JPH05267893A - Electronic component mounting apparatus - Google Patents

Abstract

PURPOSE:To reduce a mounting operation time by improving the efficiency of utilization of a tool when electronic components are mounted on a printed board by means of an electronic component mounting apparatus. CONSTITUTION:A tool holder traveling mechanism 21 is provided which causes a tool 6 to be positioned at a location outside a specified location A by moving a tool holder 5 which holds the tool 6 in the adjacent area above the specified location A to which an electronic component to be mounted next time is supplied, and also allows the tool 6 already held by a tool holding part 12 of a manipulator 8 and used in a previous mounting operation to hold an electronic component when the same type or a different type of electronic component having the same configuration is supplied to the specified location A of a plurality of electronic component supply sections 2.

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 printed board.

[0002]

2. Description of the Related Art As is well known, an electronic circuit, which is a main component of electronic equipment, is usually constructed by mounting electronic parts on a printed circuit board. Then, as a method of mounting the electronic component on the printed circuit board, it is generally performed automatically by a mounting device.

Conventionally, as this main electronic component mounting apparatus,
A typical one will be described below by taking the one shown in FIG. 5 as an example. In the figure, reference numeral 1 is a line for carrying a printed circuit board while mounting electronic components, that is, an assembly line for a printed circuit board unit. .. which form a part of the electronic component mounting apparatus on the stage are provided on the side of the assembly line 1. The electronic component supply units 2, 2 ... Supply a plurality of different electronic components to the side of the assembly line 1, and convey paths 3, 3, ... For supplying the electronic components to the prescribed positions A, A. Are provided in a direction orthogonal to the assembly line 1. The prescribed positions A, A ... Are arranged in a straight line adjacent to each other along the assembly line 1, and tool holders 5, 5, ... Are respectively provided on the upper peripheral portions of the prescribed positions A, A. It is arranged. The tool holders 5, 5 ... Hold special tools 6, 6 ... Having a gripping portion corresponding to the shape of the electronic component.

Further, a manipulator main body 8 provided with a tool holding portion 12 for holding the tools 6, 6 ... Is provided on the XY moving mechanism 7 above the tool holders 5, 5 ,. It is supported. The XY moving mechanism 7 is composed of an X-direction moving portion 9 that moves in the X-direction and a Y-direction moving portion 10 that is supported by the X-direction moving portion 9 so as to be movable in the Y-direction. The manipulator body 8 is moved in the XY directions by the moving mechanism 7, that is,
It is possible to move in the direction of the assembly line 1 and the direction orthogonal thereto.

In such a structure, when the printed circuit board conveyed by the assembly line 1 is located in front of the electronic component supply section 2, the manipulator body 8 is placed with the tool 6 corresponding to the electronic component mounted on the printed circuit board. The tool 6 is moved to the position where it is present and the tool 6 is held. Then, the manipulator body 8 itself moves, and operates the tool 6 to grip the first electronic component defined by the program and move in the printed board direction to mount the electronic part on the printed board. After that, the above operation is repeated to sequentially mount the electronic components to be mounted on the printed circuit board on the stage.

[0006]

In the electronic component mounting apparatus having the above structure, for example, the same electronic component or an electronic component that can be grasped by the same tool is supplied to the prescribed positions of a plurality of electronic component supply units. In that case, even though each electronic component can be mounted on the printed circuit board with the same tool, it is possible to mount each electronic component using a separate tool that is placed for each electronic component. It is inevitable from a practical point of view. That is,
If an attempt is made to grip an electronic component supplied to another specified position with the same tool, it will interfere with another tool held by the tool holder at the upper peripheral portion of the other specified position. Therefore, in the conventional apparatus, even when the same type of electronic component or the different type of electronic component having the same shape is supplied to different specified positions, the same tool is used to mount the component on the printed circuit board. There is a problem that it is not possible to mount these electronic components of the same type or electronic components of the same shape different from each other using different tools, so that the mounting time for mounting the components becomes long In addition, there was a problem that the usage efficiency of the tool was poor.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an electronic component mounting apparatus capable of improving the utilization efficiency of tools and shortening the mounting work time.

[0008]

An electronic component mounting apparatus according to a first aspect of the present invention includes a plurality of electronic component supply units for supplying electronic components to prescribed positions, and a plurality of electronic component holding units for holding these electronic components in accordance with the shapes of the electronic components. Tools, a plurality of tool holders that respectively hold these tools around the specified positions of the corresponding electronic components, a manipulator body that selectively holds the tools and operate the tools, and a printed circuit board The manipulator main body holds a tool corresponding to each electronic component, holds the corresponding electronic component by the tool, and attaches the electronic component to a printed circuit board to be conveyed in the assembly line. In the electronic component mounting device to be mounted, the manipulator main body moves in the direction of the second tool to be held while holding the first tool. To come, is characterized in that a tool holder moving mechanism is moved to a position out of the second tool from the periphery of the predetermined position permits the lifting come of the one tool. The electronic component mounting apparatus of the second invention is arranged such that the specified positions of the electronic component supply unit of the first invention, where the components are supplied, are adjacent to each other on the side of the assembly line along the assembly line. The tool holder is arranged in the upper peripheral portion of these specified positions corresponding to each electronic component,
Each of the tool holders is configured to retract in a direction opposite to the assembly line when the manipulator holds and brings one tool to allow the one tool to be brought. Is characterized by.

[0009]

According to the electronic component mounting apparatus of the present invention, for example, when the same type of electronic components or different types of electronic components of the same shape are supplied to the prescribed positions of the plurality of electronic component supplying sections, By moving the tool holder that holds the tool in the peripheral part of the specified position where the electronic components to be mounted are supplied by the tool holder moving mechanism and moving the tool to a position outside the peripheral part of the specified position, The next electronic component can be gripped by the tool already held.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of an electronic component mounting apparatus of the present invention will be described below with reference to FIGS. The same parts as those of the conventional example are designated by the same reference numerals and the description thereof will be omitted. As shown in the figure, in the electronic component mounting apparatus of the present embodiment, the tool holders 5, 5, ... Are provided with tool holder moving mechanisms 21, 21 ,. The tool holder moving mechanisms 21, 21 ... Include the cylinder 22 and the cylinder 2.
2 and a rod 23 that is movable back and forth. The tip of the rod 23 is connected to the tool holder 5.

That is, when the rod 23 is pulled in by the cylinder 22 of the tool holder moving mechanism 21, the tool holder 5 is pulled in the direction of arrow A in FIGS. 3 and 4 and held by the tool holder 5. Tool 6
Is moved to a position (a position indicated by a chain line in FIGS. 3 and 4) deviated from the upper peripheral portion of the electronic component at the specified position A. Further, in this state, when the rod 23 is projected by the cylinder 22 of the tool holder moving mechanism 21, the tool holder 5 is moved in the arrow B direction in FIGS. 3 and 4 and held by the tool holder 5. The tool 6 is placed around the upper part of the electronic component at the specified position A. Further, each tool holder 5 is provided with a spring 15,
The spring 15 can absorb an impact when the tool 6 is held by the tool holder 5.

Next, the mounting operation of the electronic component on the printed circuit board by the electronic component mounting apparatus having the above configuration will be described. First, when mounting an electronic component to be supplied to a specified position indicated by reference sign A ′ in FIG. 4, it is held by the tool holding portion 12 of the manipulator body 8 and held by the tool holder 5 ′ at the upper peripheral portion of the specified position A ′. The tool (one tool) 6'is held. Then, the electronic component supplied to the prescribed position A'is held by the tool 6'held in the tool holder 12 of the manipulator body 8. Next, the manipulator body 8 is moved by the XY moving mechanism 7 in the direction of the printed circuit board supported by the assembly line 1, and electronic components are mounted on the printed circuit board. Next, when mounting other electronic components, the tool 6'held in the tool holding portion 12 of the manipulator body 8 for mounting the electronic components is returned to the tool holder 5 ', and the tool holder 5' Hold tool 6'to '.

Then, the connection between the tool 6'and the tool holding portion 12 of the manipulator body 8 is released, and the manipulator body 8 is moved by the XY moving mechanism 7,
The manipulator body 8 is moved above the tool (second tool) 6 ″ corresponding to the electronic component to be mounted next,
The tool 6 ″ is connected to the tool holding portion 12 of the manipulator body 8. Then, the tool 6 ″ is detached from the tool holder 5 ″, and the electronic component supplied to the prescribed position A ″ is gripped by the tool 6 ″. Then, the manipulator body 8 is moved in the direction of the printed circuit board, and the electronic component gripped by the tool 6 ″ is mounted on the printed circuit board. After that, the above operation is repeated,
Electronic components to be mounted on the stage are sequentially mounted on the printed circuit board.

When mounting electronic components on a printed circuit board, for example, electronic components of the same type or different types of electronic components of the same shape are provided at prescribed positions A, A ... In some cases, the same type of electronic components or different types of electronic components of the same shape may be mounted.

In this case, according to the mounting apparatus of this embodiment,
The following mounting operations can be performed. That is, when the electronic component to be mounted next is an electronic component of the same type as the electronic component mounted last time or an electronic component of the same shape different from the electronic component mounted last time, the specified position A where the electronic component to be mounted next is placed. The tool holder 5 ″ holding the tool 6 ″ is moved in the arrow A direction in FIGS. 3 and 4 by pulling the rod 23 by the cylinder 22 of the tool holder moving mechanism 21 at the upper peripheral portion of the ″. .

As a result, the tool 6 "held by the tool holder 5" is moved while being held by the tool holder 5 ", and is displaced from the upper peripheral portion of the electronic component placed at the prescribed position A". Placed in. Then, the manipulator body 8 is moved by the XY moving mechanism 7 to the specified position A ″ of the electronic component supply unit 2 to which the electronic component to be mounted this time is supplied, while holding the tool 6 ′ used in the previous mounting. The electronic component placed at the prescribed position A ″ is moved and gripped by the tool 6 ′ used for the previous mounting.

At this time, the tool 6 ″ held by the tool holder 5 ″ at the upper peripheral portion of the specified position A ″ is moved to the specified position A ″ by the movement of the tool holder 5 ″ by the tool holder moving mechanism 21. The tool 6 ″ held by the tool holder 5 ″ and the tool 6 ′ held by the tool holding portion 12 of the manipulator body 8 are arranged at a position separated from the upper peripheral part of the tool holder 5 ″. Interference is prevented, and the tool holder 1 of the manipulator body 8
The component 6 can be held by the tool 6'held by the tool 2. Then, the electronic component is gripped by the tool 6 ′ held by the tool holding portion 12 of the manipulator body 8, and then the electronic component is mounted on the printed board.

As described above, according to the electronic component mounting apparatus of the above-described embodiment, the tools 6, 6 ...
The tool holder moving mechanisms 21, 21 ... Are provided on the tool holders 5, 5, ..., which are held in the upper peripheral portion of the ..., and the tool holder moving mechanisms 21, 21. Since it is possible to move back and forth, for example, the same type of electronic components or different types of electronic components of the same shape are supplied to the prescribed positions A, A ... Of the plurality of electronic component supply units 2, 2 ,. When mounting different types of electronic components or different types of electronic components of the same shape, the specified position A ″ to which the electronic component to be mounted next is supplied.
The tool holder 5 ″ holding the tool 6 ″ at the upper peripheral portion of the tool is moved backward by the tool holder moving mechanism 21 to dispose the tool 6 ″ at a position deviating from the upper peripheral portion of the prescribed position A ″, and the manipulator The next electronic component can be gripped by the tool 6'which is already held by the tool holding portion 12 of the main body 8. Therefore, the use efficiency of the tools 6, 6, ... Can be significantly improved,
It is possible to greatly reduce the mounting work time of electronic components.

The specific structure and configuration of the electronic component mounting apparatus of the above embodiment is not limited to the embodiment.

[0020]

As described above, according to the electronic component mounting apparatus of the present invention, the following effects can be obtained. The tool holder moving mechanism that moves the tool holders that hold the tools in the peripheral part of the specified position and disposes the tool in a position deviated from the peripheral part of the specified position is provided. Since the tool holder can be moved back and forth with respect to the assembly line, for example, the same type of electronic components or different types of electronic components of the same shape can be supplied to prescribed positions of a plurality of electronic component supply units, and When mounting electronic components or electronic components of the same shape that differ in type, move the tool holder that holds the tool at the peripheral part of the specified position where the electronic component to be mounted next is supplied, using the tool holder moving mechanism. Place this tool in a position outside the peripheral of the specified position, and use the tool already held in the manipulator It is possible to enable gripping of the electronic component. Therefore, the utilization efficiency of the tool can be greatly improved, and the mounting work time of the electronic component can be significantly shortened.

[Brief description of drawings]

FIG. 1 is a side view of an electronic component mounting apparatus for explaining the structure of the electronic component mounting apparatus of the present invention.

FIG. 2 is a plan view of the electronic component mounting apparatus for explaining the structure of the electronic component mounting apparatus of the present invention.

FIG. 3 is a side view of a part of the electronic component mounting apparatus for explaining the structure of the electronic component mounting apparatus of the present invention.

FIG. 4 is a plan view of a part of the electronic component mounting apparatus for explaining the structure of the electronic component mounting apparatus of the present invention.

FIG. 5 is a perspective view of an electronic component mounting apparatus for explaining a schematic configuration of the electronic component mounting apparatus.

[Explanation of symbols]

 1 Assembly Line 2 Electronic Component Supply Section 5 Tool Holder 6 Tool 8 Manipulator Main Body 21 Tool Holder Moving Mechanism A Specified Position

Claims (2)

[Claims] 1. A plurality of electronic component supply units for supplying electronic components to prescribed positions, a plurality of tools for gripping these electronic components according to the shape of the electronic components, and a plurality of tools for grasping these tools at the prescribed positions of the corresponding electronic components. A plurality of tool holders that are respectively held in the peripheral portion, a manipulator main body that selectively holds the tool and operates the tool, and an assembly line on which a printed circuit board is transported, and in the manipulator main body, In an electronic component mounting apparatus, which holds a tool corresponding to an electronic component, grips the corresponding electronic component by the tool, and mounts the electronic component on a printed circuit board that is conveyed in an assembly line, wherein the manipulator body is , While holding one tool, when moving in the direction of the second tool that is waiting, move the second tool from the peripheral part of its specified position. An electronic component mounting apparatus characterized in that a tool holder moving mechanism is moved to a position allowing the lifting come of the one tool. 2. The specified positions of the electronic parts supply section to which the parts are supplied are arranged along the assembly line so as to be adjacent to each other laterally of the assembly line, and the tool holder is provided with these specified positions. Is arranged corresponding to each electronic component in the upper peripheral portion of the, the tool holder, when the manipulator main body holds one tool, respectively, so as to allow the bringing of this one tool, The electronic component mounting apparatus according to claim 1, wherein the electronic component mounting apparatus is configured to retract in a direction opposite to the assembly line.