JPH04286530A - Device for supplying shaft-shaped part - Google Patents

Abstract

PURPOSE:In a shaft-shaped part supplying device which holds the part on the tip face of a supplying rod through magnetic force, to prevent the dislocation caused by inertia force of the shaft-shaped part in its holding position or its fall due to its dead weight when the shaft-shaped part has moved to the tip face of the device. CONSTITUTION:A shaft-shaped part supplying device holds a shaft-shaped part 1 on the tip face 6 of a supplying rod 5 through magnetic force, and is provided with a control member 14 to prevent the oscillatin caused by inertia force of the shaft-shaped part 1, and the control member 14 is provided with a magnet 49.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feeding device in which a shaft-like component is held and fed by magnetic force to the distal end surface of a feeding rod. This invention is particularly suitable for a type in which a shaft-shaped component is transferred from another location toward the distal end surface of the supply rod.

0002

[Prior art and its problems] To the best of the inventor's knowledge, there is no prior art that exactly corresponds to the present invention. Inertial rocking of the shaft-shaped part must be prevented. If this oscillation is left unaddressed, the inertial oscillation of the shaft-like component may exceed the holding magnetic force, causing the component to fall, or even if it is held, the relative position of the supply rod and the shaft-like component may remain constant. This will cause problems in accurate supply to the target location. More importantly, it is necessary to solve the problems caused by the increasing weight of the shaft-like parts, and in particular, the misalignment of the parts due to gravity becomes important.

0003

[Means for Solving the Problems and Their Effects] The present invention has been provided to solve the above-mentioned problems.
Prevents the shaft-like part from inertial swinging when the shaft-like part moves to the end face of the supply rod when the shaft-like part is magnetically held and supplied to the end face of the supply rod. A regulating member is installed to catch the tip of the shaft-shaped component, and a magnet is installed in this regulating member, and the shaft-shaped component that has moved to the tip of the supply rod is One end is attracted by a magnet, and at the same time, the other end, that is, the tip, is received by a regulating member and attracted by a magnet, so that inertial rocking is suppressed and displacement due to its own weight is prevented. It is.

0004

[Embodiment] To explain the first embodiment shown in FIGS. 1 to 5, the shaft-like component here is a projection bolt 1 made of iron, and a flange 3 having a projection 2 for welding.
and a shaft portion 4. The supply rod 5, which moves forward and backward strokes, has a tip end surface 6 (indicated by reference numeral 6 in FIG. 5) that receives the flange 3 in close contact, and the periphery thereof has a shape as shown in FIG. That is, it has a U-shaped configuration consisting of a stopper piece 7 and side wall members 8, 8 provided on the left and right sides of the stopper piece 7, and is provided with an opening 9 for allowing the flange 3 to pass through.

A magnet (permanent magnet) 10 is buried near the tip end surface 6 of the supply rod 5, and is attached to the flange 3 of the bolt.
is attracted and held on the tip surface 6. When the stopper piece 7 is held as shown in FIGS. 1 and 5, the tip of the stopper piece 7 just contacts the shaft portion 4, or there is a slight gap therebetween. Further, the tip surface 6 is inclined with respect to an imaginary plane perpendicular to the axis of the supply rod 5 so that the bolt 1 faces downward. The supply rod 5 is housed in an outer cylinder 11, and a piston rod 13 of an air cylinder 12 coupled to an end of the outer cylinder 11 is connected to the supply rod 5.

[0006] In order to prevent the bolt 1 from swinging due to inertia when the bolt 1 approaches the tip face 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 disposed at a location that does not interfere with the forward and backward 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 it is appropriate that the magnet 49 be located 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. This magnet 18 is embedded in the holding piece 19,
Fix this holding piece 19 to the notch 16 of the outer cylinder 11 with the bolt 2
The magnet 18 is fixed by pressing at 0. Note that it is also possible to replace the magnet 49 with an electromagnet.

In this embodiment, the bolt 1 is inserted into the hole 22 of the iron plate 21 shown in FIG. 5. Therefore, when the supply rod 5 advances to the position shown in FIG. 5 and stops, The attraction force of the magnet 10 must be eliminated to cause the bolt 1 to fall in a circular motion. For this purpose, the supply rod 5 consists 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 attached to the hollow shaft 23 with a length opened in the stroke direction. It passes through the hole 26 and projects 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 the piston rod 28 of the air cylinder 27. It 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, so that the regulating pin 25 is in contact with the lower end of the elongated hole 26, and in this state, the hollow shaft 23
The end face of the inner shaft 24 forms one plane, and constitutes the tip face 6.

The hollow shaft 23 and the inner shaft 24 are made of stainless steel, which is a non-magnetic material, so that the sliding movement of both shafts will not become heavy due to magnetic attraction. magnet 10
Although an example is shown in which the supply rod 5 is made into a permanent magnet, it is also possible to stop this and make the supply rod 5 a single shaft made of iron, passing it through the excitation coil and applying an attractive magnetic force to the tip of the single shaft. The bolt 1 can be released at a desired location by turning off the current to the excitation coil. Similarly,
It is also possible to replace the magnet 18 with an electromagnet.

[0009] A parts supply pipe 32 (
The supply pipe (hereinafter simply referred to as the supply pipe) is installed 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. There is. A stopper member 34 is formed at the distal end of the supply pipe 32 so as to close the pipe end. The lower side of the end portion 33, that is, the tip 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 in a state that it can move back and forth, and the supply pipe 32
The shaft portion 4 of the bolt 1 that has descended is locked in a narrow area between the inner surface 37 of the end portion 33 and the holding piece 36 as shown in the figure, and is in a so-called temporarily locked positioning state. The inner surface 37 of the end portion 33 is provided with a thick wall portion 38 to achieve the shape shown in FIG.
It has a cross-sectional shape suitable for accommodating a shaft portion 4 such as.

A method for moving the holding piece 36 forward and backward is shown in FIG. 2, in which an air cylinder 40 is fixed to a bracket 39 connected to the outer cylinder 11, and its piston rod 41 is connected to the holding piece 36. In addition, in the illustrated embodiment,
This is a case where the supply rod 5 is inclined at about 30 degrees with respect to the vertical line, and the supply pipe 32 is welded (see reference numeral 45) so as to be located at the upper part of the outer cylinder 11.

The operation will be described below, assuming that the bolt 1 is not shown at the tip of the supply rod 5 in FIG. The bolt 1 is in a standby state at the end of the supply pipe 32, and when the holding piece 36 is moved back by the air cylinder 40, the bolt 1 falls and passes through the open part 9 by the attraction force of the magnets 10 and 18. Then, it tries to be forcefully attracted to the tip surface 6. At this time, the shaft portion 4
hits the stopper piece 7, and the tip side of the shaft portion 4 tries to swing counterclockwise due to its inertia, but since the stopper surface 17 of the regulating member 14 catches the tip corner of the shaft portion 4, as described above, No significant vibration occurs. Since the shaft portion 4 is pressed against the stopper surface 17 by the attractive force of the magnet 49, the weight of the component 1 is reduced. In particular, since the magnet 49 is positioned as shown, it cooperates with the inclined stop surface 17 to impart an upward force component to the component 1.

Next, when the supply rod 5 moves forward and the bolt 1 held at its tip comes close to the hole 22, the supply rod 5 stops, and at the same time, the locking piece 29 engages 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. Eventually, the magnet 10 moves away from the flange 3, so that the attractive force against the flange 3 is effectively reduced. The bolt 1 disappears and falls into the hole 22 yen. At this time, the shaft portion 4 moves in an arc while standing vertically while rubbing against the tip of the stopper piece 7,
When the end of the flange 3 passes the tip of the stopper piece 7, the bolt 1 enters the hole 22 smoothly.

In the embodiment shown in FIG. 6, a magnet corresponding to the magnet 10 described above is placed outside the stopper piece 7. Therefore, the magnet 10 is embedded in the sliding piece 42, an elongated hole 43 in the stroke direction is formed in the hollow shaft 23, and a fixing bolt 44 passing through this elongated hole 43 is inserted into the sliding piece 42.
is integrated into the inner shaft 24. As shown in the figure, the regulating member 14 is plate-shaped and is connected to the outer cylinder 11.
The inner surface of the plate-like object is used as a stopper surface 17. A magnet 49 is installed in the same manner as in FIG. Since the operation of the device shown in FIG. 6 can be easily understood from the above-mentioned embodiment, its explanation is omitted.

In the embodiments described above, the bolt 1 is transferred from the supply pipe 32 towards the supply rod 5, but in the embodiment shown schematically in FIGS. This shows a so-called guide rail system in which the object is transported in a hanging manner. The guide rails 46, 46, which are arranged at an angle, are arranged as a pair of two elongated members in parallel, and the bolts slide down with their flanges 3 in a hanging state. A connecting bracket 47 that integrates both rails is fixed to a stationary member 48. Figure 7
Since the supply rods are the same as those in the previous embodiment, they are given the same reference numerals as those in the previous embodiment, and the explanation thereof will be omitted.

[0015]

[Effect] According to the present invention, one end of the shaft-like component transferred to the tip of the supply rod is held by the supply rod by magnetic force, and at the same time, the other end is received by the regulating member. Even long shaft-like parts that are prone to inertial behavior can be held correctly in the correct position, and at the same time, the contact pressure by the magnet is increased and an upward force component is applied to the shaft-like part. Therefore, the relative position of the supply rod and the shaft-like component can always be maintained uniformly, and therefore, the component can be accurately supplied to the target hole. In particular, since the shaft-shaped component is attracted to the regulating member by a magnet, the attraction location is always constant, which is optimal for positioning the supply rod before advancing.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal side view showing the entire device.

FIG. 2 is a sectional view taken along line (2)-(2) in FIG. 1;

FIG. 3 is a sectional view taken along line (3)-(3) in FIG. 1;

FIG. 4 is a three-dimensional view of the tip of the supply rod.

FIG. 5 is a longitudinal side view showing the supply rod in a lowered state.

FIG. 6 is a longitudinal side view showing another embodiment.

FIG. 7 is a side view showing another embodiment.

FIG. 8 is a longitudinal cross-sectional view of the guide rail.

[Explanation of symbols]

5 Supply rod 6 Tip surface 1 Shaft-shaped parts 14 Regulation member 49 Magnet

Claims (1)

[Claims] Claim 1: In a type of feeding rod in which a shaft-like component is held and supplied by magnetic force on the tip surface of the supply rod, when the shaft-like component moves to the tip surface, the shaft-like component swings inertially. 1. A supply device for a shaft-like component, characterized in that a regulating member for preventing the shaft-like component from moving is installed in a state of receiving the tip end of the shaft-like component, and a magnet is installed on the regulating member.