JP2000167730A - Supply device for shaft shape part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To supply a shaft shape part rapidly by installing a hold piece having a regulation surface in the state opening/closing an outlet hole and forming this regulation surface so that one part of parts is positioned to the supply rod advance side of the tip surface when the shaft shape part is engagingly locked by the hold piece temporarily. SOLUTION: Before the bolt transfer, a hold piece 32 is advanced and the outlet hole 31 of the tip of a part supply pipe 28 is closed. When the bolt 1 is supplied to a supply pipe 28 under this state, the direction of the bolt 1 is changed by the contact of the tip of the shaft 4 to the inner surface 33 and the bolt is bumped to a stopper member 30. At this time, the bolt 1 is caught to the regulation surface 34 of the hold piece 32 by the attraction force of magnets 9, 13 and placed to the engagingly locking position temporarily. When the hold piece 32 is retreated to the side by an air cylinder, the bolt 1 is attracted to the tip surface 6 of the supply rod 5 and the shaft 4 is inserted in the recessed part 8 of the stopper piece 7. Thereafter, the bolt 1 is sent to the hole 17 position by the advance of the supply rod 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a feed rod which moves forward and backward by holding a shaft-like component at a distal end face thereof and moving it out, releasing the holding of the shaft-like component at a target position and transferring the shaft-like component. The exit hole of the component supply pipe is opened near the distal end of the supply rod, and the transfer of components from the exit hole to the distal end surface of the supply rod is performed in the field where the magnet is attracted.

[0002]

2. Description of the Related Art An outlet hole of a part supply pipe for transferring a shaft part while releasing the holding of the shaft part at a target position while holding the shaft part at a tip end surface of a supply rod which moves forward and backward. Is open in the vicinity of the tip of the supply rod, and the transfer of parts from the outlet hole to the tip surface of the supply rod is performed by the attraction of a magnet, which is disclosed in Japanese Patent Application No. 3-201572. .

[0003]

According to the above-described structure, it is difficult to move the shaft-like component quickly because the distance from the outlet hole to the tip end surface of the supply rod is long.
Similarly, if the distance is long, the position of the component held by the supply rod may be shifted, and the component is not normally supplied to the target portion.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems.
In the invention of the present invention, the axial part is held and advanced to the distal end surface of the supply rod which moves forward and backward, the holding of the axial part is released at the target location, and the outlet hole of the part supply pipe for transferring the axial part is provided. An opening is provided in the vicinity of the tip of the supply rod, and the component transfer from the outlet hole to the supply rod tip surface is performed by the attraction force of a magnet. A holding piece having a regulating surface is installed in a state where the outlet hole is opened and closed. The regulating surface is formed so that a part of the shaft-shaped component is located on the supply rod advancing side of the distal end surface when the shaft-shaped component is temporarily locked by the holding piece. . Therefore, the temporarily locked shaft-like component is brought as close as possible to the distal end surface of the supply rod by the regulating surface of the holding piece. As a result, when the holding piece is retracted, the shaft-shaped component needs to move only a short distance. A second aspect of the present invention is a component supply pipe for holding a shaft-like component on a distal end surface of a supply rod that moves forward and backward, and moving the supply rod to release the holding of the shaft-like component at a target location and to transfer the shaft-like component. An outlet hole is opened near the tip of the supply rod, and the component transfer from the outlet hole to the supply rod tip surface is performed by the attraction of a magnet. It is characterized in that a concave portion for receiving a component is formed. Therefore, the shaft-shaped component is held in the concave portion at the same time as being held on the distal end surface of the supply rod, so that the shaft-shaped component is conveniently supported at two places, and the component is stably held at the distal end of the supply rod. The property becomes good. Claim 3
In the invention of the present invention, the axial part is held and advanced to the distal end surface of the supply rod which moves forward and backward, the holding of the axial part is released at the target location, and the outlet hole of the part supply pipe for transferring the axial part is provided. An opening is provided in the vicinity of the tip of the supply rod, and the component transfer from the outlet hole to the supply rod tip surface is performed by the attraction force of a magnet. A holding piece having a regulating surface is installed in a state where the outlet hole is opened and closed. The regulating surface is formed such that a part of the shaft-like component is located on the supply rod advancing side of the distal end surface when the shaft-like component is temporarily locked by the holding piece, and is formed on the supply rod. A recess for receiving the shaft-shaped component is formed at the tip of the stopper piece. Therefore, the shaft-like component moves quickly with a short transition distance, and furthermore, with the aid of the concave portion, the tip of the supply rod is stably held, and the operational reliability is improved. According to a fourth aspect of the present invention, in the first aspect, the second aspect, or the third aspect, the component supply pipe is arranged along a stroke direction of the supply rod. The transition of the shaft-shaped part from the part supply pipe to the supply rod becomes even smoother. Claim 5
The fourth aspect of the present invention is characterized in that, in the fourth aspect, the component supply pipe is arranged at an acute angle to the stroke direction of the supply rod, and the same operation as the fourth aspect is obtained.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIGS. 1 to 6 will be described. The shaft-like component here is a long projection bolt 1 made of iron and having a flange 3 having a projection 2 for welding. It consists of a shaft 4. The supply rod 5 having a reciprocating stroke has a distal end surface 6 (indicated by reference numeral 6 in FIG. 2) for receiving the flange 3 in close contact therewith, and the outer peripheral portion thereof has an arc-shaped stopper piece 7 as apparent from FIG. Is formed. A recess 8 is formed at the center of the tip of the stopper piece 7, and receives the shaft 4 as described later. The supply rod 5 is inclined with respect to the vertical line. The bolt 1 has a flange 3 having a diameter of 17 mm and a shaft having a diameter and a length of 7 mm and 40 m, respectively.
m.

A magnet (permanent magnet) 9 is buried near the distal end face 6 of the supply rod 5, and the bolt flange 3 is attracted to and held by the distal end face 6. 1 and 2, the flange 3 is received by the stopper piece 7 when held as shown by the two-dot chain line. 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 housed in the outer cylinder 10, and a piston rod 12 of an air cylinder 11 connected to an end of the outer cylinder 10 is connected to the supply rod 5.

A separate magnet (permanent magnet) 13 is provided to assist the bolt 1 in approaching. The magnet 13 is accommodated in a holding container 14 and covered with a cover plate 15, and the holding container 14 is fixed to a lower end of the outer cylinder 10. Here, it is fixed by welding. The magnet 13 can be replaced with an electromagnet.

In this embodiment, the bolt 1 is connected to a steel plate 16
1 is inserted into the hole 17 of the hollow guide pin which has achieved the above positioning. Therefore, when the supply rod 5 advances to the position shown by the two-dot chain line in FIG. Then, the attractive force of the magnet 9 is eliminated and the bolt 1 must be dropped and inserted. For this purpose, the supply rod 5 has a hollow shaft 18.
And an inner shaft 19 slidably inserted inside thereof, and a regulating pin 20 fixed near the upper end of the inner shaft 19.
Pass through a long hole 21 formed in the hollow shaft 18 in the stroke direction and protrude as shown. An air cylinder 22 is fixed to the outer surface of the outer cylinder 10, and an engagement piece 24 is connected to a piston rod 23 of the air cylinder 22. The engagement piece 24 is formed by a long hole 25 formed in the outer cylinder 10 in the stroke direction. Outer cylinder 1
It protrudes into 0. The tension of the compression coil spring 26 inserted into the hollow shaft 18 acts on the inner shaft 19, whereby the regulating pin 20 hits the lower side of the elongated hole 21. In this state, the end surfaces of the hollow shaft 18 and the inner shaft 19 are The tip surface 6 is formed by forming a flat surface (see FIG. 2).

The hollow shaft 18 and the inner shaft 19 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. Although an example is shown in which the magnet 9 is a permanent magnet, the magnet 9 is stopped, the supply rod 5 is made of a single iron shaft, and this is penetrated into an exciting coil to apply an attractive magnetic force to the tip of the single shaft. It is also possible to release the bolt 1 at a required position by turning off the power to the exciting coil. FIG. 5 shows the excitation coil 27.

The component supply pipe 28 for guiding the bolt 1
(Hereinafter, simply referred to as a supply pipe) is installed in a direction intersecting at an acute angle with respect to the stroke direction of the supply rod 5 as shown in the figure, and its end 29 is disposed near the tip of the supply rod 5. It is. A stopper member 30 is formed at the tip of the supply pipe 28 so as to close the pipe end. The lower side of the end portion 29, that is, the distal end side of the supply rod 5 is formed as an outlet hole 31 as shown in the drawing, and the holding piece 32 is installed in that portion in a state where it can advance and retreat.
The bolt 1 that has descended from the position 8 has its shaft portion 4 locked between the inner surface 33 of the end portion 29 and the holding piece 32 as shown in the drawing, and is in a so-called temporary locking positioning state. The inner surface 33 is curved as shown, and the bolt 1 is connected to the outlet hole 3.
It is designed to approach one.

The holding piece 32 has a regulating surface 3 in contact with the shaft 4.
4 is formed, and the position where the axial component 1 is temporarily locked is set by the installation position of the restriction surface 34. In order to shorten the transition distance of the projection bolt 1, the outlet hole 31
Is arranged as close to the supply rod 5 as possible, and accordingly, the regulating surface 34 of the holding piece 32 is also moved toward the stroke axis of the supply rod 5. In this way, a part of the component, that is, a part of the flange 3 is positioned on the supply rod advancing side of the distal end face 6.

The holding piece 32 is configured to advance and retreat in a direction perpendicular to the paper surface of FIGS. The method of moving the holding piece 32 forward and backward is shown in FIG. 3. The air cylinder 36 is fixed to the bracket 35 connected to the outer cylinder 10, and the piston rod 37 is connected to the holding piece 32. In the illustrated embodiment, the inclination angle of the supply rod 5 with respect to the vertical line is about 30 degrees.
Is welded (see reference numeral 38) so as to be located above the outer cylinder 10.

The concave portion 8 formed in the stopper piece 7 is formed in an arcuate shape as indicated by reference numeral 39 in order to receive the bolt exactly in conformity with the outer peripheral surface of the shaft portion 4 of the bolt. Therefore, the flange 3 is firmly adsorbed to the distal end surface 6, while the shaft portion 4 is tightly received by the arc surface 39 of the concave portion 8, so that the holding stability of the component at the supply rod distal end portion is improved. is there.

A drive means 40 is provided to move the entire apparatus, that is, the outer cylinder 10, the supply rod 5, the air cylinder 11, the supply pipe 28, and the like in an integrated manner toward the hole 17 of the counterpart member. I have. As this means, there are also methods such as rack pinion and screw shaft,
Here, an air cylinder 41 is employed. The air cylinder 41 is firmly fixed to a stationary member 42, and its piston rod 43 is connected to a bracket 44 welded to the outer cylinder 10. The output of the air cylinder 41 causes the entire apparatus to move up and down. The synthetic resin supply hose 45 connected to the supply pipe 28 extends from a parts feeder (not shown). In addition, outer cylinder 1
In order to strongly apply the magnetic force to the bolts 1 and the supply pipe 28, the non-magnetic material, for example, stainless steel, is suitably manufactured.

The operation will be described below.
Before the is transported, the holding piece 32 is advanced to close the outlet hole 31 at the regulating surface 34. The bolt 1 that has entered the supply pipe 28 from the supply hose changes its direction while contacting the inner surface 33 at the tip end of the shaft portion 4 and hits the stopper member 30. At this time, the attraction force of the magnets 9 and 13 acts on the bolt 1, particularly on the flange 3 and the shaft portion 4 near the flange 3. The locking position is set. Next, the holding piece 3
When the cylinder 2 is retracted by the air cylinder 36, the bolt 1 is rapidly moved to the side, and the shaft 4 is received in the recess 8 at the same time as the tip 1 is attracted to the tip surface 6.

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 17, the supply rod 5 stops at the position shown by the two-dot chain line and is apparent from FIG. As described above, the shaft 4 and the hole 17 are concentric with each other, and then the entire apparatus is lowered by the operation of the air cylinder 41, so that the shaft 4 is inserted into the hole 17. At about the same time, the locking piece 24 is pulled back by the air cylinder 22, so that the regulating pin 20 is also pulled back at the same time, and the displacement is transmitted to the magnet 9 via the inner shaft 19, and finally, the magnet 9 is turned into a flange. 3, the suction force on the flange 3 substantially disappears, and the bolt 1
It falls into the inside. The above-described concentric state and the insertion of the shaft portion 4 into the hole 17 are realized by the inclination of the distal end surface 6 described above. 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.

In the embodiment shown in FIG. 7, the supply pipe 28 is parallel to the stroke direction of the supply rod 5.
In this case, the operation is the same as in the previous embodiment. The expression "in a state where the supply pipe is along the stroke direction of the supply rod" in the claims is a general term for both such a parallel case and an acute case. Further, as shown in a two-dot chain line in FIG. 7, there is also a method in which the component supply pipe 28 is installed in a direction orthogonal to the stroke direction of the supply rod, and the bolt 1 is transferred inside the supply pipe in a so-called neck suspension type. .

[0018]

According to the present invention, the position of the temporary stop of the shaft-like component in the supply pipe outlet hole, that is, a part of the shaft-like component is reduced by the supply surface of the supply rod due to the attraction force of the magnet and the regulating surface of the holding piece. Since it is located on the supply rod advancing side of the distal end surface, the transition distance from the position of the temporary locking to the supply rod distal end surface is shortened, and therefore, the components have relatively large dimensions and large mass as described above. Even if it is a magnet, the magnet attracting force acts strongly on the component, and the magnet quickly moves to the supply rod tip surface. If such speed is poor, the shaft-shaped part will be shifted to a position shifted by its gravity, which is disadvantageous for accurate part supply.

At the distal end of the supply rod, one end of the shaft-like component is held at the distal end surface and the other portion is received in the recess of the stopper piece, so that the shaft-like component is held at two places. The holding stability is improved, and parts do not shift or drop during operation. Further, since the component supply pipe and the stroke direction of the supply rod are in the above-mentioned "aligned" relative positional relationship, the component transfer distance from the outlet hole of the component supply pipe to the supply rod tip surface is reduced. Can be very advantageous for quick transition.

[Brief description of the drawings]

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

FIG. 2 is an enlarged longitudinal sectional side view of a main part 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 front view showing a distal end portion of a supply rod.

FIG. 6 is a view taken in the direction of the arrow (6) in FIG. 2;

FIG. 7 is a longitudinal sectional side view showing another embodiment.

[Explanation of symbols]

 Reference Signs List 5 supply rod 6 distal end surface 1 shaft-shaped component 28 component supply pipe 31 outlet hole 13, 9 magnet 34 regulating surface 32 holding piece 7 stopper piece 8 recess

Claims (5)

[Claims] An outlet hole of a component supply pipe for holding a shaft component at a tip end surface of a supply rod that moves forward and backward to release the shaft component at a target location and transferring the shaft component. Is opened in the vicinity of the distal end of the supply rod, and in the type in which the component transfer from the outlet hole to the supply rod distal end surface is performed by the attraction force of the magnet, a holding piece having a regulating surface is opened and closed with the outlet hole. It is characterized in that the regulating surface is formed such that a part of the shaft part is located on the supply rod advance side of the tip end surface when the shaft part is temporarily locked by the holding piece. Equipment for supplying shaft-shaped parts. 2. An outlet hole of a component supply pipe for holding the shaft-like component at the tip end surface of the supply rod performing the reciprocating operation and for releasing the holding of the shaft-like component at a target position and transferring the shaft-like component. Is opened near the tip of the supply rod, and the component transfer from the outlet hole to the tip surface of the supply rod is performed by the attractive force of the magnet. A supply device for a shaft-shaped component, wherein a receiving recess is formed. 3. An exit hole of a component supply pipe for holding and advancing a shaft-like component at a tip end surface of a supply rod that moves forward and backward, releasing the shaft-like component at a target position, and transferring the shaft-like component. Is opened in the vicinity of the distal end of the supply rod, and in the type in which the component transfer from the outlet hole to the supply rod distal end surface is performed by the attraction force of the magnet, a holding piece having a regulating surface is opened and closed with the outlet hole. This regulating surface is formed such that a part of the shaft-shaped component is located on the supply rod advance side of the distal end surface when the shaft-shaped component is temporarily locked by the holding piece. A shaft part supplying device, wherein a concave part for receiving the shaft part is formed at a tip end of the formed stopper piece. 4. The method according to claim 1, 2 or 3.
, Wherein the component supply pipe is arranged along a stroke direction of the supply rod. 5. The apparatus according to claim 4, wherein the component supply pipe is disposed at an acute angle to the stroke direction of the supply rod.