Component mounting machine

Abstract

A component mounting machine according to the present disclosure is for mounting a component and comprises: a first beam member extending in a first axial direction and movable in a second axial direction intersecting the first axial direction; a first head disposed on one side of the first beam member in the second axial direction and capable of picking up a component; a first axial movement device that moves the first head along the first beam member in the first axial direction; and a first wiring cover attached to an upper portion of the first beam member and protecting a portion of wiring for supplying electricity to the first axial movement device, said portion extending along the first beam member in the first axial direction. A part of the first wiring cover is a recessed part that forms a space for accessing the first head in the upper portion due to the height from the first beam member being shorter compared to other portions of the first wiring cover.

Description

Component Mounting Machine

[0001] This specification discloses a component mounter.

[0002] Conventionally, there has been known a component mounter that picks up components and mounts them on a substrate such as a board (see, for example, Patent Document 1). The component mounter described in Patent Document 1 includes a first beam member and a second beam member that extend in the X-axis direction and are movable in the Y-axis direction that intersects the X-axis direction, a first head that is supported by the first beam member so as to be movable in the X-axis direction and is capable of picking up components, and a second head that is supported by the second beam member so as to be movable in the X-axis direction and is also capable of picking up components. The first head and the second head are disposed on opposing sides of the first beam member and the second beam member.

[0003] International Publication No. 2022 / 249229

[0004] However, in such a mounter, when accessing the first head from outside the mounter, for example, during replacement work, the first head is located closer to the inside of the mounter (farther from the outside of the mounter) than the first beam member, making it difficult to access the first head. Furthermore, if another member is attached to the top of the first beam member, it becomes even more difficult to access the first head.

[0005] The present disclosure has been made to solve the above-mentioned problems, and a main object of the present disclosure is to make it easier for an operator to access the first head from the first beam member side.

[0006] The present disclosure employs the following means to achieve the above-mentioned main object.

[0007] The component mounter of the present disclosure is a component mounter that mounts components, comprising: a first beam member that extends in a first axial direction and is movable in a second axial direction that intersects with the first axial direction; a first head that is arranged on one side of the first beam member in the second axial direction and is capable of picking up the components; a first axis moving device that moves the first head in the first axial direction along the first beam member; and a first wiring cover that is attached to the top of the first beam member and protects a portion of the wiring that supplies power to the first axis moving device, which extends along the first beam member in the first axial direction; and a portion of the first wiring cover has a smaller height from the first beam member than other portions of the first wiring cover, thereby forming a recessed portion at the top that forms a space for accessing the first head.

[0008] In this mounter, a first wiring cover is attached to the top of the first beam member, and the first wiring cover has a recessed portion, which allows the worker to access the first head from outside the housing through the space above the recessed portion. Therefore, the worker can easily access the first head from the first beam member side. In this disclosure, the term "worker" includes not only humans but also non-humans such as work robots.

[0009] 1 is a perspective view of the component mounter 10. A top view of the component mounter 10. A perspective view of the beam member 17. A perspective view of the head 20 and the beam member 17. A perspective view of the wiring cover 18 and its periphery. A front view of the first opening 82a and its periphery. A top view of the first head 20a and the second head 20b. An explanatory diagram showing the first head 20a moving up and down. A perspective view of the head holding unit 50 and the head 20 in a holding state. A perspective view of the head holding unit 50 and the head 20 in a released state. An explanatory diagram showing the operation lever 56 switching between the holding state and the released state. A perspective view of the back of the head 20. A block diagram showing the electrical connections of the component mounter 10.

[0010] Next, embodiments of the present disclosure will be described with reference to the drawings.

[0011] FIG. 1 is a perspective view of a mounter 10 of this embodiment. FIG. 2 is a top view of the mounter 10. FIG. 3 is a perspective view of a beam member 17. FIG. 4 is a perspective view of a head 20 and the beam member 17. FIG. 5 is a perspective view of a wiring cover 18 and its periphery. FIG. 6 is a front view of a first opening 82a and its periphery. FIG. 7 is a top view of a first head 20a and a second head 20b. FIG. 8 is an explanatory diagram showing how the first head 20a moves up and down. FIG. 9 is a perspective view of a head holding unit 50 and the head 20 in a holding state. FIG. 10 is a perspective view of a head holding unit 50 and the head 20 in a released state. FIG. 11 is an explanatory diagram showing how an operating lever 56 switches between a holding state and a released state. FIG. 12 is a perspective view of the back of the head 20. FIG. 13 is a block diagram showing the electrical connections of the mounter 10. In FIG. 1, the left-right direction is the X-axis direction (an example of the first axis direction), the front-rear direction is the Y-axis direction (an example of the second axis direction), and the up-down direction is the Z-axis direction.

[0012] As shown in FIGS. 1 and 2 , the mounter 10 of this embodiment picks up components supplied from a feeder F and mounts them on a board S. The mounter 10 includes a base 12, a board transport device (not shown), first and second heads 20a and 20b, first and second beam members 17a and 17b, first and second X-axis movement devices 30a and 30b, first and second Y-axis movement devices 60a and 60b, first and second Z-axis movement devices 70a and 70b (see FIGS. 7 and 13 ), and a control device 90 (see FIG. 13 ). The mounter 10 also includes a first part camera 95a and a second part camera 95b capable of capturing images of components from below. These cameras are housed in a housing 11. On both the left and right sides of the upper stage of the base 12, strip-shaped support bases 13 are provided, extending forward and backward. Furthermore, a first operation panel 14a and a second operation panel 14b that can be operated by an operator and that can display various information are installed on the front and rear surfaces of the housing 11. The first head 20a and the second head 20b may be simply referred to as heads 20. Similarly, components related to the first head 20a are given the prefix "first" and the letter "a," and components related to the second head 20b are given the prefix "second" and the letter "b," and when there is no need to distinguish between them, they may be referred to by names without the prefixes "first," "second," "a," and "b."

[0013] The substrate transport device has a pair of front and rear conveyor belts and a motor that drives the conveyor belts in a circular motion. The substrate transport device transports the substrates S on the conveyor belts from left to right by driving the conveyor belts with the motor. The substrate transport device may have multiple lanes for transporting the substrates S in a width direction perpendicular to the substrate transport direction. The substrate transport device may also transport the substrates S so that multiple lanes are lined up in the substrate transport direction.

[0014] The first and second heads 20a, 20b have nozzles 21 that pick up (collect) and hold components supplied from the feeder F (see FIG. 4). As shown in FIGS. 1 and 2, the first head 20a is disposed on the rear side (one side in the second axis direction) of the first beam member 17a. The first head 20a is supported by the first beam member 17a so as to be movable left and right (X axis). The second head 20b is disposed on the front side (the other side in the second axis direction) of the second beam member 17b. The second head 20b is supported by the second beam member 17b so as to be movable left and right (X axis).

[0015] The first and second beam members 17a, 17b (beam members 17) are elongated members extending in the left-right direction (X-axis), are arranged parallel to each other, and are spanned across a pair of shared Y-axis linear guides 61 (guide rails). They are movable back and forth (in the Y-axis) along the pair of Y-axis linear guides 61. As shown in FIGS. 2 to 4 , the first and second beam members 17a, 17b are formed in a rectangular cylindrical shape. A pair of upper and lower X-axis linear guides 31 (guide rails) extending parallel to each other are disposed on opposing side surfaces. The pair of upper and lower X-axis linear guides 31 are joined to the beam member 17, for example, by a combination of adhesive bonding, screw joints, or pin joints. Furthermore, Y-axis block members 65 are fixed to both ends of the beam member 17. The beam member 17 moves back and forth (in the Y-axis) as each Y-axis block member 65 moves on the corresponding Y-axis linear guides 61 at both ends. The head 20 moves back and forth in association with the forward and backward movement of the beam member 17 .

[0016] The first X-axis moving device 30a moves the first head 20a left and right (X-axis) along the first beam member 17a. The second X-axis moving device 30b moves the second head 20b left and right (X-axis) along the second beam member 17b. As shown in FIGS. 3 and 4 , the first and second X-axis moving devices 30a and 30b (X-axis moving devices 30) include the pair of upper and lower X-axis linear guides 31, the X-axis linear motor 32, and multiple (four) X-axis guide nuts 36. The position of the first head 20a in the X-axis direction is detected by, for example, a first X-axis linear encoder (not shown) arranged on the bottom surface of the first beam member 17a. The position of the second head 20b in the X-axis direction is detected by, for example, a second X-axis linear encoder (not shown) arranged on the bottom surface of the second beam member 17b.

[0017] In this embodiment, the X-axis linear motor 32 is configured as a flat linear motor having an X-axis stator 33 attached to the side surface of the beam member 17 and an X-axis mover 34 arranged facing the X-axis stator 33 at a predetermined distance in the front-to-rear direction. The X-axis stator 33 has a plurality of permanent magnets arranged along the X-axis linear guides 31 between a pair of upper and lower X-axis linear guides 31 on the side surface of the beam member 17. The X-axis mover 34 is arranged between the pair of upper and lower X-axis linear guides 31 in the vertical direction. The X-axis mover 34 has a core and a coil. When a current is applied to the coil, the X-axis mover 34 outputs a driving force to move the head 20 left and right (in the X-axis direction) along the X-axis linear guide 31. As shown in FIGS. 3 and 4 , in this embodiment, two X-axis guide nuts 36 are arranged on each of the pair of upper and lower X-axis linear guides 31, and the X-axis mover 34 is supported by a total of four X-axis guide nuts 36.

[0018] The X-axis linear motors 32 of the first and second X-axis movement devices 30a, 30b (X-axis movement devices 30) are operated by receiving power supply via X-axis power cables arranged inside the first and second wiring covers 18a, 18b (wiring covers 18) and the first and second X-axis cable protection members 15a, 15b (X-axis cable protection members 15) shown in FIGS. 1, 2, and 5.

[0019] The wiring cover 18 is attached to the top of the beam member 17 and protects the portion of the wiring that supplies power to the X-axis movement device 30, extending in the left-right direction (X-axis direction) along the beam member 17. Parts of the wiring cover 18 form first and second recesses 19a, 19b (recesses 19), which are lower in height from the beam member 17 than the other portions of the wiring cover 18. The upper surface of the recess 19 is flat. The portion of the wiring cover 18 other than the recess 19 that is connected to the recess 19 has a sloped upper surface such that the height of the recess 19 decreases as it approaches the recess 19. The first recess 19a is located at the end of the first wiring cover 18a closest to the center in the left-right direction, i.e., the right end. The first recess 19a forms a space 86 for accessing the first head 20a, as shown in FIG. 6 . The second recess 19b is provided at the end of the second wiring cover 18b that is closer to the center in the left-right direction, i.e., the left end (see FIG. 2). Similar to the first recess 19a, the second recess 19b forms a space for accessing the second head 20b.

[0020] The X-axis cable protection member 15 is a flexible member. An example of the X-axis cable protection member 15 is a Cableveyor (Cableveyor is a registered trademark). The X-axis cable protection member 15 extends left and right (X-axis) and follows the left and right movement of the head 20. One end of the X-axis cable protection member 15 is fixed to the upper part of the beam member 17 at a position adjacent to the recessed portion 19, and the other end is connected to an upper unit 40 provided on the upper part of the head 20. One end of the first X-axis cable protection member 15a is fixed at a position adjacent to the right side of the first recessed portion 19a. The X-axis power cable inside the first wiring cover 18a exits from the right end of the first recessed portion 19a, enters the inside of the first X-axis cable protection member 15a from one end side, passes through the inside of the first X-axis cable protection member 15a, and is arranged to the upper unit 40 provided on the upper part of the first head 20a. One end of the second X-axis cable protection member 15b is fixed at a position adjacent to the left side of the second recessed portion 19b. The X-axis power cable inside the second wiring cover 18 exits from the left end of the second recessed portion 19b, enters the second X-axis cable protection member 15b from one end side, passes through the inside of the second X-axis cable protection member 15b, and is arranged up to the upper unit 40 provided above the X-axis mover 34.

[0021] Power cables for supplying power not only to the X-axis moving device 30 but also to the head control unit 46, head 20, and Z-axis moving device 70 are arranged inside the wiring cover 18 and the X-axis cable protection member 15. Signal lines for signal input and output between the control device 90 and the head control unit 46 are also arranged inside the wiring cover 18 and the X-axis cable protection member 15. Furthermore, inside the part of the wiring cover 18 other than the recessed portion 19, there are housed, for example, a signal conversion board for converting between the electrical signals used in the control device 90 and the optical signals used in the head control unit 46, and relay connectors for connecting wiring such as signal lines and power cables. The part of the wiring cover 18 other than the recessed portion 19 is taller than the recessed portion 19 so that it can accommodate these items.

[0022] The first Y-axis moving device 60a moves the first beam member 17a back and forth (on the Y-axis). The second Y-axis moving device 60b moves the second beam member 17b back and forth (on the Y-axis). As shown in FIG. 2, the first and second Y-axis moving devices 60a and 60b (Y-axis moving devices 60) each have a pair of left and right Y-axis linear guides 61 and a Y-axis linear motor 62 provided on each side. The position of the first head 20a in the Y-axis direction is detected by, for example, a first Y-axis linear encoder (not shown) disposed on the right side of the left support base 13. The position of the second head 20b in the Y-axis direction is detected by, for example, a second Y-axis linear encoder (not shown) disposed on the left side of the right support base 13.

[0023] The left and right Y-axis linear motors 62 of the first Y-axis movement device 60a are operated by receiving power via a first Y-axis power cable supported by a first Y-axis cable protection member 16a. The first Y-axis cable protection member 16a is installed above the left Y-axis linear guide 61 of the pair of left and right Y-axis linear guides 61. The first Y-axis cable protection member 16a extends in the front-to-rear direction and follows the front-to-rear movement of the first beam member 17a. One end of the first Y-axis cable protection member 16a is fixed to a left power supply box (not shown) located approximately in the center in the front-to-rear direction and to which the first Y-axis power cable is connected, and the other end is fixed to a Y-axis block member 65 on the left side of the first beam member 17a. The first Y-axis power cable extends from the left Y-axis block member 65 through the inside of the first beam member 17a to the right Y-axis block member 65, and supplies power to the left Y-axis linear motor 62 (Y-axis mover 64) fixed to the left Y-axis block member 65 and the right Y-axis linear motor 62 (Y-axis mover 64) fixed to the right Y-axis block member 65.

[0024] The left and right Y-axis linear motors 62 of the second Y-axis movement device 60b are operated by receiving power via a second Y-axis power cable supported by a second Y-axis cable protection member 16b. The second Y-axis cable protection member 16b is installed above the right Y-axis linear guide 61 of the pair of left and right Y-axis linear guides 61. The second Y-axis cable protection member 16b extends in the front-to-rear direction and follows the front-to-rear movement of the second beam member 17b. One end of the second Y-axis cable protection member 16b is located approximately in the center in the front-to-rear direction and is fixed to a right power supply box (not shown) to which the second Y-axis power cable is connected, and the other end is fixed to a Y-axis block member 65 on the right side of the second beam member 17b. The second Y-axis power cable extends from the right Y-axis block member 65 through the inside of second beam member 17b to the left Y-axis block member 65, and supplies power to the left Y-axis linear motor 62 (Y-axis mover 64) fixed to the left Y-axis block member 65 and the right Y-axis linear motor 62 (Y-axis mover 64) fixed to the right Y-axis block member 65. An example of the first and second Y-axis cable protection members 16a, 16b is Cableveyor (Cableveyor is a registered trademark).

[0025] As shown in FIG. 2, the pair of left and right Y-axis linear guides 61 are disposed on the upper surfaces of the left and right support bases 13 so as to extend in the front-rear direction.

[0026] As shown in Figure 2, the Y-axis linear motor 62 is configured as a flat linear motor having a Y-axis stator 63 fixed to the support base 13 so as to extend in the front-to-rear direction, and a Y-axis mover 64 fixed to a Y-axis block member 65 so as to face the Y-axis stator 63 at a predetermined vertical distance. The Y-axis stator 63 has a plurality of permanent magnets placed flat along the Y-axis linear guide 61 on the same plane as the Y-axis linear guide 61. The Y-axis mover 64 has a core and a coil. When a current is applied to the coil, the Y-axis mover 64 outputs a driving force and moves back and forth (in the Y-axis).

[0027] 4 to 10, an upper unit 40, a control unit housing unit 45, a head holding unit 50, and a Z-axis moving device 70 are attached to the X-axis mover 34 of the X-axis moving device 30. The upper unit 40, the control unit housing unit 45, the head holding unit 50, the Z-axis moving device 70, and the head 20 held by the head holding unit 50 move left and right together with the X-axis mover 34. Note that the control unit housing unit 45 is not shown in FIG. 10 to make the head holding unit 50 easier to see.

[0028] The range of movement of first head 20a in the X-axis and Y-axis directions by first X-axis moving device 30a and first Y-axis moving device 60a covers the position in Fig. 2 where the front feeder F supplies components, the position (above first part camera 95a) where the first part camera 95a can capture an image of the component picked up by the nozzle 21, and the entire range on board S. The range of movement of second head 20b in the X-axis and Y-axis directions by second X-axis moving device 30b and second Y-axis moving device 60b covers the position in Fig. 2 where the rear feeder F supplies components, the position (above second part camera 95b) where the second part camera 95b can capture an image of the component picked up by the nozzle 21, and the entire range on board S.

[0029] The upper unit 40 houses signal lines and power cables connected to the signal lines and power cables inside the wiring cover 18 and the X-axis cable protection member 15, and functions as a relay for inputting and outputting signals and supplying power to and from the X-axis movement device 30, the head control unit 46, the head 20, and the Z-axis movement device 70. The upper unit 40 is attached to the top of the X-axis mover 34. The upper unit 40 includes an arm 41, an attachment-side connector 42, and a connector lever 43. The arm 41 extends in the front-to-rear direction (Y-axis direction) from the main body of the upper unit 40 so as to cover the top of the head 20. The attachment-side connector 42 is disposed at the tip of the arm 41 and is configured to be connectable to the head-side connector 23 of the head 20. The connector lever 43 is disposed at the tip of the arm 41 and is configured to be rotatable up and down (rotatable on a plane along the Y-axis and Z-axis directions) around the tip of the arm 41. 9 and 10 , when the connector lever 43 is lowered, the positional relationship between the attachment-side connector 42 and the head-side connector 23 is fixed in a connected state, and when the connector lever 43 is raised, the attachment-side connector 42 and the head-side connector 23 can be disconnected. The signal lines and power cables inside the wiring cover 18 and the X-axis cable protection member 15 are connected to the head 20 via the signal lines and power cables inside the arm portion 41, the attachment-side connector 42, and the head-side connector 23.

[0030] The first and second head holders 50a, 50b (head holders 50) are configured to be switchable between a holding state in which they hold the head 20 (see FIG. 9) and a release state in which they do not hold the head 20 (see FIG. 10). The head holder 50 is disposed between the X-axis mover 34 and the head 20 in the Y-axis direction. As shown in FIGS. 7 and 8, the first head holder 50a is disposed rearward of the first beam member 17a and attached to the rear surface of the X-axis mover 34 of the first X-axis moving device 30a. The first head holder 50a can hold the first head 20a attached to its rear surface. The second head holder 50b is disposed forward of the second beam member 17b and attached to the front surface of the X-axis mover 34 of the second X-axis moving device 30b. The second head holder 50b can hold the second head 20b attached to its front surface. As shown in FIGS. 9 to 11, the head holding portion 50 includes a piston holding block 51, a piston 52, a pin 53, a cam member 54, a shaft member 55, an operating lever 56, and a claw holder 58.

[0031] The piston holding block 51 is a member that protrudes from the main body of the head holding unit 50 toward the head 20 along the Y-axis direction. The piston 52 is disposed inside the piston holding block 51, with its axial direction aligned vertically. The piston 52 has an elliptical hole that is elongated vertically, and a pin 53 passes through this hole from front to back (see FIG. 11 ). This pin 53 restricts the piston 52 from rotating about its axis and holds it within the piston holding block 51 so that it can move up and down a predetermined amount. The piston 52 has claws that are gradually thinner from front to back near its bottom end. When the head 20 is attached to the head holding unit 50, the claws of the piston 52 engage with an engagement block 25 (see FIG. 12 ) protruding from the back surface of the head 20.

[0032] The cam member 54 is a plate cam attached to a shaft member 55 (see FIG. 11 ) and converts the rotational movement of the shaft member 55 into vertical movement of the piston 52. The shaft member 55 is connected to an operating lever 56, and the two are rotatable integrally. By rotating this shaft member 55, the head holding portion 50 can be switched between a holding state and a release state.

[0033] The operating lever 56 is a plate-shaped member and is arranged so that its longitudinal direction is along the left-right direction. The operating lever 56 rotates around the shaft member 55 as a fulcrum along the left-right direction (X-axis direction) and on a plane (here, the XZ plane) perpendicular to the front-rear direction (Y-axis direction), thereby switching the head holding unit 50 between a holding state and a release state. The operating lever 56 of the first head holding unit 50a is arranged behind the first beam member 17a and the X-axis mover 34 of the first X-axis moving device 30a. The operating lever 56 of the second head holding unit 50b is arranged ahead of the second beam member 17b and the X-axis mover 34 of the second X-axis moving device 30b.

[0034] The claw holders 58 are members capable of supporting the claws 28 (see FIG. 12) arranged on the back surface of the head 20 from below, and are configured as recessed receiving portions into which the tips of the claws 28 fit (see FIG. 10). In this embodiment, there are two claw holders 58 and two claws 28 (two pairs), and the vertical position of the head 20 attached to the head holding part 50 is determined by fitting the claws 28 into the two pairs of claw holders 58.

[0035] When the claws 28 are fitted into the claw holder 58 and the back surface of the head 20 is in contact with the head holding part 50, the operating lever 56 is pushed up until its tip is in the upper position ( FIG. 9 ), causing the operating lever 56 to rotate about its axis (clockwise in FIG. 11 ) ( FIG. 9 ), and the cam member 54 assumes the position shown in FIG. 11A . In this state, the piston 52 is urged downward by the outer circumferential surface of the cam member 54. As a result, the claws at the lower end of the piston 52 engage with the engagement block 25 of the head 20 and press the engagement block 25 downward. As a result, the engagement block 25 and the claws 28 on the back surface of the head 20 are sandwiched from above and below between the piston 52 and the claw holder 58 of the head holding part 50, and the head 20 is held and fixed to the head holding part 50. This state ( FIGS. 9 and 11A ) is the holding state of the head holding part 50. On the other hand, when the operating lever 56 in the holding state is pushed down until its tip is in a downward position (FIG. 10) and the operating lever 56 rotates on its axis (counterclockwise in FIG. 11), the cam member 54 assumes the state shown in FIG. 11B. In this state, the piston 52 and the engagement block 25 are disengaged, making it possible to pull the engagement block 25 forward, i.e., remove the head 20 from the head holding portion 50. This state (FIGS. 10 and 11B) is the released state in which the head holding portion 50 does not hold the head 20.

[0036] In addition to the nozzle 21, head-side connector 23, engagement block 25, and claw 28, the first and second heads 20a and 20b (heads 20) also include first and second nozzle lifting devices 22a and 22b (nozzle lifting devices 22) (see FIG. 13) and a handle belt 29 (see FIGS. 9 and 10). The first and second nozzle lifting devices 22a and 22b (nozzle lifting devices 22) raise and lower the nozzle 21 in the vertical direction (Z-axis direction). The handle belt 29 is used by an operator to hold the head 20 when attaching or detaching the head 20 to or from the head holder 50. The head 20 is also connected to a pressure supply source (not shown) via piping that passes through, for example, the wiring cover 18, the X-axis cable protection member 15, the upper unit 40, and the head holder 50. When negative pressure from the pressure supply source is supplied to the suction port of the nozzle 21 of the head 20, the nozzle 21 picks up a component. Furthermore, when the supply of negative pressure to the suction port of the nozzle 21 is stopped or positive pressure is supplied, the nozzle 21 stops suctioning the component.

[0037] The first and second control unit housing units 45a and 45b (control unit housing unit 45) house the first and second head control units 46a and 46b (head control unit 46) and house signal lines and power cables between the upper unit 40 and the head control unit 46. The control unit housing unit 45 is disposed in a left-right position relative to the head 20 and the head holding unit 50. The control unit housing unit 45 is disposed in a front-rear position relative to the beam member 17 and the X-axis mover 34. More specifically, the first control unit housing unit 45a (and the first head control unit 46a) is disposed on the right side relative to the first head 20a and the first head holding unit 50a. The first control unit housing unit 45a is disposed behind the first beam member 17a and the X-axis mover 34 of the first X-axis moving device 30a. The second control unit housing unit 45b (and the second head control unit 46b) is disposed on the left side relative to the second head 20b and the second head holding unit 50b. The second control unit housing unit 45b is disposed in front of the second beam member 17b and the X-axis mover 34 of the second X-axis moving device 30b. The control unit housing unit 45 includes a head control unit 46 and a control unit cover 47. The head control unit 46 is a control board having, for example, a CPU, ROM, RAM, and storage (a non-volatile memory that allows information to be rewritten), and functions as a computer that controls the entire head 20, including the nozzle lifting device 22. The head control unit 46 also controls the X-axis moving device 30 and the Z-axis moving device 70. The head control unit 46 outputs control signals to, for example, the nozzle lifting device 22, the X-axis linear motor 32, and the Z-axis motor 72. The first and second head control units 46a and 46b (head control units 46) also receive signals from the first and second X-axis linear encoders. The first and second head control units 46a and 46b (head control unit 46) are disposed in the control unit housing unit 45 with their longitudinal directions aligned along the vertical direction, as shown by the dashed-line frame in Fig. 8. The control unit cover 47 covers the periphery of the head control unit 46 to protect it.7 and 8, the control unit cover 47 is configured in a shape that avoids the operation lever 56, and the operation lever 56 penetrates the control unit cover 47 from left to right in a top view, with the tip of the operation lever 56 protruding in the left-right direction from the side of the control unit cover 47 opposite the head holding unit 50. More specifically, the operation lever 56 of the first head holding unit 50a protrudes rightward from the right side of the control unit cover 47 of the first control unit housing unit 45a. The operation lever 56 of the second head holding unit 50b protrudes leftward from the left side of the control unit cover 47 of the second control unit housing unit 45b. The operation lever 56 is disposed between the head control unit 46 and the X-axis mover 34 in the front-rear direction.

[0038] The first and second Z-axis moving devices 70a and 70b (Z-axis moving devices 70) are devices that raise and lower the first and second heads 20a and 20b (heads 20) in the vertical direction. In this embodiment, the Z-axis moving device 70 raises and lowers the control unit housing unit 45 and head holding unit 50 along with the heads 20. The Z-axis moving device 70 includes a Z-axis motor 72, a ball screw 74, and a belt 76. The drive shaft of the Z-axis motor 72 is connected to the rotation shaft of the ball screw 74 via the belt 76 (see FIGS. 4 and 7 ), and transmits rotational driving force to the ball screw 74 via the belt 76. The ball screw 74 rotates upon receiving the rotational driving force from the Z-axis motor 72, thereby raising and lowering the head holding unit 50. As the head holding unit 50 rises and lowers, the heads 20 held by the head holding unit 50 and the control unit housing unit 45 attached laterally to the head holding unit 50 also rise and lower. Fig. 8A shows the first head holding unit 50a at the highest position within its lifting range, and Fig. 8B shows the first head holding unit 50a at the lowest position within its lifting range. Note that, as shown in Figs. 9 and 10, the drive shaft of the Z-axis motor 72 is actually covered from above, but in Figs. 4 and 7, the cover is omitted from the illustration of the Z-axis motor 72.

[0039] The Z-axis moving device 70 is disposed in the front-to-rear direction relative to the beam member 17 and the X-axis mover 34. Specifically, the first Z-axis moving device 70a is disposed rearward relative to the first beam member 17a and the X-axis mover 34 of the first X-axis moving device 30a. The second Z-axis moving device 70b is disposed forward relative to the second beam member 17b and the X-axis mover 34 of the second X-axis moving device 30b. At least a portion of the Z-axis moving device 70 is disposed in the left-to-right direction (X-axis direction) relative to the head 20. Specifically, the Z-axis motor 72 of the first Z-axis moving device 70a is disposed on the left side relative to the first head 20a. This Z-axis motor 72 is also disposed on the left side relative to the first head holder 50a. The ball screw 74 of the first Z-axis moving device 70a is disposed in front of the first head 20a and is disposed between the first head 20a and the X-axis mover 34 of the first X-axis moving device 30a in the front-to-rear direction. The Z-axis motor 72 of the second Z-axis moving device 70b is disposed on the right side of the second head 20b. This Z-axis motor 72 is also disposed on the right side of the second head holder 50b. The ball screw 74 of the second Z-axis moving device 70b is disposed behind the second head 20b, and is disposed between the second head 20b and the X-axis mover 34 of the second X-axis moving device 30b in the front-to-rear direction.

[0040] The control unit housing unit 45 and the Z-axis moving device 70 are arranged on opposite sides of the head 20 and the head holding unit 50 in the left-right direction. Specifically, the first control unit housing unit 45a is arranged to the right of the first head 20a and the first head holding unit 50a, and the first Z-axis moving device 70a is arranged to the left of the first head 20a and the first head holding unit 50a. The second control unit housing unit 45b is arranged to the left of the second head 20b and the second head holding unit 50b, and the second Z-axis moving device 70b is arranged to the right of the second head 20b and the second head holding unit 50b.

[0041] The housing 11 houses the head 20, beam member 17, X-axis moving device 30, and wiring cover 18. The housing 11 also houses the X-axis cable protection member 15, upper unit 40, control unit housing unit 45, head holder 50, and Z-axis moving device 70. The housing 11 has first and second openings 82a and 82b (openings 82) for accessing the head 20 from the beam member 17 side along the front-rear direction, and first and second opening covers 85a and 85b (opening covers 85) for covering the openings 82. The first opening 82a is provided on the front surface of the housing 11 and is used to access the first head 20a from the first beam member 17a side, i.e., from the front side. The first opening cover 85a can open and close the first opening 82a. A first operation panel 14a is disposed on the front surface of the housing 11 to the right of the first opening 82a and first opening cover 85a. The second opening 82b is provided on the rear surface of the housing 11 and is used to access the second head 20b from the second beam member 17b side, i.e., from the rear. The second opening cover 85b can open and close the second opening 82b. A second operation panel 14b is provided on the rear surface of the housing 11 to the left of the second opening 82b and the second opening cover 85b.

[0042] The control device 90 controls the entire component mounter 10. The control device 90 is, for example, a computer having a CPU, ROM, RAM, and storage (a rewritable non-volatile memory). The control device 90 outputs control signals to the head control unit 46, the Y-axis linear motor 62 of the Y-axis moving device 60, the first part camera 95a, and the second part camera 95b, and outputs display signals to the first operation panel 14a and the second operation panel 14b. The control device 90 also inputs signals from the head control unit 46, image signals from the first part camera 95a and the second part camera 95b, operation signals from the first operation panel 14a and the second operation panel 14b, and signals from the first and second Y-axis linear encoders. The control device 90 controls the head 20, the X-axis moving device 30, and the Z-axis moving device 70 via the head control unit 46.

[0043] Here, the height of the center of gravity of the first and second movable bodies 39a, 39b (movable bodies 39) moved in the X-axis direction by the first and second X-axis moving devices 30a, 30b (X-axis moving devices 30) will be described. As described above, in this embodiment, when the X-axis mover 34, which is part of the first X-axis moving device 30a, moves left and right, the upper unit 40, the first control unit housing unit 45a, the first head holding unit 50a, the first Z-axis moving device 70a, and the first head 20a all move left and right together with the X-axis mover 34. Therefore, these are collectively referred to as the first movable body 39a. The height of the center of gravity of this first movable body 39a is located between the pair of upper and lower X-axis linear guides 31 in the vertical direction. In other words, the height of the center of gravity of the first movable body 39a is located within the range of the vertical region R (see FIG. 8 ) from the upper end of the upper X-axis linear guide 31 to the lower end of the lower X-axis linear guide 31 of the first X-axis moving device 30a. In this way, by positioning the center of gravity height of the first moving body 39a within the range of region R, the speed of left-right movement of the first head 20a by the first X-axis moving device 30a can be increased. Note that in this embodiment, as described above, the first head control unit 46a is positioned left-right relative to the first head 20a, more specifically, on the right side. Therefore, it is easier to configure the mounter 10 so that the center of gravity height of the first moving body 39a is positioned within the range of region R, compared to when, for example, the first head control unit 46a is positioned above or below the first head 20a.

[0044] The same applies to the center of gravity of the second moving body 39b, which is moved by the second X-axis moving device 30b. In this embodiment, when the X-axis mover 34, which is part of the second X-axis moving device 30b, moves left and right, the upper unit 40, the second control unit housing unit 45b, the second head holding unit 50b, the second Z-axis moving device 70b, and the second head 20b all move left and right together with the X-axis mover 34. Therefore, these are collectively referred to as the second moving body 39b (see FIG. 7). The center of gravity of the second moving body 39b is located between the pair of upper and lower X-axis linear guides 31 in the vertical direction, which enables the second head 20b to be moved left and right at high speed by the second X-axis moving device 30b. Furthermore, the second head control unit 46b is located left and right relative to the second head 20b, more specifically, on the left side. Therefore, compared to when, for example, the second head control unit 46b is positioned above or below the second head 20b, it is easier to configure the component mounter 10 so that the height of the center of gravity of the second moving body 39b is located between a pair of upper and lower X-axis linear guides 31.

[0045] In this embodiment, since the first head 20a can be raised and lowered by the first Z-axis moving device 70a as described above, it is sufficient that the height of the center of gravity of the first moving body 39a is within the range of region R when the first head 20a is located in at least one of the upper and lower lifting ranges. However, it is preferable that the height of the center of gravity of the first moving body 39a is within the range of region R regardless of the position of the first head 20a in the lifting range. In other words, it is preferable that the height of the center of gravity of the first moving body 39a is within the range of region R both in the state where the first head 20a is located at the highest position in the lifting range ( FIG. 8A ) and in the state where the first head 20a is located at the lowest position in the lifting range ( FIG. 8B ). The same applies to the second moving body 39b.

[0046] The height of the center of gravity of the first moving body 39a can be adjusted not only by the position of the first head control unit 46a described above, but also by adjusting the position and shape of other components included in the first moving body 39a. Furthermore, as described above, the position of the first head control unit 46a in the left-right direction relative to the first head 20a makes it easy to position the height of the center of gravity of the first moving body 39a within the range of region R, but as shown in FIG. 8 , the first head control unit 46a itself may have a portion that extends above or below region R. However, the first head control unit 46a may also be positioned so that it does not extend beyond region R regardless of the position of the first head 20a within its lifting range. The same applies to the second moving body 39b.

[0047] As described above, the first head control unit 46a is located at a left-right position relative to the first head 20a, more specifically, on the right side, and moves left-right together with the first head 20a. Here, for example, if the first head control unit 46a is located at a lower position relative to the first head 20a, the position to which the first head 20a is lowered by the first Z-axis moving device 70a is limited to a height at which the first head control unit 46a does not interfere with other components (e.g., feeder F, board S, etc.) within the mounter 10. In contrast, in the mounter 10 of this embodiment, the first head control unit 46a is located at a left-right position relative to the first head 20a, so the first head 20a can be lowered to a lower position. This allows the first head 20a to be moved up and down closer to the components to be picked up by the feeder F, or closer to the position on the board S where the components are to be mounted, thereby reducing the distance the nozzle 21 is raised and lowered by the first nozzle lifting device 22a when picking or mounting components. Simultaneous operation of the first Z-axis moving device 70a and the first nozzle lifting device 22a also facilitates faster lifting and lowering of the nozzle 21. This reduces the time required for the nozzle 21 lifting and lowering operation, improving the throughput of component mounting work by the first head 20a.

[0048] Like the first head control unit 46a, the second head control unit 46b is located to the left and right of the second head 20b, more specifically, on the left side, and moves to the left and right together with the second head 20b. This reduces the time required for the nozzle 21 of the second head 20b to move up and down, improving the throughput of the component mounting work by the second head 20b.

[0049] As described above, at least a portion of the first Z-axis moving device 70a (here, the Z-axis motor 72) and the first head control unit 46a are disposed in a left-right position relative to the first head 20a and move left-right together with the first head 20a. This makes it easier to reduce the amount of front-to-rear projection L1 (see FIG. 7 ) of the first head 20a from the first beam member 17a compared to, for example, a case in which at least one of the entire first Z-axis moving device 70a and the first head control unit 46a is disposed in a front-to-rear position relative to the first head 20a (e.g., between the first head 20a and the first beam member 17a). This reduces the likelihood of the first head 20a interfering with other members when moving the first beam member 17a in the front-to-rear direction, thereby increasing the range of movement of the first beam member 17a in the front-to-rear direction.

[0050] Similarly, at least a part of the second Z-axis moving device 70b (here, the Z-axis motor 72) and the second head control unit 46b are disposed at left-right positions relative to the second head 20b and move left-right together with the second head 20b. This makes it easier to reduce the amount of protrusion L2 of the second head 20b from the second beam member 17b in the front-rear direction, thereby increasing the range of movement of the second beam member 17b in the front-rear direction.

[0051] Furthermore, the smaller the protrusion amounts L1 and L2, the easier it is to reduce the minimum distance L3 in the front-to-rear direction between the first beam member 17a and the second beam member 17b, which also widens the range of front-to-rear movement of the first and second beam members 17a and 17b by the Y-axis moving device 60. The minimum distance L3 is determined, for example, as the larger of the protrusion amounts L1 and L2 plus a predetermined safety margin, and the control device 90 controls the Y-axis moving device 60 within a range such that the distance in the front-to-rear direction between the first beam member 17a and the second beam member 17b does not become less than the minimum distance L3. In this embodiment, the protrusion amounts L1 and L2 are the same value.

[0052] Next, a head replacement operation (an example of a head operation) for replacing the first head 20a held by the first head holder 50a with another first head 20a will be described. When performing the head replacement operation, the operator first presses a head replacement start button (not shown) on the first operation panel 14a to input a command to start the head replacement operation for the first head 20a. Upon receiving this input, the control device 90 controls the first Y-axis moving device 60a to move the first beam member 17a to the forwardmost position within its forward / rearward movable range. The control device 90 also outputs a command to the first head control unit 46a to move the first head 20a to the first work position. The first head control unit 46a controls the first X-axis moving device 30a to move the first head 20a to the first work position. The first work position is, for example, the position of the first head 20a shown in FIG. 6 . 6, the first working position is a position between both ends (left end 83 and right end 84) of the first opening 82a in the left-right direction, and a position where the first head 20a is adjacent to the first recessed portion 19a in the left-right direction (here, adjacent to the right of the first recessed portion 19a). As a result, a space 86 above the first recessed portion 19a in the first opening 82a is located adjacent to one side (here, the left side) of the first head 20a in the left-right direction.

[0053] The first working position is a position where the right end 84 of the first opening 82a (i.e., the end opposite the first recessed portion 19a with respect to the first working position of the first head 20a) is spaced apart from the first head 20a in the left-right direction. This results in a state where a space 87, which is part of the first opening 82a, is adjacent to the other left-right side (here, the right side) of the first head 20a. In this embodiment, the space 87 is the region of the first opening 82a between the top and bottom of the folded-back portion of the first X-axis cable protection member 15a.

[0054] Once the first head 20a has moved to the first operating position, the worker opens the first opening cover 85a and performs the replacement work for the first head 20a. First, the worker removes the first head 20a. Specifically, the worker inserts his left hand through the space 86, rearward of the first beam member 17a and below the upper surface of the first beam member 17a, and holds the handle belt 29 of the first head 20a. In this state, the worker inserts his right hand through the space 87, rearward of the first beam member 17a and below the upper surface of the first beam member 17a, and rotates the lowered connector lever 43 ( FIG. 9 ) to an upper position ( FIG. 10 ). Next, while still holding the handle belt 29 with his left hand, the worker pushes down the operating lever 56 with his right hand, inserted rearward of the first beam member 17a through the space 87. This switches the first head holder 50a from the holding state ( FIGS. 9 and 11A ) to the release state ( FIGS. 10 and 11B ). Next, the worker tilts the first head 20a with his / her left hand while holding the handle belt 29 so that the upper part of the first head 20a moves backward (FIG. 10), thereby releasing the connection between the attachment-side connector 42 and the head-side connector 23 and releasing the engagement between the claw holder 58 and the claw 28, and removing the first head 20a from the first-head holding part 50a. The worker then removes the first head 20a from the housing 11 via the space 86. This completes the removal of the first head 20a.

[0055] Next, the worker installs another first head 20a. This installation can be performed in the reverse order of the removal of the first head 20a. First, the worker holds the handle belt 29 of the first head 20a with his left hand and inserts the first head 20a into the housing 11 via the space 86. Next, the worker moves the first head 20a with his left hand while holding the handle belt 29, engaging the claw holder 58 with the claw 28 ( FIG. 10 ) and connecting the mounting-side connector 42 with the head-side connector 23. This brings the back surface of the first head 20a into contact with the front surface of the first head holder 50a. Next, while still holding the handle belt 29 with his left hand, the worker inserts his right hand behind the first beam member 17a via the space 87 and pushes up the operating lever 56. This switches the first head holding portion 50a from the released state (FIGS. 10 and 11B) to the held state (FIGS. 9 and 11A), and the first head 20a is attached to the first head holding portion 50a. Then, the worker uses his or her right hand, which has been inserted behind the first beam member 17a via the space 87, to rotate the connector lever 43, which is in the raised state, back to the lower state. This completes the attachment work of the first head 20a, and the replacement work of the first head 20a.

[0056] As described above, when replacing the first head 20a, if the first wiring cover 18a is located above the first beam member 17a, the first wiring cover 18a tends to obstruct the work when accessing the first head 20a through the first opening 82a (e.g., holding the handle belt 29 with the left hand). For example, the first wiring cover 18a reduces the vertical height of the first opening 82a, making the first wiring cover 18a an obstacle to the work. However, in this embodiment, the first wiring cover 18a has the first recessed portion 19a, allowing the worker to access the first head 20a from outside the housing 11 through the space 86 above the first recessed portion 19a. Because the first recessed portion 19a is lower than the other portions of the first wiring cover 18a, the vertical height of the space 86 is relatively large. Therefore, the worker can easily access the rear first head 20a from the front side of the first beam member 17a by passing through the space 86.

[0057] Furthermore, when working on the first head 20a, the first head 20a moves to the first working position adjacent to the first recessed portion 19a, making it easier for the worker to access the first head 20a from the first opening 82a in the housing 11 via the space 86 above the first recessed portion 19a, making it easier to work on the first head 20a.

[0058] Furthermore, the first working position is a position where the right end 84 of the first opening 82a (i.e., the end opposite the first recessed portion 19a from the first working position of the first head 20a) is laterally spaced from the first head 20a. Therefore, the operator can access the first head 20a and its surroundings through a space 87 in the first opening 82a, which is on the opposite side of the first recessed portion 19a from the first head 20a. This allows access to the first head 20a and its surroundings from both the left and right sides via the spaces 86 and 87, making it easier to work on the first head 20a. In particular, in the above-described embodiment, the operator must use both hands to operate the connector lever 43 and the operating lever 56 while holding the first head 20a using the handle belt 29. Therefore, being able to access the first head 20a and its surroundings from both the left and right sides is highly significant.

[0059] Furthermore, when engaging the claw holder 58 with the claw 28 during the installation work of the first head 20a, it is necessary to visually check the claw holder 58, which is located behind the first beam member 17a and below the upper surface of the first beam member 17a. At this time, because the height of the first recessed portion 19a is lower than the other parts of the first wiring cover 18a, the vertical height of the space 86 is relatively large, making it easy to look behind and below the first beam member 17a from the space 86 and visually check.

[0060] Furthermore, the operating lever 56 of the first head holding unit 50a is disposed on one side of the first beam member 17a in the front-to-rear direction (here, rearward), with its longitudinal direction aligned with the left-to-right direction, and rotates on a plane aligned with the left-to-right direction and perpendicular to the front-to-rear direction (here, on the XZ plane) to switch the first head holding unit 50a between a holding state and a release state. In this case, because the operating lever 56 is disposed rearward of the first beam member 17a, i.e., located closer to the first head 20a being held than the first beam member 17a, the mechanism for switching between the holding state and the release state using the operating lever 56 can be easily configured. Furthermore, when the operating lever 56 is disposed rearward of the first beam member 17a in this manner, for example, when the operating lever 56 rotates on a plane aligned with the front-to-rear direction, it is necessary to move the operating lever 56 back and forth, making it difficult to rotate the operating lever 56 from the front side, i.e., from the first beam member 17a side. In contrast, in the component mounter 10 of this embodiment, switching can be performed by rotating the operating lever 56 on the XZ plane, so that the operating lever 56 can be operated by moving it up and down, making it easy for the operator to operate the operating lever 56 from the front side, i.e., the side of the first beam member 17a.

[0061] 6, when the first head holding unit 50a is in the holding state, the upper end of the operating lever 56 extends above the upper surface of the first beam member 17a, making it easier for the operator to operate the operating lever 56 when switching the first head holding unit 50a to the release state. Also, since the operating lever 56 is located forward of the first head control unit 46a and is located closer to the first beam member 17a in the front-to-rear direction, i.e., relatively close to the operator (see FIG. 7), the operator can easily operate the operating lever 56.

[0062] The replacement of the second head 20b can be performed in the same manner as the replacement of the first head 20a, and the same effects as those described in relation to the replacement of the first head 20a can be obtained. For example, since the second wiring cover 18b has the second recessed portion 19b, an operator can access the second head 20b from outside (the rear of) the housing 11 through the space above the second recessed portion 19b in the second opening 82b, making it easy to access the front second head 20b from the rear second beam member 17b side.

[0063] Furthermore, in the component mounter 10 of this embodiment, the first head 20a and the second head 20b are arranged on opposite sides of the first beam member 17a and the second beam member 17b, which is highly significant in making it easier for workers to access the first head 20a from the first beam member 17a side and the second head 20b from the second beam member 17b side.

[0064] Here, the correspondence between the components of the embodiment and the components of the present disclosure described in the claims will be clarified. In the embodiment, the first head 20a corresponds to the first head, the first beam member 17a corresponds to the first beam member, the first X-axis moving device 30a corresponds to the first axis moving device for the first head, the first wiring cover 18a corresponds to the first wiring cover, and the recessed portion 19 corresponds to the recessed portion. Furthermore, the housing 11 corresponds to the housing, the first head control unit 46a corresponds to the first control unit, and the first opening 82a corresponds to the first opening. The first head holding unit 50a corresponds to the first head holding unit, and the operating lever 56 corresponds to the operating lever. The X-axis linear guide 31 disposed on the first beam member 17a corresponds to the first guide rail, and the X-axis linear motor 32 corresponds to the first driving unit. The nozzle 21 corresponds to the nozzle, the first Z-axis moving device 70a corresponds to the first head lifting device, the first nozzle lifting device 22a corresponds to the first nozzle lifting device, the second head 20b corresponds to the second head, the second beam member 17b corresponds to the second beam member, and the second X-axis moving device 30b corresponds to the first axis moving device for the second head.

[0065] It goes without saying that the present disclosure is not limited to the above-described embodiments, and can be implemented in various forms as long as they fall within the technical scope of the present disclosure.

[0066] For example, in the above-described embodiment, the first recessed portion 19 a is provided at the end of the first wiring cover 18 a that is closer to the center in the X-axis direction, but this is not limited to this. For example, the first recessed portion 19 a may be provided at a position other than the left and right ends of the first wiring cover 18 a.

[0067] In the embodiment described above, the head control unit 46 controls the head 20 (including the nozzle lifting device 22), the X-axis moving device 30, and the Z-axis moving device 70, but this is not limiting. The head control unit 46 may control at least one of these. Those that are not controlled by the head control unit 46 may be controlled directly by the control device 90 without going through the head control unit 46.

[0068] In the above-described embodiment, the Z-axis moving device 70 raises and lowers the control unit housing unit 45 and the head holding unit 50 along with the head 20, but this is not limited to this. The Z-axis moving device 70 only needs to raise and lower at least the head 20. For example, the control unit housing unit 45 may be attached to the X-axis mover 34 and configured not to be raised or lowered, and the Z-axis moving device 70 may raise and lower the head holding unit 50 and the head 20.

[0069] In the above-described embodiment, the control unit accommodating unit 45 and the Z-axis moving device 70 were arranged on opposite sides of the head 20 and the head holding unit 50 in the left-right direction (X-axis direction), but this is not limited to this and they may also be arranged on the same side in the left-right direction (X-axis direction).

[0070] In the above-described embodiment, the first and second heads 20a, 20b each have one nozzle 21, but at least one of the first and second heads 20a, 20b may have multiple nozzles 21.

[0071] In the above-described embodiment, the mounter 10 does not necessarily have to include the second head 20b and its associated components, such as the second beam member 17b, the second X-axis cable protection member 15b, the second wiring cover 18b, the second X-axis moving device 30b, the second head control unit 46b, the second Y-axis moving device 60b, and the second Z-axis moving device 70b. Even in this case, there may be cases where an operator accesses the first head 20a from the first beam member 17a side, for example, when the housing 11 does not have the second opening 82b but has only the first opening 82a. Therefore, the first recess 19a in the first wiring cover 18a is significant in achieving the above-described effects, such as making it easier for the operator to access the first head 20a.

[0072] This specification also discloses the technical idea of ​​changing "the component mounter according to any one of claims 1 to 3" to "the component mounter according to any one of claims 1 to 4" in claim 5 as originally filed, the technical idea of ​​changing "the component mounter according to any one of claims 1 to 3" to "the component mounter according to any one of claims 1 to 5" in claim 6 as originally filed, the technical idea of ​​changing "the component mounter according to any one of claims 1 to 3" to "the component mounter according to any one of claims 1 to 6" in claim 7 as originally filed, and the technical idea of ​​changing "the component mounter according to any one of claims 1 to 3" to "the component mounter according to any one of claims 1 to 7" in claim 8 as originally filed.

[0073] The present disclosure can be used in the component mounting machine manufacturing industry and the like.

[0074] 10 Component mounter, 11 Housing, 12 Base, 13 Support stand, 14a First operation panel, 14b Second operation panel, 15 X-axis cable protection member, 15a First X-axis cable protection member, 15b Second X-axis cable protection member, 16a First Y-axis cable protection member, 16b Second Y-axis cable protection member, 17 Beam member, 17a First beam member, 17b Second beam member, 18 Wiring cover, 18a First wiring cover, 18b Second wiring cover, 19 Recessed portion, 20 Head, 20a First head, 20b Second head, 21 Nozzle, 22 Nozzle lifting / lowering device, 22a First nozzle lifting / lowering device, 22b Second nozzle lifting / lowering device, 23 Head-side connector, 25 Engagement block, 28 Claw portion, 29 Handle belt, 30 X-axis moving device, 30a First X-axis moving device, 30b REFERENCE SIGNS LIST Second X-axis moving device, 31 X-axis linear guide, 32 X-axis linear motor, 33 X-axis stator, 34 X-axis mover, 36 X-axis guide nut, 39 Moving body, 39a First moving body, 39b Second moving body, 40 Upper unit, 41 Arm portion, 42 Mounting side connector, 43 Connector lever, 45 Control unit housing unit, 45a First control unit housing unit, 45b Second control unit housing unit, 46 Head control unit, 46a First head control unit, 46b Second head control unit, 47 Control unit cover, 50 Head holding portion, 50a First head holding portion, 50b Second head holding portion, 51 Piston holding block, 52 Piston, 53 Pin, 54 Cam member, 55 Shaft member, 56 Operation lever, 58 Claw portion holder, 60 Y-axis moving device, 60a First Y-axis moving device, 60b Second Y-axis moving device, 61 Y-axis linear guide, 62 Y-axis linear motor, 63 Y-axis stator, 64 Y-axis mover, 65 Y-axis block member, 70 Z-axis moving device, 70a first Z-axis moving device, 70b second Z-axis moving device, 72 Z-axis motor, 74 ball screw, 76 belt, 82 opening, 82a first opening, 82b second opening, 83 left end portion, 84 right end portion, 85 opening cover, 85a first opening cover, 85b second opening cover, 86, 87 space, 90 control device, 95a first part camera, 95b second part camera, F feeder, S board.

Claims

1. A mounter for mounting components, comprising: a first beam member extending in a first axial direction and movable in a second axial direction intersecting the first axial direction; a first head disposed on one side of the first beam member in the second axial direction and capable of picking up the components; a first axis movement device that moves the first head along the first beam member in the first axial direction; and a first wiring cover attached to the top of the first beam member and protecting a portion of the wiring for supplying power to the first axis movement device that extends along the first beam member in the first axial direction, wherein a portion of the first wiring cover has a smaller height from the first beam member than other portions of the first wiring cover, thereby forming a recessed portion at the top that forms a space for accessing the first head.

2. A component mounter as claimed in claim 1, comprising: a housing that houses the first head, the first beam member, the first axis moving device, and the first wiring cover; and a first control unit that controls the first axis moving device to move the first head, wherein the housing has a first opening for accessing the first head from the first beam member side along the second axis direction, and the first control unit moves the first head to a first working position when working on the first head, and the first working position is a position between both ends of the first opening in the first axis direction, and a position where the first head is adjacent to the recessed portion in the first axis direction.

3. A component mounter according to claim 2, wherein the first work position is a position where the end of one of the two ends of the first opening in the first axial direction that is opposite the recessed portion with respect to the first work position is spaced apart from the first head in the first axial direction.

4. A component mounter as claimed in any one of claims 1 to 3, comprising a first head holding section configured to be switchable between a holding state in which the first head is held and a released state in which the first head is not held, and which moves in the first axial direction together with the first head by the first axis moving device in the holding state, wherein the first head holding section is positioned on one side of the first beam member in the second axial direction, and is positioned so that its longitudinal direction is along the first axial direction, and has an operating lever that switches between the holding state and the released state by rotating on a plane that is along the first axial direction and perpendicular to the second axial direction.

5. A component mounter according to any one of claims 1 to 3, comprising a first control unit that controls at least one of the first axis moving device and the first head, wherein the first axis direction and the second axis direction are perpendicular to the vertical direction, the first axis moving device has a pair of upper and lower first guide rails that are attached to the first beam member and extend parallel to each other in the first axis direction, and a first drive unit that is positioned between the pair of upper and lower first guide rails in the vertical direction and outputs a drive force for moving the first head along the first guide rails in the first axis direction, the first control unit is positioned at a position in the first axis direction relative to the first head and moves together with the first head in the first axis direction, and the height of the center of gravity of a moving body that includes part of the first axis moving device, the first head, and the first control unit and moves in the first axis direction by the drive force from the first drive unit is positioned between the pair of upper and lower first guide rails in the vertical direction.

6. A component mounter according to any one of claims 1 to 3, wherein the first axis direction and the second axis direction are directions perpendicular to the vertical direction, the first head has a nozzle for picking up the components, and the component mounter comprises: a first head lifting device that raises and lowers the first head in the vertical direction, a first nozzle lifting device that raises and lowers the nozzle in the vertical direction, and a first control unit that controls at least one of the first axis moving device, the first head lifting device, and the first nozzle lifting device, and the first control unit is located at a position in the first axis direction relative to the first head and moves in the first axis direction together with the first head.

7. A component mounter according to any one of claims 1 to 3, wherein the first axis direction and the second axis direction are directions perpendicular to the up-down direction, and the component mounter comprises: a first head lifting device that raises and lowers the first head in the up-down direction; and a first control unit that controls at least one of the first axis moving device, the first head lifting device, and the first head, wherein at least a part of the first head lifting device and the first control unit are each positioned in the first axis direction relative to the first head and move together with the first head in the first axis direction.

8. A component mounter as claimed in any one of claims 1 to 3, comprising: a second beam member disposed on one side of the first beam member in the second axis direction, extending in the first axis direction and movable in the second axis direction; and a second head disposed on the other side of the second beam member in the second axis direction and capable of picking up the component, wherein the first axis moving device is a first axis moving device for the first head, and the component mounter further comprises: a first axis moving device for the second head that moves the second head in the first axis direction along the second beam member.

9. A mounter for mounting components, comprising: a first beam member extending in a first axial direction and movable in a second axial direction intersecting the first axial direction; a first head disposed on one side of the first beam member in the second axial direction and capable of picking up the component; a first axis moving device that moves the first head along the first beam member in the first axial direction; and a first head holding section configured to be switchable between a holding state in which the first head is held and a release state in which the first head is not held, and which moves together with the first head in the first axial direction by the first axis moving device in the holding state; wherein the first head holding section is disposed on the one side of the first beam member in the second axial direction, is disposed so that its longitudinal direction is along the first axial direction, and has an operating lever that switches between the holding state and the release state by rotating on a plane that is along the first axial direction and perpendicular to the second axial direction.

10. A component mounter for mounting components, comprising: a first beam member extending in a first axial direction and movable in a second axial direction intersecting the first axial direction; a first head disposed on one side of the first beam member in the second axial direction and capable of picking up the component; a first axis movement device for moving the first head along the first beam member in the first axial direction; and a first control unit for controlling at least one of the first axis movement device and the first head, wherein the first axial direction and the second axial direction are directions perpendicular to the vertical direction, the first axis movement device having a pair of upper and lower first guide rails attached to the first beam member and extending parallel to each other in the first axial direction, and a first drive unit disposed between the pair of upper and lower first guide rails in the vertical direction and outputting a drive force for moving the first head along the first guide rails in the first axial direction, the first control unit being disposed at a position in the first axial direction relative to the first head and moving together with the first head in the first axial direction, a movable body including a part of the first axis moving device, the first head, and the first control unit, and moved in the first axis direction by a driving force from the first drive unit, the height of the center of gravity of the movable body being located between the pair of upper and lower first guide rails in the vertical direction.

11. A mounter for mounting components, comprising: a first beam member extending in a first axial direction perpendicular to the up-down direction and movable in a second axial direction perpendicular to the up-down direction and intersecting the first axial direction; a first head disposed on one side of the first beam member in the second axial direction and having a nozzle capable of picking up the component; a first axial movement device that moves the first head in the first axial direction along the first beam member; a first head lifting device that raises and lowers the first head in the up-down direction; a first nozzle lifting device that raises and lowers the nozzle in the up-down direction; and a first control unit that controls at least one of the first axial movement device, the first head lifting device, and the first nozzle lifting device, wherein the first control unit is positioned in the first axial direction relative to the first head and moves in the first axial direction together with the first head.

12. A component mounter that mounts components, comprising: a first beam member that extends in a first axial direction perpendicular to the up-down direction and is movable in a second axial direction that is perpendicular to the up-down direction and intersects with the first axial direction; a first head that is disposed on one side of the first beam member in the second axial direction and is capable of picking up the components; a first axis moving device that moves the first head in the first axial direction along the first beam member; a first head lifting device that raises and lowers the first head in the up-down direction; and a first control unit that controls at least one of the first axis moving device, the first head lifting device, and the first head, wherein at least a portion of the first head lifting device and the first control unit are each disposed at a position in the first axial direction relative to the first head and move in the first axial direction together with the first head.

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