KR20100040522A - Apparatus and method for mounting component - Google Patents

Abstract

PURPOSE: A component mounting apparatus and a component mounting method are provided to conspicuously reduce mounting time by independently activating an adhesive dispensing head and a transfer head. CONSTITUTION: A plurality of parts are arranged in a component supply part(100). A plurality of jigs are arranged in a component mounting part(500). An adhesive splitter(400) spreads the adhesive on each jig by using the adhesive dispensing head. A component transportation part(200) transfers parts to the component mounting part by using the transfer head. A component adsorption state notification part(300) confirms the absorption state of components during transferring components. A controller(600) controls an adhesive coating process, a component transfer process, a component location coordination process, and a component mounting factory.

Description

Component mounting apparatus and component mounting method {APPARATUS AND METHOD FOR MOUNTING COMPONENT}

The present invention relates to a component mounting apparatus and a component mounting method, and more particularly, to a component transfer head for absorbing a component such as an IR filter and performing a mounting operation, and an adhesive coating agent for applying an adhesive to a jig which is a target of component mounting. It relates to a component mounting apparatus having a head and a component mounting method using the same.

In a general component mounting apparatus used when mounting an electronic component to a jig, a mounting portion for supplying components such as a vibration feeder or a tape feeder is arranged on one side, and a mounting portion in which a plurality of jigs on which the components are to be mounted are arranged on the other side. In the arrangement | positioning state, the vacuum adsorption nozzle for taking out a component, and the adhesive dispensing nozzle for apply | coating an adhesive agent to a jig are arrange | positioned in one head, and the operation | movement of adhesive application and component mounting is performed by this head.

In such a configuration, although the driving of only one head is controlled, it is simple in terms of control, but there is a disadvantage in that the part mounting process takes a long time.

In addition, in the conventional electronic component mounting apparatus, since only the head is movable, the camera had to be mounted on the head when applying a camera for confirming the arrangement of the parts or the arrangement of the jig. Therefore, the size of the head is increased and the weight is increased, which makes driving difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is intended to provide a component mounting apparatus which improves the accuracy of component mounting and reduces work time by subdividing the component mounting operation.

The present invention provides a component supply unit including a plurality of components; A component mounting unit in which a plurality of jigs on which the component is to be mounted are arranged; An adhesive dispensing portion for applying an adhesive for adhering the component to each of the plurality of jigs by an adhesive dispensing head; A component transfer unit for vacuum-sucking the component from the component supply unit by a transfer head and transferring the component to the component mounting unit; A component adsorption state checking unit which checks a state in which the component is adsorbed to the component transport unit during the transport of the absorbed component; An application step of applying the adhesive to each of the plurality of jigs in the adhesive dispensing unit, a transfer step of adsorbing and transporting the parts in the component transfer unit, and the adsorption based on a result of confirmation of the component adsorption state checking unit It provides a component mounting apparatus including a control unit for controlling a mounting step of mounting the component on the jig coated with the adhesive, and a position adjusting step of adjusting the suction state of the component to match the arrangement of the jig.

In addition, the component supply portion may be formed so as to cover a supply stand with an opening formed in an upper portion in a central portion thereof, and a sheet on which the plurality of components adhere to the upper surface of the feed stand, and at least part of the opening of the feed stand. Seat fixing means for fixing, and a support mechanism for supporting the sheet in a vacuum suction state at a lower portion of the component to be sucked and conveyed by horizontal transfer and vertical lifting within the opening.

The component transfer unit further includes a component placement confirmation camera for photographing the surface of the sheet on which the component is held in order to move the transfer head onto the desired component.

In addition, the feed table is capable of moving in the horizontal direction and rotating θ.

The support mechanism also includes at least one pressure pin that protrudes and interpolates from the support mechanism to push the component upwards through the seat while supporting the seat from below.

In addition, the number and arrangement positions of the pressing pins in the support mechanism can be arbitrarily adjusted.

The adhesive dispensing unit and the component conveying unit may further include an approach detecting sensor that generates an alarm signal when the adhesive dispensing head and the conveying head approach within a predetermined distance.

The component adsorption state checking unit may further include a component adsorption state checking camera for photographing the adsorption state of the components vacuum-adsorbed to the transfer head.

In addition, the component adsorption state checking unit is disposed on a movement path of the transfer head that moves between the component supply unit and the component mounting unit.

The adhesive dispensing unit further includes a camera for confirming jig arrangement for photographing a state in which the plurality of jigs are arranged in the component mounting unit.

The present invention also provides a method comprising: disposing a plurality of parts on a supply table and disposing a plurality of jigs on a mounting table; Photographing the part by a camera mounted to a transfer head to check a part arrangement state, and photographing the jig by a camera mounted to an adhesive dispensing head to confirm a jig arrangement state; The transfer head adsorbs a component to be bonded based on the identified component arrangement state and applying an adhesive to a jig to which the adhesive dispensing head is to be bonded; Photographing the adsorbed part while the conveying head moves toward the mounting table to check the adsorbed part; And attaching the sucked part to the jig based on the part suction state and the jig arrangement state.

According to the present invention as described above, by separately configuring the adhesive dispensing head for dispensing the adhesive to the jig to be mounted and the transfer head for adsorbing and transporting the parts to be mounted, and operating them independently, the working time of component mounting This greatly shortens the time.

In addition, since the parts to be transferred are gripped by vacuum suction, damage to the external appearance of the parts can be prevented.

In addition, since the parts adhered by the lifting pins which are lifted from the lower part of the seat on which the parts are arranged are separated, it is possible to prevent the damage of the parts occurring when the parts are separated.

In addition, since the number and placement positions of the pressing pins to be applied can be arbitrarily changed, the mounting operation can be performed regardless of the type or size of the component to be mounted.

In addition, by detecting the approaching state of the adhesive dispensing head and the transfer head to operate independently, it is possible to prevent the accident due to the head collision.

In addition, by using the component placement confirmation camera for confirming the arrangement of the components arranged on the sheet, the components can be adsorbed accurately regardless of the arrangement of the components. Furthermore, only the parts designated by the operator can be selectively mounted.

In addition, by photographing and confirming the adsorption state of the components adsorbed to the transfer head by using the component adsorption state checking camera, more accurate mounting is possible.

In addition, the camera for checking the component adsorption state is disposed on the copper wire that the transfer head moves to the component mounting portion, so that the work can be performed without disturbing the process of transferring the component, so that the working time is not increased.

Moreover, by using the jig arrangement | confirmation camera which confirms the arrangement | positioning state of a jig, it becomes possible to mount components correctly regardless of the arrangement | positioning state of a jig.

In addition, by separately configuring the camera for component placement, the camera for component adsorption, and the camera for jig placement, an illumination light or an image pickup device that is suitable for the optical characteristics of each component and jig can be used to suit the purpose. The operation can be performed correctly.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram showing the configuration of a component mounting apparatus according to an embodiment of the present invention. 2 is a perspective view showing the configuration of a component mounting apparatus according to an embodiment of the present invention.

The component mounting apparatus includes a component supply unit 100, a component mounting unit 500, an adhesive distributing unit 400, a component transfer unit 200, a component adsorption state checking unit 300, and a control unit 600. In addition, the base 700 is provided with each of the fixed parts.

The component supply part 100 and the component mounting part 500 are comprised so that a movement on at least the longitudinal direction (Y-axis direction) may be carried out on the base 700 along a horizontal plane. In addition, the adhesive distributing unit 400 and the component conveying unit 200 are configured to be movable at least in the horizontal direction (X-axis direction) along the horizontal plane on the base 700. Here, the adhesive distribution part 400 and the component conveyance part 200 are arrange | positioned so that the movement is possible in the upper part of the component supply part 100 and the component mounting part 500. In addition, the adhesive distributing unit 400 and the component transfer unit 200 may descend and rise toward the component supply unit 100 and the component mounting unit 500 disposed below.

In the component supply unit 100, a plurality of components 130 to be mounted are arranged. The component supply part 100 is a part to which the component 130 is stuck in the supply base 110 in which the opening 160 was formed toward the upper part in the center part, and the sheet | seat 120 in which the several components 130 are adhesively held. A sheet fixing means 150 for horizontally fixing the sheet 120 so as to cover at least a part of the opening 160 of the feeder 110 from the upper surface of the feeder 110 by holding a portion except for a portion; The transfer head 210 in a state in which the sheet 120 is vacuum- suctioned from the lower portion of the part 130 to which the transfer head 210 is to be sucked by moving horizontally and vertically in the opening 160 formed in the supply stand 110. ), A support mechanism 170 for supporting.

The supply base 110 can move independently (relatively) with respect to the longitudinal movement of the component transfer part 200. That is, at least the rotation in the θ direction that rotates about the Z axis is possible, and may be configured to further enable horizontal movement in the X and Y axis directions. The supply stand 110 has a tubular shape in which a central portion thereof is opened upward, and an upper surface including the opened portion forms a horizontal plane. This form is shown in FIG. 3.

On the upper surface of the supply table 110, the flexible sheet 120 to which the plurality of parts 130 are adhered is held. The sheet 120 is formed to be at least larger than the size of the opening 160 and the outside of the sheet 120 comes into contact with the upper surface of the feed table 110, and the contact portion grips the sheet 120 in a horizontal plane. The sheet fixing means 150 for fixing with a screw is arranged. The sheet fixing means 150 fixes the sheet 120 horizontally to the upper surface of the feed table 110, and then the sheet 120 is supplied even when the conveying head 210 separates the attached part 130. Any kind of thing can be applied as long as it can maintain a fixed state on the base 110.

As for the support mechanism 170 arrange | positioned inside the opening 160 formed in the supply base 110, the upper surface is a horizontal plane, and can move horizontally in the X and Y-axis directions, and can vertically raise and lower in the Z-axis direction. See Figures 4 (a) and 4 (b) for the structure of the support mechanism.

The support mechanism 170 has an empty inside, and a plurality of suction holes 171 are formed in communication with the empty interior of the support mechanism 170 and penetrated to penetrate the upper surface of the support mechanism 170. Is connected to the suction hole 171 and a plurality of suction grooves 172 formed in the horizontal direction is formed. This suction hole 171 is connected with a vacuum pump (not shown) through the inside of the support mechanism 170. The support mechanism 170 moves horizontally to the lower part of the component 130 to be conveyed by the conveying head 210 at the time of the component adsorption operation of the component conveying unit 200, and then to the horizontal plane of the supply table 110 ( Or ascending higher by a predetermined height) so as to contact the lower portion of the sheet 120 and vacuum suction the lower portion of the sheet to which the component to be conveyed is adhered to fix the sheet. In this state, when the transfer head 210 descends to absorb the component 130 to be transferred and rises again, the component 130 is separated from the seat 120 fixed by the support mechanism 170.

On the other hand, the support mechanism 170 is protruded outward through the insertion hole 173 and the insertion hole 173 from the inside of the support mechanism 170, and can be retracted into the insertion hole 173 again. A plurality of pressure pins 174 is disposed. The pressing pin 174 is one side (upper surface) of the component 130 to be transferred by the transfer head 210 after vacuum suction the sheet 120 of the lower portion of the component 130 to be transferred by the support mechanism 170 When the component 130 is lifted in the vacuum suction state and the component 130 is to be removed from the sheet, the component 130 is projected from the support mechanism 170 and the component 130 to be conveyed from the lower portion of the sheet 120 is pushed upward. 130 to help with separation.

One or more of the pressure pins 174 may be arranged in any shape according to the size and shape of the component 130, and protrude simultaneously with the component adsorption operation. In addition, the pressing pin 174 may be more efficiently separated from the sheet 120 and the component 130 by sharpening the end thereof.

The component mounting unit 500 includes a mounting table 510 in which a tray 520 in which the plurality of jigs 530 on which the component 130 is to be mounted is aligned is placed in a fixed state.

The mounting table 510 may move vertically in the Y-axis direction on the base 700 and may move independently of the component transfer part 200 and the adhesive distributing part 400. The mounting table 510 may include a separate tray fixing means 550 for fixing the tray 520.

The component transfer part 200 includes a transfer head 210 for absorbing one or a plurality of components 130 and mounting them on the jig 530. Under the control of the control unit 600, the transfer head 210 moves from the component supply unit 100 to the upper portion of the component 130 to be mounted, and then descends to be raised after adsorption of the component. After moving to the upper part of the jig 530 to be mounted, the lowered and absorbed parts 130 are seated and pressed onto the jig 530 to perform a mounting operation.

On the other hand, the component transfer unit 200 is further provided with a component placement confirmation camera 220 for capturing a state in which the plurality of components 130 are disposed in the component supply unit 100. That is, the parts 130 adhered on the sheet 120 fixed to the supply table 110 are photographed from above, and the state in which the parts 130 are maintained is checked. In the operation for absorbing the component 130, the component 130 having the defect indication is automatically recognized based on the captured image, and the component 130 is absorbed except for the defective component 130. do. In addition, an operator who manipulates the component mounting apparatus according to the present invention may view the image photographed therein so as to adsorb and mount only the component 130 arbitrarily selected.

Further, the transfer head 210 rotates and finely adjusts the absorbed component 130 in response to the arrangement state of the jig 530 in which the component 130 disposed in the component mounting unit 500 is to be mounted. Include.

The adhesive dispensing unit 400 has an adhesive dispensing head 410 for applying the adhesive. The adhesive dispensing head 410 is lowered toward each of the plurality of jigs 530 disposed in the component mounting unit 500 under the control of the controller 600, and then the component 130 is moved by the transfer head 210. An adhesive is applied to the jig 530 in a suitable and appropriate form so that it can be bonded.

Meanwhile, the adhesive distributing unit 400 further includes a jig arrangement checking camera 420 for photographing a state in which the plurality of jigs 530 are disposed on the component mounting unit 500. That is, the plurality of jigs 530 arranged on the tray 520 fixedly mounted on the mounting table 510 are photographed from the top, and the arrangement state of the respective jigs 530 is recognized. Then, in the operation of mounting the component 130, the horizontal movement or rotation of the component 130 to be precisely matched with the arrangement of the jig 530 is performed, whereby a more accurate component mounting operation can be performed.

The component adsorption state confirming unit 300 includes a component adsorption state checking camera 310 for photographing the adsorption state of the components adsorbed and held by the transfer head 210. The photographed image is transmitted to the controller 600. That is, by photographing the parts 130 adsorbed and held by the transfer head 210, it is possible not only to check whether the parts are adsorbed in the X-axis and Y-axis directions with respect to the transfer head 210, but also by the transfer head ( It is possible to check whether it is adsorbed by rotating in the θ direction with respect to 210).

The control part 600 controls the operation | movement of each part of the component mounting apparatus which concerns on this invention.

First, when the component is placed in the component supply part 100, the control part 600 confirms the arrangement state of the component 130. FIG. That is, when the sheet 120 on which the plurality of parts 130 are adhered and held on the supply table 110 of the component supply unit 100 is fixed by the sheet fixing means 150, the camera 220 for component placement checking Moves to the upper part of the sheet 120 to photograph the adhered parts 130. Then, by analyzing the photographed image, it is confirmed that the adhesion state of each of the components 130. At this time, it is also checked whether or not each part 130 has a check mark.

Moreover, when the jig 530 is placed in the component mounting part 500, the control part 600 confirms the arrangement | positioning state of the jig 530. That is, when the tray 520 in which the plurality of jigs 530 are arranged is placed on the mounting table 510 of the component mounting unit 500 and fixed by the tray fixing means 550, the camera 420 for checking jig arrangement. Move to the upper portion of the tray 520 to photograph the jig 530 arranged. The jig 530 is arranged to analyze the captured image. The captured image is transmitted to display means (not shown) for display by the operator.

Each of these photographings is performed separately by the component conveying unit 200 and the adhesive dispensing unit 400 each having a camera, so that rapid photographing is possible. In addition, when the object to be photographed is a mixture of transparent and opaque ones, a special lighting and a camera different from general lighting and a camera are required. You can respond with. That is, when the component 130 to be mounted is a transparent filter, a light having a special wavelength suitable for photographing the filter must be applied for this purpose. On the other hand, since the jig 530 on which the component 130 is mounted is generally opaque, general lighting may be used. Therefore, even when the parts and / or jig are transparent or opaque and the optical properties are different, it is possible to easily apply the lighting and / or camera lens suitable for each.

When the arrangement of the components 130 and the arrangement of the jig 530 are confirmed by the photographing of each camera, the controller 600 drives the transfer head 210 of the component transfer unit 200 to supply the component supply unit 100. ) Absorbs the component 130 disposed in the) and moves to the component mounting portion 500 side.

At this time, the component adsorption state check unit 300 disposed in the path of the movement of the transfer head 210 allows the component 130 adsorbed to the transfer head 210 to be photographed. That is, the camera 310 for checking the component adsorption state photographs the component 130 adsorbed from the lower portion of the transfer head 210, and analyzes the photographed image in the control unit 600 to analyze the captured image. The positional relationship of 130 can be found. That is, it is analyzed whether parts are adsorbed in the X-axis and Y-axis directions opposite to the transfer head or rotated in the θ direction about the transfer head 210. Then, after moving the part 130 adsorbed by the transfer head 210 to the upper part of the jig 530 to be attached, the adsorbed part is adjusted in the horizontal direction and θ direction according to the arrangement state of the jig 530. Position, and the transfer head 210 is lowered to attach the component 130 to the jig.

In this operation, the control unit 600 also controls to prevent the transfer head 210 of the component transfer unit 200 and the adhesive dispensing head 410 of the adhesive dispensing unit 400 from colliding with each other. That is, since the component transfer unit 200 and the adhesive distributing unit 400 are disposed on the rail in the same X-axis direction, collisions may occur when controlled individually. Therefore, in order to prevent this, the component transfer part 200 and / or the adhesive dispensing part 400 determine whether the transfer head 210 and the adhesive dispensing head 410 have approached each other at a distance that can collide with each other, and approach to prevent a collision. The detection sensor 230 is provided. That is, when the approach detection sensor 230 is installed on at least one side of the transfer head 210 or the adhesive dispensing head 410, and the two heads approach within a predetermined distance, the approach detection sensor 230 receives a collision warning signal. When the signal is output, the control unit 600 performs an operation such as stopping movement of each head or adjusting an interval.

Next, an operation process of the component mounting apparatus according to the embodiment of the present invention having the configuration as described above will be described with reference to FIG. 4. 4 is a flowchart illustrating an operation of a component mounting apparatus according to an exemplary embodiment.

First, by using a manual operation by a worker or a separate device, the sheet 120 to which the plurality of parts 130 are adhered to the supply stand 110 of the component supply unit 100 is fixedly maintained. In addition, the tray 520 in which the plurality of jigs 530 are disposed is fixedly held on the mounting table 510 of the component mounting unit 500 (S10).

When the component mounting apparatus is driven in this state, first, the component placement confirmation camera 220 of the component transfer part 200 moves on the sheet 120 of the component supply part 100 to adhere to the sheet 120. 130) Shoot them. In addition, the jig arrangement confirmation camera 420 of the adhesive distributing unit 400 moves on the tray 520 of the component mounting unit 500 to photograph the jig 530 disposed on the tray 520.

The photographed images are transmitted to the controller 600, and the controller 600 analyzes each arrangement state of the parts 130 and the jig 530 by using the respective images and stores them in a predetermined storage unit. (S20). In this way, since the arrangement state of the component 130 and the arrangement state of the jig 530 are simultaneously made by each camera, the operation of the position recognition process can be performed quickly.

Next, the adhesive distribution unit 400 distributes the adhesive to each jig 530 under the control of the control unit 600 (S30). In addition, the component transfer unit 200 is lowered onto the sheet 120 of the component supply unit 100 under the control of the control unit 600, and at the same time the support mechanism 170 and the pressing pin 174 is raised to raise the sheet ( By pushing up at least one component 130 adhered to 120, the component 130 is vacuum-adsorbed to the transfer head 210 of the component transfer unit 200, and the component transfer unit 200 absorbs the component 130. In the state is moved toward the component mounting portion 500 (S40). At this time, the control unit 600 drives the component adsorption state check unit 300 to move the component 130 adsorbed to the transfer head 210 while the component transfer unit 200 passes the upper portion of the component adsorption state check unit 300. Photographing is performed, and the captured image is analyzed to analyze a state in which the component 130 is displaced in the X and Y-axis directions from the reference position of the component transfer unit 200 and / or a state in which the component is displaced by rotation in the θ direction. Then, according to the analysis result, the position of the component 130 is adjusted to match the arrangement of the jig 530 to be mounted (S50). In this way, since the adsorption state of the component 130 adsorbed to the component transfer part 200 can be photographed and analyzed during the movement on the movement path of the component transfer part 200, the operation of the component position adjusting process can be performed quickly. .

In this way, when the component transfer part 200 reaches the upper part of the jig 530 to be mounted in the component mounting part 500 in the state where the component is adjusted, the component 130 is placed on the jig 530 in which the adhesive is distributed. ) Is pressed and mounted (S60).

Here, the imaging of the component arrangement state and the imaging of the jig arrangement state may be performed at the same time, or may be performed separately in any order. In addition, the adsorption of the component 130 by the transfer head 210 and the adhesive application by the adhesive dispensing head 410 may also be performed simultaneously, of course, may be performed individually in any order.

1 is a block diagram showing the configuration of a component mounting apparatus according to an embodiment of the present invention.

2 is a view showing the configuration of a component mounting apparatus according to an embodiment of the present invention.

3 is a view showing a component supply unit of a component mounting apparatus according to an embodiment of the present invention.

4 (a) and 4 (b) are views showing the structure of the support mechanism in the component mounting apparatus according to the embodiment of the present invention.

5 is a flowchart illustrating an operation of a component mounting apparatus according to an exemplary embodiment.

Claims (11)

A component supply unit in which a plurality of components are arranged; A component mounting unit in which a plurality of jigs on which the component is to be mounted are arranged; An adhesive dispensing portion for applying an adhesive for adhering the component to each of the plurality of jigs by an adhesive dispensing head; A component transfer unit for vacuum-sucking the component from the component supply unit by a transfer head and transferring the component to the component mounting unit; A component adsorption state checking unit which checks a state in which the component is adsorbed to the component transport unit during the transport of the absorbed component; An application step of applying the adhesive to each of the plurality of jigs in the adhesive dispensing unit, a transfer step of adsorbing and transporting the parts in the component transfer unit, and the adsorption based on a result of confirmation of the component adsorption state checking unit And a control unit for controlling a mounting step of mounting the component on the jig to which the adhesive is applied, and a positioning step of adjusting the suction state of the component to match the arrangement state of the jig. The method of claim 1, The component supply unit may be configured to horizontally fix a supply stand having an opening toward the top in a central portion thereof, and to hold a sheet in which the plurality of parts are adhered to the upper surface of the supply stand, or to cover at least a part of the opening of the supply stand. And a support mechanism for supporting the sheet in a vacuum suction state from the lower portion of the component to be sucked and transported by horizontal transfer and vertical raising and lowering in the opening. Component mounting apparatus. The method of claim 2, And said component transfer part further comprises a component placement confirmation camera for photographing the surface of said sheet on which said component is held in order to move said transfer head onto said desired component. The method of claim 3, The supply table is a component mounting apparatus, characterized in that the movement in the horizontal direction and θ rotation. The method of claim 4, wherein The support mechanism includes at least one pressure pin that protrudes and retracts from the support mechanism to push the component upward through the seat while supporting the seat from below. . The method of claim 5, The component mounting apparatus according to claim 1, wherein the number and placement positions of the pressing pins are arbitrarily adjustable. The method of claim 1, The adhesive dispensing unit or the component conveying unit may further include an access detecting sensor that generates an alarm signal when the adhesive dispensing head and the conveying head approach within a predetermined distance. The method of claim 1, The component adsorption state confirming unit further comprises a component adsorption state checking camera for photographing the adsorption state of the component vacuum-adsorbed by the transfer head. The method of claim 8, And the component adsorption state checking unit is disposed on a movement path of the transfer head that moves between the component supply unit and the component mounting unit. The method of claim 1, And the adhesive distributing unit further comprises a jig arrangement confirming camera for photographing a state in which the plurality of jigs are arranged in the component mounting unit. Disposing a plurality of parts on a supply table and disposing a plurality of jigs on a mounting table; Photographing the part by a camera mounted to a transfer head to check a part arrangement state, and photographing the jig by a camera mounted to an adhesive dispensing head to confirm a jig arrangement state; The transfer head adsorbs a component to be bonded based on the identified component arrangement state and applying an adhesive to a jig to which the adhesive dispensing head is to be bonded; Photographing the adsorbed part while the conveying head moves toward the mounting table to check the adsorbed part; And attaching the adsorbed part to the jig based on the part adsorption state and the jig arrangement state.

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