JPH0685266B2 - How to assemble the suspension - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method of assembling a suspension used in the electronic industry.

[Prior Art] A conventional suspension assembly method is to form a plurality of load beams, one end of which is coupled to a metal plate, at the same intervals by etching or pressing, while a flexure, one end of which is coupled to the metal plate, is used as the load beam. It was formed by etching or pressing at the same intervals as above, both metal plates were fixedly held by a holder, the tip of the load beam and the flexure were butted, and both were welded by spot welding to assemble the suspension. In this method, the flexure is smaller than the load beam, so if the flexure is formed on the metal plate at the same intervals as the load beam by etching or pressing, the flexure is not formed on the metal plate, and the portion removed by etching or pressing is extremely large. However, there was a drawback that it was a lot wasteful.

[Problems Solved by the Present Invention] The present invention does not form a flexure on the above metal plate,
This is a solution to the disadvantage that a large amount of portions are removed by etching or pressing, which is wasteful.

MEANS FOR SOLVING THE PROBLEM The present invention provides "1. A large number of flexures, one end of which is coupled to a metal plate, are formed by etching or pressing at the same intervals, while a large number of load beams whose one end is coupled to a metal plate are at the same interval. Formed by etching or pressing with, hold both metal plates fixed with a holding tool, but abut the tip of the load beam and the flexure, weld both by laser spot welding, then separate the flexure from the metal plate, and then leave the remaining flexure. The method of assembling the suspension, characterized in that the step of abutting with the tip of the next held load beam and welding of both by laser spot welding are repeated until there is no flexure held on the metal plate.

2. Insert a pin provided on a holder into a plurality of holes provided in each metal plate where one end of the flexure and one end of the load beam are joined, and fix and hold the ends of the load beam and the flexure, and perform laser spot welding. The method for assembling the suspension described in the first section of the above.

3. The remaining flexure is displaced, but the tip of the load beam fixedly held by the holder is abutted, and laser spot welding is repeated until the remaining flexure disappears. Alternatively, the method for assembling the suspension described in item 2. Regarding

[Operation] According to the present invention, since a large number of flexures are provided by connecting one end to a metal plate, there is no waste on the metal plate, and in assembly of the suspension, the tip of the load beam and the flexure are butted, laser spot welding is performed, and then the flexure is attached. By moving the combined metal plates to the left and right, the remaining flexure is brought into contact with the tip of the next load beam, and laser spot welding is performed, so that the metal plates can be used without waste. In this case, since the load beams are provided at equal intervals, it is advantageous to match the flexures at equal intervals.

What is important in the present invention is to abut the tip of the load beam and the flexure for laser spot welding,
It is to hold both of them fixed. Since both the load beam and the flexure are made of thin metal plates, it is difficult to butt and laser spot weld them unless they are fixedly held. As the fixed holding means, nipping is also effective, but in particular, a plurality of holes are provided in advance on each metal plate to which one end of the flexure and the load beam are joined, and the pin installed on the holding plate of the holding tool is inserted into this hole. When the tip of the load beam and the flexure are butted against each other while being fixedly held, not only is the positioning of the metal plate easy, but there is no positional displacement, which is extremely effective.

[Embodiment] Next, an embodiment of the present invention will be described with reference to the drawings.

The load beam and the flexure are schematically shown in FIGS. 1 to 5, and details thereof are shown in FIGS. 7 and 8.

FIG. 1 shows a load beam 1 formed by connecting one end to a metal plate used in the present invention. Reference numeral 3 is a fixing hole provided in the metal plate.

FIG. 2 shows a flexure 2 formed by connecting one end to a metal plate used in the present invention, and it is understood that the flexure 2 has a larger number than the load beam and is not 1: 1 numerically. In this way, many flexures are formed. Reference numeral 4 is a fixing hole provided in the metal plate.

FIG. 3 shows a flexure that has been used conventionally, and is formed in the same number as the load beam. That is, it is understood that there is a space between the flexures and the metal in this portion is wasted.

FIG. 4 shows an embodiment of the present invention, in which the load beam 1 and the flexure 2 are butted. It is understood that there are many unmatched flexures between matched flexures.

FIG. 5 shows a state in which the load beam and the flexure are butted against each other and laser spot welding is performed according to the present invention, and then the flexure is separated from the metal plate. As shown in Fig. 5, the load beam and the flexure are butted against each other and laser spot welded, the welded flexure is cut from the metal plate, and either the remaining flexure or the load beam is displaced, and again as shown in Fig. 4. By repeating the butt laser spot welding of both, the entire flexure is used. As described above, according to the present invention, it is understood that there is no space between the flexures, the metal plate is not wasted, and the welding operation is efficient.

FIG. 6 is a sectional view taken along line AA ′ of FIG.
The state where the load beam and the flexure are butted against each other is shown. The load beam is fixed and held by inserting the pins 6 installed on the holding plate 5 of the holder into the plurality of fixing holes 3 provided on the metal plate to which one end of the load beam is coupled, and to the metal plate to which one end of the flexure is coupled. The pin 7 installed on the holding plate 5 of the holder is inserted into the plurality of fixing holes 4 provided to fix and hold the flexure, and the load beam and the flexure are butted and spot welded.

[Effect] According to the present invention, a flexure smaller than a load beam is effectively formed and used, and it is clear from the fact that the rate-controlling step in the production of a suspension is in the production of the flexure by etching or pressing. To
Not only in terms of cost, but also in terms of production speed,
It is understood that it is extremely excellent.

[Brief description of drawings]

1 and 2 are front views showing a load beam and a flexure used in the present invention. FIG. 3 is a front view showing a flexure conventionally used. FIG. 4 is a front view showing an embodiment of the present invention. FIG. 5 is a front view showing a suspension in which one end of a load beam manufactured according to the present invention is connected to a metal plate. FIG. 6 is a cross-sectional view showing a manufacturing state of the suspension of the present invention. 7 and 8 are front views showing a load beam and a flexure, respectively. 1 …… load beam 2 …… flexure 3 …… fixing hole 4 …… fixing hole 5 …… holding plate 6 …… pin 7 …… pin

Claims (3)

[Claims] 1. A plurality of flexures, one end of which is bonded to a metal plate, are formed at the same intervals by etching or pressing,
On the other hand, a number of load beams, one end of which is joined to a metal plate, are formed at the same intervals by etching or pressing, both metal plates are fixed and held by a holder, the tip of the load beam and the flexure are butted, and both are made by laser spot welding. After welding, separate the flexure from the metal plate,
Then, the remaining flexure is brought into contact with the tip of the next held load beam, and the two are welded by laser spot welding, which is repeated until the flexure held by the metal plate is exhausted. 2. The tip of the load beam and the flexure are butted against each other by inserting pins provided in a holder into a plurality of holes provided in each metal plate in which one end of the flexure and one end of the load beam are joined, and laser spot welding is performed. A method for assembling a suspension as set forth in claim 1. 3. The method according to claim 1, wherein the remaining flexure is displaced, but the tip of the load beam fixedly held by the holder is abutted, and laser spot welding is repeated until the remaining flexure is exhausted. The method for assembling a suspension according to the first or second paragraph.