JP3047161B2 - Plate-like part supply device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device in which a plate-shaped component is supplied in close contact with an end surface of a supply rod, and particularly when the component has a plate shape. Are suitable.

[0002]

2. Description of the Related Art A prior art which is considered to be closest to the present invention is disclosed in Japanese Patent Publication No. Hei 7-80557 (Japanese Patent Application No. 62-30799).
No. 0) "Component supply rod". What is disclosed therein is a so-called lump-shaped part in which the target part is a projection nut or a short-walled pipe, and a structure suitable for it is adopted. That is, this point will be described with reference to FIG. 9 (shown upward for easy understanding).
A projection nut or the like is brought into close contact with the end surface 2 of the supply rod 1, and a retaining projection 3 is provided around the nut. Then, in order to facilitate the nut to enter the projection 3 from the direction of the arrow, the magnet 4 is arranged in the entry direction of the nut, and when the supply rod 1 advances a predetermined stroke, the magnet 4 is forcibly retracted. Then the nut falls to the destination.

[0003]

In the above-described apparatus, since the target component is a block-like projection nut or a short pipe, the holding function of the component may be the above-described entry-promoting magnet. However, if the part is plate-shaped, an attractive magnetic force acts on the end of the plate thickness,
Parts holding on the supply rod end face becomes unstable. In particular, great care must be taken to adapt the cross-sectional shape of the supply rod itself to the shape of the part.

[0004]

SUMMARY OF THE INVENTION The present invention has been provided to solve the above-mentioned problems.
A flat part is formed on the distal end side of the supply rod, in a state where a plate-shaped component is brought into close contact with the end surface of the supply rod and supplied.
The end has an open portion facing the component supply pipe and another portion has a protruding edge surrounding the component, and a magnet for holding the component in the protruded edge is provided on one side of the flat portion. Or, it is arranged on both sides, and when the supply rod advances to a predetermined position, the magnet is forcibly pulled back and the part is transferred to the counterpart member, and the part inside the protruding edge is the flat part side When the supply rod makes a predetermined stroke, the magnet is forcibly separated from the component, and the component is supplied to the target location.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described with reference to the illustrated embodiments. A typical part targeted by the present invention is as shown in FIG. The part 5 is made of iron and has a plate-like and elongated shape as shown in FIG.
A projection 6 for welding is formed, for example, a width of 5 m.
m, length 13 mm, thickness 1.2 mm. The supply rod 7 is accommodated in the guide cylinder 8, and an air cylinder 9 is connected to the upper end of the guide cylinder 8. The piston rod 10 is fixed to the supply rod 7 and supplied by the output of the air cylinder 9. The rod 7 moves forward and backward. The component 5 is brought into close contact with the end face of the supply rod 7 as described later, and a component supply pipe 11 for the component 5 is arranged. The component supply pipe 11 is fixed by a bracket 12 welded to the guide cylinder 8,
In order to temporarily stop the part 5 moving at high speed from a parts feeder (not shown) in the inside, the control member 13
Is provided. The control member 13 moves into and out of the component supply pipe 11 in order to reduce the speed of the component toward the supply rod 7, and is constituted by a piston rod of an air cylinder 14 fixed to the component supply pipe 11.

The supply rod 7 has a circular cross section, and a flat portion 15 is provided at the tip end thereof so as to conform to the shape of the component 5. The flat portion 15 has a cross-sectional shape as shown in FIG. 3, and is formed by cutting a circular supply rod 7 shown by a two-dot chain line from both upper and lower sides into a thick plate-like shape. It is arranged in a state, and a holding piece described later slides on this plane. As is apparent from FIG. 5, a protruding edge 17 surrounding the component 5 is formed on the end surface of the supply rod 7, that is, the end surface 16 of the flat portion 15, and the component supply pipe 11 is formed.
The portion facing the opening is an open portion 18 having no protruding edge, from which the component 5 enters the protruding edge 17.

[0007] In order to prevent the component 5 that has entered the protruding edge 17 from dropping from here, a magnet is disposed on one or both sides of the tip of the flat portion 15, and when the supply rod 7 advances to a predetermined position, the magnet is disposed. The magnet is forcibly retracted and the part 5 is transferred onto the counterpart member. A structure for realizing such an operation will be described. Here, an example in which magnets are arranged on both sides in the most desirable form will be described. The holding piece 19 has a sliding plate 20 and a raised portion 21 integrated with each other, and a magnet (permanent magnet) in the raised portion 21 is brought close to the tip side, that is, to the left side in FIG.
22 is buried and sealed with a cover plate 23. Reference numeral 24 denotes a through hole of the mounting bolt 25 (see FIG. 4).

The holding piece 19 is provided on both flat surfaces of the flat portion 15 as shown in FIG.
As shown in FIG. 5, the components 5 are arranged so as to slide in a state in which they are in close contact with each other. In order to move the holding piece 19 forward and backward, the supply rod 7 has a structure in which a hollow shaft 26 and an inner shaft 27 are slidably inserted therein, and the hollow shaft 26 has an elongated hole 28 in the axial direction. Is opened,
A regulating pin 29 fixed to the inner shaft 27 penetrates the elongated hole 28 and projects outside. The coil spring 30 inserted into the hollow shaft 26 exerts its tension on the inner shaft 27, which is regulated by the regulation pin 29 contacting the lower end of the elongated hole 28. A driving device 31 is attached to the outer peripheral portion of the guide tube 8 in order to retract the holding piece 19 after the supply rod 7 has advanced and stopped by a predetermined amount or almost simultaneously with the stop. As the driving device 31, an electromagnetic solenoid or the like may be used, but here, an air cylinder 32 is used, and the piston rod 3
A locking piece 34 fixed to 3 protrudes inside through an elongated hole 35 drilled in the axial direction of the guide cylinder 8 and is opposed to the regulating pin 29 so as to be able to abut.

The flat portion 15 is actually formed by shaving both sides of a hollow shaft 26 into a shape as shown in the drawing. As is apparent from FIG. 4, the inner shaft 27 is sandwiched between a pair of holding pieces 19. And integrated by a fixing bolt 25. Therefore, when the inner shaft 27 is pulled back, the holding piece 19 moves backward while sliding on the flat portion 15.

The tip of the flat portion 15 is shown in FIGS.
As can be seen in FIG. 2, the supply rod 7 can be made to reach the target position from an oblique direction by being cut obliquely with respect to the axis. This is Figure 1
Is a supply rod 7 shown by a two-dot chain line. Reference numeral 36 denotes a fixed electrode, and after the component 5 reaches the recess 37, the steel plate component 38 is placed, and then the movable electrode 39 advances to complete the welding. As described above, the outlet of the component supply pipe 11 and the opening 18 of the supply rod are continuously opposed, and the positional relationship is set so that the component 5 from the component supply pipe 11 can smoothly enter the protruding edge 17. Is set. As shown in FIG.
Is formed with a concave portion 40 for receiving the projection 6 of the component. In order to positively introduce the component 5 into the protruding edge 17, a magnet 41 is arranged on an extension of the entry direction of the component. The magnet 41 is embedded in the housing member 42 and is sealed by the cover plate 43. The housing member 42 is welded to one end of the bracket 44, and the other end is welded to the guide cylinder 8.

In the embodiment described above, the air hoses to be connected to the respective air cylinders are not shown. Since an electric control circuit for realizing the operation described below, an electrically operated air switching valve, and the like can be easily implemented in a usual manner, detailed description is omitted here. Furthermore, in order to make the attraction force of the magnet more strongly act on the parts, it is preferable to use a non-magnetic material such as stainless steel for the member containing the magnet and the member such as the flat portion in the vicinity thereof. ing.

Next, the operation will be described. The component 5 that has moved at a high speed is once received by the control member 13, and
Then, when the control member 13 retreats, it is introduced into the protruding edge 17 by the attraction force of the magnet 41 (the magnet 22 also exerts the attraction force at this time), and is brought into close contact with the end face 16 to be attracted and held by the magnet 22. You. Then, the supply rod 7 moves forward while holding the component 5 by the operation of the air cylinder 9, and when it comes close to the fixed electrode 36, the advance stops there. At this time, since the regulating pin 29 has come close to the locking piece 34, the air cylinder 3
2, the inner shaft 27 forcibly pulls back the holding piece 19, the magnet 22 moves away from the component 5, the component holding force substantially disappears, and the component 5 is recessed 37. It is supplied so as to fall into. Thereafter, when the supply rod 7 retreats in the reverse order to the above-described operation, the steel plate part 38 is placed, and then the movable electrode 39 advances and the position of the protrusion 6 is welded.

[0013]

According to the present invention, since a magnet is arranged on one side or both sides of the flat portion of the supply rod and a holding force is applied to the components within the protruding edge, even a plate-like component can be used. It is securely held on the end face of the supply rod. And since the flat part is provided on the tip side of the supply rod, it is possible to arrange the magnet on the side of the part, and the magnet can be slid freely, so that the magnet can be forcibly pulled back. Can be easily realized. With a flat part,
Since the protruding edge is provided at the end, the magnet can be arranged at a location very close to the component within the protruding edge, and the suction and holding of the component can be reliably realized. The effect that can be described from the embodiment itself is that the control member is disposed in the component supply pipe, the component is temporarily stopped, and the magnet is introduced into the protruding edge with another magnet, so that the component is inserted into the protruding edge. The incoming speed can be set optimally, thus minimizing wear of the rim. Since the supply rod has a dual structure of an inner shaft and a hollow shaft, and a holding piece having a magnet built therein is attached to the inner shaft, when the inner shaft is pulled back, the magnet can move along the flat portion without fail. Since the flat portion has flat surfaces formed on both sides so as to cut the hollow shaft, the inner shaft is arranged at the center of the flat portion, and therefore, it is structurally advantageous for the arrangement of the holding piece, and at the same time, the holding piece is However, a configuration that can slide on the plane can be adopted.

[Brief description of the 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 sectional view taken along line (3)-(3) of FIG. 1;

FIG. 4 is a sectional view taken along line (4)-(4) of FIG. 1;

FIG. 5 is a three-dimensional view showing the tip of the flat part.

FIG. 6 is a vertical sectional side view of a holding piece.

FIG. 7 is a side view in which a part of a front end of a flat portion is broken.

FIG. 8 is a perspective view of a part.

FIG. 9 is a three-dimensional view showing an end of a supply rod according to the prior art.

[Explanation of symbols]

 7 supply rod 16 end face 5 part 15 flat part 11 part supply pipe 18 open part 17 protruding edge 22 magnet 36 counterpart member

Claims (1)

(57) [Claims] 1. A feeder in which a plate-like component is supplied in close contact with an end surface of a supply rod, wherein a flat portion is formed at a tip side of the supply rod, and an open portion facing the component supply pipe is provided at the end. In the other part, a protruding edge surrounding the component is formed, magnets for holding the component in the protruding edge are arranged on one side or both sides of the flat portion, and when the supply rod advances to a predetermined position, An apparatus for feeding a plate-shaped component, wherein the magnet is forcibly pulled back and the component is transferred onto a counterpart member.