JP2797484B2 - Electronic component mounting equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus used when, for example, electronic components are sucked and mounted on a circuit board.

2. Description of the Related Art Conventionally, as an electronic component mounting device for mounting electronic components on a circuit board, a plurality of component supply units accommodating a large number of electronic components are arranged in parallel on a moving table, and the moving table is mounted on a component supplying unit. The electronic components accommodated in an arbitrary component supply unit can be taken out at a predetermined position by being configured to be movable in the parallel direction, while the position where the electronic component of the circuit board should be mounted comes to the predetermined position. It is well known that a means for positioning a supplied circuit board is provided, and a component mounting means for mounting an electronic component at a predetermined position of the circuit board positioned while holding the electronic component at the predetermined component take-out position is well known. ing.

Problems to be Solved by the Invention In such an electronic component mounting apparatus, a component supply unit must be replaced when a type of a circuit board is changed so as to be able to cope with mounting various types of electronic components on one circuit board. If a large number of component supply units are installed on the moving table in order to reduce the switching loss time, the driving force of the moving means must be increased in order to increase the size of the moving table. In addition, there is a problem that it is difficult to increase the speed because the inertia increases.

Means for Solving the Problems In order to solve the above problems, the present invention provides a component supply unit in which a plurality of component supply units for sequentially sending a plurality of stored components to a predetermined component removal position are installed in parallel, In a component mounting apparatus comprising: mounting member positioning means for positioning a mounting member for mounting; and component mounting means for holding a component at a predetermined position from the component supply unit and mounting the component on the mounting member. The component supply unit is a first component movable in a direction parallel to the component supply unit.
A moving table and a first driving table for driving the first moving table
A moving table drive unit, mounted on the first moving table, and installing a plurality of the component supply units in parallel;
It is characterized by comprising a second moving table movable in the parallel direction and a second moving table driving section for driving the second moving table.

According to the present invention, the component supply unit has the first movable table movable in the parallel direction and the second movable table movable in the parallel direction on the first movable table. Can be achieved. In addition, the positioning accuracy can be improved by coarsely moving one of the moving tables and finely moving the other moving table to form a position feedback loop.

Embodiment An embodiment of the present invention will be described below with reference to FIG.

In FIG. 2, reference numeral 1 denotes a component supply unit in which a number of component supply units 2 are arranged in parallel, and is configured to be able to position an arbitrary component supply unit 2 at a predetermined component supply position 1a as described in detail later. Have been. The component supply unit 2 is mounted with a tape-shaped component assembly that holds a large number of components in a row, and is configured so that the components can be sequentially sent to a component take-out position 2a provided at one end.

Reference numeral 3 denotes a revolving type component mounting unit, in which a plurality of mounting heads 5 are arranged at equal intervals on a rotary table 4 that can rotate intermittently around a fixed axis. The rotary table 4 rotates intermittently at intervals of the placement of the mounting heads 5, and the stop position of the mounting head 5 is set at the component supply position 1a and the component mounting position 3a. The mounting head 5 is provided with a suction nozzle (not shown) that can move up and down, moves down at the component supply position 1a to suction the component, then rises, and moves down at the component mounting position 3a to suction the component. It is configured to rise after the component is mounted by releasing.

Reference numeral 6 denotes a positioning unit for positioning the circuit board 10 on which components are to be mounted. The fixing means 7 for fixing and supporting the circuit board 10 supplied by supply means (not shown) at a predetermined position is provided on an X table 8 movable in the X direction. The X table 8 is installed on a Y table 9 which is movable in the Y direction, and an arbitrary position of the circuit board 10 fixed and supported is moved to the component mounting position 3a.
It is configured so as to be able to be positioned.

Next, the configuration of the component supply unit 1 will be described in detail. A plurality of the component supply units 2 are installed in parallel on the second moving table 11a. The second moving table 11a is movably supported along a linear drive motor 12 extending in the direction parallel to the component supply unit 2, and is mounted on the first moving table 11b. The first moving table 11b is supported movably along a guide frame 13 extending in the parallel direction of the component supply unit 2. A ball screw shaft 14 is provided on one side of the guide frame 13.
Is provided, and the nut portion is fixed to the first moving table 11b. One end of the ball screw shaft 14 is
Attached to the output shaft. Here guide frame 13
The length of the linear drive motor and the length of the ball screw shaft should be at least twice the length of the second moving table 11a at least twice the length of the second moving table 11a. Takes the length of

Next, the operation will be described. First, a plurality of component supply units 2 containing various components to be mounted on the circuit board 10 are installed on the second moving table 11a. The supply means supplies the circuit board 10 to the fixing means 7 of the positioning unit 6 to fix and support the circuit board 10 at a predetermined position.

From this state, the moving tables 11a and 11b respectively move, and the component supply units 2 accommodating the components to be mounted are sequentially positioned corresponding to the component supply positions 1a based on a preset component mounting order. At this time, the moving distance and the moving speed of each moving table are determined so that the positioning time is the shortest.

The components located at the component supply position 1a are sequentially held by the mounting head 5 of the component mounting unit 3 and then moved to the component mounting position 3a by rotating the rotary table 4. On the other hand, the positioning unit 6
10 is moved in the X and Y directions, the positions at which the components are to be mounted are sequentially positioned at the component mounting position 3a in accordance with the preset mounting sequence of the components, and the components held by the mounting head 5 are moved to the circuit. They are sequentially mounted at predetermined positions on the substrate 10.

The means for moving the moving tables 11a and 11b is not limited to the linear drive motor 12, the combination of the ball screw shaft 14 and the nut, and may be a rack and a pinion. Further, in the above embodiment, an example is shown in which the pivotable component mounting unit 3 is used, and the circuit board 10 is moved in the X and Y directions so that the position where components are to be mounted matches the fixed component mounting position 3a. However, the circuit board 10 may be fixedly installed or moved only in one direction, and the mounting head 5 may be moved to an arbitrary position where the components of the circuit board 10 are to be mounted. Needless to say, the effect is obtained.

Further, it goes without saying that the number of moving tables may be plural.

Effects of the Invention According to the present invention, the component supply unit has a movable table movable in a parallel direction, and a movable table movable in a parallel direction on the movable table, and the positioning time of the component supply unit is the shortest. Thus, the speed can be increased by determining the moving speed and the moving distance.

Further, by making the movement of one of the moving tables a fine operation and forming a position feedback loop, it is possible to obtain effects such as improvement of positioning accuracy.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of an electronic component mounting apparatus according to an embodiment of the present invention, and FIG. 2 is a plan view of the whole of the present invention. DESCRIPTION OF SYMBOLS 1 ... Component supply part, 1a ... Component supply position, 2 ... Component supply unit, 3 ... Component mounting unit, 4 ... Rotary table, 5 ... Mounting head, 6 ... Positioning unit, 7
... Positioning unit fixing means, 8,9 ... XY table unit, 10 ... Circuit board, 11a ... Second moving table, 11b ... First moving table, 12a ... Linear drive motor, 13 ... Guide frame, 14 …… Ball screw shaft, 15…
... Drive motor.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeshi Okada 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A-60-150700 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H05K 13/02

Claims (3)

(57) [Claims] 1. A component supply unit in which a plurality of component supply units for sequentially sending a plurality of stored components to a predetermined component removal position are installed in parallel, and a mounting member positioning means for positioning a mounting member on which the components are mounted. And a component mounting means for holding a component at a predetermined position from the component supply unit and mounting the component on the mounting member, wherein the component supply unit is arranged in a direction parallel to the component supply unit. A first moving table, a first moving table driving section for driving the first moving table, and a plurality of the component supply units mounted on the first moving table and arranged in parallel, An electronic component mounting apparatus, comprising: a second moving table movable in a direction; and a second moving table driving unit that drives the second moving table. 2. The electronic component mounting apparatus according to claim 1, wherein said first moving table driving section is constituted by a ball screw and a nut, and said second moving table driving section is constituted by a linear driving motor. . 3. The electronic component mounting apparatus according to claim 1, wherein said first moving table drive section comprises a rack and a pinion, and said second moving table drive section comprises a linear drive motor. .