JP4312932B2 - Parts holding device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a component mounting apparatus for mounting various mounting components on a substrate, and in particular, holds mounting components such as FPC (flexible printed circuit), COF (chip on film), and TCP (tape carrier package). The present invention relates to a component holding device for performing positioning and conveyance.
[0002]
[Prior art]
In a component mounting apparatus, generally, a mounted component is supplied in a state of being mounted on a stage which is a component holding device, and after its orientation and position are positioned with respect to a substrate to be mounted, a thermocompression bonding apparatus or the like Is mounted on the substrate.
[0003]
Here, the mounting component positioning method with respect to the board is as follows: (1) The amount of positional deviation between the mounting component on the stage and the board to be mounted is recognized by a recognition mechanism such as a camera, and mounting is performed based on the amount of positional deviation. In addition to the method of moving the stage itself on which the component is placed, (2) a method of displacing the mounted component sucked and held on the stage by a gauging mechanism or the like while maintaining the sucked state is known.
[0004]
[Problems to be solved by the invention]
However, among the conventional positioning methods described above, the method (1) has a problem that a device such as a recognition mechanism is newly required for positioning the mounted component, and the device configuration is complicated.
[0005]
Of the conventional positioning methods described above, in the method (2) above, the mounted components such as FPC, COF, and TCP are all flexible and weak components. If so, there is a problem that the mounted component itself is bent, and the mounted component cannot be positioned accurately.
[0006]
The present invention has been made in view of the above points, and an object thereof is to provide a component holding device capable of easily and accurately positioning a mounted component.
[0007]
[Means for Solving the Problems]
The present invention has as its first aspect, a holder for holding the mounted components, the posture correction mechanism for correcting the orientation by pressing a portion of said mounting component held by the holding member, the The holding body is provided with a suction holding mechanism for sucking and holding the mounting component so that the mounting component pressed by the attitude correction mechanism is displaced relative to the holding body. Is a component holding device which is operated after the posture of the mounted component is corrected by the posture correction mechanism, and is provided with a small suction hole for fixing the mounted component to the holding body. I will provide a.
[0008]
In the first solving means described above, the suction holding mechanism includes an suction body that sucks the mounting component and a support body that supports the suction body movably with respect to the holding body, and the suction body. Preferably, when the mounting component is pressed by the posture correction mechanism, the support body slides or rotates together with the mounting component . In addition, a plurality of the suction holding mechanisms are provided, and each suction holding mechanism is arranged in alignment with the holding body, and is connected to a vacuum system via the suction point switching mechanism, and is sucked by the suction point switching mechanism. It is preferable to switch the suction location by the suction holding mechanism in accordance with the dimensions of the mounted component by switching the system and operating only the arbitrary suction holding mechanism .
[0009]
As a second solution, the present invention includes a holding body that holds a mounting component, and a posture correction mechanism that presses a part of the mounting component held by the holding body to correct its posture. The component holding apparatus is characterized in that the holding body is provided with a suction holding mechanism for sucking and holding the mounted component with a plurality of stages of suction force.
[0010]
According to the first solving means of the present invention, the mounting component pressed by the attitude correction mechanism is displaced relative to the holding body by the suction holding mechanism, so that the mounting component is flexible such as FPC, COF, TCP, etc. Even a weak component can effectively prevent the mounted component from bending, and therefore, the mounted component can be accurately positioned without using a complicated configuration such as a recognition mechanism.
[0011]
According to the second solution of the present invention, since the suction holding mechanism can hold the mounted component with a plurality of stages of suction force, the posture correction mechanism presses the mounted component to correct its posture. The adsorption force can be switched between when the mounting component is finally fixed by the holding body. For this reason, the mounting component is flexible such as FPC, COF, TCP, etc., as in the first solution described above. Even a weak component can effectively prevent the mounted component from bending when correcting its posture.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings. 1 to 3 are diagrams for explaining an embodiment of a component holding device according to the present invention.
[0013]
As shown in FIG. 1, the component holding device 1 corrects the posture by pressing a stage (holding body) 2 that holds the mounting component 4 and a part of the mounting component 4 held on the stage 2. An attitude correction mechanism 3 is provided.
[0014]
Among these, the mounting component 4 is mounted on the stage 2 such that the plurality of suction holes 7 for sucking and holding the mounting component 4 and the mounting component 4 pressed by the attitude correction mechanism 3 are displaced relative to the stage 2. And a plurality of movable suction holding mechanisms (suction holding mechanisms) 10 for holding the suction.
[0015]
In addition, the posture correction mechanism 3 includes an abutting portion 3a located on the front end portion 2a side of the stage 2, and the abutting portion 3a with respect to the front end portion 2a of the stage 2 in the front-rear direction (X direction in FIG. And a drive unit 3b that moves in the Y direction (FIG. 1).
[0016]
FIG. 2 is a sectional view taken along line II-II of the component holding device 1 shown in FIG.
[0017]
As shown in FIG. 2, the movable suction holding mechanism 10 provided on the stage 2 includes a suction pad (suction body) 10 a that sucks the mounting component 4, and a support that supports the suction pad 10 a movably with respect to the stage 2. And a body 10b.
[0018]
The small suction holes 7 and the movable suction holding mechanism 10 are arranged in the left-right direction (Y direction in FIG. 1) on the tip 2a side of the stage 2. Further, the small suction holes 7 and the movable suction holding mechanism 10 are both connected to the vacuum system 9 via an adsorption system switching mechanism (adsorption location switching mechanism) 8, and the adsorption system is switched by the adsorption system switching mechanism 8. By operating only the arbitrary suction small holes 7 and the movable suction holding mechanism 10, it is possible to switch the suction location by the suction small holes 7 and the movable suction holding mechanism 10 in accordance with the dimensions of the mounted component. Yes.
[0019]
Next, the operation of the present embodiment having such a configuration will be described.
[0020]
First, the mounting component 4 is placed on the stage 2.
[0021]
Next, the vacuum system 9 is activated and the suction system switching mechanism 8 operates only the movable suction holding mechanism 10 corresponding to the length in the width direction of the mounted component 4, and the suction pads of these movable suction holding mechanisms 10. The lower surface of the mounting component 4 is sucked by 10a.
[0022]
In this state, the driving portion 3b of the posture correction mechanism 3 is driven, and the abutting portion 3a is pulled by a predetermined amount of stroke (see reference numeral B in FIG. The mounting component 4 is displaced by a predetermined amount of stroke (see symbol A in FIG. 1) to force the mounting component 4 and the posture of the mounting component 4 is corrected. At this time, the suction pad 10a of the movable suction holding mechanism 10 is slid (see reference C in FIG. 2) and rotated (see reference C in FIG. 2) together with the mounting component 4 by pressing the abutting portion 3a of the posture correction mechanism 3. D).
[0023]
After the orientation of the mounting component 4 is corrected in this way, the suction small hole 7 corresponding to the length in the width direction of the mounting component 4 is further operated by the suction system switching mechanism 8, and the mounting component is mounted on the stage 2. 4 is finally fixed.
[0024]
When the mounting components 5 and 6 having a smaller width than the mounting component 4 are placed on the stage 2 instead of the mounting component 4, the suction system switching mechanism 8 causes the width of the mounting components 5 and 6. Only the movable suction holding mechanism 10 and the suction small hole 7 corresponding to the length in the direction are operated.
[0025]
As described above, according to the present embodiment, the mounting component 4 pressed by the attitude correction mechanism 3 is displaced relative to the stage 2 by the movable suction holding mechanism 10, so that the mounting component 4 is FPC, COF, TCP Even if it is a flexible and weak component such as a component, it is possible to effectively prevent the mounting component 4 from being bent. Therefore, the mounting component 4 can be accurately detected without using a complicated configuration such as a recognition mechanism. Can be positioned.
[0026]
Further, according to the present embodiment, the suction system switching mechanism 8 switches the operating states of the suction small holes 7 and the movable suction holding mechanism 10 according to the lengths of the mounting components 4, 5, 6 in the width direction. Therefore, it is possible to always hold the mounting components 4, 5, 6 from one end to the other with respect to a plurality of mounting components 4, 5, 6 having different sizes. Positioning can be performed stably.
[0027]
In the above-described embodiment, the posture of the mounting components 4, 5, and 6 placed on the stage 2 is corrected in only one direction in the front-rear direction (X direction in FIG. 1) by the posture correction mechanism 3. is doing. However, when correction is required also in the left-right direction (Y direction in FIG. 1), the above-described method is also applied in the left-right direction, or as shown in FIG. 3, the recognition mechanism 11 such as a camera is used in the left-right direction. A method of recognizing the recognition marks on the mounted components 4, 5, 6 and moving the stage 2 in the left-right direction based on the recognition result may be adopted.
[0028]
In the above-described embodiment, the stage 2 is used as the holding body. However, the present invention is not limited to this, and an arm that holds the mounting component 4 in a suspended state may be used. The stage 2 is not necessarily required to hold the mounting component 4 in a horizontal state, and can be similarly applied to the case where the mounting component 4 is held in an inclined state.
[0029]
Furthermore, in the above-described embodiment, the movable suction holding mechanism 10 is provided together with the suction small holes 7, but not limited to this, as shown in FIG. It is also possible to provide only an adsorption small hole (adsorption holding mechanism) 7 and switch the adsorption force by the adsorption small hole 7 by an adsorption force switching mechanism 8 ′ provided in the adsorption system switching mechanism 8. Thereby, the suction force can be switched between when the mounting component 4 is pressed by the posture correction mechanism 3 to correct its posture and when the mounting component 4 is finally fixed on the stage 2. When the suction force when correcting the posture 4 is set to a suction force that allows the mounting portion 4 sucked in the suction small hole 7 to move relative to the suction hole 7, Similarly to the embodiment, even if the mounting component 4 is a flexible and weak component such as FPC, COF, or TCP, it is possible to effectively prevent the mounting component 4 from being bent when correcting its posture.
[0030]
【The invention's effect】
As described above, according to the present invention, it is possible to easily and accurately position the mounted component.
[Brief description of the drawings]
FIG. 1 is a diagram showing an embodiment of a component holding device according to the present invention.
2 is a cross-sectional view taken along the line II-II of the component holding device shown in FIG.
FIG. 3 is a view showing a modification of the component holding device shown in FIG. 1;
FIG. 4 is a diagram showing another embodiment of the component holding device according to the present invention.
1 Component holding device 2 Stage (holding body)
2a Tip 3 Attitude correction mechanism 3a Abutting part 3b Drive parts 4, 5, 6 Mounting component 4a Tip 7 Suction small hole 8 Suction system switching mechanism (Suction location switching mechanism)
8 'suction force switching mechanism 9 vacuum system 10 movable suction holding mechanism (suction holding mechanism)
10a Suction pad 10b Support body 11 Recognition mechanism

Claims (3)

A holding body for holding the mounted component;
And a posture correction mechanism for correcting the posture to press the portion of retained the mounting part by the retaining member,
The holding body is provided with a suction holding mechanism that sucks and holds the mounting component so that the mounting component pressed by the posture correction mechanism is displaced relative to the holding body,
The holding body is provided with a small suction hole that is operated after the posture of the mounting component is corrected by the posture correction mechanism and fixes the mounting component to the holding body. Parts holding device. The adsorption holding mechanism has an adsorption body that adsorbs the mounting component, and a support body that movably supports the adsorption body with respect to the holding body ,
2. The component according to claim 1 , wherein when the mounting component is pressed by the posture correction mechanism, the adsorbent slides or rotates together with the mounting component by sliding the support. 3. Holding device. A plurality of the suction holding mechanisms are provided,
Each suction holding mechanism is arranged in alignment with the holding body, and connected to a vacuum system via a suction point switching mechanism,
2. The component according to claim 1 , wherein the suction location by the suction holding mechanism is switched according to the dimensions of the mounted component by switching the suction system by the suction location switching mechanism and operating only an arbitrary suction holding mechanism. Holding device.

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