JPH09226935A - Component suction method, suction head, and component transfer device - Google Patents

Abstract

(57) Abstract: The present invention relates to a component suction method for sucking a component and transporting it to a predetermined position of an inspection device and placing it, for example, for product inspection of a component such as a diode. With regard to the above, when a plurality of suction heads are equipped to pick up parts,
The purpose is to switch the application of the suction action depending on the presence or absence of parts. A method of sucking a component 4 by a suction means 7a via a suction head 1, wherein the suction head 1 is slidably equipped with a nozzle 3 having a suction flow path 3c for sucking the component. The suction flow path 3c is in communication with the suction means 7a due to the movement of the nozzle 3 that abuts and slides on a part of the component 4 due to the presence of the component 4, and the suction action is given to the nozzle 3. That is, the component 4 is sucked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a component adsorption method for adsorbing a component and transporting it to a predetermined position of an inspection device for placement or transfer in order to inspect a product such as a diode. And a suction head and a component transfer device used in the method.

[0002]

2. Description of the Related Art Conventionally, in a component suction method, a suction head is provided at the tip of an arm that reciprocates between a component supply position and, for example, a component inspection position of a product inspection device, and the suction head is slidable. The nozzle contained in the nozzle is lowered to come into contact with the component, and the component is adsorbed to the nozzle by the suction flow passage opening at the tip of the nozzle and the suction means communicating with the suction flow passage.

Then, the nozzle is raised to rotate the arm as required, the suction head is positioned at a component inspection position, the nozzle is lowered to release the suction action of the suction means, and the component is mounted at a predetermined position. After that, the nozzle is raised again and the arm is rotated to return the suction head to the component supply position.

Further, as a method for improving the efficiency of component transfer work by sucking a plurality of components at a time, a plurality of the suction heads are mounted on an elongated horizontal arm, and the plurality of suction heads and suction pipes are provided. There is known a method of sucking a plurality of components by using a component transfer device which is connected to a suction means such as one vacuum device via the above.

[0005]

However, when a plurality of suction heads are sucked by the suction device at a time, if one of the suction heads does not have a component, the Since the suction head also acts on the suction head where there are no parts through the suction pipe, the outside air enters from the nozzle and leaks. In addition, if the switching of the suction action is configured by a sensor that detects the presence or absence of a component and a switching solenoid valve, there is a problem that the manufacturing cost increases and the entire device becomes complicated.

As described above, when the conventional component suction method, suction head, and component transfer device are equipped with a plurality of suction heads to suction the components, leakage occurs depending on the presence / absence of the components and the suction action may occur. There was a problem that it might decline.

[0007]

SUMMARY OF THE INVENTION The gist of the present invention to solve the above-mentioned problems is a method of sucking a component by suction means via a suction head. Nozzle having a suction passage is slidably provided, and the suction passage communicates with the suction means by the movement of the nozzle that slides by abutting against a part of the component due to the presence of the component. This is a state in which the suction action is applied to the nozzle to suck the component.

Further, the gist of the suction head according to the present invention for solving the above-mentioned problems is to provide a cylindrical head body, a nozzle slidably inserted in the head body and held therein, and a suction nozzle. A suction head configured to suck a component at a tip of the nozzle, the suction head configured to suction through a flow path, and a nozzle that slides in contact with a part of the component when the component is present. Is provided so that the suction means and the suction flow path of the nozzle are brought into communication with each other by the movement of.

The gist of the component transfer apparatus according to the present invention is that a cylindrical head body, a nozzle slidably inserted in the head body and held therein, and a suction action on the nozzle via a suction passage. And a suction means for allowing the suction part to come into contact with a part of the part and slide due to the presence of the part so that the suction part and the suction flow path of the nozzle are in communication with each other. A plurality of suction heads for sucking the components are provided on the arm that reciprocates between the component suction location and the component supply location, and the suction flow paths of each nozzle are collected and connected to one suction means. Is.

According to the component suction method of the present invention, depending on the presence or absence of the component to be sucked, the suction flow path of the nozzle in the suction head is in communication with the suction means due to the movement of the nozzle when the component is present, and the component is not connected. If it is present, the nozzle does not move and the suction means is in a non-communication state. Therefore, when there is no component to be sucked in the suction head, even if the component is lowered at the component supply position in an attempt to suck the component, the suction action is not given to the nozzle of the suction head, and the outside air is sucked from the nozzle to suck the suction force. It is possible to prevent the inconvenience that the value decreases.

As described above, it is possible to prevent the energy loss in the suction means by automatically switching the presence or absence of the component with a simple structure to automatically apply the suction action of the suction head. Further, according to the suction head of the present invention, it is possible to switch whether or not the suction action is applied to the nozzle depending on whether or not the nozzle moves depending on the presence or absence of the component. Further, according to the component transfer device of the present invention, the suction heads at the parts-free locations among the plurality of suction heads are
The suction action is not applied in the component suction operation, and the suction heads at the locations where other components are present perform the suction action without reducing the suction force.

[0012]

Next, an embodiment according to the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the suction head 1 according to the present invention has a cylindrical head body 2, a nozzle 3 slidably mounted in an internal space of the head body 2, and parts such as a diode. In order to take out 4 from the socket 5, it comprises take-out pawls 6 and 6 which can be opened and closed in a direction orthogonal to the axis of the nozzle 3, and a suction device 7 as a suction means for giving a suction action to the nozzle 3.

The head main body 2 is, for example, vertically installed on a horizontal plate-shaped arm 8, and the head main body 2 is moved up and down by a predetermined amount by the vertical movement of the arm 8 with respect to the component 4.

In the head body 2 and the nozzle 3, a space formed by the inner peripheral wall surface of the head body 2, the nozzle rear end surface 3a, and the inner surface 8a of the arm 8 on the rear end side of the nozzle 3. A section 9 is provided.

In the space portion 9, the nozzle 3 will be described later.
Sufficient to allow the relative movement with respect to the head main body 2 due to the presence of the component 4 and the movement for separating from the take-out pawl 6 after the nozzle 3 sucks the component 4 as described later. It has a wide movement space.

A coil spring 10 as a biasing means for constantly biasing the nozzle 3 so as to project from the head body 2 is installed in the space 9 and the nozzle 3 is provided on the inner surface 8a of the arm 8. A stopper 11 for restricting the movement of the stopper 11 is projected, and an elastic buffer 12 such as rubber or sponge is attached to the tip end surface of the stopper 11.

A convex ring 13 is provided on the inner peripheral wall surface of the head body 2 so that the slidable nozzle 3 does not come out.
Is provided, and a flange 3b is provided at the rear end of the nozzle 3 so as to engage with the convex ring 13.

The inner peripheral wall surface of the head body 2 and the nozzle 3
The outer peripheral wall surface is slidable and has airtightness to prevent outside air from entering.

A suction flow path 2a connected to a suction pipe 7a of the suction device 7 is provided on the side wall of the head body 2 so as to penetrate inward and outward, and is formed as a ring-shaped recess on the inner wall surface side. There is.

Further, one end of the nozzle 3 is opened at the tip of the nozzle, and the other end of the nozzle 3 is connected to the suction device 7 and the suction channel 2a of the head body 2 by the relative movement of the nozzle 3 with the head body 2. The suction flow path 3c is provided at the communicating position.

Further, the suction passage 3c of the nozzle 3 is extended to the rear end side of the nozzle and communicates with the space 9. This makes it possible to move the nozzle 3 to the head body 2 (upward in FIG. 1) by making the space 9 vacuum.

When the nozzle 9 is moved while the space 9 is evacuated, a vacuum space is formed between the abutting surfaces of the flange 3b at the rear end of the nozzle and the convex ring 13 of the head body 2. The convex ring 13 so that an excessive load is not generated.
The outside air introduction hole 13a is provided in the.

The tip of the nozzle 3 is equipped with a chuck 3d which can be replaced as an attachment as appropriate according to the shape and type of the component 4 to be sucked.

Next, the take-out claw 6 is, as shown in FIG.
The whole is an elongated plate-like body, and is arranged at a position facing the tip of the nozzle 3, for example, in a horizontally opposed arrangement.
It is rotatably supported at both ends of the arm 8 by approximately 90 °, and is configured to be openable / closable by operating a drive source such as air, vacuum, hydraulic pressure, etc. by controlling a solenoid valve by a control device.

In use thereof, the tip of the claw enters the lower side of the component 4 to be in a closed state, and as the head body 2 rises, the component 4 is taken out from the socket 5 and is separated from the tip of the nozzle 3. The component 4 is held between them. After that, the arm 8 is rotationally moved, and when it reaches a transfer position such as a predetermined component inspection position and is ready to mount the component 4, the arm 8 is opened.

The suction head 1 formed as described above
As shown in FIGS. 2 to 3, for example, the holder 8c
In the plate-shaped arm 8 attached to the tip of the arm 8b that is rotatable in the horizontal direction and the vertical direction, for example, ten suction heads 1 are arranged and fixed.

A chucking device 15 is provided at both ends of the arm 8 in the longitudinal direction via L-shaped brackets 14.
Is provided. The chucking device 15 has elongated bar-shaped take-out claws 6 and 6 fixed thereto.

Further, the suction pipes 7a are provided as branch pipes on the ten suction heads 1, 1, ... Fixedly mounted on the arm 8, and are integrated into a suction pipe 7b. The suction pipe 7b is connected to a suction device 7 (not shown).

In this way, the component transfer device 16 according to the present invention in which the plurality of suction heads 1 are mounted on the arm 8 is formed.

Next, using the parts transfer device 16,
A component suction method according to the present invention will be described in which a plurality of components 4 placed on a socket are sucked at one time, and for example, transferred to an inspection position of an inspection device.

First, the state shown in FIG.
6, the holder 8c is rotated from this state to rotate the arm 8b, and the plurality of suction heads 1 are lowered via the arm 8. At this time, the head body 2
At the same time, the nozzle 3 also descends at the same time.

Next, when the head main body 2 is lowered to reach a predetermined position, the chuck 3d of the nozzle 3 is partially attached to the component 4.
For example, it abuts the flange of the component 4. Here, the lowering of the nozzle 3 is stopped, but at this lowered position, the take-out pawls 6 and 6 cannot go into the lower side of the component 4, so that the arm 8 is further attached to the flange thickness of the component 4 shown in FIG. The stroke difference s corresponding to is lowered. Therefore, the head body 2 of the suction head 1 and the take-out pawls 6 and 6 descend against the biasing force of the coil spring 10 in the space 9.

Then, the chucking device 15 is actuated to rotate the take-out pawls 6 and 6 by about 90 ° to close them. This state is the state shown in FIG. The take-out claw 6
There is only a small gap between the upper surface of the and the lower surface of the flange of the component 4.

Further, after the lowering of the nozzle 3 comes into contact with the component 4 and stops, the head main body 2 further lowers, so that the position of the suction passage 2a of the head main body 2 is lowered, and the head main body 2 is not communicating in the initial state. The suction flow passage 2a and the suction flow passage 3c of the nozzle 3 communicate with each other.

Then, the arm 8 is lifted from the component contact state shown in FIG. At the same time, the head body 2 and the take-out claw 6
Coil spring 1
The lower surface of the flange of the component 4 is removed by the urging force of 0.
It slightly protrudes until it comes into contact with the upper surface of. Even in this state, the communication state between the suction flow channel 2a and the suction flow channel 3c is maintained.

Next, the suction device 7 is operated to suck the component 4 onto the chuck 3d at the tip of the nozzle 3 through the suction pipes 7a and 7b. At the same time, the space 9 communicating with one end of the suction channel 3c is also evacuated, and the nozzle 3
Are pulled toward the stopper 11.

The state in which the nozzle 3 is drawn and the nozzle rear end surface 3a is in contact with the elastic cushioning body 12 of the stopper 11 is shown in FIG. The relative movement of the nozzle 3 caused by the vacuum of the space 9 causes the space 16 formed on the lower surface of the flange 3b at the rear end of the nozzle and the upper surface of the convex ring 13 of the head main body 2, The external air does not flow into the nozzle 3 through the external air introduction hole 13a and an extra load is not generated.

Then, by moving the nozzle 3, FIG.
As shown in FIG. 5, a sufficient gap is provided between the lower surface of the flange of the component 4 attracted to the tip of the nozzle 3 and the upper surfaces of the take-out claws 6 and 6 to prevent scratches due to contact.

On the other hand, of the plurality of suction heads 1, the component 4
6 is not placed in the socket, the head main body 2, the nozzle, and the ejection claws 6 and 6 descend by a predetermined amount, as shown in FIG. Therefore, since there is no relative movement between the head body 2 and the nozzle 3 due to the presence of the component 4 (for the stroke difference s shown in FIG. 1), the suction passage 2a of the head body 2 and the nozzle 3 Suction channel 3c of
In the initial state of the component transfer device 16, the suction flow path remains unconnected.

Therefore, even if the suction head 1 is lifted and the suction device 7 is subsequently operated, only the inside of the suction passage 2a of the head body 2 is evacuated, and the suction passage 3c of the nozzle 3 is evacuated.
The outside air does not enter through the. As a result, of the plurality of suction heads 1 fixed to the arm 8 of the component transfer device 16, the suction force of the suction head that has the component 4 and sucks it does not decrease.

In this way, when a plurality of suction heads arranged corresponding to the plurality of components are sucked and transferred at one time, when there are no components in a part of the socket for mounting the components. Even if there is a leak, a component transfer device 16 that can maintain a predetermined suction force without causing any influence on the suction head in which the suction target component is present
It is what becomes.

After that, the arm 8 holding the component 4 on each of the plurality of suction heads 1 is horizontally rotated by a predetermined amount by the arm 8b and set at the inspection position of the inspection device, for example. After that, the chucking devices 15 at both ends of the arm 8 are operated to rotate the take-out pawls 6 and 6 by 90 ° so as to separate them from the above-mentioned adsorption state, and open the state.

Then, the arm 8 is rotated in the vertical direction by the arm 8b to lower the plurality of suction heads 1, and when the suction heads 1 reach a predetermined position, the suction action of the suction device 7 is stopped.

As a result, the suction force is deenergized and the nozzle 3 is projected by the urging force of the coil spring 10, and then the component 4 drops from the chuck 3d at the tip of the nozzle 3 and is placed at a predetermined inspection position. Is. Further, since the nozzle 3 protrudes and moves, the communication state between the suction flow passage 2a of the head body 2 and the suction flow passage 3c of the nozzle 3 is blocked, and the nozzle 3 is cut off.

After that, the suction head 1 is moved up and down, the arm 8 is again rotated in the horizontal direction, and the component transfer device 16 is returned to the initial state.

As another embodiment of the component transfer device 16 according to the present invention, in a plurality of suction heads 1, the stopper 11 and the elastic cushioning material 12 in the space 9 shown in FIG. Nozzle 3 by spring 10
It can also be used as a movement restriction. Further, as another example of the structure for connecting the suction flow passage 2a of the head main body 2 and the suction flow passage 3c of the nozzle 3 to each other, the opening / closing lid provided in the suction flow passage 2a by the movement of the nozzle 3 due to the presence of the component 4 It may be a mechanical structure in which the lever is opened with a lever or the like. In this way, in the component transfer device that suctions a plurality of components, even when there are no components in part, a stable component suction operation can be performed.

[0047]

As described above, the component suction method according to the present invention is a method of sucking a component by suction means via a suction head, and the suction head is provided with a suction flow path for component suction. A nozzle is slidably mounted, and the suction flow path is in communication with the suction means by the movement of the nozzle that slides in contact with a part of the component due to the presence of the component, and the suction channel is suctioned to the nozzle. This is a method of adsorbing the parts by applying the action.Therefore, when there is no part to be adsorbed, the suction flow path is not communicated, so that the outside air does not enter through the nozzle and the suction force is prevented from decreasing. Since the suction action is given to the nozzle when there is a component, the excellent effect is obtained that the suction action works efficiently.

On the rear end side of the nozzle, there is provided a space for allowing relative movement of the nozzle, which is in contact with a part of the component and slides, with respect to the suction head, when the component is present. Therefore, there is an excellent effect that the communication state of the suction flow path can be switched by a mechanical operation and the manufacturing cost can be reduced.

Since one end of the suction flow path is opened at the tip of the nozzle and the other end is opened at a position communicating with at least the suction means by the movement of the nozzle, the suction flow depending on the presence or absence of parts is simple. It has an excellent effect that the communication state of the road can be switched.

Since the suction means is operated to perform suction after holding the part between the tip of the nozzle and the pick-up claw, there is an excellent effect that the pick-up error of the part is eliminated and the suction work is surely performed. Play.

The space on the rear end side of the nozzle is communicated with the suction flow path of the nozzle so that when the suction means picks up a component, the suction means receives the suction action of the suction means to separate the nozzle from the take-out pawl. Therefore, there is an excellent effect that the damage of the component due to the contact between the component attracted to the nozzle and the openable / closable take-out claw is surely prevented.

A plurality of suction heads each comprising the nozzle and a head main body holding the nozzle slidably are provided on an arm that reciprocates between a component suction point and a component supply point. Assuming that the paths are grouped and connected to one suction means, when a plurality of suction heads corresponding to this are suctioned at one time, only the suction heads where the components are present are suctioned. Since the action is imparted, the suction action does not leak due to the absence of parts, and an excellent effect is obtained that a stable suction action is obtained at a low cost.

The suction head according to the present invention comprises a cylindrical head body, a nozzle slidably inserted in the head body and held therein, and a suction means for causing a suction action on the nozzle via a suction flow path. And a suction head for sucking a component at the tip of the nozzle, wherein the nozzle is brought into contact with the component during suction so that the suction means and the suction flow path of the nozzle are in communication with each other. Because it is provided in
Since the suction action is performed only when there is a component, an excellent effect is obtained in that the suction head has an efficient suction action.

The component transfer device according to the present invention comprises a cylindrical head body, a nozzle slidably inserted in the head body and held therein, and a suction for causing a suction action on the nozzle via a suction flow path. And a suction flow path of the nozzle is brought into communication with each other by the movement of the nozzle that slides in contact with a part of the component due to the presence of the component. A plurality of suction heads for sucking the components are provided on the arm that reciprocates between the component suction location and the component supply location, and the suction flow paths of each nozzle are collected and connected to one suction means. When transferring all the parts at once, even if some parts do not exist, the suction action is applied only to the suction head where the parts exist, so there is no energy loss in the suction means and suction is performed. Stable by preventing leakage of action Suction force is exerted, an excellent effect say a component transfer apparatus for secure adsorption operations.

[Brief description of drawings]

FIG. 1 is a sectional view showing a configuration of a suction head in a part of a component transfer device according to the present invention.

FIG. 2 is a plan view of the component transfer device according to the present invention.

FIG. 3 is a front view of the component transfer device according to the present invention.

FIG. 4 is a cross-sectional view showing a use state of the component transfer device according to the present invention and showing a state where the nozzle of the suction head abuts on the component.

FIG. 5 is a cross-sectional view showing a use state of the component transfer apparatus according to the present invention, showing a state in which a component is suctioned by a nozzle and a suction head is moving up and down.

FIG. 6 is a cross-sectional view showing a usage state of the component transfer device according to the present invention and showing a state in which no component is present.

[Explanation of symbols]

1 suction head, 2 head body, 2a suction flow path, 3
Nozzle, 3b flange, 3c suction channel, 3d chuck, 4 parts, 5 socket, 6 take-out claw, 7
Suction device, 7a, 7b suction pipe, 8, 8b arm,
8a inner surface, 8c holder, 9 space part, 10 coil spring, 11 stopper, 12 elastic cushioning material, 13 convex ring, 15 chucking device.

Claims (11)

[Claims] 1. A method of sucking a component by suction means via a suction head, wherein the suction head is slidably equipped with a nozzle having a suction flow passage for sucking the component, and the suction flow passage comprises: The presence of the component causes a movement of the nozzle that abuts and slides on a part of the component to establish a communication state with the suction means, and a suction action is given to the nozzle to attract the component. Part suction method. 2. A rear end side of the nozzle is provided with a space for permitting relative movement of the nozzle, which is in contact with a part of the component and slides when the component is present, with respect to the suction head. The component suction method according to claim 1, wherein: 3. The suction flow path according to claim 1, wherein one end of the suction flow path is opened at the tip of the nozzle, and the other end is opened at a position communicating with at least the suction means by the movement of the nozzle. Part adsorption method. 4. The suction head is provided with a take-out pawl that moves as the suction head moves up and down, and that is openable and closable in a direction orthogonal to the axis of the nozzle so as to hold a component between the suction head and the tip of the nozzle. The component suction method according to claim 1, wherein: 5. The component suction method according to claim 4, wherein the suction means is operated to perform a suction action after holding the component between the tip of the nozzle and the take-out claw. 6. A nozzle is separated from a take-out pawl by causing the space on the rear end side of the nozzle to communicate with the suction flow path of the nozzle and receiving a suction action of the suction means when a component is sucked by the suction means. The component suction method according to claim 2, wherein the component suction method is performed as follows. 7. A biasing means for acting in a direction of projecting the nozzle is provided in a space portion of the nozzle, and when the suction action of the suction means is released after a component is sucked at the tip of the nozzle, the nozzle is pushed from the tip of the nozzle. The component suction method according to claim 6, wherein the nozzle is projected before the component is detached. 8. A plurality of suction heads each comprising a nozzle and a head main body holding the nozzle slidably are provided on an arm that reciprocates between a component suction portion and a component supply portion, and suction heads for each nozzle are provided. The component suction method according to claim 1, wherein the flow paths are combined and connected to one suction means. 9. A nozzle comprising: a cylindrical head main body; a nozzle slidably inserted in the head main body; and held by the head main body; and suction means for applying a suction action to the nozzle via a suction passage. Is a suction head that sucks a component at the tip of, and the suction means and the suction flow path of the nozzle are in communication with each other due to the movement of the nozzle that abuts and slides on a part of the component due to the presence of the component. The suction head is characterized in that it is provided as follows. 10. A rear end side of the nozzle is provided with a space for allowing relative movement of the nozzle, which is in contact with a part of the component and slides, with respect to the suction head when the component is present. The suction head according to claim 9, wherein the space portion is communicated with the suction flow path of the nozzle. 11. A component having a cylindrical head body, a nozzle slidably inserted in the head body and held therein, and suction means for causing a suction action on the nozzle via a suction flow path, The suction head that is in contact with a part of the component due to the presence of the nozzle and the suction flow path of the nozzle is in communication with each other by the movement of the nozzle, A component transfer device, wherein a plurality of arms are provided on an arm that reciprocates between a suction location and a component supply location, and the suction flow paths of each nozzle are collected and connected to one suction means.