Mounting head, component mounting device

Abstract

To provide a mounting head that easily achieves both improved productivity and improved mounting accuracy, and a component mounting device having the same.SOLUTION: Each mounting head includes a first shaft to which a suction nozzle is connected and a first lifting motor for lifting the first shaft, and the mounting head has a first rotary drive mechanism including a plurality of first nozzle units arranged in a first direction intersecting a lifting direction of the first shaft, a first rotating shaft connected to the plurality of first shafts via rotational force transmission means, and a first rotating motor for rotating the first rotating shaft. The first rotating shaft and the first rotating motor are located between the first nozzle units at both ends of the plurality of first nozzle units in the first direction.SELECTED DRAWING: Figure 4

Description

[Technical field]

[0001] The present disclosure relates to a mounting head and a component mounting apparatus including the same. [Background technology]

[0002] 2. Description of the Related Art Conventionally, component mounting apparatuses are known that hold components with a nozzle of a mounting head and mount the components on a board (see, for example, Patent Document 1).

[0003] The mounting head of the component mounting device of Patent Document 1 includes a plurality of shafts and a plurality of lifting motors for respectively raising and lowering the plurality of shafts, and further includes a rotating shaft connected to the plurality of shafts via a belt and a rotary motor for rotating the rotating shaft. In this configuration, the plurality of shafts are arranged in a line, and the rotary motor is arranged outside the plurality of shafts in the arrangement direction of the shafts. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2022-110914 A Summary of the Invention [Problem to be solved by the invention]

[0005] In the mounting head of Patent Document 1, the rotary motor, which is a heavy object, is located away from the center of the mounting head, and large centrifugal forces act on the mounting head when it moves or stops, making it prone to vibration. The faster the mounting head moves, the stronger the centrifugal forces act and the more likely it is to cause vibration, so there is room for improvement in terms of achieving both improved productivity and improved mounting accuracy.

[0006] Therefore, an object of the present disclosure is to solve the above-mentioned problems and to provide a mounting head that can easily achieve both improved productivity and improved mounting accuracy, and a component mounting apparatus equipped with the same. [Means for solving the problem]

[0007] In order to achieve the above-mentioned objective, the mounting head of the present disclosure comprises a plurality of first nozzle units, each of which comprises a first shaft to which a suction nozzle is connected and a first lifting motor for raising and lowering the first shaft, arranged in a first direction intersecting the lifting direction of the first shaft, a first rotating shaft connected to the plurality of first shafts via a rotational force transmission means, and a first rotating motor for rotating the first rotating shaft, and the first rotating shaft and the first rotating motor are positioned between the first nozzle units at both ends of the plurality of first nozzle units in the first direction.

[0008] In addition, the component mounting device of the present disclosure includes the mounting head and a mounting machine main body to which the mounting head is attached, the mounting machine main body including a first linear rail for running the mounting head in the first direction, and a mounting bracket having an engagement portion that engages with the first linear rail, and the mounting head is attached to the mounting bracket in a second direction that intersects the lifting and lowering direction and the first direction. Effect of the Invention

[0009] According to the present disclosure, it becomes easier to achieve both improved productivity and improved mounting accuracy. [Brief description of the drawings]

[0010] [Figure 1] FIG. 1 is a schematic perspective view of a component mounting apparatus according to an embodiment; [Diagram 2] 1 is a schematic plan view of a component mounting apparatus according to an embodiment; [Diagram 3] Schematic front view of a mounting head according to an embodiment. [Figure 4] FIG. 1 is a schematic plan view of a mounting head according to an embodiment; [Diagram 5] 1 is a schematic side view of a mounting head according to an embodiment; [Figure 6] FIG. 1 is a schematic front view showing the positional relationship between a rotary motor and an engagement portion in a mounting head mounted state according to an embodiment; DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] According to a first aspect of the present disclosure, there is provided a mounting head comprising: a first rotation drive mechanism including a plurality of first nozzle units, each of which comprises a first shaft to which a suction nozzle is connected and a first lifting motor for raising and lowering the first shaft, and which are arranged in a first direction intersecting the lifting direction of the first shaft; a first rotating shaft connected to the plurality of first shafts via a rotational force transmission means; and a first rotating motor for rotating the first rotating shaft, wherein the first rotating shaft and the first rotating motor are positioned between the first nozzle units at both ends of the plurality of first nozzle units in the first direction.

[0012] According to a second aspect of the present disclosure, there is provided the mounting head described in the first aspect, wherein, when viewed from the lifting direction, the mounting head is attached to the mounting machine body toward a second direction intersecting the first direction, and the first rotation shaft and the first rotation motor are positioned at a position offset in the second direction relative to the multiple first nozzle units.

[0013] According to a third aspect of the present disclosure, there is provided a mounting head as described in the second aspect, further comprising a plurality of air control devices provided corresponding to each of the first shafts so as to control the air flow of each of the suction nozzles, the plurality of air control devices being arranged along the first direction at positions offset in the second direction with respect to the plurality of first nozzle units, and the plurality of air control devices including a first air control device and a second air control device forming a gap through which the rotational force transmission means can pass.

[0014] According to a fourth aspect of the present disclosure, there is provided the mounting head according to the third aspect, wherein the first rotation shaft is disposed in the gap.

[0015] According to a fifth aspect of the present disclosure, there is provided a mounting head described in any one of the first to fourth aspects, wherein the multiple first nozzle units are arranged in two rows at different positions in the lifting and lowering direction and a second direction intersecting the first direction.

[0016] According to a sixth aspect of the present disclosure, there is provided a method for manufacturing a semiconductor device comprising the steps of: providing a plurality of second nozzle units, each of which includes a second shaft to which a suction nozzle is connected and a second lifting motor for lifting and lowering the second shaft; and being arranged side by side in the first direction and disposed at different positions in the first direction with respect to the plurality of first nozzle units; There is provided a mounting head described in any one of the first to fifth aspects, further comprising a second rotation drive mechanism including a second rotating shaft connected to the plurality of second shafts via a rotational force transmission means, and a second rotating motor that rotates the second rotating shaft, wherein when viewed from the lifting direction, the second rotating shaft and the second rotating motor are positioned between the second nozzle units at both ends of the plurality of second nozzle units in the first direction.

[0017] According to a seventh aspect of the present disclosure, there is provided the mounting head according to any one of the first to sixth aspects, wherein the rotational force transmission means includes a belt.

[0018] According to an eighth aspect of the present disclosure, there is provided a component mounting device comprising: a mounting head according to any one of the first to seventh aspects; and a mounting machine main body to which the mounting head is attached, the mounting machine main body comprising a first linear rail extending in the first direction and a mounting bracket having an engagement portion that is movably engaged with the first linear rail, and the mounting head is attached to the mounting bracket.

[0019] According to a 9th aspect of the present disclosure, there is provided a component mounting device as described in the 8th aspect, wherein, when the mounting head is attached to the mounting bracket, the engagement portion has a first end and a second end as end portions in the first direction, and the first rotating shaft and the first rotating motor are positioned between the first end and the second end in the first direction.

[0020] According to a tenth aspect of the present disclosure, there is provided a component mounting device as described in the eighth or ninth aspect, wherein, when the mounting head is attached to the mounting bracket, the engagement portion has a first engagement portion and a second engagement portion spaced apart in the first direction, and the first rotating shaft and the first rotating motor are positioned between the first engagement portion and the second engagement portion in the first direction.

[0021] According to an 11th aspect of the present disclosure, there is provided a component mounting device described in any one of the 8th to 10th aspects, wherein, when the mounting head is attached to the mounting bracket, the engagement portion has an upper end and a lower end as end portions in the lifting and lowering direction, and the first rotating motor is positioned between the upper end and the lower end in the lifting and lowering direction.

[0022] According to a twelfth aspect of the present disclosure, there is provided a component mounting device described in any one of the eighth to eleventh aspects, wherein, when viewed from the first direction with the mounting head attached to the mounting bracket, each of the first lifting motors and the first rotating motor are positioned relative to the engagement portion in a position opposite to the lifting direction and a second direction that intersects the first direction.

[0023] According to a thirteenth aspect of the present disclosure, there is provided the component mounting device according to any one of the eighth to twelfth aspects, wherein the engagement portion has a bearing that engages with the first linear rail.

[0024] According to a 14th aspect of the present disclosure, there is provided a component mounting device described in any one of the 8th to 13th aspects, further comprising a first moving mechanism that moves the mounting head in the first direction along the first linear rail, and a second moving mechanism that moves the first moving mechanism in the second direction along a second linear rail extending in a second direction intersecting the first direction.

[0025] According to a 15th aspect of the present disclosure, there is provided a component mounting device described in any one of the 8th to 14th aspects, further comprising a block that holds the multiple first nozzle units and the first rotation drive mechanism, and the mounting head is configured to be attached to the mounting machine main body by directly or indirectly fixing the block to the mounting bracket.

[0026] (Embodiment) Hereinafter, exemplary embodiments of a mounting head and a component mounting device according to the present disclosure will be described with reference to the accompanying drawings. The present disclosure is not limited to the specific configurations of the following embodiments, and configurations based on similar technical ideas are included in the present disclosure. The configurations, shapes, etc. described below are examples for explanation purposes, and can be appropriately changed depending on the specifications of the mounting head and the component mounting device.

[0027] In the following, corresponding elements in each drawing are given the same reference numerals, and duplicated explanations are omitted. In the following, two axes perpendicular to each other in a horizontal plane are defined as the X-axis direction in the substrate transport direction and the Y-axis direction perpendicular to the substrate transport direction, and the height direction perpendicular to the horizontal plane is defined as the Z-axis direction.

[0028] First, the configuration of a component mounting apparatus 1 will be described with reference to Fig. 1. Fig. 1 is a schematic perspective view showing a component mounting apparatus 1 of an embodiment.

[0029] The component mounting apparatus 1 has a function of performing a component mounting operation of mounting components (electronic components) such as dies and IC chips supplied from a component supply unit 4 onto a substrate P. The component mounting apparatus 1 constitutes a component mounting system that mounts components onto the substrate P.

[0030] A board transport mechanism 2 is disposed in the center of the base 1a along the X-axis direction. The board transport mechanism 2 transports the board P carried in from upstream along the X-axis direction and positions it at a predetermined mounting work position. The board transport mechanism 2 carries out the board P downstream after component mounting work has been completed.

[0031] Component supply units 4 are arranged on both sides of the board transport mechanism 2 in the Y-axis direction. In each component supply unit 4, multiple tape feeders 5 are arranged side by side along the X-axis direction. The tape feeders 5 feed the carrier tape containing the components by pitch feeding, and supply the components to a predetermined component supply position.

[0032] In FIG. 1, a Y-axis moving table 7 equipped with a Y-axis linear drive mechanism is arranged along the Y-axis direction at one end of the base 1a in the X-axis direction. The Y-axis moving table 7 includes a beam member 7a, and a linear rail 8 extending in the Y-axis direction is provided on the beam member 7a. The linear rails 8 are provided in two stages, one above the other, and linear blocks 9 provided on two mounting brackets 10 arranged in a vertical position are engaged with each other so as to be slidable in the Y-axis direction. Each of the linear blocks 9 has a bearing as an engagement portion that engages with the linear rail 8. A first X-axis moving table 11A and a second X-axis moving table 11B equipped with an X-axis linear drive mechanism are respectively coupled to the two mounting brackets 10.

[0033] Each of the first X-axis moving table 11A and the second X-axis moving table 11B includes a beam member 11a. A linear rail 12 extending in the X-axis direction is provided horizontally on the beam member 11a. A mounting bracket 13 disposed vertically is attached to the linear rail 12 via a bearing (not shown) of a linear block so as to be slidable in the X-axis direction.

[0034] A first mounting head 14A and a second mounting head 14B are attached to the mounting bracket 13 engaged with the X-axis moving tables 11A and 11B. The first mounting head 14A and the second mounting head 14B are each moved in the X-axis direction by a linear drive mechanism (not shown) coupled to the mounting bracket 13.

[0035] The Y-axis moving table 7, the first X-axis moving table 11A, and the second X-axis moving table 11B constitute a head moving means for moving the mounting heads 14A, 14B between the component supply unit 4 and the board transport mechanism 2.

[0036] The X-axis moving tables 11A and 11B equipped with the X-axis linear drive mechanism correspond to a first moving mechanism that moves the mounting heads 14A and 14B in the X-axis direction (first direction). The Y-axis moving table 7 equipped with the Y-axis linear drive mechanism corresponds to a second moving mechanism that moves the X-axis moving tables 11A and 11B (first moving mechanism) and the mounting heads 14A and 14B in the Y-axis direction (second direction).

[0037] Among the components of the component mounting apparatus 1, the components other than the mounting heads 14A and 14B correspond to the "mounting machine main body." The mounting heads 14A and 14B are attached to the mounting machine main body by being attached and fixed to the mounting bracket 13 of the mounting machine main body.

[0038] A component recognition camera 6 is provided between each of the board transport mechanisms 2 and the component supply units 4. Mounting heads 14A and 14B, which have taken out components from their respective component supply units 4, move above the component recognition camera 6, thereby acquiring images of the components held by mounting heads 14A and 14B. The acquired images are subjected to recognition processing to detect any misalignment of the components while they are held by mounting heads 14A and 14B.

[0039] As shown in Fig. 2, a board recognition camera 16 that moves integrally with the mounting heads 14A and 14B is attached. The board recognition camera 16 is attached to the mounting bracket 13 at a position below the X-axis moving tables 11A and 11B with the imaging optical axis facing downward. The board recognition camera 16 moves above the board P together with the mounting heads 14A and 14B to capture an image of the board P. By performing recognition processing on the captured image, position correction is performed when mounting the components based on the detection results of the component positional deviation and the detection results of the mounting point positional deviation described above. The position correction includes a rotational alignment that aligns the rotational position of the component around the θ axis to the correct direction.

[0040] Next, the detailed configuration of the mounting heads 14A and 14B will be described with reference to FIGS.

[0041] Fig. 3 is a schematic front view of the mounting head 14A (14B), Fig. 4 is a schematic plan view of the mounting head 14A (14B), and Fig. 5 is a schematic side view showing the positional relationship between the lift motor 23, the rotation motor 61, and the engagement portion 90 in the mounting head 14A (14B).

[0042] The mounting heads 14A and 14B have the same structure, and each includes a plurality of (here, 16) nozzle units 15. The nozzle unit 15 is configured by supporting a plurality of shafts 24, which are rotatable about their axes and movable up and down, in a vertical position on a first block 82 provided at the lower end of the mounting bracket 13.

[0043] As shown in FIG. 3, each of the nozzle units 15 includes a nozzle mounting portion 20a, a suction nozzle 21, a lifting motor 23, and a shaft 24.

[0044] The nozzle mounting part 20a is a member for detachably mounting the suction nozzle 21. The suction nozzle 21 is a member capable of suctioning a component when mounted on the nozzle mounting part 20a. An opening for suction is provided on the bottom surface of the suction nozzle 21, and negative pressure for suction is selectively supplied to this opening.

[0045] The nozzle mounting part 20a is provided at the lower end of the shaft 24. The shaft 24 is an axial member extending in the Z-axis direction, and is driven to move up and down by the lift motor 23. The nozzle mounting part 20a is provided at the lower end of the shaft 24, and the upper end of the shaft 24 is connected to the lift motor 23.

[0046] The lift motor 23 is a motor for lifting and lowering the shaft 24 along the Z-axis direction. When the lift motor 23 lifts and lowers the shaft 24, the nozzle attachment part 20a and the suction nozzle 21 connected to the shaft 24 are lifted and lowered together (arrow D1).

[0047] The lift motor 23 includes a linear motor 30 and an encoder 32 .

[0048] The linear motor 30 is a motor unit for raising and lowering the shaft 24. The encoder 32 is a member that outputs encoder pulses (position signals) that indicate the distance and direction of the raising and lowering of the shaft 24 as the shaft 24 rises and falls. The encoder pulses output by the encoder 32 are used as height information of the suction nozzle 21.

[0049] Each of the mounting heads 14A and 14B in this embodiment has a total of 16 nozzle units 15, and as shown in FIG. 4, eight nozzle units 15 are arranged in the X-axis direction and two rows are arranged along the Y-axis direction.

[0050] In this embodiment, of the total 16 nozzle units 15, they are classified into a group of eight nozzle units 15 (first nozzle units) on the left side X1 of the paper shown in Figure 4, and a group of eight nozzle units 15 (second nozzle units) on the right side X2 of the paper.

[0051] A pulley 57 is attached to each of the shafts 24 of the nozzle units 15, and a belt 58 is connected to the pulleys 57.

[0052] Pulley 57 rotates integrally with shaft 24. Pulley 57 and shaft 24 mesh with each other so as to transmit a rotational force in a rotational direction R1 (FIG. 3), and are connected so as not to transmit the up and down movement of shaft 24 to pulley 57.

[0053] The belt 58 is a belt for synchronously rotating the multiple pulleys 57. The belt 58 is connected to a pulley 63 of a rotation drive mechanism 59 (FIGS. 4 and 5) described later. The rotation force of the rotation drive mechanism 59 is transmitted to the shaft 24 via the pulleys 63 and 57. The belt 58 functions as a "rotation force transmission means."

[0054] The rotation drive mechanism 59 shown in FIGS. 4 and 5 is a mechanism for synchronously rotating the multiple shafts 24 described above, and includes a rotation motor 61, a rotation shaft 62, and a pulley 63, as shown in FIG.

[0055] The rotary motor 61 is a motor for rotating the rotary shaft 62 in a rotation direction R2. The rotary shaft 62 is driven to rotate in the rotation direction R2 around the Z-axis direction. The rotary motor 61 has an encoder (not shown) built in, similar to the lift motor 23. A pulley 63 is attached to the rotary shaft 62, and the above-mentioned belt 58 is connected to the pulley 63.

[0056] When the rotary motor 61 rotates the rotary shaft 62 and the pulley 63 in the rotational direction R2, the belt 58 connected to the pulley 63 rotates, and the multiple pulleys 57 and multiple shafts 24 connected to the belt 58 rotate together in the rotational direction R1.

[0057] In this embodiment, a total of two rotation drive mechanisms 59 are provided. As shown in Fig. 4, a rotation drive mechanism 59 is provided on the left side X1 of the paper, and a rotation drive mechanism 59 is provided on the right side X2 of the paper. The two rotation drive mechanisms 59 are disposed with a gap in the X-axis direction. A belt 58 is connected to the pulley 63 of the rotation drive mechanism 59 on the left side X1 of the paper, and another belt 58 is connected to the pulley 63 of the rotation drive mechanism 59 on the right side X2 of the paper.

[0058] The belt 58 on the left side X1 of the drawing is connected to the pulleys 57 of the eight nozzle units 15 on the left side X1 of the drawing, and the belt 58 on the right side X2 of the drawing is connected to the pulleys 57 of the eight nozzle units 15 on the right side X2 of the drawing. When the rotating shaft 62 and pulley 63 of the rotary drive mechanism 59 on the left side X1 of the drawing are rotated, the eight shafts 24 of the eight nozzle units 15 on the left side X1 of the drawing rotate together via the belt 58. Similarly, when the rotating shaft 62 and pulley 63 of the rotary drive mechanism 59 on the right side X2 of the drawing are rotated, the eight shafts 24 of the eight nozzle units 15 on the right side X2 of the drawing rotate together via the belt 58.

[0059] The mounting head 14A is further provided with a plurality of air control devices 70. The air control devices 70 are not shown in the drawings other than FIG.

[0060] The air control device 70 is a member for controlling the supply of negative pressure to the suction nozzle 21 of the nozzle unit 15. The air control device 70 is connected to the air flow path of the suction nozzle 21 via a hose or the like (not shown), and has a function of switching between a state in which negative pressure is supplied to the air flow path (negative pressure state) and a state in which negative pressure is not supplied (atmospheric pressure state). The air control device 70 of this embodiment has a solenoid valve capable of switching between the negative pressure state and the atmospheric pressure state, and a flow sensor. Depending on the measurement result of the flow sensor, it can be determined whether the suction nozzle 21 is in a state of suctioning a component or not.

[0061] An air control device 70 is provided corresponding to each nozzle unit 15. Sixteen air control devices 70 are provided corresponding to the 16 nozzle units 15. Each air control device 70 is provided adjacent to the corresponding nozzle unit 15, and in the example shown in Fig. 4, eight air control devices 70 are arranged in the X-axis direction and are arranged in two rows along the Y-axis direction.

[0062] In this embodiment, the gap is widened between certain adjacent air control devices 70. In the example shown in Fig. 4, the gap S1 between two adjacent air control devices 70 on the left side X1 of the page is widened, and the gap S2 between two adjacent air control devices 70 on the right side X2 of the page is widened. The gaps S1 and S2 are widened by making the gap between the two adjacent air control devices 70 larger than the gaps between other two adjacent air control devices 70.

[0063] In the plan view shown in Figure 4 (i.e., when viewed from the Z-axis direction), gaps S1 and S2 are formed by the row of air control devices 70 closer to the engagement portion 90 (in the +Y-axis direction) out of the two rows of air control devices 70.

[0064] 4, a part of the rotation drive mechanism 59 and the belt 58 are disposed in the gaps S1 and S2, respectively. By disposing the rotation drive mechanism 59 and the belt 58 in the gaps S1 and S2 when viewed from the Z-axis direction, the rotation motor 61 of the rotation drive mechanism 59, which is a heavy object, can be disposed in a position close to an engagement portion 90, which will be described later in detail.

[0065] Gaps S3 and S4 are provided at positions facing the gaps S1 and S2 in the Y-axis direction. The gaps S3 and S4 are formed by the air control devices 70 in the row farther from the engagement portion 90 (-Y-axis direction) out of the two rows of air control devices 70. The rotation drive mechanisms 59 and belts 58 are not arranged in the gaps S3 and S4, and the gaps S3 and S4 are provided to make the balance of weight and arrangement in the mounting heads 14A and 14B closer to equal. The air control devices 70 in the row farther from the engagement portion 90 may be arranged closely at equal intervals without providing the gaps S3 and S4.

[0066] The first block 82 is a bearing block that holds the shafts 24 of the multiple nozzle units 15 in a state in which they can be raised and lowered and rotated. As shown in Fig. 5, the first block 82 of this embodiment further holds the rotation shaft 62 of the rotation drive mechanism 59 in a state in which they can be raised and lowered and rotated, in addition to the shafts 24 of the nozzle units 15. The first block 82 holds both the multiple nozzle units 15 and the rotation drive mechanism 59. This is not the only case, and the rotation drive mechanism may be held by using another block without engaging the rotation shaft 62 of the rotation drive mechanism 59 with the first block 82.

[0067] 4, a second block 84 is provided in addition to the first block 82. The second block 84 is a block for attaching the mounting heads 14A, 14B to the mounting bracket 13 of the mounting machine main body. The mounting heads 14A, 14B are attached to the mounting machine main body by directly or indirectly fixing the second block 84 to the mounting bracket 13 using a fixing means such as a screw. The attachment direction Y1 when attaching the mounting heads 14A, 14B to the mounting machine main body is the +Y-axis direction.

[0068] In the example shown in FIG. 4, the second block 84 is provided as a pair, separated on the left and right, however, the configuration and position are not limited to this and any configuration and position may be adopted as long as the mounting heads 14A, 14B can be fixed to the attachment bracket 13.

[0069] 4, two types of blocks 82, 84 are shown in schematic form. The two types of blocks 82, 84 may be directly connected to each other, or may be indirectly connected to each other via another block. Alternatively, a separate block (manifold) that integrally holds the multiple nozzle units 15 and the multiple air control devices 70 may be provided, and the two blocks 82, 84 may be directly or indirectly connected to the separate block to form an integrated configuration.

[0070] The engagement portion 90 is a member (which may be referred to as a linear block) that engages with the linear rail 12 shown in Fig. 1 so as to be movable in the X-axis direction, and is provided on the mounting bracket 13. When the engagement portion 90 is engaged with the linear rail 12, the mounting heads 14A and 14B attached to the mounting bracket 13 can move integrally in the X-axis direction along the linear rail 12 (see arrows X3 and X4 in Fig. 3). The engagement portion 90 in this embodiment has a bearing that can move linearly in the X-axis direction.

[0071] In this embodiment, there are provided a plurality of engaging portions 90. As shown in Fig. 3, a total of four engaging portions 90A to 90D are provided. Fig. 3 shows the positional relationship between the plurality of engaging portions 90, the plurality of nozzle units 15, and the rotation motor 61 in a state in which the mounting heads 14A and 14B are attached to the attachment bracket 13.

[0072] The engagement portions 90A and 90B are a pair of engagement portions that engage with the upper linear rail 12 and are arranged with a gap therebetween in the X-axis direction. The engagement portions 90C and 90D are a pair of engagement portions that engage with the lower linear rail 12 and are arranged with a gap therebetween in the X-axis direction.

[0073] The two engagement portions 90A, 90C on the left side X1 of the drawing are provided on the mounting bracket 13 so as to overlap each other in the X-axis direction. The two engagement portions 90B, 90D on the right side X2 of the drawing are provided on the mounting bracket 13 so as to overlap each other in the X-axis direction.

[0074] In the mounting heads 14A and 14B having the above-mentioned configuration, the motors are particularly heavy. Among the components of the mounting heads 14A and 14B, the lift motor 23 of the nozzle unit 15 and the rotary motor 61 of the rotary drive mechanism 59 are particularly heavy compared to the other components.

[0075] On the other hand, since the mounting heads 14A, 14B move at high speed in the X-axis direction with multiple engagement portions 90A-90D engaged with the linear rail 12, if the lifting motor 23 or the rotation motor 61 is located away from the engagement portions 90A-90D, a large centrifugal force is generated when the mounting heads 14A, 14B move and stop, making it easier for vibrations to occur.

[0076] In the mounting heads 14A and 14B of this embodiment, 16 lift motors 23 and two rotary motors 61 are disposed at positions facing an area surrounded by the multiple engagement parts 90A to 90D when viewed from the Y-axis direction as shown in Fig. 3. This makes it possible to suppress centrifugal force and vibration when the mounting heads 14A and 14B move and stop, leading to improved mounting accuracy.

[0077] In this embodiment, sixteen lift motors 23 and two rotary motors 61 are provided, but the weight of each of the rotary motors 61 is heavier than that of the lift motors 23. As shown in Fig. 4, the two rotary motors 61 are arranged in positions offset in the mounting direction Y1 from the multiple lift motors 23 (shafts 24) in the Y-axis direction. With this arrangement, the two rotary motors 61 can be arranged closer to the engagement portion 90, and the generation of centrifugal force and vibration when the mounting heads 14A and 14B move and stop can be effectively suppressed.

[0078] 4, a configuration is conceivable in which a rotary motor is disposed in an area A2 on the outside in the arrangement direction (X-axis direction) of the multiple nozzle units 15. In contrast to this configuration, in the mounting heads 14A and 14B of the present embodiment, the rotary drive mechanism 59 including the rotary motor 51 is disposed inside the nozzle units 15 at both ends in the arrangement direction (X-axis direction) of the multiple nozzle units 15, so that the rotary drive mechanism 59 can be disposed in a position closer to the engagement portion 90.

[0079] In this embodiment, the gaps S1 and S2 of the air control device 70 are widened to ensure a space for arranging the rotation drive mechanism 59. This makes it possible to arrange the rotation drive mechanism 59 in a position close to the engagement portion 90 while preventing interference between the rotation drive mechanism 59 and the belt 58 and the air control device 70.

[0080] In particular, by arranging the rotation drive mechanism 59 in the gaps S1, S2 when viewed from the Z axis direction, it is possible to reduce the dimension of the mounting heads 14A, 14B in the Y axis direction and arrange other components such as the nozzle unit 15 in positions closer to the engagement portion 90, compared to the case where the rotation drive mechanism is arranged in a position outside the gaps S1, S2. This makes it possible to further suppress centrifugal force and vibration when the mounting heads 14A, 14B move and stop.

[0081] In this embodiment, when viewed from the Z-axis direction, the rotary motor 61, the rotary shaft 62, and the pulley 63 of the rotary drive mechanism 59 all overlap with the gaps S1 and S2, but the rotary shaft 62 and the pulley 63 are at the same height as the gaps S1 and S2, whereas the rotary motor 61 is disposed above the gaps S1 and S2. In other words, the rotary shaft 62 and the pulley 63 are disposed in the gaps S1 and S2, whereas the rotary motor 61 is not disposed in the gaps S1 and S2.

[0082] FIG. 6 is a schematic front view showing the positional relationship between the engagement parts 90A to 90D and the rotation drive mechanism 59 in a state in which the mounting heads 14A and 14B are attached to the attachment bracket 13. As shown in FIG.

[0083] As shown in FIG. 6, when viewed from the Y-axis direction, all of the rotary motors 61 of the rotary drive mechanism 59 are disposed inside the area A1 surrounded by the engagement portions 90A to 90D. In other words, the rotary motor 61 is disposed at a position facing the area A1 in the Y-axis direction. In the example shown in FIG. 6, the entire rotary motor 61 is included in the area A1. The rotary motor 61 has a center of gravity 64, which is also included in the area A1. With this arrangement, it is possible to further suppress the occurrence of centrifugal force and vibration when the mounting heads 14A and 14B having the rotary motors 61 move in the X-axis direction along the linear rail 12.

[0084] In the example shown in Fig. 6, in the area A1 surrounded by the multiple engagement parts 90A to 90D, the engagement parts 90A and 90C on the left side X1 of the drawing correspond to the first end in the X-axis direction, and the engagement parts 90B and 90D on the right side X2 of the drawing correspond to the second end in the X-axis direction. In this configuration, by disposing two rotation drive mechanisms 59 including two rotation motors 61 between the first end and the second end of the area A1 in the X-axis direction, it is possible to effectively suppress the occurrence of centrifugal force and vibration when the mounting heads 14A and 14B move. Note that the first end and the second end of the area A1 correspond to the first end and the second end of the multiple engagement parts 90.

[0085] 6, in an area A1 surrounded by a plurality of engaging portions 90A to 90D, the engaging portions 90A and 90B correspond to one end (i.e., the upper end) in the Z-axis direction, and the engaging portions 90C and 90D correspond to the other end (i.e., the lower end) in the Z-axis direction. In this configuration, by disposing the rotary motor 61 of the rotary drive mechanism 59 between the upper and lower ends of the area A1 in the Z-axis direction, it is possible to effectively suppress the occurrence of centrifugal force and vibration when the mounting heads 14A and 14B move. Note that the upper and lower ends of the area A1 correspond to the upper and lower ends of the plurality of engaging portions 90.

[0086] 6, a part of the rotary motor 61 may be included in the area A1, and the other part may be located outside the area A1. Even in such a case, by positioning the center of gravity 64 of the rotary motor 61 inside the area A1, it is possible to effectively suppress the occurrence of centrifugal force and vibration when the mounting heads 14A and 14B move.

[0087] 5, when viewed from the X-axis direction, the rotation drive mechanism 59 is disposed between the plurality of nozzle units 15 and the plurality of engagement portions 90. In particular, the rotation drive mechanism 59 is disposed between the nozzle units 15 in the row of the two rows of nozzle units 15 that is closer to the engagement portions 90 (in the +Y-axis direction) and the engagement portions 90. This allows the rotation drive mechanism 59 having the rotation motor 61 to be disposed at a position closer to the engagement portions 90.

[0088] 5, both the lift motor 23 and the rotation motor 61 are disposed at positions facing the multiple engagement portions 90 in the Y-axis direction. This makes it possible to effectively suppress the occurrence of centrifugal force and vibration when the mounting heads 14A and 14B move.

[0089] As described above, by disposing the rotation drive mechanism 59 including the rotation motor 61 between the nozzle units 15 at both ends of the arrangement direction (X-axis direction) of the multiple nozzle units 15, the occurrence of centrifugal force and vibration when the mounting heads 14A and 14B move can be effectively suppressed, leading to improved mounting accuracy. Even if the movement speed of the mounting heads 14A and 14B is increased, the occurrence of centrifugal force and vibration can be suppressed, reducing mounting errors and making it easier to achieve both improved productivity and improved mounting accuracy. In this way, it is possible to realize a mounting head 14A that makes it easier to achieve both improved productivity and improved mounting accuracy, and a component mounting device 1 equipped with the same.

[0090] (Action and effect) As described above, the mounting heads 14A and 14B of this embodiment each include a shaft 24 (first shaft) to which the suction nozzle 21 is connected and a lifting motor 23 (first lifting motor) for raising and lowering the shaft 24, and include a plurality of nozzle units 15 (first nozzle units) arranged in a line in the X-axis direction (first direction) intersecting the Z-axis direction (lifting direction) of the shaft 24, a rotation drive mechanism 59 including a rotating shaft 62 (first rotating shaft) connected to the plurality of shafts 24 via a belt 58 (rotational force transmission means) and a rotating motor 61 (first rotating motor) for rotating the rotating shaft 62, and the rotating shaft 62 and the rotating motor 61 are positioned between the nozzle units 15 at both ends of the plurality of nozzle units 15 in the X-axis direction.

[0091] With this configuration, it is possible to dispose the rotary motor 61, which is a heavy object, in a position close to the engagement portion 90, and it is possible to suppress the centrifugal force and vibration when the mounting heads 14A, 14B move and stop. This makes it easier to achieve both improved productivity and improved mounting accuracy.

[0092] Furthermore, in the mounting heads 14A and 14B of the embodiment, when viewed from the Z-axis direction (lifting direction), the mounting heads 14A and 14B are attached to the mounting machine body toward an attachment direction Y1 (second direction) intersecting the X-axis direction (first direction), and the rotating shaft 62 (first rotating shaft) and the rotating motor 61 (first rotating motor) are disposed at a position offset in the attachment direction Y1 with respect to the multiple nozzle units 15 (first nozzle units). With this configuration, it is possible to dispose the rotating motor 61 at a position close to the engaging portion 90, and centrifugal force and vibration when the mounting heads 14A and 14B move and stop can be further suppressed.

[0093] Moreover, the mounting heads 14A and 14B of the embodiment further include a plurality of air control devices 70 provided corresponding to each of the shafts 24 (first shafts) so as to control the air flow of each of the suction nozzles 21, the plurality of air control devices 70 being arranged along the X-axis direction (first direction) at positions shifted in the mounting direction Y1 (second direction) with respect to the plurality of nozzle units 15 (first nozzle units), and the plurality of air control devices 70 include two air control devices 70 (first air control device 70 and second air control device 70) having gaps S1 and S2 therebetween for allowing the belt 58 (rotational force transmission means) to pass through. With this configuration, it is possible to arrange the rotation motor 61 in a position close to the engagement portion 90 while preventing interference between the air control devices 70 and the belt 58.

[0094] In addition, in the mounting heads 14A and 14B of the embodiment, the rotating shaft 62 (first rotating shaft) is disposed in the gaps S1 and S2. With this configuration, the dimension of the mounting heads 14A and 14B in the Y-axis direction can be reduced compared to a configuration in which the rotating shaft 62 is disposed in a position outside the gaps S1 and S2, and components other than the rotation drive mechanism can be disposed in positions closer to the engagement portion 90.

[0095] Furthermore, in the mounting heads 14A and 14B of the embodiment, the multiple nozzle units 15 are provided in two rows at different positions in the Y-axis direction (second direction) that intersects with the Z-axis direction (lifting direction) and the X-axis direction (first direction). With this configuration, the number of nozzle units 15 can be increased while reducing the dimension of the mounting heads 14A and 14B in the X-axis direction.

[0096] In addition, the mounting heads 14A and 14B of the embodiment each include a shaft 24 (second shaft) to which the suction nozzle 21 is connected and a lifting motor 23 (second lifting motor) for lifting and lowering the shaft 24 (second shaft), and further include a plurality of nozzle units 15 (second nozzle units) arranged in a line in the X-axis direction (first direction) and disposed at different positions in the X-axis direction relative to the plurality of nozzle units 15 (first nozzle units), and a rotation drive mechanism 59 (second rotation drive mechanism) including a rotation shaft 62 (second rotation shaft) connected to the plurality of shafts 24 (second shafts) via a belt 58 (rotational force transmission means) and a rotation motor 61 (second rotation motor) for rotating the rotation shaft 62 (second rotation shaft), and when viewed from the Z-axis direction (lifting direction), the rotation shaft 62 (second rotation shaft) and the rotation motor 61 (second rotation motor) are positioned between the nozzle units 15 at both ends of the plurality of nozzle units 15 (second nozzle units) in the X-axis direction. With this configuration, it is possible to position the two heavy rotary motors 61 close to the engagement portion 90, and the centrifugal force and vibration generated when the mounting heads 14A, 14B move and stop can be suppressed, making it easier to achieve both improved productivity and improved mounting accuracy.

[0097] In the mounting heads 14A and 14B of the embodiment, the rotational force transmission means includes the belt 58. According to such a configuration, the rotation drive mechanism 59 can be connected to the shaft 24 of the nozzle unit 15 with an inexpensive configuration.

[0098] As described above, the component mounting apparatus 1 of this embodiment comprises mounting heads 14A, 14B and a mounting machine main body to which the mounting heads 14A, 14B are attached. The mounting machine main body comprises a linear rail 12 (first linear rail) extending in the X-axis direction (first direction) and a mounting bracket 13 having an engagement portion 90 that engages with the linear rail 12 so as to be able to run on the linear rail 12. The mounting heads 14A, 14B are attached to the mounting bracket 13.

[0099] According to such a configuration, it is possible to realize a component mounting apparatus 1 that can easily achieve both improved productivity and improved mounting accuracy.

[0100] Furthermore, in the mounting heads 14A and 14B of the embodiment, when the mounting heads 14A and 14B are attached to the attachment bracket 13, the engagement portion 90 has a first end and a second end as end portions in the X-axis direction (first direction), and the rotation shaft 62 (first rotation shaft) and the rotation motor 61 (first rotation motor) are located between the first end and the second end in the X-axis direction. With this configuration, the rotation motor 61 can be located closer to the engagement portion 90, and centrifugal force and vibrations generated when the mounting heads 14A and 14B move and stop can be further suppressed.

[0101] Furthermore, in the mounting heads 14A and 14B of the embodiment, when the mounting heads 14A and 14B are attached to the attachment bracket 13, the engagement portion 90 has engagement portions 90A and 90C (first engagement portions) and engagement portions 90B and 90D (second engagement portions) spaced apart in the X-axis direction (first direction), and the rotation shaft 62 (first rotation shaft) and the rotation motor 61 (first rotation motor) are located between the engagement portions 90A and 90C and the engagement portions 90B and 90D in the X-axis direction. This configuration can further suppress centrifugal force and vibration when the mounting heads 14A and 14B move and stop.

[0102] Furthermore, in the mounting heads 14A, 14B of the embodiment, when the mounting heads 14A, 14B are attached to the attachment bracket 13, the engagement portion 90 has an upper end and a lower end as end portions in the Z-axis direction (lifting direction), and the rotation motor 61 (first rotation motor) is located between the upper end and the lower end in the Z-axis direction. This configuration can further suppress centrifugal force and vibration when the mounting heads 14A, 14B move and stop.

[0103] Furthermore, in the mounting heads 14A and 14B of the embodiment, when viewed from the X-axis direction (first direction) with the mounting heads 14A and 14B attached to the attachment bracket 13, each of the lift motors 23 (first lift motors) and the rotation motor 61 (first rotation motor) is disposed at a position facing the engagement portion 90 in the Y-axis direction (second direction) intersecting the Z-axis direction (lift direction) and the X-axis direction. This configuration can further suppress centrifugal force and vibration when the mounting heads 14A and 14B move and stop.

[0104] Furthermore, in the mounting heads 14A and 14B of the embodiment, the engagement portion 90 has a bearing that engages with the linear rail 12. According to this configuration, by using a bearing as the engagement portion 90, it becomes possible to slide in the X-axis direction with an inexpensive configuration.

[0105] Moreover, the mounting heads 14A, 14B of the embodiment further include X-axis moving tables 11A, 11B (first moving mechanism) that move the mounting heads 14A, 14B in the X-axis direction (first direction) along the linear rail 12, and a Y-axis moving table 7 (second moving mechanism) that moves the X-axis moving tables 11A, 11B in the Y-axis direction along a linear rail 8 (second linear rail) that extends in the Y-axis direction (second direction) intersecting the X-axis direction. With this configuration, the mounting heads 14A, 14B can be moved in the X-axis and Y-axis directions.

[0106] Moreover, the mounting heads 14A, 14B of the embodiment further include blocks 82, 84 that hold a plurality of nozzle units 15 (first nozzle units) and a rotation drive mechanism 59 (first rotation drive mechanism), and the mounting heads 14A, 14B are configured to be attached to the mounting machine body by directly or indirectly fixing the block 84 to the mounting bracket 13. With this configuration, the mounting heads 14A, 14B can be easily attached to the mounting machine body.

[0107] Although the present disclosure has been described above with reference to the above-mentioned embodiment, the present disclosure is not limited to the above-mentioned embodiment. For example, in the present embodiment, a total of 16 nozzle units 15 (2 rows x 8 units) are provided, but the number of nozzle units 15 is not limited to this. It is sufficient that at least two nozzle units 15 are arranged along the X-axis direction.

[0108] In addition, in the present embodiment, the multiple nozzle units 15 are divided into two groups, the left side X1 of the drawing and the right side X2 of the drawing, and the belt 58 is connected to each group, and a corresponding rotation drive mechanism 59 is provided, but the present invention is not limited to this case. For example, all the nozzle units 15 may be grouped into one group, and only one corresponding belt 58 and one corresponding rotation drive mechanism 59 may be provided. Alternatively, the nozzle units 15 may be divided into three or more groups, and a belt may be connected to each group, and a corresponding rotation drive mechanism may be provided.

[0109] In addition, in the present embodiment, a case has been described in which four engagement portions 90 are provided for two linear rails 12, but the present invention is not limited to such a case. For example, one or three or more engagement portions may be provided for one linear rail 12, and the number of linear rails 12 may be one or three or more.

[0110] Although the present disclosure has been fully described in connection with the preferred embodiments with reference to the accompanying drawings, various modifications and alterations will be apparent to those skilled in the art. Such modifications and alterations should be understood to be included within the scope of the present disclosure as defined by the appended claims, unless they deviate from the scope of the present disclosure. In addition, changes in the combination and order of elements in each embodiment may be made without departing from the scope and spirit of the present disclosure. [Industrial Applicability]

[0111] The present disclosure is applicable to any mounting head and a component mounting device including the same. [Explanation of symbols]

[0112] 13 Mounting bracket 14A Mounting head (first mounting head) 14B Mounting head (second mounting head) 15 Nozzle unit (1st nozzle unit, 2nd nozzle unit) 21 Suction nozzle 23 Lift motor (first lift motor, second lift motor) 24 Shaft (1st shaft, 2nd shaft) 58 Belt 59 Rotation drive mechanism (first rotation drive mechanism, second rotation drive mechanism) 61 Rotary motor (first rotary motor, second rotary motor) 62 Rotation axis (1st rotation axis, 2nd rotation axis) 90 Engagement portion (first engagement portion, second engagement portion)

Claims

1. a plurality of first nozzle units each including a first shaft to which a suction nozzle is connected and a first lifting motor for lifting and lowering the first shaft, the first nozzle units being arranged side by side in a first direction intersecting a lifting direction of the first shaft; a first rotary drive mechanism including a first rotary shaft connected to the plurality of first shafts via a rotary force transmission means and a first rotary motor that rotates the first rotary shaft; A mounting head, wherein the first rotation shaft and the first rotation motor are located between first nozzle units at both ends of the plurality of first nozzle units in the first direction.

2. When viewed from the lifting direction, the mounting head is attached to the mounting machine body toward a second direction intersecting the first direction, The mounting head according to claim 1 , wherein the first rotary shaft and the first rotary motor are disposed at positions shifted in the second direction with respect to the plurality of first nozzle units.

3. a plurality of air control devices provided corresponding to the first shafts so as to control the air flow of each of the suction nozzles; the plurality of air control devices are arranged along the first direction at positions offset in the second direction with respect to the plurality of first nozzle units, The mounting head according to claim 2 , wherein the plurality of air control devices include a first air control device and a second air control device having a gap therebetween through which the rotational force transmission means passes.

4. The mounting head according to claim 3 , wherein the first rotation shaft is disposed in the gap.

5. The mounting head according to claim 1 , wherein the plurality of first nozzle units are provided in two rows at different positions in the lifting / lowering direction and in a second direction intersecting the first direction.

6. a plurality of second nozzle units, each of which includes a second shaft to which a suction nozzle is connected and a second lifting motor that lifts and lowers the second shaft, the second nozzle units being arranged side by side in the first direction and disposed at different positions in the first direction with respect to the plurality of first nozzle units; a second rotary drive mechanism including a second rotary shaft connected to the second shafts via a rotary force transmission means and a second rotary motor that rotates the second rotary shaft; The mounting head according to claim 1 , wherein when viewed from the lifting direction, the second rotation shaft and the second rotation motor are located between the second nozzle units at both ends of the plurality of second nozzle units in the first direction.

7. The mounting head of claim 1 , wherein the rotational force transmission means comprises a belt.

8. The mounting head according to any one of claims 1 to 7; a mounting machine main body to which the mounting head is attached, the mounting machine body includes a first linear rail extending in the first direction and a mounting bracket having an engagement portion that slidably engages with the first linear rail, The mounting head is attached to the mounting bracket.

9. With the mounting head attached to the mounting bracket, The engaging portion has a first end and a second end as ends in the first direction, The component mounting device according to claim 8 , wherein the first rotating shaft and the first rotating motor are located between the first end and the second end in the first direction.

10. With the mounting head attached to the mounting bracket, The engaging portion includes a first engaging portion and a second engaging portion spaced apart in the first direction, The component mounting device according to claim 8 , wherein the first rotating shaft and the first rotating motor are located between the first engaging portion and the second engaging portion in the first direction.

11. With the mounting head attached to the mounting bracket, The engagement portion has an upper end and a lower end as ends in the lifting direction, The component mounting device according to claim 8 , wherein the first rotary motor is located between the upper end and the lower end in the lifting direction.

12. With the mounting head attached to the mounting bracket, 9. The component mounting device of claim 8, wherein when viewed from the first direction, each of the first lifting motors and the first rotating motor is positioned opposite the engagement portion in a second direction that intersects the lifting direction and the first direction.

13. The component mounting device according to claim 8 , wherein the engaging portion has a bearing that engages with the first linear rail.

14. a first moving mechanism that moves the mounting head in the first direction along the first linear rail; The component mounting device according to claim 8 , further comprising: a second moving mechanism that moves the first moving mechanism in the second direction along a second linear rail that extends in a second direction intersecting the first direction.

15. a block for holding the plurality of first nozzle units and the first rotary drive mechanism; The component mounting device according to claim 8 , wherein the mounting head is configured to be attached to the mounter body by directly or indirectly fixing the block to the mounting bracket.

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