JP2008108800A - Substrate conveyance apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a substrate conveyance apparatus that can uniformly press even a printed substrate with a small length in the conveyance direction to the engaging part of a conveyance chute from the lower side. <P>SOLUTION: When a substrate conveyance chute stops lowering, an air cylinder 15 corresponding to the size of a printed substrate P is activated to take in a rod. A pressing member is decided according to a guide member 16 against the energizing force of a coil spring. For a printed substrate P with small length in the conveyance direction, only a pressing member 10A is used, and when the length is ordinary, the pressing members 10A and 10B are used, and when the length is large, the pressing members 10A, 10B and 10C are raised to press down the printed substrate P to the engagement part of the substrate conveyance chute from the lower side, so as to position the printed substrate P in the vertical direction. In this case, in the pressing member 10A corresponding to the printed substrate P with small length, each of cylinders 15 is located outside the respective guide members 16 at the end of the positioning reference side. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a substrate transport device that presses and positions the printed circuit board from below to a locking portion formed on the transport chute at a position where the printed circuit board is transported along a pair of transport chutes and stopped.

This type of substrate transfer apparatus is known from, for example, Japanese Patent Application Laid-Open No. H10-228707. When the length of the printed circuit board in the transport direction becomes longer, it is difficult for the pressing member to press the printed circuit board evenly on the engaging portion from below, so a plurality of the pressing members are provided along the transport chute. It is possible.

JP 2004-31469 A

  However, a plurality of pressing members provided along the conveying chute to press the printed circuit board from below to a locking portion formed on the conveying chute, and a plurality of driving sources provided for each pressing member, A plurality of guide members that are provided for each pressing member and guide the ascent of each pressing member that is operated by each driving source, and serve as a positioning reference when positioning on the upstream side or downstream side of the transport, but the length in the transport direction It is desired that even a small printed circuit board is pressed evenly from below onto the locking portion.

SUMMARY OF THE INVENTION An object of the present invention is to provide a substrate transfer apparatus that can evenly press a printed chute having a small length in the transfer direction from the lower side to the engaging portion of the transfer chute.

  For this reason, the first invention is a substrate transport device that presses and positions the printed circuit board from below on a locking portion formed on the transport chute at a position where the printed circuit board is transported and stopped along a pair of transport chutes. A plurality of pressing members provided along the conveying chute for pressing the printed circuit board from below to a locking portion formed on the conveying chute, and a plurality of driving sources provided for each of the pressing members, And a plurality of guide members that are provided for each pressing member and guide the raising and lowering of each pressing member that is operated by each driving source, and are positioned on the positioning reference side when the printed board is stopped and positioned. In the pressing member, the drive sources are positioned outward from the guide members at the positioning reference side end.

According to a second aspect of the present invention, there is provided a board transfer device for positioning the printed circuit board by pressing the printed circuit board from below to a locking portion formed on the transfer chute at a position where the printed circuit board is transported along a pair of transport chutes and stopped. A plurality of pressing members provided along the conveying chute to press the printed circuit board from below to the engaging portion formed on the conveying chute, and a plurality of driving sources provided for each of the pressing members, And a plurality of guide members that are provided for each pressing member and guide the raising and lowering of each pressing member that is operated by each driving source, at the positioning reference side end when the printed board is stopped and positioned. In the pressing member, the drive source positioned inward at the positioning reference side end is positioned outward from the guide member positioned inward. To.

The present invention can provide a substrate transfer device that can evenly press a locking chute engaging portion from below even on a printed circuit board having a small length in the transfer direction.

  Embodiments according to the substrate transfer apparatus of the present invention will be described below with reference to the drawings. 1 to 6, reference numerals 1 and 2 denote a pair of substrate transfer shunts supported by a shout support (not shown), which are provided at the left and right ends of the substrate transfer chutes 1 and 2, respectively. A conveyor belt 6 is stretched around the sprockets 3 and 4 and the plurality of rollers 5. Each conveyor belt 6 is conveyed from left to right in FIG. 1 while rotating the sprockets 3 and 4 by a driving source such as a driving motor and placing both front and rear ends of the printed circuit board P.

An XY table (not shown) that can be moved in the XY direction by an X-axis drive motor and a Y-axis drive motor in a horizontal plane is disposed below the printed board P, and the printed board of this XY table. A plurality of holes are opened on the surface facing P, and backup pins that are in contact with the back surface of the board P and horizontally support the board P are inserted into appropriate positions of the holes according to the size of the printed board P. Is done.

As disclosed in Japanese Utility Model Laid-Open No. 6-52197 filed by the present applicant, a shoe having a roller attached to the tip of a bearing fixed to the XY table (not shown). A lifting / lowering lever is pivotally attached, and the roller of the lifting / lowering lever is moved up and down by a cylinder so as to be supported by the substrate transporting shunts 1 and 2 together with the shout support. The printed circuit board P is moved up and down, and the shout support is moved up and down while being guided by each guide shaft passing through the XY table.

10A, 10B, and 10C are pressing members in which the cross section has an L shape and the reinforcing body 12 is fixed to the bottom surface 10D, and the printed circuit board P is inserted into the locking portion 11 formed on the substrate transport chutes 1 and 2 from below. In order to press, it is provided along the substrate transport chutes 1 and 2.

Reference numeral 15 denotes an air cylinder fixed to the substrate transport shunts 1 and 2, which is a drive source provided in pairs corresponding to the pressing members 10 </ b> A, 10 </ b> B, and 10 </ b> C. The lower end of the rod 15A of the air cylinder 15 passes through the bottom surface 10D and the reinforcing body 12 of the pressing members 10A, 10B, and 10C, and the bottom surface 10D and the reinforcing body 12 are connected to the retaining piece 15B at the lower end. It is pinched.

Similarly, 16 is a guide member provided in each of the substrate transport shunts 1 and 2 corresponding to the pressing members 10A, 10B, and 10C, and the rising and lowering of the pressing members 10A, 10B, and 10C operated by the air cylinders 15 Guide the descent. That is, the guide member 16 includes a cylindrical body 17 attached to the conveyance chutes 1 and 2 and a shaft 18 that passes through the cylindrical body 17 and is fixed to the cylindrical body 17, and the shaft 18 is formed by the pressing members 10A and 10B. Through the bottom surface 10D of 10C and the openings 10E and 12E provided in the reinforcing body 12, the pressure members 10A, 10B, and 10C are guided to rise and fall through the openings 10E and 12E.

A coil spring 20 as an urging member is disposed between the bottom surface 10D of the pressing members 10A, 10B, and 10C and the lower portions of the substrate transport shunts 1 and 2, and the pressing members 10A, 10B, and 10C are The pressing members 10 </ b> A, 10 </ b> B, and 10 </ b> C are urged downward so as to move away from the lower portions of the substrate transport shunts 1 and 2. However, although the pressing members 10A, 10B, and 10C are urged downward by the coil spring 20 in this way, the pressing members 10A, 10B, and 10C are lowered by the retaining piece 15B at the lower end of the rod 15A of the air cylinder 15. Limited.

  Further, in the pressing member 10B, the air cylinders 15 are positioned outside the respective guide members 16, that is, the both guide members 16 are positioned so that the both air cylinders 15 are sandwiched therebetween. . However, the positioning reference when the printed circuit board P is stopped and positioned in the substrate transporting shunts 1 and 2 is the left part or the right part of the substrate transporting shunts 1 and 2. The pressing member 10A at the positioning reference side end when the printed circuit board P is conveyed and stopped and positioned so that the vertical positioning can be performed evenly and reliably even with the printed circuit board P having a short length in the direction. 10C, the air cylinder 15 located inward of the two at the positioning reference side end is located outward from the guide member 16 also located inward.

  That is, in the pressing member 10B, the air cylinders 15 are positioned outward from the guide members 16, and the guide members 16, 16 are placed between the left and right air cylinders 15, 15 in FIG. However, in the pressing member 10A at one positioning reference side end, the air cylinder 15, the guide member 16, the air cylinder 15, and the guide member 16 are arranged in this order from the left outer side, and the other side In the pressing member 10C at the positioning reference side end, the air cylinder 15, the guide member 16, the air cylinder 15, and the guide member 16 are arranged in this order from the right outer side.

By configuring in this way, when the positioning reference when the printed board P is stopped and positioned is the left part or the right part of the board transport shunts 1 and 2, the length in the transport direction is set. Even in a short printed circuit board P, positioning in the vertical direction can be reliably and evenly performed by the pressing member 10A or 10C by the action of the two air cylinders 15.

With the above configuration, the operation will be described below. First, the print base P is inherited from an upstream device (not shown), and is transported to the left portion as a positioning reference by the substrate transport shunts 1 and 2 and stopped.

Thereafter, the rod of the cylinder (not shown) is lowered, and the shunt raising / lowering lever is rotated downward along with this, and the printed circuit board P supported by the conveying shunts 1 and 2 by the guide shaft. Moves down together with the substrate transport chutes 1 and 2 and the shout support.

By this lowering, the backup pin is inserted into the hole opened in the XY table. When the substrate transporting shunts 1 and 2 are lowered, the backup pin comes into contact with the back surface of the printed substrate P, and the substrate P Is supported by pushing it up horizontally. Further, the warp is pushed up by the backup pins even on the substrate P having a warp downstream, and the substrate P is supported horizontally.

When the transport chutes 1 and 2 are lowered, one positioning pin is swung by a driving source (not shown) so that the positioning pin presses the printed board P against the other positioning pin. The left and right end portions in FIG. 1 are fixed so as to sandwich the printed board P in the left-right direction (conveyance direction).

Further, when the conveyance chutes 1 and 2 have finished descending, the corresponding air cylinder 15 is operated according to the size of the printed circuit board P to retract the rod 15A, and the guide member 16 resists the biasing force of the coil spring 20. If the length of the pressing member corresponding to the guiding member, that is, the printed board P in the transport direction is short, only the pressing member 10A is used. If the length is normal, the pressing members 10A and 10B are used. If the length is longer, the pressing members 10A, 10B, and 10C are raised to cause the locking portions 11 formed on the substrate transport chutes 1 and 2 to press the printed board P from below to position the printed board P in the vertical direction. (See FIGS. 5 and 6).

In this case, in the pressing member 10A at the positioning reference side end when the printed circuit board P having a short length in the transport direction is stopped and positioned, each air cylinder 15 is connected to each guide member 16 at the positioning reference side end. Since it is configured to be positioned more outward, even in the printed board P having a short length in the transport direction, the vertical positioning is reliably performed more uniformly by the pressing member 10A by the action of the two air cylinders 15 corresponding to the pressing member 10A. It can be done reliably.

The operation of mounting the electronic component on the printed circuit board P thus positioned is started. That is, the component suction nozzle that sucks the electronic component from the component supply device is lowered onto the printed circuit board P, and the electronic component is mounted at a predetermined position.

In the above-described embodiment, an XY table that can be moved to an arbitrary position in the XY direction in the horizontal plane is used and the suction nozzle that moves up and down at a predetermined position is used. However, the suction nozzle can be moved up and down. When a suction nozzle that can move in the XY direction in the horizontal plane is used, a table that does not move in the horizontal direction may be used instead of the XY table.

Furthermore, in the present embodiment, the present invention is applied to an electronic component automatic mounting apparatus, but various modifications can be made without departing from the gist of the present invention. For example, a coating apparatus that applies a coating agent such as an adhesive to a substrate ( The present invention can also be applied to a so-called dispenser device.

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 embodiments described above without departing from the spirit of the present invention. It encompasses alternatives, modifications or variations.

It is a top view of a board | substrate conveyance apparatus. It is a front view of one conveyance chute. It is a vertical right view of the air cylinder part of the board | substrate conveyance apparatus before positioning of a printed circuit board. It is a vertical right view of the guide member part of the board | substrate conveyance apparatus before positioning of a printed circuit board. It is a vertical right side view of the air cylinder part of the board | substrate conveyance apparatus at the time of positioning of a printed circuit board. It is a vertical right view of the guide member part of the board | substrate conveying apparatus at the time of positioning of a printed circuit board.

Explanation of symbols

1, 2 Substrate transport chute 10A, B, C Press member 11 Locking portion 15 Air cylinder 16 Guide member 20 Coil spring

P Printed circuit board

Claims (2)

A substrate transfer device that positions the printed circuit board by pressing the printed circuit board from below to a locking portion formed on the transfer chute at a position where the printed circuit board is conveyed and stopped along a pair of conveyance chutes, and is formed on the conveyance chute A plurality of pressing members provided along the conveying chute for pressing the printed circuit board from below to the engaging portion, a plurality of driving sources provided for each pressing member, and also provided for each pressing member. A plurality of guide members for guiding the raising and lowering of each pressing member operated by each driving source, and the pressing member at the positioning reference side end when the printed circuit board is stopped and positioned. The substrate transfer apparatus, wherein the drive sources are positioned outward from the guide members at the positioning reference side end.

A substrate transfer device that positions the printed circuit board by pressing the printed circuit board from below to a locking portion formed on the transfer chute at a position where the printed circuit board is conveyed and stopped along a pair of conveyance chutes, and is formed on the conveyance chute A plurality of pressing members provided along the conveying chute for pressing the printed circuit board from below to the engaging portion, a plurality of driving sources provided for each pressing member, and also provided for each pressing member. A plurality of guide members for guiding the raising and lowering of each pressing member operated by each driving source, and the pressing member at the positioning reference side end when the printed circuit board is stopped and positioned. The substrate transport apparatus, wherein the drive source positioned inward at the positioning reference side end is positioned outward from the guide member positioned inward. .

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