JP2006160426A - Parts feeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a parts feeder capable of changing the attitude of parts to a predetermined attitude by simple constitution, and feeding the same one by one with preset timing. <P>SOLUTION: Parts P stored in a storing means 10 are taken out, the shafts Pa of the parts P are inserted in an opening groove 47 formed between a pair of rail members 48 extended obliquely downward from the upstream part 42 of a shoot rail 41 to the downstream part 42, the head part Pb is held between a pair of inclined surfaces 44 gradually separated from each other in the cross direction with upward shifting from both lower edge parts 46, and hung down, the lower end of the shaft Pa is suspended in the erect attitude state of projecting downward over both lower edge parts 46 to maintain such an attitude state, a moving floor plate 52 is lifted in a predetermined timing to block up the opening groove 47 to change the attitude of the part P from the erect attitude state to the inclined attitude state so that the part is transferred to the downstream side by sliding. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a parts feeder for transferring parts having a shaft portion and a head having a diameter larger than that of the shaft portion.

  Conventionally, a bolt having a shaft portion and a head portion whose diameter is enlarged at the base end portion of the shaft portion is suspended between two rail members and the shaft portion is held in a standing posture state, and vibrations are generated. A parts feeder has been proposed in which the vibration generated by the means is applied to the two rail members to vibrate the bolts, and the bolts are transferred from the upstream side to the downstream side of the rail members in such a standing posture and continuously supplied. (For example, refer to Patent Document 1).

JP 2000-85960 A

  However, since the conventional parts feeder generates vibration by the vibration means, there is a concern that the noise will be large, the work environment will be deteriorated, and the influence on the surroundings such as the stress of the worker will be caused. In addition, the vibration may be transmitted to surrounding devices and the like to cause problems such as hindering normal operation or inducing loosening of the fastening portion inside the device.

  Therefore, the conventional parts feeder needs to be provided with an anti-vibration mechanism for preventing transmission of vibrations to the surroundings, and the price has increased accordingly. In addition, precise maintenance such as checking whether the parts feeder itself is not loosened or the like has been required, which has led to an increase in running cost.

  In addition, the conventional parts feeder that transfers parts by vibration only aligns a plurality of parts and continuously transfers them, and cannot supply parts one by one at a preset timing. Therefore, it is necessary to provide a separate supply device, and the price has increased by the amount of the supply device, resulting in high costs.

  In view of these problems, the present invention has been made in order to solve the problems of the prior art. The object of the present invention is to change the posture of a part to a predetermined posture state with a simple configuration, and at a preset timing 1 It is to provide a parts feeder that can be supplied one by one.

  The parts feeder according to the first aspect of the present invention that solves the above-mentioned problems is a parts feeder that transports parts having a shaft portion and a head that has a diameter larger than that of the shaft portion. Is provided with supply means for changing the posture to a predetermined posture state and supplying them one by one at a predetermined timing, the supply means being arranged in parallel spaced apart from each other in a diagonally downward direction from the upstream portion toward the downstream portion A pair of inclined members having a pair of extending rail members, and having a pair of inclined surfaces that are gradually spaced apart from each other in the lateral width direction as they transition from the lower side to the upper side on the opposing surfaces of the pair of rail members. A chute rail having an opening groove extending from the upstream part to the downstream part and having a width wider than the shaft part of the part and narrower than the head part between the lower end edges of the The head is sandwiched between a pair of inclined surfaces that extends along the lower edge at the lower position of the cable and is separated downward from the lower edge by lowering and supplied between the pair of rail members. The shaft is inserted into the opening groove and hangs down, and the lower end of the shaft is suspended in a standing posture in which the lower end protrudes below the lower edge. The lower end of the part is pushed toward the downstream side of the head, the posture of the part is changed from the standing posture state to the inclined posture state that extends along the lower edge and the shaft portion is located on the downstream side. And a movable floor plate that is slid from the upstream side of the chute rail toward the downstream side thereof.

  According to a second aspect of the present invention, in the parts feeder according to the first aspect, the supply means is provided integrally with the moving floor plate, and is interposed between a pair of inclined surfaces of the chute rail when the moving floor plate is lowered. Is divided into an upstream portion side and a downstream portion side, and has a stopper for preventing the sliding of the parts held in the standing posture state on the chute rail to the downstream side.

  According to a third aspect of the present invention, in the parts feeder according to the first or second aspect, the storage unit stores a plurality of parts made of a magnetic material, and the supply unit extracts the parts one by one from the storage unit. The storage means has a box shape with an open top, and has a vertical wall portion with an opening formed from the bottom to the top, and the pickup means extends along the vertical wall portion. A rotating plate that has a circular disk shape, is closed at the radially outer portion of the flat portion and is supported so as to be rotatable around the central axis, and a radially outer portion of the flat portion of the rotating plate. A magnet capable of attracting parts, a rotary drive unit that rotates the rotating plate in a direction in which the radially outer portion moves upward from below the opening at a preset rotational speed, and an upper position of the storage means On the flat part of the rotating plate When a gap is formed between the flat part and one part can pass through, and a plurality of parts are attracted to one magnet and taken upward from the storage means, other than one part The supply means has a take-out number restricting part that restricts the number of parts attracted to one magnet by contacting and separating from the magnet, and the supply means rotates the flat part of the rotating plate from top to bottom An upstream portion is provided along the radially outer portion of the flat surface portion in the moving-down descending rotational movement region, protrudes from the upstream portion toward the radially outer side of the rotating plate, and gradually moves downward as it moves away from the rotating plate. Inclining downward and extending in a straight line, the downstream part is continuously provided on the chute rail, and is attracted to the magnet and moved from the upper part to the lower part of the lower side rotational movement region by the rotation of the rotating plate Over tool to thereby disengage the contact with parts from the magnet, it is slid from the upstream portion to the downstream portion and having a part receiving portion for supplying the chute rail.

  According to a fourth aspect of the present invention, in the parts feeder according to the third aspect, the supply means has a pair of inclined surfaces in which the parts receiving portion gradually approaches from the upper edge toward the lower edge, and the lower edge. The cross-sections that are coupled to each other to form the bottom are formed of a long plate member having a V-shape.

  According to a fifth aspect of the present invention, in the parts feeder according to the third or fourth aspect, the supply means protrudes at a plane portion of the rotating plate and at a position spaced apart from the rotation center of the rotating plate by a predetermined distance in the radial direction. The drive pin extends along the lower end edge of the chute rail at a position below the chute rail, and a base end portion is disposed in the descending rotational movement region and on the track of the drive pin, below the base end portion by the drive pin. The top floor is swung upward by pushing the head to raise the moving floor plate, while the bottom end is swung downward by releasing the base end by the drive pin. And a rocking lever for lowering the floor plate.

  According to the first aspect of the present invention, by supplying the parts received from the storage means between the pair of rail members in a state in which the moving floor board is spaced downward from the lower end edge of the chute rail, the heads are paired. It is sandwiched between the inclined surfaces and the shaft part is inserted into the opening groove and hangs down, and the lower end of the shaft part is changed to a standing posture in which the lower end protrudes below the lower edge, and suspended and held in this position. can do.

  Then, by raising the moving floor plate at a predetermined timing, the lower end of the shaft portion is pushed toward the downstream side, the part extends from the standing posture state along the lower end edge portion, and the shaft portion is a chute rail. It is possible to change the posture to the inclined posture state located on the downstream side of the rail and slide the pair of rail members from the upstream side to the downstream side of the chute rail.

  Therefore, it is possible to change the posture of the parts to the inclined posture state with a simple configuration and supply the parts one by one at a predetermined timing. Therefore, it is possible to obtain a high degree of silence without using vibration as in the prior art and without generating noise due to vibration. Further, there is no deterioration or wear of the vibration isolator, and no displacement of the apparatus, and it can withstand long-term use. Further, since it has a simple configuration, it can be manufactured at low cost, and the price can be reduced.

  According to the invention of claim 2, the chute rail can be partitioned into the upstream portion side and the downstream portion side by interposing a stopper between the pair of inclined surfaces of the chute rail facing each other as the moving floor plate descends. Therefore, when the moving floor board is descending, it is possible to prevent the parts held in the standing posture state on the chute rail from being erroneously slid and supplied to the downstream side.

  According to the invention of claim 3, the magnet can be moved upward from below the opening in accordance with the rotation of the rotating plate, and the parts stored in the storage means are adsorbed to move upward from the top of the storage means. Can be taken out.

  When a plurality of parts are attracted by the magnet and taken out upward from the storage means, only one part can be passed by the take-out number restricting portion. Therefore, the number of parts attracted by one magnet can be limited to one, and the parts can be taken out one by one from the storage means according to the rotation of the rotating plate.

  Then, the parts receiving part of the supply means comes into contact with the part that has been attracted by the magnet and moved from the upper part to the lower part of the lower side rotational movement area by the rotation of the rotating plate, and the parts are separated from the magnet, By being inclined, it can be slid from the upstream portion toward the downstream portion and supplied to the chute rail.

  The invention of claim 4 shows an example of a specific configuration of the parts receiving portion. According to this, the parts receiving portion of the supply means is attracted to the magnet and rotated downward by the rotation of the rotating plate. One upper edge is brought into contact with the part moving from the upper part to the lower part of the moving area, the part is detached from the magnet, and the part is moved down along the inclined surface to the V-shaped bottom part. Can be changed to one of the posture states that are located upstream of the shaft portion or downstream of the shaft portion, and are slid to the downstream side of the parts receiving portion in this posture state, and the chute It can be supplied to the upstream part of the rail.

  According to the fifth aspect of the present invention, the drive pin moving from the upper part to the lower part of the lower side rotational movement region pushes the base end portion of the swing lever downward and moves the tip end portion by swinging upward. The floorboard can be raised.

  Then, for example, when the drive pin moves out of the descending side rotational movement region and the downward pushing of the base end portion is released, the movable floor plate can be lowered by swinging the tip end portion downward. . Therefore, the moving floor board can be raised and lowered at preset intervals, and the parts can be supplied to the downstream side at a predetermined timing.

  Next, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view for explaining the configuration of the parts feeder 1 in the present embodiment, FIG. 2 is a diagram showing a main part of the parts feeder 1 by a cross section, and FIG. FIG. 2B is a cross-sectional view taken along the line BB in FIG. 1, FIG. 2C is a cross-sectional view in the direction C of FIG. 1, and FIG. 2D is a direction D in FIG. It is an arrow view. 3 to 5 are diagrams for explaining the movement of the part P by enlarging the main part of the parts feeder 1, FIG. 6 is a sectional view taken along the line EE of FIG. 3, and FIG. It is the FF sectional view taken on the line.

  The parts feeder 1 can store a plurality of parts P made of a magnetic material having a shaft portion Pa and a head portion Pb whose diameter is enlarged at the base end portion of the shaft portion Pa, such as a hexagon socket head bolt. The storage means 10, the pickup means 20 for taking out the parts P stored in the storage means 10 one by one, the parts P taken out by the pickup means 20 are received, the posture is changed to a predetermined posture state, and at a predetermined timing Supply means 30 for supplying the assembly machine 100 one by one is provided. 1, the storage means 10, the pickup means 20, and the supply means 30 are provided on the upper surface of the base 2 in this order from the left side to the right side in FIG.

  The storage means 10 has a hopper 11. The hopper 11 is arranged at a height position set in advance by a support stay 3 erected on the upper surface of the base 2. The hopper 11 has a rectangular box shape with an open top, and its bottom surface 12 is formed in a slope shape so that it gradually moves downward as it moves to the pickup means 20 side (right side in FIG. 1). ing.

  A vertical wall portion 13 on the back side of the hopper 11 (vertical wall portion positioned on the back side in FIG. 1) has an opening 14 having a size that allows the part P to pass through and opening from the bottom surface 12 to the upper portion. Is formed and is closed by the rotating plate 22 of the pickup means 20.

  The pickup means 20 has a rotation motor (rotation drive unit) 21 and a rotation plate 22. The rotary motor 21 is provided on an upper portion of the support base 4 erected on the upper surface of the base 2, and is fixed so that the rotary shaft 21 a is horizontal and protrudes toward the front side.

  The rotary plate 22 has a disk shape having a predetermined plate thickness, and a central shaft portion thereof is directly connected to the rotary shaft 21a of the rotary motor 21 so as to be rotated coaxially. Then, as shown in FIG. 1, the opening 14 of the hopper 11 is closed at the radially outer portion of the flat portion 22 a located on the front side of the rotating plate 22, and the rotation speed set in advance by the rotation drive of the rotation motor 21. And is formed so as to move upward from below the opening 14 by being rotated in the direction of the arrow shown in the figure.

  A magnet 23 is provided on the flat surface portion 22 a of the rotating plate 22. The magnet 23 has a size and a magnetic force that can attract only one part P and can be taken out from the hopper 11, and as shown in FIG. 2A, the flat portion 22a is a radially outer portion of the flat portion 22a. It is embedded and attached so as to be flush with. In the present embodiment, as shown in FIG. 1, the magnets 23 are provided with a total of four magnets 23, and are arranged at an angular interval of 90 ° on the plane portion 22a.

  In the figure, reference numeral 24 denotes an extraction number restriction plate as an extraction number restriction portion for limiting the number of parts P taken out from the hopper 11 by one magnet 23 to one. The removal number regulating plate 24 has a base end portion 24 a fixed to the vertical wall portion 15 of the hopper 11, and an intermediate portion 24 b that is bent at the upper end of the base end portion 24 a so as to follow the rotation direction of the rotary plate 22. The distal end portion 24 c is bent at the upper end of the intermediate portion 24 b so as to extend outward in the radial direction of the rotating plate 22.

  The intermediate portion 24b and the tip portion 24c of the take-out number regulating plate 24 extend with a predetermined width in a direction orthogonal to the flat surface portion 22a of the rotating plate 22, and the intermediate portion 24b is slightly between the flat surface portion 22a. As shown in FIG. 2A, the tip 24c has a gap slightly larger than the diameter of the head of the part P between the flat part 22a and the magnet 23. The size is set so that only one sucked part P can pass.

  Therefore, when a plurality of parts P are attracted to one magnet 23 moving from the lower part to the upper part of the opening 14 by the rotation of the rotating plate 22 and taken out from the hopper 11, the plurality of parts P The number of parts P taken out by one magnet 23 is brought into contact with the leading end 24c of the take-out number regulating plate 24 and the parts P other than one are detached from the magnet 23 and dropped downward, returned to the hopper 11 again. Can be limited to one.

  Reference numeral 25 in the drawing denotes a drive pin for driving the supply means 30. The drive pin 25 protrudes at a position spaced apart from the rotation center of the rotating plate 22 by a predetermined distance in the radial direction on the flat surface portion 22a of the rotating plate 22. In the present embodiment, the projection is provided on the front side at an angular position that is closer to the rotational center than the radially outer portion and spaced apart from each magnet 23 by a predetermined angle on the rear side in the rotational direction.

  The supply means 30 includes a first chute rail (part receiving part) 31, a second chute rail (chute rail) 41, and a moving part 51.

  The first chute rail 31 is for receiving the parts P taken out from the storage means 10 by the pick-up means 20 from the pick-up means 20, transferring them from the upstream side toward the downstream side, and delivering them to the second chute rail 41. 2B, it has a pair of inclined surfaces 34 gradually approaching from the upper edge 35 to the lower edge 36, and is joined together at the lower edge 36 to form a bottom 37. The cross section is constituted by a long plate member having a V shape, and is mounted and supported on the upper portion of the base 2 by a support bracket (not shown).

  Then, the flat portion 22a of the rotating plate 22 moves downward from the upper side (the right side portion of the rotating plate 22 in FIG. 1) and is radially outward from a position slightly above the rotation center of the rotating plate 22. It is supported in a slanted manner so as to gradually move downward as it moves downstream.

  The upstream portion 32 of the first chute rail is disposed so as to cross the radially outer portion of the planar portion 22a along the planar portion 22a of the rotating plate 22 from the radially inner side to the radially outer side. When the rotating plate 22 is moved by the rotation of the rotating plate 22 from the upper part to the lower part while being attracted to the magnet 23, the part P is brought into contact with one upper edge end part 35 to be detached from the magnet 23. , And can be moved down to the V-shaped bottom 37 along the inclined surface 34.

  Then, the part P that has moved to the bottom 37 extends in the same direction as the longitudinal direction of the first chute rail 31, and the head Pb is positioned upstream of the shaft portion Pa or downstream of the shaft portion Pa. The posture is changed to one of the posture states (see FIG. 3 and FIG. 4), and can be smoothly transferred by sliding on the bottom portion 37 from the upstream portion 32 to the downstream portion 33 of the first chute rail 31 by its own weight. It is set to an angle.

  As shown in FIG. 1, the second chute rail 41 is continuously provided on the upstream portion 42 so that the downstream portion 33 of the first chute rail 31 overlaps, and is substantially the same as the first chute rail 31. It has an inclination angle and is inclined so as to gradually move obliquely downward from the upstream side toward the downstream side, and is attached and supported on the upper portion of the base 2 by a support bracket (not shown).

  Then, two rail members 48 having a long flat plate shape are arranged in parallel so as to be spaced apart from each other in the lateral direction, and the cross section forms an inverted octagonal shape. FIG. ), (D), a pair of inclined surfaces 44 gradually approaching from the upper edge 45 to the lower edge 46 are formed on the surfaces facing each other, and the upstream portion 42 between the lower edges 46. An opening groove 47 extending from the downstream portion 43 with a constant width is formed.

  The opening groove 47 has a lateral width that is larger than the diameter of the shaft portion Pa of the part P and smaller than the diameter of the head portion Pb. In addition, the inclination angle of the both inclined surfaces 44 is such that the head Pb of the part P is sandwiched between both inclined surfaces 44 when the part P is inserted between the upper inclined surfaces 44 of the second chute rail 41. The shaft portion Pa is suspended in an upright posture extending through the opening groove 47 and extending in the vertical direction, and the head Pb can be held at such a position by a wedge action sandwiched between both inclined surfaces 44. It is set to an angle.

  The moving unit 51 changes the posture of the part P held on the second chute rail 41 from the standing posture state to the inclined posture state, releases the holding of the part P on the second chute rail 41, and in the inclined posture state. Is slid on the second chute rail 41 and transferred to the downstream side, and is supplied to the assembling machine 100 located below the downstream portion 43. As shown in FIG. The moving floor plate 52 that extends obliquely downward along the second chute rail 41 at the lower position and the lower side edge 46 of the second chute rail 41 is moved closer to and away from the moving floor plate 52 by moving the moving floor plate 52 in the vertical direction. And a swing lever 55.

  As shown in FIG. 1, the movable floor plate 52 is formed continuously with the tip 56 of the swing lever 55, and as shown in FIG. 2C, the lower edge of the second chute rail 41 is lifted. As shown in FIG. 2 (d), both the opening groove 47 and the lower opening edge 47 are separated from each other by lowering to open the opening groove 47 as shown in FIG. It has a flat plate shape having a width extending between the lower end edge portions 46 and 46 and a length extending from the upstream portion 42 to the downstream portion 43 of the second chute rail 41.

  The swing lever 55 moves the moving floor plate 52 formed continuously from the tip 56 to the lower edge 46, 46 of the second chute rail 41 by a hinge pin 53 provided at a position below the first chute rail 31. And it is supported so as to be swung in the direction of separation. The hinge pin 53 is provided at the upper end portion of the support stay 5 erected between the rotating plate 22 and the second chute rail 41, and the shaft center is horizontal and rotates slightly above the second chute rail 41. The swing lever 55 is arranged so as to extend in a direction orthogonal to the flat surface portion 22a of the plate 22 so that a balance is always established such that the distal end portion 56 side is positioned at the lower end and the base end portion 57 side is positioned at the upper end. Support.

  The base end portion 57 of the swing lever 55 extends toward the upstream side of the first chute rail 31 from a portion supported by the hinge pin 53 at a position below the first chute rail 31, and is inclined at a position near the rotating plate 22. It is bent downward and is formed along the flat surface portion 22 a of the rotating plate 22.

  The base end portion 57 of the swing lever 55 is a downward rotation movement region (the right side portion of the rotation plate 22 in FIG. 1) in which the flat portion 22a of the rotation plate 22 moves from the upper part to the lower part. It extends obliquely downward from substantially the same height as the center, crosses the radially outer portion of the flat portion 22a from the radially outer side to the radially inner side, and is positioned on the track of the drive pin 25.

  Then, the rotation of the rotating plate 22 causes the magnet 23 to pass through the upper end portion 32 of the first chute rail 31, and after the part P is suspended and held in the middle position of the second chute rail 41, the drive pin 25 is Abutting on the base end portion 57, pushing the base end portion 57 downward, the swing lever 55 swings counterclockwise in FIG. 1 about the hinge pin 53 as the center of rotation, and the tip end portion 56 moves upward. The moving floor plate 52 is raised and brought into contact with the lower edge portions 46 and 46 of the second chute rail 41 to close the opening groove 47.

  Further, when the part P is suspended and held on the second chute rail 41 in an upright posture, the shaft of the part P that passes through the opening groove 47 and protrudes downward from the lower edge portions 46 and 46 is provided. The part Pa is pushed toward the downstream side of the second chute rail 41 by the rising of the movable floor plate 52 to change the posture of the part P from the standing posture state to the inclined posture state, and the second chute rail 41 of the part P Is held, and is slid along the moving floor plate 52 with the shaft portion Pa on the front side in the traveling direction, and transferred to the downstream side.

  Further, as shown in FIG. 1, a stopper 61 is provided at an intermediate position in the longitudinal direction of the moving floor board 52. As shown in FIG. 2C, the stopper 61 has a proximal end fixed to the lower surface of the moving floor 52, protrudes from the moving floor 52 in the lateral width direction, and is bent at a position lateral to the second chute rail 41. And extends upward, is bent at a position above the upper end edge 45 of the second chute rail 41 and extends toward the top of the second chute rail 41, and the lateral width of the second chute rail 41 It has a shape that is bent at the center in the direction and extends downward.

  When the moving floor plate 52 is raised, it is located above the upper end edge 45 of the second chute rail 41 and opens between the two inclined surfaces 44, and when lowered, the two inclined surfaces 44, 44 of the second chute rail 41 are opened. The second chute rail 41 is interposed between the upper edge 45 and the lower edge 46 so as to partition the upstream portion and the downstream portion to prevent the parts P from sliding and sliding down further downstream than the stopper 61. .

  As shown in FIG. 1, the assembling machine 100 is provided on the downstream side of the second chute rail 41. The assembling machine 100 has a funnel shape in which the upper end opens at a position below the downstream portion 43 of the second chute rail 41 and gradually narrows as it moves downward, and the parts supplied from the second chute rail 41 A part positioning unit 101 that takes P from the upper end and positions and supports it in a standing posture at the lower end, a workpiece holding unit 102 that holds the workpiece W at a position below the part positioning unit 101, and a position above the part positioning unit 101. A parts attaching means 103 for attaching the part P to the workpiece W is provided.

  The parts mounting means 103 includes a slide table unit 111 that moves in the vertical direction, a rotary drive unit 112 that is mounted on the slide table unit 111 so that the center of rotation extends in the vertical direction, and is driven to rotate with a predetermined torque. It has a socket part 113 that is provided on the rotating shaft of the drive part 112 and engages with the head part Pb of the part P and can rotate the part P. Then, the slide table unit 111 is lowered, the socket unit 113 is engaged with the part P, and the socket unit 113 is rotated by driving the rotation driving unit 112 so that the part P is attached (screwed) to the workpiece W. It is configured.

  Next, operation | movement of the parts feeder 1 which has the said structure is demonstrated below.

  First, a plurality of parts P are stored in the hopper 11 of the storage means 10, and the rotating plate 22 is rotated in a direction indicated by an arrow in FIG.

  As a result, the magnet 23 can be moved upward from below the opening 14 of the hopper 11, and the part P stored in the hopper 11 can be attracted to the magnet 23 and taken out from the hopper 11. In addition, when a plurality of parts P are attracted to one magnet 23, only one part P can be taken out by the take-out number regulating plate 24, and the remaining parts P are detached from the magnet 23 to be hopper. 11 can be restored.

  One part P taken out from the hopper 11 by the magnet 23 moves together with the rotating plate 22, approaches the upper edge 35 from above the first chute rail 31, contacts the upper edge 35, and the inclined surface 34. Is removed from the magnet 23. And it falls down along the inclined surface 34, and moves on the bottom part 37 of the 1st chute rail 31 (refer FIG.2 (b)).

  The part P that has moved to the bottom 37 extends in the same direction as the longitudinal direction of the first chute rail 31, and the head Pb is located either upstream from the shaft portion Pa or downstream from the shaft portion Pa. The posture is changed to one of the posture states, slides on the bottom portion 37 by its own weight, and is transferred from the upstream side of the first chute rail 31 toward the downstream side.

  When the part P moves to the downstream portion 33 of the first chute rail 31, the part P is supplied to the upstream portion 42 of the second chute rail 41 as it is. Here, as shown in FIG. 3, when the head portion Pb is supplied to the second chute rail 41 in a posture state in which the head portion Pb is positioned upstream of the shaft portion Pa, the shaft portion Pa of the part P is inserted into the opening groove 47. After that, the head Pb is sandwiched between the inclined surfaces 44 and suspended in the standing posture state (see FIG. 6), and held in the middle position of the second chute rail 41 in the standing posture state.

  On the other hand, as shown in FIG. 4, when the head Pb is supplied to the second chute rail 41 in a posture state where the head Pb is positioned downstream of the shaft portion Pa, the head Pb is sandwiched between the inclined surfaces 44. Rotating about the head Pb, the shaft portion Pa is inserted into the opening groove 47 and suspended in a standing posture state (see FIG. 6), and held in the middle position of the second chute rail 41 in such a posture state. .

  When the part P is supplied from the first chute rail 31 to the second chute rail 41 and is held in a standing posture at an intermediate position, the drive pin 25 is arranged on the track according to the rotation of the rotating plate 22. The base end portion 57 of the swing lever 55 is brought into contact with the base end portion 57, and the base end portion 57 is gradually pushed downward to swing the base end portion 57 from the rising end to the lowering end.

  When the base end portion 57 of the swing lever 55 swings from the rising end to the lowering end, the distal end portion 56 of the swing lever 55 is swung from the lowering end to the rising end, and the movable floor plate 52 is lifted from the lowering position. Let

  As the moving floor plate 52 rises, the moving floor plate 52 can be inclined and brought into contact with the lower end of the shaft portion Pa protruding below the lower end edge portions 46 and 46 of the second chute rail 41 of the part P. The part Pa can be pushed toward the downstream side of the second chute rail 41 to change the posture of the part P from the standing posture state to the inclined posture state.

  Due to such a posture change, the part P in the inclined posture state is released from being held on the second chute rail 41, and slides on the moving floor plate 52 with the shaft portion Pa on the front side in the traveling direction toward the downstream side. It is transported and discharged downward from the downstream portion 43 of the second chute rail 41.

  Then, it is supplied to the assembling machine 100 as it is, and is supported on the workpiece W in a standing posture by the parts positioning means 101 of the assembling machine 100. Then, it is attached to the workpiece W by the parts attaching means 103 at a predetermined timing. The supply of the parts P to the assembling machine 100 is performed for each magnet 23 provided on the rotating plate 22 and is performed at predetermined intervals according to the rotation speed of the rotating plate 22.

  According to the parts feeder 1 having the above configuration, the parts P stored in the storage unit 10 can be taken out one by one and can be delivered to the first chute rail 31. Then, the posture of the part P is changed to one of the posture states in which the head Pb is located upstream of the shaft portion Pa or downstream of the shaft portion Pa on the first chute rail 31, and is slid by its own weight. The second chute rail 41 can be supplied.

  In the second chute rail 41, the head Pb is sandwiched between the pair of inclined surfaces 44 and the shaft portion Pa is inserted into the opening groove 47 and hangs down, and the lower end of the shaft portion Pa is lower than the lower end edge portion 46. It is possible to change the posture to a standing posture projecting downward and hang it, and hold it in this position.

  Next, the drive pin 25 abuts on the base end portion 57 of the swing lever 55 and pushes downward to raise the movable floor plate 52 and push the lower end of the shaft portion Pa of the part P toward the downstream side. Then, the posture is changed from the standing posture state to an inclined posture state that extends along the lower edge 46 and the shaft portion Pb is located on the downstream portion 43 side of the second chute rail 41, and between the pair of rail members 48. The second chute rail 41 can be slid and transferred from the upstream portion 42 toward the downstream portion 43.

  Therefore, it is possible to change the posture of the parts P to a preset inclined posture state with a simple configuration without using vibration as in the prior art, and supply them one by one at a predetermined timing.

  Therefore, there is no generation of noise due to vibration, and high silence can be obtained. Therefore, it is not necessary to provide an anti-vibration device, and no deterioration, wear, or misalignment due to vibration occurs, and it can withstand long-term use. Moreover, it can be manufactured inexpensively with a simple structure, and the price can be reduced.

  In addition, when the movable floor 52 is raised, the stopper 61 is provided so as to move above the upper edge 45 of the second chute rail 41 to open the space between the two inclined surfaces 44. The second chute rail 41 is divided into an upstream portion and a downstream portion by moving between the surfaces 44, 44 and interposed from the upper edge 45 to the lower edge 46, and the part P slides and stops. Since sliding down to the downstream side of 61 is prevented, the timing for supplying the parts P to the subsequent assembly machine 100 can be made more accurate.

  Further, since the swing lever 55 is swung by the drive pin 25 provided on the rotating plate 22, there is no need to separately provide an actuator for raising and lowering the moving floor plate 52, and only the rotating motor 21 of the rotating plate 22 is used. The part P can be taken out and supplied one by one at a predetermined timing.

  In addition, this invention is not limited to the above-mentioned embodiment, A various change is possible in the range which does not deviate from the meaning of this invention. For example, in the above-described embodiment, the bolt is given as an example of the part P. However, any bolt may be used as long as it has the shaft portion Pa and the head portion Pb whose diameter is enlarged at the base end portion. An adjustment screw in which a groove capable of engaging a flat-blade screwdriver is formed on the surface and a contact portion that contacts an intake / exhaust valve of the engine is formed on the base end surface of the head.

It is a front view explaining the structure of the parts feeder in this Embodiment. FIG. 2A is a cross-sectional view of the main part of the parts feeder, FIG. 2A is a cross-sectional view taken along the line AA in FIG. 1, FIG. 2B is a cross-sectional view taken along the line BB in FIG. (C) is a C direction arrow view of FIG. 1, FIG.2 (d) is a D direction arrow view of FIG. It is a figure explaining the movement of the parts in a parts feeder. It is a figure explaining the movement of the parts in a parts feeder. It is a figure explaining the movement of the parts in a parts feeder. It is the EE sectional view taken on the line of FIG. It is the FF sectional view taken on the line of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Parts feeder 10 Storage means 11 Hopper 12 Bottom face 13 Vertical wall part 14 Opening part 20 Pickup means 21 Rotation motor (rotation drive part)
22 Rotating plate 22a Flat part 23 Magnet 24 Extraction number restriction plate (extraction number restriction part)
25 Drive pin 30 supply means 31 1st chute rail (part receiving part)
34 Inclined surface 37 Bottom 41 Second chute rail (chute rail)
44 Inclined surface 45 Upper end edge 46 Lower end edge 47 Opening groove 48 Rail member 51 Moving part 52 Moving floor plate 55 Swing lever 56 Tip part 57 Base end part 61 Stopper P Parts Pa Shaft part Pb Head

Claims (5)

In a parts feeder for transferring parts having a shaft portion and a head having a diameter larger than that of the shaft portion,
A supply means for supplying the parts stored in the storage means one by one at a predetermined timing by changing the posture to a predetermined posture state;
The supply means includes
It has a pair of rail members arranged in parallel and spaced apart from each other and extending diagonally downward from the upstream portion toward the downstream portion, and from below to above on the mutually opposing surfaces of the pair of rail members A pair of inclined surfaces that are gradually separated from each other in the lateral direction as the transition is formed, and have a lateral width that is wider than the shaft portion of the part and narrower than the head between the lower end edges of the pair of inclined surfaces. A chute rail in which an opening groove extending from the upstream portion to the downstream portion is formed;
The head extends the part that extends along the lower edge at the lower position of the chute rail and is spaced downward from the lower edge by lowering and is supplied between the pair of rail members. And the shaft portion is inserted into the opening groove and hangs down, and the lower end of the shaft portion is suspended and held in a standing posture in which the lower end protrudes below the lower edge. On the other hand, the opening groove is closed by ascending, the lower end of the shaft portion is pushed downstream from the head, and the part extends from the standing posture state along the lower end edge. And a moving floor plate that changes its posture to a tilted posture state in which the shaft portion is located on the downstream side and slides and moves between the pair of rail members from the upstream side to the downstream side of the chute rail. A characteristic parts feeder. The supply means includes
Provided integrally with the moving floor plate, and is interposed between a pair of inclined surfaces of the chute rail when the moving floor plate is lowered, partitioning the chute rail into an upstream portion side and a downstream portion side, The parts feeder according to claim 1, further comprising a stopper that prevents the parts held in the standing posture from sliding to the downstream side. A storage means for storing a plurality of the parts made of a magnetic material, and a pickup means for taking out the parts one by one from the storage means and delivering them to the supply means;
The storage means has a box shape with an open top and has a vertical wall portion with an opening formed from the bottom to the top,
The pick-up means has a disc shape extending along the vertical wall portion, and a rotating plate supported so as to be rotatable around a central axis by closing the opening portion with a radially outer portion of a flat portion. A magnet provided on the radially outer portion of the flat portion of the rotating plate and capable of attracting the parts; and the radially outer portion of the rotating plate at a predetermined rotational speed from above to below the opening. Forming a gap that allows one part to pass between the rotation drive unit that rotates in the direction of movement toward the plane unit and the plane unit of the rotary plate at a position above the storage unit; When multiple parts are attracted to one magnet and taken out from the storage means, the number of parts that are attracted to one magnet by abutting against other parts and separating from the magnet Extraction limited to one Has a number restricting portion,
The supply means is provided with an upstream portion along a radially outer portion of the plane portion in a descending rotational movement region in which the plane portion of the rotation plate rotates and moves from the upper portion to the lower portion, and from the upstream portion, the diameter of the rotation plate is provided. It protrudes outward in the direction, gradually inclines downward as it moves away from the rotating plate, extends in a straight line, and extends in a straight line, and a downstream portion is continuously provided on the chute rail and is attracted to the magnet. The rotating plate is brought into contact with a part that has moved from the upper part to the lower part of the lower-side rotational movement region so that the part is detached from the magnet and is slid from the upstream part toward the downstream part. The parts feeder according to claim 1, further comprising a parts receiving section that supplies the chute rail. The supply means includes
The parts receiving portion has a pair of inclined surfaces gradually approaching from the upper end edge toward the lower end edge, and is a long plate having a V-shaped cross section that is coupled to each other at the lower end edge to form a bottom portion The parts feeder according to claim 3, comprising a member. The supply means includes
A drive pin projecting at a position spaced apart from the rotation center of the rotating plate by a predetermined distance in the radial direction on a plane portion of the rotating plate;
It extends along the lower edge of the chute rail at a position below the chute rail, a base end portion is disposed in the descending rotational movement region and on the track of the drive pin, and the base end by the drive pin The tip of the base is swung upward by pushing down the portion to raise the movable floor plate, while the tip is lowered by releasing the push down of the base end by the drive pin. A swing lever that swings toward the lower side to lower the movable floor plate,
The parts feeder according to claim 3 or 4, characterized by comprising:

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