JP2019189452A - Component conveyance passage structure - Google Patents

Abstract

To allow metal-made passage member to be easily processed and surely cause the conveyance air pressure to activate on a shaft-like component, providing stable conveyance.SOLUTION: In a component conveyance passage structure, a shaft-like component 1 including a flange 2 and a shaft 3 is conveyed by air jet: a first flange passing part 23 and a first shaft passing part 24 are formed on a synthetic resin-made supply hose 22; a second flange passing part 28 communicating with the first flange passing part 23 and a second shaft passing part 29 communicating with the first shaft passing part 24 are formed on a metal-made introduction pipe 25 connected to the supply hose 22 and supplying the shaft-like component 1 to a target position; the second shaft passing part 29 is formed in such a manner that the second flange passing part 28 is communicated to the outside the introduction pipe 25; and a component passage at a portion of the introduction pipe 25 is made into a closed section structure by attaching a cover member 37 onto the introduction pipe 25.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a component conveyance path structure for conveying a shaft-shaped component such as a projection bolt having a flange and a shaft portion by air injection.

  The passage structure described in Japanese Patent Application Laid-Open No. 2-56305 conveys a flanged shaft-like component in a suspended state, and the passage member includes a flange passage portion through which the flange passes and an external flange passage portion. A shaft passing portion formed in a state of being communicated with is formed. And this channel | path member is opened in the vicinity of the supply rod front-end | tip part which is a supply location of a shaft-shaped component.

JP-A-2-56305

  In the case of conveying the shaft-shaped component by injecting the carrier air into the passage member, the flange passage portion of the passage member that opens toward the tip of the supply rod communicates with the outside through the shaft passage portion. There is a problem that the conveying air leaks from the shaft passage portion and the air conveying force for the shaft-shaped component cannot be secured. Further, since the passage member facing the supply rod is usually made of metal, there is a problem that it is difficult to bend or twist the passage member into a required shape.

  The present invention is provided in order to solve the above-described problems, and facilitates the processing and molding of the metal passage member that opens toward the target location, and the conveying air pressure with respect to the shaft-shaped component, The purpose is to make sure it works.

The invention according to claim 1
A shaft-shaped part in which a circular flange and a shaft part are integrated is conveyed by air injection,
The first flange passage portion through which the flange passes and the first shaft passage portion through which the shaft portion passes are formed in the synthetic resin supply hose extending from the component supply source,
A second flange passage portion on the introduction pipe side that communicates with the first flange passage portion, a metal introduction pipe that is joined to the supply hose and supplies the shaft-like component to a target location such as a supply rod; A second shaft passage portion on the introduction pipe side communicating with the one shaft passage portion is formed;
The second shaft passage part is formed in a mode of communicating the second flange passage part outside the introduction pipe,
A component conveying passage structure characterized in that a component member in a portion of the introduction pipe has a closed cross-sectional structure by attaching a cover member for preventing the conveyance air from diffusing from the second axis passage portion to the introduction pipe.

  The metal introduction pipe is joined to a supply hose made of synthetic resin, and supplies the shaft-like component to a target location such as a supply rod. The second flange passage portion on the introduction pipe side communicates with the first flange passage portion on the supply hose side, and the second shaft passage portion on the introduction pipe side communicates with the first shaft passage portion on the supply hose side. Are communicating. Therefore, the shaft-like component that has moved in the supply hose is smoothly and smoothly transferred to the introduction pipe, and the smooth transfer of the shaft-like component is surely performed from the supply hose to the introduction tube, so that good transfer can be obtained.

  Since the introduction pipe has a simple cross-sectional shape composed of the second flange passage portion and the second shaft passage portion, it is easy to process and shape a curved shape and a twist shape for the target portion of the supply of the shaft-like component, which is advantageous in terms of production. It is.

  By attaching the cover member to the introduction pipe, the carrier air is prevented from divergence from the second shaft passage portion to the outside, and the component passage in the part of the introduction pipe has a closed cross-sectional structure. Since the second shaft passage portion is formed in such a manner that the second flange passage portion communicates with the outside of the introduction pipe, the carrier air that has entered the second flange passage portion leaks from the second shaft passage portion, but the cover member Due to the closed cross-sectional structure by mounting, it is possible to prevent leakage and divergence of the carrier air outside the part passage. For this reason, the pressure of conveyance air can be made to act on the flange and axial part of a shaft-shaped component, and a shaft-shaped component can be reliably transferred.

It is sectional drawing of the whole apparatus, and sectional drawing of each part. It is a side view which shows the interference state of a supply channel | path member and a movable electrode. It is the side view which avoided the interference of a supply channel | path member and a movable electrode.

  Next, a mode for carrying out the component conveyance path structure of the present invention will be described.

  1 to 3 show an embodiment of the present invention.

  The present embodiment is a case where the component conveyance path structure according to the present invention is applied to a shaft-shaped component supply device.

  First, the shaft-like component will be described.

  There are various shaft-shaped parts such as a general bolt having a hexagonal head and a projection bolt having a circular flange. Here, the latter projection bolt is the target of supply. In the following description, the projection bolt may be simply expressed as a bolt.

  As shown in each drawing, particularly FIGS. 1 (C) and 1 (F), the shaft-like component 1 is a projection bolt, and a shaft portion 3 having a male screw is integrally formed at the center of a circular flange 2. Is provided. The flange surface opposite to the shaft portion 3 is a flat circular surface 4, and three welding projections 5 are provided on the back surface at intervals of 120 degrees.

  The bolt 1 is made of iron, which is a magnetic material. The outer peripheral part of the flange 2 is shown by the code | symbol 12. In the case of illustration, it has a round shape over the perimeter. The dimensions of each part of the projection bolt 1 are that the diameter and thickness of the flange 2 are 12 mm and 2.5 mm, respectively, and the length and diameter of the shaft part are 13 mm and 5 mm, respectively. In addition, the code | symbol 1 is attached | subjected also to the volt | bolt.

  Next, the whole shaft-part supply device will be described.

  The device here is a bolt supply device and is denoted by the reference numeral 100. In the illustrated case, the steel plate component 9 is placed on the fixed electrode 8, and the shaft portion 3 is inserted into the lower hole 10 of the steel plate component 9 and the receiving hole 11 of the fixed electrode 8. Although not shown, the shaft 3 may be inserted into an opening formed in the counterpart component. Therefore, the lower hole 10, the receiving hole 11, the opening of the counterpart component, and the like serve as insertion holes. The insertion hole is collectively denoted by reference numeral 6 as the lower hole 10, the receiving hole 11, the opening of the counterpart part, and the like. And the insertion hole 6 is arrange | positioned in the perpendicular direction, The axis line is described as insertion axis line O1-O1.

  The advancing / retracting movable electrode 7 that is paired with the fixed electrode 8 in the same coaxial state will be described in the section of the interference problem described later.

  The supply rod 13 that advances and retreats obliquely downward is accommodated in an outer cylinder 14 having a circular cross section, and the outer cylinder 14 is fixed to a stationary member 15 such as a machine frame of the apparatus 100. The supply rod 13 advances and retreats by the advance and retreat output of the air cylinder 16 coupled to the outer cylinder 14. The advancing / retreating direction is a direction in which the supply rod 13 advances obliquely downward and returns. Therefore, the center axis of the supply rod 13 is described as the advance / retreat axis O2-O2. The advancing / retreating axis O2-O2 intersects with the vertical insertion axis O1-O1 in an inclined state. This crossing angle is a constant angle and does not change even if the supply rod 13 is rotated.

  The cross-sectional shape of the supply rod 13 may be circular, but here, as shown in FIG. 1 (E), it is an oval type in which flat surfaces 31 and 32 are formed on the left and right. In order to prevent the supply rod 13 from rotating in the outer cylinder 14, the regulation pieces 33 and 34 welded to the inner side of the outer cylinder 14 are in close contact with the flat surfaces 31 and 32.

  The bolt 1 is transferred to the vicinity of the insertion hole 6 while being held at the tip of the supply rod 13. A mechanism for holding the bolt 1 on the supply rod 13 will be described later.

  Next, a bolt conveying structure will be described.

  Various parts can be used as the parts supply source. In this case, the parts feeder 18 is used. A “component conveyance path structure” is employed in which the bolt 1 stored in the parts feeder 18 is conveyed to the vicinity of the tip of the supply rod 13 in a predetermined posture. Sending vibration is applied to the circular bowl 19 and the accelerating structure 20 is sent out, where high-speed jet air is blown from the jet pipe 21 to the bolt 1 and conveyed. A synthetic resin supply hose 22 made of urethane resin or the like is connected to the acceleration structure 20. As shown in FIG. 1D, the supply hose 22 has a T-shaped passage space formed by a first flange passage portion 23 through which the flange 2 passes and a first shaft passage portion 24, that is, a component passage. Is formed. The carrier air blown into the passage space having the T-shaped cross section does not leak to the outside because the passage space has a closed sectional structure.

  The length of the supply hose 22 ranges from 3 to 4 m and is curved or twisted. A stainless steel introduction pipe 25 is welded to the outer cylinder 14 via a coupling piece 26 to form a curved portion 27. A second flange passage portion 28 formed in the introduction pipe 25 communicates with the first flange passage portion 23. The second shaft passage portion 29 through which the shaft portion 3 passes is like an open groove communicating with the outside, and communicates with the first shaft passage portion 24. As described above, the introduction pipe 25 has a shape in which the gap through which the shaft portion 3 passes, that is, the second shaft passage portion 29 is provided below the second flange passage portion 28. The introduction pipe 25 is a supply passage member for the bolt 1. Instead of the coupling piece 26, the leading end portion of the introduction tube 25 may be directly welded to the end portion of the outer cylinder 14.

  This supply passage member is also denoted by reference numeral 25. When the bolt 1 passes through the curved portion 27 of the supply passage member 25, the bolt 1 is sent out to the advance space 30 of the supply rod 13 from a direction substantially orthogonal to the advance / retreat axis O2-O2.

  When the joint member 34 having a square frame shape is welded to the end portion of the introduction pipe 25 and the end portion of the supply hose 22 is press-fitted into the joint member 34, the first flange passage portion 23 on the supply hose 22 side becomes the introduction pipe 25 side. The first shaft passage portion 24 on the supply hose side 22 communicates with the second shaft passage portion 29 on the introduction pipe 25 side. Since the curved portion 27 is provided, a U-shape or a V-shape is formed by the outer tube 14 and the introduction tube 25 as shown in FIG.

  The bolt 1 is conveyed at high speed by powerful air injection. At such a high speed, it may be difficult to hold the tip of the supply rod 13 or the tip of the supply rod 13 may be damaged. In order to solve such a problem, stop means for temporarily stopping the bolt 1 is employed. As the stopping means, various means such as a means for stopping by attracting with a magnet and a means for stopping by protruding a stopper member can be adopted. Here, the latter stopper member is used.

  The air cylinder 35 is fixed to the upper surface of the introduction pipe 25, and the piston rod 36 protrudes or retreats to the second flange passage portion 28. When the bolt 1 is conveyed at high speed while protruding, it is received by the piston rod 36 and temporarily stopped.

  The bolt 1 once stopped is transferred by the carrier air from the injection pipe 21, but here the carrier air diverges to the outside from the second shaft passage portion 29 through which the shaft portion 3 passes. In other words, the air pressure with respect to the shaft portion 3 cannot be obtained. Therefore, the cover member 37 is attached to the introduction pipe 25 so that the part passage at the site of the introduction pipe 25 has a closed cross-sectional structure so that the carrier air does not diverge from the second shaft passage portion 29 to the outside of the part passage. The part passage in the part of the introduction pipe 25 has a closed cross-sectional structure. Since the shaft portion 3 protrudes from the second shaft passage portion 29, the protruding space portion is surrounded by the cover member 37. This means that the passage space formed by the second flange passage 28, the second shaft passage 29, and the space in the cover member 37 has a closed cross-sectional structure. The cover member 37 is inserted into the joint member 34 with no gap in a state of being integrated with the introduction pipe 25, and in this way, a component passage formed in the component passage of the supply hose 22 and the metal portion. Communicate with each other to form a component transport passage structure.

  As shown in FIG. 1C, the cover member 37 has a U-shaped cross section, and has a curved shape that can match the curved portion 27 of the introduction tube 25. Various structures can be adopted as the structure in which the cover member 37 is integrated with the introduction pipe 25. Here, a plate-like fixing piece 38 welded to the cover member 37 is brought into close contact with the side surface of the introduction pipe 25, and a fixing bolt is used. 17, the fixed piece 38 is coupled to the introduction tube 25. As a cover structure other than this, it is also possible to attach a cover member having an arc cross section. Further, instead of the connecting structure via the fixing piece 38 and the fixing bolt 17, a tightening band that surrounds the introduction pipe 25 and the cover member 37 may be used. The cover member 37 is processed and molded separately from the introduction tube 25 and assembled to the introduction tube 25 so as to match the curved shape of the introduction tube 25 and the like.

  By attaching the cover member 37 as described above, it is possible to prevent the carrier air from escaping from the component passage at the site of the introduction pipe 25, and the carrier air hits the outer peripheral portion 12 and the shaft portion 3 of the flange 2. When retreating, the bolt 1 is supplied to the supply rod 13 at a moderate speed.

  Next, a structure for holding a bolt at the tip of the supply rod will be described.

  A receiving recess 39 of the flange 2 is formed at the tip of the supply rod 13. FIG. 2B is a view showing a state in which the receiving recess 39 is looked up from below. The receiving recess 39 is provided with a holding surface 40 to which the surface 4 of the flange 2 is in close contact, an arc portion 41 that matches the outer peripheral portion 12 of the flange 2, and an inlet passage portion 42 through which the flange 2 passes. The depth dimension L1 of the receiving recess 41 viewed in the entry direction 2 is set to be approximately the same as or larger than the diameter dimension of the flange 2. The flange 2 that has passed through the second flange passage portion 28 enters the receiving recess 39 so as to slide through the inlet passage portion 42, and stops when the flange 2 matches the arc portion 41. The depth dimension H of the receiving recess 39 viewed almost in the direction of the component axis O3-O3 is set slightly larger than the thickness of the flange 2.

  FIG. 2 shows a state in which the supply rod 13 is not rotating around the advance / retreat axis O2-O2. In this state, the component entry line O4-O4, which is the entry direction line of the flange 2, passes through the center of the receiving recess 39, and the bolt 1 is inserted into the insertion hole 6 while drawing an arc locus along with this. The center point A1 is located on the part entry line O4-O4. The arc portion 41 extends 90 degrees on both sides of the component entry line O4-O4.

  A structure in which the surface 4 of the flange 2 is brought into close contact with the holding surface 40 and the adhesion force to the holding surface 40 is extinguished when the supply rod 13 advances to a predetermined position is employed as the suction means 44. As the suction means 44, various types such as an air suction type and an electromagnet type can be adopted. Here, the permanent magnet type is also indicated by the reference numeral 44.

  The supply rod 13 is a hollow shaft into which an inner shaft 45 is inserted in a slidable state. A recess is provided near the tip of the inner shaft 45 and a permanent magnet 44 is embedded therein. In order to protect the permanent magnet 44, a cover plate 46 is fixed to the end of the inner shaft 45 by welding or the like, and the surface of the cover plate 46 is the holding surface 40 described above.

  FIGS. 1A and 1F show a state in which the inner shaft 45 is stopped at the most advanced position. At this time, the receiving recess 39 is waiting for the flange 2 to enter, and the flange 2 Enters the receiving recess 39 from the second flange passing portion 28 through the inlet passing portion 42 and stops in conformity with the arc portion 41. In this stopped state, the surface 4 of the flange 2 is in close contact with the holding surface 40 by the attractive force of the permanent magnet 44. When the supply rod 13 advances to the vicinity of the insertion hole 6 by the operation of the air cylinder 16, the attractive force of the permanent magnet 44 is extinguished, and the lower end portion of the shaft portion 3 enters the insertion hole 6 while drawing an arc locus. go. In addition, the permanent magnet 43 is installed as a suction assistance when the flange 2 enters the receiving recess 39. This is accommodated in a container welded to the end of the outer cylinder 14, and the flange 2 entering is strongly sucked so that the arc part 41 can be reliably reached.

  In order to introduce and hold the bolt 1 at the tip of the supply rod 13, the above-described receiving recess 39 is formed. Instead of the receiving recess 39, a simple flat surface is provided at the tip of the supply rod 13, It is also possible to form a stopper member that receives the flange 2 that has entered here.

  Next, the advancing / retreating structure of the magnet will be described.

  The suction force control of the suction means means control of whether the bolt 1 is held at the distal end of the supply rod or whether the holding is released. Therefore, as described above, an air suction type or an electromagnet type can be adopted. Here, the permanent magnet method is a mechanical method in which the permanent magnet 44 is attracted closest to the bolt 1 or is separated to substantially eliminate the attractive force.

  The permanent magnet 44 is separated from the flange 2 to substantially eliminate the attractive force on the bolt 1. As a structure for this purpose, a thin bar is coupled to the permanent magnet 44, and the bar is moved forward and backward to move the permanent magnet 44 away from the flange 2, or an air cylinder is coupled to the end of the inner shaft 45, so that the inner shaft 45 You can adopt things that move forward and backward. Here, the latter inner shaft advance / retreat type is adopted.

  As described above, the supply rod 13 is inserted into the hollow tubular hollow shaft 13A in a state where the inner shaft 45 can be advanced and retracted, and the restriction pin 47 fitted to the inner shaft 45 is opened to the hollow shaft 13A. It protrudes into the outer cylinder 14 through the hole 48. A compression coil spring 49 is interposed between the upper end portion of the inner shaft 45 and the inner end surface of the hollow shaft 13A, and the tension acts in the direction of pushing out the inner shaft 45, and by this tension, the restricting pin 47 has the long hole 48. It hits the bottom edge. In this state, the inner shaft 45 is placed at the foremost position, the above-described receiving recess 39 is formed, and the flange 2 can be received.

  An air cylinder 50 as a driving means is fixed to the outer surface of the outer cylinder 14, an engagement piece 52 is coupled to the piston rod 51, and the outer cylinder 14 passes through a long hole 53 opened in the outer cylinder 14. Projecting inside. The engagement piece 52 and the regulation pin 47 are set to have relative positions so that the regulation pin 47 can face the engagement piece 52 when the supply rod 13 moves by a predetermined length of stroke.

  Next, the holding of the bolt shaft portion will be described.

  When the bolt 1 slides into the receiving recess 39 while the flange 2 moves in the second flange passage portion 28, the holding stability of the bolt 1 is secured and the bolt 1 is securely held at the tip of the supply rod 13. There is a need to. The bolt 1 is transferred by the blast air or attracted by the permanent magnet 43 and smoothly enters the receiving recess 39, and the outer peripheral portion 12 of the flange 2 matches the arc portion 41 and stops. At this time, the lower end portion of the shaft portion 3 may swing clockwise in FIG. 1A due to inertial force. When the speed of entry of the bolt 1 into the receiving recess 39 is too high, there is a problem that the bolt 1 falls from the receiving recess 39.

  In order to solve such a problem, an advancing / retracting holding member 55 is disposed. The holding member 55 is formed of a substantially rectangular parallelepiped elongated member, and a holding groove 56 into which the shaft portion 3 enters is formed. The holding member 55 is made of, for example, stainless steel. The holding groove 56 opens to the introduction tube 25 side so as to communicate with the second shaft passage portion 29, and a receiving surface 57 that receives the shaft portion 3 is formed on the opposite side. It is desirable that the receiving surface 57 has a circular arc shape in which the shaft portion 3 exactly matches. The width dimension of the holding groove 56 is set slightly larger than the diameter dimension of the shaft portion 3. The holding member 55 is disposed in the advance space 30 of the supply rod 13. When the holding member 55 exists in the advance space 30, the holding member 55 functions to receive the bolt 1, and at this time, the supply rod 13 cannot advance.

  Since the holding member 55 needs to be retracted when the supply rod 13 advances, as shown in FIG. 1B, the holding member 55 is moved to the position indicated by the two-dot chain line. This is operated by the advance / retreat driving means 58 fixed to the introduction tube 25 or the stationary member 15. Here, an air cylinder is employed as the advance / retreat driving means, and the piston rod 59 is coupled to the holding member 55. FIG. 1B is a plan view seen from the direction (B) of FIG.

  The holding position of the holding member 55 is two positions: a standby position where the holding member 55 is stopped in the advance space 30 of the supply rod 13 and a retreat position where the advance space 30 of the supply rod 13 is secured by retraction of the holding member 55. It is said that. That is, the standby position shown by the solid line in FIG. 1A and the retracted position shown by the two-dot chain line.

  When the bolt 1 is conveyed and the flange 2 is received by the arc portion 41 of the receiving recess 39, the shaft portion 3 that has entered the holding groove 56 is received by the receiving surface 57 almost simultaneously. Therefore, the bolt 1 is reliably held at the tip of the supply rod 1 without causing the above-described inertial abnormal displacement. Thereafter, the holding member 55 is retracted to the position shown by the two-dot chain line by the operation of the air cylinder 58, and the supply rod 13 can be advanced.

  Next, rotation of the supply rod and the outer cylinder will be described.

  FIG. 2 is a side view of the bolt supply device 100 as viewed from the side. In this state, the introduction tube 25, the cover member 37, and the like interfere with the movable electrode 7, and the device does not hold. Therefore, the outer cylinder 14 is rotated around the advance / retreat axis O2-O2 to avoid the interference. For this purpose, a straight outer cylinder 14 is attached to the stationary member 15 in a state in which position adjustment in the rotational direction is possible. As the position adjustment structure in the rotation direction of the outer cylinder 14, the outer cylinder 14 can be sandwiched by a V-shaped block, or a fastening member that can be elastically displaced can be used. Here, it is the latter type of fastening member.

  A stainless steel fastening member 60 is fixed to the stationary member 15. A tightening hole 61 through which the outer cylinder 14 passes is formed in the tightening member 60, and the tightening hole 61 communicates with the outside through a split groove 62. A fastening bolt 63 that acts to narrow the gap between the split grooves 62 is screwed into the fastening member 60.

  When the tightening bolt 63 is loosened and the outer cylinder 14 is rotated to adjust the position, and then the tightening bolt 63 is tightened, the outer cylinder 14 is firmly tightened in the tightening hole 61 and the adjustment of the rotational position is completed. By such position adjustment, the interference state of FIG. 2 is avoided and the non-interference state shown in FIG. 3 is established.

  Next, the depth dimension of the receiving recess will be described.

  When the outer cylinder 14 is rotated, the receiving recess 39 is also rotated together. In order to prevent the introduction tube 25, the cover member 37, and the like from interfering with neighboring members such as the movable electrode 7, the outer tube 14 is rotated to rotate the introduction tube 25, the cover member 37, and the like together. When the rotation angle θ is 30 degrees, as shown in FIG. 3B, the center point A1 of the arc locus of the bolt 1 exists at a position displaced by 30 degrees from the component entry line O4-O4. ing. Since the arc-shaped portion is sufficiently present on both sides of the center point A1, which is the lowest point, that is, the depth dimension L1 of the receiving recess 39 viewed in the component entry line O4-O4 direction is set to be sufficiently long. Therefore, the bolt 1 can be inserted into the insertion hole 6 by drawing an accurate arc locus with the center point A1 as the base point on the bolt 1.

  As shown in FIG. 3C, for example, when the introduction tube 25, the cover member 37, and the like are largely shifted as shown in FIG. 3C, the depth of the receiving recess 39 is a short dimension L2. In some cases, one of the arc-shaped portions formed on both sides of the center point A1 has a sufficient angular range, but the other angular range is reduced. For this reason, the arc locus of the bolt 1 with the center point A1 as the lowest point may not be accurately drawn. That is, the flange outer peripheral portion 12 on one side of the center point A1 matches the arc portion 41 with a sufficient angle range, but the flange outer peripheral portion 12 on the other side of the center point A1 has an arc portion 41 with a slight angle range. It will be in a state that only matches. Therefore, the retaining property of the flange 2 in the arc portion 41 having a slight angle range becomes unstable, and a deflection displacement occurs in the arc locus drawn by the tip portion of the shaft portion 3, so that the insertion hole 6 does not enter smoothly. Arise.

  Such an abnormal phenomenon is caused by the fact that the depth dimension L2 of the receiving recess 39 is excessively small. Therefore, the depth dimension L1 of the receiving recess 39 viewed in the approach direction of the flange 2 (part entry line O4-O4 direction). However, it is necessary to set to approximately the same as or larger than the diameter of the flange 2. By setting in this way, even if the rotation angle θ is increased, the bolt is inserted while drawing a stable arc locus.

  When the supply rod 13 is rotated, if the angle is given to the advance / retreat axis O2-O2 and the component axis O3-O3 of the bolt 1, a slight arc displacement of the bolt tip portion occurs due to the rotation of the supply rod. However, since the inner diameter of the insertion hole 6 is set to be slightly larger, this arc displacement is absorbed. If there is no such absorption margin dimension, the position of the advance / retreat axis O2-O2 is finely adjusted, and the relative position of the bolt tip and the insertion hole 6 is finely adjusted. In general, the crossing angle between the advance / retreat axis O2-O2 of the supply rod 13 and the component axis O3-O3 of the bolt 1 is not very narrow, and the crossing relationship is almost a straight line.

  It should be noted that an electric motor that performs forward / backward output can be employed instead of the various air cylinders. It is also possible to replace the various permanent magnets with electromagnets.

  The parts feeder is of a type that vibrates the bowl, but it may be of a type in which the parts are attracted to a rotating plate by a magnet and sent out from a delivery pipe. The parts feeder 18 described above is of a type that vibrates the bowl 19, but instead of this, a magnet is assembled to a standing rotary disk and the parts adsorbed by the rotation of the disk are guided to the delivery passage. Can be.

  The illustration of the air supply / discharge pipe to each air cylinder is omitted.

  Operations such as the above-described advance / retreat operation of the supply rod and air injection 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 embodiment described above are as follows.

  The metal introduction pipe 25 is joined to a supply hose 22 made of synthetic resin and supplies the bolt 1 to a target location such as the supply rod 13. The second flange passage portion 28 on the introduction tube 25 side communicates with the first flange passage portion 23 on the supply hose 22 side, and the introduction tube 25 communicates with the first shaft passage portion 24 on the supply hose 22 side. The second shaft passage portion 29 on the side is in communication. Therefore, the bolt 1 that has moved in the supply hose 22 is smoothly transferred to the introduction pipe 25 with continuity, and the smooth transfer of the bolt 1 is reliably performed from the supply hose 22 to the introduction pipe 25, so that a good transfer can be obtained. It is done.

  Since the introduction pipe 25 has a simple cross-sectional shape including the second flange passage portion 28 and the second shaft passage portion 29, it becomes easy to process and shape a curved shape or a twist shape for the target portion of the bolt supply. It is advantageous.

  By attaching the cover member 37 to the introduction pipe 25, the carrier air is prevented from divergence from the second shaft passage portion 29 to the outside, and the component passage at the site of the introduction pipe 25 has a closed cross-sectional structure. Since the second shaft passage portion 29 is formed in such a manner that the second flange passage portion 28 communicates with the outside of the introduction pipe 25, the carrier air that has entered the second flange passage portion 28 leaks from the second shaft passage portion 29. However, the closed cross-sectional structure by attaching the cover member 37 can prevent leakage and divergence of the carrier air. For this reason, the pressure of conveyance air can be made to act on the flange 2 and the axial part 3 of the volt | bolt 1, and the volt | bolt 1 can be transferred reliably.

  Since the introduction tube 25 and the cover member 37 are separately processed and molded and then integrated with each other, the shape required for the introduction tube 25 and the cover member 37 can be easily processed and molded, which is advantageous in terms of production. is there. After the introduction tube 25 and the cover member 37 are integrated in advance, it is extremely difficult to perform processing such as bending and twisting, and the problem in this respect is solved.

  As described above, according to the component conveyance path structure of the present invention, it is easy to process and mold the metal path member that opens toward the target location, and the conveyance air pressure is reliably applied to the shaft-shaped component. Stable conveyance of shaft-like parts is realized. 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 bolt, shaft-shaped component 2 Flange 3 Shaft part 4 Surface 6 Insertion hole 7 Movable electrode 8 Fixed electrode 10 Lower hole 11 Receiving hole 12 Outer peripheral part 13 Supply rod 13A Hollow shaft 14 Outer cylinder 22 Supply hose 23 First flange passage part 24 First shaft passage 25 25 Introduction pipe 28 Second flange passage 29 Second shaft passage 30 Advance space 37 Cover member 39 Receiving recess 40 Holding surface 41 Arc portion 42 Entrance passage 44 Suction means, permanent magnet 45 Inner shaft 55 Holding member 56 Holding groove 57 Receiving surface 58 Advancing / retreating drive means, air cylinder 60 Tightening member 100 Bolt supply device O1-O1 Insertion axis O2-O2 Advancing / retreating axis O3-O3 Component axis O4-O4 Component entry line A1 Center point, lowest point L1 depth dimension

Claims (1)

A shaft-shaped part in which a circular flange and a shaft part are integrated is conveyed by air injection,
The first flange passage portion through which the flange passes and the first shaft passage portion through which the shaft portion passes are formed in the synthetic resin supply hose extending from the component supply source,
A second flange passage portion on the introduction pipe side that communicates with the first flange passage portion, a metal introduction pipe that is joined to the supply hose and supplies the shaft-like component to a target location such as a supply rod; A second shaft passage portion on the introduction pipe side communicating with the one shaft passage portion is formed;
The second shaft passage part is formed in a mode of communicating the second flange passage part outside the introduction pipe,
A component conveying passage structure characterized in that a component member in a portion of the introduction pipe has a closed cross-sectional structure by attaching a cover member for preventing the conveyance air from diffusing from the second shaft passage portion to the introduction pipe.

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