JP3848872B2 - Electronic component mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention provides an electronic component supply device that includes a stick tube that is disposed obliquely downward and accommodates an electronic component on a feeder base, and also includes a safety cover that protects the electronic component supply device. The present invention relates to an electronic component mounting apparatus that picks up the electronic component from a device by suction from a suction nozzle and mounts the electronic component on a printed board.
[0002]
[Prior art]
An electronic component supply device that includes a stick tube that is disposed obliquely forward and stores electronic components on a feeder base is disclosed in, for example, Japanese Patent Application Laid-Open No. 11-251787. Although not disclosed in the publication, the electronic component supply device is provided on the feeder base, and a safety cover for protecting the electronic component supply device is provided.
[0003]
[Problems to be solved by the invention]
However, since the electronic component supply device has a structure that is fixed on the feeder base, the safety cover provided on the feeder base is obstructive when switching the type of electronic components or during maintenance. bad. In particular, there is a problem in that when the work of the front end (lower end) of the electronic component supply device occurs, the work cannot be performed unless the operator enters the body into the electronic component mounting device.
[0004]
Therefore, the present invention provides an electronic component mounting apparatus provided with an electronic component supply device having a stick tube disposed obliquely downward and containing an electronic component on a feeder base. The purpose is to improve workability during the maintenance of the apparatus.
[0005]
[Means for Solving the Problems]
For this reason, the present invention provides an electronic component supply device that includes an electronic component on a feeder base and has a stick tube disposed obliquely downward, and a safety cover that covers and protects the upper portion of the electronic component supply device. In the electronic component mounting device for picking up the electronic component from the electronic component supply device by using a suction nozzle and mounting the electronic component on a printed circuit board, the electronic component supply device is fixed to the feeder base by a fixing member and the fixing member is used. It is possible to move in a direction away from the safety cover along the feeder base by removing the fixing.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is an external perspective view showing a multi-function chip mounter (electronic component mounting device) 1 to which an electronic component supply device according to this embodiment is applied. As shown in FIG. 1, the chip mounter 1 includes a substrate transport device 4 that transports the substrate 3 at the upper part of the machine base 2 and positions and fixes the substrate 3 at a component mounting position, and a carrier tape and a stick tube described later. The component supply devices 5 and 6 supply the electronic components to the respective extraction positions, and the component mounting device 7 that mounts the various electronic components supplied to the extraction positions on the substrate 3, respectively.
[0007]
The substrate transfer device 4 has a pair of rails 11 and 11 opposed to each other and supported above the machine base 2, and the opposing surfaces of these rails 11 and 11 both have grooves 11 a in the longitudinal direction. 11a are formed. Guided by these grooves 11a, 11a, the board 3 is set at the component mounting position.
[0008]
The component mounting apparatus 7 includes a mounting head 12 and a suction nozzle 13 that extends downward from the mounting head 12 and sucks supplied electronic components. The mounting head 12 is configured above the substrate 3. The XY stage 14 moves. That is, the XY stage 14 includes an X stage 15 on which the mounting head 12 is mounted and moved in the X-axis direction, and a Y stage 16 that moves the X stage in the Y-axis direction. Therefore, in the component mounting apparatus 7, first, the mounting head 12 is moved to the take-out position of the electronic component supplied from the component supply devices 5 and 6 by the XY stage 14, and the electronic component is sucked at the lower end of the suction nozzle 13 at that position. To do. Thereafter, the mounting head 12 moves to a mounting position on the substrate 3 and releases the suction, and mounts the electronic component on the substrate 3 by the suction nozzle 13 lowered.
[0009]
As shown in FIG. 1, the electronic components are supplied by an electronic component supply device 5 using a carrier tape 18 and an electronic component supply device 6 using a stick tube 19. In the electronic component supply device 5 for the carrier tape 18, four types of tape reels 17 are arranged on the side surface of the machine base 2, and each tape reel 17 is loaded with the same type of electronic components at regular intervals. Tape 18 is wound. Then, the carrier tape 18 is unwound from the tape reel 17, the cover tape is peeled off, and the electronic components are supplied one by one to the take-out position.
[0010]
In the electronic component supply device 6 for the stick tube 19, a plurality of flexible rectangular tube-like stick tubes 19 are provided. Each stick tube 19 contains a large number of electronic components of the same type in a row, and the electronic components that have slid in the stick tube 19 are supplied one by one to the take-out position.
[0011]
Here, the electronic component supply apparatus according to this embodiment, that is, the electronic component supply apparatus 6 using the stick tube 19 will be described in detail. The electronic component supply device 6 includes a plurality of base blocks 21 each having a horizontal plane formed thereon, a plurality of stick tubes 19 arranged in parallel on the base blocks 21, and the stick tubes 19 obliquely disposed above the base blocks 21. A supply-side guide member (not shown) and a tail-end side guide member (not shown) provided on the supply side and the tail end side, respectively, in order to hold the tip down, are both provided on the supply side guide member. A positioning member (not shown) for positioning the supply-side tip 20 of each stick tube 19 in its width direction, a pressing member (not shown) for holding the supply-side tip 20 almost horizontally, and an electronic Provided at the tip of the component supply section, closes the tip opening on the supply side of each stick tube 19 and abuts on the most advanced electronic component and stops it at the take-out position. The contact member 24, thereby rotating the contact member 24, and an air cylinder (moving means) 25 for moving between a distant position and the contact position.
[0012]
Each base block 21 is configured to support the supply-side tip 20 of each stick tube 19 from below on the horizontal plane, and below the entire base block 21 is vibrated in the longitudinal direction of the stick tube 19. A vibration device (not shown) is provided. Further, on both the left and right ends of the base block 21, on the supply side and the tail end side, a pair of support plates (supply side support plate 31, The tail end side support plates 32) are each screwed.
[0013]
Each stick tube 19 has its supply-side tip 20 held substantially horizontally along the horizontal plane of the base block 21, while its tail end is held obliquely upward. In addition, an opening substantially corresponding to the size of one electronic component housed inside is formed at the top of the tip of the supply-side tip 20 of each stick tube 19. An electronic component located at the forefront can be picked up by the suction nozzle 13 upward.
[0014]
The stick tubes 19 arranged side by side on the base block 21 are arranged in parallel with various types having different cross-sectional shapes according to various electronic components (especially the outer shape) to be mounted on the substrate 3. That is, the same kind of stick tubes 19 are juxtaposed on the same base block 21, or different types of stick tubes 19 are juxtaposed on the same base block 21.
[0015]
A positioning member (not shown) supported by the supply side guide member is disposed between the stick tubes 19 and 19. The supply side guide member supports a pressing member (not shown) that pushes down the rear portion of the supply side distal end 20 for each stick tube 19. The supply-side guide member extends in the juxtaposed direction of the stick tubes 19 and has a rotating shaft whose both ends are supported by the supply-side support plate 31, and each positioning member and each pressing member are connected to the rotating shaft. The upper part is supported. The tail end side guide member also has the same rotation shaft as the supply side guide member, and both ends thereof are supported by the tail end side support plate 32.
[0016]
The contact member 24 is made of a material having an inverted L-shaped cross section, and has a contact plate 41 that contacts the tip of each stick tube 19 and the electronic component to be picked up at the upper back of the long side portion, and the contact plate. The rotary block 42 is screwed to the lower end portion of the long side portion 41 and is rotatably supported on the lower side of the base block 21. The rotation block 42 includes a support portion having a concave cross section and a connecting portion that protrudes downward and is connected to the air cylinder 25. A contact plate 41 is screwed to the support portion by a pair of mounting screws 43, 43 at both front ends thereof. Further, the support portion is rotatably supported on the convex portion 21 a below the base block 21 at a position above the mounting screw 43. On the other hand, the connecting portion is formed to project downward from the lower surface of the support portion, and is connected to the distal end portion of the rod 25a of the air cylinder 25 that moves forward and backward.
[0017]
In the contact member 24 configured as described above, the rod 25a moves forward, so that the rotation block 42 is in a vertical posture, and the contact plate 41 is also supported in the vertical posture (contact position). In this case, the contact plate 41 contacts the tip of the stick tube 19 and also contacts the electronic component to be picked up. Therefore, the leading end of the supply-side distal end portion 20 and the contact plate 41 constitute an electronic component take-out position. On the other hand, when the rod 25a is retracted, the rotation block 42 is in an inclined posture, and the contact plate 41 is also supported in the inclined posture (separated position). In this case, the contact plate 41 is separated from the tip of the stick tube 19 and the electronic component to be picked up.
[0018]
As shown in FIGS. 2 and 3, a stick feeder base 33 having a vibration device is provided under each base block 21 and further provided on the machine base 2 below the base 33. An attachment body 34 fixed to the feeder base 35 is provided. More specifically, a rail plate 37 is fixed to the upper portion of the feeder base 35 by bolts 36, and the mounting portion 34a of the mounting body 34 is paired with the mounting body 34 mounted on the rail plate 37. The guide body 38 is fixed by a bolt 39 so as to cover from above, and a U-shaped notch 34b formed on the end of the mounting body 34 is screwed into a screw hole 37a formed in the rail plate 37. The bolt 40 is fixed in a state of being fitted to the bolt 40. Further, the rail plate 37 and the mounting portion 34 a of the attachment body 34 are fixed by bolts 29 from the lower surface of the rail plate 37. A gap is formed between the contact member 24 and the rising member 35a attached to the front end of the feeder base 35 and extending upward. The bolt 40 and the notch 34b are located below the gap, and the upper portion of the bolt 40 is open. Further, a large space is formed below the bolt 29 between the machine base 2.
[0019]
Reference numeral 30 denotes a safety cover fixed on the feeder base 35. The safety cover 30 covers the electronic component supply device 6 to protect the supply device 6 and the operator. The length in the front-rear direction is substantially the same as that of the stick feeder base 33, the upper surface thereof is parallel to the inclined stick tube 19, the cross section is substantially U-shaped, and the lower end thereof is the feeder. It is fixed on the base 35.
[0020]
Here, a case where an electronic component is picked up by the suction nozzle 13 of the mounting head 12 will be briefly described focusing on the operation of the contact member 24. First, the base block 21 vibrates back and forth by the vibration device provided on the lower side of the base block 21, and the entire electronic component in the stick tube 19 moves to the distal end side of the supply-side distal end portion 20. In this case, the electronic component located at the forefront moves to the tip side while being pushed by the subsequent electronic component, contacts the contact plate 41 supported at the contact position, and stops at the take-out position. . Then, after the vibration by the vibration device is stopped, the mounting head 12 moves immediately above the take-out position.
[0021]
Next, the suction nozzle 13 descends and faces the opening formed in the supply-side tip 20 of the stick tube 19 at its tip, and sucks the electronic component held at the take-out position. Immediately before this adsorption, the rod 25a of the air cylinder 25 is retracted, and the contact plate 41 is rotated from the contact position to the separation position via the rotation block 42. Accordingly, the contact plate 41 that has been in contact with the electronic component is separated from the electronic component, and the electronic component is appropriately adsorbed without being supported by the contact plate 41. The sucked electronic component is pulled upward from the opening as the suction nozzle 13 rises.
[0022]
Thereafter, the mounting head 12 is moved onto the substrate 3 by the XY stage 14, the suction is released, and the electronic component is mounted at a predetermined position on the substrate 3. By repeating this operation, the electronic components in the stick tube 19 are sequentially mounted on the substrate 3 one by one.
[0023]
Here, the safety cover 30 provided on the feeder base 35 becomes an obstacle when the type of electronic component is switched or when the maintenance of the electronic component supply device 6 is performed. In particular, when an operation such as the supply-side tip portion 20 of the electronic component supply device 6 occurs, the operation cannot be performed because of the safety cover 30.
[0024]
In this case, the bolt 40 is first loosened with a tool from above and the bolt 29 is removed with a tool from below. At this time, the upper portion of the bolt 40 is opened, and a large space is formed below the bolt 29, and there is no obstruction. Therefore, the bolt 40 can be easily loosened from above or below using a tool and the bolt 29 is removed. be able to. Then, as shown in FIG. 4, along the rail plate 37, the mounting portion 34 a is slid on the rail plate 37 to move the electronic component supply device 6 in a direction away from the mounting device main body (outward). Thereby, even if it is the supply side front-end | tip part 20 of the electronic component supply apparatus 6, the said safety cover 30 does not become obstructive, and repair, maintenance, etc. can be performed.
[0025]
Although the embodiments of the present invention have been described above, various alternatives, modifications, and variations can be made by those skilled in the art based on the above description, and the present invention is not limited to the above-described alternatives, modifications, or modifications. It includes modifications.
[0026]
【The invention's effect】
As described above, according to the present invention, in an electronic component mounting apparatus provided with an electronic component supply device that includes an electronic component stored on a feeder base and includes a stick tube disposed obliquely forward and downward, the electronic component supply Even if there is a safety cover that covers the upper part of the apparatus and protects the electronic component supply device, it is possible to improve workability during maintenance of the electronic component supply device.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing a chip mounter.
FIG. 2 is a side view showing an electronic component supply device for a stick tube.
3 is a cross-sectional view taken along the line AA in FIG.
FIG. 4 is a side view showing a state in which an electronic component supply device for a stick tube is moved.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Multifunctional chip mounter 2 Machine base 3 Board | substrate 6 Component supply apparatus 7 Component mounting apparatus 12 Mounting head 13 Adsorption nozzle 19 Stick tube 29, 40 Bolt 33 Stick feeder base 34 Attachment body 35 Feeder base 37 Rail board 38 Guide body

Claims (1)

An electronic component supply device including a stick tube disposed obliquely forward and storing electronic components on a feeder base is provided, and a safety cover is provided to cover and protect the electronic component supply device. In the electronic component mounting apparatus for picking up the electronic component from the suction nozzle and mounting it on the printed circuit board, the electronic component supply device is fixed to the feeder base by a fixing member, and the fixing by the fixing member is removed. An electronic component mounting apparatus, wherein the electronic component mounting apparatus is movable in a direction away from the safety cover along a feeder base.

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