JP6857791B2 - Parts supply device with stopper member - Google Patents

Description

The present invention relates to a parts supply device including a stopper member of a type in which a part that has entered the temporary fixing chamber is received by a stopper member, temporarily locked, and the part is held by a supply rod and supplied to a target location.

The parts supply device shown in FIGS. 3 and 4 attached to the present patent application is described in Japanese Patent Application Laid-Open No. 3-2387.

The parts supply device shown in FIGS. 3 and 4 will be described in detail.

The component supplied here is a projection nut 1 in which a screw hole is formed in the center of a square main body and welding protrusions are provided at four corners of the main body. In the following description, the projection nut may be simply referred to as a nut.

A guide tube 2 having a circular cross section is fixed to a stationary member 3 such as a machine frame. The supply rod 4 is housed in the guide tube 2 in a state where it can move forward and backward. The supply rod 4 is provided with a large-diameter portion 5 that slides in the guide pipe 2 and a guide rod 6 that has a smaller diameter than the large-diameter portion 5 and enters the screw hole of the nut 1. A pressing surface 7 for pushing out the nut 1 is formed at the boundary between the large diameter portion 5 and the guide rod 6.

The supply pipe 8 of the nut 1 is welded to the end of the guide pipe 2 in a state orthogonal to the axial direction of the guide pipe 2. The supply pipe 8 uses a pipe member having a rectangular cross section suitable for guiding the nut 1. A thick plate-shaped stopper member 9 is arranged on the extension direction side of the supply pipe 8. The supply pipe 8, the stopper member 9, and the end of the guide pipe 2 form a temporary fixing chamber 10 in which the advance side of the supply rod 4 is open. The supply pipe 8 is connected to the parts feeder 11.

As shown in FIG. 3B, an insertion space 14 for the stopper member 9 is formed between the mounting plane 12 formed on the outside of the guide tube 2 and the fixing member 13 welded to the guide tube 2. A portion near the end of the stopper member 9 is an insertion portion 15, and the insertion portion 15 is inserted into the insertion space 14 to tighten the fixing bolt 16. By doing so, the stopper member 9 is fixed to the mounting plane 12 in a pressurized state.

The fixing bolt 16 is screwed into a screw hole 17 provided in the fixing member 13, and by tightening the fixing bolt 16, the stopper member 9 is pressed against the mounting plane 12 and is in a fixed state.

A magnet 18 for temporary locking that attracts the nut 1 to a predetermined regular position is arranged on the stopper member 9. The magnet 18 is arranged in the extension direction of the supply pipe 8, and the nut 1 is attracted to a predetermined position in the temporary fixing chamber 10 to stop. The magnet 18 may be an electromagnet, but here it is a permanent magnet. The behavior of the nut 1 being sucked into the correct position is shown by the suction axis OO. The magnet 18 is fitted in a recess 20 provided in the thick plate 19, and a cover plate 21 is welded therein.

A magnet 22 similar to the magnet 18 is arranged at a position where the stopper member 9 extends. The mounting structure of the magnet 22 is the same as that of the magnet 18. The magnet 22 functions to prevent the nut 1 from being blown off by the supply rod when it is delivered.

The steel plate component 25 is placed on the fixed electrode 24 having the guide pin 23, and the nut 1 is supplied to the guide pin 23 protruding from the steel plate component 25. The nut 1 is made by advancing the supply rod 4. Reference numeral 26 is a movable electrode.

The nut 1 from the supply pipe 8 is transferred along the suction axis OO, is attracted by the magnet 18 arranged on the suction axis OO, and is temporarily locked. At this time, the screw hole and the guide rod 6 are located coaxially. When the supply rod 4 advances here, the guide rod 6 penetrates the screw hole, and then the pressing surface 7 pushes the upper surface of the nut 1, and the nut 1 is delivered while rubbing the cover plate 21. At this time, the state of rubbing against the cover plate 21 is maintained by the attraction of the magnet 22, and the nut 1 is prevented from being blown off by the advance impact of the supply rod 4. The nut 1 sent out in this way is supplied to the guide pin 23.

Jikkenhei No. 3-2387

In the technique described in Patent Document 1, if the insertion portion 15 of the thick plate-shaped stopper member 9 is inserted into the insertion space 14, the magnet 18 is arranged on the suction axis OO. As shown by the alternate long and short dash line in FIG. 3A, if the stopper member 9 is inserted in the opposite direction, the magnet 18 will not be located on the suction axis OO, and the nut 1 is normal. Temporary locking becomes impossible.

The present invention has been provided to solve the above-mentioned problems, and is a component supply device provided with a stopper member, which is provided with a shape for preventing reverse insertion of the stopper member.

The invention according to claim 1
An insertion space for the stopper member is formed between the mounting plane formed on the outer side of the guide tube accommodating the supply rod and the fixing member fixed to the guide tube.
The stopper member is fixed to the guide tube with its insertion portion inserted into the insertion space and pressurized to the mounting plane.
A temporary fixing chamber in which the advance side of the supply rod is open is formed by the supply pipe of the parts connected to the guide pipe, the stopper member, and the end of the guide pipe.
On the stopper member, a magnet for temporary locking that sucks the part to a predetermined regular position along the suction axis that is the extension direction of the supply pipe is arranged.
The position of the magnet in the stopper member is set so that it is on the attraction axis when the stopper member is inserted into the insertion space in the normal direction.
A protrusion member is provided on the side opposite to the insertion portion of the stopper member so that the component cannot be inserted into the insertion space while rubbing the stopper member and projecting to the side opposite to the side to be sent. A component supply device including a stopper member, characterized in that the thickness dimension of the stopper member at the portion where the member is provided is set to be larger than the spatial dimension in the space width direction of the insertion space.

A protrusion member that cannot be inserted into the insertion space is provided at a position opposite to the insertion portion of the stopper member. Therefore, even if the stopper member is mistakenly inserted into the insertion space in the opposite direction, the portion of the protruding member cannot enter the insertion space, so that the operator notices that the stopper member is in the opposite direction and prevents erroneous assembly. can do.

Further, by defining the protruding direction of the protruding member in a fixed direction, the front and back surfaces of the stopper member can be identified, and erroneous assembly in the front and back directions can be prevented.

It is sectional drawing of the apparatus. It is a three-dimensional view of a stopper member. It is sectional drawing which shows the conventional structure. It is sectional drawing (4)-(4) of FIG.

Next, a mode for implementing the parts supply device including the stopper member according to the present invention will be described.

1 and 2 show examples of the present invention.

In this embodiment, the same reference numerals are given to the parts common to the structures of FIGS. 3 and 4 which are the conventional structures, and the description of the conventional structure is incorporated, and new structures other than the structures of FIGS. 3 and 4 are novel. Only the part will be explained. The structure around the parts feeder 11 and the electrodes 24 and 26 is not shown.

A protruding member 27 is provided on the thick plate 19 of the stopper member 9. The protruding member 27 is provided at or near the end on the side opposite to the insertion portion 15, and protrudes toward the side opposite to the cover plate 21. The spatial dimension of the insertion space 14 in the spatial width direction is indicated by reference numeral L1. Further, the thickness dimension in the thickness direction of the portion where the protrusion member 27 is provided is indicated by reference numeral L2. The thickness dimension L2 is set to be larger than the space dimension L1. Here, L1 is 5 mm and L2 is 7.5 mm. Due to such dimensioning, insertion into the insertion space 14 is prohibited.

Various specific shapes of the protrusion member 27 can be adopted. The shape shown in FIG. 2 (A) is that of FIG. 1, and is formed by forming elongated protrusions in the width direction at the end of the plank 19.

The example shown in FIG. 2B has a circular protrusion shape and is provided near the end of the plank 19.

In the example shown in FIG. 2C, there is only one magnet 18, and elongated protrusions in the width direction are provided in the vicinity of the end portion of the thick plate 19 over the width direction. Each of the above three cases protrudes to the opposite side of the cover plate 21.

In the conventional structure shown in FIG. 3, there is a gap between the surfaces of the fixing member 13 and the stopper member 9, but in the embodiment shown in FIG. 1, there is no such gap. In the case of FIG. 1, since the thickness of the gap between the insertion space 14 and the stopper member 9 is slightly different, the gap does not appear in the drawing. Also in FIG. 1, the stopper member 9 is pressurized to the mounting plane 12.

The effects of the examples described above are as follows.

A protrusion 27 that prevents the stopper member 9 from being inserted into the insertion space 14 is provided at a position opposite to the insertion portion 15. Therefore, even if the stopper member 9 is mistakenly inserted into the insertion space 14 in the opposite direction, the portion of the protrusion member 27 cannot enter the insertion space 14, and the operator notices that the stopper member 9 is in the opposite direction. It is possible to prevent erroneous assembly.

Further, by defining the protruding direction of the protruding member 27 in a fixed direction, the front and back surfaces of the stopper member 9 can be identified, and erroneous assembly in the front and back directions can be prevented. By projecting the protrusion member 27 toward the opposite side of the cover plate 21, the stopper member 9 is attached so that the protrusion member 27 can be seen from the outside, and it becomes easier to detect erroneous assembly in the front and back directions, and the device is normal. Beneficial for operation.

As described above, according to the apparatus of the present invention, the stopper member is provided with a shape for preventing reverse insertion to prevent erroneous assembly of the stopper member. Therefore, it can be used in a wide range of industrial fields such as a body welding process for automobiles and a sheet metal welding process for home appliances.

1 Parts, projection nut 2 Guide pipe 4 Supply rod 6 Guide rod 7 Pressing surface 8 Supply pipe 9 Stopper member 10 Temporary fixing chamber 12 Mounting plane 13 Fixing member 14 Insertion space 15 Insertion part 18 Magnet 19 Thick plate 21 Cover plate 27 Protruding member L1 Spatial dimension L2 Thickness dimension OO Suction axis

Claims (1)

An insertion space for the stopper member is formed between the mounting plane formed on the outer side of the guide tube accommodating the supply rod and the fixing member fixed to the guide tube.
The stopper member is fixed to the guide tube with its insertion portion inserted into the insertion space and pressurized to the mounting plane.
A temporary fixing chamber in which the advance side of the supply rod is open is formed by the supply pipe of the parts connected to the guide pipe, the stopper member, and the end of the guide pipe.
On the stopper member, a magnet for temporary locking that sucks the part to a predetermined regular position along the suction axis that is the extension direction of the supply pipe is arranged.
The position of the magnet in the stopper member is set so that it is on the attraction axis when the stopper member is inserted into the insertion space in the normal direction.
A protrusion member is provided on the side opposite to the insertion portion of the stopper member so that the component cannot be inserted into the insertion space while rubbing the stopper member and projecting to the side opposite to the side to be sent. A component supply device including a stopper member, characterized in that the thickness dimension of the stopper member at the portion where the member is provided is set larger than the spatial dimension in the space width direction of the insertion space.

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