JPH01107600A - Part mounting apparatus - Google Patents

Abstract

PURPOSE:To make sucking nozzles compact and to constitute a mounting head as a compact shape, by arranging a rotary body in a cam cylinder having a groove cam in a surrounding wall so that the rotary body can be rotated, and arranging a plurality of kinds of sucking nozzles around the rotary axis of the rotary body so that the nozzles can be extended and retreated in the axial direction. CONSTITUTION:When a rotary body 22 is rotated, each sucking nozzle 25 is rotated. Its engaging member is engaged with a groove cam 33 of a cam cylinder 20. Therefore, each sucking nozzle 25 is sequentially extended and retreated in correspondence with the shape of the groove cam 33. Only the desired nozzle 25 is extended in correspondence with the rotating position of the rotary body 22. The other sucking nozzle can be made to be the retreated state. When a part is sucked and mounted, the cam cylinder 20 is lifted and lowered together with the rotary body 22 housing the sucking nozzles 25. It is not necessary to lift and lower each sucking nozzle. Therefore, the sucking nozzle can be made compact. As a result, a mounting head 10 having a plurality of kinds of the sucking nozzles can be constituted as a compact shape.

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention is a method for suctioning and transferring various parts such as electronic parts.
The present invention relates to a component mounting device that is mounted on an object to be mounted such as an 8-board.

Conventional technology For example, as a VT mounting device for electronic components, an electronic component is sucked by a suction nozzle at a component 0 (feeding position), and after being transferred to a mounting position on a circuit board, the suction is released and the electronic component is placed on the board. Devices that are designed to be worn are already known.

Further, as disclosed in Japanese Patent Application Laid-Open No. 113699/1984, a mounting head is rotatably disposed on a moving body that moves to pass between a component supply position and a component mounting position, and this mounting head A structure in which multiple types of suction nozzles are arranged around the rotation axis of the component, and a rotating means is provided to rotate the rad to attach the desired type of suction nozzle to the mounting of n parts. It is also known that when the number of parts changes, it can be handled simply by rotating the mounting spatula V, and multiple types of parts can be mounted efficiently using a single part-one-placement device. .

However, when each mounting head is provided with multiple types of suction nozzles as described above so that they can be easily switched,
Since multiple suction nozzles always protrude from each placement head, it is necessary to configure the placement head and suction nozzle in such a way that the selected suction nozzle can be pressed to further protrude when picking up and installing parts. There is a problem that the mounting head becomes large, and there is also another problem that the suction nozzle that is not suctioning a component becomes an obstacle for a component recognition device, a component suction position correction device, and the like.

Furthermore, there is a problem in that it is not possible to rotate the component around the axis of the suction nozzle to adjust the rotational posture when the component is attached. In addition, it is necessary to provide a mechanism for supporting each suction nozzle so that it can be fixed at an arbitrary rotational position, which results in a further increase in the size of the mounting head.

The present invention solves the above-mentioned conventional problems, and as a first invention,
To provide a component mounting device which has a plurality of types of suction nozzles while having a compact configuration and can project only a selected @-depositing nozzle and keep the other suction nozzles in a retracted state.

or,! @2 The object of the present invention is to provide a component mounting device that has a compact configuration and can adjust the mounting posture of a component by rotating a mounting nozzle.

Means for Solving the Problems In order to achieve the above object, the first aspect of the present invention is to suck a component with a suction nozzle at a component supply position, move the suction nozzle to a component mounting position, and then release the suction. In a component mounting device, a rotating body is rotatably disposed within a cam cylinder having a grooved cam on the peripheral wall, and a rotating body protrudes and retracts in the axial direction around the rotation axis of the rotating body. Multiple f! The present invention is characterized in that a suction nozzle is provided, an engaging member that engages with the grooved cam is attached to each suction nozzle, and a means for rotating the soft body is provided.

Further, the second invention of the present invention provides a rotatable rotating shaft, and a cam cylinder having a grooved cam on the peripheral wall and having a rotary body rotatably disposed therein, is attached to the rotating shaft. A plurality of types of suction nozzles are arranged on a pinch circle passing through the axis of the rotation shaft around the rotation axis of the rotary body, and the rotation The present invention is characterized in that a shaft rotation drive means and a rotation body rotation drive means are provided.

Operation Since the present invention has the above configuration, according to the first invention, when the rotating body is rotated by the rotation means, each @ arrival /, ? The suction nozzle rotates and its engaging member engages the grooved cam of the cam cylinder, so each suction nozzle moves in and out sequentially according to the shape of the grooved cam, causing the rotation of the rotating body. Depending on the position, only a desired suction nozzle can be made to protrude and other suction nozzles can be retracted. Therefore, the adsorption of parts and v*y
At the time of a, the cam cylinder body can be raised and lowered together with the rotary body containing the attachment nozzle, and there is no need to raise and lower each suction nozzle individually, so the suction nozzle can be made smaller, and as a result, multiple types of suction nozzles can be used. The mounting head can be configured compactly.

Further, according to the second invention, in addition to the first invention, by rotating the rotation axis, the suction nozzles on the same axis can be rotated, and the mounting position of the mounting part can be adjusted by rotating the mounting part. can.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 5.

First, the overall configuration of the component mounting device will be explained with reference to FIG. 5. 1 is a support substrate, and an intermittent rotation drive device r! i2 is installed, and its rotating main shaft 3 extends downward through the support substrate 1. 4 is a rotating main shaft 3 on the lower surface of the support substrate 1.
The lower part of the rotating main shaft 3 is rotatably supported by a bearing 4a disposed at the lower end of the supporting cylinder fixed so as to surround the main shaft.

A rotating frame 5 is fixed to the lower end of the main circulation wheel 3, and a plurality of mounting rods 10 are moved up and down on the outer periphery of the rotating frame 5 at an angular pitch corresponding to the index rotation angle of the intermittent rotation drive device 2. possible.

Reference numeral 11 denotes a pair of guide rods that protrude upward from each mounting head 10, and are supported by the eaves frame 5 so as to be movable up and down. Further, a cam 7 lower 7 that is engaged with a lifting groove cam 6 formed on the outer peripheral surface of the support cylinder 4 is attached to the upper end of the hydro-rad 11.

At each stop position of each of the mounting heads 10 caused by the intermittent rotation of the rotating frame 5, stages such as a component supply station 8 and a component mounting station 9 are appropriately arranged.

Thus, as the rotary frame 5 is intermittently rotated by the intermittent recirculation drive device fi2, the mounting head 10 sequentially moves through each stage 1, and the mounting head 10 is positioned at a height corresponding to each station. Although not shown, the component supply station 8 and the component mounting stage 19 are configured so that the mounting head 10 is lowered by a predetermined stroke in order to attract and mount components.

Next, the configuration of the mounting head 10 will be explained with reference to FIGS. 1 to 4. Reference numeral 12 denotes a support block to which the lower end of the guide rod 11 is fixed, and rotatably supports the rotary shaft 15 via a pair of bearings 13a and 131+. 14 is a spacer interposed between the bearings 13a113b. Further, a gear 1G is fixed to the upper part of the rotation Ik shaft 15, and is configured to be able to be driven at a suitable station by a drive pinion 42 which is rotationally driven by a drive motor 41. 17 is a spacer interposed between the bearing 13b and the gear 16.

Reference numeral 18 denotes a locking piece that fixes the tooth $IG at an arbitrary position, and as shown in FIG. It has a locking part 18a that is

A cam cylinder body 20 having a cylindrical hole 21 formed eccentrically with respect to the axis of the rotary shaft 15 is fixed to the lower end of the rotary shaft 15. 1
A rotary body 22 is provided which is freely supported by a pongee 23 fixed to the lower surface of the rotor 5. This rotating body 22 has a plurality of through holes 24 on a pitch circle through which the axis of the rotating shaft 15 passes.
are formed, and different types of suction nozzles 25 are accommodated in each through hole 24.

A gear 26 is formed on the outer periphery of the upper end of the rotating body 22,
At a suitable station, a drive pinion 44 which is rotationally driven by a drive motor 43 is configured to be able to be driven by oral transmission. Reference numeral 27 denotes a locking lever for locking the rotating body 22 in a state where the desired suction nozzle 25 is located at the axial center position of the rotating shaft 15. As shown in FIG. and the other part i and the cam cylinder body 2.
0 and the rack part 2 in the middle part.
7a toward the tooth Ill 2 G, and further the rack part 27a is separated from the tooth Ill2G by the release pin 30.

Each of the suction nozzles 25 is provided with an engaging pin 31 projecting radially outward from the outer peripheral surface of the rotating body 22, and the rotating body 22 has a slit 32 through which the engaging pin 31 passes.
is formed in the axial direction of the rotating body 22, and the tip of the engagement pin 31 of the bracket is formed in the cam cylinder body 20.
3 is engaged. Thus, as the rotating body 22 rotates, the grooved cam 33 causes the suction 25 to move into the through hole 24.
protruding or retracting. As shown in FIG. 4, this grooved cam 33 is formed so that when the suction nozzle 25 is located at the axial center position of the rotating cucumber 15, it is in the lowered position, and when it is in the position of the pond, it is in the raised position. The suction nozzle 25 is configured to protrude at the axial center position of the rotating cucumber 15 and retract at other positions.

In addition, a vertical groove 34 is continuously formed in the grooved cam 33 so that the engaging bottle 31 can be moved when the suction nozzle 25 is moved to the axial center position of the rotating shaft 15. 31
The distal end portion of the slider 35 is arranged to be movable up and down within the cam cylinder body 20 and is configured to engage with the lower end portion of a slider 35 that is biased downward by a spring 36.

In the above N# case, when the mounting head 10 stops at the stage 1 where the drive pinion 44 is arranged, the release pin 30 is pressed as necessary, and the locking lever 2 of the gear 2G is pressed.
7 is released, and the drive motor 43 is driven to rotate. Then, the drive pinion 44 and gear 2G
The rotating body 22 rotates through the
Multiple types of suckers stored in each through hole 24;
4/ When the screw 25 is successively positioned at the axial center position of the rotating shaft 15, it protrudes downward. When the desired suction nozzle 25 protrudes, the rotation of the drive motor 44 is stopped, the pressure on the release bottle 30 is released, and the rotating body 22 is stopped.

In this state, the rotating frame 5 is intermittently rotated and the mounting head 1 is again rotated.
0 moves and reaches the component supply stage 1 8, the idle rod 11 is pushed down by a predetermined amount. At this time,
When the tip of the suction nozzle 25 comes into contact with the component, the suction nozzle 25 lifts the slider 35 against the spring 3G and removes it.The tip of the suction nozzle 25 is pressed against the component by the repulsive force, and the component is securely removed. It is adsorbed.

The mounting rod 10 that has attracted the parts is moved again by the intermittent rotation of the rotating frame 5. When the mounting head 10 stops at the stage 1 in front of the component mounting stage 1 9 where the drive pinion 42 is arranged, the lock piece 18 is pressed as necessary to release the gear 16 and the drive pinion 42 is disposed. The motor 41 is rotationally driven, and the drive pinion 42 and gear 16
The rotating shaft 15 rotates through the cam cylinder body 20 and the rotary body 22, and the suction nozzle 25 protruding through the rotary body 22 rotates around its axis, adjusting the rotational posture of the suctioned component. When it assumes the desired rotational posture, the rotation of the drive motor 41 is stopped, the suppression of the lock piece 18 is released, and the rotating shaft 15 is stopped.

Thereafter, by intermittent rotation of the rotating frame 5, the rad 1 is attached to the mounting plate.
0 moves to the component mounting stage 3-9, the idle rod 11 is pushed down and rubbed by a predetermined amount, the component is pressed against the surface to be mounted such as a circuit board, and the suction is released to mount the component.

Each of the mounting heads 10 installed on the rotating frame 5 repeats the above operation (by doing so, the parts are sequentially picked up at the parts supply station 8 using the optimum type of suction nozzle 25, and the rotational position of each part is This part can be mounted on the part mounting stage 3-9, which has been adjusted.

In the above embodiment, an example was shown in which the trial pongee 15 was provided in order to be able to adjust the rotational attitude of the parts, but it can be omitted if adjustment of the rotational attitude of the parts is not necessary.

Further, although an example has been shown in which the entire mounting head 10 is moved downward by a predetermined amount when picking up or mounting a component, the cam cylinder 20 or the rotating shaft 15 may be mounted on the support block 12 so as to be able to be operated downward.

Further, in the above embodiment, the rotating body 22 is rotatably supported by the support 23, but the outer peripheral surface of the rotating body 22 may be rotatably supported by rollers or the like. Further, in the above embodiment, the suction nozzle 25
Only when is located at the axial center position of the rotating shaft 15 and protrudes,
Although an example has been shown in which the suction nozzles can be retracted against the spring 36, a spring may be arranged in each through hole 24 to urge all the suction nozzles to protrude and retract.

Furthermore, although the above embodiment shows an example in which the mounting rod 10 is installed in the rotating frame 5 that rotates intermittently, it can also be applied to a component mounting device in which the mounting rod 10 moves along an arbitrary path such as a linear reciprocating movement. It goes without saying that it can be applied.

- Effects of the Invention According to the component mounting device of the first aspect of the present invention, when the rotary body containing the suction nozzles is rotated by the rotation drive means, each suction nozzle moves in and out sequentially by the grooved cam of the cam cylinder. Therefore, depending on the rotational position of the rotating body, only the desired suction nozzle can be made to protrude while the other suction nozzles can be retracted, making it possible to easily switch to the most suitable one from among multiple types of suction nozzles. can. Moreover, since only a single suction nozzle always protrudes at the same position, the movement space for the suction nozzle is small, and even if peripheral devices such as component recognition are placed close together, they will not interfere with the suction nozzle. The layout design of each device becomes easy and can be configured compactly. In addition, when picking up and mounting parts, the cam cylinder body can be raised and lowered together with the rotating body (since there is no need to shake each suction nozzle, the suction nozzle can be made smaller, and as a result, it is possible to have multiple Mi-necked suction nozzles. The mounting head can be configured compactly.

Further, according to the S crystal mounting device of the second invention of the present invention, fjS
With a simple configuration in which a rotation axis is added to the first invention, the rotational posture of the parts adsorbed by the @ deposition nozzle can be changed by rotating the rotation axis, and the oral posture of the component can be adjusted to perform VC deposition. There is an effect.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and Fig. 1 is a longitudinal sectional front view of the mounting head, Fig. 2 is a cross-sectional plan view of Fig. 1, and
Fig. 3 is a plan view taken along the arrow ■-■ in Fig. 1, Fig. 4 is a developed view of the grooved cam of the cam cylinder, and Fig. 5 is a longitudinal sectional front view showing the overall schematic configuration of the component mounting device. . 5...Rotary frame 8...8 parts supply input thread...
・・・・・・Parts installation station run 10・・・・・・
...Mounting head 15...Rotating shaft 1G...Gear 20...Cam cylinder body 22... Rotating body 25...Suction'X1 nozzle 26...
...Gear 3 work......Engagement pin 33...Groove cam 42...W! A! IIIJ pinion 44
・・・・・・・・・Drive pinion. Agent 9 Kage Patent Attorney Toshio Nakao 1 person 1st figure Moe-゛, 1st person Rikigen 2^n

Claims (2)

[Claims] (1) A component mounting device that sucks a component with a suction nozzle at a component supply position, moves the suction nozzle to a component mounting position, releases the suction, and mounts the component, and has a grooved cam on the peripheral wall. A rotary body is rotatably disposed within the cam cylinder, and a plurality of types of suction nozzles are disposed around the rotation axis of the rotary body so as to be able to protrude and retract in the axial direction, and each suction nozzle is provided with the grooved cam. 1. A component mounting device, comprising: an engaging member that engages with the rotating member; and a means for rotationally driving the rotating body. (2) In a component mounting device that sucks a component with a suction nozzle at a component supply position, moves the suction nozzle to a component mounting position, releases the suction, and mounts the component. a cam cylinder body having a grooved cam on the peripheral wall and having a rotating body rotatably disposed therein, on the rotating shaft;
The axis of the rotating body is installed eccentrically with respect to the axis of the rotating shaft, and multiple types of suction nozzles are installed on a pitch circle passing through the axis of the rotating shaft around the axis of rotation of the rotating body. The suction nozzle is arranged so as to be able to protrude and retract in the direction, an engaging member that engages with the grooved cam is attached to each suction nozzle, and a rotational drive means for the rotating shaft and a rotational drive means for the rotary body are provided. Parts mounting device.