JP2004006469A - Electronic part mounting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an electronic part mounting machine for improving the replacement of a part feeder. <P>SOLUTION: In the electronic part mounting machine wherein electronic parts are fetched out from tape feeders arranged at a part supply unit 5A by a transfer head, a feeder base 21 where the main bodies 6a of the tape feeders are arranged in parallel is set freely transferable by an undercarriage 20 equipped with casters 24 and also freely movable in a vertical direction by a cylinder 27, and the feeder base 21 is secured to the part supply unit 5A by clamping a plate-like unit 2b as a fastening base between the lower surface of the feeder base 21 and a clamping plate 25 as the cylinder 27 is driven. By this setup, the feeder base 21 can be secured in one performance, and workability can be improved when the part feeder is replaced. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an electronic component mounting apparatus for mounting an electronic component on a substrate.
[0002]
[Prior art]
As a method of supplying an electronic component in an electronic component mounting apparatus, a method using a tape feeder is known. In this method, a carrier tape holding an electronic component is pulled out from a supply reel and fed at a pitch to supply the electronic component to a pickup position by a transfer head. In an electronic component supply device, a large number of tape feeders are generally arranged in a parallel state. The number and types of these tape feeders to be installed differ depending on the board to be mounted. Each time the type of board is changed, the tape feeder is replaced in the electronic component supply device.
[0003]
As a method of exchanging the tape feeder at the time of this type change, there is known a method in which a large number of tape feeders are set in advance on a plate-like feeder base in accordance with an arrangement in the electronic component mounting apparatus, and when exchanging, the entire feeder base is exchanged collectively. Have been. According to this method, there is an advantage that the setup work for changing the type can be completed in a short time.
[0004]
[Problems to be solved by the invention]
However, in the conventional electronic component mounting apparatus, when the above-described batch feeder replacement method is used, there are the following inconveniences. First, during the replacement work, the feeder base on which a large number of tape feeders are arranged is transported to the parts supply unit by a transport means such as a trolley, and then the feeder base is fixed to the proper position and the feeder base is fixed with a screw mechanism etc. Operation had to be performed again. For this reason, the work of mounting the feeder base is complicated, and it is not possible to clearly see whether the clamped state is complete or not, and it takes time and effort to confirm.
[0005]
Therefore, an object of the present invention is to provide an electronic component mounting apparatus that can improve workability when replacing a parts feeder.
[0006]
[Means for Solving the Problems]
The electronic component mounting apparatus according to claim 1, wherein the electronic component mounting apparatus takes out an electronic component from a parts feeder arranged in a component supply unit by a transfer head and mounts the electronic component on a substrate. A plurality of feeder arrays arranged in a parallel state and removably mounted on the component supply unit, conveying means for holding and transporting the feeder array so as to be able to move up and down, and the feeder array provided on the conveying means; Driving means for driving a lifting mechanism for raising and lowering and for driving a clamp mechanism for fixing the feeder array section to the component supply section is provided.
[0007]
The electronic component mounting apparatus according to claim 2 is the electronic component mounting apparatus according to claim 1, wherein the parts feeder is a tape feeder that feeds a carrier tape holding electronic components at a pitch, and the transport unit is a carrier tape. Also serves as a reel storage unit for storing supply reels for supplying the supply reels.
[0008]
According to the present invention, a conveying mechanism that holds and conveys a feeder array section in which a number of parts feeders are arranged in parallel and lifts and lowers the feeder array section is driven and a feeder array section is driven by an elevating mechanism that raises and lowers the feeder array section. By providing the driving means for driving the clamp mechanism for fixing the feeder array to the feeder base, the fixing of the feeder array portion to the feeder base can be completed in one operation, and the workability at the time of replacing the parts feeder can be improved.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of an electronic component mounting apparatus according to one embodiment of the present invention, FIG. 2 is a plan view of the electronic component mounting apparatus according to one embodiment of the present invention, and FIG. FIG. 3 (b) is a front view of a tape feeder mounting cart of the electronic component mounting apparatus according to an embodiment of the present invention, and FIG. FIG. 5 is an explanatory view of the operation of a carriage for mounting a tape feeder of the electronic component mounting apparatus according to one embodiment of the present invention, FIG. 5 is a configuration diagram of a reel holder of the electronic component mounting apparatus according to one embodiment of the present invention, and FIG. FIG. 9 is an explanatory diagram of reel size switching of a reel holder of the electronic component mounting apparatus according to one embodiment.
[0010]
First, the structure of the electronic component mounting apparatus will be described with reference to FIGS. In FIGS. 1 and 2, a transport path 3 is arranged on a gantry 2 of an electronic component mounting apparatus 1 in the X direction. The transport path 3 transports a substrate 4 on which electronic components are mounted. Both sides of the transport path 3 are component supply units that supply electronic components. As shown in FIG. 2, a large number of tape feeders 6 for supplying electronic components held on a tape are mounted on the component supply section 5A on one side, and electronic components are stored on the component supply section 5B on the other side. The tray feeder 7 for supplying the tray 7a is set.
[0011]
A feeder base 21 in which a large number of main body parts 6a of the tape feeder 6 are arranged in a parallel state is transported by a carriage 20 and mounted collectively on the component supply unit 5A. The plate-like portion 2b of the gantry 2 in which the top plate 2a extends into the component supply section 5A serves as a fastening base when the feeder base 21 is fixedly mounted to the component supply section 5A as described later.
[0012]
At both ends of the gantry 2, Y-axis tables 8 A, 8 B are arranged in a direction orthogonal to the transport path 3. Y-axis tables 8A and 8B drive X-axis tables 9A and 9B in the Y direction, respectively. A mounting head 10 is mounted on the X-axis tables 9A and 9B. By driving the X-axis table 9A and the Y-axis table 8A, the mounting head 10 picks up electronic components from the tape feeder 6 of the supply unit 5A. It is mounted on the substrate 4 on the transport path 3. By driving the X-axis table 9B and the Y-axis table 8B, the mounting head 10 picks up electronic components from the tray 7a held by the tray feeder 7 of the supply unit 5B.
[0013]
The X-axis tables 9A and 9B are provided with cable carriers 11X and 11Y for accommodating cables connected to the mounting head 10. The cable carrier 11X is arranged along the X-axis tables 9A and 9B, and guides cables to the X-axis tables 9A and 9B via the terminal 12. The cable bear 11Y guides the cables connected to the X-axis table 9A to the fixing portion 13. Note that the illustration of the cable bears 11X and 11Y is omitted for the X-axis table 9B.
[0014]
Next, with reference to FIGS. 3 and 4, a description will be given of the carriage 20 for collectively attaching and detaching the tape feeder 6 and the main body 6a of the tape feeder 6. FIG. In FIG. 3, the main body 6a includes a tape feeding mechanism that pulls out a carrier tape holding electronic components from a supply reel stored in the reel storage unit 23 and feeds the carrier tape at a pitch.
[0015]
The cart 20 is movable by a caster 24 provided at a lower portion, and a plate-like feeder base 21 horizontally disposed on a top plate portion 22 provided on a box-shaped reel storage portion 23 is vertically movable. It is a configuration that is arranged. On the feeder base 21, a plurality of main body portions 6a of the tape feeder 6 (parts feeder) are arranged in parallel.
[0016]
The feeder base 21 is moved up and down relatively with respect to the reel accommodating section 23 by a cylinder 27, and the elevating operation is guided by a slide guide 26. When the tape feeder 6 is mounted on the electronic component mounting apparatus 1, the feeder base 21 is mounted on the component supply unit 5A. Clamp plates 25 are provided upright on both ends of the top plate portion 22. By clamping the plate-like portion 2b of the component supply portion 5A between the upper surface of the clamp plate 25 and the lower surface of the feeder base 21, the clamp plate 25 is clamped. The feeder base 21 is fixedly mounted on the component supply section 5A. The lower surface of the feeder base 21 and the clamp plate 25 form a clamp mechanism for fixing the feeder base 21 to the component supply unit 5A.
[0017]
As shown in FIG. 3B, the reel storage section 23 is partitioned so as to vertically store a large number of reel holders 28 (reel holding sections), and each reel holder 28 has a carrier tape holding electronic components. Are held in a plurality. Here, two types of supply reels 30A (small reels) and supply reels 30B (large reels) can be held. The carrier tape 29 pulled out from the supply reels 30A and 30B is drawn into the tape feeder 6 from the rear end of the tape feeder 6.
[0018]
Next, with reference to FIG. 4, an operation of mounting the carriage 20 to the component supply unit 5A when exchanging the tape feeder will be described. First, as shown in FIG. 4A, the main body portions 6a of a large number of tape feeders 6 are mounted on the feeder base 21 of the empty carriage 20 in a predetermined arrangement according to the feeder mounting data. This feeder arrangement work is performed in a work place with good workability away from the electronic component mounting apparatus 1.
[0019]
Next, as shown in FIG. 4B, the cart 20 on which the mounting of the main body 6a is completed is transported using the casters 24, and is pushed into the mounting position of the component supply unit 5A of the electronic component mounting apparatus 1. At this time, the feeder base 21 is raised in advance so that the plate-shaped portion 2b is located between the lower surface of the feeder base 21 and the upper surface of the clamp plate 25. Then, as shown in FIG. 4C, the cylinder 27 is driven in a direction in which the feeder base 21 descends relatively to the reel holder 23. As a result, the lower surface of the feeder base 21 first comes into contact with the upper surface of the plate portion 2b, and the vertical position of the feeder base 21 is fixed.
[0020]
Then, when the cylinder 27 is further driven, the reel accommodating portion 23 rises with respect to the feeder base 21 whose vertical position is fixed, and the upper surface of the clamp plate 25 contacts the lower surface of the plate portion 2b. As a result, the plate-shaped portion 2b is sandwiched and clamped by the feeder base 21 and the clamp plate 25, and the fixing of the feeder base 21 can be performed simply by one operation of the cylinder 27, and the workability at the time of the feeder replacement operation is improved. You.
[0021]
In a state where the feeder base 21 is fixedly mounted, the caster 24 is located at a position raised away from the floor surface FL. Therefore, it is easy to determine whether or not the feeder base 21 is securely fixed to the component supply unit 5A. Can be visually recognized. As a result, a machine trouble caused by starting the mounting apparatus while the fixing state of the feeder base 21 is unstable is reliably prevented.
[0022]
In the above-described configuration, the feeder base 21 is a feeder array unit in which a plurality of tape feeders 6 for supplying electronic components are arranged in a parallel state and are detachably mounted on the component supply unit 5A. The carriage 20 provided with the casters 24 serves as a transport unit that holds and transports the feeder array unit so as to be able to move up and down. In the above-described embodiment, the transport unit also serves as a reel storage unit that stores the supply reel.
[0023]
The cylinder 27 serves as a driving unit that drives an elevating mechanism provided on the carriage 20 for elevating and lowering the feeder base 21 and driving a clamp mechanism for clamping the feeder base 21 to the component supply unit 5A. As the driving means, a manual jack using a mechanism such as a screw may be used in addition to the cylinder.
[0024]
Next, the structure of the reel storage section 23 will be described with reference to FIG. As described above, a large number of reel holders 28 are vertically housed in the reel storage portion 23 provided in the cart 20 so that they can be freely inserted and removed in the front-rear direction. You can do it.
[0025]
The reel holder 28 is capable of accommodating a plurality of supply reels as described above. In this accommodation state, the two supply reels are configured to be held in series without being overlapped in the width direction in a parallel state. ing. Accordingly, even when a double-type tape feeder 6 that can supply two tapes at the same time is arranged, it is possible to accommodate each of the tape feeders 6 without increasing the width of the reel storage unit 23. Thus, two supply reels can always be stored.
[0026]
The reel holder 28 has a configuration in which support rollers 31a, 31b, 31c for reel reception and a reel holding unit 32 are disposed on a side surface of a vertical side plate 28a. The support rollers 31a, 31b, and 31c are rotatably mounted on the side surface of the side plate 28a, and are two specific support rollers among a plurality of support rollers including a support roller provided on a reel holding unit 32 described later. Thus, by supporting the outer peripheral portion of the supply reel 30A or 30B, these supply reels are rotatably held.
[0027]
FIG. 5B shows an example in which the supply reel 30B is held by two support rollers 31b and 31c. That is, the outer peripheral portion 30a of the supply reel 30B is supported at two points by the support rollers 31b and 31c, whereby the position of the supply reel 30B in the vertical and horizontal directions (the paper surface direction in FIG. 5) is maintained and the supply reel 30B is mounted. In this state, when the side surface abuts on the side plate 28a, the direction of the supply reel 30B is adjusted to the tape feed direction. At this time, the rotation of the supply reel 30B in the direction of the arrow is permitted by the rotation of the support rollers 31b and 31c.
[0028]
Next, the reel holding unit 32 will be described. As shown in FIG. 5A, the reel holding unit 32 has a configuration in which support rollers 32b and 32c similar to the support roller 31a and the like are arranged at both ends of an elongated plate member 32a. , 32c are set such that two smaller supply reels 30A can be supported at two points. That is, the reel holding unit 32 has a configuration in which two support portions are held at a support interval for supporting small reels.
[0029]
Here, the support roller 32c located inside the side plate 28a is not only rotatably attached to the plate member 32a but also supported by pins on the side plate 28a. That is, as shown in FIG. 5A, the reel receiving unit 32 is reversible around the support roller 32c, and is rotatable to two different positions as the reel holding unit 32. In these two positions, the position of the reel holding unit 32 is fixed by the plate members 32a abutting on the support rollers 31a and 31b, respectively. That is, the configuration in which the reel holding unit 32 is rotated around the support roller 32c constitutes a mounting position moving unit that moves the reel holding unit 32 on the side plate 28a.
[0030]
In the above-described configuration, the side plate 28a is a side supporting unit that contacts the side surfaces of the supply reels 30A and 30B to adjust the direction of the supply reels to the tape feeding direction. The support rollers 31a, 31b, 31c attached to the side plate 28a and the support rollers 32b, 32c of the reel holding unit 32 are support portions for supporting the outer periphery of the supply reels 30A, 30B. The combination of the two specific support rollers serves as a rotation holding unit that is disposed on the side plate 28a and supports the outer circumferences of the supply reels 30A and 30B with at least two support portions, thereby rotatably holding these supply reels. ing.
[0031]
Next, the reel size switching of the reel holder 28 in the reel storage unit 23 will be described with reference to FIG. The reel size switching is performed when the size of any one of the two supply reels held by the reel holder 28 is changed, when the support rollers 31a, 31b, 31c and the support rollers 32b, 32c of the reel holding unit 32 are changed. Is to change the arrangement of two support rollers for supporting each supply reel. There are two types of arrangement patterns of the support rollers: a first arrangement for two supply reels including both supply reels 30A and 30B, and a second arrangement for two supply reels including only supply reel 30A. Is set.
[0032]
First, the first arrangement will be described with reference to FIG. In this case, the reel holding unit 32 is turned to the support roller 31a side. Thus, the supply reel 30A is supported by the support rollers 32b and 32c, and the supply reel 30B is supported by the support rollers 31b and 31c. At this time, the position of the fixed support roller 32c is set so that the supply reel 30B and the reel holding unit 32 do not interfere with each other.
[0033]
Next, the second arrangement will be described with reference to FIG. In this case, the reel holding unit 32 is turned to the support roller 31b side. Thus, one supply reel 30A is supported by the support rollers 31a and 32c, and the other supply reel 30A is supported by the roller 32c and the support roller 31b that has been reversed.
[0034]
In the above configuration, the reel holding unit 32 and the support roller 32c for rotating and moving the reel holding unit 32 on the side plate 28a change the arrangement pattern of the support rollers 31a, 31b, 31c, 32b, 32c by the above-described first arrangement and the second arrangement. This is an arrangement change unit corresponding to the arrangement.
[0035]
By using such a configuration, when two types of supply reels having different sizes need to be supplied in combination, a compact configuration and simple arrangement change operation can be performed without providing a reel holding unit dedicated to each size. It is possible to switch the reel size with.
[0036]
Note that, in the above-described embodiment, an example in which the reel holding unit 32 is inverted around one support roller is shown as an arrangement change unit that changes the arrangement pattern of the support rollers. The present invention is not limited to this. For example, a method may be used in which a support roller mounting hole is provided in advance in the side plate 28a at a position corresponding to each reel size, and the support roller is attached and detached when the reel size is switched.
[0037]
【The invention's effect】
According to the present invention, a conveying mechanism that holds and conveys a feeder array section in which a number of parts feeders are arranged in parallel and lifts and lowers the feeder array section is driven and a feeder array section is driven by an elevating mechanism that raises and lowers the feeder array section. Since the driving means for driving the clamp mechanism for fixing the feeder arrangement is provided, the fixing of the feeder array portion to the feeder base can be completed in one operation, and the workability at the time of replacing the parts feeder can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view of an electronic component mounting apparatus according to an embodiment of the present invention. FIG. 2 is a plan view of an electronic component mounting apparatus according to an embodiment of the present invention. FIG. Side view of a carriage for mounting a tape feeder of the electronic component mounting apparatus according to the embodiment (b). Front view of a carriage for mounting a tape feeder of the electronic component mounting apparatus according to one embodiment of the present invention. FIG. 5 is an explanatory view of an operation of a carriage for mounting a tape feeder of the electronic component mounting apparatus according to the embodiment. FIG. 5 is a configuration diagram of a reel holder of the electronic component mounting apparatus according to one embodiment of the present invention. For switching the reel size of the reel holder of the electronic component mounting apparatus according to the first embodiment.
REFERENCE SIGNS LIST 1 electronic component mounting apparatus 4 substrate 5A component supply unit 6 tape feeder 10 transfer head 20 carriage 21 feeder base 23 reel storage unit 25 clamp plate 27 cylinder 28 reel holder 28a side plate 29 carrier tape 30A, 30B supply reels 31a, 31b, 31c , 32b, 32c Support roller 32 Reel holding unit

Claims (2)

An electronic component mounting apparatus that takes out an electronic component from a parts feeder arranged in a component supply unit by a transfer head and mounts the electronic component on a substrate, wherein a plurality of parts feeders that supply the electronic components are arranged in a parallel state and are provided in the component supply unit. A feeder array portion that is detachably mounted, a conveying unit that holds and conveys the feeder array unit so that the feeder array unit can be raised and lowered, and a feeder array unit that drives an elevating mechanism that is provided in the conveyance unit and that moves the feeder array unit up and down An electronic component mounting apparatus comprising: a driving unit that drives a clamp mechanism for fixing the electronic component to a component supply unit. 2. The electronic device according to claim 1, wherein the parts feeder is a tape feeder that feeds a carrier tape holding electronic components at a pitch, and the transport unit also serves as a reel storage unit that stores a supply reel that supplies the carrier tape. Component mounting equipment.

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