JP4260507B2 - Electronic component mounting device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a beam that can be moved by a driving source along a guide rail provided on an apparatus base, a mounting head that can be moved by a driving source in a direction along the beam, and each component provided in the mounting head. The present invention relates to an electronic component mounting apparatus including a suction nozzle capable of sucking an electronic component from a supply unit.
[0002]
[Prior art]
In this type of electronic component mounting apparatus, a nozzle filter is installed in the vacuum circuit in order to remove foreign matters such as dust in order to keep the vacuum circuit of the suction nozzle clean (for example, see Japanese Patent Laid-Open No. Hei. 7-302999). The nozzle filter is fastened to the mounting head with a set screw, and is further fixed with a hexagon nut to prevent the set screw from loosening.
[0003]
[Patent Literature]
JP-A-7-302999 [0004]
[Problems to be solved by the invention]
However, when mounting the nozzle filter, the nozzle filter may be damaged due to overtightening of the set screw, making it difficult to fix it firmly to the mounting head, and conversely, the set screw and the hexagon nut to prevent the set screw from loosening. Therefore, there are cases where the nozzle filter cannot be securely fixed because two steps of work are required for fixing.
[0005]
Therefore, when attaching the nozzle filter to the mounting head, an object is to securely fix the nozzle filter without damaging it.
[0006]
[Means for Solving the Problems]
For this reason, the first invention provides a beam that can be moved by a drive source along a guide rail provided on the apparatus base, a mounting head that can be moved by the drive source in a direction along the beam, and a mounting head. In an electronic component mounting apparatus provided with a suction nozzle that is capable of sucking electronic components from each component supply unit, the filter mounting unit includes a filter body and a filter element attached to the filter body, and communicates with a vacuum source. A nozzle filter housed in the filter housing portion through the insertion opening, and a part of the filter body housed in a state where the filter element is attached to the filter housing portion from outside the mounting head solid to the mounting head by screws while pressing the part of the filter body in pressing piece and presser pieces to Characterized by comprising a pressing member having a fixing piece to be.
[0007]
According to a second aspect of the present invention, there is provided a beam movable by a drive source along a guide rail provided on the apparatus base, a mounting head movable by the drive source in a direction along the beam, and the mounting head. An electronic component mounting apparatus including a suction nozzle capable of sucking an electronic component from each component supply unit includes a filter body and a filter element attached to the filter body, and is provided in the mounting head and communicates with a vacuum source. A nozzle filter housed in the filter housing part through the insertion opening and a part of the filter body housed in a state where the filter element is attached to the filter housing part are pressed from the outside of the mounting head. mounting f with screws through the elongated hole in a state in which the pressing piece and the presser presses a part of the filter body in pieces And a pressing member having a fixing piece which is fixed to de, characterized by being able to remove the nozzle filter by releasing the pressing by the pressing pieces from the filter housing part by loosening the screw.
[0008]
Furthermore, the third invention provides a beam that can be moved by a driving source along a guide rail provided on the apparatus base, a mounting head that can be moved by the driving source in a direction along the beam, and a mounting head that is provided on the mounting head. An electronic component mounting apparatus including a suction nozzle capable of sucking an electronic component from each component supply unit includes a filter body and a filter element attached to the filter body, and is provided in the mounting head and communicates with a vacuum source. A nozzle filter housed in the filter housing part through the insertion opening and a part of the filter body housed in a state where the filter element is attached to the filter housing part are pressed from the outside of the mounting head. mounting f with screws through the elongated hole in a state in which the pressing piece and the presser presses a part of the filter body in pieces A presser member having a fixing piece fixed to the door, and by releasing the screw without removing the screw, the pressure by the presser piece is released and the presser member is rotated to remove the nozzle filter from the filter storage portion. It is characterized in that it can be removed.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments will be described with reference to the drawings. 1 is a plan view of the electronic component mounting apparatus 1, and FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1. Various electronic components are placed on the front and rear of the machine base 2 of the electronic component mounting apparatus 1. A plurality of well-known component supply units (not shown) that supply one by one to a component take-out portion (component suction position) are arranged side by side. A supply conveyor 3, a positioning unit 4, and a discharge conveyor 5 are provided at an intermediate portion of the mounting apparatus 1 so that the conveyance direction of the printed board P is the left-right direction. The supply conveyor 3 conveys the printed circuit board P received from the upstream to the positioning unit 4, and after the electronic components are mounted on the substrate P positioned by the positioning mechanism (not shown) by the positioning unit 4, the conveyance is conveyed to the discharge conveyor 5. Is done.
[0010]
Reference numeral 6 denotes a beam that is long in the X direction. The beam is placed on the positioning unit 4 along a pair of left and right guide rails 8 provided on the machine base 2 by driving left and right linear motors 7 that are Y-axis drive sources described later. The printed circuit board P and the parts supply unit of the parts supply unit are individually moved in the Y direction above the part pick-up part (part suction position).
[0011]
More specifically, the machine base 2 is composed of a machine base body 2A and left and right vertical blocks 2B, and a guide rail 8 on which a slider 9 slides is attached to the upper part of each vertical block 2B. A pair of magnet bases 11 extending horizontally back and forth are attached to the upper part of the vertical block 2B. The linear motor 7 includes left and right stators 13 each including a magnet base 11 and a magnet 12, and a mover 14 fixed to the slider 9 with a slight gap from the stator 13. .
[0012]
As shown in FIG. 3, the beam 6 has a head that moves separately along the upper and lower guide rails 21 by driving a linear motor (not shown) as an X-axis drive source in the longitudinal direction, that is, the X direction. Mounting heads 23 and 23 are provided on attachment bodies 22 and 22 so as to be vertically movable along guides (not shown) by respective vertical axis motors (not shown). Six suction nozzles 27 are provided at equal intervals on a nozzle mounting body 26 constituting a part of each mounting head 23, 23, and each nozzle mounting body 26 is rotated around a vertical axis by a θ-axis motor 28. Further, the suction side end of any of the six suction nozzles 27 is selected by the nozzle selection motor 29 so as to face downward so that the electronic component can be attached by vacuum suction. The
[0013]
Accordingly, the suction nozzles 27 of the two mounting heads 23 and 23 can move in the X direction and the Y direction, can rotate around a vertical line, and can move up and down.
[0014]
As shown in FIG. 2, a pair of upper and lower guide rails 21 are formed on the front side surface of the beam 6 having a U-shaped cross section, and each slider (not shown) movable along the rails 21 is attached to the head. It is provided on the back surfaces of the bodies 22 and 22.
[0015]
Then, the cable for the mounting heads 23 and the air tube 40 with good pressure resistance that constitutes the vacuum path when the suction nozzle 27 is operated are arranged in parallel, and each is fixed with an adhesive and made into a substantially flat plate, and the flat cable 50 , 50 is formed. Further, in a state where the flat cables 50 and 50 are stacked in two stages, one end is connected to the vertical axis motor, the θ-axis motor 28, the nozzle selection motor and the mounting heads 23 and 23, and the other end is a control circuit. It is held by a fixing member (not shown) while connected to a substrate (not shown) or a vacuum source (also an air supply source, not shown).
[0016]
3, one end of the air tube 40 is connected to the mounting head 23 via a connector 41, and the other end is a vacuum source (also an air supply source) via a suction system switching valve (not shown). ). Reference numeral 42 denotes a fluid communication path formed in the mounting head 23, one end communicating with the connector 41 and the other end communicating with a fluid communication path 43 formed in the nozzle mounting body 26. The fluid communication path 43 of the nozzle mounting body 26 communicates with the communication path in the suction nozzle 27, and a connection port 44 is opened in the middle of the fluid communication path 43. In addition, the nozzle mounting body 26 is provided with a filter storage portion 45 communicating with the connection port 44, and is connected to the communication port of the nozzle filter 30 stored in the filter storage portion 45 from the upper surface opening 46 </ b> A for insertion of the cutting portion 46. It is the structure which can communicate with the port 44.
[0017]
The nozzle filter 30 removes dust and the like contained in the air when the suction nozzle 27 sucks electronic components so as not to adversely affect the suction system switching valve.
[0018]
As shown in FIG. 8, the nozzle filter 30 includes a filter body 60 and a filter element 61. The suction nozzle side connection port 62 is opened at the end face of the nozzle filter 30, and four vacuum circuit side connection ports 63 communicating with the suction nozzle side connection port 62 are opened on the outer circumferential surface of the central portion in the full length direction. Yes. The four vacuum circuit side connection ports 63 are each opened at a relative angle of 90 degrees, and the filter element 61 is kept in contact with the stopper portion 64 in such a state that each connection port 63 is wrapped from the outer peripheral side. It is inserted.
[0019]
Reference numeral 65 denotes a guide surface when the nozzle filter 30 is stored in the filter storage portion 45 from the upper surface opening 46A of the excision portion 46, and the inner surface of the filter storage portion 45 and the outer surface of the guide surface 65 are fitted with a slight gap. . A flange 66 serves as an insertion end when the nozzle filter 30 is inserted into the filter housing 45 and is slightly thicker than the outer diameter of the guide surface 65. The connection port 44 is formed to have a smaller diameter than the outer diameter of the filter storage unit 45 from the upper surface opening 46A of the cylindrical filter storage unit 45, and the lower end surface of the flange 66 abuts on the edge of the connection port 44. In this state, the nozzle filter 30 is positioned in the axial direction.
[0020]
Reference numeral 67 denotes a knob provided on the head of the nozzle filter 30. The knob 67 has a fan-like shape in plan view, and has a flat portion with a relative angle of 67A and 67B of 90 degrees on the outer side. The flat portions 67A and 67B are formed corresponding to the two side surfaces of the cut portion 46 of the nozzle mounting body 26, and are processed in advance to increase the area of the knob 67 as much as possible.
[0021]
4 to 7, reference numeral 32 denotes a pressing plate having a substantially L-shaped cross section, which is a pressing member of the nozzle filter 30, and includes a pressing piece 32A and a fixing piece 32B. The holding piece 32A presses the flange 66 of the nozzle filter 30 inserted into the filter housing portion 45 and the edge of the upper surface opening 46A of the nozzle mounting body 26 to prevent the nozzle filter 30 from being displaced in the axial direction, and from the outside of the holding piece 32A. The end surface portion presses the outer diameter surface of the nozzle filter 30 to prevent the circumferential position shift of the nozzle filter 30. Further, the fixed piece 32B has a long hole 33 formed in the center of the flat surface, and is in close contact with the flat surface portion of the nozzle mounting body 26, and the screw 34 is formed in the side wall of the nozzle mounting body 26 through the long hole 33. By inserting and tightening (not shown), the nozzle filter 30 can be fixed to the nozzle mounting body 26 in a state where the nozzle filter 30 is pressed by the pressing piece 32A. That is, as shown in FIG. 5 as viewed from the front, the position of the screw 34 is fixed in a state closer to the pressing piece 32A side of the long hole 33.
[0022]
With the above configuration, the production operation of the electronic component mounting apparatus 1 will be described. First, the printed circuit board P is conveyed from the upstream device to the positioning unit 4 via the supply conveyor 3 by a conveyor (not shown), and is positioned and fixed by the positioning mechanism.
[0023]
Next, according to the mounting order according to the mounting data in which the XY coordinate position to be mounted on the printed circuit board P stored in the storage device (not shown), the rotation angle position about the vertical axis, the arrangement number of each component supply unit, and the like are designated. An electronic component to be mounted by each of the suction nozzles 27 corresponding to the component type of the electronic component is picked up and taken out from a predetermined component supply unit.
[0024]
That is, the linear motor 7 is driven in the Y direction and the beam 6 is moved along the pair of guide rails 8. The linear motor (not shown) is driven in the X direction so that the mounting heads 23 and 23 do not collide. It moves so as to be positioned above the component supply unit that stores the electronic components to be sequentially mounted.
[0025]
Since the predetermined supply unit has already been driven and components can be taken out at the component suction position, the suction nozzles 27, 27 selected by the nozzle selection motor 29 of each mounting head 23, 23 are moved to the vertical axis motor ( The electronic component is lowered and sucked and taken out. At this time, a vacuum source (also an air supply source) sucks vacuum through the filter element 61 of the nozzle filter 30 to remove dust and the like, and the electronic component is sucked and taken out by the suction nozzle 27. Then, the electronic component is moved upward above the printed circuit board P, the vacuum suction is stopped from an air supply source (also a vacuum source), and air is supplied to the electronic component by the suction nozzle 27 while the air is supplied. Mounted in position.
[0026]
When the mounting of all electronic components on the printed circuit board P is completed, the printed circuit board P is conveyed from the positioning unit 4 to the discharge conveyor 5.
[0027]
Here, when the total operation time elapses, the electronic component mounting apparatus 1 is stopped, and the operator must perform an operation of replacing the filter element 61 to which dust or the like of the nozzle filter 30 is attached. In this case, as shown in FIGS. 6 and 7, first, the screw 34 is loosened and the presser plate 32 is lifted and floated through the long hole 33, and from this state, the presser plate 32 is moved clockwise 60. The nozzle filter 30 is released by turning about 90 degrees. Thereafter, it is possible to remove the nozzle filter 30 by raising it from the filter housing 45 and pulling it out.
[0028]
When the nozzle filter 30 in which only the new nozzle filter 30 or the filter element 61 is replaced is mounted on the nozzle mounting body 26, the nozzle filter 30 is stored while being inserted into the filter storage portion 45 from the upper surface opening 46A of the cutting portion 46.
[0029]
At that time, the filter element 61 is carefully inserted while being guided by the guide surface 65 so that the filter element 61 is not damaged, and is inserted until the lower end surface of the flange 66 contacts the edge of the connection port 44. The vertical connection positions of the side connection port 63 and the fluid communication path 43 are matched, and then the pressing plate 32 is rotated counterclockwise to be lowered along the elongated hole 33, and is moved to the filter housing portion 45 by the pressing piece 32 </ b> A. The flange 66 of the inserted nozzle filter 30 and the edge of the upper surface opening 46A of the nozzle mounting body 26 are pressed, and the outer diameter surface of the nozzle filter 30 is pressed by the outer end surface portion of the pressing piece 32A. By tightening the screw 34 in this state, the nozzle filter 30 can be fixed to the nozzle attachment body 26 while the nozzle filter 30 is pressed by the pressing piece 32A.
[0030]
In addition, two vacuum circuit side connection ports 63 communicating with the established suction nozzle side connection port 62 are opened at the end face portion of the nozzle filter 30, and each of the two vacuum circuit side connection ports 63 is set at a relative angle of 90 degrees. The flat portions 67A and 67B of the knob 67 on the head of the nozzle filter 30 are formed corresponding to the two side surfaces of the cut portion 46 of the nozzle mounting body 26, and two axes perpendicular to the flat portions 67A and 67B are formed. The central axis of each vacuum circuit side connection port 63 may be processed coaxially to serve as a positioning indicator when the nozzle filter 30 is attached to the nozzle mounting body 26.
[0031]
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 various alternatives described above without departing from the spirit of the present invention. It includes modifications or variations.
[0032]
【The invention's effect】
As described above, according to the present invention, when the nozzle filter is attached to the mounting head, it can be reliably fixed without damaging the nozzle filter. In addition, the part holding the nozzle filter is clearly visible, and the fixing method is clear, so the nozzle filter can be securely attached without damaging it. Furthermore, since the replacement work can be performed without removing the pressing member and screws, there is no risk of losing these parts. Conventionally, a plurality of tools were used as tools to be used. However, replacement work can be performed with one tool, and the work can be simplified.
[Brief description of the drawings]
FIG. 1 is a plan view of an electronic component mounting apparatus.
FIG. 2 is a cross-sectional view taken along the line AA of FIG.
FIG. 3 is a right side view of a part of the electronic component mounting apparatus.
FIG. 4 is a right side view of the nozzle mounting body.
FIG. 5 is a front view of a nozzle mounting body.
FIG. 6 is a right side view of the nozzle attachment body in the middle of the operation of removing the nozzle filter.
FIG. 7 is a front view of the nozzle mounting body during the operation of removing the nozzle filter.
FIG. 8 is a perspective view of a nozzle filter.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 2 Machine base 6 Beam 23 Mounting head 26 Nozzle attachment body 27 Adsorption nozzle 30 Nozzle filter 32 Holding plate 32A Holding piece 32B Fixing piece 33 Long hole 34 Screw 45 Filter accommodation part 46A Upper surface opening 60 Filter body 61 Filter element 66 Flange

Claims (3)

A beam that can be moved by a drive source along a guide rail provided on the apparatus base, a mounting head that can be moved by the drive source in a direction along the beam, and an electron from each component supply unit provided in the mounting head In an electronic component mounting apparatus including a suction nozzle capable of sucking a component, an opening for insertion in a filter storage unit provided in the mounting head and including a filter body and a filter element attached to the filter body and communicating with a vacuum source A presser piece for pressing a part of the filter main body stored in a state where the filter element is attached to the filter storage part from the outside of the mounting head. having a fixed piece which is fixed to the mounting head by screws while pressing the part of the filter body An electronic component mounting apparatus characterized by comprising a pressing member. A beam that can be moved by a drive source along a guide rail provided on the apparatus base, a mounting head that can be moved by the drive source in a direction along the beam, and an electron from each component supply unit provided in the mounting head In an electronic component mounting apparatus including a suction nozzle capable of sucking a component, an opening for insertion in a filter storage unit provided in the mounting head and including a filter body and a filter element attached to the filter body and communicating with a vacuum source A presser piece for pressing a part of the filter main body stored in a state where the filter element is attached to the filter storage part from the outside of the mounting head. solid is fixed to the mounting head by a screw through the elongated hole while pressing the part of the filter body And a pressing member having a single electronic component mounting apparatus is characterized in that as removal of the said nozzle filter by releasing the pressing by the pressing pieces from the filter housing part by loosening the screw. A beam that can be moved by a drive source along a guide rail provided on the apparatus base, a mounting head that can be moved by the drive source in a direction along the beam, and an electron from each component supply unit provided in the mounting head In an electronic component mounting apparatus including a suction nozzle capable of sucking a component, an opening for insertion in a filter storage unit provided in the mounting head and including a filter body and a filter element attached to the filter body and communicating with a vacuum source A presser piece for pressing a part of the filter main body stored in a state where the filter element is attached to the filter storage part from the outside of the mounting head. solid is fixed to the mounting head by a screw through the elongated hole while pressing the part of the filter body A pressing member having a piece, and by releasing the screw without removing the screw, the pressing by the pressing piece is released and the pressing member is rotated so that the nozzle filter can be removed from the filter housing portion. An electronic component mounting apparatus characterized by the above.

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