JPH07267356A - Part feeder - Google Patents

Abstract

PURPOSE:To stabilize a part stopping position in a temporarily stopping chamber by arranging a stopper member, in which a guide groove is provided and a magnet is embedded in the temporarily stopping chamber for fixing the parts. CONSTITUTION:A stopper member 15 is arranged in a temporarily stopping chamber 14, and a guide groove 27 provided with a steppedly varied shape is formed in the stopper member 15. A circular arc groove 28, in which a large diameter part of a feeding rod is slid, is formed in the upper part, of the guide groove 27, and on the lower side of the groove 28, a circular arc groove 30 in which a spherical part of a projection nut (nut) 19 is stored is formed, and on the further lower side, a guide groove 31 receiving the hexagonal base part of the nut 19 is formed. In the stopper member 15, a magnet 16 is arranged in the position slightly upper than the center point of gravity of the nut 19. When the nut 19 is inserted into the temporarily stopping chamber 14 via a parts feeding path 13, the base part of the nut 19 is inserted in the groove 31 and the spherical part is inserted into the groove 30 at the same time, and then, the nut 19 is attracted by means of the magnet 16 to be temporarily stopped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component supply device of a type in which a supply rod advances into a temporary stop chamber installed at an end of a component supply passage to deliver a component in the temporary stop chamber. .

[0002]

2. Description of the Related Art The present invention is an improvement of a component supply apparatus as shown in FIG. 11. First, referring to FIG. 11, a component supply pipe 1 forming a component supply passage has a temporary stop chamber. It is connected to the supply head 2, a guide tube 3 is connected to the supply head 2, and an air cylinder 4 is connected to it. The piston rod of the air cylinder 4 itself constitutes a component supply rod 5 (shown by a chain double-dashed line), and is composed of a large-diameter portion 6 and a small-diameter guide portion 7.
An extruded surface 8 is formed at the boundary portion of. here,
The component is a projection nut 9, which welds the nut 9 to the steel plate component 11 placed on the fixed electrode 10 of the welding machine, and the movable electrode 12 forming a pair with the fixed electrode 10 is installed. The nut 9 in the supply head 2 is attached to the guide portion 7
Is skewered and extruded on the extruding surface 8, and the nut 9 is placed on the steel plate component 11 while sliding on the guide portion 7.

To explain the part of the temporary stop chamber described in FIG. 11 with reference to FIG. 12, the temporary stop chamber 14 is installed at the end of the component supply passage 13, and the supply rod 5 advances there. The stopper member 1 forming the inner wall of the temporary stop chamber 14
5 is fixed. A magnet 16 is provided in the stopper member 15.
Are embedded, and the nut 9 is adsorbed to the stopper member 15 to temporarily lock the components in the temporary stop chamber 14. The stopper member 15 is fixed by being pressed by a bolt 17, and the bolt 17 is screwed into an arm member 18 welded to the guide tube 3. The surface of the stopper member 15, that is, the surface that receives the nut 9 is a flat surface.

[0004]

In the conventional structure as shown in FIG. 12, since the surface of the stopper member 15 is flat as described above, the nut 9 may be displaced in the direction perpendicular to the paper surface. Particularly, when the nut 9 that has entered the temporary stop chamber 14 with great force is repelled by the surface of the stopper member 15, such a positional deviation occurs, and when the amount becomes large, the supply rod is inserted into the screw hole of the nut 9. There is a problem that the nut does not come in and pops off the nut.

[0005]

Means for Solving the Problem and Its Action The present invention is provided to solve the above-mentioned problems.
According to a first aspect of the present invention, in the type in which the supply rod advances into the temporary stop chamber installed at the end of the component supply passage to deliver the component in the temporary stop chamber, the stopper member forming the inner wall of the temporary stop chamber. The stopper member is provided with a guide groove for equalizing the temporary fixing positions of the parts and for guiding the parts when they are sent out. The part is received in the guide groove, and the part slides in the guide groove as the part is pushed out by the supply rod, so that the posture thereof is properly maintained. Claim 2
The magnet for attracting and holding the component according to claim 1, wherein the magnet is embedded inside the stopper member, and the attraction force of the magnet acts to position the component in the guide groove. There is.

[0006]

EXAMPLES Next, examples will be described. The parts to be supplied here are iron projection nuts 19 as shown in FIG. 9 and FIG.
It is composed of a square base portion 20 and a spherical portion 21 integrated with the base portion 20, a protrusion 22 for welding is provided on the base portion 20, a through hole 23 is opened in the center portion, and a female screw is cut in a part thereof.
The embodiment shown in FIGS. 1 to 8 will be described.
Members having the same functions as those described with reference to FIGS. 11 and 12 are denoted by the same reference numerals in the drawings and detailed description thereof is omitted. The stopper member 15 in FIG. 1 is shown without being cut longitudinally, and the characteristic point of the present invention is that the stopper member 15 has a unique structure. Temporary chamber 14
Communicates downward through the opening 24, and bifurcated projections 25 are provided at the end of the component supply pipe 1. The stopper member 15 has a protrusion 26, and the protrusions 25, 25
The convex portion 26 is fitted tightly between the two. Convex portion 26
A guide groove 27 is formed in the guide groove 27, and the shape of the guide groove 27 is gradually changed as shown in FIG. That is, an arcuate groove 28 on which the large-diameter portion 6 of the supply rod slides is formed in the upper part thereof, and combined with an arcuate notch 29 provided at the end of the component supply pipe 1, a circular hole is formed. It has become. Groove 28
An arcuate groove 30 for accommodating the spherical portion 21 of the nut is formed on the lower side and has a diameter slightly larger than that of the groove 28. Further, a groove 31 (see FIG. 7) that receives and guides the base 20 of the nut is formed on the lower side thereof. The hexagonal shape of the base 20 is accommodated in the groove 31 as shown in FIG. 7, and the dimension and shape of the groove 31 are set so that the base 20 comes into close contact with the bottom surface 32 when the nut 19 is attracted by the magnet 16. There is. The magnet 16 is installed slightly above the center of gravity of the nut 19 (see FIG. 7).

When the nut 19 enters the temporary fixing chamber 14 through the parts supply passage 13, the base 20 thereof enters the groove 31 and the spherical portion 21 enters the groove 30 to guide the guide groove as shown in FIG. Accepted within 27. At this time, as shown in FIG. 4, the magnet 16 is positioned slightly above the nut 19, so that the base portion 20 of the nut 19 is engaged with the step portion 33 to perform vertical positioning. In addition,
The magnet 16 is enclosed by the cover plate 34. When the supply rod 5 advances from this state, the supply operation as described with reference to FIGS. 11 and 12 is performed.

[0008]

According to the present invention, since the guide groove is installed in the stopper member, the parts that have entered the temporary stop chamber are received by the guide groove, so that the parts are always temporarily fixed in a uniform position. Therefore, the relative position between the component and the component supply rod in the temporary stop chamber is made normal. By matching the shape of the guide groove with the shape of the component, it is possible to more accurately obtain the relative position. Further, since the magnet is embedded inside the stopper member, the attractive force of the magnet and the shape of the guide groove act in combination to make the temporary locking of the component more reliable. As is apparent from FIG. 2, by adopting a structure in which the convex portion of the stopper member is inserted into the bifurcated portion of the component supply pipe, it is possible to accurately set the relative position between the component supply passage and the guide groove, and It is possible to increase the rigidity of the assembled structure.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line (2)-(2) of FIG.

FIG. 3 is a front view showing an appearance of a stopper member.

4 is a sectional view taken along line (4)-(4) of FIG.

5 is a sectional view taken along line (5)-(5) of FIG.

6 is a sectional view taken along line (6)-(6) of FIG.

7 is a sectional view taken along line (7)-(7) of FIG.

FIG. 8 is a perspective view of a stopper member.

FIG. 9 is a vertical sectional side view of a component.

FIG. 10 is a plan view of the component.

FIG. 11 is a side view showing the entire component supply device.

FIG. 12 is a vertical sectional side view showing a conventional structure.

[Explanation of symbols]

 13 parts supply passage 14 temporary stop chamber 5 supply rod 19 parts 15 stopper member 27 guide groove 16 magnet

Claims (2)

[Claims] 1. A stopper member for forming an inner wall of a temporary stop chamber in a type in which a supply rod advances into a temporary stop chamber installed at an end of a component supply passage to deliver a component in the temporary stop chamber. The component supply device is characterized in that the stopper member is provided with a guide groove for making the temporary fixing positions of the components uniform and for guiding the components when they are delivered. 2. The component supply device according to claim 1, wherein a magnet for attracting and holding the component is embedded inside the stopper member.