JPH05277847A - Relay device for parts - Google Patents

Abstract

PURPOSE:To optimize the relative position of a part and a supply rod, and thereby prevent the part from being dislocated by allowing a recessed section where a blocking member is closed, to accept a part, and furthermore making the recessed section coaxial with the supply rod. CONSTITUTION:When a bolt 3 comes down to a place where a blocking member 20 is closed, while passing through a part supply passage 9, the tip end of a shaft section 1 breaks into a bottle neck section 16 while being guided by a broad section 15, and it is then accepted within the recessed section 15 of a hold member 13. A presser member 18 is operated therein by an air cylinder 19, so that braking force is imparted to the bolt 3 with the shaft section 1 pressed with pressure. And when a supply rod 4 then comes down while being rotated, a head section 2 is coupled in an engaging hole 5, and simultaneously it is sucked up by a magnet 6, so that it is finally held on the tip end section of the supply rod 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the field of a type in which parts are engaged with the tip of a supply rod to supply them to a target location.

[0002]

2. Description of the Related Art Conventionally, as disclosed in JP-A-60-131167 (Yudani Iron Works KK), a bolt is attracted to a magnet to position it coaxially with a supply rod, and then supply in that state. The head of the bolt is engaged with the tip of the rod.

[0003]

In the above-mentioned conventional example, since the positioning of the parts is only the attraction to the attraction surface of the flat magnet, it is not possible to always ensure a constant positioning. In addition, if the parts are frequently moved and suddenly stopped like a robot device, if the parts are not held sufficiently, the parts may be displaced due to inertial force, etc. Accurate component retention cannot be achieved.

[0004]

Means for Solving the Problem and Its Action The present invention has been devised to solve the above-mentioned problems, and the first aspect of the present invention is to engage a part with the tip of the supply rod to achieve a desired position. In the type that supplies the component to the holding member, the holding member is provided with a recess for receiving the component, and the closing member for opening and closing the recess is provided, and the position of the recess is set so that the component is received in the recess coaxially with the supply rod. The component held in the recess is engaged with the supply rod to be supplied to the target location. According to claim 2, in claim 1,
A moving means for retracting the holding member from the advancing space of the supply rod is installed. By moving the holding member by the operation of the moving means, the feeding rod can be smoothly advanced. I am trying. Claim 3
According to claim 1 and claim 2, the pressing member is brought into pressure contact with the component in the recess to apply a braking force to the component. In the case of a rotary supply rod, the supply is performed. When the parts are engaged with the tip of the rod, the parts are prevented from co-rotating. Claim 4 is Claim 1
According to another aspect of the present invention, the closing member is formed of a plate-like member, and when the closing member is closed, the parts are stably inserted into the recess and the closing member opens. The holding member is retracted while it is in the open position. A fifth aspect of the present invention is characterized in that, in the first and second aspects, the closing member is formed of a rod-shaped member, and has the same function as that of the fourth aspect. A sixth aspect of the present invention is characterized in that, in the first and second aspects, an air injection hole for discharging the component in the recess is provided.
When the holding position of the component in the recess is abnormally displaced, the component is blown off by air injection. According to a seventh aspect of the present invention, in the second aspect, the structure of the moving means is set so that the moving path of the holding member by the moving means is linear or arcuate. Draws a receding trajectory that is linear or circular.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of FIGS. 1 and 2 will be described. Here, the case where a bolt 3 composed of a shaft portion 1 and a head portion 2 is held by a rotary box wrench 4 is illustrated.
An engaging hole 5 for receiving the head 2 is formed at the tip of the box wrench 4. The engaging holes 5 are hexagonal, dodecagonal or 1-shaped so as to match the hexagonal head 2 (see FIG. 2).
It is an octagon. A magnet (permanent magnet) 6 is embedded in the inner part of the engagement hole 5, and the bolt 3 that has entered the engagement hole 5
Holding by suction. The box wrench 4 corresponds to the supply rod. The box wrench 4 is housed in the guide cylinder 7 in a state capable of rotating and sliding back and forth. A component supply pipe 8 is connected to the guide cylinder 7 obliquely from above, and a component supply passage 9 communicates with the inside of the guide cylinder 7. The guide tube 7 is welded to the connecting plate 10, and the connecting plate 10 is firmly fixed to the stationary member 11. Reference numeral 12 is a component supply hose made of synthetic resin and is a parts feeder (not shown).
Growing from.

The holding member 13 has a rectangular parallelepiped external shape as shown in the drawing, and a recess 14 for receiving the bolt 3 is formed in the recess 14. A wide portion 15 and a narrow portion 16 are provided in the recess 14. The head portion 2 is accommodated in the wide portion 15 and the shaft portion 1 is accommodated in the narrow portion 16 while being smoothly continuous. A through hole 17 communicating with the narrow portion 16 is opened in the holding member 13, and a rod-shaped pressing member 18 is inserted therein and abutted against the shaft portion 1. The pressing force is obtained by the air cylinder 19 fixed to the holding member 13, and the piston rod of the air cylinder 19 forms the pressing member 18. By the pressing member 18 being pressed against the shaft portion 1, the braking force is applied to the bolt 3.

The closing member 20 for opening and closing the concave portion 14 which is open to one side will be described. The closing member 20 made of a plate-like member moves forward and backward, and an L-shaped bracket 21 welded to the holding member 13. An air cylinder 22 is attached to the air cylinder 22, and its piston rod 23 is connected to the closing member 20. For this connection, the closing member 20 has an L-shaped bent shape. A moving means is provided to retract the holding member 13 and allow the supply rod 4 to advance. The moving means is constituted by an air cylinder 24 fixed to the stationary member 11, and its piston rod 25
Are connected to the holding member 13.

Next, the operation of the above-described embodiment will be described. When the bolt 3 passes through the component supply passage 9 to a position where the closing member 20 is closed as shown in FIG. 2, the tip of the shaft portion 1 is guided by the wide width portion 15 and enters the narrow width portion 16. , Is received in the recess 14 as shown in FIG. The pressing member 18 is operated there by the air cylinder 19 to press the shaft portion 1 and apply a braking force to the bolt 3. When the supply rod 4 continues to descend while rotating, the head 2 fits into the engagement hole 5 and is attracted by the magnet 6 at the same time, and the holding of the supply rod 4 at the tip is completed. .. After that, when the closing member 20 is opened and the holding member 13 is retracted by the air cylinder 24, only the bolt 3 remains at the tip of the supply rod 4, and then the supply rod 4 advances to screw the bolt into the screw hole at the target location. The mixing is completed. After that, in preparation for the next bolt entry, the movement is the reverse of the previous operation.

The above-described embodiment is of a type in which the holding member 13 is linearly retracted, but the embodiment of FIG. 3 is different from FIG. 2 in that the retracting locus is arcuate. Only the parts that are doing are shown. A rotary motor 26 that operates electrically or pneumatically is firmly fixed to the stationary member 11 via a bracket 27, and a rotary shaft 28 thereof is provided.
The arm 29 is coupled to the arm 29, and the holding member 1 is attached to the arm 29.
3 (illustrated by a chain double-dashed line) is fixed. Reference numeral 30 is a bracket welded to the holding member 13, to which the arm 29 is joined.

Although not shown, the closing member may have a rod shape instead of the plate-like member shown in FIG.

As shown in FIG. 4, the recess 1 is caused for some reason.
If the bolt 3 is held in a state of being displaced upward from 4 or if the bolt 3 is held while being inclined, the bolt must be removed. For this purpose, a nozzle hole 31 is opened in the guide cylinder 7, a joint pipe 32 communicating therewith is welded to the guide cylinder 7, and an air hose 33 is connected.
When the holding of the bolt is abnormal, after opening the closing member 20, high-pressure air is ejected from the injection hole 31 to insert the bolt into the concave portion 1.
Blow away from 4.

In FIG. 1, the component supply passage 9 is communicated with the inside of the guide cylinder 7, but in FIGS. 5 and 6, instead, the guide rail 34 is extended to just before the recess 14,
As shown in FIG. 6, the guide rail 34 is formed by integrating two long members with a bridging material 35 and fixing them to the stationary member 11. Further, a magnet (permanent magnet) 36 is embedded in the inner portion of the narrow portion 16 of the holding member 13.

As shown in FIG. 6, the bolt 3 is suspended from the neck so that the guide rail 34 can be moved.
It is received in the concave portion 14 by the suction force of 6.

In order to make the attraction force of the magnets 6 and 36 act more strongly on the bolt, it is appropriate that the supply rod 4, the holding member 13 and the like are made of non-magnetic stainless steel. The air hose to be connected to each air cylinder is not shown. Further, the operation sequence for obtaining the above-mentioned operation can be easily carried out by a normal electric control circuit or an electromagnetic air control valve,
This is not explained here.

[0015]

According to the present invention, the component is received while the recess is closed by the closing member, and the recess is coaxial with the supply rod. Therefore, the component is always temporarily locked in the correct position. Thus, the holding of the component at the tip of the supply rod is reliably achieved. Since the closing member is closed and the component is temporarily locked in the recess, even if the present invention is applied to the robot apparatus and abrupt movement is performed, the component is not displaced. Since the holding member is retracted from the movement occupying space of the supply rod by the moving means and the movement locus is linear or arcuate, the supply rod is smoothly advanced,
In addition, it is possible to cause a neighboring member to function without interfering with a linear or circular motion. Since the pressing force is applied to the component by the pressing member, the component does not rotate together with the supply rod, and reliable engagement is possible. In the unlikely event that a component is held in the recess in an abnormal state, it is removed by ejecting air, so that the component is always properly engaged with the supply rod.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing the overall configuration of the present invention.

FIG. 2 is a plan view showing a portion of a holding member.

FIG. 3 is a plan view showing another embodiment.

FIG. 4 is a vertical sectional side view showing an air jet portion.

FIG. 5 is a vertical sectional side view showing another embodiment.

FIG. 6 is a vertical sectional view of a guide rail.

[Explanation of symbols]

 4 Supply Rod 3 Components 13 Holding Member 14 Recess 20 Closing Member 24, 26 Moving Means 18 Pressing Member 31 Air Injection Hole

Claims (7)

[Claims] 1. In a type in which a tip of a supply rod is engaged with a component to supply it to a target location, a holding member is provided with a concave portion for receiving the component, and a closing member for opening and closing the concave portion is provided, and A relay device for a component, wherein the position of the recess is set so that the component can be received in the recess in a coaxial state. 2. A relay device for parts according to claim 1, further comprising a moving means for retracting the holding member from the advancing space of the supply rod. 3. The component relay device according to claim 1 or 2, wherein a pressing member is brought into pressure contact with the component in the recess to apply a braking force to the component. 4. The relay device for parts according to claim 1, wherein the closing member is a plate-shaped member. 5. The relay device for parts according to claim 1, wherein the closing member is formed of a rod-shaped member. 6. A component relay device according to claim 1 or 2, further comprising an air injection hole for discharging a component in the recess. 7. A relay device for parts according to claim 2, wherein the structure of the moving means is set so that the moving path of the holding member by the moving means is linear or circular.