JP2016078204A - Conveyance device of fastening member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a conveyance device of a fastening member capable of inserting the fastening member stably into an insertion port of a conveyance path.SOLUTION: A conveyance device 10 includes an adsorption cylinder 16 and a correction plate 18. The adsorption cylinder 16 adsorbs a fine screw 22 having a trunk 24 and a head 26, and conveys the fine screw 22 to a position facing to an insertion port 34 of a conveyance path 32 formed so as to have a T-shaped cross section corresponding to the fine screw 22. The correction plate 18 receives the fine screw 22 adsorbed by the adsorption cylinder 16, corrects the attitude of the fine screw 22, and supplies the fine screw 22 into the insertion port 34.SELECTED DRAWING: Figure 1

Description

  The technology disclosed in the present application relates to a fastener conveying apparatus.

  For example, a conveying device is used to automatically convey a fastening part having a body and a head such as a screw. Some of these types of transport devices have a transport tube formed in a T-shaped cross section corresponding to a fastening part, and transport the fastening part using this transport tube.

JP 2013-240868 A JP 2002-79346 A JP 2004-203605 A

  In the transport device, for example, when the fastening part is gripped, the fastening part may change its posture, for example, the fastening part is inclined. In this case, when the fastening component is supplied to the insertion port of the transport tube, the peripheral portion of the insertion port of the transport tube interferes with the fastening component, and the fastening component may not be inserted into the insertion port.

  An object of the technology disclosed by the present application is, as one aspect, to provide a fastening component transport device that can stably insert a fastening component into an insertion port of a transport path.

  In order to achieve the above-described object, a fastening component transport apparatus according to a technique disclosed in the present application includes a gripping unit and a correction unit. The gripping part grips a fastening part having a body part and a head part, and transports the fastening part to a position facing an insertion port of a transport path formed in a T-shaped cross section corresponding to the fastening part. The correction unit receives the fastening part gripped by the gripping part, corrects the posture of the fastening part, and supplies the fastening part to the insertion port of the conveyance path.

  According to the technique disclosed in the present application, the fastening component can be stably inserted into the insertion port of the conveyance path.

It is a principal part expansion perspective view of a conveying apparatus. It is a front view of a micro screw. It is a principal part enlarged front view of a suction cylinder. It is a perspective view of a correction plate. It is a principal part expansion perspective view of a correction board. It is a perspective view which shows the relationship between the cross-sectional shape obtained by extending an insertion port, and a micro screw. It is a front view which shows the relationship between the cross-sectional shape obtained by extending an insertion port, and a micro screw. It is a block diagram which shows the electrical component of a conveying apparatus. It is a flowchart which shows the flow of operation | movement of a control unit. It is the 1st explanatory view explaining operation of a conveyance device. It is the 2nd explanatory view explaining operation of a conveyance device. It is a figure which shows the state by which the microscrew was adsorbed by the adsorption cylinder. It is a figure explaining a mode that the attitude | position of a micro screw is correct | amended by the correction board. It is a figure which shows the state which the correction plate approached the insertion port of the conveyance tube. It is a figure which shows the modification of an adsorption | suction part. It is a figure which shows an automatic screwing machine.

  Hereinafter, an embodiment of the technology disclosed in the present application will be described.

  1 is an example of a “fastening component transport device”, and includes a parts feeder 12, a transport tube 14, an adsorption cylinder 16, a correction plate 18, and an air cylinder 20. Prepare.

  The parts feeder 12 is an example of a “supply unit”. The parts feeder 12 conveys a micro screw 22 that is an example of a “fastening part”. The micro screw 22 is made of metal, for example, and has a body 24 and a head 26 as shown in FIG. As an example, the micro screw 22 to be transported by the transport device 10 of the present embodiment has an axial length L of the micro screw 22 that is substantially the same as the diameter D of the head 26.

  As shown in FIG. 1, the parts feeder 12 has a transport table 28. A linear groove 30 is formed in the transport table 28. The body portion 24 of each micro screw 22 is inserted into the groove 30, and the head portion 26 of each micro screw 22 is placed on the peripheral portion of the groove 30 in the transport table 28. The plurality of micro screws 22 are aligned along the groove 30 by being held in the groove 30. In the parts feeder 12, the transport table 28 is vibrated, so that the plurality of micro screws 22 are transported to the front end side of the transport table 28 in an aligned state. The first micro screw 22 among the plurality of micro screws 22 is supplied to the suction cylinder 16 described later.

  The conveyance tube 14 is an example of a “conveyance unit”. A space inside the transfer tube 14 is formed as a transfer path 32. The conveyance path 32 is formed in a T-shaped cross section corresponding to the micro screw 22. That is, the conveyance path 32 is similar to the micro screw 22 and is formed in a shape slightly larger than the outer shape of the micro screw 22, and the horizontally long upper hole 32 </ b> A into which the head 26 of the micro screw 22 is inserted and the micro screw 22. And a vertically long pilot hole 32B into which the body portion 24 is inserted.

  The transport path 32 is formed with a constant cross-sectional shape over the entire length of the transport tube 14. An opening on the suction cylinder 16 side (correction plate 18 side) in the transport path 32 is an insertion port 34, and an end surface 36 of the transport tube 14 in which the insertion port 34 opens is located above the tip of the transport table 28. .

  The suction cylinder 16 is an example of a “gripping part”. The suction cylinder 16 is arranged with the vertical direction as the axial direction. The suction cylinder 16 has a movable portion 38 that expands and contracts in the vertical direction (the axial extension direction of the first micro screw 22). At the lower end portion of the movable portion 38, an adsorption portion 40 that adsorbs the head portion 26 of the micro screw 22 by vacuum suction is provided.

  The suction unit 40 moves up and down between an ascending position that rises to the position of the end surface 36 of the transport tube 14 and a descending position that is lower than the ascending position, as the movable portion 38 of the suction cylinder 16 extends and contracts. In a state where the suction part 40 is positioned at the lowered position, the suction part 40 reaches the head 26 of the first micro screw 22 and the head 26 is sucked by the suction part 40 (see the middle diagram of FIG. 10). On the other hand, in a state where the suction portion 40 is located at the raised position, the micro screw 22 sucked by the suction portion 40 is located at substantially the same height as the insertion port 34 and faces the insertion port 34 (see the lower diagram of FIG. 10). ).

  As shown in FIG. 3, the suction portion 40 is formed in a cylindrical shape and protrudes downward from the lower end portion of the suction cylinder 16. The suction portion 40 is formed of an elastic body such as rubber. If this elastic body is formed of a material having a relatively high rubber hardness, it is preferable because the micro screw 22 adsorbed by the adsorbing portion 40 can be easily released at the time of vacuum break.

  The correction plate 18 shown in FIGS. 1, 4, and 5 is an example of a “correction unit”. As shown in FIG. 1, the correction plate 18 is arranged with the vertical direction as the plate thickness direction, and is formed in a substantially T shape in a top view. Further, the correction plate 18 is disposed at substantially the same height as the insertion port 34 of the transport tube 14. The correction plate 18 includes a main body portion 42 and a stacking portion 44.

  The main body 42 is formed in a rectangular shape in plan view. A wall-shaped fixing portion 48 having a U-shaped groove 46 is erected on the upper surface of the main body portion 42. The movable portion 50 of the air cylinder 20 is inserted into the groove 46, and the movable portion 50 of the air cylinder 20 is fixed to the fixed portion 48.

  The air cylinder 20 is arranged with the horizontal direction as the axial direction, and more specifically, with the alignment direction of the plurality of micro screws 22 in the parts feeder 12 as the axial direction. The movable portion 50 of the air cylinder 20 expands and contracts in the alignment direction of the plurality of micro screws 22. A pair of guide pins 52 are provided on both sides of the main body 42 of the correction plate 18. The pair of guide pins 52 are guided by guide portions (not shown) extending in the alignment direction of the plurality of micro screws 22.

  The correction plate 18 contacts and separates from the insertion port 34 along the alignment direction of the plurality of micro screws 22 (in other words, the opening direction of the insertion port 34) in accordance with the expansion and contraction operation of the movable portion 50 of the air cylinder 20. . In a state where the correction plate 18 is located at the retracted position opposite to the insertion port 34 (the state shown in FIG. 1), the movable portion 38 of the suction cylinder 16 can pass between the transport tube 14 and the correction plate 18. Space is reserved.

  The loading unit 44 is located on the side of the transport tube 14 with respect to the main body unit 42. In a state in which the correction plate 18 is positioned at an approaching position approaching the insertion port 34, the distal end portion of the correction plate 18 contacts the end surface 36 of the transport tube 14, and the stacking portion 44 faces the insertion port 34 (see FIG. 11 middle figure). The stacking portion 44 is loaded with the micro screw 22 adsorbed by the adsorbing portion 40 (see FIG. 13). More specifically, the stacking portion 44 includes a placement surface 54, a convex portion 56, and an accommodation groove 58, as shown in FIG.

  The mounting surface 54 is formed by the upper surface of the tip of the correction plate 18 and has a semicircular arc shape when viewed from above. The head 26 of the micro screw 22 is placed on the placement surface 54. The convex portion 56 is formed in a semicircular arc shape along the placement surface 54 and protrudes upward from the placement surface 54. The convex portion 56 is arranged along the peripheral surface of the head portion 26 of the micro screw 22 in a state where the micro screw 22 is mounted on the mounting surface 54. The mounting surface 54 and the convex portion 56 formed in a semicircular arc shape are curved to the opposite side to the tip side (insertion port 34 side) of the correction plate 18.

  The accommodation groove 58 is formed in the center of the placement surface 54 and penetrates in the thickness direction of the correction plate 18. The accommodating groove 58 accommodates the body portion 24 of the micro screw 22 in a state where the head portion 26 of the micro screw 22 is mounted on the mounting surface 54. In the loading portion 44, the head portion 26 of the micro screw 22 is placed on the mounting surface 54, the body portion 24 of the micro screw 22 is accommodated, and the convex portion 56 is formed along the peripheral surface of the head portion 26. By being arranged, the posture of the micro screw 22 is corrected. That is, in the stacking unit 44, more specifically, the posture of the micro screw 22 is corrected so that the micro screw 22 is accommodated in a cross-sectional shape 60 (see FIG. 6) obtained by extending the insertion port 34.

  As shown in FIG. 6, the cross-sectional shape 60 is a region obtained by extending (translating) the insertion port 34 along the opening direction of the insertion port 34. As shown in FIG. 7, the micro screw 22 whose posture is corrected is positioned inside the insertion port 34 (cross-sectional shape 60) when viewed along the opening direction of the insertion port 34. The correction of the posture of the micro screw 22 in the stacking unit 44 includes correction of the positional deviation and the inclination of the micro screw 22.

  Further, as illustrated in FIG. 5, the stacking portion 44 of the correction plate 18 includes a pair of guide surfaces 62 and a guide groove 64. The pair of guide surfaces 62 are continuous with the placement surface 54 and extend from the placement surface 54 toward the insertion port 34. The mounting surface 54 and the pair of guide surfaces 62 extend in the horizontal direction and are positioned at substantially the same height as the lower edge 32A1 of the upper hole 32A of the insertion port 34. The guide groove 64 is located at substantially the same height as the lower hole 32 </ b> B and communicates with the accommodation groove 58. The guide groove 64 is penetrated in the thickness direction of the correction plate 18 and extends from the accommodation groove 58 toward the insertion port 34.

  The correction plate 18 is provided with a pipe 66 for conveying air. The pipe 66 extends along the length direction of the correction plate 18 and is disposed at the center of the correction plate 18 in the lateral width direction. The distal end portion of the pipe 66 passes through the convex portion 56, and a discharge port 68 for discharging air is formed at the distal end of the pipe 66.

  The discharge port 68 is located on the opposite side of the mounting surface 54 from the insertion port 34 and opens toward the insertion port 34. The discharge port 68 is set in a vertical position so that the center of the discharge port 68 is located at substantially the same height as the placement surface 54. That is, the height of the discharge port 68 is set so that air hits the neck of the micro screw 22 loaded on the loading unit 44.

  A communication groove 70 that connects the discharge port 68 and the accommodation groove 58 is formed at the center of the mounting surface 54 in the horizontal width direction. When air is discharged from the discharge port 68 in a state where the stacking unit 44 faces the insertion port 34, the micro screw 22 stacked on the stacking unit 44 is moved to the insertion port 34 side and supplied to the insertion port 34. .

  As shown in FIG. 1, the above-described parts feeder 12 is provided with a pressing member 72 formed of a spring plate. The holding member 72 is formed with a holding portion 74 that is disposed above the plurality of micro screws 22 and extends in the alignment direction of the plurality of micro screws 22. The distal end portion of the pressing portion 74 faces the head portion 26 of the second micro screw 22 from the top of the plurality of micro screws 22. The pressing portion 74 is formed to be inclined so as to be separated from the micro screw 22 upward from the front end portion toward the rear end side (see FIGS. 10 and 11).

  On the lower surface of the correction plate 18, a pressing portion 76 that protrudes toward the pressing member 72 is provided. The lower end portion of the pressing portion 76 is in contact with the rear end side of the pressing portion 74 with respect to the rear end side in a state where the correction plate 18 is positioned at the retracted position opposite to the insertion port 34. When the pressing portion 76 comes into contact with the rear end side with respect to the front end portion of the presser portion 74, the front end portion of the presser portion 74 is pressed against the head portion 26 of the second micro screw 22 from the top (see the lower diagram of FIG. 10). ). Further, the lower end portion of the pressing portion 76 is separated from the pressing portion 74 in a state where the correction plate 18 is positioned at the approach position close to the insertion port 34 (see the lower diagram in FIG. 11).

  As shown in FIG. 8, in addition to the above-described components, the conveyance device 10 includes a presence sensor 80, a pressure sensor 82, a drop sensor 84, a passage sensor 86, a conveyance sensor 88, a feeder driving unit 90, and cylinder driving units 92 and 94. An air delivery unit 96 and a control unit 98.

  The presence / absence sensor 80 detects whether or not the leading micro screw 22 is present at the front end portion of the transport base 28 provided in the parts feeder 12 shown in FIG. 1, and the pressure sensor 82 determines the suction pressure of the suction cylinder 16. To detect. Further, the drop sensor 84 detects whether or not the micro screw 22 adsorbed by the adsorbing portion 40 shown in FIG. 1 has fallen. The passage sensor 86 detects whether or not the micro screw 22 has passed through the transport tube 14 shown in FIG. 1, and the transport sensor 88 transports the micro screw 22 to the transport port (exit) of the transport tube 14. It is detected whether it was done.

  For example, a CCD camera or a light emitting / receiving sensor is preferably used for the presence sensor 80, the drop sensor 84, and the transport sensor 88, and a metal sensor or the like is preferably used for the passage sensor 86, for example.

  The feeder driving unit 90 vibrates the conveyance table 28 shown in FIG. 1, and the cylinder driving unit 92 expands and contracts the movable unit 38 of the suction cylinder 16 and vacuums it through the suction unit 40. The cylinder driving unit 94 extends and contracts the movable unit 50 of the air cylinder 20 shown in FIG. 1, and the air sending unit 96 supplies pulsed air to the pipe 66.

  The control unit 98 is formed by a sequencer or the like, for example. This control unit 98 is based on output signals from the presence sensor 80, the pressure sensor 82, the drop sensor 84, the passage sensor 86, the transport sensor 88, and the like. The feeder drive unit 90, cylinder drive units 92 and 94, the air delivery unit 96, and the like. To control the operation.

  As shown in FIG. 16, an automatic screw tightening machine 100 is provided on the transport tube 106 side of the transport tube 14. The automatic screw tightening machine 100 has an arrival part 102 and a bit part 104.

  The arrival unit 102 is provided in front of the end surface 108 of the conveyance tube 14 on the conveyance port 106 side, and the micro screw 22 sent out from the conveyance port 106 of the conveyance tube 14 is held by the arrival unit 102. The bit unit 104 is provided above the arrival unit 102 and includes a cylindrical case 110 and a driver 112 accommodated in the case 110. The micro screw 22 that has arrived and held at the arrival portion 102 is attached to the driver 112 and then screwed into the screw hole formed in the fastening object by the driver 112.

  Next, an example of operation | movement of the conveying apparatus 10 at the time of conveying the microscrew 22 to the automatic screw fastening machine 100 is demonstrated.

  As shown in the upper diagram of FIG. 10, in the initial state of the transport apparatus 10, a plurality of micro screws 22 are set on the transport base 28. At this time, the first micro screw 22 among the plurality of micro screws 22 is positioned at the tip of the transport table 28. Further, the suction unit 40 is located at the raised position, and the correction plate 18 is located at the retracted position.

  When the correction plate 18 is in the retracted position, the pressing portion 76 of the correction plate 18 contacts the rear end side with respect to the front end portion of the presser portion 74. Then, the distal end portion of the pressing portion 74 presses the head portion 26 of the second micro screw 22 from the top, and the second micro screw 22 from the top is fixed to the transport base 28.

  When the start switch of the transport apparatus 10 is turned on, the control unit 98 starts the operation shown in the flowchart of FIG. For each step number in the following description, the flowchart of FIG. 9 will be referred to as appropriate. FIG. 8 shows the presence sensor 80, the pressure sensor 82, the drop sensor 84, the passage sensor 86, the transport sensor 88, the feeder driving unit 90, the cylinder driving units 92 and 94, the air delivery unit 96, and the control unit 98. We will refer to it as appropriate.

  When the operation starts, the control unit 98 detects an output signal from the presence / absence sensor 80, and determines whether or not the leading micro screw 22 is present at the front end of the transport base 28 (step S1).

  If the control unit 98 determines that the leading micro screw 22 is present at the leading end of the transport table 28 (step S1: YES), the control unit 98 operates the cylinder driving unit 92 (step S2). When the cylinder driving unit 92 is actuated, as shown in the middle diagram of FIG. 10, the movable part 38 of the suction cylinder 16 extends and the suction part 40 is lowered to the lowered position. Further, the suction cylinder 16 is vacuum-sucked through the suction portion 40, and the leading micro screw 22 is sucked to the suction portion 40 (see also FIG. 12).

  Subsequently, the control unit 98 detects an output signal from the pressure sensor 82 and determines whether or not the adsorption pressure of the adsorption cylinder 16 is equal to or higher than a certain pressure, that is, whether or not the micro screw 22 is adsorbed to the adsorption unit 40. It is determined whether or not (step S3). Here, when the control unit 98 determines that the micro screw 22 is adsorbed to the adsorbing unit 40 (step S3: YES), the control unit 98 detects output signals from the passage sensor 86 and the conveyance sensor 88.

  Then, the control unit 98 determines whether or not the screw has fallen from the adsorbing portion 40, that is, the micro screw 22 normally passes through the transport tube 14 and the micro screw 22 is inserted into the transport port of the transport tube 14. It is determined whether or not it has been transported (step S4). Here, when the control unit 98 determines that the screw has not dropped from the suction portion 40 (step S4: YES), the control unit 98 operates the cylinder driving portion 92 in the opposite direction to the above-described step S2 (step S5). ). When the cylinder driving unit 92 operates in the opposite direction, the movable unit 38 of the adsorption cylinder 16 contracts and the adsorption unit 40 moves up to the position (upward position) of the end surface 36 of the transport tube 14 as shown in the lower diagram of FIG. To do.

  Subsequently, the control unit 98 operates the cylinder driving unit 94 (step S6). When the cylinder driving portion 94 is operated, the movable portion 50 of the air cylinder 20 is extended as shown in the upper diagram of FIG. 11, and the correction plate 18 is moved from the retracted position to the receiving position where the micro screw 22 is received.

  While the correction plate 18 approaches the receiving position, the body portion 24 of the micro screw 22 adsorbed by the adsorbing portion 40 is accommodated in the accommodating groove 58 through the guide groove 64 shown in FIG. And the control unit 98 controls the cylinder drive part 92, and vacuum-breaks the adsorption | suction part 40 (step S7). When the suction unit 40 breaks in vacuum, the suction state of the micro screw 22 in the suction unit 40 is released, and the micro screw 22 falls and is loaded on the stacking unit 44.

  As shown in FIG. 13, when the micro screw 22 is stacked on the stacking portion 44, the head portion 26 of the micro screw 22 is mounted on the mounting surface 54, and the convex portion 56 is the peripheral surface of the head 26. , The posture of the micro screw 22 is corrected. That is, the posture of the micro screw 22 is corrected so that the micro screw 22 is within a cross-sectional shape 60 (see FIGS. 6 and 7) obtained by extending the insertion port 34. The correction of the posture of the micro screw 22 includes correction of the positional deviation and the inclination of the micro screw 22.

  Further, as the control unit 98 continuously operates the cylinder drive unit 94, as shown in the middle diagram of FIG. 11, the correction plate 18 approaches the insertion port 34 closer to the insertion port 34 than the reception position. To the end surface 36 of the transfer tube 14 (see also FIG. 14). When the correction plate 18 moves to the approach position, the control unit 98 activates the air delivery unit 96 (step S8).

  When the air delivery unit 96 is activated, an air pulse is discharged from the discharge port 68 (see FIG. 13) through the pipe 66. Further, when air pulses are discharged from the discharge port 68, the micro screws 22 loaded on the stacking portion 44 are supplied to the insertion port 34 and inserted into the insertion port 34, as shown in the lower diagram of FIG. The The micro screw 22 inserted into the insertion port 34 is transported (pressure fed) while maintaining its posture toward the transport port side of the transport tube 14 by the air pulse discharged from the discharge port 68.

  Subsequently, the control unit 98 detects output signals from the passage sensor 86 and the conveyance sensor 88, and confirms the conveyance state of the micro screw 22 (step S9). Further, the control unit 98 determines whether or not the micro screw 22 has been transported to the transport port of the transport path 32 based on output signals from the passage sensor 86 and the transport sensor 88 (step S10).

  When the control unit 98 determines that the micro screw 22 has been transported to the transport port of the transport path 32 (step S10: YES), the control unit 98 operates the feeder drive unit 90 (step S11). Here, as shown in the middle diagram and the lower diagram in FIG. 11, the pressing portion 76 is separated from the pressing portion 74 in a state where the correction plate 18 is located at the approach position. For this reason, the state in which the head portion 26 of the second micro screw 22 from the top is pressed by the distal end portion of the pressing portion 74 is released, and a plurality of micro screws 22 can be conveyed.

  Accordingly, when the feeder driving unit 90 is operated and the conveying table 28 vibrates, as shown in the middle to right diagrams of FIG. 11, the front end of the conveying table 28 with a plurality of micro screws 22 aligned. Conveyed to the side.

  Subsequently, the control unit 98 operates the cylinder driving unit 94 in the direction opposite to the above-described step S6 (step S12). When the cylinder driving portion 94 operates in the opposite direction, the movable portion 50 of the air cylinder 20 contracts as shown in the upper diagram of FIG. 10, and the correction plate 18 retracts to the opposite side of the insertion port 34 from the receiving position. Move to the retreat position. When the correction plate 18 moves to the retracted position along the alignment direction of the plurality of micro screws 22, the front end portion of the pressing portion 74 again presses the head portion 26 of the second micro screw 22 from the top, and the second portion from the top. The individual micro screw 22 is fixed to the transport table 28.

  Then, the control unit 98 determines whether or not to end the series of operations by determining whether or not the stop switch is turned on, for example (step S13). Here, when the control unit 98 determines not to end the series of operations (step S13: NO), the control unit 98 returns to the process of step S1 described above. On the other hand, if the control unit 98 determines to end the series of work (step S13: YES), the control unit 98 ends the series of work.

  If the control unit 98 determines that the micro screw 22 is not attracted to the suction portion 40 in the process of step S3 described above (step S3: NO), the control unit 98 determines that a suction error has occurred (step S14). In this case, the control unit 98 operates the cylinder driving portion 92 to contract the movable portion 38 of the suction cylinder 16 to raise the suction portion 40 (Step S15), and returns to Step S1 described above.

  If the control unit 98 determines that the screw has fallen from the suction portion 40 in the process of step S5 described above (step S4: NO), the control unit 98 issues an operator call (step S16).

  Similarly, if the control unit 98 determines that the micro screw 22 has not been conveyed to the conveyance port of the conveyance path 32 in the process of step S10 described above (step S10: NO), it issues an operator call (step S10: NO). Step S16). Furthermore, the control unit 98 also issues an operator call (step S16) when it is determined in the processing of step S1 described above that the leading micro screw 22 is not present at the front end of the transport table 28 (step S1: NO). ).

  Next, the operation and effect of this embodiment will be described.

  When the conveyance path 32 of the conveyance tube 14 has a T-shaped cross section corresponding to the minute screw 22, the minute screw 22 is supplied to the automatic screw tightening machine 100 while maintaining the posture of the minute screw 22 by the conveyance tube 14. be able to. If the micro screw 22 can be supplied to the automatic screw tightening machine 100 while maintaining the posture of the micro screw 22, the automatic screw tightening machine 100 corrects the posture of the micro screw 22 or matches the posture of the micro screw 22 with the automatic screw tightening machine. Changing the position of 100 can be made unnecessary. Therefore, the transport tube 14 having the transport path 32 formed in a T-shaped cross section corresponding to the micro screw 22 is useful for shortening the tact time and improving the production efficiency.

  By the way, in the conveyance device 10 that conveys the micro screw 22 to the conveyance tube 14, when the micro screw 22 conveyed by the parts feeder 12 is adsorbed by the adsorption unit 40, the micro screw 22 has a posture such as a positional deviation or an inclination. Changes (deviation from the normal posture) may occur. When the micro screw 22 is supplied to the insertion port 34 with the posture changed, the micro screw 22 interferes with the peripheral edge of the insertion port 34 and the micro screw 22 falls, so that the micro screw 22 is normal to the insertion port 34. There is a possibility that it cannot be supplied.

  However, in the transport device 10 according to the present embodiment, as shown in FIGS. 10 and 11, the micro screw 22 transported to the position facing the insertion port 34 by the suction cylinder 16 is replaced with the correction plate 18. The posture is corrected by the correction plate 18. Then, the micro screw 22 is supplied to the insertion port 34 with the posture of the micro screw 22 corrected. Therefore, for example, when the micro screw 22 is adsorbed, even if the micro screw 22 is changed in posture such as displacement or inclination, the posture of the micro screw 22 is corrected. It can suppress that the microscrew 22 interferes. Thereby, the micro screw 22 can be stably inserted into the insertion port 34.

  In particular, in the stacking portion 44 of the correction plate 18, the posture of the micro screw 22 is corrected so that the micro screw 22 is within a cross-sectional shape 60 (see FIGS. 6 and 7) obtained by extending the insertion port 34. . Accordingly, since the micro screw 22 can be effectively prevented from interfering with the peripheral edge portion of the insertion port 34, the micro screw 22 can be stably inserted through the insertion port 34.

  Further, as illustrated in FIG. 5, the stacking unit 44 includes a mounting surface 54 on which the head 26 of the micro screw 22 is mounted, and a convex disposed along the peripheral surface of the head 26 of the micro screw 22. Part 56 and an accommodation groove 58 in which the body 24 of the micro screw 22 is accommodated. Thereby, the posture of the micro screw 22 can be effectively corrected with a simple structure.

  Further, the correction plate 18 supplies the micro screws 22 loaded on the loading unit 44 to the insertion port 34 along the opening direction of the insertion port 34. Therefore, the micro screw 22 is inserted into the insertion port 34 while suppressing the micro screw 22 whose posture has been corrected so as to fit in the cross-sectional shape 60 obtained by extending the insertion port 34 from interfering with the peripheral portion of the insertion port 34. Can be inserted smoothly.

  The correction plate 18 is continuous with the mounting surface 54, extends from the mounting surface 54 toward the insertion port 34, and communicates with the storage groove 58 and extends from the storage groove 58 toward the insertion port 34. Groove 64. Therefore, when supplying the micro screw 22 to the insertion port 34, the head portion 26 of the micro screw 22 is guided by the guide surface 62 and the body portion 24 of the micro screw 22 is guided by the guide groove 64. The posture of the micro screw 22 supplied to the insertion port 34 can be maintained.

  The correction plate 18 is provided with a discharge port 68 that is located on the opposite side of the mounting surface 54 from the insertion port 34 of the transport path 32 and discharges air toward the insertion port 34 of the transport path 32. Thereby, the micro screw 22 can be conveyed toward the insertion port 34 with a simple structure, and the micro screw 22 inserted into the insertion port 34 can be conveyed to the conveyance port (exit) of the conveyance tube 14.

  Moreover, the adsorption | suction part 40 is formed with elastic bodies, such as rubber | gum, for example. Accordingly, when the micro screw 22 is gripped by the suction portion 40, the adhesion between the suction portion 40 and the micro screw 22 can be ensured by the deformation of the suction portion 40. Thereby, the holding | maintenance property of the microscrew 22 by the adsorption | suction part 40 is securable.

  Next, a modification of this embodiment will be described.

  In the present embodiment, the suction portion 40 is formed of an elastic body such as rubber, but as shown in FIG. 15, the suction portion 40 may be formed of a rigid body such as metal.

  Thus, if the suction part 40 that sucks the micro screws 22 is formed of a rigid body, the durability of the suction part 40 can be improved. In addition, since air can be easily leaked at the suction portion 40, vacuum breakage from the state where the micro screws 22 are sucked at the suction portion 40 can be facilitated. Furthermore, it is possible to prevent the suction portion 40 from being deformed when the micro screw 22 is sucked by the suction portion 40. Thereby, since it can suppress that the head 26 of the micro screw 22 enters the inside of the adsorption | suction part 40, it can suppress that the micro screw 22 remains gripped by the adsorption | suction part 40 after a vacuum break.

  Further, in the present embodiment, the plate-shaped correction plate 18 is used as an example of the “correction unit”, but a correction unit formed in a shape other than the plate shape may be used.

  Moreover, in this embodiment, although the conveyance target object of the conveying apparatus 10 is made into the microscrew 22 as an example of "fastening components", it is a fastening component (for example, a head part other than the microscrews 22 and a trunk | drum). Rivet etc.) may be used. Further, the fastening part may not be minute. Furthermore, the fastening component may be formed of a material other than metal, such as resin.

  In the present embodiment, the suction cylinder 16 that sucks the micro screw 22 is used as an example of the “grip part”, but a mechanism that grips the micro screw 22 by a method other than suction may be used. In addition, as an example of the “supply unit”, the parts feeder 12 is used, but a transport supply mechanism other than the parts feeder 12 may be used.

  In this embodiment, the transport tube 14 is used as an example of the “transport section”. However, if the transport tube is a member having a transport path formed in a T-shaped cross section corresponding to the micro screw 22, the transport tube is used. It may be other than 14.

  In the present embodiment, the presser member 72 provided on the parts feeder 12 and the presser part 74 provided on the correction plate 18 are provided so that the second micro screw 22 from the top is not attracted to the suction part 40. It is used. However, another mechanism may be used so that the second micro screw 22 from the top is not attracted to the attracting portion 40.

  Moreover, in this embodiment, although the conveying apparatus 10 contains the parts feeder 12 and the conveying tube 14, the parts feeder 12 and the conveying tube 14 do not need to be contained in the conveying apparatus 10. FIG.

  As mentioned above, although one embodiment of the technique disclosed in the present application has been described, the technique disclosed in the present application is not limited to the above, and various modifications may be made without departing from the spirit of the present invention. Of course, it is possible.

  In addition, regarding the embodiment of the technology disclosed in the present application, the following additional notes are disclosed.

(Appendix 1)
A gripping part for gripping a fastening part having a body part and a head part, and transporting the fastening part to a position facing an insertion port of a transportation path formed in a T-shaped cross section corresponding to the fastening part;
A correction unit that receives the fastening part gripped by the gripping part and corrects the posture of the fastening part, and supplies the fastening part to the insertion port of the conveyance path;
Fastener conveying device comprising:
(Appendix 2)
The correction unit corrects the posture of the fastening part so that the fastening part is within a cross-sectional shape obtained by extending the insertion port of the conveyance path along the opening direction of the insertion port.
The fastening device conveying apparatus according to appendix 1.
(Appendix 3)
The gripping portion has a suction portion that moves from a lowered position to a raised position in a state of sucking the fastening component,
The correction unit is located at a retracted position retracted to the opposite side to the insertion port of the transport path when the suction unit is in the lowered position, and is attracted to the suction unit when the suction unit is in the raised position. Moved to a receiving position for receiving the fastening parts
The transport apparatus for fastening parts according to Supplementary Note 1 or Supplementary Note 2.
(Appendix 4)
The correction unit moves to an approach position closer to the insertion port of the transport path than the receiving position when the suction unit is in the raised position, and supplies the fastening component to the insertion port of the transport path.
The fastening device conveyance apparatus according to attachment 3.
(Appendix 5)
The correction unit has a stacking unit on which the fastening parts gripped by the gripping unit are stacked.
The loading portion includes a placement surface on which a head of the fastening component is placed, a convex portion that protrudes from the placement surface and is disposed along a peripheral surface of the head of the fastening component, and the fastening component. A housing groove in which the body portion is housed,
The fastening device conveying apparatus according to any one of Supplementary Notes 1 to 4.
(Appendix 6)
The correction unit supplies the fastening component loaded on the stacking unit to the insertion port of the conveyance path along the opening direction of the insertion port of the conveyance path.
The fastening device conveyance device according to any one of Supplementary Notes 1 to 5.
(Appendix 7)
The correction unit is continuous with the placement surface and extends from the placement surface toward the insertion port of the conveyance path, and communicates with the accommodation groove toward the insertion port of the conveyance path. An extending guide groove,
The fastening device conveyance apparatus according to appendix 6.
(Appendix 8)
The correction unit is provided with a discharge port that discharges air toward the insertion port of the conveyance path located on the opposite side to the insertion port of the conveyance path with respect to the mounting surface.
The transport apparatus for fastening parts according to any one of appendix 1 to appendix 7.
(Appendix 9)
The gripping part is a suction cylinder that sucks and transports the head of the fastening part.
The transport apparatus for fastening parts according to any one of appendices 1 to 8.
(Appendix 10)
The gripping part has a suction part that sucks the head of the fastening part,
The adsorption part is formed of an elastic body,
The transport apparatus for fastening parts according to any one of appendices 1 to 9.
(Appendix 11)
The gripping part has a suction part that sucks the head of the fastening part,
The adsorption part is formed of a rigid body,
The transport apparatus for fastening parts according to any one of appendices 1 to 9.
(Appendix 12)
A transport unit having the transport path;
The transport apparatus for fastening parts according to any one of appendices 1 to 11.
(Appendix 13)
The transport unit is a transport tube.
The fastening part conveying apparatus according to attachment 12.
(Appendix 14)
A supply unit for supplying the fastening component;
The transport apparatus for fastening parts according to any one of appendices 1 to 13.
(Appendix 15)
The supply unit conveys the plurality of fastening parts in an aligned state, and supplies a leading fastening part among the plurality of fastening parts to the gripping part,
The correction unit includes a receiving position for receiving the fastening component gripped by the gripping part, an approach position closer to the insertion port of the transport path than the receiving position, and a retracted position retracted from the receiving position. Move along the alignment direction of multiple fastening parts,
The supply unit is provided with a pressing member that faces the head of the second fastening part from the top of the plurality of fastening parts,
The correction unit is separated from the presser member when the correction unit is in the approach position, and the presser member is placed on the head of the second fastening part when the correction unit is in the retracted position. A pressing part for pressing is provided,
The transport apparatus for fastening parts according to any one of appendices 1 to 14.
(Appendix 16)
The fastening part is a screw or a rivet,
The transport apparatus for fastening parts according to any one of appendices 1 to 15.

10 Conveying device 12 Parts feeder (an example of a supply unit)
14 Transport tube (an example of transport section)
16 Suction cylinder (an example of a gripping part)
18 Correction plate (example of correction unit)
22 Small screw (an example of fastening parts)
24 body portion 26 head portion 32 conveyance path 34 insertion port 40 suction portion 44 stacking portion 54 placement surface 56 convex portion 58 receiving groove 60 cross-sectional shape 62 guide surface 64 guide groove 68 discharge port 72 pressing member 74 pressing portion 76 pressing portion

Claims (8)

A gripping part for gripping a fastening part having a body part and a head part, and transporting the fastening part to a position facing an insertion port of a transportation path formed in a T-shaped cross section corresponding to the fastening part;
A correction unit that receives the fastening part gripped by the gripping part and corrects the posture of the fastening part, and supplies the fastening part to the insertion port of the conveyance path;
Fastener conveying device comprising: The correction unit corrects the posture of the fastening part so that the fastening part is within a cross-sectional shape obtained by extending the insertion port of the conveyance path along the opening direction of the insertion port.
The fastener conveying apparatus according to claim 1. The correction unit has a stacking unit on which the fastening parts gripped by the gripping unit are stacked.
The loading portion includes a placement surface on which a head of the fastening component is placed, a convex portion that protrudes from the placement surface and is disposed along a peripheral surface of the head of the fastening component, and the fastening component. A housing groove in which the body portion is housed,
The conveying apparatus of the fastening components of Claim 1 or Claim 2. The correction unit supplies the fastening component loaded on the stacking unit to the insertion port of the conveyance path along the opening direction of the insertion port of the conveyance path.
The conveying apparatus of the fastening components as described in any one of Claims 1-3. The correction unit is continuous with the placement surface and extends from the placement surface toward the insertion port of the conveyance path, and communicates with the accommodation groove toward the insertion port of the conveyance path. An extending guide groove,
The fastening device conveying apparatus according to claim 4. The correction unit is provided with a discharge port that discharges air toward the insertion port of the conveyance path located on the opposite side to the insertion port of the conveyance path with respect to the mounting surface.
The conveying apparatus of the fastening components as described in any one of Claims 1-5. The gripping part has a suction part that sucks the head of the fastening part,
The adsorption part is formed of an elastic body,
The conveying apparatus of the fastening components as described in any one of Claims 1-6. The gripping part has a suction part that sucks the head of the fastening part,
The adsorption part is formed of a rigid body,
The conveying apparatus of the fastening components as described in any one of Claims 1-6.