JP3767417B2 - Electronic component mounting equipment - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic component mounting apparatus for mounting electronic components on a substrate.
[0002]
[Prior 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 constitute a component supply unit, and this component supply unit is arranged on the side of the mounting stage of the electronic component mounting apparatus. 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 necessarily mounted, and the apparatus is operated with the tape feeder partially not mounted on the feeder base. There is a case. In this case, it is possible for the operator 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 some reason, the worker's safety is increased. Since the electronic component mounting apparatus may be damaged, various safety measures are taken for the purpose of eliminating the unsafe state and preventing the unsafe action caused by the gap generated on the feeder base.
[0004]
Conventionally, as such a safety measure, an area sensor is arranged with the feeder base range as a detection target, and if an entry of a body part such as an operator's hand is detected, the operation of the transfer head is stopped. As a result, the safety of workers was ensured.
[0005]
[Problems to be solved by the invention]
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 cost disadvantage in that it increases the cost of the device. Furthermore, since the area sensor needs to set the detection position at some distance from the movable part, the space occupied by the device increases, contrary to the demand for device compactness, and the visibility inside the device decreases. In the conventional electronic component mounting apparatus, such as malfunctions on the operation surface, there are various problems in ensuring the safety of workers on the feeder base.
[0006]
SUMMARY OF THE INVENTION An object of the present invention is to provide an electronic component mounting apparatus that can effectively close a gap on a feeder base and ensure worker safety at low cost.
[0007]
[Means for Solving the Problems]
An electronic component mounting apparatus according to the present invention is an electronic component mounting apparatus that picks up an electronic component from a component supply unit by a transfer head, and transfers and mounts the electronic component on a substrate, and is an upper surface of a horizontal rod-like body disposed in the component supply unit. A feeder base capable of arranging a plurality of tape feeders each having a protruding portion formed thereon, a moving beam in which the transfer head is movably mounted in one direction and reciprocates between the component supply unit and the substrate, A cover member provided on the lower side outside the apparatus center with respect to the moving beam in the state positioned on the component supply unit and on the inner side upper side with respect to the apparatus center than the protrusion of the tape feeder, and the cover member Cover rotating means for rotating around a fulcrum provided on the center side.
[0008]
According to the present invention, the cover member provided on the outside lower side with respect to the apparatus center than the moving beam in the state positioned on the component supply unit and on the inside upper side with respect to the apparatus center with respect to the protrusion of the tape feeder, By providing a cover rotating means for rotating the cover member about a fulcrum provided on the inside and lower side, the gap on the feeder base is closed without impairing the operability when attaching and detaching the tape feeder. Can be secured.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Next, embodiments of the present invention will be described with reference to 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 an embodiment of the present invention, and FIGS. It is a fragmentary sectional view of the electronic component mounting apparatus of one embodiment.
[0010]
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, a conveyance path 3 is arranged on the gantry 2 in the X direction. The conveyance path 3 conveys the substrate 4 and positions it at the mounting position. On both sides of the conveyance path 3, component supply units 5A and 5B for supplying electronic components are disposed. A large number of tape feeders 6 for supplying a tape holding electronic components are mounted side by side on the component supply unit 5A. A tray feeder 7 that holds a tray 7a that stores electronic components is attached to the component supply unit 5B.
[0011]
Y-axis tables 8A and 8B are disposed at both ends of the gantry 2. The Y-axis tables 8A and 8B drive the X-axis tables 9A and 9B, which are moving beams, in the Y direction, respectively. 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 substrate 4. The transfer head 10 picks up an electronic component from the tape feeder 6 of the component supply unit 5 </ b> A and mounts it on the substrate 4 on the conveyance path 3. Further, 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 substrate 4. Thereby, the transfer head 10 picks up an electronic component from the tray feeder 7 of the component supply unit 5 </ b> B and mounts it on the substrate 4.
[0012]
Next, the cover part 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 the front side surface (side surface in the direction orthogonal to the conveyance path 3). The central cover member 12 is provided with an opening 12a from which the conveyance path 3 protrudes. Cover members 15 and 14 are attached to the front side surface and the opposite side surface, respectively, and a signal tower 19 is provided above the cover member 14. Reference numerals 20 denote operation panels disposed on the cover members 13 and 14, respectively. The apparatus ceiling surface is covered with a cover member 16, and opening / closing covers 17 and 18 for opening and closing the component supply units 5 </ b> A and 5 </ b> B are provided on both sides of the cover member 16.
[0013]
Next, the component supply unit 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 parallel to the transport path 3 (Y direction). The tape feeder 6 collects and collects a supply reel 6c for supplying a tape holding an electronic component and a cover tape peeled off from the tape on the front side of the pickup position of the electronic component on a horizontal bar-shaped main body 6a. The reel 6b is combined.
[0014]
Here, the supply reel 6c is disposed so as to project outward from the main body 6a with respect to the center of the apparatus, the collection reel 6b is disposed so as to project upward at a substantially intermediate position of the main body 6a, and the tape feeder 6 is disposed horizontally. A recovery reel 6b (protrusion) is formed on the upper surface of the main body 6a (bar-shaped body).
[0015]
The end of the main body 6a on the apparatus center side (substrate 4 side in FIG. 3) is a pickup position for attracting and holding electronic components by the transfer head 10, and in the mounting operation by the transfer head 10, the X axis The table 9A reciprocates between the upper side of the substrate 4 and the upper side of the component supply unit 5A.
[0016]
A cover support bracket 22 is attached to an end portion of the feeder base 21 on the apparatus center side, and an end portion of the cover member 23 is rotatably supported by a hinge pin 22a provided on the cover support bracket 22. . The cover member 23 is provided on the outside lower side with respect to the apparatus center than the X-axis table 9A in a state of being positioned on the component supply unit 5A and on the inside upper side with respect to the apparatus center than the collection reel 6b of the tape feeder 6. The tape feeder 6 mounted on the feeder base 21 and the X-axis table 9A in the state closest to the tape feeder 6 are arranged and shaped so as not to cause positional interference.
[0017]
An opening / closing handle 23a is provided at an outer end portion of the cover member 23. By operating the opening / closing handle 23a in the vertical direction, the cover member 23 rotates about a hinge pin 22a provided on the lower side inside. It can be opened and closed. The hinge pin 22a and the opening / closing handle 23a serve as cover rotating means. When the cover member 23 is in the closed position, the outer end of the cover member 23 is in a position close to the lower end of the opening / closing cover 18 of the component supply unit 5A.
[0018]
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 feeder 6 on the component supply unit 5A is arranged are completely covered by the cover member 23. Will be blocked. Therefore, even if the operator inserts his / her hand for some reason in the gap generated in the unmounted portion where the tape feeder 6 is not mounted on the feeder base 21, the X-axis table 9 </ b> A and the transfer head 10. Thus, it is possible to prevent the occurrence of an occupational accident caused by an inadvertent operation.
[0019]
FIG. 5 shows the handling of the cover during maintenance or feeder replacement. When it is necessary to remove the tape feeder 6, the opening / closing cover 18 is first opened (arrow (1)). Then, the X-axis table 9A is retracted from the component supply unit 5A toward the inside of the apparatus (arrow (2)). As a result, the upper portion of the cover member 23 becomes a free space, and in this state, the open / close handle 23a is gripped and pulled upward (arrow (3)).
[0020]
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 locked. Release the state and pull it outward (arrow (5)). Thereby, the removal of the tape feeder is completed. In the above operation, the cover member 23 is rotatable about the fulcrum on the center side of the apparatus, so that the work from the outside of the apparatus is not hindered and good workability is ensured.
[0021]
Thus, by attaching the cover member 23 having the above-described configuration to the component supply unit 5A to which the tape feeder 6 is mounted, compared to the case where an area sensor that has been conventionally adopted as a safety measure in such a part is used. In addition, a reliable accident prevention effect can be obtained at low cost, and an excellent effect can be obtained such that the space of the apparatus is not increased and the visibility inside the apparatus is not impaired.
[0022]
【The invention's effect】
According to the present invention, the cover member provided on the outside lower side with respect to the apparatus center than the moving beam in the state positioned on the component supply unit and on the inside upper side with respect to the apparatus center with respect to the protrusion of the tape feeder, Cover rotating means for rotating the cover member around a fulcrum provided on the inside lower side, so that the gap on the feeder base is closed without impairing the operability when attaching and detaching the tape feeder. Can be secured.
[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 an electronic component mounting apparatus according to an embodiment of the present invention. FIG. 4 is a partial sectional view of an electronic component mounting apparatus according to an embodiment of the present invention. FIG. 5 is a partial sectional view of an electronic component mounting apparatus according to an embodiment of the present invention. Explanation of]
4 Substrate 5A Component supply unit 6 Tape feeder 6a Main unit 6b Recovery reel 9A X-axis table 10 Transfer head 21 Feeder base 22 Cover support bracket 22a Hinge pin 23 Cover member 23a Opening / closing handle

Claims (1)

An electronic component mounting apparatus that picks up an electronic component from a component supply unit by a transfer head, and transfers and mounts the electronic component on a substrate, and has a shape in which a protrusion is formed on the upper surface of a horizontal rod-like body disposed in the component supply unit. In a state where a feeder base capable of arranging a plurality of tape feeders, a moving beam in which the transfer head is movably mounted in one direction and reciprocates between the component supply unit and the substrate, and a position on the component supply unit A cover member provided on the outside lower side with respect to the apparatus center than the moving beam and on the inside upper side with respect to the apparatus center with respect to the protrusion of the tape feeder, and a fulcrum provided on the apparatus center side with respect to the cover member An electronic component mounting apparatus comprising: a cover rotating means for rotating as a cover.

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