JP2019220624A - Component mounting device - Google Patents

Abstract

To provide a component mounting device capable of restraining loss of component mounting accuracy by securing rigidity of a frame.SOLUTION: A component mounting device for mounting components, supplied from multiple tape feeders, on a board comprises a board conveyor for conveying the board in a first direction, a carriage housing part provided on one of both sides of the board conveyor, and capable of housing a carriage 6 to which at least one of the multiple tape feeders is attached, and a feeder base 10 provided on the other of both sides of the board conveyor, and to which at least one of the multiple tape feeders can be attached. With such an arrangement, the first and second frames 21, 22 can be coupled by a coupling member 24 on the other side where the carriage 6 is not set, and loss of component mounting accuracy can be suppressed by securing rigidity of a frame 2.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a component mounting apparatus for mounting components on a board.

  As a general device layout of a component mounting apparatus that mounts components on a substrate, there is known a configuration in which component supply units that supply components are arranged on both sides of a substrate transport conveyor that transports the substrate (for example, see Patent Document 1). . In the component mounting apparatus having such an apparatus layout including this patent document example, a substantially H-shaped plan view in which two frames in a direction perpendicular to the board transfer direction are connected by beam members as a gantry structure. Frame structure is used. A component supply unit is provided between the two frames, and a cart on which component supply devices such as a plurality of tape feeders are mounted is set in the component supply unit.

JP-A-2006-86083

  However, in the prior art including the above-mentioned patent document example, the carts are set on the component supply units arranged on both sides of the board transfer conveyor, there are the following problems due to such an apparatus layout. . That is, since the production equipment is required to improve the area productivity, the component mounting apparatus is also required to be reduced in size. For this reason, it is necessary to make the width dimension of the two frames constituting the above-mentioned gantry as small as possible, and a decrease in the rigidity of the gantry is inevitable. As a result, the vibration of each part of the device during the operation of the component mounting device cannot be sufficiently suppressed, and the component mounting accuracy is reduced due to the influence of the vibration.

 Therefore, an object of the present invention is to provide a component mounting apparatus capable of securing the rigidity of a gantry and suppressing a decrease in component mounting accuracy.

  A component mounting apparatus according to the present invention is a component mounting apparatus that mounts components supplied from a plurality of component supply devices on a board, and sandwiches the board transport conveyor that transports the board in a first direction and the board transport conveyor. And a trolley accommodating portion provided on one of the two sides and capable of accommodating a trolley on which at least one of the plurality of component supply devices is mounted, and the plurality of the plurality of A mounting portion to which at least one of the component supply devices can be mounted.

  ADVANTAGE OF THE INVENTION According to this invention, the rigidity of a gantry can be ensured and the fall of component mounting precision can be suppressed.

FIG. 1 is a plan view of a component mounting apparatus according to an embodiment of the present invention. 1 is a side view of a component mounting apparatus according to an embodiment of the present invention. Configuration explanatory view of a frame of a component mounting apparatus according to an embodiment of the present invention FIG. 1 is an explanatory diagram of a configuration and an operation of a cutter provided in a component mounting apparatus according to an embodiment of the present invention. Configuration explanatory diagram of a reel bogie connection part in a component mounting apparatus according to an embodiment of the present invention. FIG. 1 is a block diagram illustrating a configuration of a control system of a component mounting apparatus according to an embodiment of the present invention.

  Next, embodiments of the present invention will be described with reference to the drawings. First, the overall configuration of the component mounting apparatus 1 will be described with reference to FIGS. The component mounting apparatus 1 has a function of mounting components supplied from a plurality of component supply devices on a substrate. In the present embodiment, a tape feeder that supplies components by intermittently feeding a carrier tape in which components are enclosed is used as a component supply device.

  1 and 2, the component mounting apparatus 1 is configured by arranging elements described below on a gantry 2. Here, the gantry 2 is configured by attaching a plate member to a required portion of the frame structure shown in FIG. In each of the drawings, the illustration of the plate member is omitted.

  In FIG. 1, at the center of the gantry 2, a substrate transport conveyor 3 is arranged in the X direction which is the first direction. The board | substrate conveyance conveyor 3 conveys the board | substrate 4 of the work target delivered from an upstream apparatus in X direction, and positions it in a component mounting position. A component supply unit 5A and a component supply unit 5B are disposed on both sides of the substrate transport conveyor 3, respectively.

  A cart 6 on which a plurality of tape feeders 7 can be collectively mounted on the component mounting apparatus 1 is mounted on a component supply unit 5A arranged on one side (lower side in FIG. 1) of the both sides of the board transport conveyor 3. Is set. That is, at least one of the tape feeders 7 as a plurality of component supply devices is mounted on the cart 6 together with the corresponding reel 8.

  A feeder base 10 on which a plurality of tape feeders 7 can be mounted is provided on the upper surface of the gantry 2 on the component supply unit 5B disposed on the other side (upper side in FIG. 1) of the two sides sandwiching the board transport conveyor 3. It is fixed and provided. Further, a reel carriage 11 accommodating a reel 8 corresponding to the tape feeder 7 mounted on the feeder base 10 is detachably connected to the component supply section 5B.

  At one end of the upper surface of the gantry 2 on the X direction side, a Y-axis moving table 12 is arranged in the Y direction which is the second direction. The Y-axis moving table 12 is held by frame bodies 21a and 21b coupled to the upper surface of the first frame 21 shown in FIG. An X-axis moving beam 13 is mounted on the Y-axis moving table 12 so as to be movable in the Y direction. Further, a mounting head 15 is mounted on the X-axis moving beam 13 so as to be movable in the X direction. The Y-axis moving table 12 and the X-axis moving beam 13 constitute a head moving mechanism 14 for moving the mounting head 15.

  By driving the head moving mechanism 14, the mounting head 15 moves in the X and Y directions. As a result, the mounting head 15 takes out the components from the tape feeders 7 of the component supply units 5A and 5B by the nozzles 15a (see FIG. 2) provided at the lower end, and the substrate 4 positioned on the substrate transport conveyor 3. To be implemented.

  A board recognition camera 16 that moves integrally with the mounting head 15 is provided on the lower surface side of the X-axis movement beam 13. By moving the mounting head 15 to position the board recognition camera 16 above the board 4, the upper face of the board 4 is imaged by the board recognition camera 16.

  Further, a component recognition camera 17 is arranged between the board transport conveyor 3 and the component supply units 5A and 5B. The component recognition camera 17 captures an image of the component held by the mounting head 15 by positioning the mounting head 15 that has taken out the components from the component supply units 5A and 5B above the component recognition camera 17.

  Next, details of the component supply unit 5A and the component supply unit 5B will be described with reference to FIG. In the component supply section 5A, the carriage 6 is mechanically fixed to the gantry 2 by fixing means (not shown) provided on the gantry 2. The cart 6 is electrically connected to a main body in the gantry 2 via a cart connector 6b. The carriage 6 holds a plurality of reels 8 in which a carrier tape 9 enclosing parts is wound and stored. The carrier tape 9 pulled out from the reel 8 is taken into the tape feeder 7, intermittently fed in the tape feeder 7, and transported to a position where the mounting head 15 takes out the tape. In this tape feeding process, the cover tape is peeled off from the carrier tape 9, and the mounting head 15 takes out the components from the carrier tape 9 after the tape is peeled off.

  The carrier tape 9a after tape separation is guided by a tape guide 6a opened at the front end of the tape feeder 7, sent to a cutter 6c provided below, where it is cut into small pieces. The tape dust 9a * (see FIG. 4B) in which the cut carrier tape 9a has become a strip is guided downward through a duct 6d, and is collected by a collection unit 6e provided at the bottom of the cart 6. Is done. In this specification, a carrier tape in which components are sealed and a cover tape is adhered is referred to as “carrier tape 9”, and a carrier tape in a state where the cover tape is peeled is referred to as “carrier tape 9a”. And distinguish them.

  In the component supply unit 5B, a feeder base 10 on which a plurality of tape feeders 7 can be mounted in parallel is arranged on the upper surface of the gantry 2. By mounting the tape feeders 7 on the feeder base 10, each of the tape feeders 7 is connected to the main body in the gantry 2 via the feeder connector 7a. A reel carriage 11 is mechanically detachably connected to a main body in the gantry 2 via a connection end 11b on a side surface of the gantry 2 in the component supply section 5B. The reel carriage 11 holds a plurality of reels 8 in which a carrier tape 9 enclosing parts is wound and stored.

  The carrier tape 9 pulled out from the reel 8 is taken into the tape feeder 7, intermittently fed in the tape feeder 7, and transported to a position where the mounting head 15 takes out the tape. In this tape feeding process, the cover tape is peeled off from the carrier tape 9, and the mounting head 15 takes out the components from the carrier tape 9a after the tape has been peeled off.

  The carrier tape 9a is guided by a tape guide 11a opened at the front end of the tape feeder 7, and is sent to a cutter 18, which is a cutting section provided below, where it is cut into small pieces. The tape dust 9a * (see FIG. 4B), in which the cut carrier tape 9a has become a strip, is guided downward through the duct 19, and is collected by the collection unit 11c provided at the bottom of the component mounting apparatus 1. Will be collected.

  The operation of each of the above-described units is controlled by a control unit 40 disposed in a main body in the gantry 2. The top and side surfaces of the head moving mechanism 14 and the mounting head 15 are closed by a cover member 25. Display panels 26 for operation are arranged on both side surfaces of the cover member 25. When an operator performs an operation input via the display panel 26, an operation command to each unit of the component mounting apparatus 1 is input.

  Next, the configuration of the gantry 2 will be described with reference to FIG. FIG. 3A shows a state in which a plate portion such as a base plate or a cover has been removed from the elements constituting the gantry 2. FIG. 3B shows a plan view of a frame part of the gantry 2 as viewed from the direction of arrows AA in FIG.

  In FIG. 3A, the gantry 2 has two frames (a first frame 21 and a second frame 22) arranged in parallel in a Y direction (second direction) orthogonal to the X direction (first direction). are doing. Frame bodies 21 a and 21 b supporting the Y-axis moving table 12 shown in FIG. 2 are connected to the upper surface of the first frame 21. The first frame 21 and the second frame 22 have their middle portions connected by a third frame 23 in the X direction.

  Further, the gantry 2 is provided with a connecting member 24 for connecting the first frame 21 and the second frame 22 on the other side in the X direction. In FIG. 3, the connecting member 24 is provided at the other end of the first frame 21 and the second frame 22. However, as long as the connecting member 24 is located on the other side of the substrate transport conveyor 3, the connecting member 24 is not necessarily provided at the end. It is not necessary.

  As shown in FIG. 3B, one side between the first frame 21 and the second frame 22, that is, a space outside the third frame 23 is a bogie on which at least one of the plurality of tape feeders 7 is mounted. 6 functions as a trolley accommodating part capable of accommodating the pallet 6. The feeder base 10 located on the upper surface of the connecting member 24 arranged on the other side is a mounting portion to which at least one of the plurality of tape feeders 7 can be mounted.

  That is, the component mounting apparatus 1 according to the present embodiment is provided on one side of both sides of the board transport conveyor 3 and is capable of accommodating the carriage 6 on which at least one of the plurality of tape feeders 7 is mounted. And a mounting portion provided on the other side of the both sides of the substrate transport conveyor 3 to which at least one of the plurality of tape feeders 7 can be mounted.

  Making the gantry 2 of the component mounting apparatus 1 as described above has the following technical significance. That is, in a production facility configured by arranging a plurality of facilities in parallel, such as a component mounting facility, it is strongly required to reduce the size of the facility in order to improve area productivity. Therefore, it is required that the width dimensions B1 and B2 of the first frame 21 and the second frame 22 shown in FIG.

  In the frame structure in which the first frame 21 and the second frame 22 having the reduced width dimensions B1 and B2 are arranged in parallel, as shown in the present embodiment, the other side is connected by the connecting member 24 to form a frame structure. By doing so, the rigidity of the entire gantry 2 can be increased. Therefore, in the component mounting operation performed by driving the head moving mechanism 14, it is possible to secure the rigidity of the gantry 2 while reducing the size of the equipment and to suppress a decrease in component mounting accuracy due to the influence of vibration. it can.

  Next, the configuration and operation of the cutter 18 provided in the component supply unit 5B will be described with reference to FIG. A cutter 18 is provided below the mounting section shown in FIG. The cutter 18 has a function of cutting the carrier tape 9a discharged from the tape feeder 7 mounted on the mounting section.

  As shown in FIG. 4A, the cutter 18 has a fixed blade 30 fixed inside the housing 18 a and a movable blade 31 that advances and retreats with respect to the fixed blade 30 by the cylinder 32. The configuration is as follows. A tape guide 11a for guiding the carrier tape 9a discharged from the tape feeder 7 of the component supply unit 5B is inserted into the housing 18a. An opening 19a communicating with the duct 19 is provided on the bottom surface of the housing 18a.

  As shown in FIG. 4B, when the component supply is performed by the tape feeder 7 in the component supply unit 5B, the carrier tape 9a from which the components have been removed is guided into the housing 18a by the tape guide 11a. When the movable blade 31 is reciprocated by driving the cylinder 32 in this state (arrow a), the carrier tape 9a becomes tape dust 9a * cut into small pieces. Then, the tape dust 9a * falls into the duct 19 (arrow b), and is guided by the duct 19 to the collection unit 11c provided on the reel carriage 11.

  Next, with reference to FIG. 5, the reel bogie connecting portion 34 provided on the other side of the gantry 2 will be described. The reel bogie connection portion 34 is connected to a reel bogie 11 capable of storing a reel 8 for supplying the carrier tape 9 to a tape feeder 7 mounted on a feeder base 10 serving as a mounting portion. It is provided in.

  As shown in FIG. 5A, a reel bogie connection portion 34 for connecting the reel bogie 11 is provided on the other side surface of the gantry 2. The reel carriage 11 is connected to the gantry 2 by fitting the connection end 11b provided on the reel carriage 11 into the reel carriage connection part 34. On the side surface of the gantry 2, near the reel bogie connection portion 34, there is provided a reel bogie switch 33 as a detecting portion for detecting that the reel bogie 11 is connected to the reel bogie connection portion 34.

  The reel truck switch 33 is a mechanical switch having a probe 33a, and emits a detection signal when an object to be detected contacts the probe 33a. That is, here, a switch that mechanically detects that the reel bogie 11 is connected is used as the detection unit, and more reliable detection without erroneous detection is ensured.

  As shown in FIG. 5B, when the reel carriage 11 is moved closer to the gantry 2 (arrow c) and the connection end 11b is fitted to the reel carriage connection part 34, the probe 33a is moved by the reel carriage 11 approached. Pushed. As a result, the reel truck switch 33, which is a detecting unit, mechanically detects that the reel truck 11 is connected, and this detection signal is transmitted to the control unit 40 shown in FIG. Then, the control unit 40 controls the operation of the cutter 18 based on the detection result.

  In the present embodiment, when the reel truck switch 33 serving as the detecting unit detects that the reel truck 11 is connected to the gantry 2, the operation of the cutter 18 serving as the cutting unit is permitted. Thereby, an unsafe state due to the operation of the cutter 18 in a state where the reel carriage 11 is removed from the gantry 2, that is, a danger caused by a worker entering the gantry 2 with his / her hand and touching the operating cutter 18 is avoided. To prevent it. Further, there is an advantage that the scattering of the tape dust 9a * due to the operation of the cutter 18 in a state where the collection unit 11c of the reel carriage 11 is removed can be prevented.

  The above-mentioned unsafe condition can be improved by extending the length of the duct 19 for guiding the tape dust 9a * cut by the cutter 18, but in this case, the duct 19 is extended to the outside of the gantry 2. It is not preferable because the workability at the time of the type change operation is reduced.

  Next, a configuration of a control system of the component mounting apparatus 1 will be described with reference to FIG. 6, the control unit 40 includes an implementation processing unit 41, a recognition processing unit 42, a disconnection processing unit 43, and a display processing unit 44 as internal processing functions. The mounting processing unit 41 controls the operations of the respective components of the substrate transport conveyor 3, the mounting head 15, the head moving mechanism 14, the component supply unit 5A, and the component supply unit 5B by controlling the mechanism driving unit 45. Thus, a component mounting operation of mounting components taken out from the component supply unit 5A and the component supply unit 5B on the board 4 positioned and held on the board transport conveyor 3 is performed.

  In this component mounting operation, the recognition processing unit 42 performs a recognition process on the image pickup results obtained by the component recognition camera 17 and the board recognition camera 16. That is, the position of the substrate 4 is recognized by performing the recognition processing of the image pickup result by the substrate recognition camera 16. In addition, by performing recognition processing of the image pickup result by the component recognition camera 17, the identification and displacement of the component held by the mounting head 15 are detected. When components are mounted by the mounting head 15, the head moving mechanism 14 is controlled in consideration of these recognition results.

  The cutting processing unit 43 controls the cutting operation by the cutter 18 by controlling the cutter driving unit 46. In this control, the operation of the cutter 18 as a cutting unit is controlled based on the detection result of the reel bogie switch 33 as a detecting unit. That is, when the reel truck switch 33 detects that the reel truck 11 has been connected, the operation of the cutter 18 is permitted. This prevents the above-described inconvenience caused by the operation of the cutter 18 when the reel carriage 11 is detached from the gantry 2. The fact that the reel cart 11 has been removed from the gantry 2 is displayed on the display panel 26 by the display processing unit 44.

  As described above, in the component mounting apparatus 1 according to the present embodiment, in the component mounting apparatus 1 that mounts components supplied from the plurality of tape feeders 7 on the board 4, the board that conveys the board 4 in the first direction is used. The substrate conveyor 3 is sandwiched between the transport conveyor 3, a trolley accommodating portion provided on one side of both sides of the substrate transport conveyor 3 and capable of accommodating the trolley 6 to which at least one of the plurality of tape feeders 7 is mounted. A feeder base 10 is provided on the other side of the both sides and is a mounting portion to which at least one of the plurality of tape feeders 7 can be mounted. Thereby, the first frame 21 and the second frame 22 can be connected by the connecting member 24 on the other side where the carriage 6 is not set, and the rigidity of the gantry 2 is ensured to suppress a decrease in component mounting accuracy. it can.

  In the component mounting apparatus 1 according to the present embodiment, in the component mounting apparatus 1 that mounts a component supplied from a tape feeder 7 that intermittently feeds a carrier tape 9 in which components are encapsulated to the substrate 4, the tape feeder 7 is used. A feeder base 10 that can be mounted, a cutter 18 provided below the feeder base 10 to cut the carrier tape 9 discharged from the tape feeder 7, and a reel that can accommodate a reel 8 that supplies the carrier tape 9. Based on a reel bogie connection portion 34 to which the bogie 11 can be connected, a reel bogie switch 33 as a detecting portion for detecting that the reel bogie 11 is connected to the reel bogie connection portion 34, and a detection result of the reel bogie switch 33. The control unit 40 controls the operation of the cutter 18. This eliminates the unsafe state in which the cutter 18 operates with the reel carriage 11 removed, and ensures the workability of the work of collecting the tape dust 9a * in which the carrier tape 9 has been cut into small pieces. Can ensure the safety of the elderly.

  ADVANTAGE OF THE INVENTION The component mounting apparatus of this invention has the effect that the rigidity of a mount can be ensured and the fall of component mounting precision can be suppressed, and is useful in the component mounting field which mounts components on a board | substrate.

DESCRIPTION OF SYMBOLS 1 Component mounting apparatus 2 Stand 3 Substrate transport conveyor 4 Substrate 5A, 5B Component supply part 6 Cart 7 Tape feeder 8 Reel 9 Carrier tape 10 Feeder base 11 Reel cart 11b Connection end part 14 Head moving mechanism 15 Mounting head 18 Cutter 19 Duct 21 First frame 22 Second frame 24 Connecting member 34 Reel bogie connection

Claims (4)

A component mounting device that mounts components supplied from a plurality of component supply devices on a board,
A substrate transport conveyor for transporting the substrate in a first direction,
A trolley accommodating portion which can accommodate a trolley provided with at least one of the plurality of component supply devices, which is provided on one of both sides of the substrate transport conveyor,
A mounting unit provided on the other side of both sides of the substrate transport conveyor and capable of mounting at least one of the plurality of component supply devices. The component mounting apparatus according to claim 1, further comprising:
The mount of the component mounting apparatus has two frames arranged in parallel in a second direction orthogonal to the first direction,
The bogie accommodating portion is formed on the one side between the two frames,
A component mounting apparatus, comprising: a connecting member that connects the two frames on the other side in the first direction. The component mounting apparatus according to claim 1, further comprising:
A cutting unit provided below the mounting unit and cutting a carrier tape discharged from a component supply device mounted on the mounting unit,
A duct for guiding the carrier tape cut by the cutting section to a collection section. The component mounting apparatus according to claim 1, further comprising:
A component mounting device, comprising, on the other side, a reel bogie connection portion capable of connecting a reel bogie capable of storing a reel for supplying a carrier tape storing the component to the component feeding device mounted on the mounting portion.

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