Brush wire bundle forming tool

Abstract

The utility model relates to the technical field of conductive slip ring production, in particular to a brush wire bundle forming tool which comprises a welding forming tool and a brush wire bundle. The electric brush is characterized in that the brush wire bundle comprises a tubular bare terminal and an electric brush wire; according to the brush wire bundle, a plurality of electric brush wires are inserted into the tubular bare terminal, and then the brush wire bundle is inserted into the welding forming tool hole. According to the utility model, the red copper with the second heat conductivity in metal is adopted to absorb most heat generated during welding, reduce heat conducted to the lower edge of the tubular bare terminal, and prevent soldering tin from overflowing to the root of the brush wire bundle; the large holes in the welding forming tool play a role in positioning the brush tows, the small holes gather the brush tows, the brush tows are wrapped in the welding forming process, and the brush tows are prevented from diverging after welding.

Description

TECHNICAL FIELD

[0001] The utility model relates to conductive slip ring debugging technical field, concretely relates to a brush silk bundle forming frock. BACKGROUND

[0002] Conductive slip ring is the precision power transmission device of realizing power and signal transmission between two relative rotation mechanisms, is widely used in robot, intelligent production line, radar system etc., and the electric transmission function of conductive slip ring is mainly between rotating part and static part, realizes the transmission of electric signal through wire, sliding friction pair, such as Figure 1 Conductive slip ring is divided into rotating part and static part, and the relative rotation movement of rotating part and static part is driven through mechanical interface, realizes the n±360° unlimited rotation of rotating part and static part, such as Figure 2 The working principle of electric slip ring is that conductive slip ring is supported by bearing in rotating part and static part, forms n±360° unlimited rotation, realizes the power and signal transmission between rotating part and static part by relying on the friction pair between rotating part and static part, and its working principle is shown in Figure 3 .

[0003] The brush silk bundle is composed of a plurality of brush filaments inserted into the pipe type bare terminal hole, and the head is fixed by soldering, in the case of space redundancy, compared with single wire process, only one brush filament is used in each loop, the contact points of brush filament bundle are more, the contact area is larger, the contact pressure with conductive ring is lighter under the condition of guaranteeing reliability, and the friction pair has longer service life, but it is easy to disperse during the production of soldering and forming, and the soldering tin is easy to flow to the lower edge of the pipe type bare terminal. INVENTION CONTENTS

[0004] In order to solve the above problems, the utility model provides a brush silk bundle forming frock.

[0005] The utility model provides the following technical scheme:

[0006] A brush silk bundle forming frock, comprising a welding forming frock and a brush silk bundle, characterized in that the brush silk bundle comprises a pipe type bare terminal and a brush filament.

[0007] Preferably, the brush silk bundle is inserted into the pipe type bare terminal, and the brush silk bundle is inserted into the welding forming frock hole.

[0008] Preferably, the welding forming frock has a brush silk bundle positioning stepped hole, the large aperture and the connection between the large hole and the small hole are chamfered, the insertion has a guiding effect, and the insertion is more convenient and fast; the large hole is matched and positioned with the small gap of the outer circle of the pipe type bare terminal, and the small hole is slightly larger than the inner hole of the pipe type bare terminal, so that the brush silk bundle is gathered and prevented from dispersing during welding and forming.

[0009] Preferably, the solder forming tool is made of red copper, which has only second to silver in thermal conductivity, and heat is transferred to the solder forming tool through the outer circle of the tubular bare terminal, so that most of the heat is absorbed by the brush bundle, and the heat is greatly reduced when it is transferred to the lower edge of the tubular bare terminal, and the temperature is lower than the melting point of solder, thereby avoiding solder overflow to the root of the brush bundle.

[0010] The utility model discloses a brush bundle forming tool, which is characterized in that the solder forming tool is made of red copper, which has only second to silver in thermal conductivity, and heat is transferred to the solder forming tool through the outer circle of the tubular bare terminal, so that most of the heat is absorbed by the brush bundle, and the heat is greatly reduced when it is transferred to the lower edge of the tubular bare terminal, and the temperature is lower than the melting point of solder, thereby avoiding solder overflow to the root of the brush bundle. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings are included to provide a further understanding of the utility model, and constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0012] Figure 1 It is the schematic diagram of the electrically conductive slip ring electric transmission function;

[0013] Figure 2 It is the schematic diagram of the electrically conductive slip ring rotation function;

[0014] Figure 3 It is the working principle diagram of the electrically conductive slip ring;

[0015] Figure 4 It is the structural schematic diagram of a brush bundle forming tool of the utility model;

[0016] The drawings are as follows: 1 is a solder forming tool, 2 is a brush bundle, 2-1 is a tubular bare terminal, and 2-2 is an electric brush wire. DETAILED DESCRIPTION

[0017] The utility model is clearly, completely described in the following combination with the embodiments and the drawings, and the technical effects generated are described, to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other without conflict. It should be noted that when a certain feature is referred to as "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or indirectly fixed or connected to the other feature. In addition, the up, down, left, right and other descriptions used in the utility model are only relative to the mutual position relationship of the components of the utility model in the drawings.

[0018] As Figure 4As shown, a brush wire bundle forming tool includes 1 welding forming tool, 2 brush wire bundle; characterized in that the brush wire bundle includes 2-1 pipe type bare terminal, 2-2 brush wire;

[0019] The 2 brush wire bundle is inserted into the 2-1 pipe type bare terminal, and then the 2 brush wire bundle is inserted into the hole of the 1 welding forming tool;

[0020] The 1 welding forming tool has a positioning stepped hole for the 2 brush wire bundle, and the large aperture and the connection between the large hole and the small hole are chamfered, which has a guiding effect when the 2 brush wire bundle is inserted, making the insertion more convenient and fast; the large hole is matched with the small gap of the outer circle of the 2-1 pipe type bare terminal, and the small hole is slightly larger than the inner hole of the 2-1 pipe type bare terminal, so as to gather the 2 brush wire bundle and prevent it from diverging during welding forming;

[0021] The 1 welding forming tool is made of red copper, and its thermal conductivity is only second to silver, so that heat is first transmitted to the 1 welding forming tool through the outer circle of the 2-1 pipe type bare terminal during welding forming, most of the heat is absorbed by the 2 brush wire bundle, the heat transmission to the lower edge of the 2-1 pipe type bare terminal is greatly reduced, and the temperature is lower than the melting point of solder, thereby avoiding solder overflow to the root of the 2 brush wire bundle;

[0022] Specifically, the device adopts red copper which has the second best thermal conductivity among metals, to share the heat of the brush wire bundle welding forming and reduce the temperature of the lower edge of the brush wire bundle, thereby avoiding solder overflow to the root of the brush wire bundle; the device has a brush wire bundle positioning stepped hole inside, the large hole is matched with the small gap of the outer circle of the pipe type bare terminal for positioning, and the small hole plays a role in gathering the brush wire bundle, thereby avoiding divergence during welding forming; the device specifically relates to a brush wire bundle forming tool, which has the advantages of simple structure, convenient operation, high straightness of brush wire bundle forming without divergence, and extremely low scrap rate, and improves product reliability.

[0023] The above only describes preferred embodiments of the device, and is not used to limit the device, although the device is described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the device shall be included in the protection scope of the device.

Claims

1. A brush filament bundle forming fixture, comprising a welding forming fixture and a brush filament bundle; characterized in that, The brush filament bundle includes a tubular bare terminal and brush filaments. Several brush filaments are inserted into the tubular bare terminal, and then the brush filament bundle is inserted into the hole of the welding forming fixture. The welding forming fixture has a stepped positioning hole for the brush filament bundle. The large hole and the connection between the large hole and the small hole are chamfered, which has a guiding function during insertion, making insertion more convenient and faster. The large hole is positioned with a small gap fit between it and the outer circle of the tubular bare terminal. The small hole is larger than the inner hole of the tubular bare terminal, which gathers the brush filament bundle and prevents it from spreading out during welding forming.

2. The brush filament bundle forming fixture according to claim 1, characterized in that, The welding forming fixture is made of copper, which has a thermal conductivity second only to silver. During welding, heat is first transferred to the welding forming fixture through the outer circle of the tubular bare terminal, where most of the heat is absorbed by the brush filament bundle. The heat transfer to the lower edge of the tubular bare terminal is greatly reduced, and the temperature is lower than the melting point of the solder, thus preventing solder from overflowing to the root of the brush filament bundle.

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