JP7116754B2 - Component chuck device and component mounting device - Google Patents

Description

The present invention relates to a component chucking device and a component mounting device.

2. Description of the Related Art Conventionally, it has been proposed to attach a component to a base material using a component chucking device that includes a clamp portion that laterally clamps a component with a pin protruding from below and a pusher portion that presses the component from above. For example, in the component chucking device of Patent Document 1, when negative pressure is supplied, the clamping portion clamps the component and the pusher portion moves to a standby position where it does not contact the component. The part unclamps the part and the pusher part pushes the part down. This causes the pins of the component to be inserted into the holes in the substrate to mount the component to the substrate.

WO2013/140571

However, in the above-described component chucking device, depending on the difference between the timing at which the clamping section releases the clamp and the timing at which the pusher section starts pushing down the component, there is a period during which the component is not supported at all. The posture of the part may not be stable, for example, the part may tilt before being inserted into the hole. In that case, it becomes difficult to properly attach the component to the substrate.

A main object of the present invention is to stabilize the posture of a component during mounting.

The present invention employs the following means in order to achieve the above main object.

The component chuck device of the present invention is
A component chuck device for inserting an insertion portion of a gripped component into an insertion target portion of a base material,
a gripping mechanism that grips the component while a negative pressure is being supplied;
a holding mechanism that holds the posture of the component by a holding member;
with
The holding mechanism is configured such that the holding member operates to hold the posture of the component both in a state in which the negative pressure is being supplied and in a state after the supply of the negative pressure is stopped. This is the gist.

In the component chucking device of the present invention, the holding member retains the posture of the component both in the state in which the negative pressure is being supplied and in the state after the negative pressure is stopped being supplied. As a result, even if the gripping mechanism releases the component by stopping the supply of the negative pressure or by supplying the positive pressure, the holding mechanism continues to hold the posture of the component, and the posture of the component being mounted is maintained. can be stabilized.

1 is a configuration diagram showing an outline of the configuration of a component mounting apparatus 10; FIG. FIG. 2 is a configuration diagram showing an outline of the configuration of a component chuck device 30; FIG. 2 is a block diagram showing a configuration related to control of the component mounting apparatus 10; 4 is an external view of a pusher mechanism 35 of the component chuck device 30; FIG. FIG. 3 is a configuration diagram showing an outline of the configuration of a pusher mechanism 35; FIG. 4 is an explanatory view showing how the component chucking device 30 operates when a negative pressure is supplied; FIG. 4 is an explanatory diagram showing how the component chucking device 30 operates when the supply of negative pressure is stopped. FIG. 4 is an explanatory view showing how the component chucking device 30 operates when positive pressure is supplied;

FIG. 1 is a block diagram showing an outline of the configuration of the component mounting device 10, FIG. 2 is a configuration diagram showing an outline of the configuration of the component chucking device 30, and FIG. It is a diagram. 1 is the X-axis direction, the front-rear direction is the Y-axis direction, and the vertical direction is the Z-axis direction.

The component mounting apparatus 10 includes, as shown in FIG. It includes a material holding device 18, a head 20 to which a component chuck device 30 for gripping a component P is attached, and a moving mechanism 60 for moving the head 20 in the XY directions. In addition, the component mounting apparatus 10 controls a mark camera 66 that captures the mark on the base material S, a parts camera 68 that captures the component P gripped by the component chucking device 30, and controls the component mounting device 10 as a whole. and a control device 80 (see FIG. 3). The component chuck device 30 is detachably attached to the head 20 . In addition to the component chucking device 30, the head 20 can be attached with a component sucking device that sucks the component P with a nozzle. The substrate S may be, for example, a printed wiring board, which is a circuit board, or a printed circuit on which electronic circuit components are mounted on one side and are electrically connected to each other, and no electronic circuit components are mounted on the other side. It includes a board, a substrate on which a bare chip is mounted and which constitutes a chip-equipped substrate, and a substrate on which an electronic circuit component having a ball grid array is mounted.

The component supply device 12 includes a tape feeder 14 that supplies components P by feeding out tapes to which components P with leads (radial components, axial components, etc.) are attached. When the component P is attached to the substrate S, the lead L (insertion portion) is inserted into the hole H (inserted portion) formed in the substrate S. As shown in FIG. The component mounting apparatus 10 also includes a lead processing device 19 (see FIG. 3) that bends or cuts the leads L inserted into the holes H. As shown in FIG.

The head 20 includes an elevating mechanism 22 (see FIG. 3) and a rotating mechanism 24 (see FIG. 3), and elevates and rotates the attached component chuck device 30 in the Z-axis direction and around the axis. An air flow path (not shown) is provided in the head 20 . This air flow path is connected via an electromagnetic valve 70 (see FIG. 3) to a negative pressure source 72 (see FIG. 3) such as a vacuum pump and a positive pressure source 74 (see FIG. 3) such as a compressor.

The component chuck device 30 includes a gripping mechanism 32 that grips the component P and a pusher mechanism 35 that can push the component P downward, as shown in FIG. The gripping mechanism 32 includes a pair of left and right gripping claws 33 (33a, 33b) and an air-driven gripping cylinder 34 (see FIG. 3) that opens and closes the gripping claws 33. As shown in FIG. The gripping mechanism 32 grips the part P by driving the gripping cylinder 34 to move the gripping claws 33 from the standby position in the closing direction while the supply of negative pressure is stopped. It is configured to release the grip by the claws 33 . For example, the gripping mechanism 32 is configured to close the gripping claws 33 against the force of the spring when the negative pressure is supplied, and to open the gripping claws 33 by the force of the spring when the supply of the negative pressure is stopped. may Alternatively, the gripping claws 33 may be configured to close when a negative pressure is supplied and to open the gripping claws 33 when a positive pressure is supplied. The pusher mechanism 35 includes a pusher member 36 that can come into contact with the upper surface of the component P, an air-driven pusher cylinder 37 that raises and lowers the pusher member 36, and a flow path switching valve that switches the air supply to the pusher cylinder 37. 39.

In addition, the connection port 31 a of the air supply path 31 is exposed on the mounting surface of the component chuck device 30 with the head 20 , and the connection port 31 a is connected to the air flow path of the head 20 when the component chuck device 30 is mounted on the head 20 . Therefore, the air supply path 31 is supplied with negative pressure from the negative pressure source 72 or positive pressure from the positive pressure source 74 by the actuation of the electromagnetic valve 70 . The air supply path 31 can supply air to the gripping cylinder 34 and the pusher cylinder 37 (flow path switching valve 39). That is, the air supply path 31 is also used for supplying air to the gripping mechanism 32 and the pusher mechanism 35 .

The control device 80 includes a CPU 81, a ROM 82, an HDD 83, a RAM 84, and an input/output interface 85, as shown in FIG. These are electrically connected via a bus 86 . An image signal from the mark camera 66 , an image signal from the parts camera 68 , and the like are input to the control device 80 via an input/output interface 85 . On the other hand, from the control device 80, drive signals to each device such as the component supply device 12, the substrate conveying device 16, the substrate holding device 18, the lead processing device 19, the drive signal to the moving mechanism 60, the head 20 (elevating and lowering A drive signal to the mechanism 22 and the rotating mechanism 24 ), a drive signal to the electromagnetic valve 70 , and the like are output via the input/output interface 85 .

The following is a detailed description of the pusher mechanism 35 of the part chucking device 30. FIG. 4 is an external view of the pusher mechanism 35 of the component chuck device 30, and FIG. FIG. 5 shows cross-sectional views of the pusher mechanism 35 in FIG. Note that FIG. 5(a) is mainly used for explaining the flow path switching valve 39, FIG. 5(b) is mainly used for explaining the pusher cylinder 37, and FIGS. It is used for explaining the lock member 57 that For convenience of illustration, FIG. 5(a) includes some elements that do not appear in the AA cross section of FIG.

The flow path switching valve 39 includes an air flow path 40 having a supply port 40a connected to the air supply path 31, and a negative pressure spool chamber 45 connected to the air flow path 40 and in which a negative pressure spool 44 slides vertically. , and a positive pressure spool chamber 48 connected to the air flow path 40 and in which a positive pressure spool 47 slides vertically.

The negative pressure spool chamber 45 is a cylindrical space, and an input port 45a into which air is input from the air flow path 40 is formed at the upper end in the axial direction. In addition, the negative pressure spool chamber 45 has an output port 45b connected to the negative pressure supply passage 41a, an atmospheric release port 45c connected to the outside (released to the atmosphere), and a branch outlet branched from the negative pressure supply passage 41a. A branch passage communication port 45d connected to the passage 41b is formed. Although the output port 45b and the branch passage communication port 45d are elements that do not appear in the AA cross section, they are illustrated in FIG. 5(a).

The negative pressure spool 44 has a diameter that allows it to slide in the negative pressure spool chamber 45, and has a stepped shaft shape with a first small diameter portion 44a and a second small diameter portion 44b formed at two locations in the axial direction. It is a member. The negative pressure spool 44 has a concave portion formed at its upper end. A spring 46 that biases the negative pressure spool 44 downward is arranged between the bottom surface of the recess and the upper end surface of the negative pressure spool chamber 45 . Further, a through hole 44c is formed that communicates with an opening provided in the bottom surface of the concave portion of the negative pressure spool 44 and penetrates the first small diameter portion 44a in the radial direction. When negative pressure is not input from the air passage 40 to the input port 45a (including when positive pressure is input), the negative pressure spool 44 is pushed downward in the negative pressure spool chamber 45 by the bias of the spring 46. (Fig. 5(a)). At this time, the negative pressure spool 44 blocks the communication between the through hole 44c and the output port 45b, and communicates the air release port 45c and the branch passage communication port 45d via the second small diameter portion 44b. Therefore, the inside of the negative pressure supply channel 41a and the inside of the branch channel 41b become atmospheric pressure. Further, when the negative pressure from the air flow path 40 is input to the input port 45a, the negative pressure spool 44 moves upward against the bias of the spring 46 and moves upward in the negative pressure spool chamber 45. located (see FIG. 6). At this time, the negative pressure spool 44 communicates the through hole 44c with the output port 45b through the first small diameter portion 44a, and blocks communication between the atmosphere release port 45c and the branch passage communication port 45d. As a result, the input port 45a and the output port 45b are communicated with each other, and the pressure in the negative pressure supply channel 41a and the branch channel 41b becomes negative.

The positive pressure spool chamber 48 is a cylindrical space, and an input port 48a into which air from the air flow path 40 is input is formed at the axial lower end. Further, the positive pressure spool chamber 48 is formed with an output port 48b connected to the positive pressure supply path 41c and an atmosphere release port 48c connected (released to the atmosphere) to the outside. Although the output port 48b is an element that does not appear in the AA cross section, it is illustrated in FIG. 5(a).

The positive pressure spool 47 is a stepped shaft-shaped member having a diameter that allows it to slide in the positive pressure spool chamber 48 and having a small diameter portion 47a formed in the center in the axial direction. The positive pressure spool 47 has a concave portion formed at its upper end. A spring 49 that biases the positive pressure spool 47 downward is arranged between the bottom surface of the recess and the upper end surface of the positive pressure spool chamber 47 . When the positive pressure from the air passage 40 is not input to the input port 48a (including when negative pressure is input), the positive pressure spool 47 is biased by the spring 49 to move the positive pressure spool chamber 48 inside the positive pressure spool chamber 48. It is located below (FIG. 5(a)). At this time, the positive pressure spool 47 blocks the communication between the input port 48a and the output port 48b, and communicates the output port 48b and the atmosphere release port 48c via the small diameter portion 47a. Therefore, the inside of the positive pressure supply path 41c becomes the atmospheric pressure. The positive pressure spool 47 moves upward against the force of the spring 49 and is positioned upward in the positive pressure spool chamber 48 when positive pressure is input from the air passage 40 to the input port 48a. (See FIG. 8). At this time, the positive pressure spool 47 communicates between the input port 48a and the output port 48b, and blocks communication between the output port 48b and the air release port 48c. As a result, the inside of the positive pressure supply path 41c becomes a positive pressure.

The pusher cylinder 37 includes a hollow cylindrical first piston 51 that slides vertically within the cylinder, a second piston 52 that slides vertically within the first piston 51, and the second piston 52 integrally. and a piston rod 53 extending downward through the first piston 51 and the pusher cylinder 37 . The pusher member 36 is attached to the lower end (tip) of the piston rod 53 via a connection plate 36a (see FIG. 2). The first piston 51 has a stepped portion in which the outer diameter of the lower side in the axial direction is one step smaller than the outer diameter of the upper side. A first spring 54 that biases the first piston 51 upward is arranged between the lower surface of the stepped portion and the bottom surface inside the pusher cylinder 37 . An annular end plate 56 having an opening 56 a formed in the center is attached to the upper end of the first piston 51 . The second piston 52 has a concave portion formed at its upper end. A second spring 55 is arranged between the bottom surface of the recess and the bottom surface of the end plate 56 to bias the second piston 52 (the piston rod 53 and the pusher member 36) downward. The interior of the pusher cylinder 37 is partitioned by the first piston 51 into a lower negative pressure chamber 37a and an upper positive pressure chamber 37b (see FIG. 6). The negative pressure chamber 37a is connected to the negative pressure supply path 41a, and the positive pressure chamber 37b is connected to the positive pressure supply path 41c.

The first piston 51 has a slightly recessed recessed portion 51a formed in the upper portion of the outer peripheral surface over the entire circumference (see FIG. 2). The pusher cylinder 37 has a lock member 57 formed in a size to fit in the recessed portion 51a in the cylinder wall, and a movement passage 58 through which the lock member 57 can move is formed in the cylinder wall. One end of the movement passage 58 is a non-protruding position 58a where the locking member 57 does not protrude into the cylinder, and the other end is a protruding position 58b where the locking member 57 partially protrudes into the cylinder. The moving passage 58 is connected to the connecting passage 59 on the projecting position 58b side. The communication path 59 is connected to a communication supply path 41d connected to the communication path output port 40b of the air flow path 40, and the positive pressure or negative pressure of the air flow path 40 is supplied via the communication supply path 41d. Also, the air supplied to the communication path 59 acts on the inside of the moving path 58 from the projecting position 58b side. Therefore, when negative pressure acts on the moving passage 58, the lock member 57 is pulled out from the non-projecting position 58a and moves to the projecting position 58b, and when positive pressure acts on the moving passage 58, the locking member 57 is pushed out from the projecting position 58b. It moves to the non-protruding position 58a.

The second piston 52 and the piston rod 53 are integrally formed, and an in-rod flow path 53a is formed therein. One end of the in-rod flow path 53 a opens laterally below the piston rod 53 , and the other end opens laterally of the second piston 52 . Therefore, when the piston rod 53 moves downward and one end opening of the rod internal flow path 53a is exposed to the outside, the rod internal flow path 53a communicates with the outside (opens to the atmosphere).

The following is an explanation of the mounting operation of the component P by the component mounting apparatus 10 configured in this way, and the operation of the component chucking device 30 will be mainly described. The CPU 81 of the control device 80 first controls the moving mechanism 60 so that the head 20 (component chucking device 30 ) moves above the supply position of the component supplying device 12 . Next, the CPU 81 controls the head 20 so that the component chuck device 30 can grip the component P in a height position and orientation, and controls the solenoid valve 70 to supply a negative pressure from the negative pressure source 72 to hold the component. The part P is gripped by the chuck device 30 . FIG. 6 is an explanatory diagram showing how the component chucking device 30 operates when a negative pressure is supplied.

As shown in FIG. 6, when the negative pressure is supplied, the gripping mechanism 32 grips the part P by driving the gripping cylinder 34 so that the gripping claws 33a and 33b move from the standby position in the closing direction. The gripping mechanism 32 (gripping claws 33) grips the leads L of the component P. As shown in FIG. Therefore, the leads L can be properly guided to the holes H even if the leads L are slightly warped. In the pusher mechanism 35, since negative pressure is supplied to the air flow path 40, the negative pressure spool 44 is positioned above to connect the input port 45a and the output port 45b, and the positive pressure spool 47 is positioned below. The output port 48b and the atmosphere release port 48c are communicated. Therefore, the inside of the negative pressure supply passage 41a becomes negative pressure and the inside of the positive pressure supply passage 41c becomes atmospheric pressure, so the inside of the negative pressure chamber 37a of the pusher cylinder 37 becomes negative pressure and the inside of the positive pressure chamber 37b becomes atmospheric pressure. . As a result, the first piston 51 moves downward against the force of the first spring 54, and the first piston 51 moves downward at a position (lower end position) where the bottom surface of the first piston 51 contacts the bottom surface inside the pusher cylinder 37 (lower end position). Piston 51 stops. At this time, the recessed portion 51 a of the first piston 51 is positioned at the same height as the movement passage 58 .

When the first piston 51 moves downward, the second piston 52 (piston rod 53) is pushed down by the force of the second spring 55, so the pusher member 36 also moves downward. When the pusher member 36 comes into contact with the upper surface of the component P, it receives a reaction force from the component P gripped by the gripping mechanism 32, so that the second spring 55 contracts and the second piston 52 (piston rod 53) moves. Stop. Therefore, the pusher mechanism 35 maintains the state in which the pusher member 36 is in contact with the upper surface of the component P due to the biasing force of the second spring 55 . When the gripping mechanism 32 grips the lead L of the component P, the component P tends to tilt around the gripping position as a fulcrum. can be stabilized. Here, the component chuck device 30 (gripping mechanism 32) can grip a plurality of types of components P having different heights. In this embodiment, the second piston 52 (piston rod 53) stops when the pusher member 36 comes into contact with the upper surface of the component P. As shown in FIG. Therefore, the upper surface of the part P can be appropriately held regardless of the height of the part P held within the range of the stroke of the second piston 52 .

Further, since the inside of the communication supply passage 41 d connected to the connection passage output port 40 b of the air passage 40 becomes negative pressure, the inside of the communication passage 59 also becomes negative pressure, and the negative pressure acts on the moving passage 58 . As a result, the lock member 57 moves from the non-projecting position 58a to the projecting position 58b and partially projects into the cylinder. As described above, since the recessed portion 51a of the first piston 51 at the lower end position is at the same height position as the movement passage 58, a part of the lock member 57 protruding from the projecting position 58b enters the recessed portion 51a. . Thereby, the first piston 51 is locked at the lower end position.

In addition, an opening at one end of the rod internal flow path 53a is exposed to the outside, and the rod internal flow path 53a is exposed to the atmosphere. Therefore, the atmospheric pressure is introduced into the space R below the second piston 52 within the first piston 51 . Here, it is difficult to seal the portion where the piston rod 53 penetrates the first piston 51 without leaking. In that case, the second piston 52 (piston rod 53) is lowered not only by the biasing force of the second spring 55 but also by the negative pressure, so there is a possibility that the pressing force of the pusher member 36 will be excessive. In the present embodiment, by introducing the atmospheric pressure into the space R from the rod-internal channel 53a, the negative pressure in the space R is suppressed, thereby preventing such an excessive pressing force from being generated. be. As a result, the pusher mechanism 35 can lightly press the upper surface of the component P with an appropriate force, so that the posture of the component can be properly maintained.

When the component chucking device 30 chucks the component P, the CPU 81 controls the moving mechanism 60 so that the head 20 (the component chucking device 30) moves above the mounting position of the base material S, and the lead L of the component P is attached to the base material. The head 20 is controlled so that it can be inserted into the hole H of S in a height position and orientation. The CPU 81, for example, lowers the head 20 to a height where the tip of the lead L is directly above the hole H (a height where the tip fits into the hole H). Then, the CPU 81 controls the electromagnetic valve 70 so as to stop supplying the negative pressure from the negative pressure source 72 and switch to positive pressure so that the lead L is inserted into the hole H by the part chucking device 30 . FIG. 7 is an explanatory diagram showing how the component chucking device 30 operates when the supply of negative pressure is stopped.

As shown in FIG. 7, when the supply of negative pressure is stopped, the gripping mechanism 32 enters a release state in which the gripping of the component P by the gripping claws 33a and 33b is released. In the pusher mechanism 35, since no negative pressure is supplied to the air flow path 40, the negative pressure spool 44 is moved downward in the negative pressure spool chamber 45 by the urging of the spring 46 to open the atmosphere release port 45c and the branch passage communication port 45d. communicate with. The position of the positive pressure spool 47 is the same as in FIG. Therefore, the inside of the negative pressure supply passage 41a changes from the negative pressure to the atmospheric pressure, and the inside of the positive pressure supply passage 41c remains at the atmospheric pressure. becomes. Also, although the supply of negative pressure to the communication supply path 41d and the communication path 59 is stopped, since positive pressure does not act on the movement path 58, the lock member 57 remains at the projecting position 58b. Therefore, the locking of the first piston 51 is maintained, and the first piston 51 does not move upward due to the biasing force of the first spring 54 . As a result, the pusher member 36 continues to abut on the component P even when the supply of negative pressure is stopped (when switching from negative pressure to positive pressure), so that the component P can be appropriately prevented from falling down. . Even in the case where the gripping claws 33a and 33b are opened when a positive pressure is supplied, the gripping force is reduced when the negative pressure is switched to the positive pressure, so that the same effect can be obtained.

On the other hand, since the reaction force from the part P disappears due to the release of the grip, the second spring 55 expands and the second piston 52 (piston rod 53) moves downward. That is, since the pusher member 36 is moved downward by the force of the second spring 55 to push out the component P, the lead L can be inserted into the hole H. As shown in FIG. As described above, in the state after the supply of the negative pressure is stopped, the pusher member 36 is pushed downward while keeping contact with the upper surface of the component P. can be inserted into The amount of protrusion (stroke amount) of the piston rod 53 is set to an amount that can secure the amount of extrusion of the pusher member 36 necessary for inserting the lead L into the hole H even for the component P with the lowest height. .

When the positive pressure from the positive pressure source 74 is supplied to the component chucking device 30 , the CPU 81 controls the lead processing device 19 to process the lead L to attach the component P to the base material S. FIG. 8 is an explanatory diagram showing how the component chucking device 30 operates when positive pressure is supplied.

As shown in FIG. 8, even if the positive pressure is supplied, the gripping claws 33a and 33b of the gripping mechanism 32 remain in the released state (positioned at the standby position). Since positive pressure is supplied to the air flow path 40 of the pusher mechanism 35, the positive pressure spool 47 is positioned above the positive pressure spool chamber 48 to communicate the input port 48a and the output port 48b. The position of the negative pressure spool 44 does not change from that shown in FIG. Therefore, the inside of the negative pressure supply passage 41a remains at the atmospheric pressure, and the inside of the positive pressure supply passage 41c changes from the atmospheric pressure to the positive pressure. The pressure inside 37b becomes positive. The positive pressure introduced into the positive pressure chamber 37 b acts on the upper surfaces of the first piston 51 and the end plate 56 . Also, the introduced positive pressure air flows into the first piston 51 through the opening 56 a of the end plate 56 , so positive pressure acts on the upper surface of the second piston 52 . Therefore, downward force acts on both the first piston 51 and the second piston 52 . Also, since the positive pressure is supplied to the communication supply path 41d and the communication path 59 and acts on the movement path 58, the lock member 57 moves from the projecting position 58b to the non-projecting position 58a. Therefore, the lock member 57 is withdrawn from the recessed portion 51a of the first piston 51, and the lock of the first piston 51 is released. However, since a downward force acts on the first piston 51, the first piston 51 remains at the lower end position without rising. In this embodiment, by supplying positive pressure, a downward force is applied to the first piston 51 and the second piston 52. Therefore, in addition to the urging force of the second spring 55, the pusher member is moved by the force applied by the positive pressure. 36 can be extruded. Therefore, the pusher member 36 can press the part P with a greater force than when the negative pressure is supplied. Therefore, even if it is difficult to insert the lead L into the hole H because the lead L is warped or the like, the lead L can be pushed into the hole H appropriately. Here, when the lead processing device 19 processes the lead L, an upward force acts on the component P. As shown in FIG. In this embodiment, since the pusher member 36 presses the component P with a large force by supplying positive pressure, it is possible to appropriately prevent the component P from being lifted when the lead L is processed. That is, it is possible to stabilize the posture of the component when the lead L is processed.

When the bending of the lead L is completed, the CPU 81 controls the solenoid valve 70 so that the air supply path 31 (air flow path 40) is open to the atmosphere. As a result, in the pusher mechanism 35, the positive pressure spool 47 moves downward in the positive pressure spool chamber 48 due to the biasing force of the spring 49, thereby communicating the output port 48b and the atmosphere release port 48c. The position of the negative pressure spool 44 does not change from that shown in FIG. Therefore, the pressure inside the negative pressure supply passage 41a remains at atmospheric pressure, and the pressure inside the positive pressure supply passage 41c changes from the positive pressure to the atmospheric pressure. becomes. Since the lock of the first piston 51 has already been released, the first piston 51 is moved upward by the force of the first spring 54 and returns to the initial position (see FIG. 5).

Here, correspondence relationships between the components of the present embodiment and the components of the present invention will be clarified. The component chucking device 30 of this embodiment corresponds to the component chucking device of the present invention, the gripping mechanism 32 corresponds to the gripping mechanism, the pusher member 36 corresponds to the holding member, and the pusher mechanism 35 corresponds to the holding mechanism. In addition, the pusher cylinder 37 corresponds to the cylinder, and the channel switching valve 39 corresponds to the channel switching portion. Further, the recessed portion 51a corresponds to the recessed portion, the locking member 57 corresponds to the locking member, the movement path 58 corresponds to the movement path, and the communication path 59 corresponds to the communication path. Also, the moving mechanism 60 corresponds to the moving mechanism.

According to the component chucking device 30 described above, the pusher member 36 can hold the posture of the component P both in the state in which the negative pressure is being supplied and in the state after the supply of the negative pressure is stopped (at the time of switching). The pusher mechanism 35 is configured to operate as As a result, even if the gripping mechanism 32 stops gripping the component P due to the supply of the negative pressure being stopped, the posture of the component P can be maintained, so that the posture of the component P being mounted can be stabilized. can. Since the component chucking device 30 is detachably attached to the head 20 in the component mounting device 10, the same effects as those of the component chucking device 30 can be obtained.

In the component chucking device 30, the pusher member 36 presses the component P from above regardless of whether the positive pressure or the negative pressure is supplied. Therefore, the upper surface of the component P can be supported, and the posture of the component P can be stabilized. The component chuck device 30 is configured such that the pressing force of the pusher member 36 is greater when positive pressure is supplied than when negative pressure is supplied. Therefore, when the negative pressure is supplied, it is possible to prevent the pusher member 36 from pushing the gripped component P more than necessary. Further, when the positive pressure is supplied, it is possible to prevent the part P from being lifted up when the lead L is processed.

The pusher mechanism 35 of the component chucking device 30 also includes a pusher cylinder 37 that moves the pusher member 36 up and down, and a channel switching valve 39 that switches between supply of positive pressure and negative pressure to the pusher cylinder 37 . The pusher cylinder 37 includes a hollow cylindrical first piston 51 that slides vertically within the cylinder, a second piston 52 that slides vertically within the first piston 51, and the second piston 52 integrally. and a piston rod 53 formed in the . The first piston 51 moves to the lower end position (predetermined position) against the force of the first spring 54 when the negative pressure in the negative pressure chamber 37a becomes negative pressure, and maintains the lower end position when the positive pressure in the positive pressure chamber 37b becomes positive pressure. . In addition, the second piston 52 (piston rod 53) moves downward due to the movement of the first piston 51 due to the bias of the second spring 55, and pushes the pusher member 36. When the pressure in the positive pressure chamber 37b becomes positive, the second piston 52 (piston rod 53) The pusher member 36 is pushed out by the positive pressure in addition to the urging of the spring 55 . Therefore, the pusher mechanism 35 can be made compact by disposing the second piston 52 inside the first piston 51 to prevent the pusher cylinder 37 from becoming large.

In addition, the first piston 51 of the component chuck device 30 has a recessed portion 51 a formed in the sliding surface with the pusher cylinder 37 . The pusher cylinder 37 is provided with a lock member 57 having a size that allows it to enter the recessed portion 51a. A moving passage 58 is formed to move the . When negative pressure acts on the movement passage 58, the lock member 57 moves to the projecting position 58b and enters the recess 51a of the first piston 51, thereby locking the first piston 51. As shown in FIG. Further, when a positive pressure acts on the movement passage 58, the locking member 57 moves to the non-protruding position 58a and retreats from the recessed portion 51a, thereby unlocking the first piston 51. As shown in FIG. Therefore, the first piston 51 can be locked by the lock member 57 even when the negative pressure is no longer supplied (atmospheric pressure). Therefore, the pusher mechanism 35 can continue to hold the posture of the component P even during switching from negative pressure to positive pressure.

Further, the pusher mechanism 35 moves the second piston 52 (piston rod 53) downward along with the movement of the first piston 51 by the force of the second spring 55 until the pusher member 36 contacts the upper surface of the component P. When the pusher member 36 comes into contact with the upper surface of the component P, the second spring 55 is contracted to hold the position of the second piston 52 (piston rod 53) when it comes into contact with the component P. Therefore, the pusher member 36 can be brought into light contact with the part P even when any part P is gripped among a plurality of types of parts P having different heights. In other words, it is possible to appropriately handle posture maintenance of a plurality of types of parts P.

Also, the holding mechanism 32 and the pusher mechanism 35 of the component chucking device 30 are supplied with negative pressure from the same negative pressure source 72 . Therefore, in the component chucking device 30, the supply pressure to the pusher mechanism 35 is also switched at the timing when the gripping mechanism 32 releases the gripping of the component P. Therefore, after the supply of the negative pressure is stopped, the attitude of the component P is changed. High need to keep.

It goes without saying that the present invention is not limited to the above-described embodiments, and can be implemented in various forms as long as they fall within the technical scope of the present invention.

For example, in the above-described embodiment, the pusher cylinder 37 is provided with the first piston 51, the second piston 52 (piston rod 53), the first spring 54, and the second spring 55. It is not something that can be done. Any configuration may be used as long as the pusher member 36 operates to hold the part P both in the state where the negative pressure is being supplied and in the state after the negative pressure is stopped (at the time of switching). In addition, although the rod-internal channel 53a is provided inside the second piston 52 and the piston rod 53, the sealing performance between the piston rod 53 and the first piston 51 is improved, and the rod-internal channel 53a is not provided. good too. Further, the first piston 51 descends to the lower end position when negative pressure is supplied, but is not limited to this. may be lowered to the lower end position when is supplied. Further, the pusher member 36 may press the component P with the same pressing force when the negative pressure is supplied and when the positive pressure is supplied.

In the above-described embodiment, the pusher mechanism 35 that abuts the pusher member 36 on the top surface of the component P is used as a holding mechanism to hold the posture of the component P. Any possible mechanism may be used. For example, using one or more pairs of claws that can be opened and closed, such as the gripping mechanism 32, the claws can hold the part both with the negative pressure applied and after the negative pressure is turned off. can be configured to

Although the first piston 51 is locked by the locking member 57 in the above-described embodiment, the present invention is not limited to this, and the first piston 51 may not be locked without the locking member 57 . However, in order to keep the pusher member 36 in contact with the upper surface of the component P, it is preferable to lock the first piston 51 .

In the above-described embodiment, the gripping mechanism 32 and the pusher mechanism 35 are supplied with positive pressure from the same positive pressure source 74 and negative pressure from the same negative pressure source 72, but the present invention is not limited to this. , positive pressure from a separate positive pressure source and negative pressure from a separate negative pressure source.

INDUSTRIAL APPLICABILITY The present invention can be used in the manufacturing industry of component chuck devices that attach gripped components to base materials.

Reference Signs List 10 component mounting device 12 component supply device 14 tape feeder 16 substrate conveying device 18 substrate holding device 19 lead processing device 20 head 22 lifting mechanism 24 rotation mechanism 30 component chuck device 31 air supply path 31a connection port 32 gripping mechanism 33, 33a, 33b gripping claw 34 gripping cylinder 35 pusher mechanism 36 pusher member 36a connection plate 37 pusher cylinder 37a negative pressure chamber 37b positive pressure chamber 39 channel switching valve, 40 air channel, 40a air supply port, 40b output port, 41a negative pressure supply channel, 41b branch channel, 41c positive pressure supply channel, 41d communication supply channel, 44 negative pressure spool, 44a first small diameter Portion 44b Second Small Diameter Portion 44c Through Hole 45 Negative Pressure Spool Chamber 45a Input Port 45b Output Port 45c Air Release Port 45d Branch Path Communication Port 46 Spring 47 Positive Pressure Spool 47a Small Diameter Portion 48 positive pressure spool chamber, 48a input port, 48b output port, 48c atmosphere release port, 49 spring, 51 first piston, 51a recessed portion, 52 second piston, 53 piston rod, 53a rod internal flow path, 54 first spring, 55 second spring, 56 end plate, 56a opening, 57 lock member, 58 movement passage, 58a non-projection position, 58b projection position, 59 communication path, 60 movement mechanism, 66 mark camera, 68 parts camera, 70 electromagnetic valve, 72 negative pressure source, 74 positive pressure source, 80 control device, 81 CPU, 82 ROM, 83 HDD, 84 RAM, 85 input/output interface, 86 bus, L lead, H hole, P parts, S substrate.

Claims (3)

A component chucking device for gripping a lead under a component with a lead and inserting it into a hole of a base material,
a gripping mechanism that opens and closes a pair of gripping claws;
a pusher mechanism that raises and lowers the pusher member with an air-driven cylinder ;
with
From a state in which the gripping mechanism grips only the leads by the gripping claws to hold the component with the leads, the gripping claws are opened and the pusher mechanism moves the component with the leads downward with respect to the gripping mechanism. configured to insert the lead into the hole in the substrate by moving and pushing out the lead;
In the gripping mechanism, the pusher mechanism moves the pusher member downward with respect to the gripping mechanism and contacts the top surface of the component with the lead, thereby pressing the top surface of the component with the lead . open the gripping claws
Parts chuck device. The component chucking device according to claim 1,
The gripping mechanism is capable of gripping multiple types of parts with leads having different heights,
The pusher mechanism moves the pusher member downward until the pusher member comes into contact with the component with the lead, and the pusher member pushes the component away from the state in which the upper surface of the component is pressed. is configured to increase the pressing force of
Parts chuck device. a head to which the component chucking device according to claim 1 or 2 is attached;
a moving mechanism for moving the head;
with
The moving mechanism moves the head to the mounting position of the component with the lead, and inserts the tip of the lead of the component with the lead held by the component chuck device into the hole of the base material . A component mounting device for mounting the component with leads on the base material by opening the gripping claws of the component chucking device and pushing out the component with leads by the pusher mechanism .

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