JP2009184014A - Feeding device for shaft-like component - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a feeding device for a shaft-liked component which can simplify transfer path of the shaft-liked component and is easily adoptable to spatially restricted locations. <P>SOLUTION: A holding member 8 having an inlet opening 10 and an outlet opening 11 is attached to a feeding rod 6 movable back and forth. The holding member 8 is equipped with a stopping means 13 to temporally hold the shaft-liked component 1 coming into the holding member 8 and a supporting means 24 to press the shaft-liked component 1 against an inside face of the holding member 8. After the feeding rod 6 moves forth, the shaft-liked component 1 falls off from the holding member 8 and arrives at an target position. A passage 22 is arranged so as to have the shaft-liked component 1 relatively pass through the holding member 8, when the holding member 8 moves back. The passage 22 is arranged at a position in the extended direction of the feeding rod 6. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an apparatus for supplying a shaft-like component.

Japanese Patent No. 3689847 discloses a supply device in which a shaft-like component is received by a cup-shaped holding member attached to a supply rod, and then the supply rod is advanced and supplied to a target location.
Japanese Patent No. 3689847

  The supply device as described above is configured to send the shaft-shaped component from the cup-shaped holding member in a direction opposite to the direction of entering the holding member. That is, the approach direction and the delivery direction of the shaft-shaped component with respect to the holding member are opposite to each other. Therefore, for example, it is necessary to adopt a structure that feeds the shaft-shaped component upward, which is structurally complicated. At the same time, since it is necessary to accurately set the movement trajectory of the shaft-like component, it is difficult to maintain high operation accuracy.

  The present invention has been provided to solve the above-described problems, and can provide a shaft-shaped component supply device that can simplify a moving path of a shaft-shaped component and can be easily adopted in a spatially constrained location. The purpose is to provide.

Means to solve the problem

  In the first aspect of the present invention, a hollow holding member having an inlet opening on the upper side and an outlet opening on the lower side is attached to a supply rod that moves forward and backward, and the shaft-like component that has entered the holding member is Stopper means for temporary stop is provided in the vicinity of the outlet opening, and holding means for preventing the fall by pressing the shaft-shaped part against the inner surface of the holding member is provided on the holding member. A passing part through which the shaft-shaped part that has reached the target position can pass relatively through the holding member during the return operation of the holding member is provided in the holding member, and this passing part is arranged at a location in the extending direction of the supply rod A shaft-shaped component supply device characterized by

The invention's effect

  The shaft-shaped part that has entered from the inlet opening is temporarily stopped by the stopper means, and subsequently held by the holding means against the inner surface of the holding member so as not to fall. Thereafter, when the supply rod advances and stops at a position where the holding member is located above the target position, and the pressing of the holding means is released, the shaft-shaped part falls and reaches the target position from the outlet opening.

  Since the shaft-like component that has entered the holding member from the inlet opening is sent out from the outlet opening without changing the direction as it is, the movement trajectory of the shaft-like component is simplified to ensure reliable supply and simple structure. Is realized. Since it is such a movement locus from the inlet opening to the outlet opening, the holding member can be constituted by, for example, a cylindrical member, and the structure can be simplified.

  Furthermore, since the shaft-shaped part is prevented from falling while being pressed against the inner surface of the holding member, it is easy to hold and release the shaft-shaped part by simply releasing the pressing to release the shaft-shaped part and dropping it. It can be executed with simple operation. In addition, the structure for pressing does not hinder the passage of the outlet opening, and is suitable for smooth movement of the shaft-like component.

  Since the passage portion is provided, the holding member can be returned by the retraction of the supply rod even if a part or a corresponding portion of the shaft-like component that has reached the target location exists in the holding member. Thereby, even if the space in the vertical direction is narrow, the supply device can be installed without being restricted.

  According to a second aspect of the present invention, in the shaft-shaped component supply device according to the first aspect, the passage portion is open at the outlet opening side and extends toward the inlet opening side.

  Because of this shape, as described above, the holding member can be returned while the shaft-shaped component that has reached the target location remains at that position, and even if it is a long shaft-shaped component, The holding member can be advanced and retracted while minimizing the required space in the length direction.

  According to a third aspect of the present invention, the stopper means is attached to the stationary member, and protrudes into the outlet opening when the holding member is stopped at the retracted position. This is a supply device for the shaft-shaped part.

  Since the stopper means is attached to the stationary member, the stopper means remains when the holding member advances after the shaft-like component temporarily stopped by the stopper means is prevented from falling by the holding means. Therefore, when the holding member stops above the target position, the stopper member does not exist in the vicinity of the outlet opening, and the shaft-like component is smoothly delivered from the outlet opening. Moreover, the structure of the stopper member having no movability can be obtained, and the structure can be simplified and the operational reliability can be improved.

  According to a fourth aspect of the present invention, the pressing of the holding means is a direction in which the shaft-shaped component is pressed against the inner surface at a position displaced from the passage portion. The axial shape according to any one of the first to third aspects. This is a component supply device.

  As described above, since the shaft-like component is pressed against the inner surface at a position shifted from the passage portion, the shaft-like component can be reliably prevented from falling without being affected by the space portion of the passage portion.

  According to a fifth aspect of the present invention, in the housing space of the holding member that accommodates the shaft-shaped component, a cross section in a direction substantially orthogonal to the dropping direction of the shaft-shaped component is circular. It is a supply apparatus of the described shaft-shaped components.

  As described above, since the holding space of the holding member has a circular cross section, the pressing direction of the shaft-like component and the passing space of the passing portion can be divided to achieve reliable pressing and passing.

  According to a sixth aspect of the present invention, the shaft-shaped component is a tubular member, and the target location is a guide pin provided on an electrode for electric resistance welding. The shaft-shaped device according to any one of the first to fifth aspects. This is a component supply device.

  When the supply rod is advanced, the lower portion of the holding member is advanced to the vicinity of the guide pin, and then the shaft-shaped component is dropped, the guide pin relatively enters the shaft-shaped component. Therefore, the shaft-like component stops just above the guide pin and falls from there, so that the drop distance is shortened. Since the drop distance is short as described above, the guide pin surely enters the shaft-like component, the component supply to the guide pin is accurately performed, and the operation reliability of the apparatus is improved. In addition, when a guide pin is provided on the fixed electrode and a movable electrode is installed facing the fixed pin, the distance between the two electrodes can be shortened, which is effective for downsizing of the welding apparatus and the movable electrode. The operation stroke can be shortened, and the cycle time can be shortened.

  Next, the best mode for carrying out the shaft-part supply device of the present invention will be described.

  1 to 7 show a first embodiment.

  First, the shaft-like component handled in the present invention will be described.

  There are various types of shaft-like parts such as an elongated member having a circular or square cross section or an elongated member having a hollow cross section. A shaft-like component 1 shown in FIG. 1B is a tube having a circular cross section, and a flange-like member 3 is formed at the end of the cylindrical portion 2. The shaft-like component 1 shown in FIG. 3C is a tubular member without a flange-like member. Further, the shaft-like component 1 shown in FIG. 4D is a solid cylindrical member. These shaft-like parts 1 are made of iron.

  In the first embodiment, the shaft-like component 1 shown in FIG. 1B is a supply target. The dimensions of each part of the same part are 43 mm in length, 14 mm in diameter of the cylindrical part 2, 20 mm in diameter of the flange-shaped member 3, 3 mm in thickness of the cylindrical part 2, 8 mm in inner diameter of the cylindrical part 2, Is 70 grams.

  Next, the structure of the entire supply device will be described.

  FIG. 1A is a side view of the entire supply apparatus. The entire supply device is indicated by reference numeral 100. A guide cylinder 5 is fixed in an inclined posture to a stationary member 4 constituted by a machine frame of the apparatus. A supply rod 6 passes through the guide cylinder 5. An air cylinder 7 is coupled to the upper end of the guide cylinder 5, and the supply rod 6 is advanced and retracted by its advance / retreat output. Accordingly, the supply rod 6 moves back and forth in an oblique direction.

  In the first embodiment, the target location for supplying the shaft-shaped component 1 is the fixed electrode 16 for electric resistance welding. More precisely, it is a guide pin 17 provided on the fixed electrode 16. A steel plate part 18 is placed on the fixed electrode 16, and a welding protrusion 19 is provided on the steel plate part 18. A movable electrode 20 facing the fixed electrode 16 is disposed. The axes of both electrodes 16 and 17 are arranged in a substantially vertical direction.

  Next, the holding member will be described.

  A holding member 8 is joined to the tip of the supply rod 6 by welding or the like. As shown in other drawings, the holding member 8 is formed of a cylindrical member, and its axis is arranged in a substantially vertical direction. As is clear from FIGS. 3 and 4, the internal space of the holding member 8 is an accommodation space 9, and an inlet opening 10 is provided on the upper side and an outlet opening 11 is provided on the lower side.

  Stopper means 13 for temporarily stopping the shaft-like component 1 that has entered the housing space 9 is disposed in the vicinity of the outlet opening 11. In order to constitute the stopper means 13, an elongated stopper member 14 is fixed to the guide cylinder 5 by welding or the like and extends in parallel with the supply rod 6. Therefore, the stopper means 13 is in a stationary state. An upper surface 15 of the stopper member 14 projects into the accommodating space 9 in the vicinity of the outlet opening 11. In order to make such a protrusion, a notch 12 is provided at the lower end of the holding member, and when the holding member 8 is retracted, the leading end of the stopper member 14 enters relatively here.

  As described above, since the stopper member 14 is in a stationary state, the stopper function is automatically achieved when the holding member 8 is retracted, and the stopper function is automatically released when the holding member 8 is advanced. Effective for simplification.

  As shown by the two-dot chain line in FIG. A passage portion 22 is provided in the member 8. The passage portion 22 is open on the outlet opening 11 side and extends from the passage opening 22 toward the inlet opening 10. This open part is indicated by reference numeral 23. As apparent from FIGS. 2 and 5, the passage portion 22 is formed at a location in the extending direction of the supply rod 6, that is, at a location facing the supply rod 6. Accordingly, as shown by a two-dot chain line in FIG. 6, when the supply rod 6 moves backward from the state where the shaft-shaped component 1 reaches the steel plate component 18, the shaft-shaped component 1 remains combined with the guide pin 17. The holding member 8 can retreat.

  Next, the holding means will be described.

  This holding means presses the shaft-like component 1 against the inner surface of the holding member 8 and prevents the shaft-like component 1 from falling. Reference numeral 24 denotes a holding means. In order to obtain a pressing force, the air cylinder 25 is fixed to the outer peripheral surface of the holding member 8, and its piston rod 26 projects into the accommodation space 9. This is a so-called push rod type. An air pipe 28 is joined to the air cylinder 25 in order to apply air pressure to the back surface of the piston 27 of the air cylinder 25. The air pipe 28 is connected to a ventilation path 29 provided in the supply rod 6. The air passage 29 is connected to an air supply source (not shown). A return spring 30 is inserted between the piston 27 and the inner end surface of the air cylinder 25.

  Therefore, when air pressure acts on the piston 27 from the air pipe 28, the piston rod 26 advances while the return spring 30 is compressed, pressing the shaft-shaped component 1 against the inner surface of the holding member 8, and the shaft-shaped component 1 is prevented from falling. The When dropping the shaft-like component 1, if the air pressure is lowered, the piston 27 is pushed back by the tension of the return spring 30, and the piston rod 26 moves backward. Thereby, the pressing force to the shaft-shaped component 1 disappears, and the shaft-shaped component 1 is dropped.

  When the shaft-shaped component 1 is pressed against the inner surface of the holding member 8, it is necessary that the shaft-shaped component 1 does not interfere with the passage portion 22. Therefore, the pressing point P of the shaft-like component 1 against the inner surface of the holding member 8 is shifted by a distance S from the corner portion 21 of the passage portion 22 in the circumferential direction. That is, S is a deviation distance. The center line of the piston rod 26 coincides with the diameter line of the holding member 8, and the pressing point P exists on this diameter line. By installing such a deviation distance S, the shaft-like component 1 does not enter the passage portion 22 and is reliably pressed against the inner surface of the holding member 8 to prevent the fall.

  Although the case of the air cylinder 25 having a push function has been described as an example of the holding means 24, an electromagnetic solenoid may be used instead.

  Next, parts transfer to the holding member will be described.

  The shaft-shaped component 1 is sent out from the parts feeder 33. If the shaft-like component 1 is transferred at a high speed and collides with the upper surface 15 of the stopper member 14 protruding from the holding member 8, the upper surface 15 may be worn or damaged early. In order to avoid such a problem, the stopper unit 34 is arranged.

  In this stopper unit 34, an inlet pipe 36 and an outlet pipe 37 are joined to a case main body 35, and an advancing / retracting stopper piece 38 is inserted into the case main body 35. Yes. A stopper unit 34 is fixed by a bracket 40 fixed to the stationary member 4. As shown in FIG. 1A, when the stopper piece 38 closes the inlet pipe 36, the shaft-like component 1 is temporarily stopped at the stopper piece 38 as shown by a two-dot chain line. When the stopper piece 38 retreats and the inlet pipe 36 and the outlet pipe 37 communicate with each other, the shaft-shaped component 1 slowly falls into the accommodation space 9 of the holding member 8.

  Next, the dimensional relationship of each part will be described.

  As shown in FIG. 5, the width W of the passage portion 22, the diameter D1 of the cylindrical portion 2, and the diameter D2 of the flange-like member 3 are in a magnitude relationship of D2> W> D1. By doing so, even if the flange-like member 3 tries to pass through the passage portion 22, it is blocked and the pressing and holding in the holding member 8 is maintained. In this case, as shown in FIG. 6, the upper end of the cylindrical portion 2 is pressed against the inner surface of the holding member 8. When pressed in this way, the shaft-like component 1 is brought close to one side as shown in FIG. The shaft-shaped component 1 can be accurately dropped onto the guide pin 17 by positioning the guide pin 17 almost directly below the shaft-shaped component 1 brought close to the above.

  Further, as apparent from FIG. 5, the shaft-like component 1 is in a state of being biased toward the pressing point P side when pressed by the piston rod 26. The reason why the inner diameter of the housing space 9 is larger than the inner diameter of the flange-shaped member 3 of the shaft-shaped component 1 is to facilitate the smooth entry of the shaft-shaped component 1 into the holding member 1. And by giving roundness or a taper shape to the front-end | tip part of the guide pin 17, even if the axis line of the guide pin 17 and the axis line of the shaft-shaped component 1 are offset, it makes it match with the guide pin 17 smoothly. Can do.

  FIG. 6 shows the relationship between the height dimensions of the respective parts. When the holding member 8 advances and stops above the guide pin 17, and then the pressing of the air cylinder 25 is released, the shaft-like component 1 reaches the steel plate component 18 as shown by the two-dot chain line, and the guide pin 17 enters relatively into the shaft-shaped part 1 to be in a matched state. The height H1 of the shaft-shaped component 1 shown in the two-dot chain line is set to be lower than the height H2 from the surface of the steel plate component 18 to the upper portion of the passage portion 22.

  When the holding member 8 is stopped above the guide pin 17, the lower end of the holding member 8 is located close to the tip of the guide pin 17, or the position where the tip of the guide pin has entered the housing space 9. Thus, the stop position of the holding member 8 is set. By doing so, the holding member 8 can be moved backward even if a part or a corresponding portion of the shaft-like part 1 that has reached the steel plate part 18 exists in the accommodation space 9. Since the flange-like member 3 is positioned below the holding member 8 at the time of the retreat, only the cylindrical portion 2 passes through the passage portion 22 when the holding member 8 is retreated.

  In addition, as shown in FIG. 6, the shaft-like component 1 protrudes from the passage portion 22 by setting a magnitude relationship of the height of the holding member 8> the height H1 of the shaft-like component> the height of the passage portion 22. It can be positioned in the storage space 9 without any effect, and the holding state in the holding member 8 is excellent.

  In order to prevent the upper end of the holding member 8 from interfering with the lower end portion of the movable electrode 20 when the holding member 8 is advanced and retracted, the distance between the upper end of the holding member 8 and the lower end portion of the movable electrode 20 is considered in consideration of the advance / retreat inclination angle of the supply rod 6. Is set to L1. And the space | interval of the front-end | tip of the guide pin 17 and the lower end part of the movable electrode 20 is shown with the code | symbol L2. As described above, since the holding member 8 can be sufficiently brought close to the steel plate part 18 and stopped, the interval L2 obtained by adding L1 to the holding member 8 is set as the interval between the electrodes 16 and 20. L2 set in this way is a minimized space dimension, and it is possible to install the supply device 100 effectively in a place where space is limited.

  The shaft-shaped component 1 is pressed against the inner surface of the holding member 8 because of the function of a so-called push rod. In order to obtain the same function as this, the shaft-like component 1 can be sucked into the inner surface of the holding member 8 and pressed. FIG. 7 is a specific example in such a case. This uses an electromagnet 32, and the end surface of the electromagnetic core 31 constitutes a part of the inner surface of the holding member 8, and the central portion thereof is the pressing point P. The other configuration is the same as that of the holding means 24 including a portion not shown, and members having the same function are denoted by the same reference numerals.

  It should be noted that an electric motor that performs forward / backward output can be employed instead of the various air cylinders.

  The above-described operation can be easily performed by a generally adopted control method, and a signal is transmitted at a predetermined position of an air switching valve or an air cylinder operated by an operation signal from a control device or a sequence circuit. This can be ensured by combining sensors that emit and transmit to the control device.

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

  The shaft-like component 1 that has entered from the inlet opening 10 is temporarily stopped by a stopper member 14 that is stopper means, and subsequently pressed against the inner surface of the holding member 8 by a piston rod 26 that is holding means so that it does not fall. Retained. After that, when the supply rod 6 moves forward and the holding member 8 stops at a position above the guide pin 17 which is the target location, and the pressing of the piston rod 26 is released, the shaft-like component 1 falls and the outlet opening is opened. 11 reaches the surface of the steel plate part 18.

  Thus, the shaft-like component 1 that has entered the holding member 8 from the inlet opening 10 is sent out from the outlet opening 11 without changing the direction as it is, so that the movement locus of the shaft-like component 1 is simplified and reliable. Simplification of supply and structure is realized. Since it is such a movement locus from the inlet opening 10 to the outlet opening 11, the holding member 8 can be constituted by, for example, a cylindrical member, and the structure can be simplified.

  Furthermore, since the shaft-shaped component 1 is prevented from falling in a state where it is pressed against the inner surface of the holding member 8, the holding of the shaft-shaped component 1 is released and dropped by simply releasing the pressing, and the shaft-shaped component 1 is held. And release can be performed with a simple action. Further, the structure for pressing does not hinder the passage of the outlet opening 11 and is suitable for smooth movement of the shaft-like component 1.

  Since the passage portion 22 is provided, even if a part or a corresponding portion of the shaft-like component 1 standing up in alignment with the guide pin 17 is present in the accommodation space 9, it is retained by the retraction of the supply rod 6. The member 8 can be returned. During the returning operation, the cylindrical portion 2 passes through the passage portion 22 relatively. This is because the diameter D1 of the cylindrical portion 2 is set smaller than the width W of the passage portion 22. In addition, since the flange-shaped member 3 is located on the steel plate part 18, the flange-shaped member 3 is separated from the passage portion 22, and the flange-shaped member 3 does not interfere with the passage portion 22. As described above, the so-called overlapping state in which the shaft-like component 1 is fitted in the holding member 8 and the passage function of the passage portion 22 are not restricted even when the vertical space is narrow. The supply device can be installed.

  The passage portion 22 is open at the outlet opening 11 side and extends to the inlet opening 10 side.

  Due to such a shape, as described above, the holding member 1 can be returned while the shaft-shaped component 1 that matches the guide pin 17 remains at the position, and the long shaft-shaped component 10 is thus formed. However, the required space in the length direction can be minimized and the holding member 8 can be advanced and retracted.

  The stopper member 14 is attached to the guide cylinder 5 which is a stationary member, and protrudes into the outlet opening 11 in a state where the holding member 8 is stopped at the retracted position.

  Since the stopper member 14 is in a stationary state, after the shaft-like component 1 temporarily stopped by the stopper member 14 is prevented from falling by the holding means 8, the stopper member 14 remains when the holding member 8 advances. Will remain. Therefore, when the holding member 8 stops above the fixed electrode 16, the stopper member 14 is not in the vicinity of the outlet opening 11, and the shaft-like component 1 is smoothly delivered from the outlet opening 11. Moreover, the structure of the stopper member 14 having no movability can be obtained, and the structure can be simplified and the operational reliability can be improved. Furthermore, since the pressing by the piston rod 26 is performed in a state where the shaft-shaped component 1 is positioned by the stopper member 14, the stop position of the shaft-shaped component in the holding member 8 can be set accurately.

  The pressing of the piston rod 26 in the holding means 24 is a direction in which the shaft-like component 1 is pressed to a pressing point P that is shifted from the corner portion 21 of the passage portion 22, that is, a distance S in the circumferential direction.

  As described above, since the shaft-like component 1 is pressed against the pressing point P at a location shifted from the passage portion 22, the shaft-like component 1 can be reliably prevented from falling without being affected by the space portion of the passage portion 22. .

  The housing space 9 of the holding member 8 that houses the shaft-shaped component 1 has a circular cross section in a direction substantially perpendicular to the direction in which the shaft-shaped component 1 drops.

  As described above, since the housing space 9 of the holding member 1 has a circular cross section, the pressing direction of the shaft-like component 1 and the passing space of the passing portion 22 can be divided to achieve reliable pressing and passing.

  The shaft-like component 1 is a tubular member, and the target location of the supply is a guide pin 17 provided on a fixed electrode 16 for electric resistance welding.

  When the supply rod 6 is advanced, the lower part of the holding member 1 is advanced to the vicinity of the guide pin 17 and then the shaft-shaped component 1 is dropped, so that the guide pin 17 relatively enters the shaft-shaped component 8. Therefore, since the shaft-like component 1 stops just above the guide pin 17 and falls from there, the drop distance is shortened. Since the drop distance is short as described above, the guide pin 17 surely enters the shaft-like component 1 and the component supply to the guide pin 17 is accurately performed, and the operation reliability of the apparatus is improved. In addition, when the guide electrode 17 is provided on the fixed electrode 16 and the movable electrode 20 is installed opposite to the guide pin 17, the distance between the electrodes 16 and 20 can be shortened, which is effective for reducing the size of the welding apparatus. In addition, the operation stroke of the movable electrode 20 can be shortened, and the cycle time can be shortened.

  As described above, according to the present invention, the moving path of the shaft-shaped component can be simplified, and a shaft-shaped component supply device that can be easily adopted in a spatially constrained location can be obtained. It can be used in a wide range of industrial fields such as welding processes and sheet metal welding processes for household appliances.

It is the side view of the whole apparatus, and the side view of a shaft-shaped component. It is a top view of a holding member. It is (3)-(3) sectional drawing of FIG. It is (4)-(4) sectional drawing of FIG. It is the top view which expanded the holding member. It is a side view which shows the operation | movement space of a holding member. It is sectional drawing which shows another holding means.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Shaft-shaped component 2 Cylindrical part 3 Flange-shaped member 6 Supply rod 8 Holding member 9 Accommodating space 10 Inlet opening 11 Outlet opening 13 Stopper means 14 Stopper member 16 Fixed electrode 17 Guide pin 18 Steel plate part 20 Movable electrode 21 Corner part 22 Passing part 24 Holding means 25 Air cylinder 26 Piston rod 32 Electromagnet 100 Supply device P Pressing point W Passing portion width D1 Diameter of cylindrical portion D2 Diameter of flange-shaped member S Shift distance

Claims (6)

  A hollow holding member having an inlet opening on the upper side and an outlet opening on the lower side is attached to a supply rod that moves forward and backward, and the shaft-like component that has entered the holding member is temporarily stopped in the vicinity of the outlet opening. Stopper means is provided, and holding means that prevents the fall by pressing the shaft-shaped part against the inner surface of the holding member is provided on the holding member, and after the supply rod has advanced, the shaft-shaped part that has fallen from the holding member and reached the target location However, the holding member is provided with a passage portion that can relatively pass through the holding member during the return operation of the holding member, and the passage portion is disposed at a location in the extending direction of the supply rod. Feeding device.   2. The shaft-shaped component supply device according to claim 1, wherein the passage portion has a shape that is open on an outlet opening side and extends toward an inlet opening side.   The shaft-part supply device according to claim 1 or 2, wherein the stopper means is attached to a stationary member and protrudes into the outlet opening in a state where the holding member is stopped at the retracted position.   The supply device for a shaft-shaped component according to any one of claims 1 to 3, wherein the pressing of the holding means is a direction in which the shaft-shaped component is pressed against the inner surface at a location shifted from the passage portion.   The shaft-shaped component supply device according to any one of claims 1 to 4, wherein the holding space of the holding member that stores the shaft-shaped component has a circular cross section in a direction substantially perpendicular to the dropping direction of the shaft-shaped component. .   The shaft-shaped component supply device according to any one of claims 1 to 5, wherein the shaft-shaped component is a tubular member, and the target location is a guide pin provided on an electrode for electric resistance welding.

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