JP2013055220A - Electronic component mounting apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable component supply wagons to be exchanged during the operation of a facility while ensuring the safety of workers with an inexpensive system in an electronic component mounting apparatus which can attach/detach the component supply wagons thereto/therefrom.SOLUTION: An apparatus body 1a has an opening 29, which allows a gantry moving space 26a in a cover 27 to communicate with a wagon housing space 25a, and the opening 29 may be closed by a gantry 26 located at a component take-out position where components are taken out from a component supply wagon 31. In the apparatus body 1a, a first sensor 36 for detecting that the gantry 26 closes the opening 29, and second sensors 37, 38, 39 for detecting that the component supply wagon 31 is housed in the wagon housing space 25a, are provided.

Description

  The present invention relates to an electronic component mounting apparatus that enables a component supply carriage to be replaced even during facility operation.

  2. Description of the Related Art Conventionally, in an electronic component mounting apparatus, a component supply carriage equipped with a large number of tape feeders can be attached to and detached from the apparatus main body to facilitate replenishment and switching of mounted electronic components (for example, Patent Documents). 1).

JP 2010-267651 A

By the way, the attachment / detachment of the parts supply carriage is usually performed after the operation of the equipment including the apparatus is temporarily stopped. This is because the opening of the pickup part of the electronic parts in the carriage housing part (opening with the carriage removed) may be large for exchanging the carriage while the equipment is in operation, even if expensive equipment such as an area sensor is assumed. This is because the safety for the worker cannot be ensured unless the facility is temporarily stopped.
However, exchanging the cart while the equipment is in operation improves the productivity of the semiconductor equipment (mounting machine), and in order to reduce losses when switching models at production factories such as mobile phones and PCs, It is considered indispensable to solve the problem of enabling cart replacement.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an electronic component mounting apparatus in which a component supply carriage can be attached and detached, and to enable replacement of the component supply carriage during operation of the facility with an inexpensive system while ensuring the safety of the operator. .

As a means for solving the above-mentioned problems, the invention described in claim 1 includes an apparatus main body for mounting electronic components, a component supply carriage that can be attached to and detached from a carriage housing space provided at a lower portion of the apparatus main body, and the apparatus. An electronic component mounting apparatus comprising: a gantry that is movably provided in a cover that covers an upper portion of the main body and takes out an electronic component from the component supply carriage accommodated in the carriage accommodating space. An opening that communicates the gantry movement space and the carriage housing space is provided, and the opening can be closed by the gantry at a part removal position from the parts supply carriage.
According to a second aspect of the present invention, in the apparatus main body, a first sensor that detects that the gantry blocks the opening, and a first sensor that detects that the component supply carriage is accommodated in the carriage accommodation space. Two sensors are provided.
According to a third aspect of the present invention, the second sensor detects a front-side sensor that detects the component supply cart on the entrance side of the cart housing space, and detects the component supply cart on the back side of the cart housing space. A rear sensor and a safety sensor for detecting an object in the cart housing space, and when the front sensor detects the component feeding cart, the component feeding cart blocks the entrance of the cart housing space. In this state, when the detection of the safety sensor becomes invalid and then the back side sensor detects the component supply carriage, the component supply carriage reaches the docking preparation position, and from this state, the mounting operation is performed after a predetermined docking operation. It is characterized by restarting.

  According to the present invention, even when the equipment is in operation, electronic parts can be replenished and switched safely only by exchanging the carriage without greatly opening the gantry movement space by opening the cover, etc. Equipment productivity can be improved. In addition, the opening can be closed by moving the gantry to the parts picking position, and the operation of the gantry in the detaching state of the trolley can be restricted with the detachment of the trolley as a trigger. In this way, replacement of the parts supply cart during operation of the equipment can be realized with an inexpensive system while ensuring the safety of the operator.

It is a perspective view of the electronic component mounting apparatus in embodiment of this invention. It is a side view of the principal part of the said electronic component mounting apparatus. It is a side view at the time of the components supply cart detachment | leave in FIG. It is a top view which shows the first half of the mounting procedure of the component supply trolley | bogie of the said electronic component mounting apparatus in order of (a)-(c). It is a top view which shows the second half of the mounting procedure of the component supply cart of the said electronic component mounting apparatus in order of (a)-(c).

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the apparatus main body 1 a of the electronic component mounting apparatus 1 includes Y tables 3 that extend in the depth direction (Y direction) on both sides in the width direction (X direction) of the base 2. Each Y table 3 is provided with a ball screw 6 that is rotated by a servo motor 5 on a table base 4 provided on the Y table 3.

  In each Y table 3, the servo motor 5 of the Y table 3 on the left side of FIG. 1 is provided on the front side, and the servo motor 5 of the Y table 3 on the right side of FIG. Both side portions of the X table 7 extending in the X direction are screwed to the ball screws 6 of each Y table 3.

  The table body 8 of the X table 7 is screwed into the ball screw 6 of each Y table 3 and moves along the Y direction by the rotation of the ball screw 6 of each Y table 3. The X table 7 is provided with a ball screw 10 driven by a servo motor 9 provided on the right side of FIG. A joint block 11 is screwed onto the ball screw 10, and a nozzle head 20 having eight nozzles 18 that adsorb electronic components by negative pressure and release them by positive pressure is supported on the joint block 11. ing.

  Each Y table 3 is formed with an opening 13 along the Y direction, and a substrate transport device 14 extending in the X direction on the front side (front side) of the base 2 so as to span the opening 13. Is provided. The board transport device 14 includes a pair of rails 15, and a board 16 on which electronic components are mounted is transported along the X direction on each of the rails 15.

  On the front side of the upper part of the base 2, in order from the left side of FIG. 1, the electronic component disposal box 17, the nozzle station 19 that accommodates the plurality of nozzles 18, and the nozzle head 20 are photographed from below. A camera 21 is disposed.

  On the right side of the camera 21 in FIG. 1, a plurality of tape feeders 22 (only one pair is shown in FIG. 1) for supplying electronic components to be mounted on the substrate 16 to the apparatus main body 1a are provided. Each of the tape feeders 22 is arranged along the X direction, and an electronic component (none of which is not shown) on the carrier tape fed out from a tape reel held by the tape feeder 22 is arranged at a component suction position by the nozzle head 20.

  This electronic component is adsorbed by each nozzle 18 of the nozzle head 20 and is transported and mounted at a mounting position on the substrate 16 on the substrate transport device 14. The nozzle head 20 is driven to rotate about a vertical axis by the operation of a driving device (not shown), and the nozzle 18 positioned above the component suction position is moved up and down by the operation of the driving device (not shown). For example, a controller 24 that controls the operation of the entire electronic component mounting apparatus 1 including the tables 3 and 7 and the nozzle head 20 is disposed on the left side of FIG.

  Referring to FIGS. 2 and 3 together, for example, on the right side of FIG. 1 below the front portion of the base 2 in the apparatus main body 1a, a carriage that detachably accommodates a later-described component supply carriage 31 having a plurality of tape feeders 22 mounted thereon. The accommodating part 25 is recessed. The parts supply cart 31 includes a caster 33 having a caster 33 at the lower end and a handle 34 for moving operation on both sides of the rear upper portion, a feeder mounting table 35 provided on the upper portion of the cart main body 32, and a feeder mounting table 35. And a plurality of held tape feeders 22. Note that the illustration of the tape feeder 22 is omitted in the illustration convenience, FIGS.

The parts supply cart 31 travels on the floor surface and is attached to and detached from the cart housing portion 25 of the apparatus main body 1a that is also installed on the floor surface. Hereinafter, the space formed by the cart housing portion 25 is referred to as a cart housing space 25a.
The parts supply carriage 31 and the apparatus main body 1a have positioning guides 1b (see FIGS. 4 and 5) that define the relative positions of the parts, and the parts supply carriage 31 approaches and accommodates the carriage accommodating portion 25 from the rear in the Y direction. Thus, the parts supply carriage 31 and the apparatus main body 1a are in a predetermined assembled state. By replacing the component supply carriage 31 with respect to the apparatus main body 1a and replacing it, the electronic components can be easily replenished and switched.

  2 and 3, in the apparatus main body 1a, the gantry 26 mainly including the X table 7 and the nozzle head 20 operates in the gantry moving space 26a in the cover 27 covering the upper part of the apparatus main body 1a. The gantry moving space 26 a corresponds to a space in which the nozzle head 20 is moved by the tables 3 and 7, and the outer periphery of the front, rear, left and right and the upper part thereof are covered by the cover 27.

  The cover 27 is configured as a separate lid 28 with respect to the cover main body 27 a whose rear portion is fixed to the base 2. The lid 28 has an L shape having an upper wall 28a and a rear wall 28b, and a front end of the upper wall 28a is supported by the cover body 27a through a hinge shaft along the X direction so as to be opened and closed.

  Thereby, when the gantry 26 is maintained, the lid 28 is opened after the operation of the equipment including the electronic component mounting apparatus 1 is stopped, and the gantry moving space 26a can be accessed from the back of the cover 27. The lid 28 can be closed to ensure safety with respect to the surroundings.

  The lid 28 is located above the carriage housing portion 25, and the component supply carriage 31 is accommodated below the lid 28. From the lower end (opening / closing end) of the rear wall 28b of the cover 27, the lower wall 28c extends obliquely downward and forward. An upper front end of the base 2 of the apparatus main body 1a is disposed on the extension of the lower wall 28c. An opening 29 is formed between the upper front end of the base 2 and the front end of the front wall so as to communicate the gantry moving space 26a and the cart housing space 25a.

  The opening 29 opens toward the carriage housing space 25a (downward), and corresponds to an opening for picking up an electronic component from the parts supply carriage 31 in the apparatus main body 1a. The opening 29 is closed by, for example, a gantry 26 located at a component picking position (the most retracted position) where the electronic component can be sucked from the component picking position, and is also closed by the component supply carriage 31 in the assembled state.

Hereinafter, attachment / detachment of the component supply cart 31 will be described.
First, during operation of equipment including the electronic component mounting apparatus 1, when a cart replacement button (not shown) is pressed at a predetermined cart replacement timing, the controller 24 moves the gantry 26 to, for example, the component extraction position (FIG. 3). reference). At this time, the gantry 26 moves along the shortest path from the position where the nozzle head 20 mounts the final component on the substrate 16. At this time, the controller 24 activates a notification means (not shown) to inform the surroundings that the cart is being replaced.

  Since the gantry 26 is in the part removal position, the opening 29 is closed by the gantry. The apparatus main body 1a is provided with a gantry movement sensor 36 that detects that the gantry 26 has moved to the component removal position (opening closed position). At this time, the opening 29 facing the carriage housing portion 25 is closed by the gantry 26 with a gap of an extent that does not allow an operator's hand (8 mm or less, equivalent to European standards), for example. Thereby, ensuring of the clearance for operation | movement of the gantry 26 and ensuring of the safety | security with respect to an operator are compatible.

  Next, after the current parts supply carriage 31 is removed from the carriage housing part 25, a new parts supply carriage 31 is moved closer to the carriage housing part 25 from the rear in the Y direction (see FIG. 4A), for example, FIG. A front side sensor 37 provided at the rear of the right positioning guide 1b detects the front end of the component supply carriage 31 (see FIG. 4B).

Further, for example, a safety sensor 39 that detects the presence of an operator or the like in the carriage housing unit 25 is provided at the front and rear intermediate portion of the positioning guide 1b on the right side of FIG. Further, for example, at the front of the positioning guide 1 b on the left side of FIG. 4, a back sensor 38 that detects the front end of the component supply carriage 31 is provided.
The sensors 36 to 39 are, for example, beam sensors (photoelectric sensors), and detection signals from the sensors 36 to 39 are input to the controller 24.

  When the safety sensor 39 detects the presence of an operator or the like in the carriage housing unit 25, the controller 24 activates a warning means (not shown) to issue a warning to the surroundings. After the front side sensor 37 detects the component supply carriage 31, even if the safety sensor 39 detects the component supply carriage 31 that has further entered the carriage housing 25, the detection signal is ignored by the controller 24. No warning is given (see FIG. 4 (c)). This is because when the front sensor 37 detects the front end portion of the component supply cart 31, the entrance to the cart housing portion 25 is blocked.

  Next, when the component supply cart 31 further enters the cart housing 25, the back sensor 38 detects the front end of the component supply cart 31, and the controller 24 causes the component supply cart 31 to be docked in a predetermined manner by display means (not shown). Let the surroundings know that the preparation position has been reached (see FIG. 5A). Thereafter, when a docking button (not shown) is pressed, the controller 24 operates, for example, the cylinders 1c provided outside the positioning guides 1b in the X direction, and accommodates the parts supply cart 31 by utilizing the negative pressure. Pushing into the docking position at the back of the portion 25 starts (see FIG. 5B). In the figure, reference numeral 1d denotes a solenoid that operates each cylinder 1c, and reference numeral 1e denotes a cylinder sensor that detects the operation of the cylinder 1c.

When the unillustrated docking sensor provided in the gantry 26 detects that the parts supply cart 31 has reached the docking position (see FIG. 5C), the controller 24 stops the operation of the notification means and the electronic The mounting operation of the electronic component by the component mounting apparatus 1 is resumed. Thus, the attachment / detachment and replacement work of the component supply cart 31 is completed.
Thus, each sensor 36-39 which detects whether the component supply trolley | bogie 31 exists in the said assembly | attachment state is provided in the apparatus main body 1a.

  According to the above-described embodiment, even when the equipment including the electronic component mounting apparatus 1 is in operation, the electronic device can be obtained by simply replacing the component supply carriage 31 without opening the gantry moving space 26a by opening the cover 27 or the like. The replenishment and switching of components can be performed safely, and the productivity of the electronic component mounting apparatus 1 can be improved. In addition, the opening 29 can be closed by moving the gantry 26 to the parts picking position, and the operation of the gantry 26 in the detaching state of the carriage can be limited by using the detachment of the parts supply carriage 31 as a trigger. In this way, replacement of the parts supply cart 31 during operation of the equipment can be realized with an inexpensive system while ensuring the safety of the operator.

  ADVANTAGE OF THE INVENTION According to this invention, replacement | exchange of the parts supply trolley | bogie in operation | use of an installation is realizable with an inexpensive system, ensuring a worker's safety.

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 1a Apparatus main body 25a Carriage accommodation space 26 Gantry 26a Gantry movement space 27 Cover 29 Opening 31 Component supply carriage 36 Gantry movement sensor (first sensor)
37 Front sensor (second sensor)
38 Back sensor (second sensor)
39 Safety sensor (second sensor)

Claims (3)

An apparatus body for mounting electronic components;
A parts supply carriage that can be attached to and detached from a carriage housing space provided at a lower portion of the apparatus body;
In an electronic component mounting apparatus comprising: a gantry that is movably provided in a cover that covers an upper portion of the apparatus main body and takes out an electronic component from the component supply carriage accommodated in the carriage accommodation space.
The apparatus main body has an opening that communicates the gantry moving space in the cover and the carriage housing space, and the opening can be closed by the gantry at a part removal position from the parts supply carriage. An electronic component mounting apparatus.   The apparatus main body is provided with a first sensor for detecting that the gantry blocks the opening, and a second sensor for detecting that the component supply carriage is accommodated in the carriage accommodation space. The electronic component mounting apparatus according to claim 1. The second sensor includes a front-side sensor that detects the parts supply carriage on the entrance side of the carriage accommodation space, a back sensor that detects the parts supply carriage on the back side of the carriage accommodation space, and the carriage accommodation space. A safety sensor for detecting an object inside,
When the front side sensor detects the parts supply carriage, the parts supply carriage closes the entrance of the carriage accommodation space, and in this state, the detection of the safety sensor becomes invalid, and then the back side sensor supplies the parts supply 3. The electronic component mounting apparatus according to claim 2, wherein when a cart is detected, the component supply cart reaches a docking preparation position, and the mounting operation is resumed after a predetermined docking operation from this state.

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