JPS5897482A - Automatic stud mounting device for stud welding gun - Google Patents

Abstract

PURPOSE:To mount a stud to a stud welding gun automatically and to improve working efficiency markedly, by receiving the stud from a stud supplying part and moving the same to a stud mounting position by a driving mechanism. CONSTITUTION:A stud 7 is inserted in a stud receiving part 6, and after the piston rod 3a of a cylinder 3 for feeding studs in an axial direction is moved in an advance direction, the piston rod 5a of a cylinder 5 for feeding studs in a transverse direction is moved to the advance position. Thereafter, again the cylinder 3 operates toward the retreat position, and the part 6 is moved in the position facing the chuck of a stud welding gun 1. Then, the stud 7 is inserted into a collet and is pushed down to the magnet attracting position. Thus, the stud 7 is mounted from a stud supply pipe 2 to a stud welding gun 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a device for automatically loading a stud to be welded onto a stud welding gun.

Stud welding guns used with stud welding machines such as arc stud welding machines and capacitor discharge type stud welding machines are generally divided into two types: one is a fixed type that is fixed to a stand in an assembly factory, and the other is a fixed type that is used by a worker at a construction site. There are portable types that can be held and used by hand, and in particular for portable 1m staff guns, it is normal for the worker to attach the stamp P to be welded by hand. When welding a large number of studs of the same size, it was necessary for the worker to bring the various studs to the site along with a stud welding gun, which limited the amount of time between the two operations. Bringing in bulky and multiple studs not only puts a heavy burden on workers;
Stud installation work is also relatively troublesome, reducing welding work efficiency.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide an automatic stud mounting device that can eliminate the above-mentioned drawbacks, reduce the burden on the operator, and at the same time significantly improve welding efficiency.

For this purpose, in the variable stud mounting device according to the invention, the stud is received from the stud supply section, which may consist, for example, of a stud supply tube dimensioned according to the diameter of the stud to be welded. t) A stud receiving part J is provided, and a drive for moving this stand receiving part 8 corresponding to the mounting operation from the position of the stand receiving part, which is similar to the stud supply part, to the stud mounting position 1d which is placed on the stud welding gun. A mechanism is provided. This drive channel may preferably consist of a pressure-actuated cylinder with an axial stud-loading cylinder and a transverse force stud 1" feed cylinder. The drive mechanism may also consist solely of an axial stud feed cylinder, which The piston rod of the cylinder can be made rotatable, and the stud receiving part attached to the tip of the piston rod via a mounting arm can be moved to the stud mounting position using a stud welding gun. The device according to the invention is supported on the stud wetting gun by a holder which can be suspended, for example.Furthermore, the power source for the drive mechanism of the stud receptacle may be fluid pressure, magnetic force, or other machinery. Force can be used.

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

Figure 7.2 schematically shows an embodiment of the present invention, where / is a stud welding gun, λ is a stud supply pipe, and 3 is a stud welding gun.
is an axial stud feed cylinder, and these devices are integrally VC supported by a holder. The piston rod JaVc of the axial stud feed cylinder 3 is added with 4 yellow direction stud feed cylinders j, and the piston rod JaVc of this cylinder j with lateral studs is added.
Stud Ukegun 6 is installed. This stand receiver, i
li 6 is soil 8 vinyl 7 linda 3. It is moved forward from the 1st surface where the tip VC of the stud supply +I@tube is cut to the 14th surface where it is separated from the chuck/a of the stud welding gun.

Stand holder consisting of cylinder 3゜j'r8 (16 jJ
The movement of the motive grooves is performed in a predetermined order, for example, by actuation of a switch (not shown).

(D5) The operation of the device shown in Figure 79.2 will be explained with reference to Figures 3 to 6.

3rd to 61st. Figure 7.2 shows a rough schematic representation of the arrangement 7m shown in Figure 7.2, with concentric parts designated by the same reference numerals.

Figure 3 shows that the stud receiving part 6 is connected to the stud supply pipe.
Shita stand holder 11'L r# Indicates a VC state, and in this doinu position, 1 mountain j cylinder 3. The piston rods 3a and ja are in the retracted position. At this point]a, the stud 7 is inserted into the stud receiving portion 6. As shown in Fig. 3, the piston rod 3a of the axial stud feed cylinder 3 was moved to the forward position, and the piston rod 1'3a of the axial stud feed cylinder 3 was moved to the forward position. YC groove direction stud L as shown in the figure
Piston rod ja of heli cylinder j is moved to 1fil flag position d. Thereafter, the axial stud feed cylinder 3 is operated again toward the axial position Id, and the stud receiver 6 is placed in the chuck a of the stud welding gun as shown in FIG. The stud 7 is moved to the position B r, thereby inserting the stud 7 into the collet and pushing it to the magnet suction position A. In this way, the stator P7 is attached to the stud welding gun from the stud supply #2.

The drive mechanism for the rear stud receiving part is constructed in the reverse order as described above, returning to the position lα shown in FIG. Therefore, the position of the stud melting gun is determined on the base material, and the
Le/b (Figure 2) By pulling the trigger/cf provided with VC, it is possible to melt the VC.

As explained above, according to the present invention, it is possible to dynamically and easily attach the stud 7 to the stud welding gun l, which not only saves the worker the trouble of refining the stud, but also limits the amount of work required. There is no need to bring the studs to the welding work site in a confined space or scaffolding, and the video of the work can be greatly improved.

[Brief explanation of the drawing]

4 is a front view showing an example of the device according to the present invention, FIG. 2 is a bottom view of the device shown in FIG. 1, and FIGS. 3 to 6 are operation explanatory diagrams showing the order of operation. In the figure, /: Stud welding gun, with Konistad supply, 3
．． j: Drive mechanism, 6: Stud receiver, 7: Stud. Figure 1

Claims (1)

[Claims] Seven stud welding guns are supported by a holder,
It has a stud receiving part that receives studs from the stud supplying part, and a drive mechanism is provided to drive this stand receiving part between the position of the stud receiving part and the stud mounting position on the center axis of the stud welding gun. The automatic stud mounting device for a stand welding gun is characterized in that the stud can be automatically mounted on the stud welding gun sequentially from the top of the stud. 2. A device according to claim 1, comprising a pressure-actuated cylinder device with a piston rod fitted with a stud receptacle. 3. An axial stud feed cylinder in which a pressure actuated cylinder device is supported by a holder with/together with a stud weld, and a transverse stud which is attached to the piston rod of the axial stud edge cylinder and has a stun 19 attached to its own piston rod. l゛include cylinder and all have %￥-
f. Apparatus according to claim 43.2.