JPS609584A - Stud feeder - Google Patents

Abstract

PURPOSE:To improve working efficiency and quality by providing a delivery part and an inserting part, eliminating the deformation and damage during transfer of studs to a welding gun and enabling automation of stud welding. CONSTITUTION:A desired stud 2A is selected from a parts feeder 1A and is housed through a chute 5 into the hole 7a of a moving element 7. The element 7 moves and the stud 2A housed in the hole 7A is transferred through a hose 13 for transfer by compressed air to a slider 22, by which the stud is housed in a hole 22a. The stud 2A housed therein is repositioned by a guide 28 so as to be aligned to the axial center of the holding part 15a of a welding gun 15 and is thus fed to the gun 15. The gun 15 is turned so that the stud 2A is welded to the prescribed position of an object to be worked.

Description

[Detailed description of the invention] [Technical field of invention] The present invention relates to improvements in stud feeding devices.

[Technical background of the invention and its problems] Conventionally, for example, in welding work using a stud welder, the worker manually inserts the stud and then welds it to the workpiece, which reduces work efficiency. It was difficult to improve.

Therefore, there is a demand for automating this welding work, and the present applicant proposed this device to Hikari.

However, apart from this automation, it is also necessary to ensure that the studs are not damaged or deformed during the process of inserting them into the weld gun, and that the studs must be fed reliably. was.

[Purpose of the invention]

The present invention was made in order to solve the above-mentioned needs, and aims to provide a stud supply device that can reliably supply studs without damaging or deforming them.

[Summary of the Invention] The present invention is characterized by being provided with a feeding section that selects and feeds out Ti number of studs, and an insertion section that adjusts the posture of the studs fed out from this feeding section and inserts them into a weld gun. It is something.

Examples of the invention] Next, one embodiment of the present invention will be described with reference to the drawings.

First, I will explain the construction of the greening part that lets out the studs.

In Fig. 1 and Fig. 2, IA#IB#IC...
... (hereinafter referred to as one person) is a well-known parts feeder that selects and sequentially supplies multiple types of studs of different sizes, 2AI2B, 2G... (hereinafter referred to as two people) is this parts feeder IA Studs aligned and sent out from 3A + 3B r 3c...
・(hereinafter referred to as 3A) is an escape that separates two studs sent out in succession into one piece, 4a
+4b+4c... (hereinafter referred to as 4a) is a branch chute in which two studs separated into one piece by two escapers are transferred to chute 5, 6 is a base, and 7 is provided in this base 6. A slider 8 is movable guided by a guide 6a and has a hole 7a at a position facing the chute 5, and a slider 7 is attached to the base 6.
A cylinder 9 moves the pad 1 at a predetermined time, a mounting plate 9 is movable up and down guided by a guide (not shown), and 10 is connected to a pressure air source (not shown).
1 to the mounting plate 9. here pad 1
1 indicates that the mover 7 is in a predetermined position (indicated by a dashed line in Fig. 2)
When the slider 7 moves to a predetermined position, the pad 11 is attached to a frame opposite to the hole 7a.
is a cylinder 13 that is moved down so as to come into contact with the hole 7a as shown by the dashed line in FIG.
This is a two-stud transfer hose with one end disposed at a position facing the hole 6b of the base 60, which is provided corresponding to the hole 7a of the base 60.

Next, the configuration of the insertion portion for inserting the stud 28 into the weld gun 15 will be explained. In FIGS. 3 to 6, 16 is a frame, 17 is a support plate fixed to this frame 16, and 18 is a guide shirt fixed to this support plate 17). A slider 20 is movable by a cylinder 168 provided with a hole 18a for inserting the other end of the transfer hose 13 and a hole 1-8b for inserting the pusher 19.
1a and 21b, and the cylinder 22 moves the pusher 19 back and forth. The cylinder 22 is attached to the slider 18 so that it can move up and down so that when the hole 22a moves up, it communicates with the hole 18a, and when it moves down, it communicates with the hole 18b. The attached slider 23 is attached to the slider 18 via the mounting plate 24 and is a cylinder 2 that moves the slider 22 up and down.
5 It is movably inserted concentrically with the hole 18a and with a gap between the inner peripheral surface of the hole 18C of the slider 18, and the elastic body 26 is normally inserted.
The front surface (9111 on the left in FIG. 3) is held in a position that does not protrude from the rear surface of the slider 22 (on the right side in FIG. 3),
Magnet that attracts the two studs transferred, 2
6 is an elastic body that elastically supports this magnet 25; 27 is a detector that detects when the stud 2A is attracted to the magnet 25; 2B is attached to the end of the hole 18b of the slider 18 and arranges the wires in a conical shape; A guide 29 is a holding member for the slider 22 and adjusts the posture so that the tips of the two studs are always located in the center of the hole.

Next, the present invention having the above configuration will be explained in detail.

A desired stud 2 is selected by a control device (not shown) or an operator.
Select 8, activate the parts feeder containing this and transfer the 2 studs to the escaper 3.

The two studs transferred to the escape 3A are separated one by one and accommodated in the hole 7a of the mover 7 via the branch chute 4a and the chute 5. The two studs accommodated in this hole 7a are moved to the second position by the cylinder 8.
Move forward to the position shown by the dashed line in the figure, and then cylinder 1.
2, the mounting plate 9 moves downward, the nozzle 11 contacts the hole 7a of the slider 7, and pressurized air is supplied to the hose 10.
This pressurized air pushes the magnet 25 and moves it backward, thereby causing the outer periphery of the magnet 25 and the hole 18 of the slider 18 to
Since it is discharged from the gap on the inner circumference of C, the transfer hose 13
is transferred to the slider 22 through the hole 22a and accommodated in the hole 22a. At this time, the two studs hit the magnet 25, their kinetic energy is absorbed by the elastic body 26, and then they are attracted, and it is detected that they have arrived at the slider 22 at the same time. By providing the elastic body 26 in this manner, the kinetic energy is effectively absorbed, so that the tips of the two studs are not deformed or damaged. The stud 2A accommodated in this hole 22a is attached to the cylinder 16a.
As a result, the slider 18 is moved forward to the position shown by the dashed line in FIG. By being pushed forward, the weld gun 1 is moved through the guide 28.
The welding gun 15 is supplied to the weld gun 15 with its attitude adjusted so as to match the axis of the holding portion 15a of No. 5. The welding gun 15 supplied with these two studs rotates in the direction shown by the arrow in FIG. 3, and welds the two studs at predetermined positions on a workpiece (not shown).

[Effects of the Invention] Since the present invention is configured as described above, a desired stud can be selected based on the type of contact, and when the stud is transferred to the weld gun, there is no deformation or damage, and the stud is not inserted into the weld gun. The axial center can be aligned and aligned at any time, making it easier to automate stud welding work and ensuring welding is carried out reliably, greatly improving work efficiency and quality.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a main part of an embodiment of the present invention, FIG. 2 is a sectional view of a mover of an embodiment of the present invention, and FIG. 3 is a diagram illustrating FIG. 4 is a sectional view taken along line A-A in FIG. 3; FIG. 5 is a partially cutaway perspective view showing the upper part of a slider according to an embodiment of the present invention; FIG. 6 is a partially cutaway perspective view showing the lower part of a slider according to an embodiment of the present invention. 2A, 28.2C,... Stud 7... Mover 13
...Transfer hose 15...Weld gun 18.2
2...Slider

Claims (1)

[Claims] A feeding section that selects and feeds out a desired stud, and then transfers the stud using pressure fluid; and the weld gun, which adjusts the posture of the stud transferred from this feeding section so that its axis substantially coincides with the axis of the weld gun. A stud feeding device consisting of an insertion part to be inserted into the stud.