JPH0793519B2 - Electronic component mounting device - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component mounting apparatus used when an electronic component is adsorbed and mounted on a circuit board.

2. Description of the Related Art Conventionally, as an electronic component mounting apparatus for mounting electronic components on a circuit board, a plurality of component supply units containing a large number of electronic components are arranged in parallel and installed on a moving table, and the moving table is mounted on the moving unit. By making it movable in the parallel direction, it is possible to take out an electronic component housed in an arbitrary component supply unit at a predetermined position, and on the other hand, a position where the electronic component of the circuit board is to be mounted comes to a predetermined position. , A means for positioning the supplied circuit board is provided, the electronic component holding means holds the electronic component at the predetermined component take-out position, and the component is joined to a rotating means for rotating at an appropriate mounting angle and rotated, It is well known that an electronic component mounting means for mounting the electronic component on the mounting member is provided.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In such an electronic component mounting apparatus, when the nozzle rod 3 is joined to the rotating rod 1 shown in FIG. 5 and rotates at an appropriate mounting angle, as shown in FIG. An impact force applied when the rod 1 is joined to the nozzle rod 3 is applied to the component 10 through the nozzle rod 3 and the nozzle 9, and a positional deviation occurs between the nozzle 9 and the component 10.

This positional deviation becomes a mounting positional deviation when the component 10 is mounted on the printed circuit board, and causes a board defect. Further, the impact force generated when the rotating rod 1 and the nozzle rod 3 are joined is increased with the speeding up of the component mounting tact, and the component mounting accuracy is deteriorated. Therefore, there is a problem that the speeding up becomes difficult.

Means for Solving the Problem A plurality of component supply units that sequentially deliver a plurality of accommodated components to a predetermined component extraction position are mounted in parallel on a movable table that is movable in the parallel direction, and the components are mounted. A mounting member positioning means for positioning the mounting member, a holding means for picking up and holding the component at a predetermined position of the component supply section, and mounting the mounting member on the mounting member, and a component held by the holding means are appropriate. In a component mounting apparatus provided with a rotating means that rotates at various mounting angles, the holding means is joined to the rotating means, and a first nozzle rod that is movable in the axial direction by joining the holding means, and the first nozzle rod. To the first means by being joined to the rotating means.
Provided independently of the axial movement of the nozzle rod,
It has a second nozzle rod for holding a component, a means for restricting the first nozzle rod and the second nozzle rod in the rotation direction, and a means for preventing the rotation of the first nozzle rod or the second nozzle rod. It is characterized by

Effect According to the present invention, by having the first nozzle rod which is joined to the component θ rotating means and is movable in the vertical direction and the second nozzle rod which holds the component, the component θ rotating means and the first nozzle rod are Since the first nozzle rod and the second nozzle rod are free to move in the vertical direction, the impact force applied when joining is not applied to the second nozzle rod or the nozzle. Therefore, the positional deviation due to the impact force does not occur between the nozzle and the component, and the mounting accuracy is improved.

Embodiment An embodiment of the present invention will be described below with reference to FIGS. 1 to 4.

In FIGS. 3 and 4, 16 is a large number of component supply units
A component supply unit in which 17 are arranged in parallel is configured so that an arbitrary component supply unit 17 can be positioned at a predetermined component supply position 18. A tape-shaped component assembly holding a large number of components in a line is mounted on the component supply unit 17, and the components can be sequentially delivered to a component extraction position 18 provided at one end.

Reference numeral 15 is a swivel type component mounting unit in which a plurality of mounting heads 11 are arranged at equal intervals on a rotary table 15a which can be intermittently rotated about a fixed axis. The rotary table 15a rotates intermittently at the arrangement intervals of the mounting heads 11, and the stop positions of the mounting heads 11 are appropriately set to the component supply position 18 and the component mounting position 21. The mounting head 11 is provided with a suction nozzle 9 that can move up and down, descends at a component supply position 18, sucks a component, and then rises, regulates the component position at a component suction position regulating position 19, and rotates the component θ. At the position 20, the component is mounted by rotating and joining the component to a rotating means that rotates at an arbitrary mounting angle as described later in detail, and descending at the component mounting position 21 to release the suction of the component. It is configured so as to rise rearward and return to the original origin angle at the nozzle θ rotation return position 24.

Reference numeral 22 denotes a positioning unit for a circuit board 23 on which components are to be mounted, and fixing means for fixing and supporting the circuit board 23 supplied by a supply means (not shown) at a predetermined position is movable in the X direction.
It is installed on the table 22a and this X table 22a is Y
Is mounted on the Y table 22b which is movable in any direction, and the arbitrary position of the circuit board 23 fixedly supported is set to the component mounting position
It is configured so that it can be positioned at.

Next, the structure of the component θ rotating portion will be described in detail with reference to FIGS. 1 and 2.

In FIG. 1, reference numeral 1 denotes a θ rotation driving rod, which is joined to the first nozzle rod 2 which is movable in the vertical direction by raising the nozzle housing 11. Reference numeral 3 is a second nozzle rod for holding the component, which is joined to the suction nozzle 9 and configured to suck the component 10. Reference numeral 4 is a pin for fixing the first rod and the second rod in the rotational direction so that they can be moved in the vertical direction. Reference numeral 5 is a friction material for preventing the rotation of the second nozzle rod, that is, the rotation of the suction nozzle 9, and is pressed against the bracket 7 fixed to the nozzle housing 11 by the spring 6. Reference numeral 8 is a means for fixing the pin 4 to the rod 3.

In FIG. 2, reference numeral 12 is a motor for driving the θ rotation driving rod 1, which is interlocked with a gear 13. Reference numeral 14 is a means for moving the nozzle 11 up and down.
Is increased so that the θ rotation drive rod 1 and the first nozzle rod 2 are joined.

Next, the operation will be described. First, with the rotary table 15a,
The nozzle housing 11 is positioned at the component θ rotation position 20, and the nozzle elevating means 14 raises the nozzle 11 to join the θ rotation drive rod 1 and the first nozzle rod 2. When the nozzle 11 further rises, the first nozzle rod 2 is joined to the θ rotation driving rod and stops rising, but the nozzle housing 11 and the like rise, so that the rotation preventing friction material 5 and the fixed bracket 7 are disconnected. Be released. Here, the rise of the nozzle is stopped, the motor 12 rotates to the arbitrary component mounting angle, and the gear 13
The .theta. Rotation drive rod 1 is rotated in association with the rotation of the first nozzle rod 2 joined to the rotation drive rod 1, and the second nozzle rod 3 is rotated by the pin 4 which is fixed in the rotation direction. 10 is rotated by θ to an arbitrary mounting angle. Next, when the nozzle 11 is lowered by the nozzle elevating means 14, first, the anti-rotation friction material 5 and the fixing bracket 7 are joined to prevent the rotation of the first nozzle rod 2, that is, the rotation of the suction nozzle 9. Furthermore, the nozzle 11 descends,
The θ rotation drive rod 1 and the first nozzle rod 2 are cut off.

In this embodiment, the pin is used to prevent the rotation of the first nozzle rod and the second nozzle rod, but it can be realized by using a spline key or a slide key between the first and second nozzle rods. Further, in this embodiment, the nozzle moves upward and the component θ
Although the rotary drive rod is fixed, it goes without saying that it can be realized even if the nozzle is fixed and the component θ rotary drive rod moves downward.

EFFECTS OF THE INVENTION According to the present invention, by having the first nozzle rod that is joined to the component θ rotation means and movable in the vertical direction and the second nozzle rod that holds the component, the component θ rotation means and the first nozzle rod are provided. The impact force applied when the nozzle rod joins is
Since the nozzle rod and the second nozzle rod can freely move in the vertical direction, they do not add to the second nozzle rod or the nozzle. Therefore, the positional deviation due to the impact force does not occur between the nozzle and the component, and the mounting accuracy can be improved.

Further, according to the present invention, even if the joining speed of the component θ rotating means and the nozzle rod is increased along with the increase in the mounting tact time, the impact force generated at that time is not transmitted to the component, thereby achieving high speed and high accuracy. It is possible to obtain the effect of being able to achieve

[Brief description of drawings]

1 to 4 show a component mounting apparatus according to an embodiment of the present invention. FIG. 1 is a plan view of a nozzle portion, FIG. 2 is a plan view of a θ rotation driving portion of a nozzle, and FIG. 3 is a component. FIG. 4 is an overall perspective view of the mounting device, FIG. 4 is a schematic plan view of the component mounting device, and FIG. 5 is a plan view of a nozzle portion showing a conventional example. 1 …… Parts θ rotation rod, 2 …… First nozzle rod, 3
...... Second nozzle rod, 4 ... Rotation prevention pin, 5 ... Friction material, 6 ... Spring, 7 ... Fixing bracket, 8 ... Pin fixing means, 9 ... Suction nozzle, 10 ... Parts, 11 ...... Nozzle housing (nozzle unit), 12 ... Motor, 13 ...
… Gears, 14 …… Nozzle raising / lowering means, 15 …… Parts mounting unit, 15a… Rotary table, 16… Parts supply section, 17 ……
Component supply unit, 18 ...... Component take-out position, 19 …… Component position regulating unit, 20 …… Component θ rotation position, 21 …… Component device position, 22 …… Circuit board positioning unit, 23 …… Circuit board, 24… ... θ rotation return position.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kunio Sakurai 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP 61-168298 (JP, A) JP 62-85490 (JP, A)

Claims (1)

[Claims] 1. A component supply unit in which a plurality of component supply units for sequentially delivering a plurality of accommodated components to a predetermined component extraction position are installed in parallel on a movable table movable in the parallel direction, and the component. Mounting member positioning means for positioning the mounting member for mounting the component, holding means for taking out and holding the component at a predetermined position of the component supply part, and mounting it on the mounting member, and the component held by the holding means. In the component mounting apparatus including a rotating means for rotating the first nozzle rod to an appropriate mounting angle, the holding means is joined to the rotating means, and a first nozzle rod that is movable in the axial direction by joining the first nozzle rod and the first nozzle rod. A second nozzle rod that is fitted to the nozzle rod and that is independent of the axial movement of the first nozzle rod due to joining with the rotating means, and that holds a component; Means to the Zururoddo and second nozzle rod can restricted in the rotational direction, the electronic component mounting apparatus characterized by comprising means for preventing rotation of said first nozzle rod or said second nozzle rod.