JP2002353698A - Electronic component mounter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic component mounter that can efficiently plug a clearance on a feeder base and ensure the safety of operators at a low cost. SOLUTION: This electronic component mounter is used to pick up an electronic component from a tape feeder 6 arranged on a component supply 5A by a transfer head 10 and feed/mount it onto a board 4. A cover member 23 is provided farther outside under the center of the device than an X axis table 9A located above the component supply part 5A, and farther inside above the center thereof than the recovery reel 6b (projected part) of the tape feeder 6. A cover member 23 is rotatable at the center of the hinge pin 22a provided on the central side of the device, thus plugging a clearance on the feeder base 21 without failing operability during attaching/detaching of the tape feeder 6 so as to ensure the safety of operators.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic component mounting apparatus for mounting electronic components on a substrate.

[0002]

2. Description of the Related Art In an electronic component mounting apparatus, a method using a tape feeder is known as a method for supplying an electronic component to a transfer head. In this method, a large number of tape feeders are arranged on a feeder base to form a component supply unit,
This component supply unit is arranged on the side of the mounting stage of the electronic component mounting apparatus. Then, the electronic component is picked up by the transfer head from the component supply unit, and the mounting operation of the electronic component is performed by reciprocating the transfer head between the component supply unit and the substrate of the mounting stage.

[0003] By the way, when the electronic component mounting apparatus is in operation,
The maximum number of tape feeders that can be arranged in the feeder base is not always mounted, and the apparatus may operate with the tape feeder partially unmounted on the feeder base. In this case, it is possible for the worker to insert his / her hand into the movable range of the transfer head from the gap generated in the unmounted portion, and if such a situation occurs for any reason, the safety of the worker is reduced. In electronic component mounting equipment, the unsafe condition caused by such a gap on the feeder base can be eliminated.
Various safety measures have been taken to prevent unsafe acts.

Conventionally, as such a safety measure, an area sensor is provided to detect a feeder base range, and if the entry of a body part such as an operator's hand is detected, the operation of the transfer head is stopped. The safety of workers was ensured by stopping.

[0005]

However, the safety measures using the area sensor as described above have the following disadvantages. First, the area sensor is expensive in price and has a disadvantage in terms of cost, which leads to an increase in the cost of the apparatus. In addition, since the area sensor needs to set the detection position at a position distant from the movable part to some extent, the space occupied by the device is increased, contradicting the demand for compactness of the device, and the visibility inside the device is reduced. In the conventional electronic component mounting apparatus, there are various problems in securing the safety of an operator on the feeder base, such as a problem on the operation side.

SUMMARY OF THE INVENTION It is an object of the present invention to provide an electronic component mounting apparatus capable of effectively closing a gap on a feeder base and ensuring worker safety at low cost.

[0007]

An electronic component mounting apparatus according to the present invention is an electronic component mounting apparatus for picking up an electronic component from a component supply unit by a transfer head and transferring and mounting the electronic component on a substrate. A feeder base in which a plurality of tape feeders having a shape in which a projection is formed on the upper surface of a horizontal bar-like body are arranged, and the transfer head is movably mounted in one direction, and the component supply unit and the substrate A moving beam that reciprocates between the two, and is provided below and below the center of the apparatus with respect to the apparatus beam and on the inside and above the center of the apparatus with respect to the protrusion of the tape feeder when the moving beam is positioned on the component supply unit. A cover member and cover rotating means for rotating the cover member about a fulcrum provided at the center of the apparatus are provided.

According to the present invention, the cover member is provided below the moving beam in the state where it is located on the component supply section with respect to the center of the apparatus and above the protrusion of the tape feeder with respect to the center of the apparatus. And a cover rotating means for rotating the cover member about a fulcrum provided at the lower side on the inside to close the gap on the feeder base without impairing the operability when attaching and detaching the tape feeder. Thus, the safety of workers can be ensured.

[0009]

Embodiments of the present invention will now be described with reference to the drawings. FIG. 1 is a perspective view of an electronic component mounting apparatus according to one embodiment of the present invention, FIG. 2 is a plan view of an electronic component mounting apparatus according to one embodiment of the present invention, and FIGS. FIG. 2 is a partial cross-sectional view of the electronic component mounting apparatus according to one embodiment.

First, an electronic component mounting apparatus will be described with reference to FIGS. FIG. 1 shows the overall appearance of the electronic component mounting apparatus 1, and FIG. 2 shows a plan view with the covers removed. In FIG. 2, the transport path 3 is X
It is arranged in the direction. The transport path 3 transports the substrate 4 and positions it at the mounting position. On both sides of the transport path 3, component supply units 5A and 5B for supplying electronic components are provided. A large number of tape feeders 6 for supplying a tape holding electronic components are mounted side by side on the component supply section 5A. A tray feeder 7 holding a tray 7a containing electronic components is attached to the component supply unit 5B.

At both ends of the gantry 2, a Y-axis table 8A,
8B is provided. Y-axis tables 8A and 8B drive X-axis tables 9A and 9B, which are moving beams, in the Y direction. A transfer head 10 is mounted on the X-axis tables 9A and 9B, and the transfer head 10 is movable in one direction (X direction) by the X-axis tables 9A and 9B. By driving the X-axis table 9A and the Y-axis table 8A, the X-axis table 9A reciprocates between the component supply unit 5A and the board 4. The transfer head 10 picks up an electronic component from the tape feeder 6 of the component supply unit 5A and mounts the electronic component on the substrate 4 on the transport path 3. By driving the X-axis table 9B and the Y-axis table 8B, the X-axis table 9B reciprocates between the component supply unit 5B and the board 4. Thus, the transfer head 10 picks up the electronic component from the tray feeder 7 of the component supply unit 5B and mounts the electronic component on the substrate 4.

Next, the cover of the electronic component mounting apparatus will be described with reference to FIG. As shown in FIG. 1, three fixed cover members 11, 12, and 13 (side cover portions) are attached to a front side surface (a side surface in a direction orthogonal to the transport path 3). The central cover member 12 is provided with an opening 12a from which the transport path 3 protrudes. A cover member 1 is provided on each of the front side surface and the opposite side surface.
5 and 14 are attached, and a signal tower 19 is provided above the cover member 14. Reference numeral 20 denotes an operation panel arranged on the cover members 13 and 14, respectively.
The ceiling surface of the apparatus is covered with a cover member 16, and on both sides of the cover member 16, openable covers 17, 18 for opening and closing the component supply units 5A, 5B are provided.

Next, the component supply section 5A will be described with reference to FIG. FIG. 3 shows a cross section of the component supply unit 5A. A large number of tape feeders 6 are arranged on a feeder base 21 arranged in a direction (Y direction) parallel to the transport path 3. The tape feeder 6 includes a horizontal rod-shaped main body 6.
The configuration shown in FIG. 7A is configured by combining a supply reel 6c for supplying a tape holding electronic components and a collection reel 6b for winding up and collecting a cover tape peeled off from the tape in front of the pickup position of the electronic components.

Here, the supply reel 6c is disposed so as to protrude outwardly from the main body 6a with respect to the center of the apparatus.
b is disposed so as to protrude upward at a substantially intermediate position of the main body 6a, and the tape feeder 6 is
It has a shape in which a collection reel 6b (projection) is formed on the upper surface of the (rod-like body).

The end of the main body 6a on the center side of the apparatus (the substrate 4 side in FIG. 3) is at a pickup position where the transfer head 10 sucks and holds the electronic components. The X-axis table 9A reciprocates between the upper side of the substrate 4 and the upper side of the component supply section 5A.

A cover support bracket 22 is attached to an end of the feeder base 21 on the center side of the apparatus.
Hinge pin 22 provided on cover support bracket 22
The end of the cover member 23 is rotatably supported by a. The cover member 23 is provided outside and below the X-axis table 9A with respect to the center of the apparatus and above and inside the center of the apparatus with respect to the collection reel 6b of the tape feeder 6 in a state where the cover member 23 is located on the component supply section 5A. The tape feeder 6 mounted on the feeder base 21 and the X-axis table 9A closest to the tape feeder 6 are arranged and shaped so as not to cause positional interference.

An opening / closing handle 23a is provided at the outer end of the cover member 23. By operating the opening / closing handle 23a in the up-down direction, the cover member 23 is pivoted around a hinge pin 22a provided on the lower side inside. It can rotate and open and close. Hinge pin 22a, open / close handle 2
3a is a cover rotating means. When the cover member 23 is in the closed position, the outer end of the cover member 23 is located close to the lower end of the opening / closing cover 18 of the component supply unit 5A.

FIG. 4 shows the function of the cover member 23. When the cover member 23 is in the closed position, the space in which the X-axis table 9A for moving the transfer head 10 reciprocates and the space in which the tape feeders 6 on the component supply unit 5A are arranged are completely covered by the cover member 23. Will be shut off.
Therefore, even if the operator inserts his / her hand for some reason into the gap formed on the feeder base 21 where the tape feeder 6 is not mounted, the X-axis table 9A and the transfer head 10 It is possible to prevent the occurrence of occupational accidents caused by careless operation without the finger touching the movable parts such as the like.

FIG. 5 shows the handling of the cover at the time of maintenance or replacement of the feeder. If it is necessary to remove the tape feeder 6, first open and close the cover 1
Release 8 (arrow (1)). And X axis table 9A
From the component supply unit 5A toward the inside of the apparatus (arrow (2)). As a result, the space above the cover member 23 becomes a free space. In this state, the open / close handle 23a is gripped and pulled upward (arrow (3)).

When a free space is secured above the tape feeder 6, the outer end of the main body 6a mounted on the feeder base 21 is lifted (arrow (4)), and then the main body 6a Is released and pulled out (arrow (5)). Thus, the removal of the tape feeder is completed. In the above operation, since the cover member 23 is rotatable about the fulcrum on the center side of the apparatus, good workability is secured without hindering work from the outside of the apparatus.

As described above, by attaching the cover member 23 having the above-described structure to the component supply section 5A to which the tape feeder 6 is mounted, it is possible to use an area sensor which has been conventionally employed as a safety measure in such a portion. In comparison with this, it is possible to obtain an excellent effect such that a reliable accident prevention effect can be obtained at a low cost, the space of the device is not increased, and the visibility inside the device is not impaired.

[0022]

According to the present invention, the moving beam in the state of being located on the component supply section is provided below the center of the apparatus outside the center of the apparatus and above the projection of the tape feeder inside the center of the apparatus. Since the cover member and the cover rotating means for rotating the cover member about a fulcrum provided on the inner lower side are provided, the gap on the feeder base is closed without impairing the operability when attaching and detaching the tape feeder. Thus, the safety of the worker can be ensured.

[Brief description of the drawings]

FIG. 1 is a perspective view of an electronic component mounting apparatus according to an embodiment of the present invention.

FIG. 2 is a plan view of the electronic component mounting apparatus according to the embodiment of the present invention;

FIG. 3 is a partial sectional view of the electronic component mounting apparatus according to one embodiment of the present invention;

FIG. 4 is a partial cross-sectional view of the electronic component mounting apparatus according to one embodiment of the present invention;

FIG. 5 is a partial sectional view of the electronic component mounting apparatus according to one embodiment of the present invention;

[Explanation of symbols]

 Reference Signs List 4 Board 5A Component supply unit 6 Tape feeder 6a Main unit 6b Collection reel 9A X-axis table 10 Transfer head 21 Feeder base 22 Cover support bracket 22a Hinge pin 23 Cover member 23a Open / close handle

Claims (1)

[Claims] 1. An electronic component mounting apparatus for picking up an electronic component from a component supply unit by a transfer head and transferring and mounting the electronic component on a substrate, wherein a projection is provided on an upper surface of a horizontal rod-shaped body provided in the component supply unit. A feeder base capable of arranging a plurality of formed tape feeders, a moving beam on which the transfer head is movably mounted in one direction and reciprocates between the component supply unit and the substrate, and a component supply unit. A cover member provided below and outside the center of the apparatus with respect to the moving beam in the state where the moving beam is located and inside and above the center of the apparatus with respect to the protrusion of the tape feeder, and the cover member is provided on the center side of the apparatus. An electronic component mounting apparatus, comprising: a cover rotating means for rotating about a fulcrum.