JP5858343B2 - Supply regulation member and regulation method for perforated parts - Google Patents

Description

  The present invention relates to a perforated part supply regulating member that regulates the supply of abnormal parts by holding abnormal perforated parts other than the regular dimensions that have entered the temporary holding chamber on the suction surface formed at the tip of the guide member. And related to regulatory methods.

  Japanese Patent No. 3309245 discloses a type in which a supply rod is passed through a projection nut that is stopped at a predetermined position in a temporary stop chamber by a stopper surface and is supplied to a target location. It is described to play with.

  Japanese Patent No. 3398791 discloses a guide having a stopper surface formed in a type in which a supply rod is passed through a projection nut that is stopped at a predetermined position in a temporary fixing chamber by a stopper surface and is supplied to a target location. It is described that a permanent magnet is disposed in the vicinity of the tip of the member to reduce the movement speed of the projection nut to prevent the projection nut from coming off the supply rod.

Japanese Patent No. 3309245 Japanese Patent No. 3398791

  The techniques described in Patent Document 1 and Patent Document 2 do not hold projection nuts other than the normal dimensions on the supply device, and therefore collect the projection nuts other than the normal size separated from the supply device. There is a need.

  The present invention is provided in order to solve the above-described problems, and a perforated part supply regulating member and a regulation for sucking and holding a perforated part having a size other than a normal size by a suction surface formed on the guide member. The purpose is to provide a method.

  The invention according to claim 1 is an invention of a supply regulating member for perforated parts, wherein a temporary fixing chamber having a stopper surface formed on a guide member is provided at an end of the component supply passage, and the stopper surface of the temporary fixing chamber The guide rod of the supply rod that moves forward and backward is passed through the perforated part of the regular dimension received by the guide, or a protruding guide pin is inserted instead of the guide rod to supply the perforated part to the target location. In this type, the stopper surface is extended in the advancing direction of the supply rod to form a guide surface on the guide member, and the guide surface is bent at the tip of the guide member to absorb perforated parts other than the regular dimensions When the tip of the guide rod or guide pin presses the end face of a perforated part other than the above-mentioned regular dimensions, the perforated part is moved in the direction bent from the guide surface. It is characterized by being sucked and held on the attracting surface Te.

  The guide surface of the guide member formed by extending the stopper surface in the advancing direction of the supply rod is bent at its tip to provide a suction surface that sucks holes with parts other than normal dimensions, that is, abnormal holes. It has been. For this reason, since the end surface of a holed part (abnormally holed part) other than the regular dimension positioned in the temporary fixing chamber is pushed by the guide rod or the guide pin, the holed part is bent in the direction bent from the guide surface. Then, the suction surface is sucked and held.

  In this way, the perforated parts other than the regular dimensions are not correctly penetrated by the guide rod and the guide pin enters, and with the advancement of the supply rod, it is moved in an abnormal posture separated from the guide surface, It moves to the direction bent from the guide surface and is attracted to the attracting surface. In other words, since the suction surface is formed by bending the tip portion of the guide surface, a bent broken line is interposed between the guide surface and the suction surface in a state like a ridgeline. Therefore, perforated parts other than the regular dimensions that have reached the bent broken line will move toward the suction surface with the bent bent line as a boundary, and will be held at a location separated from the guide surface, and the supply of abnormal parts will be restricted. .

  As described above, the suction surface on which the perforated parts other than the regular dimensions are formed on the supply restricting member is sucked and held, and the perforated parts are stopped by the supply restricting member. Therefore, when a perforated part other than the normal dimension is mixed and sent to the temporary holding chamber, the abnormal part is attracted to the suction surface and can be visually checked. It is immediately determined that an abnormality has occurred in the function.

  According to a second aspect of the present invention, in the perforated component supply restricting member according to the first aspect of the present invention, the area of the suction surface is wide enough to suck and hold at least one perforated component other than the regular dimension.

  Since the required area is given to the suction surface as described above, the abnormally perforated part that has moved from the guide surface to the suction surface is reliably held on the suction surface.

  According to a third aspect of the present invention, there is provided the perforated component supply restricting member according to the first or second aspect, wherein a magnet for attracting and holding a perforated component other than the regular dimension is disposed in the vicinity of the attracting surface. is there.

  For abnormally perforated parts that move from the guide surface to the suction surface, the abnormal perforated parts are attracted in the direction of transition from the guide surface to the suction surface, and abnormal holes are formed in the suction surface at locations away from the guide surface. A force to suck parts is required. As described above, the force in the two types of directions is generated by the magnet, so that the perforated component can be reliably adsorbed by arranging the magnet at an appropriate location.

The invention according to claim 4 is an invention of a method for restricting the supply of perforated parts, wherein a temporary fixing chamber having a stopper surface formed on a guide member is provided at an end portion of the component supply passage, and the stopper surface of the temporary fixing chamber The guide rod of the supply rod that moves forward and backward is passed through the perforated part of the regular dimension received by the guide, or a protruding guide pin is inserted instead of the guide rod to supply the perforated part to the target location. In this type, the stopper surface is extended in the advancing direction of the supply rod to form a guide surface on the guide member, and the guide surface is bent at the tip of the guide member to absorb perforated parts other than the regular dimensions Prepare a supply regulating member for perforated parts with a surface,
Without the guide rod or guide pin penetrating or entering the perforated part other than the regular dimension, the tip of the guide rod or guide pin presses the end surface of the perforated part other than the regular dimension so that the perforated part is removed from the guide surface. It is characterized in that it is moved in a bent direction and sucked and held on the suction surface.

  The invention of the above method has the same effect as the invention of the supply regulating member.

It is a side view which shows the whole supply apparatus simply. It is sectional drawing which shows the principal part of a supply control member. It is a side view which shows the movement state of a projection nut. It is a side view which shows the movement state of another projection nut. It is a side view which shows the modification of a supply control member. It is sectional drawing in case another nut is made into the object of regulation.

  Next, a mode for carrying out the supply restricting member and restricting method for perforated parts of the present invention will be described.

  1 to 5 show a first embodiment of the present invention.

  First, the perforated part in the present embodiment will be described.

  There are various types of perforated parts such as ring-shaped washers, distance pieces, and nuts. In this embodiment, a projection nut is a supply target. In the following description, the projection nut may be simply expressed as a nut.

  An iron projection nut 1 shown in FIG. 2 (C) includes a main body 2 that is square in plan view, a screw hole 3 that is opened in the center thereof, and four corners on one side of the main body 2. It is comprised by the welding protrusion 4 formed in this. End surfaces 5 are formed on the front and back of the main body 2. The dimensions of each part of the nut 1 are such that the vertical and horizontal dimensions of the square main body 2 are 13 mm, the axial body thickness of the screw hole 3 is 6 mm, and the inner diameter of the screw hole 3 is 6 mm.

  Next, the supply device will be described.

  The entire supply device is indicated by reference numeral 100. A component supply passage 6 having a rectangular cross section larger than the nut 1 is formed by a supply pipe 7. A guide cylinder 8 is welded to the end of the supply pipe 7 in a state perpendicular to the end. A guide member 9 made of a plate-like member is fixed to the end of the supply pipe 7, thereby forming a temporary stop chamber 10. An outlet opening 11 through which the nut 1 is sent out is provided in the temporary fixing chamber 10.

  The supply rod 13 is accommodated in the guide cylinder 8 and is constituted by a large-diameter main rod 14 and a guide rod 15 having a smaller diameter than that. A flat extruded surface 16 is formed at the boundary between the main rod 14 and the guide rod 15. Has been. The distal end portion of the guide rod 15 has a spherical shape as shown in the figure, or has a tapered shape (not shown). An advancing / retreating drive means 17 is coupled to the end portion of the guide cylinder 8, and the supply rod 13 is advanced / retreated by the advancing / retreating output thereof. Various devices such as an air cylinder and an advance / retract output type electric motor can be adopted as the advance / retreat driving means 17. Here, it is an air cylinder, which is also denoted by reference numeral 17. In order to press the guide member 9 against the end of the supply pipe 7, a fixing piece 18 is welded to the guide tube 8, and the above-mentioned pressing is performed by a fixing bolt 19 that is screwed and passed through the guide cylinder 8.

  FIG. 2 shows the members in the vicinity of the temporary fixing chamber 10 in detail. The guide member 9 includes a permanent magnet 20 for receiving the nut 1 in a predetermined position in the temporary fixing chamber 10 and the operation of the nut 1. Another permanent magnet 21 is embedded. For this purpose, circular holes 23 and 24 are formed in the main plate 22 made of a thick plate material, and the permanent magnets 20 and 21 are fitted therein. A cover plate 25 is welded to the surface of the main plate 22, and a back plate 26 is welded to the back surface of the main plate 22. As described above, the guide member 9 including the permanent magnets 20 and 21 is configured by the three-layer structure of the main plate 22, the cover plate 25, and the back plate 26.

  A permanent magnet 20 is disposed at a location where the component supply passage 6 is extended, and the surface of the cover plate 25 in the vicinity of the permanent magnet 20 serves as a stopper surface 27. A guide surface 28 is formed by extending the stopper surface 27 in the advancing direction of the supply rod 13. As indicated by a two-dot chain line, the nut 1 that has passed through the component supply passage 6 is received by the stopper surface 27 by the attractive force of the permanent magnet 20 and is temporarily locked at a predetermined position in the temporary fixing chamber 10.

  The nut 1 shown in FIGS. 1 and 2 is a normal-sized nut having the above dimensions, and therefore, as shown in FIG. 1, the axis of the screw hole 3 of the nut 1 received on the stopper surface 27. The axis of the guide rod 15 is coaxial. The diameter of the guide rod 15 is slightly smaller than the inner diameter of the screw hole 3. For the normal dimension nut 1, the distance between the axis of the guide rod 15 and the stopper surface 27 is set so that the axis of the screw hole 3 of the nut 1 received by the stopper surface 27 is coaxial with the axis of the guide rod 15. ing. By doing so, as shown in FIGS. 1 and 2, when the guide rod 15 advances, the screw hole 3 is penetrated.

  In this embodiment, the steel plate part 32 is placed on the fixed electrode 30 where the supply location of the nut 1 is the positioning pin 31 of the fixed electrode 30, and the positioning pin 31 protrudes from the lower hole of the steel plate part 32. A movable electrode 33 that moves forward and backward is arranged coaxially with the fixed electrode 30.

  Here, the supply rod 13 advances and the guide rod 15 penetrates the screw hole 3, and further, the supply rod 1 advances and the pushing surface 16 pushes the end surface 5 of the nut 1, whereby the lateral side surface of the nut 1 is guided. The surface 28 is pushed out while being rubbed. The advance speed of the supply rod at this time is set faster than the drop speed of the nut 1 so that the nut 1 does not fall.

  When the tip of the guide rod 15 stops immediately before the positioning pin 31, the nut 1 slides down the guide rod 15 by inertia force and matches the positioning pin 31 as shown by a two-dot chain line in FIG. After the supply rod 13 is retracted, the movable electrode 33 advances and the welding projection 4 is pressed against the surface of the steel plate part 32, and a welding current is applied to complete welding.

  Next, the suction surface will be described.

  Since the nut 1 other than the normal dimension, that is, the abnormal nut 1, the axis of the screw hole 3 is displaced from the axis of the guide rod 15, the tip end of the guide rod 15 hits the opening corner of the screw hole 3 or the end face 5. Or hit. Therefore, since it moves in an abnormal posture as will be described later, it is shifted from the abnormal posture to the suction surface side.

  A suction surface 34 is formed at the tip of the guide member 9 by bending the guide surface 28. Since such a bent structure is formed, a bent bent line 35 is interposed between the guide surface 28 and the suction surface 34 in a state like a ridgeline. In addition, the suction surface 34 has a supply rod advancing side end surface of the main plate 22, the cover plate 25, and the back plate 26 finished in a series of flat surfaces.

  The suction force for the suction surface 34 can be secured by various methods such as an air suction hole opened on the surface of the suction surface 34 or a magnet embedded in the guide member 9. Here, a permanent magnet 21 is employed. For the abnormal nut 1 that moves from the guide surface 28 to the suction surface 34, the force that the abnormal nut 1 sucks in the direction of transition from the guide surface 28 to the suction surface 34, and the suction surface 34 that is separated from the guide surface 28. A force for adsorbing the abnormal nut 1 is required. As described above, the magnets 21 generate forces in the two types of directions. Therefore, the magnet 21 is disposed at a location close to the attracting surface 34. In any case, the magnet 21 is attracted by the magnet 21 shown in FIG. 2, the magnet 21 shown in FIG. 3, the magnet 21 shown in FIG. 4, the magnet 21 shown in FIG. 5, the magnet 21 shown in FIG. It is disposed at a location close to the surface 34. In addition, this permanent magnet 21 fulfill | performs other functions besides the structure and effect of this invention.

  That is, at the time of starting the supply device 100 for one day, since the viscosity of the lubricating oil in the air cylinder 17 is increased due to the long-term operation stop, at the initial stage of air supply to the air cylinder 17, The air pressure in the air cylinder 17 increases while the piston is stopped. When the piston thrust in this high pressure state exceeds the viscous resistance of the lubricating oil, the piston advances rapidly at a high speed. When such a phenomenon occurs, the nut 1 is shockedly fed out at an abnormally high speed by the extruded surface 16, so that the nut 1 is knocked out and only the nut 1 jumps out of the guide rod 15. Become. In order to prevent such jumping-out, a permanent magnet 21 is arranged in the vicinity of the tip of the guide member 9, and the high-speed nut 1 that has been knocked out is attracted to the guide surface 28 to give a braking action to the nut movement. It is.

  The supply rod 13 shown in FIG. 2 (D) has a projection guide pin 37 formed in place of the long guide rod 15 and is the same as or slightly smaller than the length of the screw hole 3. It is shortened and is made to enter the screw hole 3.

  Next, the behavior of an abnormal nut smaller than the normal dimension will be described.

  As shown in FIG. 3E, the nut 1 smaller than the normal dimension, that is, the abnormal nut 1, the axis of the screw hole 3 is aligned with the guide rod 15 when the lateral side surface of the abnormal nut 1 is adsorbed to the stopper surface 27. It is offset to the stopper surface 27 side from the axis line. This offset distance is indicated by the symbol W1. For this reason, as shown in FIGS. 3A and 3E, the leading end center point of the guide rod 15 abuts against the end face 5 near the screw hole of the abnormal nut as the supply rod 13 advances. Alternatively, when W1 is a little shorter than the illustrated length, the tip center point hits the opening corner (opening edge) of the screw hole 3.

  When the supply rod 13 further advances from the state shown in FIG. 3A, the tip of the guide rod 15 pushes the end face 5, and the nut 1 is forcibly tilted as shown in FIG. Get away from. During this inclination, the tip of the guide rod 15 enters the opening end of the screw hole 3, and the nut 1 moves while rubbing the guide surface 28 while being inclined. When the abnormal nut 1 reaches the bent broken line 35 in this state, as shown in FIG. 3C, the bent bent line 35 turns around toward the attracting surface 34 like a fulcrum by the attractive force of the permanent magnet 21. Thereafter, as shown in FIG. 3D, the abnormal nut 1 is adsorbed by the adsorbing surface 34, held at a location separated from the guide surface 28, and restricted from being sent out by the advancement of the supply rod 13.

  In other words, since the suction surface 34 is formed by bending the tip portion of the guide surface 28, the bent broken line 35 is interposed between the guide surface 28 and the suction surface 34 in a state like a ridge line. Accordingly, the abnormal nut 1 that has reached the bent broken line 35 moves toward the suction surface 34 with the bent bent line 35 as a boundary, and is held at a location separated from the guide surface 28, and the supply rod 13 is attached to the abnormal nut 1. The supply of the abnormal nut 1 is regulated without interference.

  Even in the case of the short guide pin 37, the same operation as in the case of the guide rod 15 is performed as shown in FIG.

  In the above-described operation, the distal end portion of the guide rod 15 enters the opening end portion of the screw hole 3 of the abnormal nut 1 and the nut 1 moves while rubbing the guide surface 28 while being inclined. When this state is viewed locally, the vicinity of the apex of the tip of the guide rod 15 hits the opening corner of the screw hole 3, the lateral side of the tip hits the opening corner, and the screw hole opening corner at two convenient locations. It is hit. When such a contact state at two places is maintained, it moves along the guide surface 28 with the inclined nut posture as described above.

  On the other hand, depending on the size of the abnormal nut 1, when the tip of the guide rod 15 or the guide pin 37 hits the end face 5 or the screw hole opening corner instead of the two places as described above, FIG. As shown, the abnormal nut 1 scatters in space for an instant. When the bent nut 35 is reached during the scattering, the abnormal nut 1 is attracted toward the attracting surface 34 by the permanent magnet 21, moves toward the attracting surface 34 while being in contact with the bent bent line 35, and is attracted. Thus, the behavior form of the nut changes depending on the size of the abnormal nut 1 smaller than the normal dimension. The behavior pattern shown in FIG. 3G also occurs in the case of an abnormal nut 1 that is larger than the normal dimension described later.

  Next, the behavior of an abnormal nut larger than the normal dimension will be described.

  As shown in FIG. 4A, when the nut 1 larger than the normal dimension, that is, the abnormal nut 1 is adsorbed by the stopper surface 27, the axis of the screw hole 3 is aligned with the guide rod 15 as shown in FIG. It is offset to the side farther from the stopper surface 27 than the axis line. This offset distance is indicated by the symbol W2. For this reason, when the supply rod 13 advances, as shown in FIG. 4A, the tip center point of the guide rod 15 abuts against the end surface 5 near the screw hole of the abnormal nut. Alternatively, when W2 is a little shorter than the illustrated length, the tip center point hits the opening corner (opening edge) of the screw hole 3.

  When the supply rod 13 advances from the state of FIG. 4A, the tip of the guide rod 15 hits the end surface 5, and the nut 1 is forcibly tilted and separated from the stopper surface 27 as shown in FIG. 4B. . During this inclination, the tip of the guide rod 15 enters the opening end of the screw hole 3, and the nut 1 moves while rubbing the guide surface 28 while being inclined. When the abnormal nut 1 reaches the bent broken line 35 in this state, the bent bent line 35 turns around the attracting surface 34 like a fulcrum by the attractive force of the permanent magnet 21 as shown in FIG. Thereafter, as indicated by a two-dot chain line in FIG. 4C, the abnormal nut 1 is adsorbed by the adsorbing surface 34, held at a position separated from the guide surface 28, and sent out when the supply rod 13 advances. The

  In other words, since the suction surface 34 is formed by bending the tip portion of the guide surface 28, the bent broken line 35 is interposed between the guide surface 28 and the suction surface 34 in a state like a ridge line. Therefore, the abnormal nut 1 that has reached the bent broken line 35 moves toward the suction surface 34 with the bent bent line 35 as a boundary, and is held at a location separated from the guide surface 28, and the supply of the abnormal nut 1 is restricted. The

  Even in the case of the short guide pin 37, although not shown in FIG. 4, the same operation as in the case of the guide rod 15 is performed as shown in FIG. In this case, the direction of inclination of the abnormal nut 1 is opposite to that in FIG.

  In the above-described operation, the distal end portion of the guide rod 15 enters the opening end portion of the screw hole 3 of the abnormal nut 1 and the nut 1 moves while rubbing the guide surface 28 while being inclined. When this state is viewed locally, the vicinity of the apex of the tip of the guide rod 15 hits the opening corner of the screw hole 3, the lateral side of the tip hits the opening corner, and the screw hole opening corner at two convenient locations. It is hit. When such a contact state at two places is maintained, it moves along the guide surface 28 with the inclined nut posture as described above.

  On the other hand, depending on the size of the abnormal nut 1, when the tip of the guide rod 15 or the guide pin 37 hits the end face 5 or the screw hole opening corner instead of the two places as described above, FIG. As shown, the abnormal nut 1 scatters in space for an instant. When the bent nut 35 is reached during the scattering, the abnormal nut 1 is attracted toward the attracting surface 34 by the permanent magnet 21, moves toward the attracting surface 34 while being in contact with the bent bent line 35, and is attracted. Thus, the behavior form of a nut changes with the magnitude | size of the abnormal nut 1 larger than a regular dimension.

  Note that the nut 1 smaller than the normal dimension passes through the component supply passage 6 with sufficient margins in the vertical and horizontal directions, so that it is easy to reach the temporary fixing chamber 10. On the other hand, even if the nut 1 is larger than the normal dimension, the nut 1 may reach the temporary fixing chamber 10 via the component supply passage 6 as long as it is within the above margin dimension. In this invention, it can respond to both the case where it is smaller than a regular dimension, and the case where it is larger. Alternatively, it can be targeted only when it is smaller than the normal dimension. Comprising these dimensions, the expression “perforated parts other than normal dimensions” is used.

  Next, a modified example of the above embodiment will be described.

  In the modification shown in FIG. 5A, the guide member 9 is bent in a “<” shape, and a bent broken line 35 is formed at the bent portion. In the previous example, the suction surface 34 is formed by bending the guide surface 28 in a right angle direction. In this modified example, the bending angle θ is 60 degrees. The other configuration is the same as that of the previous example including a portion not shown, and the same reference numerals are described for members having similar functions. The nut behavior until the abnormal nut 1 is attracted to the attracting surface 34 is the same as that of the previous example.

  On the other hand, the modified example shown in FIG. 5B is an example in which the method of temporarily locking the nut 1 to the temporary fixing chamber 10 is different. In this case, instead of the permanent magnet 20 described above, an openable hinge plate 38 is attached to the outlet opening 11. A hinge plate 38 is supported to be openable and closable by a support shaft 39 installed in the outlet opening 11 portion, and although not shown in the drawing, the support shaft 39 is passed through a vine coil spring, A closing force is applied. Reference numeral 36 denotes a notch provided in the hinge plate 38, through which the guide rod 15 passes.

  The suction surface 34 in this modified example is formed by bending the guide member 9 in order to enlarge the area. In the case of FIG. 5A, the suction surface 34 is sufficiently enlarged. Other configurations are the same as those of the previous examples, including the portions not shown, and the same reference numerals are used for members having similar functions. The nut behavior after the supply rod 13 has advanced and the hinge plate 38 has been pushed open is the same as in the previous examples.

  Note that, instead of the air cylinder described above, an electric motor that performs forward / backward output can also be employed. It is also possible to replace the various permanent magnets with electromagnets.

  Operations such as the above-described advance / retreat operation of the supply rod and air suction can be easily performed by a generally adopted control method. A predetermined operation can be ensured by combining an air switching valve that operates with a signal from the control device or the sequence circuit, a sensor that emits a signal at a predetermined position of the air cylinder, and transmits the signal to the control device.

  The operational effects of the first embodiment described above are as follows.

  Adsorption that adsorbs the perforated parts other than the normal dimensions, that is, the abnormal nut 1 by bending the guide surface 28 of the guide member 9 formed by extending the stopper surface 27 in the advancing direction of the supply rod 13 at the tip thereof. A surface 34 is provided. For this reason, since the end face of the abnormal nut 1 other than the normal dimension positioned in the temporary fixing chamber 10 is pushed by the guide rod 15 or the guide pin 37, the nut 1 is moved in the direction bent from the guide face 28. The suction surface 34 is sucked and held.

  As described above, the abnormal nut 1 other than the normal dimension is not properly penetrated by the guide rod 15 or the guide pin 37 and the abnormal posture separated from the guide surface 28 as the supply rod 13 advances. , The guide surface 28 is bent in the bent direction, and is attracted to the suction surface 34. In other words, since the suction surface 34 is formed by bending the tip portion of the guide surface 28, the bent broken line 35 is interposed between the guide surface 28 and the suction surface 34 in a state like a ridge line. Therefore, the abnormal nut 1 having a size other than the normal dimension that has reached the bent broken line 35 moves toward the suction surface 34 with the bent bent line 35 as a boundary, and is held at a location separated from the guide surface 28. Supply is regulated.

  As described above, the abnormal nut 1 having a size other than the normal dimension is sucked and held on the suction surface 34 formed on the supply regulating member, and the abnormal nut 1 is stopped by the supply regulating member. Therefore, when the abnormal nut 1 other than the normal dimension is mixed and sent to the temporary lock chamber 10, the abnormal nut 1 is attracted to the suction surface 34 and can be visually checked. It becomes immediately clear that an abnormality has occurred in only the sorting function.

  The area of the suction surface 34 is set to a size that can suck and hold at least one abnormal nut 1 other than the normal dimension.

  Since the required area is given to the suction surface 34 as described above, the abnormal nut 1 that has moved from the guide surface 28 to the suction surface 34 is reliably held on the suction surface 34.

  In the vicinity of the attracting surface 34, a magnet 21 for attracting and holding the abnormal nut 1 other than the normal dimension is disposed.

  For the abnormal nut 1 that moves from the guide surface 28 to the suction surface 34, the force that the abnormal nut 1 sucks in the direction of transition from the guide surface 28 to the suction surface 34, and the suction surface 34 that is separated from the guide surface 28. A force for adsorbing the abnormal nut 1 is required. As described above, the magnets 21 generate the forces in the two types of directions, so that the abnormal nut 1 can be reliably adsorbed by arranging the magnets 21 at appropriate locations.

  The operational effects of the embodiment relating to the method for regulating the supply of perforated parts are the same as those of the supply regulating member.

  FIG. 6 shows a second embodiment of the present invention.

  In the second embodiment, regular hexagonal nuts are supplied.

  The entire supply device is indicated by reference numeral 100. A component supply passage 6 having a rectangular cross section larger than the nut 1 is formed by a supply pipe 7. A guide cylinder 8 is welded to the end of the supply pipe 7 in a state perpendicular to the end. A guide member 9 made of a thick plate-like member is fixed to the end of the supply pipe 7, thereby forming a temporary stop chamber 10. An outlet opening 11 through which the nut 1 is sent out is provided in the temporary fixing chamber 10.

  A support block 40 is welded to the guide member 9. The support block 40 is formed of an elongated rectangular parallelepiped member, and is welded in a state where it is assembled to a notch 41 formed at the upper end of the guide member 9. The protruding part of the support block 40 other than the part assembled to the notch 41 is an upper protruding part 42 on the upper side and laterally protruding parts 43 on the left and right sides, and the surfaces of both protruding parts 42 and 43 exist on one imaginary plane. doing. Therefore, as shown in FIG. 6C, a member in which the guide member 9 and the support block 40 are integrated is fixed to the end portion of the supply pipe 7.

  The notch 41 may be stopped, the back surface of the guide member 9 may be brought into close contact with the surface of the support block 40, and the guide member 9 and the support block 40 may be integrated by a method such as welding.

  The guide member 9 is attached with the upper projecting portion 42 and the lateral projecting member 43 in close contact with the end of the supply pipe 7. In order to prevent the screw hole axis of the regular hexagonal nut 1 from deviating from a predetermined position, the stopper surface 27 and the guide surface 28 continuous with the stopper surface 27 are semicircular, that is, a straight saddle shape.

  Since the guide surface 28 is bowl-shaped, the bent broken line 35 is also arcuate. 6 (A) and 6 (C) have a narrow width, the abnormal nut 1 is attracted to the right side as shown by a two-dot chain line in FIG. 6 (A). Become. FIG. 4D shows an example in which the suction surface 34 is enlarged. Other configurations are the same as those of the first embodiment including the portions not shown, and members having the same functions are denoted by the same reference numerals. Further, the operation in which the nut having the normal dimension is normally sent out and the behavior form in which the nut having the normal dimension reaches the suction surface 34 are the same as those in the first embodiment.

  The operational effects of the first embodiment described above are as follows.

  FIG. 6A is a cross-sectional view taken along line BB in FIG. 6A. As shown here, the arc diameters of the stopper surface 27 and the guide surface 28 are set so that at least three of the six outer corner lines of the nut 1 are in contact with the arc-shaped inner surface of the stopper surface 27. ing. By doing so, the nut 1 that has entered the temporary fixing chamber 10 has its screw hole axis 44 always stopped at a fixed position. Therefore, in the case of a normal dimension nut, the guide rod 15 and the screw hole 3 are in a coaxial state, and the guide rod 15 passes through the screw hole 3 correctly.

  Since the support block 40 is integrated with the guide member 9 and the upper projecting portion 42 and the laterally projecting members 43 are formed on the left and right of the support block 40, the upper projecting portion 42 and the laterally projecting members 43 on the left and right are provided at the end of the supply pipe 7. By adhering, the guide member 9 can be arranged easily and with sufficient attachment strength. In other words, the guide member 9 extending in the advancing direction of the supply rod 13 is likely to be misaligned when some external force is applied to the tip side thereof, but the support block 40 has a high mounting rigidity. Since it is connected to the end of the supply pipe 7, the mounting strength of the guide member 9 can be sufficiently secured.

  Since the permanent magnet 20 is incorporated in the support block 40, it becomes easy to set the installation location of the permanent magnet 20 to the optimum position using the size of the support block 40. Moreover, since the guide member 9 and the support block 40 are separate members, a semicircular groove is easily formed in the guide member 9.

  As shown in FIG. 6D, it is possible to increase the suction area of the suction surface 34 by bending the tip of the guide member 9.

  As described above, according to the apparatus of the present invention, the perforated parts having dimensions other than the normal dimensions are sucked and held on the suction surface formed on the guide member. Therefore, it can be used in a wide range of industrial fields such as automobile body welding processes and home appliance sheet metal welding processes.

DESCRIPTION OF SYMBOLS 1 Projection nut, perforated part 2 Main-body part 3 Screw hole 5 End surface 6 Parts supply passage 7 Supply pipe 9 Guide member 10 Temporary stop chamber 13 Supply rod 15 Guide rod 17 Advance / retreat drive means, air cylinder 20 Permanent magnet 21 Permanent magnet 27 Stopper Surface 28 Guide surface 34 Suction surface 35 Bending line 37 Guide pin 40 Support block 42 Upper projecting portion 43 Lateral projecting portion 100 Supply device

Claims (4)

  A temporary fixing chamber having a stopper surface formed on the guide member is provided at the end of the component supply passage, and a guide for a supply rod that moves forward and backward to a perforated component of a normal size received by the stopper surface of the temporary fixing chamber. In the type that feeds the perforated part to the target location by penetrating the rod or replacing the guide rod with a protruding guide pin and supplying the perforated part to the target location, the guide member is extended in the advancing direction of the supply rod A guide surface is formed on the front end of the guide member, and a suction surface is provided to bend the guide surface at the tip of the guide member so as to suck holes with holes other than the normal size. The perforated part supply regulation, wherein the perforated part is moved in a direction bent from the guide surface by being pushed by the end face of the part and sucked and held by the suction surface. Member.   2. The perforated component supply regulating member according to claim 1, wherein an area of the suction surface is wide enough to suck and hold at least one perforated component having a size other than the normal dimension.   The perforated component supply restricting member according to claim 1, wherein a magnet for attracting and holding a perforated component having a size other than the normal dimension is disposed in the vicinity of the suction surface. A temporary fixing chamber having a stopper surface formed on the guide member is provided at the end of the component supply passage, and a guide for a supply rod that moves forward and backward to a perforated component of a normal size received by the stopper surface of the temporary fixing chamber. In the type that feeds the perforated part to the target location by penetrating the rod or replacing the guide rod with a protruding guide pin and supplying the perforated part to the target location, the guide member is extended in the advancing direction of the supply rod Forming a guide surface, bending the guide surface at the tip of the guide member to prepare a perforated component supply regulating member provided with a suction surface for sucking a perforated component other than a regular dimension,
Without the guide rod or guide pin penetrating or entering the perforated part other than the regular dimension, the tip of the guide rod or guide pin presses the end surface of the perforated part other than the regular dimension so that the perforated part is removed from the guide surface. A method for restricting the supply of perforated parts, characterized in that it is moved in the bent direction and sucked and held on the suction surface.

Images