JPH0295619A - Feeder for axial parts with heads - Google Patents

Abstract

PURPOSE:To provide smooth feed for axial parts by forming a feed passage in parallel to a feed rod and an inclined passage connecting the end portion of the feed passage to that of the feed rod in the part feed device for projection bolts and so forth. CONSTITUTION:The bolt 3 which has passed through a feed passage 9 passes through a slit 13 and a head 2 comes in contact with a sliding surface 18, so that it is kept in a hung condition. When an inhibiting member 16 retracts in the orthogonal direction to the face of a sheet of paper from the condition as shown by a full line in a figure, the head 2 of the bolt 3 slides down toward the end of feed rod 4 and is drawn in by the attractive force of a magnet 36 to hold it as shown by two-dot chain lines. Then the feed rod goes out and when the end of the bolt portion 1 comes near a steel plate part 8, the rod 4 stops, at which regulating pin 26 stops just before a stopper 32. When the stopper 32 is then pulled up by the action of an air cylinder 34, the bolt 1 drops in the guide hole 6 from its head for complete insertion.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a supply device for a shaft-shaped component with a head such as a projection bolt, and is suitable for supplying a bolt to an electrode for projection welding. 6 (W) Conventional technology When a shaft-like component with a head is held at the tip of a supply rod and supplied to a target location, the conventional method is to hold a shaft-shaped component with a head at the tip of a supply rod and use a long shaft in a direction perpendicular to the forward and backward direction of the supply rod. A guide shooter was installed, and the head of the component was locked to the guide shooter and moved to the tip of the supply rod in a state where the head of the component was suspended from the shaft. Problems In the conventional example described above, since the supply rod and the long guide shooter are perpendicular to each other, the space occupied by the rod is extremely large, and the rod may interfere with surrounding equipment or be impossible to install. In addition, if the guide shooter is long, the problem arises that the head part or the inside of the guide shooter is too tight and smooth parts transfer cannot be achieved. The present invention is provided to solve one or more of the problems mentioned above.
The invention of item 1 is for holding parts at the tip of a supply rod and feeding them to a target location, in which a supply passage is installed almost parallel to the supply rod, and the tip of the passage and the tip of the supply rod F are connected. The connecting transition passage is characterized in that the shaft-like part is transferred from the supply passage to the upper end of the supply rod through the transition passage. This specifies the arrangement for the next month in an inclined state, with the supply passage running along the upper side of the supply rod, and the movement of parts is facilitated by utilizing the inclination of the transition passage.

W! Issue #4 in Item 13 is different from the invention in Item 2, and is characterized in that a restraining member for preventing the swinging of the parts locked in the transition passage is provided in a movable state. ,
The stopping position of the part is maintained by the stopping member, and the part is allowed to slide down by retreating the stopping member. (E) 5j! Embodiments The embodiments shown in FIGS. 1 to 5 will be explained first starting from the inclined type. The shaft-shaped component with a head treated here has a disk-shaped head portion 2 on a bolt portion 1. It is an integrated projection bolt 5, which is supplied and inserted into the guide hole 6 of the fixed electrode 5 by the supply rod 4. 8 is placed. The supply rod 4 is arranged in an inclined position as shown in the figure, and there are various structural types of the supply rod itself, such as those with a chuck, but in Fig. 1, a type using a water-immersed magnet is shown. The supply passage 9 of the n bolt 3 is formed by the supply pipe 10, illustrating the i? The passage 9 is arranged substantially parallel to the co-feeding rod 4 at the top II (to the left [of the plane of the first drawing]). At the lower end of the supply pipe 10 is a short guide shooter 11-!
% welding, and a transition passage 12 is formed within this guide shooter 11. 11 At the bottom of the supply pipe 10 there is a third
As is clear from the figure, a guide piece 10a having a semicircular cross section is provided. As is clear from FIG. 2, the guide shooter 11 has a rectangular cross-sectional tube with a slit 1312 orders of magnitude through which the bolt portion 1 can pass, and communicates with the supply passage 9 through a communication hole 14.

When temporarily locking the bolt 5 at the end of the transition passage 12, the bolt must be held in the correct position. Especially when the angle of inclination is large, consideration of this point becomes important. In the embodiment, a device 1Ilt- for this purpose is adopted, so this point will be explained with reference to FIG.
The head part 2 of the bolt 3Fi coming down the supply passage 9
At that time, the head part 2 is attached to the corner part 15 in order to rotate the bolt 3 in the vertical direction as shown in FIG. interfere.

In order to prevent this, the posture of the bolt 3 is controlled as shown in state B by acting on the restraining member 161.

The restraining member 16 may be any member as long as it is a stopper member that moves back and forth to the illustrated position.

The one shown in the figure is realized by the screw 1 of the air cylinder 17. The air cylinder 17 is the guide shooter 1.
A restraining member (piston rod) 16 fixed to the side surface of the port 1 and extending therefrom enters the lower side of the bolt 81 to prevent the counterclockwise rotation of the port 60, thereby maintaining the inner guide in the shape 9B. The part where the head part 2 slides on the shooter 11,
That is, the sliding surface 18 is as shown in FIG.

An inclined portion 19 is provided only at a location corresponding to the supply passage 9. This is represented by an angle θ. By providing such an inclined portion 19, the angle s of the head portion 2 can be made even slightly.
It moves away from 15. In addition.

A supply hose 2o extending from a parts feeder (not shown) is connected to the supply pipe 10, and this hose can be arbitrarily bent and arranged. When I explain about it.

The rod 4 is housed in an outer cylinder 21, an air cylinder 22 is coupled to the upper end of the outer cylinder 21, a guide shooter 11 is welded to the lower end of the outer cylinder, and the entire cap passageway 9 is connected to the rod 4.
is arranged above the supply rod 4, so that the passage 9 and the rod 4 are laid out in a substantially parallel manner.

The upper end of the supply rod 4 is connected to a piston rod 23 of an air cylinder 22, and the lower end of the supply rod 4 corresponds to the transition passage 12. The supply rod 4 is composed of a hollow tube 24 and an inner shaft 25 that is slidably fitted into the hollow tube 24, and a regulating pin 26 fixed to the inner shaft 25 has a long hole formed in the hollow tube 24 in the stroke direction. 27 and protrudes as shown. The long blade of the coil spring 28 incorporated in the inner number ζ of the hollow tube 24 acts on the inner shaft 25, so that the regulating pin 26 is in contact with the lower end of the elongated hole 27. In this state, the hollow tube 24 and the inner The lower surface of the shaft 25 forms a single plane as shown in the figure. A magnet (permanent magnet) 29 is embedded in the tip of the inner shaft 25, which allows the bolt 6 to be attracted and held at the tip of the supply rod. being done. The protrusion 30 provided on the hollow tube 24 is the ninth piece that prevents the pole l-3 from tilting.

A long hole 31 is formed in the outer cylinder 21 in the stroke direction.

The locking piece 32 penetrated there is fixed to the piston rod 33, and the air cylinder older brother of the rod is fixed to the outer cylinder 21.The relative position of the 4gA locking piece 32 and the regulating pin 26 is It is set so that the regulating pin 26 is just about to collide with the locking piece 52 when it advances a predetermined stroke.

A guy F plate 35 is welded to the base of the outer cylinder 21.

The head portion 2 of the bolt is pulled in by a magnet (permanent magnet) 36 embedded therein.

After passing through the supply passage 9, the friend bolt 3 passes through the slit 1!1 and hits the head portion 2 on the sliding surface 18, resulting in a hanging state. Bolt part 1 has slit 13'! When you treat kd,
The restraining member 16 is in the advanced position as shown in Fig. 2, thereby completely preventing the state A shown in Fig. 4. - The restraining member 16 is moved from the state shown by the dormitory line in Fig. 1 to the paper surface. When retreating in the orthogonal direction, the bolt 3 has its head 2
As it slides down the sliding surface 18, it is drawn toward the tip of the supply rod 4 by the suction force of the same magnet T-36, and is sucked and held by the magnet 29 as shown by the chain line.

Next, when the supply rod 4 advances and comes close to the tip of the belt portion 1 or the steel plate component, the rod 4 stops advancing, and at this time, the regulating pin 26 stops just before the locking piece 32. . After that, when the locking piece is pulled up by 5f11 of the air cylinder 34, its displacement is caused by the restriction pin 26. The force is transmitted to the inner shaft 25, and the magnet 29 moves away from the head part 2, thereby substantially eliminating the suction force on the bolt 3, and it falls from the tip of the bolt part 1 into the kite hole 6 while standing up. and complete the insertion. The behavior of Pol)-6 as described above exhibits a movement trajectory as shown by the arrow in Figure 5. There are inventions that can be considered as concepts, regardless of whether they have an inclination or not.

In addition, in cases where the supply passage 9 and the supply rod 4 are turned vertically and the injury is horizontal, an air nozzle 38 is attached to the supply pipe 10 as an auxiliary means in such a case, and air is supplied from its nozzle 39. The bolt 5 is moved in the flow.

FIG. 6 shows another example of the method of holding the bolt 3 at the tip of the supply rod 4, in which the supply rod 4t is passed through the excitation coil 37 and a permanent magnet as described above is stopped. It is.

(f) Effects According to the present invention, since the behavior of the one-wheeled part is as shown in FIG. Excessive space occupancy can be prevented@ Also, since the feeding passage is installed above the inclined feeding rod almost parallel to the rod, and these two are connected by the φ line passage, the entire device is long and narrow. Since it fits within the occupied space and the behavior of the shaft-shaped parts is as shown in Figure 5, the space required for the device is extremely small, and therefore its usability in narrow spaces is greatly improved. Furthermore, when the slope of the transition passage is large.

By installing a restraining member to prevent the rocking noise of the parts, the shaft-shaped part is stopped in the transition passage in the correct position, and the shaft-like part is then smoothly started sliding down the transition passage. be.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a vertical cross-sectional side view of the entire device, and FIG. l-1! FIG. 5 is a perspective view of the supply pipe, FIG. 4 is a simplified longitudinal sectional side view of the passage portion, and FIG. 5 is a movement path diagram of the shaft-shaped component. FIG. 6 is a side view of the electromagnetic case.

Claims (3)

[Claims] (1) In devices that hold parts at the tip of a supply rod and feed them to a destination, a supply passage is installed almost parallel to the supply rod, and a transition passage is provided that connects the tip of the passage with the tip of the supply rod. A feeding device for a shaft-shaped component with a head, characterized in that it is provided with a head. (2) In devices that hold parts at the tip of an inclined supply rod and feed them to the target location, a supply passage is installed above the supply rod almost parallel to the rod, and the tip of the passage and the supply rod are connected to each other. A feeding device for a shaft-shaped component with a head, characterized in that a transition passage connecting the tip portion is provided. (3) In devices that hold parts at the tip of an inclined supply rod and feed them to the target location, a supply passage is installed above the supply rod almost parallel to the rod, and the tip of the passage and the supply rod are connected to each other. A shaft-like component with a head, characterized in that a transition passage connecting the tip ends is provided, and a restraining member is provided in a movable state to prevent the component locked in the transition passage from swinging. Feeding device.