CN116636322A

CN116636322A - Component mounting apparatus and method of correcting posture of terminal

Info

Publication number: CN116636322A
Application number: CN202180086039.8A
Authority: CN
Inventors: 迟晓东
Original assignee: Fuji Corp
Current assignee: Fuji Corp
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2023-08-22
Also published as: DE112021006862T5; WO2022157884A1; JPWO2022157884A1

Abstract

A component mounting device is provided with: a substrate conveyance holding device that conveys a circuit substrate in a horizontal direction and fixedly holds the circuit substrate; a work head for holding an electrical component having a plurality of terminals and mounting the electrical component on a circuit board; and a terminal straightening device having a straightening tool into which the plurality of terminals are inserted, wherein the plurality of terminals are straightened by moving the straightening tool into which the plurality of terminals are inserted in a horizontal direction and in a direction orthogonal to a direction in which the circuit board is conveyed. A method is provided with: an insertion step of inserting a plurality of terminals of the electrical component held by the work head into the correction tool from above; and a pressing step of pressing the electric component, in which the plurality of terminals of the electric component are inserted into the correction tool by the insertion step, from above, and correcting the posture of the plurality of terminals provided in the electric component by moving at least one of the correction tool and the electric component in the horizontal direction in a state in which the electric component is pressed by the pressing step.

Description

Component mounting apparatus and method of correcting posture of terminal

Technical Field

The present invention relates to a component mounting device and the like including a terminal correction device for correcting a plurality of terminals of an electrical component.

Background

The following patent documents describe techniques for correcting terminals of an electrical element.

Prior art literature

Patent literature

Patent document 1: japanese Kokai publication Hei-1-50050

Patent document 2: international publication No. 2014/38087

Disclosure of Invention

Problems to be solved by the invention

In the present specification, an object is to appropriately correct a plurality of terminals of an electrical component.

Means for solving the problems

In order to solve the above problems, the present specification discloses a component mounting apparatus including: a substrate conveyance holding device that conveys a circuit substrate in a horizontal direction and fixedly holds the circuit substrate; a work head for holding an electric component having a plurality of terminals and assembling the electric component to the circuit board; and a terminal straightening device having a straightening tool into which the plurality of terminals are inserted, wherein the plurality of terminals are straightened by moving the straightening tool into which the plurality of terminals are inserted in the horizontal direction in a direction orthogonal to the direction in which the circuit board is conveyed.

In order to solve the above problems, the present specification discloses a method comprising: an insertion step of inserting a plurality of terminals of the electrical component held by the work head into the correction tool from above; and a pressing step of pressing the electric component, in which the plurality of terminals of the electric component are inserted into the correction tool by the inserting step, from above, and correcting the posture of the plurality of terminals provided in the electric component by moving at least one of the correction tool and the electric component in a horizontal direction in a state in which the electric component is pressed by the pressing step.

Effects of the invention

According to the present disclosure, the plurality of terminals of the electrical component can be properly corrected by the correction tool into which the plurality of terminals are inserted.

Drawings

Fig. 1 is a perspective view showing a component mounting apparatus.

Fig. 2 is a plan view showing the component mounting apparatus.

Fig. 3 is a perspective view showing a component mounting apparatus of the component mounting apparatus.

Fig. 4 is a perspective view showing the element holder.

Fig. 5 is a diagram showing a pin element when assembled to a circuit substrate.

Fig. 6 is a diagram showing a pin element when assembled to a circuit substrate.

Fig. 7 is a perspective view of a pin correction device.

Fig. 8 is a perspective view of a pin straightening mechanism.

Fig. 9 is a perspective view of the pin straightening mechanism with the cover and clamping mechanism removed.

Fig. 10 is an enlarged perspective view of the slide mechanism.

Fig. 11 is an enlarged perspective view of the clamping mechanism.

Fig. 12 is an enlarged front view of the clamping mechanism.

Fig. 13 is an operation diagram of the pin straightening device when straightening pins.

Fig. 14 is an operation diagram of the pin straightening device when straightening pins.

Fig. 15 is an operation diagram of the pin straightening device when straightening pins.

Fig. 16 is an operation diagram of the pin straightening device when straightening pins.

Fig. 17 is a view showing various covers.

Fig. 18 is a diagram showing various correction plates.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as modes for carrying out the present invention.

Fig. 1 and 2 show a component mounting apparatus 10. Fig. 1 is a perspective view of the component mounting apparatus 10, and fig. 2 is a plan view of the component mounting apparatus 10 from above, with a cover or the like removed. The component mounting apparatus 10 is an apparatus for performing a mounting operation of a component with respect to the circuit substrate 12. The component mounting apparatus 10 includes an apparatus main body 20, a substrate transport and holding apparatus 22, a component mounting apparatus 24, imaging apparatuses 26 and 28, a bulk component supply apparatus 30, and a component supply apparatus 32. The circuit substrate 12 may be a circuit board, a three-dimensional substrate, or the like, and the circuit substrate may be a printed wiring board, a printed circuit board, or the like.

The apparatus main body 20 is constituted by a frame 40 and a beam 42 erected on the frame 40. The substrate transport and holding device 22 is disposed at the center of the frame 40 in the front-rear direction, and includes a transport device 50 and a clamping device 52. The conveyance device 50 is a device for conveying the circuit substrate 12, and includes a conveyor 56 in a pair of conveyance paths extending in a straight line in the horizontal direction. The circuit substrate 12 supported by the pair of conveyor belts 56 is conveyed in the horizontal direction by the conveying device 50. Further, the clamping device 52 fixedly holds the circuit substrate 12 conveyed to a predetermined position by the conveying device 50. In the following description, the extending direction of the pair of conveyor belts 56, that is, the conveying direction of the circuit substrate 12 is referred to as the X direction. The horizontal direction perpendicular to the X direction is referred to as the Y direction, and the vertical direction is referred to as the Z direction. That is, the width direction of the component mounting apparatus 10 is the X direction, and the front-rear direction is the Y direction.

The component mounting device 24 is disposed on the beam 42, and includes two work heads 60 and 62 and a work head moving device 64. As shown in fig. 3, a component holder 66 is provided on the lower end face of each work head 60, 62. The element holder 66 is a so-called collet, and as shown in fig. 4, includes a main body 67, a pair of holding claws 68, and a pressing member 69. The pair of holding claws 68 are disposed so as to extend downward from the lower surface of the main body 67 and slide linearly so as to approach/separate from each other. The pressing tool 69 is held between the pair of holding claws 68 by the main body 67 so as to be vertically movable. Thus, the element holder 66 brings the pair of holding claws 68 closer to each other, thereby holding the element by the pair of holding claws 68. The element holder 66 separates the pair of holding claws 68, thereby separating the element from the space between the pair of holding claws 68. Further, by lowering the pressing tool 69, the element separated from between the pair of holding claws 68 is pressed downward.

As shown in fig. 3, the work head moving device 64 includes an X-direction moving device 70, a Y-direction moving device 72, and a Z-direction moving device 73. The two work heads 60 and 62 are integrally moved to any position on the frame 40 by the X-direction moving device 70 and the Y-direction moving device 72. The work heads 60 and 62 are attached to the sliders 74 and 76 so that the work heads can be detached by one touch without using a tool, and the z-direction moving device 73 moves the sliders 74 and 76 individually in the up-down direction. That is, the work heads 60 and 62 are individually moved in the up-down direction by the Z-direction moving device 73.

The imaging device 26 is mounted on the slider 74 so as to face downward on the vertical axis, and moves in the X direction, the Y direction, and the Z direction together with the work head 60. Thereby, the photographing device 26 photographs an arbitrary position on the frame 40. As shown in fig. 1 and 2, the imaging device 28 is disposed between the substrate transport and holding device 22 and the component supply device 32 on the frame 40 in a state of being directed upward on the plumb line. Thereby, the imaging device 28 images the components held by the component holders 66 of the work heads 60, 62. In addition, the photographing devices 26, 28 are two-dimensional cameras, and photograph two-dimensional images.

The bulk component supply device 30 is disposed at one end portion of the frame 40 in the front-rear direction. The bulk component supply device 32 is a device for aligning a plurality of components scattered and supplying the components in the aligned state. That is, the present invention provides a device in which a plurality of elements in any posture are aligned in a predetermined posture and supplied to the elements in the predetermined posture.

The component supply device 32 is disposed at the other end portion of the frame 40 in the front-rear direction. The component feeder 30 includes a tray-type component feeder 78 and a feeder-type component feeder 80. The tray type component supply device 78 is a device for supplying components in a state of being placed on the tray 81. The feeder type component feeder 80 is a device for feeding components by a tape feeder 82. The tape feeder 82 cuts out the lead elements from the element tape, for example, and supplies the cut-out lead elements, and a guide rail (not shown) is disposed on the lower surface of the tape feeder 82. The guide rail of the tape feeder 82 is fitted into a slot 88 formed in the upper surface of a feeder holder 86 fixedly provided at the other end of the frame 40, and the tape feeder 82 is positioned and attached to the slot 88 of the feeder holder 86 so that an operator can perform one-touch attachment and detachment without using a tool. A connector (not shown) is disposed on the front end surface of the tape feeder 82, and the tape feeder 82 is mounted on the feeder holder 86, so that the connector is connected to a connector connecting portion (not shown) formed on the feeder holder 86. Thus, the tape feeder 82 is electrically connected to the component mounting apparatus 10, and power is supplied to the tape feeder 82. A plurality of slots 88 are formed in the feeder holding base 86, and the tape feeder 82 is mounted in any slot 88 among the plurality of slots 88. Further, the upper surface of the feeder holding table 86 is a horizontal surface, and a slot 88 is formed in the upper surface so as to extend in the Y direction, and the tape feeder 82 is mounted in the slot 88 so that the tape feeder 82 is mounted on the feeder holding table 86 in a posture extending in the Y direction.

In the component mounting apparatus 10, with the above-described configuration, the component mounting operation is performed on the circuit substrate 12 held by the substrate conveyance holding device 22. In the component mounting apparatus 10, various components can be mounted on the circuit substrate 12, but a case where a pin component (see fig. 5) 100 is mounted on the circuit substrate 12 will be described below.

Specifically, the circuit substrate 12 is conveyed to the working position by the conveying device 50, and is fixedly held at this position by the clamping device 52. Next, the photographing device 26 is moved to above the circuit substrate 12 to photograph the circuit substrate 12. Thus, information on the positions of the pair of through holes 102 (see fig. 5) formed in the circuit substrate 12 is obtained. Further, the bulk component feeder 30 or the component feeder 32 feeds the pin component 100 at a predetermined feeding position. As shown in fig. 5, the lead element 100 includes a substantially block-shaped element body 106 and two leads 108 extending in the same direction from the bottom surface of the element body 106. That is, the pin element 100 is a so-called radial pin element.

Then, either one of the work heads 60 and 62 is moved above the component supply position, and the pair of gripping claws 68 of the component holder 66 grip the component body 106 of the pin component 100, so that the pin component 100 is held by the component holder 66. Next, the work heads 60 and 62 holding the lead element 100 are moved to the upper side of the imaging device 28, and the imaging device 28 images the lead element 100 held by the element holder 66. Thereby, information on the tip positions of the pair of pins 108 is obtained. Next, the work heads 60 and 62 holding the lead element 100 are moved to the upper side of the circuit substrate 12, and the holding posture of the held element is adjusted based on information and the like related to the position of the through hole 102 formed in the circuit substrate 12 and the tip position of the lead 108 of the lead element 100 held by the element holder 66. At this time, the movement of the work heads 60 and 62 and the adjustment of the holding posture are performed so that the positions of the pair of through holes 102 formed in the circuit substrate 12 coincide with the tip positions of the pair of pins 108 of the pin element 100 held by the element holder 66 in the vertical direction.

When the work heads 60 and 62 are moved so that the positions of the pair of through holes 102 and the positions of the tips of the pair of pins 108 coincide in the vertical direction, the work heads 60 and 62 are lowered. Thus, as shown in fig. 5, the tip ends of the pair of lead elements 100 of the lead element 100 are inserted into the pair of through holes 102 of the circuit substrate 12. Then, the pair of holding claws 68 of the element holder 66 are separated from each other, and the pushing member 69 is lowered after the pin element 100 is held. Thus, the pressing tool 69 contacts the upper surface of the element body 106 of the lead element 100, presses the lead element 100 downward, and inserts the pair of leads 108 of the lead element 100 into the pair of through holes 102 until the root portions thereof. In this way, in the component mounting apparatus 10, the pair of pins 108 of the pin element 100 are inserted into the pair of through holes 102 of the circuit substrate 12, whereby the pin element 100 is mounted on the circuit substrate 12.

However, the leads 108 of the lead element 100 may be bent obliquely during the manufacturing process, when they are set in the tape feeder 82, when they are cut from the element braid in the tape feeder 82, or the like. In this case, as shown in fig. 6, the interval between the tips of the pair of pins 108 of the pin element 100 is different from the interval between the pair of through holes 102 of the circuit substrate 12, and there is a concern that the pair of pins 108 cannot be inserted into the pair of through holes 102. In the lead element 100 shown in fig. 6, the distal ends of the pair of leads are bent obliquely in directions away from each other to form an octagon shape.

In view of such a situation, in the component mounting apparatus 10, a pin correction device for correcting the posture of the pair of pins 108 of the pin component 100 is mounted on the feeder holding table 86 for mounting the tape feeder 82. Specifically, as shown in fig. 7, the pin correction device 110 includes a housing 112 and a pin correction mechanism 114. The housing 112 has substantially the same shape as the housing of the tape feeder 82, and a rail (not shown) having the same shape as the rail disposed on the lower surface of the tape feeder 82 is disposed on the lower surface of the housing 112. Accordingly, by fitting the guide rail disposed on the lower surface of the housing 112 into the slot 88 of the feeder holding base 86, the pin correction device 110 can be positioned and attached to the slot 88 of the feeder holding base 86 by one touch without using a tool. That is, by fitting the pin correction device 110 to the slot 88, the pin correction device 110 is fitted to the feeder holding base 86 in a posture extending in the Y direction, similarly to the tape feeder 82. Further, a connector 116 having the same shape as the connector of the tape feeder 82 is disposed on the front end surface of the housing 112, and the pin correction device 110 is mounted on the feeder holding base 86, so that the connector 116 is connected to a connector connecting portion formed on the feeder holding base 86. Thus, the pin correction device 110 is electrically connected to the component mounting device 10, and power for operating the pin correction device 110 is supplied thereto.

The upper end surface of the case 112 is opened, and the pin straightening mechanism 114 is incorporated in the upper end portion of the case 112 in a state where the upper end surface of the pin straightening mechanism 114 is exposed from the opening. As shown in fig. 8, the pin straightening mechanism 114 has a base 120, a support base 122, a slide mechanism 124, a clamping mechanism 126, and a cover 128. The base 120 is substantially rectangular plate-shaped, and is disposed in a posture extending in the Y direction. The support table 122 is substantially table-shaped and is fixed to the upper surface of the base 120.

As shown in fig. 9, the slide mechanism 124 includes a piston 130, a slide body 132, and a correction plate 134 that operate by air. In fig. 9, the clamp mechanism 126 and the cover 128 are omitted to ensure visibility of the slide mechanism 124. The slider 132 is substantially rectangular plate-shaped and is disposed on the upper surface of the support base 122 in a posture extending in the Y direction. The upper surface of the slider 132 is a horizontal surface. A rail 136 is disposed on the upper surface of the support base 122 so as to extend in the Y direction, and the slider 132 is supported by the rail 136 so as to be slidable in the Y direction. The piston 130 is disposed at the rear side of the slider 132 in a posture extending in the Y direction, and the front end of the piston rod 138 of the piston 130 is coupled to the slider 132 via the bracket 140. Thus, the piston 130 is operated, and the slider 132 slides in the Y direction on the upper surface of the support 122. Further, the correction plate 134 is fastened to the upper surface of the slider 132 by bolts, and as shown in fig. 10, a plurality of through holes 146 penetrating in the vertical direction are formed in the correction plate 134.

As shown in fig. 11 and 12, the clamp mechanism 126 is composed of a piston 150 that operates by air, a coupling mechanism 152, a pair of support legs 154, a pair of movable clamps 156, and a pair of fixed clamps 158. In fig. 11 and 12, the cover 128 is omitted to ensure visibility of the clamp mechanism 126. The piston 150 is disposed below the base 120 in a posture extending in the up-down direction with a piston rod (not shown) facing upward. The coupling mechanism 152 is constituted by a pair of arms (only one arm is illustrated in the figure) 160 and a pair of support blocks (only one support block is illustrated in the figure) 162. The base 120 has a through hole 164 penetrating in the vertical direction, and the arm 160 extends in the vertical direction of the base 120 through the through hole 164. The arm 160 is bent in a substantially v-shape, and the bent portion of the arm 160 is held swingably along the base 120 by a shaft 166 extending in the Y direction. A guide rail 168 is disposed on the upper surface of the base 120 so as to extend in the X direction, and the pair of support blocks 162 are supported by the guide rail 168 so as to be slidable in the X direction. The upper ends of the pair of arms 160 are coupled to a pair of support blocks 162. The lower ends of the pair of arms 160 are coupled to the piston rod of the piston 150 via a bracket 170.

With this structure, in the coupling mechanism 152, when the piston 150 is extended, the bracket 170 is lifted, and the lower ends of the pair of arms 160 are lifted. At this time, the pair of arms 160 swing around the shafts 166, respectively, so that the upper ends of the pair of arms 160 approach each other. At this time, the pair of support blocks 162 coupled to the upper ends of the pair of arms 160 slide in directions approaching each other. On the other hand, when the piston 150 is contracted, the bracket 170 is lowered, and the lower ends of the pair of arms 160 are also lowered. At this time, the pair of arms 160 swing about the shafts 166, respectively, so that the upper ends of the pair of arms 160 are separated from each other. At this time, the pair of support blocks 162 coupled to the upper ends of the pair of arms 160 slide in directions separating from each other.

A pair of notches (only one notch is shown in the figure) 172 are formed at both edges of the support base 122 in the X direction, and the upper ends of the pair of support blocks 162 extend above the support base 122 through the pair of notches 172. In addition, the upper ends of the pair of support blocks 162 extend slightly above the upper surface of the correction plate 134 of the slide mechanism 124. Further, a pair of movable holders 156 is fixed to upper surfaces of a pair of support blocks 162 extending above the support base 122. Further, a pair of support legs 154 stand on the upper surface of the support base 122 so as to sandwich a pair of support blocks 162 extending above the support base 122. In addition, the upper ends of the pair of support legs 154 are located at approximately the same height as the upper surfaces of the pair of movable clamps 156. The pair of fixed clamps 158 are held by the pair of support legs 154 between the pair of movable clamps 156 so as to face the pair of movable clamps 156.

With this structure, in the clamp mechanism 126, the piston 150 is extended, and the pair of support blocks 162 are slid in the directions approaching each other, so that the pair of movable clamps 156 approaches the pair of fixed clamps 158 above the correction plate 134 of the slide mechanism 124, as shown in fig. 11. On the other hand, the piston 150 is contracted, and the pair of support blocks 162 is slid in a direction to separate from each other, so that the pair of movable clips 156 is separated from the pair of fixed clips 158 above the correction plate 134 of the slide mechanism 124, as shown in fig. 12. Grooves 176, 178 corresponding to the wire diameters of the pins 108 are formed on the surfaces of the movable clip 156 and the fixed clip 158 facing each other so as to extend in the up-down direction. Further, by the movable clamp 156 approaching the fixed clamp 158, as will be described in detail later, the pins 108 are clamped in the grooves 176 formed in the movable clamp 156 and the grooves 178 formed in the fixed clamp 158. The grooves 176 and 178 are formed in the movable clamp 156 and the fixed clamp 158 so as to be located above the through hole 146 of the correction plate 134 in a state where the movable clamp 156 approaches the fixed clamp 158 and clamps the pins.

As shown in fig. 8, the cover 128 is substantially plate-shaped and is fastened to the upper ends of the pair of support legs 154 by bolts. A plurality of insertion holes 180 penetrating in the up-down direction are formed in the cover 128 so as to coincide with the plurality of through holes 146 of the correction plate 134 of the slide mechanism 124 in the up-down direction. The inner diameter of the insertion hole 180 is larger than the inner diameter of the through hole 102 formed in the circuit substrate 12, and as shown in fig. 15, a pair of pins 108 bent to an oblique degree can be inserted into the pair of insertion holes 180.

In the pin correction device 110 having such a structure, the pair of pins 108 of the pin element 100 held by the element holder 66 are inserted into the pair of insertion holes 180 of the cover 128, and the pair of pins 108 are held by the clamp mechanism 126. The distal ends of the pair of pins 108 held by the clamp mechanism 126 are inserted into the through holes 146 of the straightening plate 134 of the slide mechanism 124, and the straightening plate 134 is moved by the operation of the piston 130, thereby straightening the posture of the pair of pins 108.

Specifically, when the pin element 100 is gripped by the pair of gripping claws 68 of the element holder 66, the work heads 60 and 62 are moved to above the pin correction device 110 mounted in the slot 88 of the feeder holding base 86. Then, the pair of pins 108 of the pin element 100 are inserted into the pair of insertion holes 180 corresponding to the pair of pins of the pin element among the plurality of insertion holes 180 formed in the cover 128 of the pin straightening mechanism 114 of the pin straightening device 110 by lowering the work heads 60 and 62. At this time, in the clamping mechanism 126 of the pin correction mechanism 114, the piston 150 contracts, and as shown in fig. 13, the pair of movable clamps 156 is separated from the pair of fixed clamps 158. In a state where the pair of pins 108 of the pin element 100 are inserted into the pair of insertion holes 180, the pair of holding claws 68 are separated, and the holding of the pin element 100 by the element holder 66 is released, so that the pressing piece 69 of the element holder 66 is lowered. Thus, the pin element 100 is pushed from above to below by the pushing member 69, and the pair of pins 108 are inserted into the pair of insertion holes 180 until the root portions are reached as shown in fig. 13. At this time, the distal ends of the pair of pins 108 are inserted into the pair of through holes 146 of the correction plate 134 located below the pair of insertion holes 180 through between the movable clamp 156 and the fixed clamp 158. Further, the pin element 100 is pressed downward by the pressing member 69 from the pair of pins 108 to the root portion thereof and inserted into the pair of insertion holes 180. That is, the pin element 100 is maintained in a state pressed by the pressing member 69 even when the pin element is inserted into the pair of insertion holes 180 from the pair of pins 108 to the root portion.

When the pair of pins 108 are inserted into the pair of insertion holes 180 until the root portions thereof, the piston 150 is operated to extend, and the pair of movable clips 156 approaches the pair of fixed clips 158 as shown in fig. 14. Thus, the pair of pins 108 are held by the slots 176 of the movable clamp 156 and the slots 178 of the fixed clamp 158, respectively. That is, the pair of pins 108 are fixedly held by the clamping mechanism 126. In addition, the buckling position of the pin when the pin 108 is bent obliquely is estimated statistically in advance, and the heights of the movable clamp 156 and the fixed clamp 158 are set so that the position where the pin is clamped by the movable clamp 156 and the fixed clamp 158 becomes the buckling position of the pin. That is, for example, if the bending position of the lead is estimated to be 5mm from the root of the lead when the lead 108 is bent obliquely, the lead leveling mechanism 114 is designed such that the movable clip 156 and the fixed clip 158 are located 5mm below the upper surface of the cover 128. Thus, in the pin straightening mechanism 114, the pin inserted into the insertion hole 180 is clamped by the clamping mechanism 126 at the buckling position of the pin. In addition, even when the pin is clamped by the clamping mechanism 126, the pin element 100 is maintained in a state pressed by the pressing piece 69. Thus, the pair of pins can be appropriately clamped by the clamping mechanism 126.

When the pair of pins 108 inserted into the pair of insertion holes 180 are clamped by the clamping mechanism 126, the piston 130 is operated in the slide mechanism 124, and the correction plate 134 slides. At this time, the correction plate 134 slides in one direction in the Y direction, for example, in the direction of the arrow in fig. 15. The amount of expansion and contraction of the piston 130, that is, the amount of sliding of the correction plate 134 in one direction in the Y direction at this time is set as: the inner wall surface of the through hole 146 into which the lead 108 is inserted is slightly passed under the grooves 176 and 178 of the movable holder 156 and the fixed holder 158 which clamp the lead 108. By setting the slippage of the correction plate 134 in this manner, one of the pair of pins 108 is corrected to be linear in the pin 108 a.

Specifically, the pair of pins 108 inserted into the pair of through holes 146 of the correction plate 134 are bent in a splayed manner as shown in fig. 14 by the pushing members 69 pushed into the element holder 66. That is, the front ends of the pair of pins 108 are bent so as to be separated from each other toward the outside. Then, by sliding the correction plate 134 in the Y direction as shown in fig. 15, one of the pair of pins 108 is brought into contact with the inner wall surface defining the through hole 146, and is slightly bent in a direction approaching the other pin 108 b. That is, the pin 108a bent outward is slightly bent inward by being in contact with the inner wall surface defining the through hole 146. However, since the inward bending amount of the lead 108a is very small, the lead 108a is substantially linearly corrected. As described above, the Y direction in which the correction plate 134 moves is a horizontal direction perpendicular to the X direction, which is a direction in which the circuit substrate 12 is conveyed by the substrate conveyance holder 22. Therefore, the correction plate 134 moves in the horizontal direction and in the direction orthogonal to the X direction, which is the direction in which the circuit substrate 12 is conveyed by the substrate conveyance holder 22.

Next, after the correction plate 134 is slid in one direction (the direction of the arrow in fig. 15) in the Y direction by the operation of the piston 130, the correction plate 134 is slid in the other direction in the Y direction, that is, in the direction of the arrow in fig. 16. The amount of expansion and contraction of the piston 130, that is, the amount of sliding of the correction plate 134 in the other direction in the Y direction at this time is set as: the inner wall surface of the through hole 146 into which the lead 108 is inserted is slightly passed under the grooves 176 and 178 of the movable holder 156 and the fixed holder 158 which clamp the lead 108. By setting the slippage of the correction plate 134 in this manner, the other pin 108b of the pair of pins 108 is corrected to be linear.

Specifically, although the other lead 108b of the pair of leads 108 is bent outward at first, the other lead 108b is slightly bent in a direction approaching the one lead 108a by being in contact with the inner wall surface defining the through hole 146. That is, the pin 108b bent outward is slightly bent inward by contact with the inner wall surface defining the through hole 146. However, since the inward bending amount of the lead 108b is very small, the lead 108b is substantially linearly corrected. When the straightening plate 134 slides in the direction of the arrow in fig. 15, the leg 108a straightened to be straight is brought into contact with the inner wall surface defining the through hole 146 by sliding the straightening plate 134 in the direction of the arrow in fig. 16, and is bent outward, but the amount of bending of the leg 108a outward is extremely small, so that the leg 108a is maintained to be substantially straight.

In this way, in the pin straightening device 110, the straightening plate 134 is reciprocated once by the operation of the piston 130, that is, one piston 130 is extended and contracted once without using a plurality of driving sources, so that the posture of the pair of pins 108 is straightened, and the pair of pins 108 are formed in a substantially straight line shape. In addition, even when the posture of the pair of pins 108 is corrected by the operation of the piston 130, the state in which the pin element 100 is pressed by the pressing piece 69 is maintained. Thus, the posture of the pair of pins 108 can be properly corrected by the sliding of the correction plate 134. That is, the pair of pins are clamped by the clamping mechanism 126 and the pin element 100 is pressed toward the cover 128, so that the pin can be properly corrected by preventing positional deviation of the pin element when the pins are corrected.

When the correction of the pin by the sliding of the correction plate 134 is completed, first, the pushing of the pin element by the pushing piece 69 of the element holder 66 is released, and the element body 106 of the pin element is gripped by the pair of gripping claws 68. Then, in the clamping mechanism 126, the piston 150 is extended, and the pair of movable clamps 156 is separated from the pair of fixed clamps 158, so that the clamping of the pair of pins 108 by the clamping mechanism 126 is released. Thus, the straightening work of the pins in the pin straightening device 110 is completed, and the mounting work of the pin element with the completed straightening of the pins is performed.

In the pin straightening device 110, the cap 128, the straightening plate 134, and the like can be replaced according to the types of the pin elements, and pins of a plurality of pin elements can be straightened. In detail, as described above, the cover 128 is fastened to the upper ends of the pair of support legs 154 by bolts. As shown in fig. 17, a plurality of types of caps 128a and 128b are prepared, and a plurality of types of insertion holes 180a and 180b are formed in each of the plurality of types of caps 128a and 128b according to positions, numbers, diameters, and the like of pins of the plurality of types of pin elements. Accordingly, from among the above-described various covers 128a and 128b, a cover bolt corresponding to a pin element (hereinafter, referred to as "target element") to be pin-corrected by the pin correction device 110 is fastened to the pair of support pins 154. As described above, the correction plate 134 is fastened to the slider 132 by bolts, and as shown in fig. 18, a plurality of kinds of correction plates 134a and 134b are prepared. In each of the correction plates 134a and 134b, a plurality of through holes 146a and 146b are formed at positions corresponding to the plurality of insertion holes 180a and 180b formed in the covers 128a and 128 b. Specifically, the correction plate 134a has a plurality of through holes 146a formed at positions corresponding to the plurality of insertion holes 180a formed in the cover 128a, and the correction plate 134b has a plurality of through holes 146b formed at positions corresponding to the plurality of insertion holes 180b formed in the cover 128 b. That is, the cover 128a corresponds to the correction plate 134a, and the cover 128b corresponds to the correction plate 134b. Accordingly, when the cover 128a is attached to the pair of support legs 154, the correction plate 134a is attached to the slider 132, and when the cover 128b is attached to the pair of support legs 154, the correction plate 134b is attached to the slider 132. Thus, in the pin straightening device 110, pins of a plurality of pin elements can be straightened.

In addition, the component mounting apparatus 10 is an example of a component mounting apparatus. The circuit substrate 12 is an example of a circuit substrate. The substrate transfer holder 22 is an example of a substrate transfer holder. The work heads 60, 62 are one example of a work head. The tape feeder 82 is an example of a feeder. The feeder holding table 86 is an example of a device table. Pin element 100 is one example of an electrical element. Pin 108 is one example of a terminal. Pin straightener 110 is one example of a terminal straightener. The orthotic plate 134 is one example of an orthotic tool.

The present invention is not limited to the above-described embodiments, and can be implemented in various ways, in which various modifications and improvements are made based on the knowledge of those skilled in the art. For example, in the above-described embodiment, the pins of the pin element 100, specifically, the radial pin element are straightened by the pin straightening device 110, but the pins of various pin elements, for example, the axial pin element may be straightened. The pin-shaped terminal, the protrusion of the terminal shape which is not electrically connected to the circuit board, or the like may be corrected by the correction device, as long as the pin is not limited to the pin of the pin element.

In the above embodiment, the correction is performed by bringing the pins into contact with the inner wall surfaces of the through holes 146 formed in the correction plate 134, but the correction may be performed by bringing the pins into contact with the inner wall surfaces of bottomed holes, i.e., non-through concave portions. Further, the pin may be corrected by being brought into contact with an outer wall surface of the convex portion, the wall, or the like.

In the above embodiment, the pins clamped by the clamping mechanism 126 are straightened by moving the straightening plate 134, but the pins may be straightened by moving the clamping mechanism 126 that holds the straightening plate 134 and clamps the pins. Further, the pins may be straightened by moving the clamping mechanism 126 clamping the pins relative to the straightening plate 134.

In the above-described embodiment, the pins are straightened in a state in which the pins are clamped by the clamping mechanism 126, but the pins may be straightened in a state in which the pin elements are held by the element holder 66 without clamping the pins by the clamping mechanism 126. At this time, the pins may be corrected by moving the correction plate 134 with respect to the pin elements held by the element holder 66, or by moving the pin elements held by the element holder 66 with respect to the fixed correction plate 134. Further, the pins may be straightened by relatively moving the straightening plate 134 and the pin elements held by the element holder 66.

In addition, in the above-described embodiment, the pins are straightened by once reciprocating the straightening plate 134, but the pins may be straightened by repeatedly reciprocating the straightening plate 134. Further, the pins may be corrected by moving only in the direction of one side without reciprocating the correction plate 134.

In addition, in the above-described embodiment, the pins are corrected by moving the correction plate 134 in the Y direction, but the pins may also be corrected by moving the correction plate 134 in the X direction. In the case of straightening pins by using the pin straightening device in which the straightening plate 134 is moved in one direction, pins may be straightened in two directions by inserting pins into the pin straightening device a plurality of times in a state in which the angle of the pins into which the pin elements are inserted is changed by 90 degrees. The pins may be corrected by moving the correction plate 134 in directions orthogonal to each other, for example, in the X direction and the Y direction. At this time, the correction plate 134 may be reciprocated in each of the X direction and the Y direction, or the correction plate 134 may be moved in the direction on one side in the X direction and the direction on one side in the Y direction.

In the above-described embodiment, the pins are corrected in a state in which the element body of the pin element is pressed downward by the pressing pieces 69 of the element holder 66, but the pins may be corrected in a state in which the element body of the pin element is pressed downward by the holding claws 68 of the element holder 66. The pin element may be pressed by operating the element holder 66 downward in a state where the pin element 100 is gripped by the pair of gripping claws 68.

In the above embodiment, the leads are straightened in a state in which the lead element is pressed from above toward below, but the leads may be straightened in a state in which the lead element is pressed from below toward above. That is, the correction tool may be pressed against the pin element.

In the above-described embodiment, the buckling position of the pin in the case where the pin 108 is obliquely bent is estimated in advance in a statistical manner, but the buckling position of the pin may be calculated based on the imaging data by imaging the pin before correction with a camera. Further, the calculated buckling position of the pins may also be clamped by the clamping mechanism 126.

In the above-described embodiment, the pin correction device 110 is mounted on the feeder holding base 86 by fitting the guide rail of the pin correction device 110 into the slot 88 of the feeder holding base 86, but the pin correction device 110 may be mounted on the feeder holding base 86 by fastening a bolt, screwing, or the like, and may be mounted in a position where the work head can be moved as long as it is in the component mounting device.

Description of the reference numerals

Component mounting apparatus (component mounting apparatus) 12..circuit substrate (circuit substrate) 22..substrate handling holding apparatus 60..working head 62..working head 82..tape feeder (feeder) 86..feeder holding table (equipment table) 100..pin element (electric element) 108..pin (terminal) 110..pin straightening apparatus (terminal straightening apparatus) 134..straightening plate (straightening tool)

Claims

1. A component mounting device is provided with:

a substrate conveyance holding device that conveys a circuit substrate in a horizontal direction and fixedly holds the circuit substrate;

a work head for holding an electric element having a plurality of terminals and mounting the electric element on the circuit board; and

The terminal correction device is provided with a correction tool for inserting the plurality of terminals, and the correction tool inserted with the plurality of terminals is moved along the horizontal direction and the direction orthogonal to the direction in which the circuit substrate is conveyed so as to correct the plurality of terminals.

2. The component mounting apparatus of claim 1, wherein,

the work head inserts the plurality of terminals of the held electric component into the correction tool, and presses the electric component from above when the correction tool moves.

3. The component mounting apparatus according to claim 1 or 2, wherein,

the terminal correction device is detachably mounted on a device table on which a feeder is mounted, the device being positioned so that the correction tool moves in the horizontal direction and in a direction orthogonal to the direction in which the circuit board is conveyed.

4. A method is provided with:

an insertion step of inserting a plurality of terminals of the electric component held by the work head into the correction tool from above; and

A pressing step of pressing the electrical component inserted into the correction tool by the plurality of terminals of the electrical component in the inserting step from above,

and correcting the posture of the plurality of terminals provided in the electric component by moving at least one of the correction tool and the electric component in a horizontal direction in a state after the electric component is pressed by the pressing step.