JPS62107933A - Device for installing helical compression spring - Google Patents

Abstract

PURPOSE:To install various types of helical compression springs on the spring holder of a product by installing a pair of assembling heads for installing a spring, on an installing hand in such a way that the interval between said assem bling head is adjustable. CONSTITUTION:An installing hand 3 compresses a helical compression spring 9 until the distance between both end parts of the spring 9 is a little smaller than the interval of the spring holder 11 of a product, holds the helical compression spring 9 with its slits 4 and spring covers 5, and takes it out from a spring feeding device 10. The taken-out helical compression spring 9 is moved in a position over the spring holder 11 of the product and lowered, by means of the installing hand 3, and is stopped in a position in which the center of the helical compression spring agrees with that of the spring holder 11. Then, the installing hand 3 is opened, and both the end parts of the helical compression spring 9 which is expanded to its original length, are installed in the spring holder 11 and held by it. When the installing operation is over, the installing hand 3 is lifted up.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a compression coil spring mounting device, which mounts various compression coil springs aligned and positioned to a pair of spring receivers maintained at a predetermined interval.

<Prior Art> Conventionally, the assembly work of assembling both ends of a compression coil spring to a pair of spring receivers formed on a product has been mainly performed manually, and only some parts have been automated. For this reason, in the former case, even when automating product assembly, only the work of assembling the compression coil springs must be done manually by workers, making it impossible to unmann the assembly line.Also, In the latter case, the compression coil spring is compressed from both ends and assembled into the spring holder, or the body of the spring is clamped with a pair of hands and the spring holder is compressed by the hands and assembled into the spring holder, so the shape of the spring holder is different. In addition to poor adaptability to different types of springs, compression coil springs have small outer diameters and short lengths, and are difficult to assemble in places with limited space.
Furthermore, there are disadvantages in that the device becomes large and heavy and has a complicated structure.

<Problems to be Solved by the Invention> The present invention provides various compression coil bars that are aligned and positioned by solving the drawbacks of the prior art described above.

It is an object of the present invention to automatically attach springs to spring holders of a product kept at predetermined intervals, and to also achieve the effect of simplifying and reducing the weight of the device.

<Embodiment> An embodiment of the present invention will be described based on FIGS. 1 and 2.

Fig. 1 shows a compression coil spring mounting device, fal in the same figure is an overall plan view, fbl in the same figure is a partially enlarged plan view, and the same figure (c
1 is a side view seen from the inside. The compression coil spring mounting device 1 includes a pair of spring mounting built-in heads 2.2, and a mounting hand 1.25. It is mainly composed of The built-in head 2 includes a slit 4 that is inserted within the winding pitch interval of the spring and compresses the compression coil spring 9 to a predetermined interval, and a spring cover 5 that maintains the posture of the compressed compression coil spring 9.
is fixed to the holder 6 with screws 7.8. The width of the slit 4 is the compression coil spring 9.
It has a width wider than the outer diameter of the compression coil spring 9, and the width direction of the tip part has a round shape that is larger than the outer diameter of the compression coil spring 9. A pair of built-in heads 2.2 configured as described above are inserted into both slits 4.2.
4. At the corresponding position of the spring cover 5°5, both slits 4,
The inclination at the θ angle is attached to the mounting hand 8 so that the arrangement interval is wider on the holder 6 side.

The operation of the device will be explained with reference to FIG. First, the compression coil spring 9 is aligned and positioned below the spring mounting device 1 by the spring supply device 10. Next, the mounting hand 8 in Figure 1
is lowered and the slit 4°4 is inserted into the coil pitch interval 9a, 9a of the positioned compression coil spring 9, and then the mounting hand 3 is moved so that the distance between both ends of the compression coil spring 9 is the same as that of the spring receiver 11, 11 of the product. The compression coil spring 9 is held by the slit 4.4 and the spring cover 5.5, and the compression coil spring 9 is taken out from the spring supply device IO (Figs. 2(at), (b), f
cl, (dl). At this time, since the slit 4.4 is inclined so that the holder 6 side of the mounting hand 3 is wider, the central part of the compressed coil spring 9 is bent toward the holder 6 side by narrowing the slit 4.4. It is always held by the spring cover 5.5.

The taken out compression coil spring 9 is moved by the mounting hand 3 so as to be positioned above the spring receiver 11.11 of the product, and then lowered, and the compression coil spring 9 and the spring receiver 11.1 are moved.
It is stopped at the position where the centers of
, (fl). Next, the mounting hand 3 performs an opening operation at the above position, and both ends of the compression coil spring 9, which has been widened to the original spacing, are mounted and held in the spring receivers II and 11 (FIG. 2(g)). Compression coil spring 9 into spring receiver 11.11
When the installation is finished, the installation hand 3 rises, but at this time,
When the mounting hand 3 is opened, both ends of the compression coil spring 9 are slightly compressed by the slit 4.4 in the direction of the spring receiver 11.11, so when the slit 4.4 is removed from the compression coil spring 9, the spring receiver 11.11 When held, the compression coil spring 9 does not come off from the spring receiver 11.11. After the mounting hand 3 is raised, it is moved to a predetermined position above the spring supply device IO, and one cycle of work is completed. By repeating the above-described operation, the compression coil springs 9 supplied to the spring supply device 1O are sequentially moved to the product spring receivers 11. at a predetermined interval. IIK can be installed automatically.

<Effects of the Invention> According to the present invention, each slit T of a pair of built-in heads is inserted into the winding pitch interval of the compression coil spring aligned and positioned by the spring supply device, and the compression coil spring is compressed to a predetermined interval. Take it out from the supply device and move it to above the spring receiver of the product, lower the assembly head, spread the assembly head to the original spacing at the predetermined position, and attach the compression coil spring to the spring receiver. Therefore, various compression coil springs can be automatically attached to the spring receiver of the product by simply adjusting the spacing between the slits and the amount of movement of the assembly head.

[Brief explanation of drawings]

Figure 1 fal is a plan view of the compression coil spring mounting device.
The figures (BL is a partially enlarged plan view thereof, Figure IC) is a side view thereof, and FIG. 2 is an explanatory diagram of the operation of the compression coil spring mounting device. In the figure, l: compression coil spring mounting device, 2: built-in head, 8: mounting hand, 4 nis slit, 5: spring force bar, 6: holder, 7: screw, 8: screw, 9: compression coil spring, IO = spring Supply device, summer 1: Spring holder is agent Patent attorney Aihiko Fukushi (and 2 others) Figure 1 (G) (C) (e) (q) 2nd Ge) (h) Figure

Claims (3)

[Claims] (1) A device for attaching a compression coil spring to a spring holder having a predetermined interval, in which a slit inserted within the winding pitch interval of the spring and a spring cover that wraps around the compression coil spring and maintains its posture are fixed to the holder. A compression coil spring mounting device comprising: a built-in head for spring mounting; and a pair of the built-in heads are attached to a mounting hand so as to adjust the spacing. (2) The width of the slit is wider than the outer diameter of the compression coil spring, and the width direction of the tip is round, which is larger than the compression coil spring outer diameter, and the thickness direction is inclined toward the opposite side of the compression direction of the compression coil spring. A compression coil spring mounting device according to claim 1, wherein the compression coil spring mounting device is provided. (3) The compression coil spring mounting device according to claim 1, characterized in that the pair of built-in heads for spring mounting are configured to be movable relative to each other in the compression direction of the spring.