JP2665634B2 - Feeding device for shaft parts - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding device of the type in which a shaft-like component is held and supplied to a distal end surface of a feeding rod. In particular, the tip of the supply rod that is inclined with respect to the vertical
In the field of holding and supplying shaft-shaped parts in an appropriate state on the end face
It is preferably used in such a case.

[0002]

2. Description of the Related Art Prior art, which exactly corresponds to the present invention, is not found to the knowledge of the inventor, but when the shaft-shaped part is moved to the tip of the supply rod of magnetic force, The shaft parts must be able to move reliably. In order to ensure that the long shaft-shaped part is inserted into the hole of the counterpart member, accurate supply to the target location will be hindered unless any positive measures are taken. . To do this, use the tip of the supply rod
The important issue is how to hold the shaft part
And how the shaft-shaped part
An important issue is how to take the position. In addition, the entire device
Consideration must also be given to the problem of interference between
No.

[0003]

[Means for Solving the Problems and Their Functions] The present invention has been provided to solve the problems described above.
In the type where the supply rod is inclined with respect to the vertical line, and the axial part is held at the tip end surface of the supply rod and the axial part is released at the target position, the stroke direction of the supply rod is The supply pipe is arranged at an acute angle to the supply pipe, and the outlet hole of the shaft-like component of the supply pipe is opened near the tip of the supply rod.
Axis part to a virtual plane perpendicular to the axis of the pad
The supply rod is inclined so that the
When the advancing of the shaft stops, the shaft-shaped part and the hole of the
Driving means for moving the entire apparatus toward the hole of the counterpart member when the supply rod has advanced to the target position is provided ,
After the shaft-shaped part is inserted, the shaft-shaped part of the supply rod is
It is characterized by releasing the holding, the transition of the axial component from the component supply pipe to the supply rod tip is ensured,
Because the tip surface of the supply rod is inclined as described above
The shaft part faces downward and the supply rod stops moving.
The shaft-shaped part and the hole of the mating member are concentric.
You. The movement of the entire device causes the hole
It is inserted straight and smoothly into the inside. This inserted state
Release the holding of the supply rod shaft part,
The supply of the shaft-shaped parts is completed.

The embodiment shown in FIGS. 1 to 4 will be described. The shaft-like component here is a long projection bolt 1 made of iron, which includes a flange 3 having a welding projection 2 and a shaft portion 4. Made up of The supply rod 5 which makes a reciprocating stroke has a distal end surface 6 (FIG.
Is indicated by reference numeral 6), and the periphery thereof has a shape as shown in FIG. That is, the stopper piece 7 has a U-shaped configuration including side members 8 provided on the left and right sides thereof, and an opening 9 for allowing the flange 3 to pass therethrough is provided. The supply rod 5 is shown in FIG.

As is clear from the description of the section,
It is inclined with respect to.

A magnet (permanent magnet) 10 is buried near the distal end face 6 of the supply rod 5, and a flange 3 of the bolt is provided.
Is held by suction on the tip end surface 6. In the state where the flange 3 is held as shown in FIG. 1, the flange 3 is received by the stopper piece 7. Further, the distal end surface 6 is inclined such that the bolt 1 faces downward with respect to an imaginary plane perpendicular to the axis of the supply rod 5. The supply rod 5 is accommodated in the outer cylinder 11, and a piston rod 13 of an air cylinder 12 connected to an end of the outer cylinder 11 is connected to the supply rod 5.

In order to prevent the bolt 1 from oscillating by inertia when the bolt 1 enters the front end surface 6,
The regulating member 14 is installed in a stationary state. A regulating member 14 is fixed to a bracket 15 having a U-shaped cross section (see FIG. 3), and the bracket 15 is welded to a notch 16 of the outer cylinder 11. The stopper surface 17 of the regulating member 14 is arranged at a position that does not interfere with the advance / retreat stroke of the supply rod 5 and is a plane parallel to the stroke direction. A magnet 49 is embedded in the regulating member 14, and its position is preferably slightly above the contact point of the shaft portion 4 as shown in the figure. Another magnet (permanent magnet) 18 is provided to assist the entry of the bolt 1. The magnet 18 is embedded in a holding piece 19, and the holding piece 19 is fixed to the notch 16 of the outer cylinder 11 by a fixing bolt 20.
To fix the magnet 18. The magnet 49 can be replaced with an electromagnet.

In this embodiment, the bolt 1 is inserted into the hole 22 of the hollow guide pin for positioning the iron plate 21 shown in FIG.
When the supply rod 5 advances to the place shown by the two-dot chain line and stops, the entire apparatus is lowered as described later,
The attraction force of the magnet 10 must be eliminated to allow the bolt 1 to drop and be inserted. For this purpose, the supply rod 5 is composed of a hollow shaft 23 and an inner shaft 24 slidably inserted inside the hollow shaft 23, and a regulating pin 25 fixed near the upper end of the inner shaft 24 is opened to the hollow shaft 23 in the stroke direction. It projects through the hole 26 as shown. An air cylinder 27 is fixed to the outer surface of the outer cylinder 11, and an engagement piece 29 is connected to a piston rod 28 of the air cylinder 27. The engagement piece 29 is formed in the outer cylinder 11 by a long hole 30 formed in the stroke direction.
And protrudes into the outer cylinder 11. The tension of the compression coil spring 31 inserted into the hollow shaft 23 acts on the inner shaft 24, whereby the regulating pin 25 contacts the lower side of the elongated hole 26. In this state, the end surfaces of the hollow shaft 23 and the inner shaft 24 The distal end surface 6 is formed by forming a flat surface.

The hollow shaft 23 and the inner shaft 24 are made of stainless steel, which is a non-magnetic material, so that sliding of both shafts does not become heavy due to magnetic attraction. Magnet 10
Is shown as an example of a permanent magnet, but it is possible to stop this and make the supply rod 5 a single shaft made of iron and pass it through the exciting coil to apply an attractive magnetic force to the tip of the single shaft. Then, the bolt 1 can be released at a required position by turning off the power to the exciting coil. Similarly,
It is also possible to change the magnet 18 to an electromagnet.

The parts supply pipe 32 for guiding the bolt 1
(Hereinafter, simply referred to as a supply pipe) is installed in a direction crossing at an acute angle to the stroke direction of the supply rod 5 as shown in the figure, and its end 33 is disposed near the tip of the supply rod 5. It is. A stopper member 34 is formed at the tip of the supply pipe 32 so as to close the pipe end. The lower side of the end portion 33, that is, the distal end side of the supply rod 5 is formed as an outlet hole 35 as shown in the figure, and a holding piece 36 is installed in that portion so as to be able to advance and retreat.
As shown in the figure, the shaft portion 4 of the bolt 1 that has descended from the position 2 is locked at a narrow place between the inner surface 37 of the end portion 33 and the holding piece 36 as shown in the drawing, and is in a so-called temporary locking positioning state. The inner surface 37 of the end portion 33 has a cross-sectional shape suitable for accommodating the shaft portion 4 as shown in FIG.

A method of moving the holding piece 36 forward and backward is shown in FIG. 2. The air cylinder 40 is fixed to a bracket 39 connected to the outer cylinder 11, and the piston rod 41 is connected to the holding piece 36. In the illustrated embodiment,
When the inclination angle of the supply rod 5 with respect to the vertical line is about 30 degrees
That is, the supply pipe 32 is welded (see reference numeral 45) so as to be positioned above the outer cylinder 11.

Driving means 50 is provided for moving the entire apparatus, that is, the outer cylinder 11, the supply rod 5, the air cylinder 12, the supply pipe 32, and the like, integrally, toward the hole 22 of the counterpart member. . As this means, there are methods such as a rack pinion and a screw shaft, but here, the air cylinder 51 is employed. The air cylinder 51 is firmly fixed to a stationary member 52, and its piston rod 53 is connected to a bracket 54 welded to the outer cylinder 11. The output of the air cylinder 51 causes the entire apparatus to move up and down.

Hereinafter, the operation will be described. It is assumed that the bolt 1 is not shown at the tip of the supply rod 5 in FIG. At the end of the supply pipe 32, the bolt 1 is in a standby state. When the holding piece 36 is retracted by the air cylinder 40, the bolt 1 falls and passes through the opening 9 by the attraction force of the magnets 10 and 18. As a result, the tip surface 6 is likely to be attracted. At this time, the flange 3 hits the stopper piece 7, and the tip of the shaft 4 tries to swing counterclockwise due to its inertia, but the stopper surface 17 of the regulating member 14 receives the corner of the tip of the shaft 4. Therefore, the swing as described above does not occur. Then, the shaft portion 4 is pressed against the stopper surface 17 by the attraction force of the magnet 49, so that the component 1
To reduce its own weight. In particular, since the magnet 49 is set at the position shown in the drawing, the magnet 1 is provided with an upward force component in cooperation with the inclined stopper surface 17.

Next, when the supply rod 5 moves forward and the bolt 1 held at the tip of the supply rod 5 comes close to the hole 22, the supply rod 5 stops at the position shown by the two-dot chain line, and is apparent from FIG.
The shaft portion 4 and the hole 22 are concentric as before, and the shaft portion 4 is inserted into the hole 22 by the operation of the air cylinder 51 causing the entire apparatus to descend. At about the same time, since the locking piece 29 is pulled back by the air cylinder 27, the regulating pin 25 is also pulled back at the same time, and the displacement is transmitted to the magnet 10 via the inner shaft 24, and finally, the magnet 10 is 3, the suction force on the flange 3 substantially disappears, and the bolt 1 falls into the hole 22. The above-mentioned concentric state or the shaft part 4 is the hole 2
In order to be inserted into 2, the above-mentioned inclination of the tip surface 6 is essential
It is realized I Do with the requirements. Since the method for realizing the above-described operation sequence can be easily implemented by conventionally known sequence control, the description of the operation air control of the air cylinder and the like is omitted.

[0014]

According to the present invention, the stroke direction of the supply rod and the supply pipe have an acute relative positional relationship, and the outlet hole of the supply pipe is opened near the tip of the supply rod. Since the movement of the shaft-like component from the supply pipe toward the supply rod tip can be smoothly and reliably achieved, and after the supply rod has advanced to the destination, the entire device is moved by the driving means. It is positively inserted into the hole of the counterpart member. Therefore, the transition of parts and insertion into holes are achieved by the above series of operations,
The supply of parts is realized very smoothly and with high reliability. What is particularly important is that if the shaft-shaped part is a long bolt as shown in the figure, the thread may catch on the upper edge of the hole of the counterpart member and may not be completely inserted. If the entire device is moved as in the present invention, the bolts and the like are positively and forcibly inserted into the holes halfway, and the operation reliability can be significantly improved. The above benefits can be obtained
After the shaft-like part is inserted into the hole of the
It is effective to release the holding of the shaft part held in
He is listening. In other words, if the shaft part is abnormal
Moving in the opposite direction completely disappears before holding the parts.
It means to cancel, and as the behavior control of the shaft part
It will be ideal. Smooth operation as described above is obtained
This is because the following items are important.
You. That is, the supply rod in the present invention is
The parts are inclined with respect to
Measures must be taken. That's it
Assuming such a situation, the tip of the supply rod
Axis part to an imaginary plane perpendicular to the axis of the pad
The product is tilted so that the
When the pad stops moving, the shaft-shaped part and the hole in the
Are inclined so that they are concentric.
When is held on the end face of the supply rod ,
Proper component posture in preparation for the other member's entry into the hole
Becomes And when the supply rod stops moving
Is that the shaft part and the hole of the mating member are concentric
By moving the entire device, parts can be inserted smoothly.
Is realized, and the above-mentioned thread
The problem can be completely solved. Further attention
The effect that must be addressed is to move the entire device
In order to prevent interference with other components
Must be done. The device of the present invention is
Stroke direction and the supply pipe are arranged in an acute relationship.
Therefore, the overall device is a so-called slim form
And thus what moves such
Therefore, it is very effective in preventing interference with surrounding members.
It is profitable. If the above acute relationship is obtuse
, The space occupied by the entire device is significantly large
That is, the problem of interference with the surroundings cannot be solved.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing the entire apparatus.

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 three-dimensional view of a supply rod tip.

[Explanation of symbols]

Reference Signs List 5 supply rod 6 tip surface 1 shaft-shaped part 32 part supply pipe 35 outlet hole 22 hole of counterpart member 50 driving means

Claims (1)

(57) [Claims] The feed rod is inclined with respect to a vertical line.
In addition , in the type where the shaft-like component is held on the tip end surface of the supply rod and the shaft-like component is released at the target position, the component supply pipe is arranged at an acute angle to the stroke direction of the supply rod. An outlet hole of the shaft-shaped part of the supply pipe is opened near the distal end of the supply rod,
An imaginary plane whose tip surface is perpendicular to the axis of the supply rod
If the shaft part is tilted so that it faces downward
In both cases, when the supply rod stops moving,
It is inclined so that the hole of the one member becomes concentric with the hole,
A drive means is provided for moving the entire apparatus toward the hole of the counterpart member when the supply rod has advanced to the destination .
And the supply lock is inserted after the shaft-shaped part is inserted into the hole.
A shaft part supplying apparatus for releasing the holding of a shaft part of a shaft .