JPH08617B2 - Parts feeder - Google Patents

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, and more particularly, to a component supply device that moves a component to a target position by a component supply rod that moves forward and backward.

[0002]

2. Description of the Related Art As a conventional technique, there is an advancing / retreating type feed rod, and a means for holding a component including a hole and a chuck mechanism is provided at the tip of the rod, and a parts feeder or the like is provided on the axis of the feed rod. A mechanism for temporarily locking parts such as bolts that have moved from the position is provided, the supply rod is advanced toward the part in this locked state, and the part is held in the holding means to reach the target point. It is designed to let you.

[0003]

According to the prior art as described above, it is necessary to accurately position the component on the axis of the supply rod and to temporarily lock the component securely and securely. Since a single mechanism must be realized on the axis of the rod, the mechanism itself must be provided with high accuracy, and if the accuracy is slightly reduced, the engagement between the holding means of the supply rod and the component However, there is a problem that parts are dropped off because the operation is not performed normally. Further, in order to temporarily lock the components on the axis of the supply rod, the installation space of the temporary locking mechanism is greatly restricted, and the mechanism needs to be installed at a location considerably forward of the tip of the supply rod. For this reason, there is a problem that the entire apparatus becomes a long form.

[0004]

Means for Solving the Problem and Its Action The present invention is provided to solve the above-mentioned problems, and an end portion of the component supply pipe is provided in the vicinity of the axis of the supply rod which moves forward and backward. A feed member for the component which is arranged and which has an advancing and retracting movement at this end, means for holding the component in a fixed position is attached to this feed member, and the feed rod is positioned by the advanced feed member Means for holding the parts
The supply pipe and the supply member are integrated into the axis of the supply rod.
The feature is that a structure is added so that it can move back and forth along .

By the means as described above, the end of the component supply pipe
The supply member holds the part firmly in the
Afterwards, the parts are on the axis of the supply rod due to the advance of the supply member.
Component supply pipe and supply member
Together with and move along the axis of the supply rod.
This time, parts are held on the feed rod side by the holding means of the feed rod.
Is held in.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the embodiment shown in FIGS. 1 to 4 will be described. First, a flexible component supply hose 1 extending from a parts feeder (not shown) is provided with a component supply pipe 2.
It is connected to the. The supply rod 3 performs an advancing / retreating operation and has an axis 4, and the component supply pipe 2 is arranged in the vicinity of the axis 4 at an acute angle with respect to this axis.
A guide member 5 having a U-shaped cross section, which is open upward, is firmly fixed to the component supply pipe 2 via a bracket 6, and an air cylinder 7 is firmly connected to the guide member 5. A supply member 8 is inserted into the guide member 5 in a retractable manner, and a piston rod 9 of an air cylinder 7 is connected thereto. The illustrated component 10 is a bolt with a flange, which is composed of a shaft portion 11 and a circular flange 12, and the flange 1 is provided on the upper surface of the supply member 8.
2 is provided with a concave portion 14 having an arc portion 13 that matches 2,
As shown, the right side is open.

The supply member 8 is provided with a means for holding the component 10 in a fixed position. As a specific method, various methods such as a method using a spring component and a chuck mechanism can be considered. Here, the case of the magnet (permanent magnet) 15 is illustrated. A hole is formed in the supply member 8, a magnet 15 is inserted into the back of the hole, and then a plug 16 is press-fitted. The component supply pipe 2 is provided with an elongated opening 17 which opens on the side of the axis 4 of the supply rod, through which the shaft 11 passes.

The supply rod 3 is connected to a piston rod (not shown) of an air cylinder 18, which is firmly fixed to a stationary member 19. The supply rod 3 is provided with a receiving hole 20 for receiving the shaft portion 11 and is provided with a means for holding a component. Various means such as a method using a leaf spring can be considered for this means, but the case of the magnet (permanent magnet) 21 is illustrated here. The magnet 21 is pushed into the interior of the accommodation hole 20. The part 10 held by the supply rod 3 has an axis 4
It is press-fitted into the recessed hole 23 of the counterpart component 22 fixed above.

Another air cylinder 24 is fixed to the stationary member 19 and is a bracket 25 welded to the component supply pipe 2.
A piston rod 26 of an air cylinder is connected to the.
This is because the component supply pipe 2 and the supply member 8 are integrally moved to and fro along the axis 4 of the supply rod.
The installation posture of 4 is set.

In order to make the attraction force of the magnets 15 and 21 more effective, the component supply pipe 2, the supply member 8, the guide member 5, the supply rod 3 and the like are made of a non-magnetic material such as stainless steel. Is appropriate. In addition, supply rod 3
Although it is illustrated as moving up and down in the vertical direction, it is possible to make the rod stroke in an oblique direction or a horizontal direction by changing the mounting direction of the entire apparatus of FIG.

The operation of the above embodiment will be described. When the component 10 is sent from the component supply pipe 2 to the position shown in FIG. 2, the flange 1 is inserted into the recess 14 of the supply member 8 waiting.
2 are stuck by the magnet 15. During this fitting, the flange 12 fits exactly into the recess 14 so that the relative position of the supply member 8 and the component 10 is accurately determined. Next, the supply member 8 advances by the action of the air cylinder 7, and the part 10 is aligned with the axis 4 (see FIG. 2).
When the supply member 8 and the component supply pipe 2 are integrally pulled up by the action of the air cylinder 24, the shaft portion 11 enters the accommodation hole 20 and the magnet 11 21 suction force. When the supply member 8 is retracted by the air cylinder 7 in this state, the flange 12 slides on the surface of the recess 14 to hold the component 10 in the accommodation hole 20, and the supply rod 3 descends as it is. By doing so, it is press-fitted into the recessed hole 23 of the counterpart component as shown in FIG.

[0012]

FIG. 5 shows a modification of the means for holding the parts provided on the supply member in a fixed position. The sphere 27 is exposed in the recess 14 and elasticity is imparted by a coil spring 28. . Therefore, since the flange 12 receives the elasticity of the sphere 27 on the outer peripheral portion, the flange 12 is brought into close contact with the arc portion 13 and positioning is achieved. FIG. 6 shows a modification of the means for holding the parts of the supply rod, in which a leaf spring 29 is fixed in the receiving hole 20, whereby the shaft 11 is held. In FIG. 7, an opening 30 is provided on the left side of the accommodation hole 20 and a magnet (permanent magnet) 31 is attached to the side of the supply rod 3, and the component 1 on the supply member 8 is shown.
0 passes through the opening 30 and enters the accommodation hole 20 and the magnet 31
Held in. In this case, it is necessary to set the attraction force of the magnet 31 to a value stronger than that of the magnet 15.

FIGS. 8 and 9 show an electromagnet type in which the permanent magnets 21 and 15 are stopped. The supply rod 3 and the supply member 8 are made of iron, which is a magnetic material, and are passed through the excitation coils 32 and 33. It was made. FIG. 10 shows a case where the supply rod itself is an electrode of the projection welding machine, the movable electrode 34 is connected to the supply rod 3, and the accommodation hole 20 and the magnet 21 are installed in the same manner as described above. . A projection 35 for welding is formed on the flange 12 of the component 10.
And a steel plate component 37 is mounted on the fixed electrode 36.

[0015]

According to the present invention, the component is held at a fixed position on the supply member at a position apart from the axis of the supply rod, and in this state, the component is moved to the axis of the supply rod. , The relative position of the parts and the supply rod is always kept accurate, and from that state, the parts supply pipe and supply
Moves along the axis of the feed rod as a unit
The parts are the holding means of the supply rod.
Can be reliably reached, and a reliable supply operation can be obtained. Since the operation sequence is as described above, it is possible to employ the mechanism adopted therein as simple and easy to improve the accuracy as is shown in the embodiment, and it is also advantageous in terms of space. Furthermore, since the supply member is kept waiting at the end of the component supply pipe, the component can be moved and positioned very smoothly.

[Brief description of drawings]

FIG. 1 is an external side view of the entire apparatus.

FIG. 2 is a vertical sectional side view showing an enlarged main part.

FIG. 3 is a front view of an end of a component supply pipe.

FIG. 4 is a plan view of a supply member.

FIG. 5 is a plan view showing an example of another supply member.

FIG. 6 is a vertical sectional side view showing another example of a supply rod.

FIG. 7 is a vertical sectional side view showing an example of another supply rod.

FIG. 8 is a vertical sectional side view showing another example of a supply rod.

FIG. 9 is a vertical sectional side view showing an example of another supply member.

FIG. 10 is a vertical cross-sectional side view when the supply rod is an electrode.

[Explanation of symbols]

3 supply rod 4 axis line 2 component supply pipe 8 supply member 10 component 15, 14, 27, 28, 33 means for holding the component in a fixed position 21, 20, 29, 30, 31 means for holding the component

Claims (1)

[Claims] 1. An end portion of a component supply pipe is arranged in the vicinity of an axis of a feed rod that moves forward and backward, and a supply member for the component that moves forward and backward is provided at this end, and the component is fixed at a fixed position. Means for holding the parts positioned by the advancing supply member is provided on the supply rod, and the part supply pipe and the supply member are integrally provided.
A structure is added so that it can move back and forth along the axis of the feed rod.
Component supply apparatus characterized by being.