JPH03216982A - Manufacture of sliding brush contact - Google Patents

Abstract

PURPOSE:To obtain a good-quality brush contact at a low cost by intermittently feeding a plate spring material and a bar material from the angle direction at least 0 deg. or above to a horizontal close contact fine wire, pinching the bar material with the plate spring and the horizontal close contact fine wire in sequence, and welding them at a fixed interval. CONSTITUTION:When a plate spring material 9 is fed by a pilot 8, a bar material 2 is fed together with the plate spring material 9 in close contact with the plate spring material 9. A groove to fix the bar material 2 is provided at the position of a plate spring 4 where a horizontal close contact fine wire 1 is to be welded, the movement of the bar material 2 at the time of welding is prevented to facilitate welding, the bar material 2 is pinched between the plate spring 4 and the horizontal close contact fine wire 1, and these three kinds of materials are concurrently welded. A brush contact 3 is pressed and cut to form one brush contact 3, and the brush contact with the final shape is manufactured. The uniform and stable welding strength is obtained, and the good-quality sliding brush contact 3 can be obtained at a low cost.

Description

[Detailed Description of the Invention] "Industrial Icheon Field" The present invention is a home appliance. The present invention relates to brush contacts used as sliding contacts in OA equipment, information equipment, FA equipment, precision equipment, etc.

``Prior Art'' Recently, brush contacts have been widely used as contact parts in microelectronics and mechatronics equipment. These devices require high precision and high reliability, and this brush contact satisfies those requirements because it has multiple points of contact.

However, in order to make this brush contact, there are several tens of microns to several hundred microns.
As many as 2 to 100 thin wires called μ must be welded to the leaf spring. Currently, in order to weld a large number of thin wires to a leaf spring in a uniform and stable state, first, as shown in Figure 1 (A), a support plate 2 is welded to one side of the horizontal close-fitting thin wire l, and the excess parts at both ends are welded. After cutting, the leaf spring 4 and the multi-brush are welded together to form the brush contact 3 as shown in FIG. 1(B).

Alternatively, as shown in FIG. 2, a projection line 7 is provided at the location of the leaf spring 4 where the horizontal close-contact thin wire 1 is to be welded, and the projection line 7 and the horizontal close-contact thin line 1 are projection welded. Since the projection 7 of the leaf spring 4 plays the same role as the support plate, uniform and stable welding strength can be obtained at the welding location.

``Problems to be solved by the invention'' Therefore, in order to make one brush contact, it is necessary to perform two weldings, or one welding is sufficient, but since there is no support plate, it is necessary to weld It is difficult to get the impression that there is a high degree of reliability.

If it were possible to make a brush contact that can obtain uniform and stable welding strength with one welding process and has a high degree of reliability, the manufacturing method and equipment would be simpler. This means that it is possible to produce low-cost, high-quality products. In other words, the aim is to create high-quality brush contacts with one welding process.

In line with the above purpose, we have developed the third method to solve the above-mentioned problems.
As shown in the figure, there is a groove for fixing the bar 2 at the location of the leaf spring 4 where the horizontal tight thin liI1 is welded, which prevents the bar 2 from moving during welding and facilitates welding. This bar 2 is
They come in various shapes and materials that allow one or more high-quality welds to be made. An example is shown in FIGS. 4(A), (B), and (C). Alternatively, as shown in FIG. 4(D), there is also a method of attaching a bar 2 to a flat plate spring 4 and welding it to a horizontal thin wire 1.

The bar 2 is sandwiched between the plate panel 4 and the horizontal thin wire 1, and these three types of materials are welded at the same time.

At this time, the bar 2 will play a role similar to the projector 1. Moreover, for the bar 2, a material suitable for welding both the horizontal thin wire I and the plate spring 4 can be freely selected.

Therefore, brush contacts made by this method have uniform and stable welding strength similar to brush contacts obtained by two-time welding, and have a high degree of reliability.

``Example'' An example of the method for manufacturing a sliding plastic contact according to the present invention will be described with reference to the drawings.

As shown in FIG. 5(A), the leaf spring material 9 is fed by the pilot 8. The bar 2 is in close contact with the leaf spring 9. It is fed together with the leaf spring material 9. The horizontal density and fineness liIl are shown in Figure 5.
As shown in (B), the three materials are supplied onto the bar 2 and welded.

Thereafter, the brush contact 3 is pressed and cut into one brush contact to produce a brush contact in the final shape.

``Effects of the invention'' Even if the number of welding steps required to make a 1g brush contact is reduced from the conventional 2 times to 1 time, uniform and stable welding strength can be obtained, and it has a high degree of reliability. Moreover, processing costs are reduced. The manufacturing method and apparatus for the brush contacts having the above-mentioned characteristics have become simpler, and as a result, the fully automatic sliding brush contact manufacturing equipment 1''f1 can be manufactured at low cost.

As can be seen from the above, we are now able to supply low-cost, high-quality sliding brush contacts.

[Brief explanation of drawings]

Figures 1 (A) and 1 (B) are perspective views showing the process of making a conventional sliding brush contact. FIG. 3 is a cross-sectional view showing a spot welding process. FIG. 2 is a sectional view showing a welding process for making a conventional sliding brush contact. FIG. 3 is a sectional view showing a practical example of the welding process for making the sliding brush contact of the present invention. Figure 4 (A). (B). (C). (D) is a cross-sectional view showing various shapes of the bar 2 and the leaf spring. FIG. 5(A) is a top view of the manufacturing of the sliding brush contact of the present invention with the upper electrode removed. Figure 5 (B). (C) is a horizontal and vertical cross-sectional view showing a practical example of a welding process for making a sliding brush contact of the present invention, respectively. l●●●Horizontal dense and thin lit 2---Bar material 3●●
●Brush contact 4●●●Plate spring 5●●O lower electrode 6 fist●●upper electrode 711●●Horizontal close-contact fine wire guide device {n

Claims (1)

[Claims] After gathering a large number of thin wires while transporting them, they are horizontally arranged and gathered, all of them are brought into close contact horizontally, and the large number of horizontally close thin wires is intermittently fed, while at least 0° or more is A sliding brush characterized in that a leaf spring material and a bar material are intermittently fed from the angular direction, and the bar material is successively sandwiched between the leaf spring and the horizontal thin wire and welded at regular intervals. Contact manufacturing method