JP5164006B2 - Parts delivery passage structure - Google Patents

Description

  The present invention relates to a component delivery passage structure, in which a screw hole is provided in the center of a hexagonal main body, and three welding protrusions are formed at intervals of 120 degrees on one corner of the main body. A rectangular projection nut is targeted for delivery.

It is known that a delivery path of a parts feeder provided with a vibrating circular bowl is inclined in the width direction, and two guide protrusions are arranged in parallel on the delivery path surface. The projection protrusion of the projection nut is caught by the guide protrusion, and the face-up nut is normally delivered. Further, the reverse nut opposite to this slides in the width direction on the guide protrusion and falls to the side of the delivery passage.
JP 2005-041685 A

  In the above-mentioned type, a square projection nut is usually the target of delivery. However, the projection nut is of a hexagonal type in which a screw hole is provided in the center of the hexagonal main body, and three welding projections are formed at intervals of 120 degrees on one corner of the main body. It is necessary to set the arrangement of the guide ridges to be unique to the hexagon.

  The present invention is provided in order to solve the above-mentioned problems. The orientation of the hexagonal projection nut in which three welding projections are formed at intervals of 120 degrees at one corner of the main body is determined. It is an object of the present invention to provide a component delivery passage structure that can be maintained in a fixed orientation.

Means to solve the problem

According to the first aspect of the present invention, the parts to be delivered are provided with a screw hole at the center of the hexagonal main body, and three welding projections at intervals of 120 degrees on one side of the main body. It is a hexagonal projection nut formed, and two guide ridges are arranged in parallel in a delivery passage formed of an elongated flat surface, and this delivery passage is inclined so that one side becomes lower when viewed in the width direction. Yes, by forming the welding projections at intervals of 120 degrees, a gap L1 through which the guide protrusion can pass is formed between the welding projection in the left-right symmetrical position and the other one welding projection, guide ribs spacing one welding protrusion is positioned between the two guide ridges, two welding protrusions located symmetrically position is set to the size which is positioned outside the both guide ribs, said delivery The guide protrusion on the lower side of the passage Auxiliary guide ridges are provided in parallel with the auxiliary guide ridges.The height of the auxiliary guide ridges is set to be substantially the same as the height of the guide ridges, and the inner side faces the outer side of the hexagonal projection nut. It is a parts delivery passage structure characterized by being a guide wall for guiding .

  In the following description, the hexagonal projection nut may be simply expressed as a nut.

The invention's effect

  In the case of a front-facing nut that is transferred by engaging the welding protrusion with the guide protrusion, one welding protrusion is disposed between the guide protrusions, and the two welding protrusions are disposed outside the guide protrusion. In this state, it slides on the delivery path surface. The position of the nut in the rotational direction is regulated by the positional relationship between the welding projection and the guide projection, that is, the locking relationship. Therefore, the nut is transferred in a state in which the side surface of the nut facing in the parallel state is substantially parallel to the guide protrusion. Therefore, the nut can be sent out in an orderly manner along the longitudinal direction of the delivery passage. In addition, when the welding protrusion is positioned upward and is transferred in the state of a back-facing nut without being engaged with the guide protrusion, the nut slides on the guide protrusion in the width direction of the delivery passage. , Falls from the delivery passage and is eliminated.

An auxiliary guide protrusion is provided on the lower side of the delivery passage in a state parallel to the guide protrusion, and the height of the auxiliary guide protrusion is set to be substantially the same as the height of the guide protrusion. The inner surface is a guide wall that guides the outer surface of the hexagonal projection nut .

  Therefore, the outer side surface, that is, the lateral side surface of the front-facing nut moves while being guided by the guide wall of the auxiliary guide protrusion. Therefore, the setting of the direction of the nut by the guide protrusion can be made more accurate. For example, when the welding protrusion is small, the positioning in the rotational direction is incomplete only with the engagement relationship between the welding protrusion and the guide protrusion, but the direction of the nut is accurately determined by such a function of the guide wall. Can be set.

The invention according to claim 2 is provided with a regulation gate for prohibiting the passage of the reverse-facing nut with the welding protrusion positioned above the delivery passage, and the reverse-facing nut is positioned on the guide protrusion. 2. The component delivery passage structure according to claim 1 , wherein the welding projection reaching an abnormal height is regulated by the upper edge of the regulation gate.

  By positioning the reverse-facing nut on the guide ridge, the welding protrusion reaching the abnormal height is restricted by the upper edge of the restriction gate, and the feeding of the nut in the abnormal direction is prohibited. Prevent troubles. On the other hand, the welding nut slides on the delivery passage surface, and its height is lower than the reverse nut by the height of the guide ridge, so the position in the rotational direction is secured as specified. Reach the regulatory gate. Therefore, the nut height is in a state where it can pass through the restriction gate, and the passage of the restriction gate is not hindered by the shift in the rotation direction, and smooth nut feeding is performed.

According to a third aspect of the present invention, there is provided the parts delivery path structure according to the first or second aspect , wherein the delivery path is installed in a parts feeder having a vibrating circular bowl.

  Since the parts delivery passage structure as described above is assembled in the parts feeder provided with the vibrating circular bowl, the delivery function of the parts feeder is ensured.

  Next, the best mode for carrying out the component delivery passage structure of the present invention will be described.

  1 to 5 show a first embodiment.

  First, the target hexagonal projection nut will be described.

  As shown in FIG. 5, the nut 1 is formed with a screw hole 3 in the center of a regular hexagonal main body 2, and three welding protrusions 4 are provided on one side of the main body 2 at intervals of 120 degrees. In this embodiment, the welding protrusions 4 are arranged at hexagonal corners. And the outer side surface 5 which consists of six surfaces, ie, a horizontal side surface, is formed, and the outer side surface 5 which opposes is parallel. As shown in FIG. 5B, the welding protrusion 4 is a flat isosceles triangle, and a guide protrusion is provided between the end of the lower welding protrusion 4 and the end of the upper welding protrusion 4. A gap L1 through which the strip 7 can pass is formed. The gap L1 is a virtual space through which the welding projection 7 can pass.

  As shown in FIG. 1, the delivery passage 6 is made of an elongated steel plate, and two guide ridges 7 are arranged in parallel along the longitudinal direction thereof. The delivery passage 6 is seen on one side when viewed in the width direction. It is inclined so as to be low. The tilt angle is indicated by θ. As shown in FIG. 1 (D), the gap between the guide protrusions 7 is located between the two guide protrusions 7 so that one welding protrusion 4 located on the front side in the nut traveling direction is in a symmetrical position. The two welding protrusions 4 at the rear in the traveling direction are set to a size that is positioned outside the both guide protrusions 7. Such a positional relationship between the welding protrusion 4 and the guide protrusion 7 is ensured by passing the guide protrusion 7 through the gap L1. In other words, since the welding projections 4 are arranged at intervals of 120 degrees and the shape thereof is a flat isosceles triangle, the welding projection 4 and the guide projection 7 are used by utilizing the shape of the welding projection 4. The positional relationship is set. In addition, the two welding protrusions 4 in the left-right symmetric position may be arranged on the front side in the traveling direction.

  The left-right direction at the left-right symmetric position is a direction orthogonal to the longitudinal direction of the delivery passage 6 or a direction orthogonal to the longitudinal direction of the guide protrusion 7. FIG. 1D is a plan view showing the positional relationship between the welding protrusion 4 and the guide protrusion 7, and the member on the delivery passage 6 side is shown by a two-dot chain line.

  An auxiliary guide ridge 8 is provided on the lower side of the delivery passage 6 in parallel with the guide ridge 7, and the height of the auxiliary guide ridge 8 is a guide as shown in FIG. The height is set to be substantially the same as the height of the protrusion 7, and the inner side surface thereof is a guide wall 9 that guides the outer side surface 5 of the nut 1 or the outer side surface of the welding projection 4. Reference numeral 10 denotes a guide plate that prevents the nut 1 from falling to the opposite side for some reason. (D) As shown in the figure, when the positional relationship between the welding protrusion 4 and the guide protrusion 7 is as described above, the outer surface 5 is parallel to the guide wall 9, and the outer surface 5 and the guide A slight gap exists between the wall 9 and the outer surface 5 can slide on the guide wall 9.

  In order to transfer the nut 1, it is necessary to apply some transfer force. For this purpose, the delivery path 6 is inclined downward, or the delivery path 6 is given a vibration for conveyance.

  In the front-facing nut 1 in which the welding projection 4 is located on the lower side, one welding projection 4 is located between the guide protrusions 7 and the other two welding projections 4 in the left-right symmetrical position are guide projections. It is located on the outside of Article 7. That is, the guide ridge 7 has passed through the gap L1. Therefore, even if the nut 1 tries to move in the left-right direction of the guide ridge 7 or the delivery passage 6, the movement of the welding projection 4 against the guide ridge 7 is restricted. Further, the movement of the nut 1 in the rotational direction is similarly restricted.

  The back-facing nut 1 in which the welding projection 4 is positioned on the upper side cannot contact the guide projection 7 with the welding projection 4, so that the auxiliary guide projection 8 as shown by a two-dot chain line in FIG. And falls from the delivery passage 6 and is eliminated.

  2 to 4 are plan views in the case where the delivery passage 6 having the above-described configuration is applied to the parts feeder 12, and only necessary portions are cut away. About the same structure as already demonstrated, the same code | symbol is described in FIGS. 2-4, and detailed description is abbreviate | omitted.

  This parts feeder 12 is provided with a spiral delivery passage along the inside of the circular bowl 13 and gives the bowl 13 a combined vibration in the vertical direction (perpendicular to the plane of FIG. 2) and the circumferential direction. Thus, the nut 1 is transferred counterclockwise on the delivery passage. This delivery passage is the “delivery passage 6” indicated by reference numeral 6. An auxiliary guide protrusion 8 is formed by cutting out a part of the outer wall plate 14 standing outside the delivery passage 6.

  A delivery pipe 16 having a rectangular cross section is welded to the end of the delivery path 6, the sliding surface of the delivery path 6 and the sliding surface of the delivery pipe 16 are smoothly continuous, and the guide protrusion 7 is located inside the delivery pipe 16. It extends to. The delivery pipe 16 is welded to the outer surface of the bowl 13 via a coupling plate 17.

  The delivery passage 6 is provided with a regulation gate 18 that prohibits passage of the back-facing nut. In the case of FIG. 2, a regulation gate 18 is provided at the boundary portion between the delivery passage 6 and the delivery pipe 16. As shown in FIG. 3, the regulation gate 18 has a rectangular cross section. The gate width is set to be slightly larger than the dimension L2 (see FIG. 5B) between the parallel outer surfaces 5 of the nut 1 facing each other. Further, the gate height allows the front-facing nut 1 in which the welding projection 4 slides on the surface of the delivery passage 6 to pass, but the back-facing nut 1 placed on the guide protrusion 7 has the welding projection 4 on the gate height. It is set to a value regulated at the upper edge of the regulation gate 18. That is, since the reverse nut 1 is placed on the guide protrusion 7, it becomes higher by that amount and is caught by the upper edge 19 of the restriction gate 18 as shown in FIG.

  As described above, the outer wall plate 14 is notched in order to form the auxiliary guide protrusion 8. By this notch, the rear end of the auxiliary guide protrusion 8, that is, the front end of the outer wall plate 14 is vertically moved. An engagement corner 20 extending in the direction is formed. As shown in FIGS. 4B and 4C, the outer surface 5 of the nut 1 that is abnormally displaced is received by the engagement corner 20, so that the nut 1 is Turned clockwise. As shown in FIG. 3 (A), it passes through the regulating gate 18 in the normal direction.

  A receiving box 15 is attached to the outside of the bowl 13, and the reverse nut 1 that has fallen from the delivery passage 6 is accommodated in the receiving box 15.

  The above-described parts feeder 12 is of a type that vibrates the bowl 13, but instead of this, a magnet is assembled to an upright rotating disk and the parts adsorbed by the rotation of the disk are guided to the delivery passage. Can be. A guide ridge 7, a restriction gate 18 and the like are provided in the delivery passage.

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

  In the case of the front-facing nut 1 in which the welding protrusion 4 is engaged and transferred to the guide protrusion 7, one welding protrusion 4 is arranged between the guide protrusions 7, and the two welding protrusions 4 are guides. In a state of being arranged outside the protrusion 7, it slides on the surface of the delivery passage 6. The position of the nut 1 in the rotational direction is regulated by the positional relationship, that is, the locking relationship between the welding projection 4 and the guide projection 7. Therefore, the nut 1 is transferred in a state in which the lateral side surface 5 of the nut 1 facing in a parallel state is substantially parallel to the guide protrusion 7. Therefore, the nut 1 can be sent out in an orderly manner along the longitudinal direction of the delivery passage 6. Further, when the welding protrusion 4 is positioned upward and is transferred in the state of the back-facing nut 1 without being engaged with the guide protrusion 7, the nut 1 moves over the guide protrusion 7 on the delivery passage 6. It slides in the width direction of, falls from the delivery passage 6 and is eliminated.

  An auxiliary guide protrusion 8 is provided on the lower side of the delivery passage 6 in a state parallel to the guide protrusion 7, and the height of the auxiliary guide protrusion 8 is set to be substantially the same as the height of the guide protrusion 7. In addition, the inner side surface thereof is a guide wall 9 that guides the outer side surface 5 of the nut 1.

  Therefore, the outer side surface 5, that is, the lateral side surface of the front nut 1 moves while being guided by the guide wall 9 of the auxiliary guide protrusion 8. Alternatively, the outer surface of the welding projection 4 moves while being guided by the guide wall 9. Therefore, the setting of the direction of the nut 1 by the guide protrusion 7 can be made more accurate. For example, when the welding protrusion 4 is small, the positioning in the rotational direction and the width direction of the delivery passage 6 is incomplete only by the engagement relationship between the welding protrusion 4 and the guide protrusion 7. The function of 9 can set the direction of the nut 1 accurately.

  The delivery passage 6 is provided with a regulating gate 18 that prohibits the passage of the reverse nut 1 with the welding protrusion 4 positioned above, and the reverse nut 1 is positioned on the guide protrusion 7 to cause an abnormality. The welding protrusion 4 reaching the height is regulated by the upper edge 19 of the regulation gate 18.

  Since the reverse-facing nut 1 is positioned on the guide protrusion 7, the welding protrusion 4 reaching the abnormal height is regulated by the upper edge 19 of the regulation gate 18, and the nut 1 of the abnormal orientation is Sending is prohibited, preventing troubles in the post process. On the other hand, since the welding nut 4 slides on the surface of the delivery passage 6 and the overall height of the front nut 1 is lower than the reverse nut 1 by the height of the guide protrusion 7, the position in the rotational direction is It is secured as predetermined and reaches the regulation gate 18. Therefore, the nut height is in a state where it can pass through the regulation gate 18, and the passage of the regulation gate 18 is not hindered by a deviation in the rotation direction, and smooth nut feeding is performed.

  The delivery passage is installed in a parts feeder having a vibrating circular bowl.

  Since the parts delivery passage structure as described above is assembled to the parts feeder 12 having the vibration type circular bowl, the delivery function of the parts feeder 12 is ensured.

  As described above, according to the present invention, a hexagonal projection nut having three welding projections formed at intervals of 120 degrees on one side corner of the main body is targeted for delivery, and the orientation of the nut during transfer is determined. Since it is a parts delivery passage structure that can be maintained in a certain direction, it can be used in a wide range of industrial fields such as a car body welding process for automobiles and a sheet metal welding process for household appliances.

It is the top view and sectional drawing of a delivery channel | path. It is a partial top view of a parts feeder. It is (3)-(3) sectional drawing of FIG. It is the side view and top view of the delivery channel | path in a parts feeder. It is an external view of a hexagonal projection nut.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hexagon projection nut 2 Main-body part 3 Screw hole 4 Welding protrusion 5 Outer side surface, lateral side 6 Delivery passage 7 Guide protrusion 8 Auxiliary guide protrusion 9 Guide wall L1 Gap 12 Parts feeder 18 Restriction gate 19 Upper edge part 20 Engagement Corner

Claims (3)

The parts to be delivered are hexagonal projection nuts in which a screw hole is provided in the center of the hexagonal main body, and three welding projections are formed at intervals of 120 degrees at one corner of the main body. There are two guide ridges arranged in parallel in a delivery path formed by an elongated flat surface, and this delivery path is inclined so that one side becomes lower when viewed in the width direction, and welded at intervals of 120 degrees By forming the projection for use, a gap L1 through which the guide projection can pass is formed between the welding projection in the left-right symmetric position and the other welding projection, and the interval between the guide projections is one. The welding protrusion is positioned between the two guide protrusions, the width of the two welding protrusions at the left and right symmetrical positions is set to the outside of both guide protrusions, and the guide protrusion is positioned on the lower side of the delivery passage. Auxiliary gas in parallel with the strip De ridge is provided, the auxiliary guide ribs together with its height is set to be substantially the same as the height of the guide ribs, the guide wall inner surface thereof for guiding the outer surface of the hexagonal pro jection nut A part delivery passage structure characterized by the above . The delivery passage is provided with a regulating gate that prohibits the passage of the reverse nut with the welding protrusion positioned above, and the reverse nut has reached an abnormal height by being positioned on the guide protrusion. The component delivery passage structure according to claim 1 , wherein the welding protrusion is regulated by an upper edge of the regulation gate. The parts delivery passage structure according to claim 1 or 2, wherein the delivery passage is installed in a parts feeder having a vibrating circular bowl.

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