has recesses 1 on its side surfaces located along the longitudinal axis, for example semicircular, square, rectangular, etc. From strip 2, for example, using a punch, collector plates 3 are cut down, while the strip is fed as shown in FIG. 2. Collector plates (Fig. 3) with the resulting profile (Fig. 4) are placed in series with step 1, where 1 is the hook length. Then, wire 4, e.g. circular, semicircular, rectangular, etc., section is hindered in recesses 1, and is attached, e.g., welded, etc., to the collector plates. After that, the resulting chain is separated, for example, in a stamp, the wire at the edge 5 of the adjacent plate is cut off. In this case, separate collector plates (Fig. 6) are obtained with blanks for hooks 6, which can be given any desired shape.

In variant II, a variable width across the width of the thickness with a symmetrical section (Fig. 8) is also used as a blank. The strip has recesses 7 on its side surfaces located along the longitudinal axis, for example semicircular, square rectangular, etc. Wire 8 (Fig. 9), for example, round, semicircular, rectangular, etc, is used as a blank for hooks. e. sections, which are pre-attached, for example by stamping, a longitudinal loop-like periodic profile, forming protrusions 9, in increments equal to the length of the collector plate. Then, the obtained wires are placed in the recesses 7 of the strip 10 (Fig. 10) on both sides and attached, for example, they are welded, soldered, etc.

in order, so that the projections 9 of the lower wire are in the middle of the projections of the upper wire. Thereafter, collector plates 12 are cut out of the strip with protrusions 11, for example with a tamper, and the strip is fed as shown in FIG. 11. This results in separate collector plates (Fig. 12) with blanks for hooks 13, which can be given any desired shape.

0 The advantage of the proposed method of waste-free manufacturing of collector plates is that hooks can be obtained with significant non-ferrous metal savings due to the absence of waste.

Claims (2)

1. A method of manufacturing collector plates, comprising cutting the collector plates from a strip of symmetrical section relative to the longitudinal and transverse axes, the formation of hooks, characterized in that, in order to increase labor productivity on the opposite surfaces of the strip located perpendicular to its longitudinal axis, along this axis along the billet they form recesses, the cut out plates are arranged in series with a step equal to the length of the hook, and hooks are made of wire placed in the recesses of collectors Astin and rigidly bonded to them, cut off the wire to the end of the adjacent collector plate so that separate collector plates are formed. 2. A method of manufacturing the collector plates, including cutting the collector plates from a strip of symmetrical section with respect to the longitudinal and transverse axes, the formation of hooks, characterized in that, in order to increase labor productivity on opposite surfaces strips arranged perpendicular to its longitudinal axis, along this preform, recesses are formed along this preform, then a wire is taken on which loops are made with a shchag equal to the length of the collector plate, then the wire is placed in the recesses of the collector plates in a slatted order and rigidly attached to them with the formation of hooks, after which the collector plates are cut down. Pro filing / I at a / L7o / lo / e W // L Sh. I ///////// Л fuZ-Z FIG. FIG. five Izl (puz.ff 1 J i i s whether FIG. 9 nodai a forgiveness at state / 2 12U // U7 / Ш Ш, Well Sh Pu2lQ W / 7 - //