JP2014207331A - Electronic component mounting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To further reduce device cost while obtaining various electronic component mounting forms.SOLUTION: A mounting head 13 comprises: a head base 20 which is provided to be movable in parallel relative to a surface of a substrate 10; a mounting operation unit 21 including a nozzle 31 for holding an electronic component and moving mechanisms 32 and 33 for vertically moving the nozzle along an axis in a vertical direction and rotationally moving the nozzle around the axis; and a control unit 22 including control means 41, 42 and 43 for controlling the moving mechanisms on the basis of an operation command. Various kinds of mounting operation units are prepared correspondingly to the number of nozzles or electronic components to be mounted, and each type is provided attachable to and detachable from the head base. The control unit is provided to be connected to and disconnected from each type of mounting operation unit by including the control means corresponding to each moving mechanism with the maximum number of nozzles in the mounting operation unit.

Description

  The present invention relates to an electronic component mounting apparatus for mounting electronic components on a substrate.

  Conventionally, for example, an electronic component mounting apparatus described in Patent Document 1 includes a suction nozzle that holds an electronic component, a mounting operation mechanism that causes the suction nozzle to perform a mounting operation, and a mounting operation mechanism based on an operation command from a main body control unit. A mounting head integrated with a head control unit for controlling is provided. This mounting head is detachably mounted on the electronic component mounting apparatus.

  In such an electronic component mounting apparatus, for example, when a relatively small number of electronic components such as square chips are mounted on a substrate in a short time, a mounting head having a large number of suction nozzles is mounted. On the other hand, when mounting a relatively large electronic component on a substrate with high accuracy, such as an integrated circuit, by mounting a mounting head having a small number of suction nozzles, various electronic component mounting modes It becomes possible to achieve versatility of the electronic component mounting line.

Japanese Patent No. 3960054

  The apparatus described in Patent Document 1 described above is configured such that the mounting head is detachably mounted on the electronic component mounting apparatus. For this reason, it becomes possible to reduce installation space and apparatus cost compared with preparing a plurality of apparatus itself according to various electronic component mounting forms. However, a mounting head that is detachably mounted includes a suction nozzle, a mounting operation mechanism, and a head control unit, and is relatively expensive as a configuration of an electronic component mounting apparatus. In addition, preparing a plurality of such mounting heads in accordance with various electronic component mounting forms causes an increase in apparatus cost. Accordingly, it is desired to further reduce the apparatus cost.

  The present invention solves the above-described problems, and an object thereof is to provide an electronic component mounting apparatus capable of further reducing the apparatus cost while obtaining various electronic component mounting forms.

  In order to achieve the above-described object, an electronic component mounting apparatus according to a first aspect of the present invention has a mounting head provided so as to be movable in parallel with the surface of a substrate, and is taken out from the component supply unit by the mounting head. In the electronic component mounting apparatus for transporting the electronic component to a predetermined position of the substrate and mounting the electronic component on the substrate, the mounting head is provided with a head base provided to be movable in parallel to the surface of the substrate; A mounting operation unit having a nozzle for holding the electronic component, a vertical movement of the nozzle along a vertical axis, and a rotary mechanism for rotating the nozzle about the axis, and the movement mechanism based on an operation command. A control unit having a control means, wherein the mounting operation unit includes a number corresponding to the number of the nozzles or the electronic component to be mounted, and each type corresponds to the head. The control unit is provided so as to be detachable from the base, and the control unit has control means corresponding to each moving mechanism of the maximum number of nozzles in the mounting operation unit, and is connected to each type of mounting operation unit It is characterized in that it can be cut.

  According to this electronic component mounting apparatus, various types of electronic component mounting modes can be obtained by replacing each type of mounting operation unit in the mounting head. In addition, since the control unit has control means corresponding to the mounting operation unit having the maximum number of nozzles among the various types of mounting operation units, it can be used in common for each type of mounting operation unit. Therefore, even if the mounting operation unit is replaced, it is not necessary to replace the control unit, and only one control unit is required. Therefore, the apparatus cost can be reduced as compared with the case where the mounting operation unit and the control unit are replaced. Can be achieved.

  According to a second aspect of the present invention, there is provided the electronic component mounting apparatus according to the first aspect, wherein the control unit is movable with respect to the head base so as to open the mounting operation unit in the attaching / detaching direction. It is characterized by that.

  According to this electronic component mounting apparatus, the mounting operation unit can be opened in the attaching / detaching direction without removing the control unit from the head base.

  According to a third aspect of the present invention, there is provided the electronic component mounting apparatus according to the first aspect, wherein the control unit is rotatably provided with respect to the head base so as to open the mounting operation unit in the attaching / detaching direction. It is characterized by being.

  According to this electronic component mounting apparatus, by rotating the control unit, the control unit can be moved with a simple configuration supported by the support shaft, and the mounting operation unit can be attached and detached without removing the control unit from the head base. Can be opened in any direction.

  According to a fourth aspect of the present invention, there is provided the electronic component mounting apparatus according to the second or third aspect, wherein the control unit is supported in a state where the control unit is moved to a position where the mounting operation unit is opened in the attaching / detaching direction. A mechanism is provided.

  According to this electronic component mounting apparatus, the mounting operation unit can be easily replaced by supporting the control unit while the control unit is moved.

  According to a fifth aspect of the present invention, there is provided the electronic component mounting apparatus according to the first aspect, wherein the control unit is detachably attached to the head base so as to open the mounting operation unit in the attaching / detaching direction. It is characterized by that.

  According to this electronic component mounting apparatus, when the control unit is removed from an arrangement that hinders the movement of the mounting head, the mounting operation unit can be attached or detached even at a position that prevents the mounting operation unit from being attached or detached. If the control unit is removed so as to open in the direction, the mounting operation unit can be replaced.

  According to a sixth aspect of the present invention, in the electronic component mounting apparatus according to the first aspect, the control unit is fixed to the head base at a position where the mounting operation unit is opened in the attaching / detaching direction. To do.

  According to this electronic component mounting apparatus, if the control unit is fixed at a position where the mounting operation unit is originally opened in the attachment / detachment direction, the trouble of removing or moving the control unit can be saved.

  According to a seventh aspect of the present invention, in the electronic component mounting apparatus according to any one of the first to sixth aspects, the mounting operation unit and the control unit are connected via a cable, and the cable is connected to the mounting operation unit. A cable support part for supporting the cable is provided.

  According to this electronic component mounting apparatus, when the mounting operation unit is attached to and detached from the head base, the cable removed from the control unit is supported so as to correspond to the connection position of the cable to the control unit side. Cable can be placed.

  According to the present invention, it is possible to further reduce the apparatus cost while obtaining various electronic component mounting forms.

FIG. 1 is a perspective view showing a schematic configuration of an electronic component mounting apparatus. FIG. 2 is a schematic configuration diagram illustrating a mounting head in the electronic component mounting apparatus. FIG. 3 is a perspective view showing a mounting head in the electronic component mounting apparatus. FIG. 4 is a perspective view illustrating a procedure for replacing the mounting operation unit of the mounting head. FIG. 5 is a perspective view showing a procedure for replacing the mounting operation unit of the mounting head.

  Hereinafter, the present invention will be described in detail with reference to the drawings. The present invention is not limited by the following modes for carrying out the invention (hereinafter referred to as embodiments). In addition, constituent elements in the following embodiments include those that can be easily assumed by those skilled in the art, those that are substantially the same, and those in a so-called equivalent range. Furthermore, the constituent elements disclosed in the following embodiments can be appropriately combined. In the following drawings, a horizontal direction in which a substrate is conveyed is defined as an X direction, a vertical direction is defined as a Z direction, and a direction perpendicular to both the X direction and the Z direction is defined as a Y direction.

FIG. 1 is a perspective view showing a schematic configuration of an electronic component mounting apparatus.
An electronic component mounting apparatus 1 shown in FIG. 1 is an apparatus for mounting (mounting) electronic components on a substrate 10. The electronic component mounting apparatus 1 includes a component supply unit 11, a board transport unit 12, a mounting head 13, and an XY moving mechanism 14. In addition, the board | substrate 10 should just be a member which mounts an electronic component, and the structure is not specifically limited. The substrate 10 of the present embodiment is a plate-like member, and a wiring pattern is provided on the surface. A bonding member (solder or the like) is attached to the surface of the wiring pattern provided on the substrate 10. And the joining member (solder etc.) joins the wiring pattern and electronic component on a board | substrate by heating the wiring pattern and electronic component of the board | substrate 10 at a post process.

  The component supply unit 11 can hold a large number of electronic components mounted on the substrate 10 and can supply the electronic components held by the holding unit 11a to the mounting head 13, that is, a state in which the mounting head 13 can hold the electronic components. Feeder section 11b. Although various configurations can be used as the component supply unit 11, in this embodiment, the holding unit 11 a in which the electronic component is attached to the carrier tape, the carrier tape is fed by a predetermined amount, and the electronic component is moved to a predetermined position. It is the tape feeder comprised by the feeder part 11b made to be in the state exposed to the. The component supply unit 11 is preferably configured to be detachable from the apparatus main body.

  The substrate transport unit 12 is a transport mechanism that transports the substrate 10 in the X-axis direction in FIG. The substrate transport unit 12 includes a rail that extends in the X-axis direction, and a transport mechanism that supports the substrate 10 and moves the substrate 10 along the rail. The substrate transport unit 12 transports the substrate 10 in the X-axis direction by moving the substrate 10 along the rail by the transport mechanism in a direction in which the surface (front surface) of the substrate 10 faces the mounting head 13. The board transport unit 12 transports the board 10 supplied from a device that supplies the board 10 to the electronic component mounting apparatus 1 to a predetermined position on the rail. Moreover, the board | substrate conveyance part 12 will convey the board | substrate 10 to the apparatus which performs the next process (for example, reflow), if an electronic component is mounted on the board | substrate 10 conveyed to the said predetermined position. Various structures can be used as the transport mechanism of the substrate transport unit 12. For example, a belt-type transport mechanism is used in which a rail disposed along the transport direction of the substrate 10 and an endless belt rotating along the rail are combined and transported with the substrate 10 mounted on the endless belt. Can do.

  The mounting head 13 is a mechanism for holding the electronic component held in the component supply unit 11 and mounting the held electronic component on the surface of the substrate 10 moved to a predetermined position by the substrate transport unit 12. Details of the configuration of the mounting head 13 will be described later.

  The XY moving mechanism 14 is a moving mechanism that moves the mounting head 13 in the X-axis direction and the Y-axis direction in FIG. 1, that is, on a plane parallel to the surface of the substrate 10. Part 14b. The X-axis drive unit 14a is connected to the mounting head 13 and moves the mounting head 13 in the X-axis direction. The Y-axis drive unit 14b is connected to the mounting head 13 via the X-axis drive unit 14a, and moves the mounting head 13 in the Y-axis direction by moving the X-axis drive unit 14a in the Y-axis direction. The XY movement mechanism 14 can move the nozzle 31 to a position facing the substrate 10 or a position facing the feeder unit 11 b of the component supply unit 11 by moving the mounting head 13 in the XY axis direction.

  The XY movement mechanism 14 adjusts the relative position between the mounting head 13 and the substrate 10 by moving the mounting head 13. Thereby, the electronic component held by the mounting head 13 can be moved to an arbitrary position on the surface of the substrate 10, and the electronic component can be mounted at an arbitrary position on the surface of the substrate 10. As the X-axis drive unit 14a, various mechanisms for moving the mounting head 13 in a predetermined direction (bidirectional) can be used. As the Y-axis drive unit 14b, various mechanisms that move the X-axis drive unit 14a in a predetermined direction (bidirectional) can be used. In the X-axis drive unit 14a and the Y-axis drive unit 14b, as a mechanism for moving an object in a predetermined direction (bidirectional), for example, a linear motor, a rack and pinion, a conveyance mechanism using a ball screw, or a belt is used. A transport mechanism or the like can be used.

  A schematic configuration of the mounting head 13 will be described. FIG. 2 is a schematic configuration diagram illustrating a mounting head in the electronic component mounting apparatus. As shown in FIG. 2, the mounting head 13 includes a head base 20, a mounting operation unit 21, and a control unit 22.

  The head base 20 is connected to the X-axis drive unit 14a, is provided to be movable in the X-axis direction by the X-axis drive unit 14a, and is provided to be movable in the Y-axis direction by the Y-axis drive unit 14b. Yes. That is, the head base 20 is provided so as to be movable on a plane parallel to the surface of the substrate 10. The head base 20 includes a substrate recognition detection unit 38 and a height detection unit 39. The substrate recognition detection unit 38 is an imaging device such as a camera that captures an image below the mounting head 13, and detects whether the substrate 10 is present below the mounting head 13 by imaging. The height detection unit 39 detects the height of the nozzle 31 relative to the substrate 10 in the mounting operation unit 21 attached to the head base 20 by projecting laser light or the like below the mounting head 13.

  The mounting operation unit 21 holds electronic components and mounts them on the surface of the substrate 10. The mounting operation unit 21 includes a nozzle 31, a Z-axis movement mechanism 32, a θ rotation movement mechanism (movement mechanism) 33, a Z axis position detection unit (movement mechanism) 34, a θ rotation position detection unit 35, A component state detection unit 36 and a component recognition detection unit 37 are provided.

  The mounting operation base frame 30 is attached to the head base 20.

  The nozzle 31 holds an electronic component. In this embodiment, the nozzle 31 holds the electronic component by suction. Therefore, the nozzle 31 is provided at the lower end of a tubular nozzle shaft 31a extending in the vertical direction (vertical direction), and is configured as a suction nozzle that holds electronic components by suction.

  The Z-axis moving mechanism (moving mechanism) 32 moves the nozzle 31 up and down along the Z-axis 32a extending in the vertical direction (vertical direction). In the Z-axis moving mechanism 32, a linear guide 32b parallel to the Z-axis 32a is provided on the mounting operation base frame 30, and a Z-axis moving part 32c that supports the nozzle shaft 31a is arranged in the Z-axis direction with respect to the linear guide 32b. It is mounted movably. In the Z-axis moving mechanism 32, a Z-axis motor 32d is provided on the mounting operation base frame 30. The output shaft of the Z-axis motor 32d extends in parallel to the Z-axis 32a, and a screw rod 32f is connected in parallel to the Z-axis 32a via a coupling 32e. The screw rod 32f is screwed with a nut portion 32g, and the nut portion 32g is fixed to the Z-axis moving portion 32c. Therefore, in the Z-axis moving mechanism 32, when the Z-axis motor 32d is driven, the screw rod 32f rotates and the nut portion 32g moves up and down in the Z-axis direction, so that the Z-axis moving portion 32c is accompanied by the nozzle 31. Moves up and down in the Z-axis direction. For this reason, the nozzle 31 moves up and down in the Z-axis direction, holds the electronic component at a position facing the feeder portion 11 b of the component supply unit 11, and mounts the electronic component on the substrate 10 at a position facing the substrate 10. Can do.

  The θ rotation movement mechanism (movement mechanism) 33 rotates the nozzle 31 around the Z axis 32a. In the θ rotation moving mechanism 33, a lower rotation bearing 33a and an upper rotation bearing 33b are provided in the Z axis moving portion 32c, and the nozzle shaft 31a is supported by the rotation bearings 33a and 33b so as to be rotatable around the Z axis 32a. ing. Further, in the θ rotation moving mechanism 33, a mounting operation base frame 30 is provided with a θ rotation motor 33c, and a pulley 33d is attached to an output shaft thereof. In addition, the θ rotation moving mechanism 33 is provided with a vertical rotation driving unit bearing 33g which is composed of a spline bearing 33e and a rotation bearing 33f and has a pulley attached to the outer peripheral portion at a position parallel to the pulley 33d. The nozzle shaft 31a is supported by the vertical rotation drive unit bearing 33g so as to be able to move up and down along the Z axis 32a and to rotate around the Z axis 32a. And the pulley 33d and the pulley of the outer peripheral part of the vertical rotation drive part bearing 33g are connected by the timing belt 33h. Accordingly, when the θ rotation motor 33c is driven, the θ rotation movement mechanism 33 transmits the rotation of the pulley 33d to the vertical rotation drive unit bearing 33g via the timing belt 33h, so that the nozzle shaft 31a causes the nozzle 31 to move. Along with this, it rotates around the Z axis 32a. For this reason, the nozzle 31 rotates around the Z axis 32a, rotates the held electronic component around the Z axis 32a, changes the direction of the electronic component, or causes the electronic component to be detected by a component state detection unit 36 described later. It is possible to detect a center position, a position shift between the center position of the electronic component and the nozzle 31, and the like.

  The Z-axis position detector 34 detects the vertical movement position of the nozzle 31 along the Z-axis 32a, and is configured as an encoder provided in the Z-axis motor 32d, for example.

  The θ rotation position detection unit 35 detects a rotational movement position of the nozzle 31 around the Z axis 32a, and is configured as an encoder provided in the θ rotation motor 33c, for example.

  The component state detection unit 36 is attached to the mounting operation base frame 30 and is disposed in a trajectory in which the nozzle 31 moves up and down, and is held by the nozzle 31 by the shadow of the electronic component that is blocked while projecting laser light or the like. This is for detecting the shape of the electronic component and the holding state of the electronic component with respect to the nozzle 31.

  The component recognition detection unit 37 is an imaging device such as a camera that is attached to the mounting operation base frame 30 and includes the nozzle 31 and images the periphery of the nozzle 31. The component recognition detection unit 37 detects whether an electronic component is held by the nozzle 31 by imaging.

  The control unit 22 mainly controls the moving mechanisms 32 and 33 of the mounting operation unit 21 based on the operation command. The control unit 22 includes a holding operation control unit 41, a Z-axis movement control unit 42, a θ rotation movement control unit 43, a signal detection unit 44, and a communication unit 45 in the control base frame 40. Note that the control means for controlling each of the moving mechanisms 32 and 33 based on the operation command is the Z-axis movement control unit 42 and the θ rotation movement control unit 43.

  The control base frame 40 is attached to the head base 20.

  The holding operation control unit 41 controls the holding operation in the nozzle 31 of the mounting operation unit 21. In the present embodiment, the holding operation control unit 41 causes the nozzle 31 to suck or release the electronic component. Apply negative or positive pressure. For this reason, the holding operation control unit 41 has an electromagnetic valve connected by an air tube between the air supply source and the nozzle shaft 31a, and controls the switching of the electromagnetic valve.

  The Z-axis movement control unit 42 controls driving of the Z-axis motor 32d in the Z-axis moving mechanism 32 of the mounting operation unit 21 in order to move the nozzle 31 up and down along the Z-axis 32a. Specifically, for example, the Z-axis motor 32d is driven to rotate forward so as to lower the nozzle 31, or the Z-axis motor 32d is driven to rotate backward so as to raise the nozzle 31.

  The θ rotation movement control unit 43 controls the driving of the θ rotation motor 33 c in the θ rotation movement mechanism 33 of the mounting operation unit 21 in order to rotate the nozzle 31 around the Z axis 32 a. Specifically, for example, the θ rotation motor 33c is driven to rotate in the forward direction so that the nozzle 31 is rotated around one side around the Z axis 32a, or the nozzle 31 is rotated around the other side around the Z axis 32a. The θ rotation motor 33c is reversely driven.

  In the mounting operation unit 21, the signal detection unit 44 outputs an output signal that detects the Z-axis position of the Z-axis position detection unit 34, an output signal that detects the θ-rotation position of the θ-rotation position detection unit 35, and the component state detection unit 36. The output signal which detected the component, the output signal which the detection part 37 for component recognition imaged, the output signal which detected the board | substrate 10 of the detection part 38 for board recognition, and the output signal which detected the height of the height detection part 39 are input To do.

  The communication unit 45 transmits and receives control signals to and from the management device 100 that controls the entire electronic component mounting apparatus 1 and manages the mounting of the electronic components on the board 10. Although not explicitly shown in the figure, the management apparatus 100 manages the control of the entire electronic component mounting apparatus 1 based on an operator input using an input means such as a keyboard or a mouse, or a program stored in advance. A control signal is transmitted to the unit 11, the substrate transport unit 12, the mounting head 13, and the XY moving mechanism 14. In addition, the management apparatus 100 receives output signals from the detection units and the like in the component supply unit 11, the board transport unit 12, the mounting head 13, and the XY movement mechanism 14. Therefore, the communication unit 45 sends a control signal (operation command) transmitted from the management device 100 to the holding operation control unit 41, the Z-axis movement control unit 42, and the θ rotation movement control unit 43 in the mounting head 13. The control signal is received and transmitted to the holding operation control unit 41, the Z-axis movement control unit 42, and the θ rotation movement control unit 43. In addition, the communication unit 45 transmits the output signal input by the signal detection unit 44 to the management device 100. The management apparatus 100 receives the output signal and transmits a control signal for controlling the XY movement mechanism 14, the Z-axis movement mechanism 32, and the θ rotation movement mechanism 33 to the communication unit 45. Further, the communication unit 45 feeds back the output signals of the Z-axis position detection unit 34 and the θ rotation position detection unit 35 input by the signal detection unit 44 to the Z-axis movement control unit 42 and the θ rotation movement control unit 43. The Z axis movement control unit 42 and the θ rotation movement control unit 43 input the output signals of the Z axis position detection unit 34 and the θ rotation position detection unit 35 and control the Z axis movement mechanism 32 and the θ rotation movement mechanism 33.

  In the mounting head 13 described above, the mounting operation unit 21 and the control unit 22 are connected to each other by a cable in order to control the mounting operation unit 21 by the control unit 22 as described above.

  By the way, the mounting head 13 described above includes a plurality of nozzles 31. That is, in the mounting operation unit 21, the Z-axis movement mechanism 32, the θ rotation movement mechanism 33, the Z axis position detection unit 34, the θ rotation position detection unit 35, the component state detection unit 36, and the component recognition for one nozzle 31 Detection unit 37 is provided, and these nozzle 31, Z-axis movement mechanism 32, θ rotation movement mechanism 33, Z-axis position detection unit 34, θ rotation position detection unit 35, component state detection unit 36, and component recognition The detection unit 37 is configured as one set.

  The mounting operation unit 21 includes a large number (for example, six: see FIG. 4) of nozzles 31 when a large amount of relatively small electronic components such as square chips are mounted on the substrate 10 in a short time. It is preferable to provide a small number (for example, three: see FIG. 5) of nozzles 31 when a relatively large electronic component such as an integrated circuit is mounted on a substrate with high accuracy.

  For this reason, the mounting head 13 includes a plurality of types of mounting operations having different numbers of sets having the number of nozzles 31 and the respective moving mechanisms 32 and 33 and the detection units 34, 35, 36 and 37 corresponding to the number of nozzles 31. The mounting operation unit 21 is provided so as to be detachable with respect to the head base 20, and is configured to be replaceable depending on the case.

  Further, the mounting head 13 needs to perform control corresponding to each set of mounting operation units 21 in the control unit 22. The control unit 22 of the present embodiment is a control unit that is a control unit corresponding to each of the moving mechanisms 32 and 33 and the detection units 34, 35, 36, and 37 of the mounting operation unit 21 having the maximum number of nozzles (for example, 6 sets). 41, 42, 43 and a signal detection unit 44. The control unit 22 can be connected to and disconnected from each type of mounting operation unit 21 with a cable.

  As described above, the electronic component mounting apparatus 1 according to the present embodiment has the mounting head 13 provided so as to be movable in parallel with the surface of the substrate 10, and is taken out from the component supply unit 11 by the mounting head 13. The electronic component is transported to a predetermined position on the substrate 10 and mounted on the substrate 10. The mounting head 13 includes a head base 20 provided so as to be movable in parallel to the surface of the substrate 10, a nozzle 31 for holding electronic components, and a vertical movement of the nozzle 31 along the vertical axis. The mounting operation unit 21 having each of the moving mechanisms 32 and 33 and the detecting units 34, 35, 36, and 37 that rotate and move around the axis, and control means that controls each moving mechanism based on the operation command (each control unit 41, 42 and 43 and a control unit 22 having a signal detector 44). Further, the mounting operation unit 21 includes types according to the number of nozzles 31 or electronic components to be mounted, and each type is provided so as to be detachable from the head base 20, and the control unit 22 includes a mounting operation. It has control means corresponding to each moving mechanism 32, 33 and each detecting unit 34, 35, 36, 37 of the maximum number of nozzles in the unit 21, and can be connected to and disconnected from each type of mounting operation unit 21. It has been.

  According to this electronic component mounting apparatus 1, various types of electronic component mounting modes can be obtained by replacing each type of mounting operation unit 21 in the mounting head 13. In addition, since the control unit 22 has control means corresponding to the mounting operation unit 21 having the maximum number of nozzles among the various types of mounting operation units 21, the control unit 22 can be used in common for each type of mounting operation unit 21. it can. For this reason, even if the mounting operation unit 21 is replaced, it is not necessary to replace the control unit 22, and only one control unit 22 is required. Therefore, compared to the case where the mounting operation unit 21 and the control unit 22 are replaced, The apparatus cost can be reduced. Further, since only the mounting operation unit 21 is replaced, the replacement operation can be facilitated as compared with the case where the mounting operation unit 21 and the control unit 22 are replaced. Further, since only the mounting operation unit 21 is replaced, it is only necessary to store the replacement mounting operation unit 21 as compared with the case where the mounting operation unit 21 and the control unit 22 are replaced. Space can be reduced.

  Here, the configuration of the mounting head 13 will be described. FIG. 3 is a perspective view showing a mounting head in the electronic component mounting apparatus, and FIGS. 4 and 5 are perspective views showing a procedure for replacing the mounting operation unit of the mounting head.

  As shown in FIGS. 3 to 5, the mounting head 13 is provided with a mounting operation unit 21 detachably with respect to the head base 20 described above, and a control unit 22 is movably provided.

  The mounting operation unit 21 is provided with a mounting operation base frame 30 that is detachable from the head base 20. The mounting position of the mounting operation base frame 30 with respect to the head base 20 is the opposite side in the Y-axis direction (the front part of the head base 20) with respect to the side on which the head base 20 is attached to the X-axis drive unit 14a. The position of the mounting operation unit 21 is a position where the mounting operation unit 21 does not hinder movement in the X-axis direction by the X-axis drive unit 14a, and can be easily maintained and detached without being blocked by the X-axis drive unit 14a. Position. The mounting operation base frame 30 is attached to and detached from the head base 20 by tightening or loosening a fixing member such as a screw.

  The mounting operation base frame 30 is provided with a cable support portion 30a. In the present embodiment, the cable support portion 30a is composed of a plurality of rod-like members extending in the X-axis direction, and is configured such that a cable connecting the mounting operation unit 21 and the control unit 22 can be hooked. The cable support 30a is attached to the connector 22a of the control unit 22 shown in FIGS. 4 and 5 by hooking a cable removed from the control unit 22 when the mounting operation unit 21 is attached to or detached from the head base 20. Cables can be placed in corresponding positions. The cable support 30a is not limited to the rod-shaped member described above, and may be, for example, a hook member that can hang a cable, a chuck member that fits and holds the cable, or the like.

  The mounting operation base frame 30 is provided with a handle portion 30b. The handle portion 30b is for an operator to grasp by hand, and can support the mounting operation unit 21 when the mounting operation unit 21 is attached to or detached from the head base 20.

  In the control unit 22, the control base frame 40 is attached to the head base 20. In this embodiment, the mounting position of the control base frame 40 with respect to the head base 20 is Y with respect to the side where the head base 20 is attached to the X-axis drive unit 14a (the back side of the head base 20 shown in FIG. 4). This is the opposite side of the axial direction (the surface side of the head base 20 shown in FIG. 4), and is the position (the front part of the mounting operation unit 21) that sandwiches the mounting operation unit 21 with the head base 20. The position of the control unit 22 is a position that does not hinder movement in the X-axis direction by the X-axis drive unit 14a, and is a position that does not narrow the movement range in the X-axis direction by the X-axis drive unit 14a. This position does not impair the balance of movement by the moving mechanism 14 and does not increase the height of the apparatus.

  For example, when the control unit 22 is arranged at a position aligned with the mounting operation unit 21 in the X-axis direction (side portion of the mounting operation unit 21), the movement range in the X-axis direction by the X-axis drive unit 14a tends to be narrowed. Further, when the control unit 22 is arranged on the upper part of the mounting operation unit 21, the mounting head 13 tends to increase in the height direction, and the movement balance by the XY movement mechanism 14 tends to deteriorate, and the mounting head 13 increases in the height direction. Then, the height of the device tends to increase. The apparatus is preferably small in view of the production line prospects. Although not clearly shown in the drawing, if the movement in the X-axis direction by the X-axis drive unit 14a is not hindered, the head base 20 is attached to the X-axis drive unit 14a so as to open the mounting operation unit 21 in the attachment / detachment direction. The control unit 22 may be fixed to the side to be attached (rear part). Further, if the mounting head 13 does not become too large in the height direction, the control unit 22 may be fixed to the upper part of the mounting operation unit 21 so as to open the mounting operation unit 21 in the attaching / detaching direction.

  When the control unit 22 is arranged at the front part of the mounting operation unit 21, the control unit 22 is a front part of the mounting operation unit 21 and is opened in a direction in which the mounting operation unit 21 is attached to and detached from the head base 20. The head base 20 may be configured to be detachable. However, removing the control unit 22 from the head base 20 when attaching and detaching the mounting operation unit 21 takes time to replace the mounting operation unit 21.

  For this reason, in this embodiment, the control unit 22 is provided so as to be movable with respect to the head base 20 so as to open the mounting operation unit 21 in the attaching / detaching direction. That is, in the present embodiment, as shown in FIG. 3, the control unit 22 has a pair of both sides extending from the top of the control base frame 40 over the mounting operation unit 21 to the head base 20 side. An arm portion 40a is provided. The distal ends of the arm portions 40a are rotatably supported by a pair of rotating support plates 20a fixed to the head base 20 via support shafts 40b extending in the X-axis direction. As a result, in order to open the mounting operation unit 21 in the attaching / detaching direction, the control unit 22 is provided to be rotatable upward. Although not shown in the figure, the control unit 22 is supported by a rail extending in the Z-axis direction (vertical direction) or the X-axis direction on the head base 20, thereby mounting the mounting operation unit 21. It may be provided so as to be slidable in the Z-axis direction so as to open in the attachment / detachment direction. Although not clearly shown in the figure, the control unit 22 is supported by the head base 20 via a support shaft extending in the Z-axis direction (vertical direction), so that the mounting operation unit 21 is attached and detached. It may be provided so as to be able to rotate and move laterally so as to be opened.

  Further, when the control unit 22 is provided so as to be movable with respect to the head base 20 so as to open the mounting operation unit 21 in the attaching / detaching direction, the control unit 22 is moved to a position where the mounting operation unit 21 is opened in the attaching / detaching direction. Supporting 22 makes it easy to replace the mounting operation unit 21. In the present embodiment, a support mechanism that supports the control unit 22 is provided in a state where the control unit 22 has moved to a position where the mounting operation unit 21 is opened in the attachment / detachment direction. The support mechanism is provided on the head base 20 with a pair of support plates 20b on both sides extending to the front part on the control unit 22 side at a position lower than the moved control unit 22, and the control unit 22 It is set as the structure which supports the control unit 22 by inserting the support member 50 between the control unit 22 and the support plate 20b in the moved state. 4 and 5, the support member 50 is shown as a U-shaped mold member. However, the shape of the support member 50 is not limited to the shape. For example, the support member 50 is at a position where the mounting operation unit 21 is opened in the attachment / detachment direction. It may be a rod-like member or the like that supports the control unit 22 in a state where the control unit 22 has moved. In the present embodiment, the support plate 20b is used as a portion to which the above-described rotation support plate 20a is fixed. The support mechanism can be used during maintenance of the mounting operation unit 21 other than during replacement of the mounting operation unit 21. The support mechanism includes a support plate 20b and a support member 50.

  In such a mounting head 13, in order to replace the mounting operation unit 21, the cable and the air tube are removed from the control unit 22 and the control unit 22 as shown in FIG. To move the mounting operation unit 21 in the attaching / detaching direction. Thereafter, the mounting operation unit 21 (six nozzles 31) is removed from the head base 20. Thereafter, as shown in FIG. 5, another mounting operation unit 21 (three nozzles 31) is attached to the head base 20. Thereafter, an air tube is connected to the control unit 22, and the control unit 22 is moved to the normal use state shown in FIG. Thereafter, a cable is connected to the control unit 22.

  According to the above embodiment, the mounting operation unit 21 includes types according to the number of nozzles, and each type is provided to be detachable from the head base 20. In addition to this, it is easily conceivable that the mounting operation unit 21 is provided with types corresponding to the electronic components, and each type is detachably provided to the head base 20. In other words, depending on the size and type of electronic components to be picked up and mounted, a strong driving force is required for vertical movement and rotational movement, or the rotation angle during mounting (mounting) is higher for electronic components that are severe. (Fine) resolution may be required. At this time, a different type of Z-axis movement mechanism 32 or θ rotation movement mechanism 33 is attached to the mounting operation unit 21 to cope with it. In this case, since the number of nozzles is the same, it is defined that the mounting operation unit 21 has a plurality of types according to the electronic components to be mounted.

  As described above, the electronic component mounting apparatus 1 according to the present embodiment has the mounting head 13 provided so as to be movable in parallel with the surface of the substrate 10, and is taken out from the component supply unit 11 by the mounting head 13. In the electronic component mounting apparatus 1 that transports an electronic component to a predetermined position on the substrate 10 and mounts it on the substrate 10, the mounting head 13 includes a head base 20 provided so as to be movable in parallel with the surface of the substrate 10. The mounting operation unit 21 having the nozzle 31 for holding the electronic components, the vertical movement of the nozzle 31 along the vertical axis, and the movement mechanisms 32 and 33 for rotating the nozzle 31 around the axis, and each movement based on the operation command A control unit 22 having control means for controlling the mechanisms 32 and 33, and the mounting operation unit 21 corresponds to the number of nozzles 31 or the electronic components to be mounted. Each type is detachably attached to the head base 20, and the control unit 22 has control means corresponding to each moving mechanism 32, 33 of the maximum number of nozzles in the mounting operation unit 21. It is provided so that it can be connected and disconnected with respect to various types of mounting operation units 21. In the electronic component mounting apparatus 1 of the present embodiment, the control unit 22 is provided so as to be movable with respect to the head base 20 so as to open the mounting operation unit 21 in the attaching / detaching direction.

  According to the electronic component mounting apparatus 1, the mounting operation unit 21 can be opened in the attaching / detaching direction without removing the control unit 22 from the head base 20.

  Further, in the electronic component mounting apparatus 1 of the present embodiment, the control unit 22 is provided so as to be rotatable with respect to the head base 20 so as to open the mounting operation unit 21 in the attaching / detaching direction.

  According to the electronic component mounting apparatus 1, by rotating the control unit 22, the control unit 22 can be moved with a simple configuration supported by the support shaft 40 b without removing the control unit 22 from the head base 20. The mounting operation unit 21 can be opened in the attaching / detaching direction.

  In addition, the electronic component mounting apparatus 1 of the present embodiment includes a support mechanism that supports the control unit 22 in a state where the control unit 22 has moved to a position where the mounting operation unit 21 is opened in the attachment / detachment direction.

  According to the electronic component mounting apparatus 1, the mounting operation unit 21 can be easily replaced by supporting the control unit 22 while the control unit 22 is moved.

  Further, in the electronic component mounting apparatus 1 according to the present embodiment, the control unit 22 is detachably provided to the head base 20 so as to open the mounting operation unit 21 in the attaching / detaching direction.

  According to this electronic component mounting apparatus 1, when the control unit 22 is provided so as to be removed from an arrangement that hinders the movement of the mounting head 13, mounting is possible even if the mounting operation unit 21 is prevented from being attached or detached. If the control unit 22 is removed so that the operation unit 21 is opened in the attachment / detachment direction, the mounting operation unit 21 can be replaced.

  Further, in the electronic component mounting apparatus 1 of the present embodiment, the control unit 22 is fixed to the head base 20 at a position where the mounting operation unit 21 is opened in the attaching / detaching direction.

  According to the electronic component mounting apparatus 1, if the control unit 22 is fixed at a position where the mounting operation unit 21 is originally opened in the attaching / detaching direction, the trouble of removing or moving the control unit 22 can be saved. .

  Further, in the electronic component mounting apparatus 1 of the present embodiment, the mounting operation unit 21 and the control unit 22 are connected via a cable, and a cable support portion 30a that allows the mounting operation unit 21 to support the cable is provided.

  According to the electronic component mounting apparatus 1, when the mounting operation unit 21 is attached to and detached from the head base 20, the cable connection position to the control unit 22 side is supported by supporting the cable removed from the control unit 22. The cable can be arranged to correspond to

  3 to 5, reference numeral 51 denotes an external communication unit interposed between the communication unit 45 and the management apparatus 100 in FIG. 2, and is attached to the head base 20. The external communication unit 51 may not be provided as illustrated in FIG. 2, but the communication unit 45 is connected to the control unit 22 by dedicated transmission / reception of signals between the mounting head 13 and the management apparatus 100. It can be dedicated to sending and receiving signals.

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 10 Board | substrate 11 Component supply part 13 Mounting head 20 Head base 21 Mounting operation unit 22 Control unit 30a Cable support part 31 Nozzle 32a Z axis 32 Z axis moving mechanism 33 (theta) rotational movement mechanism 50 Support member

Claims (7)

A mounting head provided so as to be movable in parallel to the surface of the substrate is provided, and the electronic component taken out from the component supply unit is transported to a predetermined position of the substrate by the mounting head and mounted on the substrate. In electronic component mounting equipment,
The mounting head is
A head base provided to be movable in parallel to the surface of the substrate;
A mounting operation unit having a nozzle for holding the electronic component, and a vertical movement of the nozzle along a vertical axis and a moving mechanism for rotating the nozzle around the axis;
A control unit having control means for controlling each of the moving mechanisms based on an operation command,
The mounting operation unit includes the number of nozzles or types according to the electronic components to be mounted, and each type is provided to be detachable from the head base,
The control unit has control means corresponding to each moving mechanism of the maximum number of nozzles in the mounting operation unit, and is provided so as to be connectable / disconnectable to each type of mounting operation unit. Electronic component mounting equipment.   The electronic component mounting apparatus according to claim 1, wherein the control unit is provided so as to be movable with respect to the head base so as to open the mounting operation unit in an attaching / detaching direction.   2. The electronic component mounting apparatus according to claim 1, wherein the control unit is provided so as to be rotatable with respect to the head base so as to open the mounting operation unit in an attaching / detaching direction.   The electronic component mounting apparatus according to claim 2, further comprising a support mechanism that supports the control unit in a state in which the control unit is moved to a position where the mounting operation unit is opened in the attachment / detachment direction.   2. The electronic component mounting apparatus according to claim 1, wherein the control unit is detachably attached to the head base so as to open the mounting operation unit in an attaching / detaching direction.   The electronic component mounting apparatus according to claim 1, wherein the control unit is fixed to the head base at a position where the mounting operation unit is opened in an attaching / detaching direction.   The said mounting operation unit and the said control unit are connected via a cable, The cable support part which makes the said mounting operation unit support the said cable is provided. Electronic component mounting equipment.

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