Tape feeder position adjustment device and tape feeder position adjustment method

Abstract

To provide a tape feeder position adjustment device capable of easily and quickly performing tape feeder position adjustment work, and a tape feeder position adjustment method.SOLUTION: The position in a lateral direction of multiple feed pins included in a positioning sprocket is measured in a state where an eccentric pin protruding from a main body 51 of a tape feeder 16 is inserted into a through hole provided in the mounting slot. The position of the tape feeder 16 in the lateral direction is recognized based on the measured position of the multiple feed pins in the lateral direction, and it is determined whether the position adjustment in the lateral direction of the tape feeder is necessary based on the recognized position of the tape feeder 16 in the lateral direction. When the position adjustment is necessary, the eccentric pin is rotated by an eccentric pin rotation unit 75 via the through hole from the other side of the tape feeder 16, and the position of the tape feeder 16 in the lateral direction is adjusted by displacing the tape feeder 16 in the lateral direction.SELECTED DRAWING: Figure 10

Description

Technical Field

[0001] The present invention relates to a tape feeder position adjustment device and a tape feeder position adjustment method for performing lateral position adjustment with respect to a mounting slot of a tape feeder that conveys a carrier tape.

Background Art

[0002] Conventionally, a component mounting device that picks up components supplied by a tape feeder with a nozzle and mounts them on a substrate is known. The tape feeder is used by being mounted in a mounting slot of the tape feeder provided in the component mounting device, and the carrier tape is conveyed by rotating a sprocket with a feed pin engaged with a feed hole of the carrier tape.

[0003] In the above-described component mounting device, when the nozzle picks up a component from the tape feeder, it is automatically moved to the component take-out port of the tape feeder. Therefore, the component take-out port of the tape feeder needs to be accurately positioned. Positioning of the tape feeder with respect to the mounting slot is performed, for example, as shown in the following patent document, by inserting an eccentric pin provided on the tape feeder into a positioning hole on the mounting slot side and rotating the eccentric pin to swing the tape feeder in the lateral direction (a direction intersecting in the horizontal plane with respect to the conveyance direction of the carrier tape).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, the rotation of the eccentric pins (i.e., the adjustment of the tape feeder's lateral position) was performed manually by the operator. As a result, adjusting the position of the tape feeder was time-consuming, and there was a problem in that it took a lot of time to adjust the position of all of the multiple tape feeders lined up on the feeder base.

[0006] Therefore, the present invention aims to provide a tape feeder position adjustment device and a tape feeder position adjustment method that can perform tape feeder position adjustment work easily and quickly. [Means for solving the problem]

[0007] The tape feeder position adjustment device of the present invention is a tape feeder position adjustment device that adjusts the lateral position of a tape feeder intersecting the transport direction of the carrier tape in a horizontal plane, the tape feeder position adjustment device comprising a main body having a sprocket for transporting a carrier tape forward, and an eccentric pin extending forward from the front end of the main body, the tape feeder position adjustment device comprising a mounting slot into which the tape feeder is mounted, a through hole provided in the mounting slot for inserting the eccentric pin to position the tape feeder mounted in the mounting slot in the lateral direction, and the tape feeder mounted in the mounting slot by rotating the eccentric pin from the opposite side of the tape feeder through the through hole The tape feeder comprises: an eccentric pin rotation unit that displaces the feeder in the lateral direction; a measurement unit that measures the positions of a plurality of feed pins provided on the sprocket; a feeder position recognition unit that recognizes the lateral position of the tape feeder based on the positions of the plurality of feed pins measured by the measurement unit; a determination unit that determines whether adjustment of the lateral position of the tape feeder is necessary based on the lateral position of the tape feeder recognized by the feeder position recognition unit; and a position adjustment unit that, if the determination unit determines that adjustment of the lateral position of the tape feeder is necessary, rotates the eccentric pin with the eccentric pin rotation unit to adjust the lateral position of the tape feeder.

[0008] The present invention relates to a tape feeder position adjustment method, which adjusts the lateral position of a tape feeder having a main body having a sprocket for transporting a carrier tape forward, and an eccentric pin extending forward from the front end of the main body, in a direction that intersects the transport direction of the carrier tape in a horizontal plane, comprising: a mounting step of inserting the eccentric pin into a through hole provided in a mounting slot in which the tape feeder is mounted, thereby mounting the tape feeder in the mounting slot and causing the through hole to position the tape feeder in the lateral direction; and a step of, with the tape feeder mounted in the mounting slot in the mounting step, the plurality of feed pins provided on the sprocket The system includes: a measurement step for measuring the lateral position; a feeder position recognition step for recognizing the lateral position of the tape feeder based on the lateral positions of the plurality of feed pins measured in the measurement step; a determination step for determining whether adjustment of the lateral position of the tape feeder is necessary based on the lateral position of the tape feeder recognized in the feeder position recognition step; and a position adjustment step, if the determination step determines that adjustment of the lateral position of the tape feeder is necessary, for adjusting the lateral position of the tape feeder by rotating the eccentric pin from the opposite side of the tape feeder through the through hole using an eccentric pin rotating part, thereby displacing the tape feeder in the lateral direction. [Effects of the Invention]

[0009] According to the present invention, the tape feeder position adjustment work can be performed easily and quickly. [Brief explanation of the drawing]

[0010] [Figure 1] A perspective view of a component mounting device using a tape feeder whose position is adjusted by a tape feeder position adjustment device according to one embodiment of the present invention. [Figure 2] (a)(b) Perspective view showing the feeder base, together with the tape feeder, of a component mounting device according to one embodiment of the present invention. [Figure 3]Front view of a portion of the wall portion of the feeder base of a component mounting device according to one embodiment of the present invention. [Figure 4] Perspective view of a reel and carrier tape wound around a component mounting device according to one embodiment of the present invention. [Figure 5] (a)(b) Perspective view of a tape feeder included in a component mounting device according to one embodiment of the present invention. [Figure 6] (a) Side view and (b) Top view of a tape feeder in one embodiment of the present invention [Figure 7] Enlarged plan view of a portion of a tape feeder in one embodiment of the present invention. [Figure 8] (a)(b)(c) Diagram illustrating the configuration of the first positioning pins in a tape feeder according to one embodiment of the present invention. [Figure 9] (a)(b) Partial cross-sectional side view of a part of the tape feeder and a part of the feeder base in one embodiment of the present invention [Figure 10] A perspective view showing a tape feeder position adjustment device together with a tape feeder in one embodiment of the present invention. [Figure 11] (a)(b) Perspective view showing the adjustment device base of the tape feeder position adjustment device in one embodiment of the present invention together with the tape feeder. [Figure 12] Front view of a portion of the wall portion of the adjustment device base of a tape feeder position adjustment device according to one embodiment of the present invention. [Figure 13] A partial cross-sectional plan view showing the eccentric pin rotation portion of a tape feeder position adjustment device according to one embodiment of the present invention, together with a portion of the tape feeder mounted on the adjustment device base. [Figure 14] A partial cross-sectional plan view showing the eccentric pin rotation portion of a tape feeder position adjustment device according to one embodiment of the present invention, together with a portion of the tape feeder mounted on the adjustment device base. [Figure 15] Block diagram showing the control system of a tape feeder position adjustment device in one embodiment of the present invention. [Figure 16]Flowchart showing the procedure for adjusting the position of a tape feeder by the tape feeder position adjusting device according to an embodiment of the present invention [Figure 17] Flowchart showing the procedure for adjusting the position of a tape feeder by the tape feeder position adjusting device according to an embodiment of the present invention

Embodiments for Carrying out the Invention

[0011] Hereinafter, embodiments of the present invention will be described with reference to the drawings. First, the configuration of a component mounting apparatus in which a tape feeder whose position is adjusted by the tape feeder position adjusting apparatus (tape feeder position adjusting method) of the present invention is used will be described.

[0012] FIG. 1 shows a component mounting apparatus 1. The component mounting apparatus 1 is an apparatus for mounting a component BH on a substrate KB. As shown in FIG. 1, the component mounting apparatus 1 includes a substrate transfer unit 12 on a base 11. The substrate transfer unit 12 transfers the substrate KB in the horizontal direction and positions it at a predetermined working position. Hereinafter, for convenience of explanation, the transfer direction of the substrate KB by the substrate transfer unit 12 is defined as the X direction, the horizontal direction orthogonal to the X direction is defined as the Y direction, and the vertical direction is defined as the Z direction.

[0013] Above the base 11, a mounting head 13 is provided. The mounting head 13 is moved horizontally by a head movement mechanism (not shown). The mounting head 13 includes a plurality of component holding nozzles 14 extending downward.

[0014] In FIG. 1, a carriage 15 is connected to an end of the base 11 in the Y direction. A plurality of tape feeders 16 as component supply units are mounted side by side in the X direction on the carriage 15.

[0015] In Figure 1, the trolley 15 is equipped with a feeder base 21 and a reel holding section 22. The feeder base 21 is the part on which the tape feeder 16 is mounted, and as shown in Figures 2(a) and (b), it has a block-shaped base section 31 and a wall section 32 provided at the front of the base section 31 and extending upward. The upper surface of the base section 31 is a feeder support section 33, and the rear surface of the base section 31 is a feeder connection surface 34.

[0016] The base portion 31 is provided with mounting slots 35 for mounting tape feeders 16, arranged in the X direction. As shown in Figure 2(a), one mounting slot 35 consists of a pair of feeder guides 41 arranged in the X direction on the feeder support portion 33, a first positioning hole 42 and a second positioning hole 43 which are through holes penetrating the wall portion 32 in the thickness direction (Y direction), and a mounting hole 44 and a socket 45 provided on the feeder connection surface 34. Thus, in this embodiment, the feeder base 21 has multiple mounting slots 35 arranged in the X direction.

[0017] The feeder guide 41 consists of rail-shaped members extending in the front-to-back direction (Y direction) arranged side by side in the lateral direction (X direction, which intersects the carrier tape transport direction in the horizontal plane). The first positioning hole 42 and the second positioning hole 43 are arranged side by side in the Z direction, with the first positioning hole 42 located above the second positioning hole 43. The first positioning hole 42 is an elongated hole extending in the vertical direction, and the second positioning hole 43 is a circular hole (Figure 3). The mounting hole 44 and the socket 45 are provided on the feeder connection surface 34. The mounting hole 44 and the socket 45 are arranged side by side in the Z direction, with the mounting hole 44 located above the socket 45.

[0018] The reel holding unit 22 rotatably holds the reel RL around which the carrier tape CT, transported by the tape feeder 16, is wound. As shown in Figure 4, the carrier tape CT contains numerous components BH arranged in a single row. The carrier tape CT has numerous feed holes KH arranged in a single row parallel to the row of components BH (Figure 4).

[0019] Figures 5(a),(b) and 6(a),(b) show the tape feeder 16. The tape feeder 16 has a main body 51 that is detachably attached to the feeder base 21, and is configured to pull out the carrier tape CT from the reel RL and supply it to the component removal position 16T (Figure 7; Figure 7 is an enlarged view of the area RY shown in Figure 6(b)) within the component removal opening 16K.

[0020] In Figure 6(a), the front upper part of the main body 51 of the tape feeder 16 is provided with an introduction sprocket 52, a positioning sprocket 53, and an discharge sprocket 54. Each of the introduction sprocket 52, positioning sprocket 53, and discharge sprocket 54 has a plurality of feed pins 55 on its outer circumference.

[0021] The three sprockets (introduction sprocket 52, positioning sprocket 53, and discharge sprocket 54) are rotated in the same direction via a gear mechanism by a motor (not shown) located inside the main body 51. The direction in which the three sprockets rotate is such that the feed pin 55, located at the highest position of each sprocket, moves forward, thereby transporting the carrier tape CT toward the front of the main body 51. Here, "forward" refers to the direction in the Y direction that, as viewed from the tape feeder 16, faces the substrate transport section 12.

[0022] In Figure 6(a), a tape transport path 56, which is a passage for the carrier tape CT, is formed inside the main body 51 and extends in the Y direction as a whole. A tape inlet 57, which is the entrance for the carrier tape CT to the tape transport path 56, is provided at the rear end of the main body 51, and a tape outlet 58, which is the exit for the carrier tape CT from the tape transport path 56, is provided at the front end of the main body 51.

[0023] The three sprockets are positioned from rear to front in the order of introduction sprocket 52, positioning sprocket 53, and discharge sprocket 54. The carrier tape CT inserted into the tape transport path 56 from the tape introduction port 57 has its leading edge moved forward by the introduction sprocket 52 and then handed over to the positioning sprocket 53. The positioning sprocket 53 transports the carrier tape CT received from the introduction sprocket 52 forward, intermittently positioning the parts BH stored in the carrier tape CT at the parts outlet 16K as it transports forward. The discharge sprocket 54 transports the carrier tape CT received from the positioning sprocket 53 forward and discharges it to the outside of the main body 51 from the tape discharge port 58.

[0024] In this embodiment, the introduction sprocket 52, positioning sprocket 53, and discharge sprocket 54 provided in the main body 51 of the tape feeder 16 constitute a tape transport section that transports the carrier tape CT forward by rotating with the feed pin 55 engaged with the feed hole KH of the carrier tape CT.

[0025] As described above, each component BH stored in the carrier tape CT is positioned in the component outlet 16K by the positioning sprocket 53. At this time, the positioning sprocket 53 controls the front-to-back position of the carrier tape CT by the feed pin 55 located at the highest position (hereinafter referred to as the "highest position feed pin 55S"; Figure 6(a)), thereby precisely positioning the component BH in the component outlet 16K.

[0026] As shown in Figures 6(a) and 6(b), a tape cover 59 is provided on the front upper part of the main body 51, covering from above the portion of the tape transport path 56 located between the positioning sprocket 53 and the discharge sprocket 54. The aforementioned parts outlet 16K is formed in the tape cover 59 (Figure 7). As a result, parts BH positioned in the parts outlet 16K are exposed from above. This allows the mounting head 13 to use the parts holding nozzle 14 to attract and hold the parts BH located in the parts outlet 16K, and to remove (pick up) them from the tape feeder 16.

[0027] As shown in Figure 7, the tape cover 59 is provided with a relief hole 60 extending in the Y direction. The relief hole 60 is provided to prevent interference between the feed pin 55 of the positioning sprocket 53 and the tape cover 59.

[0028] In Figures 5(a), (b) and 6(a), the front end of the main body 51 is provided with two positioning pins that protrude forward: a first positioning pin 61 located on the upper side and a second positioning pin 62 located on the lower side. The outer diameter of the first positioning pin 61 (the cross-sectional shape when sliced ​​in the XZ plane) is circular, and its diameter is slightly smaller than the inner dimension of the smaller diameter side (width direction of the main body 51) of the first positioning hole 42, which is an elongated hole extending in the vertical direction.

[0029] As shown in Figures 8(a) and (b), the first positioning pin 61 has a cone-shaped tip 61T, a cylindrical diameter-enlarged portion 61H, and a cylindrical mounting shaft 61B. The center line C1 of the mounting shaft 61B and the center line C2 of the diameter-enlarged portion 61H (hereinafter referred to as the diameter-enlarged portion center line) extend parallel to each other in the same direction, but it is an eccentric pin that is eccentric by a radial eccentricity amount Ec. The mounting shaft 61B is mounted by press-fitting it into the pin mounting hole 51H formed in the main body 51. When mounted in the pin mounting hole 51H, the center line C1 and the diameter-enlarged portion center line C2 of the first positioning pin 61 extend from the main body 51 in the Y direction (forward). Therefore, when the first positioning pin 61 is rotated around the center line C1, the diameter-enlarged portion 61H rotates while drawing a circular orbit CK around the center line C1 with a radius of eccentricity amount Ec (Figure 8(c)). As a result, the diameter-enlarged portion 61H is displaced in the X direction (lateral direction) within a range of ±Ec with respect to the center line C1.

[0030] In Figure 5(a), the tip 61T of the first positioning pin 61 is provided with a linear ("minus" shaped) groove 61M. Therefore, by inserting a tool with a linear end into the groove 61M and twisting it, the first positioning pin 61 can be rotated in the eccentric state described above.

[0031] In Figures 5(a), (b) and 6(a), a downward extension 63 is formed at the rear of the main body 51 of the tape feeder 16. A fixed portion 64 and a connector 65 are provided on the front side of the downward extension 63. When the tape feeder 16 is mounted in the mounting slot 35, the engaged portion 51K (Figure 5(a)) provided at the lower part of the main body 51 is inserted between the feeder guides 41 that constitute the mounting slot 35. As a result, the first positioning pin 61 is inserted into the first positioning hole 42, and the second positioning pin 62 is inserted into the second positioning hole 43 (Figure 9(a) → Figure 9(b)).

[0032] Furthermore, when the tape feeder 16 is mounted in the mounting slot 35 as described above, the fixed part 64 fits into the mounting hole 44, and the connector 65 fits into the socket 45. When the fixed part 64 fits into the mounting hole 44, the fixed part 64 connects to a fixing part (not shown) provided inside the base 31, and the tape feeder 16 is fixed to the base 31. Also, when the connector 65 engages with the socket 45, the tape feeder 16 is electrically and signal-transmittingly connected to the base 31 (i.e., to the control unit of the component mounting device 1).

[0033] Furthermore, when the first positioning pin 61 is inserted into the first positioning hole 42 and the second positioning pin 62 is inserted into the second positioning hole 43 as described above, the tape feeder 16 is positioned relative to the mounting slot 35.

[0034] In the component mounting device 1, in order to increase productivity, the component BH mounting operation is sometimes performed by simultaneously picking up component BHs from multiple tape feeders 16 using multiple component holding nozzles 14, a so-called simultaneous picking operation. In order to realize the simultaneous picking operation, it is important to keep the variation in the component picking position 16T of the tape feeders 16 mounted in the mounting slot 35 within a specified range.

[0035] Variations in the Y direction can be corrected by the transport of the carrier tape CT by the tape feeder 16, and variations in the Z direction can be absorbed to some extent by the raising and lowering operation of the component holding nozzle 14 by the mounted head 13. However, since the X direction (lateral direction) of the tape feeder 16 cannot be adequately addressed by correcting the stopping position of the mounted head 13, it is necessary to suppress mechanical variations of the tape feeder 16. As described above, in this embodiment, the position of the tape feeder 16 in the X direction is determined by inserting the first positioning pin 61 into the first positioning hole 42. Therefore, for tape feeders 16 whose mechanical variations do not meet the standard, the variations can be kept within the standard by rotating the first positioning pin 61 around the center line C1.

[0036] Next, we will describe a tape feeder position adjustment device 70, which is a device for adjusting the lateral position of the tape feeder 16 used in the component mounting device 1 with the mounting slot 35.

[0037] Figure 10 shows the tape feeder position adjustment device 70. As shown in Figure 10, the tape feeder position adjustment device 70 is equipped with an adjustment device base 71K on a frame 71. This adjustment device base 71K has the same structure as the feeder base 21 provided by the component mounting device 1, and as shown in Figures 11(a) and (b), it has a block-shaped base portion 31K and a wall portion 32K provided at the front of the base portion 31K and extending upward. The upper surface of the base portion 31K is a feeder support portion 33K, and the rear surface of the base portion 31K is a feeder connection surface 34K.

[0038] The base portion 31K is provided with mounting slots 35K for mounting the tape feeder 16, arranged in the X direction. As shown in Figure 11(a), one mounting slot 35K consists of a pair of feeder guides 41K arranged in the X direction on the feeder support portion 33K, a first positioning hole 42K and a second positioning hole 43K which are through holes penetrating the wall portion 32K in the thickness direction (Y direction), and a mounting hole 44K and a socket 45K provided on the feeder connection surface 34K. Thus, in this embodiment, the adjustment device base 71K has multiple mounting slots 35K arranged in the X direction.

[0039] The feeder guide 41K consists of rail-shaped members extending in the front-to-back direction (Y direction) and arranged side by side in the lateral direction (X direction). The first positioning hole 42K and the second positioning hole 43K are arranged side by side in the Z direction, with the first positioning hole 42K located above the second positioning hole 43K. The first positioning hole 42K is an elongated hole extending in the vertical direction, and the second positioning hole 43K is a circular hole (Figure 12). The mounting hole 44K and the socket 45K are provided on the feeder connection surface 34K. The mounting hole 44K and the socket 45K are arranged side by side in the Z direction, with the mounting hole 44K located above the socket 45K.

[0040] In Figure 10, the tape feeder position adjustment device 70 is equipped with a table device 72 on a frame 71. On the table device 72 is a sliding body 73 which is driven (slids) in the X direction by the table device 72. On the sliding body 73 is a forward / backward drive unit 74 and an eccentric pin rotation unit 75 which is moved (advances and retracts) in the Y direction by the forward / backward drive unit 74. In Figure 10, a camera mounting base 76 is provided on the sliding body 73, and a camera 77, which serves as an imaging unit, is mounted on the camera mounting base 76.

[0041] Camera 77 is positioned so that its imaging field of view is directed downwards. Camera 77 images the multiple feed pins 55 of the positioning sprocket 53 through the relief holes 60. For this reason, the camera 77 is positioned so that the multiple feed pins 55 of the positioning sprocket 53 are within the imaging area SS (Figure 7). The adjustment device base 71K is a tape feeder mounting section having multiple mounting slots 35K arranged in the X direction (lateral direction), and the relief holes 60 of each of the multiple tape feeders 16 mounted on the adjustment device base 71K are aligned in a line in the X direction. Therefore, by moving in the X direction, camera 77 can image the feed pins 55 of all tape feeders 16 mounted on the adjustment device base 71K through their relief holes 60.

[0042] As shown in Figures 13 and 14, the eccentric pin rotating section 75 includes a reciprocating member 81 that moves back and forth in the Y direction (forward and backward direction) driven by a reciprocating drive unit 74, and a sliding section 82 that is movable in the Y direction relative to the reciprocating member 81. The reciprocating member 81 and the sliding section 82 are connected by a pressure spring 83. As shown in Figures 13 and 14, the eccentric pin rotating section 75 includes a reduction gear 84 attached to the sliding section 82. The reduction gear 84 holds a drive motor 85 as a rotation drive unit and an output shaft 86 from which the rotation of the drive motor 85 is output.

[0043] The reduction unit 84 reduces the rotational speed of the drive motor 85 by a reduction mechanism (not shown) located inside, and increases the driving torque of the drive motor 85 to rotate the output shaft 86. The base end (rear end) of an adjustment bit 87, which extends in the Y direction and has its tip (front end) facing rearward, is attached to the output shaft 86.

[0044] Figure 15 shows the control system of the tape feeder position adjustment device 70. As shown in Figure 15, the processing unit 90 of the tape feeder position adjustment device 70 includes a feeder insertion detection unit 91, a feeder drive control unit 92, a table device drive control unit 93, a forward / backward control unit 94, a pin position recognition unit 95, a drive motor control unit 96, a feeder position recognition unit 97, a representative feed pin determination unit 98, a displacement direction detection unit 101, a rotation direction determination unit 102, a determination unit 103, a storage unit 104, and a position adjustment unit 105.

[0045] The feeder insertion detection unit 91 in the processing unit 90 detects which of the multiple mounting slots 35K in the adjustment device base 71K the tape feeder 16 is inserted into. The feeder drive control unit 92 drives the tape feeder 16, which the feeder insertion detection unit 91 has detected as being mounted in a mounting slot 35K of the adjustment device base 71K, to perform rotational movement of the three sprockets (introduction sprocket 52, positioning sprocket 53, and discharge sprocket 54) (i.e., carrier tape transport operation).

[0046] The table device drive control unit 93 drives the table device 72, which is mounted on the frame 71, to slide the slide body 73 in the lateral direction (X direction). As a result, the camera 77, which serves as the imaging unit, and the eccentric pin rotation unit 75 move in the lateral direction (X direction) together with the forward / backward drive unit 74.

[0047] The forward / backward control unit 94 moves the eccentric pin rotating part 75 in the forward / backward direction (Y direction). Here, the movement of the eccentric pin rotating part 75 toward the tape feeder 16 (movement toward the rear) is defined as "forward," and the movement toward the tape feeder 16 (movement toward the front) is defined as "backward."

[0048] The forward / backward control unit 94 advances the eccentric pin rotating part 75 from a position where the tip of the adjustment bit 87 is positioned opposite the first positioning hole 42K in the mounting slot 35K of the adjustment device base 71K, to which the tape feeder 16 to be adjusted is mounted, in the Y direction. As a result, the adjustment bit 87 is inserted into the first positioning hole 42K from the opposite side of the tape feeder 16.

[0049] In this embodiment, the reciprocating drive unit 74 is configured to move the adjustment bit 87 forward and backward relative to the first positioning hole 42K. The eccentric pin rotation unit 75 is configured to include an adjustment bit 87 that engages with the first positioning pin 61 from the opposite side of the tape feeder 16 through the first positioning hole 42K, which is a through hole provided in the wall portion 32K extending upward from the base portion 31K of the adjustment device base 71K, and a drive motor 85 as a rotation drive unit for rotating the adjustment bit 87.

[0050] The pin position recognition unit 95 recognizes the lateral position of each feed pin 55 based on the images of the feed pins 55 on the positioning sprocket 53 captured by the camera 77. In this embodiment, the camera 77, which acts as an imaging unit to image the feed pins 55, and the pin position recognition unit 95, which recognizes the lateral position of the feed pins 55 based on the images of the feed pins 55 obtained by the camera 77, constitute a measurement unit 110 that measures the positions of the feed pins 55 on the sprocket 52 (positioning sprocket 53) (Figure 15). The drive motor control unit 96 rotates the adjustment bit 87 around the Y axis by operating the drive motor 85.

[0051] The feeder position recognition unit 97 recognizes the lateral position of the tape feeder 16 based on the lateral positions of the multiple feed pins 55 measured by the measurement unit 110. Here, the "lateral positions of the multiple feed pins 55" can be, for example, the median or average value of the positions of the multiple feed pins measured by the measurement unit.

[0052] When the tape feeder 16 needs to be adjusted in the lateral direction, the representative feed pin determination unit 98 determines one of the multiple feed pins 55 provided on the positioning sprocket 53 as the representative feed pin to be used to confirm the adjustment result. The method by which the representative feed pin determination unit 98 determines the representative feed pin is arbitrary, but it is preferable to use as the representative feed pin the feed pin that corresponds to the median value of the positions of the multiple feed pins 55 measured by the measurement unit 110, or the feed pin that is closest to the average value of the lateral positions of the multiple feed pins 55.

[0053] The displacement direction detection unit 101 detects the displacement direction of the representative feed pin based on the measurement result of the representative feed pin's position by the measurement unit 110 when the first positioning pin 61, which is an eccentric pin, is rotated by the eccentric pin rotation unit 75 (more specifically by the adjustment bit 87). Specifically, the displacement direction detection unit 101 detects the displacement direction in which the representative feed pin is displaced laterally (X direction) when the first positioning pin 61 is rotated by the adjustment bit 87 by a small initial angle Θ1.

[0054] The rotation direction determination unit 102 determines the rotation direction of the adjustment bit 87 (either the first direction or the opposite direction) necessary to bring the representative feed pin closer to the center position of the imaging area SS (the position where the representative feed pin should originally be located), based on the displacement direction of the representative feed pin detected by the displacement direction detection unit 101 when the first positioning pin 61 is rotated by an initial angle Θ1 in one direction using the adjustment bit 87.

[0055] The determination unit 103 determines whether lateral position adjustment of the tape feeder 16 is necessary, based on the lateral position of the tape feeder 16 recognized by the feeder position recognition unit 97.

[0056] The storage unit 104 stores various data, such as data within a predetermined range necessary for the determination unit 103 to perform the above determination. The storage unit 104 also stores the data of the final adjustment results performed by the processing unit 90.

[0057] If the determination unit 103 determines that lateral position adjustment of the tape feeder 16 is necessary, the position adjustment unit 105 rotates the first positioning pin 61, which is an eccentric pin, by an initial angle Θ1 in a predetermined direction using the eccentric pin rotation unit 75, thereby adjusting the lateral position of the tape feeder 16 and confirming the direction of movement of the tape feeder 16. Furthermore, if the position adjustment unit 105 determines that the lateral position of the representative feed pin is not within the predetermined range even after the initial angle Θ1 rotation, and the determination unit 103 determines that further lateral position adjustment of the tape feeder 16 is necessary, it rotates it by a predetermined adjustment angle Θ2. At this time, the direction in which the first positioning pin 61 is rotated is the direction determined by the rotation direction determination unit 102 based on the direction of movement of the tape feeder 16 when the first positioning pin 61 is rotated by the initial angle Θ1. Then, if the lateral position of the representative feed pin is within a predetermined range, the adjustment of the lateral position of the tape feeder 16 (rotation of the first positioning pin 61) is terminated. If the lateral position of the representative feed pin is not within the predetermined range, the adjustment of the lateral position of the tape feeder 16 is continued. In this way, the position adjustment unit 105 determines whether or not to continue adjusting the lateral position of the tape feeder 16 based on the lateral position of the representative feed pin.

[0058] When adjusting the lateral position of the tape feeder 16 mounted on the adjustment device base 71K, the processing unit 90 moves the slide body 73 in the X direction using the table device 72, so that the tip of the adjustment bit 87 provided on the eccentric pin rotation unit 75 faces the first positioning hole 42K of the mounting slot 35K on which the tape feeder 16 to be adjusted is mounted in the Y direction (Figure 13). Once the tip of the adjustment bit 87 faces the first positioning hole 42K, the reciprocating drive unit 74 moves the reciprocating member 81 forward (backward) so that the tip of the adjustment bit 87 is inserted into the first positioning hole 42K (Figure 14). As a result, the tip of the adjustment bit 87 fits into the groove 61M of the first positioning pin 61 inserted into the first positioning hole 42K, and the drive motor control unit 96 operates the drive motor 85 to rotate the output shaft 86, enabling the adjustment bit 87 to rotate the first positioning pin 61.

[0059] As mentioned above, the reciprocating member 81 and the sliding portion 82 are connected by a pressure spring 83. Therefore, when the tip of the adjustment bit 87 is fitted into the groove 61M of the first positioning pin 61, the adjustment bit 87 can be pressed against the first positioning pin 61 with an appropriate amount of pressure. In other words, in this embodiment, the pressure spring 83 acts as a pressurizing part that biases the adjustment bit 87 against the first positioning pin 61, which is an eccentric pin. Note that an air cylinder or the like may be used instead of the pressure spring 83 as the pressurizing part.

[0060] As shown in Figure 15, the processing unit 90 is connected to an input device 111 and an output device 112. The input device 111 consists of, for example, a keyboard or a touch panel, allowing the operator to input necessary information to the processing unit 90. The output device 112 consists of, for example, a monitor, allowing the operator to receive various information output from the processing unit 90.

[0061] Next, the procedure for adjusting the position of the tape feeder 16 using the tape feeder position adjustment device 70 (tape feeder position adjustment method) will be explained using the flowcharts shown in Figures 16 and 17. In Figures 16 and 17, the circled letters "D", "E", "F", and "G" indicate that the flowcharts are connected at the same circled letter. Here, the representative feed pin is set to be determined based on the median value of the lateral positions of each of the multiple feed pins 55 provided on the positioning sprocket 53, as measured by the measurement unit 110.

[0062] In the tape feeder 16 position adjustment operation, the tape feeder 16 is first mounted in each mounting slot 35K of the adjustment device base 71K. When the tape feeder 16 is mounted in the mounting slot 35K, the engaging portion 51K provided at the bottom of the main body 51 is inserted between the feeder guides 41K that make up the mounting slot 35K. As a result, the first positioning pin 61 is inserted into the first positioning hole 42K, and the second positioning pin 62 is inserted into the second positioning hole 43K (Figure 11(a) → Figure 11(b)).

[0063] When the tape feeder 16 is mounted in the mounting slot 35K, the fixed part 64 engages with the mounting hole 44K, and the connector 65 engages with the socket 45K. When the fixed part 64 engages with the mounting hole 44K, the fixed part 64 connects with a fixing part (not shown) provided inside the base 31K, and the tape feeder 16 is fixed to the base 31K. Furthermore, when the connector 65 engages with the socket 45K, the tape feeder 16 is electrically and signal-transmitted to the base 31K (i.e., to the control unit of the tape feeder position adjustment device 70). In addition, the first positioning pin 61, which is the eccentric pin of the tape feeder 16, is inserted into the first positioning hole 42K, which is a through hole provided in each mounting slot 35K, and the second positioning hole 43, which is the non-eccentric pin of the tape feeder 16, is inserted into the second positioning hole 43, which is also a through hole (mounting process).

[0064] After the tape feeder 16 is installed in the mounting slot 35K, the processing unit 90 first identifies the position of the tape feeder 16 on the adjustment device base 71K based on the detection information from the feeder insertion detection unit 91 (step ST1). Once the processing unit 90 has identified the position of the tape feeder 16 on the adjustment device base 71K, it moves the eccentric pin rotation unit 75 to a position where the adjustment bit 87 faces the first positioning hole 42K of the mounting slot 35K in which the tape feeder 16 is installed (step ST2). Then, the camera 77 captures an image of the feed pin 55 located at the highest position of the positioning sprocket 53 of the tape feeder 16 (step ST3), and the measurement unit 110 measures the lateral position of the feed pin 55 (step ST4).

[0065] After measuring the lateral position of the feed pins 55, the processing unit 90 determines whether or not the positioning sprocket 53 of the tape feeder 16 to be adjusted has been rotated one full turn, that is, whether or not the lateral position of all the feed pins 55 on the positioning sprocket 53 has been measured (step ST5). If the positioning sprocket 53 has not been rotated one full turn, the feeder drive control unit 92 rotates the positioning sprocket 53 by one pitch (step ST6), and then returns to step ST3 to repeatedly measure the lateral position of the feed pins 55 (measurement process). On the other hand, if the positioning sprocket 53 has been rotated one full turn in step ST5, the feeder position recognition unit 97 calculates the median value of the lateral position of each of the multiple feed pins 55, assuming that the lateral position of all the feed pins 55 on the positioning sprocket 53 has been measured (step ST7, feeder position recognition process).

[0066] After calculating the median value of the lateral positions of the multiple feed pins 55 in step ST7, the processing unit 90 determines whether the median value of the lateral positions of the multiple feed pins 55 falls within a predetermined range (step ST8, determination step). If the median value falls within the predetermined range, the processing unit 90 determines that the position adjustment of the tape feeder 16 is complete or unnecessary, and stores the adjustment result (that the adjustment has been completed) in the storage unit 104 (step ST9).

[0067] Meanwhile, in step ST8, the processing unit 90 determines that if the median of the lateral positions of the multiple feed pins 55 is not within a predetermined range, then the lateral position adjustment of the tape feeder 16 is necessary, and determines a representative feed pin in the representative feed pin determination unit 98 in order to adjust the position of the tape feeder 16 (step ST10). Then, it rotates the positioning sprocket 53 so that the determined representative feed pin is directly above (highest position) (step ST11), and then images the representative feed pin at the highest position with the camera 77 (step ST12). Finally, it measures the position (initial position) of the imaged representative feed pin (step ST13).

[0068] After the processing unit 90 measures the initial position of the representative feed pin, it activates the forward / backward drive unit 74 to move the adjustment bit 87 forward (backward) (step ST14). Once the tip of the adjustment bit 87 is inserted from the first positioning hole 42K into the groove 61M of the first positioning pin 61 provided by the tape feeder 16 (Figure 13 → Figure 14), the position adjustment unit 105 activates the drive motor 85 to rotate the adjustment bit 87 (i.e., the eccentric first positioning pin 61) by an initial angle Θ1 (step ST15).

[0069] The processing unit 90 rotates the first positioning pin 61 by an initial angle Θ1, then has the camera 77 image a representative feed pin (step ST16), and measures the lateral position of the representative feed pin with the measurement unit 110 (step ST17). Based on the measurement result, the rotation direction determination unit 102 determines the rotation direction of the first positioning pin 61 (determining which direction the first positioning pin 61 should be rotated) (step ST18). For example, if the position of the representative feed pin measured in step ST17 is closer to the center of the predetermined range than in step ST13, the rotation direction is determined to be the same as the direction when it was rotated by the initial angle Θ1; if it is further away, the rotation direction is determined to be the opposite direction.

[0070] After determining the rotation direction of the adjustment bit 87, the processing unit 90 determines whether the lateral position of the representative feed pin measured in step ST17 is within a predetermined range (step ST19). That is, it determines whether the lateral position adjustment of the tape feeder 16 has been completed by rotating the first positioning pin 61 by an initial angle Θ1. If the representative feed pin is within the predetermined range, the position adjustment unit 105 activates the forward / backward drive unit 74 to retract (retract) the adjustment bit 87 (step ST20), and then determines whether a re-check has been set (step ST21). This re-check is a process of repeating the series of steps performed up to that point, and whether or not to perform a re-check can be set by the operator from the input device 111.

[0071] If the processing unit 90 determines in step ST21 that a recheck has not been set, it proceeds directly to step ST9. On the other hand, if it determines that a recheck has been set, it resets the data up to that point (image data obtained from the camera 77, initial displacement data, etc.) (step ST22) and returns to step ST3. If it returns to step ST3 and the previous operation and determination (before the recheck) were correct (the representative feed pin was in the correct predetermined range), it proceeds directly from step ST8 in the recheck process to step ST9.

[0072] In response, if the processing unit 90 determines in step ST19 that the representative feed pin is not located within a predetermined range, it rotates the adjustment bit 87 (i.e., the first positioning pin 61) by an adjustment angle Θ2 from the position adjustment unit 105, thereby displacing the tape feeder 16 laterally and adjusting the lateral position of the tape feeder 16 (step ST23, position adjustment step). Then, after having the camera 77 image the representative feed pin (step ST24), the measurement unit 110 measures the lateral position of the representative feed pin (step ST25).

[0073] After the processing unit 90 measures the lateral position of the representative feed pin, the determination unit 103 determines, based on the measurement result, whether the representative feed pin is located within a predetermined range (step ST26). If the representative feed pin is located within the predetermined range, no further adjustment is necessary, and the position adjustment unit 105 activates the forward / backward drive unit 74 to retract the adjustment bit 87 (step ST20). However, if the representative feed pin is not located within the predetermined range, the processing unit 90 determines whether the cumulative rotation amount (rotation angle) of the first positioning pin 61, which is an eccentric pin, exceeds a predetermined limit value (for example, 180°) (step ST27). As a result, if the cumulative rotation amount of the first positioning pin 61 does not exceed the limit value, the adjustment is continued back to step ST23. If the cumulative rotation amount of the first positioning pin 61 exceeds the limit value, the adjustment cannot be continued further, so the forward / backward drive unit 74 is activated from the position adjustment unit 105 to retract the adjustment bit 87 (step ST28), and the adjustment result (that the adjustment could not be performed) is stored in the storage unit 104 (step ST29).

[0074] After storing the adjustment results in the storage unit 104 in step ST9 or step ST29, the processing unit 90 terminates the position adjustment work on the currently targeted tape feeder 16. Then, it determines whether there are any tape feeders 16 that have not yet been adjusted (i.e., are unadjusted) (step ST30), and if there are any unadjusted tape feeders 16, it returns to step ST2 and continues adjusting the position of the unadjusted tape feeders 16. On the other hand, if there are no unadjusted tape feeders 16 in step ST30, the position adjustment work on the tape feeders 16 is terminated.

[0075] In this embodiment, the measurement unit 110 measures the lateral position of each of the multiple feed pins 55 provided on the positioning sprocket 53 of the tape feeder 16 mounted in the mounting slot 35K, and the feeder position recognition unit 97 recognizes the lateral position of the tape feeder 16 based on the lateral positions of each of the multiple feed pins 55 measured by the measurement unit 110. The determination unit 103 then determines whether lateral position adjustment of the tape feeder 16 is necessary based on the recognized lateral position of the tape feeder 16, and if it is determined that lateral position adjustment of the tape feeder 16 is necessary, the position adjustment unit 105 rotates the first positioning pin 61, which is an eccentric pin, from the opposite side of the tape feeder 16 through the first positioning hole 42K, which is a through hole, using the eccentric pin rotation unit 75, thereby displacing the tape feeder 16 mounted in the mounting slot 35K in the lateral direction and adjusting the lateral position of the tape feeder 16.

[0076] Furthermore, as described above, the representative feed pin determination unit 98 determines one of the multiple feed pins 55 provided by the positioning sprocket 53 as the representative feed pin based on the lateral position of each of the multiple feed pins 55 (for example, determining the representative feed pin based on the lateral position of each of the multiple feed pins 55 measured by the measurement unit 110). The position adjustment unit 105 then adjusts the lateral position of the tape feeder 16 based on the lateral position of the representative feed pin recognized by the pin position recognition unit 95.

[0077] Furthermore, the feeder position recognition unit 97 recognizes the lateral position of the main body 51 based on the median value of the lateral positions of each of the multiple feed pins 55 measured by the measurement unit 110. The measurement unit 110 then sequentially positions each of the multiple feed pins 55 of the positioning sprocket 53 to the measurement position and measures their position, and the feeder position recognition unit 97 recognizes the lateral position of the tape feeder 16 based on the lateral positions of each of the multiple feed pins 55 measured by the measurement unit 110. The position adjustment unit 105 also determines whether to continue adjusting the lateral position of the tape feeder 16 based on the lateral position of the representative feed pin determined by the representative feed pin determination unit 98 (based on whether the lateral position of the representative feed pin is within a predetermined range) (steps ST19 and ST26 described above).

[0078] As described above, the tape feeder position adjustment device 70 (tape feeder position adjustment method) in this embodiment performs lateral positioning of the tape feeder relative to the mounting slot 35K by inserting the first positioning pin 61, which is an eccentric pin, into a through hole (first positioning hole 42K) provided in the mounting slot 35K, measuring the lateral position of the multiple feed pins 55 provided on the positioning sprocket 53, and recognizing the lateral position of the tape feeder 16 based on the measured lateral positions of the multiple feed pins 55. Then, based on the recognized lateral position of the tape feeder, it is determined whether lateral position adjustment of the tape feeder 16 is necessary, and if it is determined that lateral position adjustment of the tape feeder 16 is necessary, the eccentric pin rotation unit 75 rotates the first positioning pin 61 from the opposite side of the tape feeder 16 through the through hole (first positioning hole 42K), thereby displacing the tape feeder 16 mounted in the mounting slot 35K in the lateral direction and adjusting the lateral position of the tape feeder 16. Therefore, according to the tape feeder position adjustment device 70 (tape feeder position adjustment method) in this embodiment, there is no need for the operator to manually operate the eccentric pin (first positioning pin 61) as in the conventional method, and the tape feeder position adjustment work can be performed easily and quickly, thereby significantly reducing the workload of the operator.

[0079] While embodiments of the present invention have been described above, the present invention is not limited to those described above, and various modifications are possible. For example, in the above-described embodiment, the tip portion 61T of the first positioning pin 61, which is an eccentric pin, was provided with a linear ("-") shaped groove portion 61M, but the shape of the groove portion 61M is arbitrary and may be, for example, a cross shape ("+") or the like. [Industrial applicability]

[0080] The present invention provides a tape feeder position adjustment device and a tape feeder position adjustment method that enable easy and rapid adjustment of the tape feeder's position. [Explanation of Symbols]

[0081] 1. Component mounting device 16 Tape Feeders 16K parts outlet 21 Feeder Base 31,31K Daibu 32,32K wall 35,35K Installation slot 41,41K Feeder Guide 42,42K First positioning hole (through hole) 43,43K Second positioning hole 51 Main body 52 Introduction sprocket 53 Positioning sprocket (sprocket) 54 Exhaust sprocket 55 Feed pin 55S Highest position feed pin 56 Tape transport path 61 First positioning pin (eccentric pin) 61M Groove 62 Second positioning pin 70 Tape feeder position adjustment device 71K Adjustment Device Base 72 Table device 74 Reverse drive unit 75 Eccentric pin rotation part 77 Camera (imaging unit) 81 Moving / Retracting Member 83. Compression spring 85 Drive motor 87 Adjustment Bits 95 Pin position recognition unit 97 Feeder position recognition unit 98 Representative feed pin determination unit 101 Displacement direction detection unit 102 Rotation direction determination unit 103 Judgment section 105 Position adjustment section 110 Measurement Unit CT Carrier Tape KH feed hole BH parts

Claims

1. A tape feeder position adjustment device for adjusting the lateral position of a tape feeder, which comprises a main body having a sprocket for transporting a carrier tape forward, and an eccentric pin extending forward from the front end of the main body, the lateral position of the tape feeder intersecting the transport direction of the carrier tape in a horizontal plane, The mounting slot in which the tape feeder is mounted, A through hole is provided in the mounting slot, into which the eccentric pin is inserted to position the tape feeder mounted in the mounting slot in the lateral direction, An eccentric pin rotating unit that rotates the eccentric pin from the opposite side of the tape feeder through the through hole, thereby displacing the tape feeder mounted in the mounting slot in the lateral direction, A measuring unit that measures the positions of multiple feed pins provided on the sprocket, A feeder position recognition unit recognizes the lateral position of the tape feeder based on the positions of the plurality of feed pins measured by the measurement unit, A determination unit determines whether or not adjustment of the tape feeder's lateral position is necessary, based on the lateral position of the tape feeder recognized by the feeder position recognition unit. If the determination unit determines that the lateral position adjustment of the tape feeder is necessary, the position adjustment unit rotates the eccentric pin using the eccentric pin rotation unit to adjust the lateral position of the tape feeder. A tape feeder position adjustment device equipped with [a specific feature].

2. The tape feeder position adjustment device according to claim 1, wherein the measuring unit sequentially positions the plurality of feed pins at the measurement position and measures their position, and the feeder position recognition unit recognizes the lateral position of the tape feeder based on the positions of the plurality of feed pins measured by the measuring unit.

3. The tape feeder position adjustment device according to claim 1 or 2, further comprising: an imaging unit for imaging the plurality of feed pins; and a pin recognition unit for recognizing the lateral position of the plurality of feed pins based on the images of the plurality of feed pins obtained by imaging by the imaging unit.

4. The tape feeder position adjustment device according to claim 1, wherein the feeder position recognition unit recognizes the lateral position of the tape feeder based on the median or average value of the positions of the plurality of feed pins measured by the measurement unit.

5. The tape feeder position adjustment device according to claim 1, comprising a representative feed pin determination unit that determines one of the plurality of feed pins provided by the sprocket as a representative feed pin, the representative feed pin determination unit determines the representative feed pin based on the median or average value of the positions of the plurality of feed pins measured by the measurement unit, and the feeder position recognition unit recognizes the lateral position of the tape feeder based on the position of the representative feed pin determined by the representative feed pin determination unit.

6. The tape feeder position adjustment device according to claim 5, wherein the position adjustment unit determines whether or not to continue adjusting the lateral position of the tape feeder based on the lateral position of the representative feed pin.

7. A tape feeder position adjustment method for adjusting the lateral position of a tape feeder, which comprises a main body having a sprocket for transporting a carrier tape forward, and an eccentric pin extending forward from the front end of the main body, the lateral position intersecting the transport direction of the carrier tape in a horizontal plane, wherein the tape feeder is provided with the main body having a sprocket for transporting a carrier tape forward, A mounting step comprising inserting the eccentric pin into a through hole provided in the mounting slot where the tape feeder is mounted, thereby mounting the tape feeder in the mounting slot and positioning the tape feeder laterally in the through hole, A measurement step in which, with the tape feeder mounted in the mounting slot during the mounting step, the lateral position of the plurality of feed pins provided on the sprocket is measured, A feeder position recognition step that recognizes the lateral position of the tape feeder based on the lateral positions of the plurality of feed pins measured in the measurement step, A determination step, based on the lateral position of the tape feeder recognized in the feeder position recognition step, determines whether or not adjustment of the lateral position of the tape feeder is necessary. If the determination step determines that the lateral position adjustment of the tape feeder is necessary, the position adjustment step involves rotating the eccentric pin from the opposite side of the tape feeder through the through hole using the eccentric pin rotating part, thereby displacing the tape feeder in the lateral direction and adjusting the lateral position of the tape feeder. A tape feeder position adjustment method including the following.

Images