JP3129822B2 - Electronic component mounting equipment - Google Patents

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 an electronic component on a printed circuit board.

[0002]

2. Description of the Related Art As is well known, an electronic circuit, which is a main component of an electronic device, is usually formed by mounting electronic components on a printed circuit board. A method for mounting an electronic component on a printed circuit board is generally performed automatically by a mounting apparatus.

Conventionally, as this main electronic component mounting apparatus,
Representative ones will be described below by taking the one shown in FIG. 5 as an example. In the figure, reference numeral 1 denotes a line for transporting a printed circuit board while mounting electronic components, that is, an assembly line for a printed circuit board unit. On the side of the assembly line 1, electronic component supply units 2, 2,... Constituting a part of an electronic component mounting apparatus on the stage are provided. The electronic component supply units 2, 2,... Supply a plurality of different electronic components to the sides of the assembly line 1, and supply the respective electronic components to specified positions A, A,. Are provided in a direction orthogonal to the assembly line 1. Are arranged in a straight line adjacent to each other along the assembly line 1. Tool holders 5, 5,... It is arranged. The tool holders 5, 5,... Hold dedicated tools 6, 6,.

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

In such a configuration, when the printed circuit board conveyed by the assembly line 1 is positioned in front of the electronic component supply section 2, the manipulator body 8 places 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, and the tool 6 is held. The manipulator body 8 itself moves, and at the same time, manipulates the tool 6 to hold the first electronic component defined by the program, moves toward the printed board, and mounts the electronic component on the printed board. Thereafter, the above operation is repeated, and the electronic components to be mounted on the stage are sequentially mounted on the printed circuit board.

[0006]

By the way, in the electronic component mounting apparatus having the above configuration, for example, the same electronic component or an electronic component that can be grasped by the same tool is supplied to a specified position of a plurality of electronic component supply units. In this case, each electronic component can be mounted on a printed circuit board using the same tool, but it is necessary to mount each electronic component using a separate tool arranged 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, the electronic component interferes with another tool held by a tool holder at a peripheral portion above the other specified position. Therefore, in the conventional device, even when electronic components of the same type or electronic components of different types and the same shape are supplied to different specified positions, the components are mounted on the printed circuit board using the same tool. The problem is that the same type of electronic components or different types of electronic components of the same shape must be mounted using different tools, which increases the mounting time for mounting the components. In addition, there was a problem that the use efficiency of the tool was poor.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide an electronic component mounting apparatus capable of improving the use efficiency of a tool and shortening a mounting work time.

[0008]

According to a first aspect of the present invention, there is provided an electronic component mounting apparatus comprising: a plurality of electronic component supply units for supplying an electronic component to a predetermined position; Tools, a plurality of tool holders respectively holding the tools around the specified position of the corresponding electronic component, a manipulator body for selectively holding the tools and operating the tools, and a printed circuit board. The manipulator body holds a tool corresponding to each electronic component, holds the corresponding electronic component by the tool, and transfers the electronic component to a printed circuit board conveyed on the assembly line. In the electronic component mounting apparatus that is to be mounted, the manipulator body moves in the direction of the two standby tools while holding one 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. According to a second aspect of the present invention, there is provided an electronic component mounting apparatus, wherein a prescribed position of the electronic component supply unit according to the first aspect of the present invention at which a component is supplied is disposed along the assembly line and adjacent to a side of the assembly line. The tool holder is arranged corresponding to each electronic component in the upper peripheral portion of these prescribed positions,
The tool holder is configured to retreat in a direction opposite to the assembly line so as to allow bringing of the one tool when the manipulator holds and brings one tool. It is characterized by.

[0009]

According to the electronic component mounting apparatus of the present invention, for example, when electronic components of the same type or electronic components of different types with the same shape are supplied to prescribed positions of a plurality of electronic component supply units, By moving the tool holder that holds the tool around 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 off the periphery of the specified position, the manipulator body The next electronic component can be gripped by the tool already held.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an electronic component mounting apparatus according to the present invention will be described below with reference to FIGS. The same components as those of the conventional example are denoted by the same reference numerals, and description thereof is omitted. As shown in the figure, in the electronic component mounting apparatus of the present embodiment, tool holder moving mechanisms 21, 21... Are provided in the tool holders 5, 5,. The tool holder moving mechanisms 21, 21...
2 and a rod 23 provided to be able to move forward and backward. The tip of the rod 23 is connected to the tool holder 5.

That is, when the rod 23 is retracted by the cylinder 22 of the tool holder moving mechanism 21, the tool holder 5 is retracted in the direction of arrow A in FIGS. 3 and 4, and is held by the tool holder 5. Tool 6
Move to a position (a position shown by a chain line in FIGS. 3 and 4) that deviates from the upper peripheral portion of the electronic component at the prescribed position A. In this state, when the rod 23 is protruded by the cylinder 22 of the tool holder moving mechanism 21, the tool holder 5 is moved in the direction of arrow B in FIGS. 3 and 4 and is held by the tool holder 5. The tool 6 is arranged at the upper peripheral portion of the electronic component at the specified position A. The tool holders 5 are provided with springs 15, respectively.
The spring 15 can absorb a shock when the tool 6 is held by the tool holder 5.

Next, an operation of mounting an electronic component on a 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 numeral A 'in FIG. 4, the electronic component is held by the tool holder 12 of the manipulator body 8 at a peripheral portion above the specified position A'. The tool (one tool) 6 'is held. Then, the electronic component supplied to the specified position A 'is gripped by the tool 6' held by the tool holding portion 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 board supported by the assembly line 1, and the electronic components are mounted on the printed board. Next, when mounting another electronic component, the tool 6 'held by the tool holding portion 12 of the manipulator body 8 for mounting the electronic component is returned to the tool holder 5'. ′ To hold the tool 6 ′.

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 a tool (second tool) 6 ″ corresponding to an electronic component to be mounted next,
The tool 6 "is connected to the tool holding portion 12 of the manipulator body 8. The tool 6" is removed from the tool holder 5 ", and the electronic component supplied to the specified 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 held 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 a printed circuit board.

When electronic components are mounted on a printed circuit board, for example, electronic components of the same type or electronic components of different types having the same shape are placed at prescribed positions A, A. Is supplied, and these same types of electronic components or different types of electronic components having the same shape may be mounted.

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

As a result, the tool 6 "held by the tool holder 5" is moved while being held by the tool holder 5 ", and is shifted from the upper peripheral portion of the electronic component placed at the prescribed position A". To be placed. Then, while the manipulator body 8 holds the tool 6 ′ used in the previous mounting by the XY moving mechanism 7, the manipulator body 8 moves to the specified position A ″ of the electronic component supply unit 2 to which the electronic component to be mounted this time is supplied. It moves and grips the electronic component placed at the specified position A "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 along with the movement of the tool holder 5" by the tool holder moving mechanism 21. Of 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 because the tool 6 ′ is located at a position deviated from the upper peripheral portion of the manipulator. Interference is prevented, and the tool holding section 1 of the manipulator body 8 is prevented.
The component 6 can be gripped 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 thereafter, the electronic component is mounted on a printed circuit board.

As described above, according to the electronic component mounting apparatus of the above embodiment, the tools 6, 6,...
Are provided with tool holder moving mechanisms 21, 21... On the upper peripheral portion of the tool holder 5, 5,..., And the tool holders 5, 5,. The electronic components of the same type or different types of the same shape are supplied to the specified positions A, A,... Of the plurality of electronic component supply units 2, 2,. When mounting electronic components of the same type or electronic components of the same shape but different types, the specified position A ″ to which the next electronic component to be mounted is supplied.
The tool holder 5 ″ holding the tool 6 ″ at the upper peripheral portion is retracted by the tool holder moving mechanism 21, and the tool 6 ″ is disposed at a position outside the upper peripheral portion of the specified position A ″, and the manipulator is moved. The next electronic component can be gripped by the tool 6 ′ already held in the tool holding portion 12 of the main body 8. Therefore, the use efficiency of the tools 6, 6,... Can be greatly improved,
The work time for mounting electronic components can be greatly reduced.

The specific structure and configuration of the electronic component mounting apparatus of the above embodiment are 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. By providing a tool holder moving mechanism for moving the tool holder for holding the tool at the peripheral portion of the specified position and disposing the tool at a position deviating from the peripheral portion of the specified position, the tool holder moving mechanism provides Since the tool holder is capable of moving back and forth with respect to the assembly line, for example, the same type of electronic component or a different type of electronic component is supplied to a predetermined position of a plurality of electronic component supply units, and these same type of electronic components are supplied. When mounting electronic components or electronic components of the same shape of different types, the tool holder holding the tool is moved by the tool holder moving mechanism around the specified position where the next electronic component to be mounted is supplied. This tool is placed at a position deviating from the periphery of the specified position, and the next operation is performed by the tool already held on the manipulator body. It is possible to enable gripping of the electronic component. Therefore, the use efficiency of the tool can be greatly improved, and the mounting operation time of the electronic component can be significantly reduced.

[Brief description of the drawings]

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

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

FIG. 5 is a perspective view of the electronic component mounting apparatus illustrating a schematic configuration of the electronic component mounting apparatus.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Assembly line 2 Electronic component supply part 5 Tool holder 6 Tool 8 Manipulator main body 21 Tool holder moving mechanism A Prescribed position

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H05K 13/04

Claims (2)

(57) [Claims] A plurality of electronic component supply units for supplying the electronic component to a predetermined position; a plurality of tools for gripping the electronic component according to the shape of the electronic component; A plurality of tool holders respectively held in a peripheral portion, a manipulator body for selectively holding the tool, operating the tool, and an assembly line on which a printed circuit board is transported, wherein the manipulator body includes: An electronic component mounting apparatus which holds a tool corresponding to an electronic component, holds the corresponding electronic component by the tool, and mounts the electronic component on a printed circuit board conveyed on an assembly line, wherein the manipulator body is When holding the one tool and moving in the direction of the two waiting tools, the two tools are moved from the periphery of the 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. A specified position where components of the electronic component supply unit are supplied is disposed along the assembly line and adjacent to each other on a side of the assembly line, and the tool holder is provided at the specified position. The tool holder is arranged corresponding to each electronic component at an upper peripheral portion of the manipulator body, when the manipulator main body holds and brings one tool, to allow the one tool to be brought. 2. The electronic component mounting apparatus according to claim 1, wherein the electronic component mounting apparatus is configured to retreat in a direction opposite to the assembly line.