JP2017123443A - Surface mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lower the temperature of a heat-generating object, such as a motor, by ventilating the interior using the movement of beams.SOLUTION: A surface mounting device 1 for mounting an electronic component on a printed board P includes a surface mounting device body 10, and a cover 100 covering the surface mounting device body. The surface mounting device body 10 includes first beams 21-23, second beams 41A-41D supported movably in the first direction on the first beams 21-23, and mounting heads 70A-70D supported on the second beams 41A-41D. The cover 100 has more than one intake/exhaust holes 115, 116, 125, 126 at the positions corresponding to the movement range of the second beams 41A-41D. The more than one intake/exhaust holes 115, 116, 125, 126 are located while spaced apart in the first direction, and ventilate the air in the cover 100 as the second beams 41A-41D move in the first direction.SELECTED DRAWING: Figure 9

Description

  The present invention relates to a technique for cooling a surface mounter.

  2. Description of the Related Art Conventionally, surface mounters that mount electronic components on a printed circuit board are known. The surface mounter has a motor, a linear motor, or the like as a drive source. When these motors and linear motors generate heat, structural members such as the X beam and the Y beam are thermally expanded, and thus cooling is preferable.

  Patent Document 1 below describes the following points in this type of surface mounter. The X beam that supports the mounting head so as to be movable in the X direction is provided with an intake / exhaust port pair composed of an upper intake / exhaust port and a lower intake / exhaust port formed so as to communicate with each other through a hollow portion. . Then, when the X beam moves in the Y direction orthogonal to the X direction, a relative air flow flows between the upper intake and exhaust ports and the lower intake and exhaust ports through the hollow portion. As a result, the X beam is cooled by air. Is done. That is, in Patent Document 1, the X beam is cooled by flowing air into the X beam through the intake and exhaust ports.

JP 2011-258806 A

By the way, when the surface mounter main body is covered with a cover, heat is generated in the cabinet surrounded by the cover, and the temperature of a heating element such as a motor is unlikely to decrease.
The present invention has been completed based on the above-described circumstances, and an object thereof is to lower the temperature of a heating element such as a motor by ventilating the inside of the warehouse using the movement of a beam.

  The present invention is a surface mounter for mounting an electronic component on a printed circuit board, comprising a surface mounter body and a cover that covers the surface mounter body, the surface mounter body including a first beam, A second beam supported so as to be movable in a first direction with respect to the first beam; and a mounting head supported with respect to the second beam, wherein the cover has a moving range of the second beam. At least two intake / exhaust holes, the two intake / exhaust holes are located apart from each other in the first direction, and the inside of the cover is moved along with the movement of the second beam in the first direction. Ventilate the air.

  In this configuration, in this configuration, when the second beam moves in the first direction, air is taken into the chamber from the outside at the one side intake / exhaust hole, and the air inside the chamber is exhausted to the outside through the other side intake / exhaust hole. The Therefore, it is possible to ventilate the interior covered with the cover without using a fan, and the temperature of the heating element in the interior can be lowered.

The following configuration is preferable as an embodiment of the present invention.
The second beam reciprocates in the first direction between a component extraction position where the mounting head picks up an electronic component from a feeder and a mounting work area where the mounting head mounts the electronic component on a printed circuit board, Of the two intake / exhaust holes, one intake / exhaust hole is at a position corresponding to the component extraction position, and the other intake / exhaust hole is at a position corresponding to the mounting work area.

  In this configuration, the inside of the cabinet can be ventilated by using an operation in which the second beam moves from the component extraction position to the mounting work area. Further, the inside of the cabinet can be ventilated by using an operation in which the second beam moves from the mounting work area to the component extraction position.

  The surface mounter body includes a linear motor that moves the second beam in the first direction with respect to the first beam, and the linear motor is provided on the first beam and includes a stator made of a magnet. And a mover provided on the second beam and made of an electromagnetic coil. In this structure, the electromagnetic coil provided in the 2nd beam can be cooled by ventilating the inside of a store | warehouse | chamber.

  A fan for cooling the electromagnetic coil of the second beam is provided corresponding to a position where the stop frequency is high in the moving range of the second beam. In this configuration, since the frequency of cooling the electromagnetic coil with the fan is increased, the electromagnetic coil can be efficiently cooled.

  The position where the stop frequency is high is a component extraction position where the mounting head extracts an electronic component from a feeder in the movement range of the second beam, and the electromagnetic wave of the second beam corresponds to the component extraction position. The fan for cooling the coil. In this configuration, since the electronic component is taken out from the feeder, the electromagnetic coil can be cooled by the fan each time the X beam moves to the component taking-out position.

  A fan that cools the electromagnetic coil of the second beam from the first direction that is the moving direction of the second beam; In this configuration, the electromagnetic coil can be cooled by the fan not only during the period when the second beam is stopped but also during movement.

  The present invention is a surface mounter for mounting electronic components on a printed circuit board, and is a surface mounter for mounting electronic components on a printed circuit board, the surface mounter body, and a cover that covers the surface mounter body, The surface mounter body includes a first beam, a second beam supported to be movable in a first direction with respect to the first beam, and a mounting head supported with respect to the second beam. The cover has an intake / exhaust hole at a position corresponding to a component take-out position where the mounting head takes out the electronic component from the feeder, and the intake / exhaust hole is used to move the second beam in the first direction. Along with this, the air in the cover is ventilated.

  In this configuration, when the second beam moves away from the component extraction position in the first direction, air is sucked in from the outside through the intake / exhaust hole, and oppositely, the second beam moves in the first direction and moves to the component. When approaching the take-out position, the air in the cabinet can be exhausted through the intake hole.

  According to the present invention, the heating element in the warehouse can be cooled by ventilating the interior using the movement of the second beam.

1 is a perspective view of a surface mounter according to Embodiment 1. FIG. Front view of surface mounter Plan view of surface mounter Perspective view of batch exchanging cart and feeder Perspective view of the surface mounter body Perspective view of mounting head 70 and X beam Front view of mounting head 70 and X beam (partially shown in cross section) Plan view of the surface mounter body Plan view of the surface mounter body The top view of the surface mounter main part concerning Embodiment 2 Front view of mounting head 70 and X beam (partially shown in cross section) The top view of the surface mounter main part concerning Embodiment 3

<Embodiment 1>
The first embodiment will be described with reference to FIGS. 1 is a perspective view of the surface mounter, FIG. 2 is a front view of the surface mounter, and FIG. 3 is a plan view of the surface mounter. FIG. 4 is a perspective view of the batch exchanging cart and the feeder. FIG. 5 is a perspective view of the surface mounter body.

  The surface mounter 1 includes a surface mounter body 10 that mounts electronic components on a printed circuit board P, and a cover 100 that covers the surface mounter body 10. In the following description, the conveyance direction of the printed circuit board P is assumed to be the X direction (front-rear direction). In addition, a direction orthogonal to the conveyance direction of the printed circuit board P is a Y direction (left-right direction), and a vertical direction is a Z direction. The Y direction is the “first direction” of the present invention, and the X direction is the “second direction” of the present invention. 2 indicates the center of the surface mounter 1 in the Y direction.

1. Configuration of Cover The cover 100 includes a front cover 110 that covers the front surface of the surface mounter body 10, a rear cover 120 that covers the rear surface of the surface mounter body 10, and end covers 130 that cover the four corners of the surface mounter body 10. The upper surface cover 150 covers the upper surface of the surface mounter main body 10.

  The front cover 110 is divided into two covers 110A and 110B at the center, and each cover 110A and 110B covers the front left half and the front right half of the surface mounter main body 10 in a shared manner. As shown in FIG. 1, a carry-in port 113 for the printed board P is provided at the center of the front cover 110, and the printed board P can be carried into the surface mounter body 10.

  The rear cover 120 has the same structure as the front cover 110, and covers the left half of the rear surface and the right half of the rear surface by the two covers divided at the center. A carry-out port (not shown) is provided at the center of the rear cover 120 so that the printed circuit board P that has been subjected to the mounting process is carried out from the surface mounter body 10.

  As shown in FIG. 1, the upper surface cover 150 includes side covers 150A and 150B and a center cover 150C. The center cover 150 </ b> C has a shape that is long in the front-rear direction, and covers the center upper portion of the surface mounter body 10. The side covers 150A and 150B are located on the left and right sides of the center cover 150C, and cover the upper left half and upper right half of the surface mounter main body 10. Each of the side covers 150A and 150B can be opened and closed.

  Further, on both the left and right sides of the surface mounting machine 1, there are provided mounting spaces S for attaching feeders F for supplying electronic components. In the present embodiment, the feeder F is attached to the mounting space S via a carriage G shown in FIG. 4, and a large number of feeders F can be replaced at once.

2. FIG. 5 is a perspective view of the surface mounter body, and FIG. 6 is a perspective view of the mount head. The surface mounter main body 10 includes a base 11, a transfer conveyor 15, three Y beams (corresponding to the “first beam” of the present invention) 21 to 23, and four X beams (the “first beam of the present invention”). 41A to 41D, four mounting heads 70A to 70D, an X motor 80, and a Y motor 90. The X beams 41A to 41D are collectively referred to as 41.

  The base 11 has a rectangular shape in plan view and has a flat upper surface. The conveyor 15 is disposed at a substantially central position of the base 11 in the Y direction. The conveyor 15 includes a pair of conveyor belts that circulate in the X direction, and conveys the printed circuit board P on the base 11 in the X direction. In the present embodiment, two mounting work positions are set in the center of the base, and the printed circuit board P carried in from the carry-in port 113 of the front cover 110 is subjected to the mounting work at each mounting work position, and then the rear cover. It is structured to be carried out from 120 carry-out ports.

  The three Y beams 21 to 23 are made of metal such as aluminum die cast, for example. The Y beam 21 is disposed at the front end of the base 11, the Y beam 22 is disposed at the center of the base 11, and the Y beam 23 is disposed at the rear end of the base 11. The Y beams 21 to 23 are long in the Y direction and are arranged in parallel to the Y direction. Among these Y beams 21 to 23, an opening 24 is formed in the center in the Y direction to convey the printed circuit board P.

  On the upper surface of the Y beam 21 to the Y beam 23, a Y rail 25 is arranged along the Y direction. One Y rail 25 is provided for each of the front and rear Y beams 21 and 23, and two Y rails 25 are provided for the center Y beam 22. A holding plate 31 is provided on the upper surfaces of the Y beams 21 and 23.

  The holding plate 31 is made of metal such as aluminum die cast, for example. Similar to the Y beams 21 and 23, the holding plate 31 has a long shape in the Y direction. As will be described later, magnets 91 and 92 are held on the inner surface side of the holding plate 31. In addition, through holes 32 are formed in the holding plate 31 at regular intervals in the Y direction.

  The X beams 41A and 41B are made of metal such as aluminum die cast, for example. The X beams 41A to 41B have a shape that is long in the X direction, and beam blocks 43 are fixed to both ends in the X direction.

  As shown in FIGS. 5 and 6, the X beam 41A and the X beam 41B are arranged so as to straddle the Y beam 21 and the Y beam 22 in the X direction. Sliders 45 are fixed to the lower surfaces of the beam blocks 43 at both ends. Each slider 45 is slidably fitted to the Y rail 25 arranged on the upper surface of the Y beams 21 and 22. From the above, the X beams 41A and 41B can slide in the Y direction by the guide action of the slider 45 and the Y rail 25.

  The X beams 41 </ b> C and 41 </ b> D have the same structure, and each slider 45 is slidably fitted to the Y rail 25 disposed on the upper surfaces of the Y beams 22 and 23. From the above, the X beams 41C and 41D can slide in the Y direction by the guide action of the slider 45 and the Y rail 25.

  As described above, the X beams 41A and 41B are supported by the Y beams 21 and 22 so as to be slidable in the Y direction, and the X beams 41C and 41D are slidable in the Y direction by the Y beams 22 and 23. It is supported.

  The mounting heads 70A to 70D are attached to the X beams 41A to 41D through the base plate 75 so as to be slidable in the X direction. 6 is an X rail installed on the X beam 41C, and 72 is a slider installed on the base plate 72. The slider 72 is slidably fitted to the X rail 42, and the mounting head 70 </ b> C slides in the X direction with respect to the X beam by the guide action of the X rail 42 and the slider 72.

  The mounting heads 70 </ b> A to 70 </ b> D are rotary type heads that can rotate as a whole around an axis in the Z direction, and support a plurality of mounting shafts 73 at equal intervals in the circumferential direction.

  A suction nozzle (not shown) is detachably attached to the lower end of each mounting shaft 73. The suction nozzle sucks the electronic component by the supplied negative pressure, and opens the sucked electronic component by supplying the positive pressure.

  Next, an X motor 80, which is an example of a drive device that moves the mounting heads 70A to 70D in the X direction, will be described. As shown in FIG. 6, in the X beam 41C, a plurality of magnets 81 are arranged in the X direction so that the polarities are alternately arranged. On the other hand, an electromagnetic coil 85 is fixed to the mounting head 70C. The electromagnetic coil 85 is wound around the core and faces the magnet 81 with a gap. The magnet 81 and the electromagnetic coil 85 are a stator and a mover, and constitute a linear motor. Therefore, when the electromagnetic coil 85 is energized, a propulsive force in the X direction is generated, and the mounting head 70C can be reciprocated in the X direction. The X beams 41A, 41B, and 41D also have an X motor 80 similar to the X beam 41C, and the four mounting heads 70A to 70D can move independently in a reciprocating manner in the X direction. Yes.

  Next, the Y motor 90, which is an example of a drive device that moves the X beams 41A to 41D and the mounting heads 70A to 70D in the Y direction, will be described. As shown in FIG. 7, among the beam blocks 43 positioned on both sides in the X direction of the X beam 41A, an electromagnetic coil 95A is fixed to the outer (left side in FIG. 7) beam block 43. The electromagnetic coil 95A is wound around the core. On the other hand, on the holding plate 31 fixed on the Y rail 21, magnets 91 and 92 are arranged on both upper and lower sides of the electromagnetic coil 95A with a gap from the electromagnetic coil 95A. The magnets 91 and 92 are arranged in the Y direction so that the polarities are alternately arranged.

  The magnets 91 and 92 and the electromagnetic coil 95A are a stator and a mover, and constitute a linear motor. Therefore, when the electromagnetic coil 95A is energized, a propulsive force in the Y direction is generated, and the X beam 41A and the mounting head 70A can be reciprocated in the Y direction.

  Similarly to the X beam 41A, the X beams 41B to 41D also have electromagnetic coils 95B to 95D, respectively. The four X beams 41A to 41D and the four mounting heads 70A to 70D are independent of each other. It is structured to reciprocate in the direction.

  The surface mounter main body 10 is a front and rear two-stage type as shown in FIG. 8, and the mounting head 70A and the mounting head 70B are used at the front mounting work position shown in the lower position in FIG. Thus, the mounting operation of the electronic components on the printed circuit board P1 is performed. Further, in the rear mounting work position shown in the upper position in FIG. 8, the mounting work of the electronic components on the printed circuit board P2 is performed using the mounting head 70C and the mounting head 70D.

  The mounting head 70A and the mounting head 70B alternately perform the mounting operation of the electronic component and the operation of taking out the electronic component from the feeder F. Similarly, the mounting head 70 </ b> C and the mounting head 70 </ b> D alternately perform the mounting operation of the electronic component and the operation of taking out the electronic component from the feeder. Thus, by alternately performing the operations with the two mounting heads 70, it is not necessary to interrupt the mounting operation for the time to take out the electronic components from the feeder F, and the mounting efficiency can be improved.

3. Moving Range of X Beam The mounting heads 70A to 70D perform an operation of picking up an electronic component from the feeder F and an operation of mounting the electronic component on the printed board P. In order to perform these two operations, it is necessary to reciprocate the mounting heads 70A to 70D in the Y direction, and the movement range in the Y direction of the X beams 41A to 41D is determined in relation to these two operations.

  In the following description, “component extraction position Pu” refers to a stop position (stop position in the Y direction) of X beams 41A to 41D when mounting heads 70A to 70D perform an operation of picking up an electronic component from feeder F. Shall mean. In the example of FIG. 9, the two X beams of the X beam 41B and the X beam 41C are stopped at the component extraction position Pu.

  The “mounting work area J” is a movement range (Y-direction movement range) of the X beams 41 </ b> A to 41 </ b> D when the mounting heads 70 </ b> A to 70 </ b> D perform a mounting work for mounting electronic components on the printed circuit board P. Means. In the example of FIG. 9, two X beams, the X beam 41A and the X beam 41D, are located in the mounting work area J.

  Since the X beams 41A to 41D reciprocate between the component extraction position “Pu” and the mounting work area “J”, the movement range in the X beams 41A to 41DY direction is “Ua” as shown in FIG. ~ Ud ". “K1” is a stroke end on the outside in the Y direction (base outside) of the X beams 41A to 41D, and “K2” is a stroke end on the inside in the Y direction (base center side) of the X beams 41A to 41D.

4). By the way, the surface mounting machine main body 10 is entirely covered with the cover 100 except for the attachment space S of the feeder F. When the feeder F is attached, the entire surface mounting machine body 10 is covered with the cover 100. Therefore, when the electromagnetic coil 85 of the X motor 80 or the electromagnetic coil 95 of the Y motor 90 generates heat, heat is generated in the chamber (inside the cover), and the temperature of the heating elements such as the electromagnetic coils 85 and 95 is difficult to decrease. .

  Therefore, in the present embodiment, two intake / exhaust holes 115A and 115B (collectively 115) and two intake / exhaust holes 116A and 116B (collectively refer to the front cover 110 covering the front side of the surface mounter body 10 in the X direction). 116). As shown in FIG. 2, the two intake / exhaust holes 115 </ b> A and 116 </ b> A are provided on the left surface of the front cover 110, and the two intake / exhaust holes 115 </ b> B and 116 </ b> B are provided on the right surface of the front cover 110. Each of these intake / exhaust holes 115A, 116A, 115B, 116B is composed of a large number of minute holes.

  The intake / exhaust holes 115A and 116A are at a height corresponding to the X beam 41A as shown in FIG. Specifically, the X beam 41A and the entire hole overlap in the height direction, and are positioned in front of the electromagnetic coil 95A. Further, as shown in FIG. 9, the position in the Y direction is determined corresponding to the movement range Ua of the X beam 41A. Specifically, the intake / exhaust hole 115A is provided at a position where the X beam 41A is mounted in the mounting work area (an area positioned during the mounting work) J in the Y direction (a position overlapping when viewed from the X direction). The intake / exhaust hole 116A is provided at a position where the part of the X beam 41A is taken out (a position where the X beam 41A stops when the part is taken out) Pu and a position where it overlaps in the Y direction (position where it overlaps when viewed from the X direction). In addition, in FIG. 9, the external shape of each X beam 41A-41D is shown with the broken-line frame.

  The same applies to the intake / exhaust holes 115B and 116B, and is at a height position corresponding to the X beam 41B. Specifically, the X beam 41B and the entire hole are overlapped in the vertical direction (Z direction), and is positioned in front of the electromagnetic coil 95A. Further, as shown in FIG. 9, the position in the Y direction is determined corresponding to the movement range Ub of the X beam 41B. Specifically, the intake / exhaust hole 115B is provided at a position where the X beam 41B is mounted in the mounting work area (area located during the mounting work) J in the Y direction (a position overlapping when viewed from the X direction). The intake / exhaust hole 116A is provided at a part extraction position of the X beam 41B (position where the X beam 41B stops when the part is extracted) Pu and a position overlapping in the Y direction (position overlapping when viewed from the X direction).

  Thus, the intake / exhaust hole 115A and the intake / exhaust hole 116A are provided corresponding to the movement range Ua of the X beam 41A in the Y direction, and the intake / exhaust hole 115B and the intake / exhaust hole 116B are corresponded to the movement range Ub of the X beam 41B in the Y direction. By providing, the inside of the warehouse (inside the cover 100) can be ventilated as the X beams 41A and 41B move in the Y direction.

  That is, when the X beam 41A moves from the component extraction position Pu toward the mounting work area J to the right in the Y direction, air is taken into the interior from the outside through the intake / exhaust hole 116A on the component extraction position Pu side, and the mounting work area J side In the intake / exhaust hole 115A, the air in the cabinet is exhausted to the outside (see the white arrow A shown in FIG. 9). Moreover, when the X beam 41A moves to the mounting work area J, the electromagnetic coil 95A, which is a heating element, is positioned in front of the intake / exhaust hole 115A. Therefore, as the X beam 41A moves, the surroundings of the electromagnetic coil 95A, which is a heating element, can be intensively ventilated.

  In addition, when the X beam 41B moves from the mounting work area J to the right side in the Y direction toward the component extraction position Pu, air is taken into the chamber from the outside through the intake / exhaust hole 115B on the mounting work area J side, and the component extraction position Pu side In the intake / exhaust hole 116B, the air in the cabinet is exhausted to the outside (see white arrow B shown in FIG. 9). Moreover, when the X beam 41B moves to the component extraction position Pu, the electromagnetic coil 95B, which is a heating element, is positioned in front of the intake / exhaust hole 116B. Therefore, along with the movement of the X beam 41B, the surroundings of the electromagnetic coil 95B, which is a heating element, can be intensively ventilated.

  As shown in FIG. 9, the rear cover 120 covering the rear side in the X direction of the surface mounter body 10 is also arranged in the same manner as the front cover 110, and has two intake / exhaust holes 125A, 125B and two intake / exhaust holes 116A, 116B. As the X beams 41C and 41D move in the Y direction, the interior (inside the cover 100) can be ventilated.

  Thus, in this embodiment, since the inside of a store | warehouse | chamber can be ventilated by the movement to the Y direction of X beam 41A-41D, the temperature in a store | warehouse | chamber can be lowered | hung. In addition, as the X beams 41A to 41D move, the surroundings of the electromagnetic coils 95A to 95D, which are heating elements, can be intensively ventilated. Therefore, the electromagnetic coils 95A to 95D, which are heating elements, can be efficiently cooled, so that it is possible to prevent the structural members such as the X beams 41A to 41D and the Y beams 21 to 23 from being thermally expanded. It is possible to maintain the component mounting accuracy.

<Embodiment 2>
Next, a second embodiment of the present invention will be described with reference to FIGS.
The second embodiment has a configuration in which intake fans 200A to 200D are added to the first embodiment in order to cool the electromagnetic coils 95A to 95D of the X beams 41A to 41D.

  More specifically, as shown in FIG. 10, the intake fans 200A to 200D are provided at positions corresponding to the component extraction positions Pu of the X beams 41A to 41D in the Y direction. Each of the intake fans 200A to 200D faces the X direction, which is the length direction of the X beam 41, and is sucked from the outside in the X direction (base center side) as indicated by a white arrow C in FIG. To send air.

  As shown in FIG. 11, each of the intake fans 200 </ b> A to 200 </ b> D is attached to the outer surface side of the holding plate 31 and at the same height as the electromagnetic coils 95 </ b> A to 95 </ b> D. The holding plate 31 is provided with through holes 32 corresponding to the attachment positions of the intake fans 200A and 200D. In FIG. 11, the attachment structure of the intake fan 200A is shown, but the other intake fans 200B to 200D have the same attachment structure.

  Therefore, when the X beams 41A to 41D move to the component extraction position Pu, as shown in FIG. 11, the electromagnetic coils 95A to 95D are positioned in front of the intake fans 200A to 200D, and the intake fans 200A to 200D The electromagnetic coils 95A to 95D can be cooled. That is, as shown by the white arrow C in FIGS. 10 and 11, the outside air sucked from the intake / exhaust holes 116 </ b> A, 116 </ b> B, 126 </ b> A, 126 </ b> B is driven through the through holes 32 of the holding plate 31 by driving the intake fans 200 </ b> A to 200 </ b> D. The electromagnetic coils 95A to 95D are blown through. Therefore, the electromagnetic coils 95A to 95D can be cooled.

  In the example of FIG. 10, since the two X beams of the X beam 41B and the X beam 41C are located at the component extraction position Pu, the electromagnetic coil 95B of the X beam 41B can be cooled by the intake fan 200B. The electromagnetic coil 95C of the X beam 41C can be cooled by the intake fan 200C.

  The front cover 110 and the rear cover 120 are provided with intake / exhaust holes 115, 116, 125, and 126 at exactly the same positions as in the first embodiment. Therefore, when the X beams 41A to 41D move in the Y direction between the component extraction position Pu and the mounting work area J, the inside of the warehouse is naturally ventilated by the action of the intake / exhaust holes 115, 116, 125, and 126. Therefore, the electromagnetic coils 95A to 95D can be cooled even during the movement of the X beams 41A to X41D.

  That is, in the configuration of the second embodiment, when the X beams 41A to 41D are stopped at the component extraction position Pu, the electromagnetic coils 95A to 95D are cooled by the intake fans 200A to 200D, and the X beams 41A to 41D are moved. Cools the electromagnetic coils 95A to 95D by internal ventilation. Therefore, the cooling performance is high, and the temperatures of the electromagnetic coils 95A to 95D can be effectively lowered.

  In this example, the intake fans 200A to 200D are provided corresponding to the component extraction positions Pu of the X beams 41A to 41D. The reason is that the component extraction positions Pu are frequently stopped at the X beams 41A to 41D. Because. That is, if the fans 200A to 200D are provided corresponding to the positions where the stop frequency is high, the frequency of cooling the electromagnetic coils 95A to 95D increases, so the cooling effect of the electromagnetic coils 95A to 95D is high, and the heated electromagnetic coil The temperature of 95A-95D can be lowered efficiently.

  Note that the intake direction of the air does not change unless the rotation direction of the intake fans 200A to 200D is reversed. Therefore, depending on the direction of the airflow at the time of internal ventilation, the suction directions of the intake fans 200A to 200D may be opposite to the airflow at the time of internal ventilation.

  For example, when the X-beams 41A to 41D move from the mounting work area J toward the component take-out position Pu, if the intake fans 200A to 200D are left driven, the intake air can be The intake directions of the fans 200A to 200D are reversed, and the intake fans 200A to 200D obstruct the internal ventilation. Therefore, when the intake direction of the intake fans 200A to 200D is opposite to the direction of the airflow during the internal ventilation, it is preferable to stop the intake fans 200A to 200D.

<Embodiment 3>
Next, Embodiment 3 of the present invention will be described with reference to FIG.
The third embodiment differs from the second embodiment in the attachment positions of the intake fans 200A to 200D and the direction in which air is sent.
More specifically, as shown in FIG. 12, the intake fans 200 </ b> A and 200 </ b> B are located on both sides of the Y beam 21 in the Y direction. Each of the intake fans 200A and 200B faces the Y direction, which is the length direction of the Y beam 21, and is sucked in from the outside in the Y direction (base center side) as indicated by a white arrow D in FIG. To send air.

  The position of the intake fan 200A in the X direction corresponds to the position of the electromagnetic coil 95A fixed to the X beam 41A, and the position of the intake fan 200B in the X direction corresponds to the position of the electromagnetic coil 95B fixed to the X beam 41B. It corresponds to.

  Next, the intake fans 200 </ b> C and 200 </ b> D are located on both sides of the Y beam 23 in the Y direction. Each of the intake fans 200C and 200D faces the Y direction, which is the length direction of the Y beam 23, and is sucked in from the outside in the Y direction (base center side) as indicated by a white arrow D in FIG. To send air.

  The position of the intake fan 200C in the X direction corresponds to the position of the electromagnetic coil 95C fixed to the X beam 41C, and the position of the intake fan 200D in the X direction corresponds to the position of the electromagnetic coil 95D fixed to the X beam 41D. It corresponds to.

  And if each X beam 41A-41D moves to the components extraction position Pu, the electromagnetic coils 95A-95D will be in the state which approached the intake fans 200A-200D. Therefore, the electromagnetic coils 95A to 95D can be cooled by driving the intake fans 200A to 200D and sending air in the Y direction.

  In the example of FIG. 12, since the two X beams of the X beam 41B and the X beam 41C are located at the component extraction position Pu, the electromagnetic coil 95B of the X beam 41B can be cooled by the intake fan 200B. The electromagnetic coil 95C of the X beam 41C can be cooled by the intake fan 200C.

  In the third embodiment, the moving direction (Y direction) of the X beams 41A to 41D and the direction (Y direction) in which the intake fans 200A to 200D send air coincide. For this reason, even if the X beams 41A to 41D move in the Y direction from the component extraction position Pu, the electromagnetic coils 95A to 95D are set while the X beams 41A to 41D are within the range where the air from the intake fans 200A to 200D reaches. Can be cooled. Therefore, the electromagnetic coils 95A to 95D can be further cooled as compared with the configuration of the second embodiment.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention.

  (1) In the first embodiment, a linear motor is exemplified as an example of the X motor 80 and the Y motor 90. The X motor 80 and the Y motor 90 are not necessarily linear motors as long as they can drive the mounting head and the X beam, and may be ordinary motors that rotate the rotating shaft in the circumferential direction.

  (2) In the first embodiment, the intake / exhaust hole 115A is provided in the front cover 110A at a position overlapping the mounting work area J of the X beam 41A in the Y direction, and the intake / exhaust hole 116A is provided in the X beam 41A of the front cover 110A. The example which provided in the position which overlaps with the parts extraction position Pu of Y in the Y direction was shown. The two intake / exhaust holes 115A and 116A need only be within the movement range of the X beam 41A (that is, the position overlapping the movement range Ua in the Y direction), and are not necessarily limited to the mounting work area J of the X beam 41A and the components of the X beam 41A. It does not have to overlap with the extraction position Pu.

  In addition, even when there is no positional relationship overlapping with the movement range Ua in the Y direction, such as when the X beam 41 is out of the movement range Ua, the two intake / exhaust holes 115A and 116A are in the vicinity of the end positions K1 and K2 of the movement range Ua. (The distance from the end positions K1 and K2 is within a predetermined value (for example, within 5 cm)), and is in a positional relationship corresponding to the movement range Ua, and the interior is ventilated by the movement of the X beam 41A. If possible, the intake / exhaust holes 115A and 116A can be arranged at such positions. The same applies to other intake and exhaust holes such as the intake and exhaust holes 115B and 116B.

  In the first embodiment, the entire intake / exhaust holes 115A and 116A overlap with the X beam 41A in the vertical direction (Z direction). However, an arrangement in which at least a portion overlaps may be used. The same applies to other intake and exhaust holes such as the intake and exhaust holes 115B and 116B.

  (3) In the first embodiment, the example in which the two intake / exhaust holes 115A and 116A are provided in the front cover 110A corresponding to the X beam 41A has been described. It is only necessary that at least two intake / exhaust holes are provided in the Y direction so as to correspond to one X beam 41, and the number of intake / exhaust holes may be two or more, such as four or six.

  (4) In the first embodiment, the intake / exhaust holes 115 and 116 are provided in the front cover 110 that covers the front side of the surface mounter body 10 in the X direction, and the intake and exhaust holes 125 and 126 are provided in the rear cover 120 that covers the rear side in the X direction. An example was given. The intake / exhaust holes 115 and 116 and the intake / exhaust holes 125 and 126 may be provided, for example, in the upper surface covers 150A to 150C as long as they are in positions corresponding to the movement ranges Ua to Ud of the X beams 41A to 41D.

  (5) In the second embodiment, the example in which the intake fans 200A to 200D are provided at positions corresponding to the component extraction positions Pu of the X beams 41A to 41D has been described. The positions of the intake fans 200A to 200D may be other positions as long as the stop frequencies are expected to be high in the movement ranges Ua to Ud of the X beams 41A to 41D. For example, if it is predicted that the stop frequency of the X beams 41A to 41D is high in the mounting work area J, the intake fans 200A to 200D are provided at positions corresponding to the X beam mounting work area J. May be. The “stop” here includes not only a state in which the X beams 41A to 41D are completely stopped, but also a state in which minute vibration that can be regarded as a stop is present.

  (6) The electromagnetic coils 95 </ b> A to 95 </ b> D may be cooled using the standby time of the mounting heads 70 </ b> A to 70 </ b> D (the time to wait for the start and restart of the mounting operation). That is, for example, the waiting time until the next printed circuit board is transported to the mounting work position after the printed circuit board is discharged from the mounting work position with the end of the mounting work is determined by the control unit (not shown) from the X beams 41A to 41B. The Y motor 90 is controlled so that 41D is stopped at a position corresponding to the intake fans 200A to 200D, the electromagnetic coils 95A to 95D are opposed to the intake fans 200A to 200D, and the electromagnetic coils 95A to 95D are cooled. Also good. In addition, the electromagnetic coils 95 </ b> A to 95 </ b> D may be cooled using a waiting time that occurs when the mounting operation is temporarily suspended due to a sudden error or the like.

  (7) In the first embodiment, an example in which the front cover 110A is provided with the two intake / exhaust holes 115A and 116A corresponding to the X beam 41A has been described. That is, an example in which the intake / exhaust hole 115A is provided at a position overlapping the mounting work area J of the X beam 41A when viewed from the X direction, and the intake / exhaust hole 116A is provided at a position overlapping the component extraction position Pu of the X beam 41A from the X direction. Indicated. Of the two intake / exhaust holes 115A, 116A, the intake / exhaust hole 115A on the mounting work area J side is abolished, and only the intake / exhaust hole 116A provided at a position overlapping the component extraction position Pu of the X beam 41A as viewed from the X direction. Also good.

  As described above, even when the intake / exhaust hole 116A is provided only at the position where the front cover 110A overlaps with the component extraction position Pu of the X beam 41A when viewed from the X direction, the X beam 41A The interior can be ventilated using the movement in the Y direction. That is, when the X beam 41A moves away from the component extraction position Pu in the Y direction, air is sucked in from the outside through the intake / exhaust holes 116A, and oppositely, the X beam 41A moves in the Y direction and moves away from the component extraction position Pu. When approaching Pu, the air in the warehouse can be exhausted through the intake hole 41A. Further, when the X beam 41A is stopped at the component extraction position Pu, the X beam 41A can be cooled by the outside air.

  The intake / exhaust hole 116A only needs to be at a position corresponding to the component extraction position Pu. In addition to the position overlapping the component extraction position Pu when viewed from the X direction, the distance from the component extraction position Pu is a predetermined value (for example, It may be arranged in the vicinity of the component extraction position Pu, such as 5 cm or less. Further, the upper surface cover 150A may be provided as long as the position corresponds to the component extraction position Pu. The same applies to other intake and exhaust holes such as the intake and exhaust holes 115B and 116B.

10 ... Surface mount machine body 11 ... Base 21, 22, 23 ... Y beam (first beam)
41A-41D ... X beam (second beam)
70A ~ 70D ... Mounting head 80 ... X motor 81 ... Magnet (stator)
85 ... Electromagnetic coil (mover)
90 ... Y motor 91, 92 ... Magnet (stator)
95 ... Electromagnetic coil (mover)
100 ... cover 110 ... front cover 120 ... rear cover Ua to Ud ... moving range

Claims (7)

A surface mounter for mounting electronic components on a printed circuit board,
The surface mounter body,
A cover that covers the surface mounter body,
The surface mounter body is
The first beam;
A second beam supported movably in a first direction with respect to the first beam;
A mounting head supported against the second beam,
The cover is
Having at least two intake / exhaust holes at a position corresponding to the moving range of the second beam;
The two air intake / exhaust holes are located away from each other in the first direction, and ventilate the air in the cover as the second beam moves in the first direction. The surface mounter according to claim 1,
The second beam reciprocates in the first direction between a component extraction position where the mounting head picks up an electronic component from a feeder and a mounting work area where the mounting head mounts the electronic component on a printed circuit board,
One of the two intake / exhaust holes is a surface mounter in which one intake / exhaust hole is at a position corresponding to the component extraction position and the other intake / exhaust hole is at a position corresponding to the mounting work area. The surface mounter according to claim 1 or 2,
The surface mounter body includes a linear motor that moves the second beam in the first direction with respect to the first beam,
The linear motor is
A stator provided on the first beam and made of a magnet;
A surface mounter including a mover provided on the second beam and made of an electromagnetic coil. The surface mounter according to claim 3,
A surface mounter having a fan for cooling the electromagnetic coil of the second beam corresponding to a position where the stop frequency is high in the moving range of the second beam. The surface mounting machine according to claim 4,
The position where the stop frequency is high is a component take-out position where the mounting head takes out an electronic component from a feeder in the moving range of the second beam,
A surface mounter having the fan for cooling the electromagnetic coil of the second beam corresponding to the component extraction position. The surface mounter according to claim 3,
A surface mounter having a fan for cooling the electromagnetic coil of the second beam from the first direction which is a moving direction of the second beam. A surface mounter for mounting electronic components on a printed circuit board,
The surface mounter body,
A cover that covers the surface mounter body,
The surface mounter body is
The first beam;
A second beam supported movably in a first direction with respect to the first beam;
A mounting head supported against the second beam,
The cover is
The mounting head has intake / exhaust holes at a position corresponding to a component extraction position for taking out an electronic component from the feeder,
The air intake / exhaust hole is a surface mounter that ventilates the air in the cover as the second beam moves in the first direction.

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