JP6689653B2 - Component mounting device and head unit for component mounting device - Google Patents

Description

  The present invention relates to a component mounting apparatus and a component mounting apparatus head unit, and more particularly to a component mounting apparatus including a holding head and a component mounting apparatus head unit.

  Conventionally, a component mounting apparatus including a holding head is known (for example, refer to Patent Document 1).

  The above-mentioned Patent Document 1 includes a first holding head and a second holding head that hold a component, and a moving mechanism section that applies a driving force to move the first holding head and the second holding head in the axial direction. A component mounting apparatus is disclosed. In this component mounting apparatus, the movement mechanism section is configured to apply a driving force to both the first holding head and the second holding head. Then, one of the first holding head and the second holding head is configured such that the lowering of the holding nozzle provided at the lower end is regulated during the lowering. Thereby, only the other of the first holding head and the second holding head is configured to descend.

JP, 2013-172004, A

  However, in the component supply device of Patent Document 1 described above, when one of the first holding head and the second holding head is lowered, the moving mechanism unit applies a driving force to both the first holding head and the second holding head. Therefore, a relatively large driving force is required. Therefore, there is a problem that the moving mechanism section becomes large.

  The present invention has been made to solve the above problems, and an object of the present invention is to provide a component mounting apparatus and a component mounting apparatus capable of suppressing an increase in size of a moving mechanism section. A head unit for use is provided.

In order to achieve the above-mentioned object, a component mounting apparatus according to a first aspect of the present invention includes a component supply unit that supplies a component, a component holding unit that mounts a component on a substrate, and a first holding unit that extends in the axial direction. Head and second holding head, first state in which axial movement is restricted near the rising end of the first holding head, and second state in which axial movement is restricted near the rising end of the second holding head. In the first state , the second holding head is selectively moved without moving the first holding head in the first state among the movement restricting mechanism section capable of switching between the first holding head and the second holding head. And a moving mechanism section for selectively moving the first holding head in the axial direction without moving the second holding head in the second state.

In the component mounting apparatus according to the first aspect of the present invention, as described above, the first state in which the axial movement of the first holding head is restricted in the vicinity of the rising end and the axial movement of the second holding head in the vicinity of the rising end are controlled. A movement restricting mechanism portion capable of switching between a second state for restricting movement in the direction, and a first holding head in the first state among the first holding head and the second holding head, to move the first holding head in the axial direction. without selectively moved in the axial direction of the second holding head, in the second state, without moving the second holding head in the axial direction, a moving mechanism for moving the selectively axially a first holding head Section. Thus, the movement restricting mechanism section switches between the first state and the second state, whereby the moving mechanism section can selectively (one by one) move the first holding head or the second holding head. As a result, it is possible to suppress an increase in the driving force of the moving mechanism unit as compared with the case where the first holding head and the second holding head are moved simultaneously by the moving mechanism unit. For this reason, it is possible to prevent the movement mechanism section from increasing in size and to reduce the weight accordingly.

In the component mounting apparatus according to the first aspect described above, preferably, the movement mechanism unit moves the support member in the axial direction and a support member that selectively supports the first holding head and the second holding head from below. Accordingly, the first holding head and the second holding head is selectively supported from below by the support member, and a drive moving parts that are moved in the axial direction. According to this structure, the first holding head and the second holding heads selectively supported from below by the support member, so it moved in the axial direction by driving moving parts, the first holding head and the second holding head and , It is not necessary to engage with the supporting member, and it is easy to change from a state in which one of the first holding head and the second holding head is supported by the supporting member to a state in which the other of the first holding head and the second holding head is supported. Can be switched to.

  In this case, preferably, the first holding head and the second holding head each include a supported portion that is selectively supported by the support member and the movement restricting mechanism portion, and the first holding head and the second holding head respectively. One of the supported parts is configured to abut on the movement restricting mechanism part in the vicinity of the rising end in the axial direction to selectively restrict the movement in the axial direction. The first holding head and the second holding head The other supported portion is configured to be selectively moved in the axial direction while being supported by the support member from below. According to this structure, the movement restricting mechanism section can switch between the first holding head and the second holding head in the vicinity of the rising end, so that the movement restricting mechanism section does not interfere with the component at the time of switching. Can be suppressed.

  In the configuration in which the first holding head and the second holding head each include a supported portion, the supported portion is preferably provided near the upper ends of the first holding head and the second holding head, respectively. According to this structure, when the support member is moved by the drive unit arranged above the first holding head and the second holding head, the supported portion is provided near the upper end portion, so that the support member is long. Therefore, it is possible to prevent the support member from interfering with other configurations when the first holding head and the second holding head are lowered.

  The component mounting apparatus according to the first aspect preferably further includes a biasing member that biases the first holding head and the second holding head downward. According to this structure, the biasing member can lower the first holding head and the second holding head more reliably.

  In the component mounting apparatus according to the first aspect, preferably, the movement restricting mechanism section restricts the axial movement of the first holding head or the second holding head, the first holding head by the restricting member, and A regulation switching unit that selectively switches regulation of movement of the second holding head in the axial direction. According to this structure, the regulation switching unit can easily and selectively switch regulation of the axial movement of the first holding head and the second holding head by the regulation member.

A head unit for a component mounting apparatus according to a second aspect of the present invention holds a component and mounts the component on a substrate, and at the same time, a first holding head and a second holding head extending in the axial direction, and a rise of the first holding head. A first state in which a movement in the axial direction is regulated near the end and a second state in which a movement in the axial direction is regulated near the raised end of the second holding head can be switched; and a first holding among head and the second holding head, in the first state, without moving the first holding head in the axial direction, selectively moved in the axial direction of the second holding head, in the second state, the second A moving mechanism section that selectively moves the first holding head in the axial direction without moving the holding head in the axial direction .

In the second component mounting apparatus for head units according to aspects of the present invention, as hereinabove described, the first state for restricting the movement in the axial direction on the rising edge near the first holding head, rising edge of the second holding head In the first state of the first holding head and the second holding head, the first holding head is moved in the axial direction in the first holding head and the second holding head, in which the second holding head can switch between a second state in which the second holding head restricts movement in the axial direction. without moving the selectively moved in the axial direction of the second holding head, in the second state, moves the second holding head without moving in the axial direction, selectively axially a first holding head And a moving mechanism section for moving the moving mechanism. Thus, the movement restricting mechanism section switches between the first state and the second state, whereby the moving mechanism section can selectively (one by one) move the first holding head and the second holding head. As a result, it is possible to suppress an increase in the driving force of the moving mechanism unit as compared with the case where the first holding head and the second holding head are moved simultaneously by the moving mechanism unit. Therefore, it is possible to prevent the moving mechanism section from increasing in size.
A component mounting apparatus according to a third aspect of the present invention includes a component supply unit configured to supply a component, a component holding a component to mount the component on a substrate, and a first holding head and a second holding head extending in an axial direction. A movement restricting mechanism section capable of switching between a first state that restricts the axial movement of the first holding head and a second state that restricts the axial movement of the second holding head, a first holding head, and Of the second holding heads, a movement mechanism section that selectively moves the second holding head in the axial direction in the first state and selectively moves the first holding head in the second state in the axial direction. A plurality of first holding heads and a plurality of second holding heads are provided, and the moving mechanism unit is provided for each set of the first holding head and the second holding head, and the plurality of first holding heads and the plurality of first holding heads are provided. The second holding head is Each other and are arranged in a row.
In this case, preferably, the movement restricting mechanism portion has a plurality of teeth and a recess provided between the teeth, and the teeth and the recess are arranged in a predetermined direction in which the first holding head and the second holding head are arranged. A regulating member arranged side by side and formed in a comb shape; and a regulating member drive section that switches between the first state and the second state by reciprocating the regulating member in a predetermined direction at a constant pitch, In the first state, the first holding head is selectively restricted from moving in the axial direction due to the tooth portions coming into contact with the lower portion, and is arranged inside the recess in the second state in a plan view. Is configured to be selectively movable in the axial direction, and the second holding head is disposed inside the recess in the plan view of the first state, thereby selectively moving in the axial direction. Is possible and in the second state the teeth There is movement to selectively axially and is configured to be restricted by abutment from below.
In the component mounting apparatus according to the third aspect, preferably, the component supply unit is provided with a plurality of component holding units, and the plurality of component holding units are arranged in a predetermined direction in which the first holding head and the second holding head are arranged. The plurality of first holding heads are arranged at a predetermined pitch, the plurality of first holding heads are arranged at a predetermined pitch, and the plurality of second holding heads are arranged at a predetermined pitch.

  According to the present invention, as described above, it is possible to provide the component mounting apparatus and the component mounting apparatus head unit capable of suppressing the movement mechanism section from increasing in size.

FIG. 1 is a plan view showing a schematic configuration of a component mounting device according to an embodiment of the present invention. FIG. 1 is a front view showing a schematic configuration of a component mounting device according to an embodiment of the present invention. FIG. 3 is a perspective view showing the head unit in the first state of the component mounting apparatus according to the embodiment of the present invention. FIG. 4 is a perspective view showing a state in which the head unit of FIG. 3 is cut along line 200-200. It is a figure showing the head unit in the 2nd state of the component mounting device by one embodiment of the present invention. FIG. 6 is a sectional view taken along the line 300-300 in FIG. FIG. 6 is a perspective view showing a regulation member of the head unit of the component mounting apparatus according to the embodiment of the present invention. FIG. 6 is a diagram for explaining a flow of a suction operation of a component of the head unit according to the embodiment of the present invention. It is a top view showing a modification of a regulation member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Structure of component mounting device)
The structure of the component mounting apparatus 100 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 8.

  The component mounting apparatus 100 according to the present embodiment is a device for mounting a component E (electronic component) such as an IC, a transistor, and a capacitor on a substrate P, as shown in FIGS. 1 and 2. Moreover, the component mounting apparatus 100 includes a base 1, a substrate transport unit 2, a component supply unit 3, and a head unit 4. The head unit 4 is an example of the "head unit for component mounting apparatus" in the claims.

  In this specification, the loading / unloading direction of the substrate P is the X direction. Further, a direction orthogonal (crossing) to the X direction on the horizontal plane is defined as the Y direction. Further, a direction orthogonal to the X direction and the Y direction is the Z direction. The X direction is an example of the “predetermined direction” in the claims.

  The substrate transfer unit 2 is arranged on the base 1 as shown in FIG. In addition, the substrate transport unit 2 is configured to transport the substrate P in the X direction (from the X1 direction side to the X2 direction side). Specifically, the substrate transfer section 2 is arranged on the base 1. The board transfer unit 2 also has a pair of conveyors 2a extending in the transfer direction (X direction) of the board P. The pair of conveyors 2a has a function of receiving the substrate P from the upstream side (X1 direction side) and transporting it to a predetermined work position, and holding the substrate P at the work position. In addition, the pair of conveyors 2a has a function of carrying out the mounted substrate P to the downstream side (X2 direction side) after the mounting of the component E is completed.

  A plurality of tape feeders 3 a are arranged in the component supply unit 3. A tape (not shown) in which components E such as ICs, transistors and capacitors are stored is attached to the tape feeder 3a. Each tape feeder 3a is configured to supply the component E to a predetermined component supply position (see FIG. 1) near the substrate transport unit 2 while intermittently feeding out the tape. The plurality of tape feeders 3a are arranged side by side at a pitch L in the X direction. Therefore, the components E supplied from the plurality of tape feeders 3a are arranged in a row at the pitch L in the X direction at the component supply position where they are suctioned (held) by the suction nozzles 40b of the head unit 4 described later. . A plurality of (one set of) tape feeders 3a arranged in the X direction are provided on the front side (Y2 direction side) and rear side (Y1 direction side) of the base 1, respectively. The tape feeder 3a is an example of the "component holder" in the claims.

  On the base 1, there is provided a component image pickup unit 1a that images and recognizes the component E sucked by the suction nozzle 40b from below. The component imaging unit 1a allows the component mounting apparatus 100 to recognize the holding (suction) state of the component E with respect to the suction nozzle 40b immediately before mounting, and mounts the component at an appropriate mounting position and mounting angle based on the recognition result. Becomes The component imaging unit 1a is provided on the front side (Y2 direction side) and the rear side (Y1 direction side) of the base 1, respectively.

  As shown in FIG. 1, the head unit 4 sucks the component E supplied from the tape feeder 3a to a predetermined component supply position, transfers the component E to a predetermined position (mounting position) on the substrate P, and transfers the component E to the substrate P. It has a function to be implemented in.

  The head unit 4 is configured to be movable above the substrate transport unit 2 (Z1 direction side) along the XY plane. Specifically, the head unit 4 is movably supported on the base 1 via a support portion 5 extending in the X direction. Further, the head unit 4 is moved in the X direction by rotating the ball screw shaft 6b by the servomotor 6a provided on the support portion 5. A pair of elevated frames 7 extending in the Y direction are arranged on the upper surface of the base 1, and the elevated frame 7 is provided with a servomotor 8a and a ball screw shaft 8b. Here, the support portion 5 straddles the elevated frame 7 in the X direction via a pair of fixed rails 7a. Then, the support portion 5 is moved in the Y direction along the fixed rail 7a on the elevated frame 7 by rotating the ball screw shaft 8b by the servo motor 8a. In this way, the head unit 4 is configured to be able to move to an arbitrary position in the XY plane on the base 1 by rotating the ball screw shafts 6b and 8b respectively.

  The head unit 4 has two types of suction heads (a first suction head 4a and a first suction head 4a and a first suction head 4a and a first suction head 4a and a first suction head 4a as shown in FIG. 2 suction head 4b), a housing 41 (see FIG. 1), a compression spring 42, a movement restricting mechanism section 43, a moving mechanism section 44, and a substrate imaging section 45. The first suction head 4a is an example of the "first holding head" in the claims. The second suction head 4b is an example of the "second holding head" in the claims. The compression spring 42 is an example of the "biasing member" in the claims.

  As shown in FIG. 3, each of the first suction head 4a and the second suction head 4b extends in the Z direction (axial direction) and has a substantially round bar shape. Further, each of the first suction heads 4a and the second suction heads 4b is provided in plurality (five in total). Further, the plurality of first suction heads 4a and the plurality of second suction heads 4b are arranged alternately in the X direction and arranged in one row. Further, the plurality of first suction heads 4a are arranged side by side in a row at a pitch L. That is, the plurality of first suction heads 4a are supplied from the component supply unit 3 (tape feeder 3a) and have a pitch L (see FIG. 1) at which the components E are arranged in a line at a predetermined component supply position. They are arranged at substantially equal pitches. Further, the plurality of second suction heads 4b are arranged side by side in one row at the pitch L. That is, the plurality of second suction heads 4b are arranged at a pitch substantially equal to the pitch L of the components E which are supplied from the component supply unit 3 (tape feeder 3a) and are arranged in a line. The first suction head 4a and the second suction head 4b have the same configuration. Further, the first suction head 4a and the second suction head 4b are configured to be able to move up and down in the Z direction at different timings by the movement mechanism portion 44 and the movement regulation mechanism portion 43. In short, the first suction head 4a and the second suction head 4b are configured to suck the component E at different timings.

  The first suction head 4a has a shaft 40a, a suction nozzle 40b, and a supported portion 40c. Since the second suction head 4b has the same configuration as the first suction head 4a as described above, each configuration of the first suction head 4a will be mainly described below and the second suction head 4a will be described below. The description of each component of 4b is given the same reference numeral as that of the first suction head 4a and is omitted.

  The shaft 40a extends in the Z direction. The suction nozzle 40b is removably attached to the lower end (Z2 direction side end) of the shaft 40a. An air passage connected to a pressure generator (not shown) mounted on the head unit 4 is formed inside the shaft 40a, and a negative pressure and a positive pressure are applied to the lower end of the adsorption nozzle 40b via the shaft 40a. It is possible to generate pressure. As a result, during the component mounting operation, the components E are individually sucked by the negative pressure generated at the tip (lower end) of the suction nozzle 40b, and a positive pressure is supplied to the suction nozzle 40b at the mounting position. Is mounted (mounted) on the substrate P.

  The supported portion 40c is provided on the upper end of the first suction head 4a. Specifically, the supported portion 40c is provided integrally with the shaft 40a at the upper end portion (Z1 direction side end portion) of the shaft 40a, and in the Y1 direction and the Y2 direction from the upper end portion of the shaft 40a, respectively. It is formed in the shape of a quadrangular prism that extends. Therefore, the first suction head 4a is formed in a T shape when viewed from the X direction. The supported portion 40c is configured to be selectively supported by the movement mechanism portion 44 (a support member 44a described later) and the movement regulation mechanism portion 43 (a regulation member 43c described later). One of the supported portions 40c of the first suction head 4a and the second suction head 4b is brought into contact with the movement restricting mechanism portion 43 from the upper side at an ascending end in the axial direction (Z direction) to selectively cause the axial direction ( The movement in the Z direction) is restricted. The other supported portion 40c of the first suction head 4a and the second suction head 4b is configured to be selectively moved in the axial direction while being supported by the support member 44a from below.

  Specifically, in the first state shown in FIGS. 3 and 4, the first suction head 4a is in contact with the movement restricting mechanism portion 43 from above, and the second suction head 4b is in contact with the support member 44a from below. It is supported. Further, in the second state shown in FIG. 5 in which the movement restricting mechanism portion 43 has moved from the first state and FIG. 6 which is a cross-sectional view taken along the line 300-300 in FIG. The head 4a is in contact with the movement regulation mechanism portion 43 from above, and the second suction head 4b is supported by the support member 44a from below. The first state is a state in which the movement of the first suction head 4a in the Z direction is restricted, and a state in which the second suction head 4b can move in the Z direction. The second state is a state in which the first suction head 4a can move in the Z direction and the movement of the second suction head 4b in the Z direction is restricted.

  As shown in FIGS. 1 and 2, a first suction head 4 a and a second suction head 4 b are installed in the housing 41 so as to be movable in the Z direction (vertical direction) with respect to the housing 41. Further, the housing 41 is supported by the supporting portion 5, and is configured to be movable to an arbitrary position in the XY plane on the base 1 by the servomotors 6a and 8a. Further, as shown in FIGS. 3 to 5, the housing 41 is provided with a flat plate portion 41a extending in the XY direction and through which the first suction head 4a and the second suction head 4b are inserted.

  As shown in FIGS. 3 to 5, the compression spring 42 is provided for each of the plurality of first suction heads 4a and the plurality of second suction heads 4b. The compression spring 42 is configured to urge the first suction head 4a (second suction head 4b) downward. Specifically, the compression spring 42 has the first suction head 4a (second suction head 4b) inserted in a compressed state. Further, the upper end of the compression spring 42 is arranged so as to contact the lower surface of the flat plate portion 41a, and the lower end of the compression spring 42 is held at a predetermined position of the shaft 40a of the first suction head 4a (second suction head 4b). ing. Further, the compression spring 42 is configured so that the compressed state is always maintained. Therefore, the compression spring 42 is configured to constantly urge the first suction head 4a (second suction head 4b) to the flat plate portion 41a downward (Z2 direction).

The movement restricting mechanism unit 43 has a first state (see FIGS. 3 and 4) that restricts the movement of the first suction head 4a in the Z direction and a second state that restricts the movement of the second suction head 4b in the Z direction. The state (see FIG. 5) can be switched. In addition, the movement restricting mechanism portion 43 includes an air cylinder 43a, a coupling drive member 43b, and a restricting member 43c. The air cylinder 43a is an example of the " restriction member driving section" in the claims. The air cylinder 43a and the connecting drive member 43b are examples of the "regulation switching unit" in the claims.

  The air cylinder 43a is fixedly installed in the housing 41 (see FIG. 1). The connection drive member 43b connects the air cylinder 43a and the restriction member 43c. The air cylinder 43a is configured to reciprocate the restriction member 43c in the X direction at a pitch of L / 2 via the connection drive member 43b. As a result, the air cylinder 43a is configured to switch between the first state and the second state. Specifically, in the first state shown in FIGS. 3 and 4, the restricting member 43c is moved to the air cylinder 43a side (X1 direction side) most, so that the space between the air cylinder 43a and the restricting member 43c is reduced. The distance is t. Further, in the second state shown in FIG. 5A, the regulation member 43c is moved by L / 2 in the X2 direction from the first state, and the distance between the air cylinder 43a and the regulation member 43c is t + L / 2. Has become.

  As shown in FIG. 7, the regulation member 43c has a plate shape extending in the XY directions. The restriction member 43c is arranged on the Y2 direction side of the shaft 40a (see FIGS. 3 and 4). In addition, as shown in FIG. 5B, the upper surface of the regulation member 43c is substantially the same as the lower surface of the supported portion 40c in a state where the first suction head 4a or the second suction head 4b is arranged at the rising end. They are arranged flush with each other (at the same height position) or slightly lower than the lower surface of the supported portion 40c.

  As shown in FIG. 7, the regulation member 43c has a plurality of tooth portions 431 and a plurality of recesses 432 provided between the tooth portions 431. The tooth portion 431 and the recessed portion 432 are provided on the supported portion 40c side (Y1 direction side) of the regulation member 43c (see FIG. 4). Further, the regulation member 43c is formed in a comb tooth shape by arranging a plurality of tooth portions 431 and a plurality of recessed portions 432 alternately in plan view (when viewed from the Z direction).

  The tooth portion 431 has a convex shape protruding in the Y1 direction. The distance from the center position in the X direction of the tooth portion 431 to the center position in the X direction of another adjacent tooth portion 431 is L. The distance from the center position of the tooth portion 431 in the X direction to the center position of the adjacent recessed portion 432 in the X direction is L / 2. Further, in the first state, the tooth portion 431 is in contact with the supported portion 40c (the Y2 direction side portion thereof) of the first suction head 4a (see FIG. 4) from below. In the second state, the tooth portion 431 is in contact with the supported portion 40c (the Y2 direction side portion thereof) of the second suction head 4b (see FIG. 5) from below. Since the tooth portion 431 (regulating member 43c) cannot move in the Z direction, when the supported portion 40c and the tooth portion 431 are in contact with each other, the first suction head 4a and the second suction head 4a. In the first state and the second state, the movement of 4b is restricted by the restriction member 43c from the rising end in the Z2 direction.

  The recessed portion 432 has a recessed shape that is recessed in the Y2 direction from the Y1 direction side end of the regulating member 43c. Further, in the recess 432, a part (the Y2 direction side part) of the supported part 40c of the second suction head 4b is arranged inside in the plan view of the first state (as viewed from the Z direction). Further, in the recess 432, a part (the Y2 direction side part) of the supported part 40c of the first suction head 4a is arranged inside in the plan view of the second state (as viewed from the Z direction). Therefore, since the inside of the recess 432 is a mere space, the first suction head 4a can move in the Z2 direction from the rising end without being hindered by the restriction member 43c in the second state. In addition, in the first state, the second suction head 4b can move in the Z2 direction from the rising end without being obstructed by the restriction member 43c.

The moving mechanism section 44 is provided for each of the first suction head 4a and the second suction head 4b. Further, as shown in FIGS. 3 and 4, the moving mechanism unit 44 selectively moves the second suction head 4b in the first state among the first suction head 4a and the second suction head 4b in the Z direction. In the second state, the first suction head 4a is selectively moved in the Z direction. The moving mechanism section 44 includes a support member 44a and a linear motor 44b. Incidentally, the linear motor 44b is an example of the "drive moving portion" in the claims.

  The support member 44a is configured to support the first suction head 4a or the second suction head 4b selected by the restriction member 43c from below. The linear motor 44b is configured to reciprocate the support member 44a in the Z direction. The linear motor 44b is configured to move the support member 44a in the Z direction to move the first suction head 4a and the second suction head 4b that are selectively supported by the support member 44a in the Z direction. Has been done. Further, as shown in FIG. 3, the linear motors 44b are arranged so as to be arranged in a plurality (five) in the X direction. Further, the plurality of linear motors 44b are arranged so as to be lined up in the X direction at the pitch L. The support members 44a are provided at the lower ends of the plurality of linear motors 44b one by one. That is, one set of the linear motor 44b and the support member 44a is arranged so as to be aligned in the X direction. Note that FIG. 4 shows only one set on the side closest to the air cylinder 43a (X1 direction side). Further, one set of the linear motor 44b and the support member 44a is a mechanism for moving a total of two suction heads, one first suction head 4a and one second suction head 4b adjacent to each other, in the Z direction. is there. Therefore, the five sets of the linear motors 44b and the support member 44a can move a total of ten suction heads in the Z direction. Further, a total of 10 suction heads (first suction head 4a and second suction head 4b) are independently movable in the Z direction.

  The support member 44a is arranged on the Y1 direction side of the shaft 40a. That is, the support member 44a is arranged on the opposite side of the shaft 40a from the side where the regulating member 43c is arranged. The support member 44a is connected to the linear motor 44b and has a vertical portion 441 that extends in the Z direction and a protruding portion 442 that projects from the lower end portion of the vertical portion 441 in the Y2 direction. The support member 44a is configured to support the supported portion 40c from below by the upper surface of the protruding portion 442.

  The board imaging unit 45 is fixedly installed in the housing 41 of the head unit 4, as shown in FIGS. 1 and 2. The board imaging unit 45 also has a function of imaging a fiducial mark (not shown) attached to the board P. The component mounting apparatus 100 is configured such that the board imaging unit 45 images a fiducial mark (not shown) on the board P from above to recognize the position and orientation of the board P. As a result, the suction nozzle 40b can be accurately positioned above the mounting position of the substrate P to mount components.

(Flow of component suction operation)
Next, the flow of the suction operation of the component E by the first suction head 4a and the second suction head 4b will be described with reference to FIGS. In the following, first, a rough flow of the suction operation of the component E will be described, and then the details will be described.

  First, the general flow of the suction operation of the component E will be described. First, in the first state, the suction nozzles 40b of the five second suction heads 4b simultaneously suction the five components E. Next, the regulation member 43c is moved to switch from the first state to the second state. Then, in the second state, the five suction parts 40b of the five first suction heads 4a simultaneously suck five parts E. After that, the head unit 4 shifts to an operation for mounting.

  Next, a detailed flow of the suction operation of the component E will be described. First, the head unit 4 is in the first state, as shown in FIG. The first suction head 4a and the second suction head 4b are located at the rising end. That is, the supported portion 40c of the first suction head 4a is in contact with the tooth portion 431 of the regulating member 43c from below, and the movement in the Z2 direction is regulated. Further, in the second suction head 4b, the supported portion 40c is arranged inside the concave portion 432 (see FIG. 4) in plan view (viewed from the Z direction), and can be moved in the Z2 direction. The housing 41 is moved in the XY plane on the base 1 by the servomotors 6a and 8a (see FIG. 1), so that the plurality of second casings are viewed in a plan view (viewed from the Z direction). The suction head 4b is moved to a position where the suction heads 4b and the plurality of components E overlap each other.

  From this state, as shown in FIG. 8B, the supporting member 44a is moved (lowered) in the Z2 direction by the linear motor 44b (see FIG. 4). At this time, the second suction head 4b moves in the Z direction by its own weight and the urging force of the compression spring 42 while maintaining the state of being in contact with the support member 44a. Since the movement of the first suction head 4a in the Z direction is regulated by the regulation member 43c, even if the support member 44a moves in the Z direction, the first suction head 4a maintains the same height position. When the second suction head 4b is lowered to the predetermined height position, the suction nozzle 40b sucks the component E. Then, the second suction head 4b is moved to the rising end again as shown in FIG. 8 (C).

  Next, as shown in FIG. 8D, the air cylinder 43a (see FIG. 3) moves the restricting member 43c in the X1 direction by L / 2 (see FIG. 5A) to move from the first state. Switch to the second state. That is, from the state in which the movement of the first suction head 4a is restricted and the state in which the second suction head 4b is movable, the state in which the first suction head 4a is movable and the state in which the second suction head 4b is moved. Switch to a state where movement is restricted. In short, the regulation member 43c is moved to switch from the state where the regulation member 43c (tooth portion 431) is in contact with the first suction head 4a to the state where it is in contact with the second suction head 4b. Then, the chassis 41 is moved in the XY plane on the base 1 by the servomotors 6a and 8a (see FIG. 1), so that the plurality of first units are viewed in a plan view (viewed from the Z direction). The suction head 4a is moved to a position where the suction heads 4a and the plurality of components E overlap each other.

  From this state, as shown in FIG. 8E, the support member 44a is moved (lowered) in the Z2 direction by the linear motor 44b. At this time, the first suction head 4a moves in the Z direction by its own weight and the urging force of the compression spring 42 while maintaining the state of being in contact with the support member 44a. Since the second suction head 4b is restricted from moving in the Z direction by the restriction member 43c, the second suction head 4b maintains the same height position even if the support member 44a moves in the Z direction. When the first suction head 4a is lowered to the predetermined height position, the suction nozzle 40b sucks the component E. Then, the first suction head 4a is moved to the rising end again. As described above, the suction operation of the component E by the first suction head 4a and the second suction head 4b is completed.

(Effect of this embodiment)
In this embodiment, the following effects can be obtained.

  In the present embodiment, as described above, the first state in which the axial movement of the first suction head 4a is regulated and the second state in which the axial movement of the second suction head 4b is regulated can be switched. Of the first suction head 4a and the second suction head 4b, the second suction head 4b is selectively moved in the axial direction in the first suction head 4a and the second suction head 4b. A moving mechanism section 44 for selectively moving the head 4a in the axial direction is provided. As a result, by switching the first state and the second state by the movement restricting mechanism unit 43, the moving mechanism unit 44 can selectively (one by one) move the first suction head 4a or the second suction head 4b. it can. As a result, it is possible to suppress an increase in the driving force of the moving mechanism unit 44 as compared with the case where the moving mechanism unit 44 simultaneously moves the first suction head 4a and the second suction head 4b. For this reason, it is possible to prevent the moving mechanism portion 44 (head unit 4) from increasing in size, and to reduce the weight accordingly.

  Further, in the present embodiment, as described above, the moving mechanism portion 44 has the support member 44a that selectively supports the first suction head 4a and the second suction head 4b from below, and the support member 44a in the axial direction. A linear motor 44b is provided which moves the first suction head 4a and the second suction head 4b, which are selectively supported from below by the support member 44a by moving them, in the axial direction. As a result, the first suction head 4a and the second suction head 4b, which are selectively supported from below by the support member 44a, are moved in the axial direction by the linear motor 44b, so that the first suction head 4a and the second suction head 4b. Need not be engaged with the support member 44a and the support member 44a supports one of the first suction head 4a and the second suction head 4b from the state of supporting the first suction head 4a and the second suction head 4b. It is possible to easily switch to a state of supporting the other.

  Further, in the present embodiment, as described above, the first suction head 4a and the second suction head 4b are provided with the supported portions 40c that are selectively supported by the support member 44a and the movement restricting mechanism portion 43, respectively. By bringing one of the supported portions 40c of the first suction head 4a and the second suction head 4b into contact with the movement restricting mechanism portion 43 in the vicinity of the rising end in the axial direction, the movement in the axial direction is selectively restricted. The second supported portion 40c of the first suction head 4a and the second suction head 4b is configured to be selectively moved in the axial direction while being supported by the support member 44a from below. . As a result, the movement restricting mechanism section 43 can switch between the first suction head 4a and the second suction head 4b near the rising end, so that the movement restricting mechanism section 43 interferes with the component E at the time of switching. Can be suppressed.

  Further, in the present embodiment, as described above, the supported portions 40c are provided near the upper end portions of the first suction head 4a and the second suction head 4b, respectively. Accordingly, when the support member 44a is moved by the drive unit disposed above the first suction head 4a and the second suction head 4b, the supported portion 40c is provided near the upper end portion, so that the support member 44a is It is possible to suppress the lengthening, and it is possible to suppress the support member 44a from interfering with other configurations when the first suction head 4a and the second suction head 4b are lowered.

  Further, in the present embodiment, as described above, the compression springs 42 that urge downward are provided on the first suction head 4a and the second suction head 4b, respectively. As a result, the compression spring 42 can more reliably lower the first suction head 4a and the second suction head 4b.

  Further, in the present embodiment, as described above, the movement restricting mechanism unit 43 includes the restriction member 43c that restricts the axial movement of the first suction head 4a or the second suction head 4b, and the first restriction member 43c. An air cylinder 43a and a connecting drive member 43b are provided to selectively switch the regulation of the movement of the suction head 4a and the second suction head 4b in the axial direction. Thereby, the air cylinder 43a and the connection drive member 43b can easily and selectively switch the regulation of the axial movement of the first suction head 4a and the second suction head 4b by the regulation member 43c.

  Further, in the present embodiment, as described above, the plurality of first suction heads 4a and the second suction heads 4b are provided, and the moving mechanism unit 44 is provided as a set of the first suction head 4a and the second suction head 4b. The plurality of first suction heads 4a and the plurality of second suction heads 4b are arranged alternately and side by side in one row. Accordingly, the adjacent first suction head 4a and second suction head 4b can be driven by one drive unit (motor or the like). Therefore, the number of drive units can be reduced as compared with the case where one drive unit is provided for one suction head, so that the movement mechanism unit 44 (head unit 4) is prevented from increasing in size. In addition to being able to do so, the weight can be reduced accordingly.

  Further, in the present embodiment, as described above, the movement restricting mechanism portion 43 has the plurality of teeth 431 and the recess 432 provided between the teeth 431, and the first suction head 4a and the second suction head 4b. The tooth portion 431 and the recessed portion 432 are arranged side by side in a predetermined direction in which is aligned, and the regulation member 43c formed in a comb tooth shape and the regulation member 43c are reciprocally moved in a predetermined direction at a constant pitch to thereby achieve the first state. And an air cylinder 43b for switching between the second state and the second state are provided. In the first state, the tooth portion 431 comes into contact with the first suction head 4a from below to selectively restrict the movement in the axial direction. In the plan view of the state, the second suction head 4b is arranged inside the recess 432 to be selectively movable in the axial direction, and the second suction head 4b is configured to have the recess 432 in the plan view of the first state. of It is configured such that it can be selectively moved in the axial direction by being disposed on the side, and in the second state, the tooth portion 431 abuts from below to selectively restrict the movement in the axial direction. . As a result, the tooth portion 431 and the concave portion 432 are arranged side by side in the predetermined direction in which the first suction head 4a and the second suction head 4b are arranged, so that one restricting member 43c (the tooth portion 431 and the concave portion 432) is moved in the predetermined direction. By reciprocating, the first state and the second state of the plurality of first suction heads 4a and the plurality of second suction heads 4b can be easily switched.

  Further, in the present embodiment, as described above, the component supply unit 3 is provided with the plurality of tape feeders 3a, and the plurality of tape feeders 3a are arranged in the predetermined direction in which the first suction head 4a and the second suction head 4b are arranged. The plurality of first suction heads 4a are arranged at the pitch L, the plurality of first suction heads 4a are arranged at the pitch L, and the plurality of second suction heads 4b are arranged at the pitch L. Thus, the plurality of first suction heads 4a and the plurality of second suction heads 4b can simultaneously suck the component E, so that the component E can be efficiently sucked.

[Modification]
In addition, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points. The scope of the present invention is shown not by the above description of the embodiments but by the scope of the claims, and further includes meanings equivalent to the scope of the claims and all modifications (modifications) within the scope.

  For example, in the above-described embodiment, an example in which a linear motor is used as the vertical drive mechanism that drives the first suction head and the second suction head in the vertical direction has been shown, but the present invention is not limited to this. In the present invention, other than the linear motor may be used as the vertical drive mechanism that drives the suction head in the vertical direction. For example, a vertical drive mechanism having a ball screw mechanism may be used.

  Further, in the above-described embodiment, an example in which five first suction heads and five second suction heads are provided has been described, but the present invention is not limited to this. In the present invention, each of the first suction head and the second suction head may be provided in four or less, or in six or more.

  Further, in the above-described one embodiment, an example in which the biasing member of the present invention is configured by the compression spring is shown, but the present invention is not limited to this. In the present invention, the biasing member of the present invention may be constituted by a rubber elastic member or the like other than the compression spring.

  Further, in the above-described one embodiment, an example in which the first suction head and the second suction head are arranged in one row has been shown, but the present invention is not limited to this. In the present invention, the first suction head and the second suction head may be arranged in a plurality of rows.

  Further, in the above-described one embodiment, an example in which the first suction heads and the second suction heads are arranged in a row has been shown, but the present invention is not limited to this. In the present invention, the first suction head and the second suction head may be arranged circumferentially (a so-called rotary type may be used).

  Further, in the above-described one embodiment, the example in which the components are sucked in the order of the second suction head and the first suction head has been shown, but the present invention is not limited to this. In the present invention, the components may be sucked in the order of the first suction head and the second suction head.

  Further, in the above-described one embodiment, an example in which the regulating member is configured in a comb tooth shape is shown, but the present invention is not limited to this. In the present invention, as in the modified example shown in FIG. 9, the restriction member 143 extends in the Y direction, the plurality of holes 143a through which the first suction head and the second suction head pass, and the X direction and the shaft. You may comprise so that it may have the hole part 143b which lets it pass.

  Further, in the above-described one embodiment, the example in which the tape feeder is used as the component holding portion has been shown, but the present invention is not limited to this. In the present invention, other than the tape feeder may be used as the component holder. For example, a component supply tray on which a large component is placed may be used as the component holder.

Further, in the above-described one embodiment, an example in which the air cylinder is used as the regulating member drive portion of the present invention has been shown, but the present invention is not limited to this. In the present invention, a member other than a linear motor may be used as the regulating member drive unit. For example, a drive mechanism having a ball screw mechanism or a linear motor may be used.

  In addition, in the above-described one embodiment, the first holding head (second holding head) of the present invention is an example in which the first suction head (second suction head) capable of sucking a component by negative pressure is used. The present invention is not limited to this. In the present invention, a gripping head capable of gripping (chucking) a component may be used as the first holding head (second holding head).

3 parts supply part 3a tape feeder (parts holding part)
4 Head unit (head unit for component mounting equipment)
4a First suction head (first holding head)
4b Second suction head (second holding head)
43 Movement Regulation Mechanism Section 43a Air Cylinder ( Regulation Member Drive Section, Regulation Switching Section)
43b Connection drive member (regulation switching part)
43c, 143 restricting member 44 moving mechanism 44a supporting member 44b linear motor (drive moving parts)
40c Supported part 42 Compression spring (biasing member)
431 Tooth portion 432 Recessed portion E component P substrate

Claims (10)

A parts supply unit that supplies parts,
A first holding head and a second holding head extending in the axial direction while holding the component and mounting the component on a substrate;
A first state for restricting the movement of the said axial on the rising edge near the first holding head, can switch and a second state for restricting movement of the said axial on the rising edge near the second holding head Movement control mechanism section,
Of the first holding head and the second holding head, in the first state, the second holding head is selectively moved in the axial direction without moving the first holding head in the axial direction. In the second state, the component mounting apparatus includes: a moving mechanism section that selectively moves the first holding head in the axial direction without moving the second holding head in the axial direction. . The moving mechanism section selects from below by a supporting member that selectively supports the first holding head and the second holding head from below, and by moving the supporting member in the axial direction, by the supporting member. to the being supported first holding head and the second holding head, and a drive moving parts that are moved in the axial direction, the component mounting apparatus according to claim 1. The first holding head and the second holding head each include a supported portion that is selectively supported by the support member and the movement restricting mechanism portion,
The supported portion of one of the first holding head and the second holding head comes into contact with the movement regulating mechanism portion in the vicinity of the rising end in the axial direction, so that the movement in the axial direction is selectively regulated. Is configured to
The other supported portion of the first holding head and the second holding head is configured to be selectively moved in the axial direction while being supported by the support member from below. Item 3. The component mounting apparatus according to item 2.   The component mounting apparatus according to claim 3, wherein the supported portions are provided near the upper ends of the first holding head and the second holding head, respectively.   The component mounting apparatus according to claim 1, further comprising a biasing member that biases each of the first holding head and the second holding head downward.   The movement restricting mechanism section restricts movement of the first holding head or the second holding head in the axial direction, and the shafts of the first holding head and the second holding head by the restricting member. The component mounting apparatus according to claim 1, further comprising a regulation switching unit that selectively switches regulation of movement in a direction. A first holding head and a second holding head extending in the axial direction while holding the component and mounting the component on a substrate;
A first state for restricting the movement of the said axial on the rising edge near the first holding head, can switch and a second state for restricting movement of the said axial on the rising edge near the second holding head Movement control mechanism section,
Of the first holding head and the second holding head, in the first state, the second holding head is selectively moved in the axial direction without moving the first holding head in the axial direction. In the second state, the component mounting apparatus includes: a moving mechanism section that selectively moves the first holding head in the axial direction without moving the second holding head in the axial direction. Head unit. A parts supply unit that supplies parts,
A first holding head and a second holding head extending in the axial direction while holding the component and mounting the component on a substrate;
A movement regulation mechanism section capable of switching between a first state in which the movement of the first holding head in the axial direction is regulated and a second state in which the movement of the second holding head in the axial direction is regulated.
Of the first holding head and the second holding head, the second holding head is selectively moved in the axial direction in the first state, and the first holding head is selectively moved in the second state. And a moving mechanism section for moving in the axial direction,
A plurality of the first holding heads and the second holding heads are provided,
The moving mechanism section is provided for each of the pair of the first holding head and the second holding head,
The component mounting apparatus, wherein the plurality of first holding heads and the plurality of second holding heads are alternately arranged in a line. The movement restricting mechanism section has a plurality of teeth and a recess provided between the teeth, and the teeth and the recess are arranged in a predetermined direction in which the first holding head and the second holding head are arranged. And a regulation member drive section which is arranged in a comb shape and which switches between the first state and the second state by reciprocating the regulation member in the predetermined direction at a constant pitch. Including,
In the first state, the first holding head is selectively restrained from moving in the axial direction by the tooth portions coming into contact with the tooth portion from below. By being arranged inside, it is configured to be selectively movable in the axial direction,
In the plan view of the first state, the second holding head can be selectively moved in the axial direction by being arranged inside the recess, and in the second state, the tooth portion is The component mounting apparatus according to claim 8, wherein the component mounting apparatus is configured so that the movement in the axial direction is selectively restricted by abutting from below. The component supply unit is provided with a plurality of component holders,
The plurality of component holders are arranged at a predetermined pitch in a predetermined direction in which the first holding head and the second holding head are arranged,
The plurality of first holding heads are arranged at the predetermined pitch,
The component mounting apparatus according to claim 8, wherein the plurality of second holding heads are arranged at the predetermined pitch.

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